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Journal articles on the topic 'Absorbent selectivity'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Chen, Wanren, Hua Li, and Xiaoshuang Chen. "Research on selectivity removing SO2 from flue gas with a novel absorbent." JOURNAL OF ADVANCES IN CHEMISTRY 2, no. 2 (2006): 110–19. http://dx.doi.org/10.24297/jac.v2i2.901.

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Compared with the traditional methods of removal SO2 from flue gas, the organic solvent absorption has some advantages as low investment, high SO2 absorption efficiency and desorption efficiency. For the industrial application of organic solvent absorption as soon as possible, some laboratory research on selectively removing SO2 and NOx from flue gas in the presence of CO2 and an enlarged experiment has been done with a novel absorbent of Mn(II)+ DMSO. The effect on desulfurization selectivity for absorbents is studied. And the regeneration capacities for absorbent are researched. The result s

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Bueno, Jose de Jesus Perez, Esmeralda Reséndiz Rojas, Jorge Morales Hernandez, Maria Luisa Mendoza López, and Rufino Alberto Chávez Esquivel. "Copper Black Coatings for the Absorption of Solar Concentration With an APPJ SiO2 Super-Hydrophobic Protection." International Journal of Environmental Sustainability and Green Technologies 12, no. 1 (2021): 76–87. http://dx.doi.org/10.4018/ijesgt.20210101.oa1.

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Solar thermal energy can be captured on absorbent surfaces, but coatings tend to deteriorate, due to changes in hue, thermal shocks, or detachment of all layers. There is a great challenge in reducing the deterioration because of environmental factors such as corrosion, impact, and dust control, among others. The absorbent coatings interact with the incident solar radiation transforming it as heat energy, and selectivity allows a low emissivity. In this work, a three-layer system on copper is proposed. An anodized CuO or black copper layer as an absorbent with high absorptance is proposed. A p

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Dissanayake, Shamitha, Christopher Vanlangenberg, Sanjay V. Patel, and Todd Mlsna. "Conducting absorbent composite for parallel plate chemicapacitive microsensors with improved selectivity." Sensors and Actuators B: Chemical 206 (January 2015): 548–54. http://dx.doi.org/10.1016/j.snb.2014.09.069.

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He, Xinying, Yunqiu Yu, and Yan Li. "Facile synthesis of boronic acid-functionalized magnetic metal–organic frameworks for selective extraction and quantification of catecholamines in rat plasma." RSC Advances 8, no. 73 (2018): 41976–85. http://dx.doi.org/10.1039/c8ra07356b.

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MG@MIL-100-B takes magnetic Fe<sub>3</sub>O<sub>4</sub>microparticles as core and coated by MIL-100-B shows great potential as a SPE absorbent material for the analysis of catecholamines, due to its rapid magnetic separation, outstanding sensitivity and selectivity.

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Zhang, Yingying, Xuzhao Yang, Jingli Han, et al. "Screening of Pure ILs and DESs for CO2 Separation, N2O Separation, and H2S Separation Processes." International Journal of Chemical Engineering 2023 (February 18, 2023): 1–20. http://dx.doi.org/10.1155/2023/8691957.

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Ionic liquids (ILs) are proposed as potential “green” solvents with remarkable properties. Deep eutectic solvents (DESs) are a new type of ILs with additional properties, such as higher biodegradability and a lower price. ILs and DESs are “green” absorbents for various gas separations, such as CO2/N2, CO2/H2/CO, H2S/CH4, and N2O/N2. Due to their large number, the screening of ILs is crucial. Although ILs with high absorption capacities were screened using gas solubility and selectivity, it is important to consider the energy and solvents used in the process. In this paper, the absorbent amount

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Zhang, Ka, Tongchang Zhou, Cedric Dicko, Lei Ye, and Leif Bülow. "Preparation and Utilization of a Highly Discriminative Absorbent Imprinted with Fetal Hemoglobin." Polymers 16, no. 19 (2024): 2734. http://dx.doi.org/10.3390/polym16192734.

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Development in hemoglobin-based oxygen carriers (HBOCs) that may be used as alternatives to donated blood requires an extensive supply of highly pure hemoglobin (Hb) preparations. Therefore, it is essential to fabricate inexpensive, stable and highly selective absorbents for Hb purification. Molecular imprinting is an attractive technology for preparing such materials for targeted molecular recognition and rapid separations. In this case study, we developed human fetal hemoglobin (HbF)-imprinted polymer beads through the fusion of surface imprinting and Pickering emulsion polymerization. HbF w

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Rambe, H. S., I. Irvan, B. Trisakti, T. bin Nur, M. S. Cahyono, and M. N. Aridito. "CO₂ absorption using aqueous potassium carbonate (K₂CO₃) promoted by piperazine (PZ) in packed column reactor." IOP Conference Series: Earth and Environmental Science 1352, no. 1 (2024): 012024. http://dx.doi.org/10.1088/1755-1315/1352/1/012024.

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Abstract Carbon dioxide (CO2) is the main contributor in gases that can reduce the heating value and the greenhouse effect on the atmosphere. Several CO2 absorption technologies can be used to reduce CO2 content. Chemical absorption have selectivity and a high absorption rate. This research will study the effect of the addition piperazine (PZ) into 30wt % potassium carbonate (K2CO3) at 30 °C, 40 °C and 50 °C, PZ (1, 3 and 5) % and absorbent flow rate (1, 1.5 and 2) L min−1. The research was conducted in packed column made of stainless steel with height 150 cm and a diameter 9.6 cm filled with

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Hastuti, Sri, Ema N. Fajariani, Intan K. Candraningrum, Tri Martini, Sayekti Wahyuningsih, and Fitri N. Aini. "Rice husk ash-based selective absorbent with imprinted ionic for gold recovery." Communications in Science and Technology 9, no. 2 (2024): 227–34. https://doi.org/10.21924/cst.9.2.2024.1461.

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The recovery of gold from aqueous solutions is crucial due to its economic value and environmental significance, making effective separation technologies essential. To tackle this challenge, development of an adsorbent with enhanced selectivity and high adsorption capacity against Au(III) is highly crucial. This present study harnessed rice husk derived-silica functionalized by (3-trimethoxysilyl)propyldiethylenetriamine (TMPDT) using imprinted ionic method to form SiO2-TMPDT-Au-Imp, specifically designed for the selective adsorption of Au(III). SiO2-TMPDT-Au-Imp demonstrated a significantly h

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9

Xue, Jingwen, Chaoyue Yang, Jingqiang Fu, Jinlong He, and Jinjin Li. "Research and Performance Evaluation on Selective Absorption of H2S from Gas Mixtures by Using Secondary Alkanolamines." Processes 10, no. 9 (2022): 1795. http://dx.doi.org/10.3390/pr10091795.

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Exploring new solvents for efficient acid gas removal is one of the most attractive topics in industrial gas purification. Herein, using 2-tertiarybutylamino-2-ethoxyethanol as an absorbent in a packed column at atmospheric pressure was examined for selective absorption of H2S from mixed gas streams. In the present work, the acid gas load, H2S absorption selectivity, acid gas removal ratio, amine solution regeneration performance, and corrosion performance were investigated through evaluating experiments absorbing H2S and CO2 by using methyldiethanolamine and 2-tertiarybutylamino-2-ethoxyethan

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10

Sun, Jian Zhi, Yan Dong, and Chun Yan Kong. "Selective Sodium Removal from Lithium Chloride Brine with Novel Inorganic Ion Exchanger Li_1.4Al_0.4Ti_1.6 (PO₄)₃." Key Engineering Materials 636 (December 2014): 3–6. http://dx.doi.org/10.4028/www.scientific.net/kem.636.3.

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The powder of Li1.4Al0.4Ti1.6 (PO4) 3 has been synthesized by a solid phase reaction between Li2CO3, Al2O3, TiO2 and NH4H2PO4. Sodium removal was studied in an extensive series of tests involving different ionic exchange process variables such as time and temperature. The results indicate that the Na/Li ion exchange reaction rate increased obviously with increasing temperature, and the Na/Li ion exchange kinetics process of Li1.4Al0.4Ti1.6 (PO4) 3 in lithium chloride solution could be shown approximately by the equation of JMAK. Furthermore, it is concluded that the Na+-removed materials obtai

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11

Pan, Wenshuo, Shaojuan Zeng, Jiang Chang, Guilin Li, Wei Zhang, and Xiangping Zhang. "Ultramicroporous Ionic Liquid-Supported Aerogel Composites." Nanomaterials 15, no. 7 (2025): 526. https://doi.org/10.3390/nano15070526.

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Recently, low-concentration ammonia (NH3) capture has attracted considerable attention for applications in ammonia–hydrogen fuel cells and confined spaces. The main objective of this study was to develop novel ultramicropore ionic liquid-supported aerogel composites (UILACs), designed to effectively expose the multiple hydrogen bonding sites of the ionic liquid through the constructed ultramicropore structure in order to capture and selectively separate low-concentration NH3. UILACs achieved a maximum NH3 capacity of 164.69 mg NH3/g absorbent at 25 °C and 0.10 MPa, which was 3.47 times higher

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Zhao, Dan Hua, Xiao Jun Liu, Xiu Lian Zhang, and Wei Yin. "Facile Synthesis of Dye Waste-Calcium Fluoride Hybrid Absorbent and Application to Dye Wastewater Treatment." Applied Mechanics and Materials 275-277 (January 2013): 2338–45. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2338.

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A new hybrid material of CaF2/ABB6B (CFAB) was developed by the template-free hybridization of acid brilliant blue 6B (ABB6B) with CaF2. The composition and structure of the material were determined and characterized. In contrast to conventional sorbents, the hybrid material contains lots of negative charges as the basis of specific adsorption. The efficient removal of cationic dyes of victoria blue B (VBB), ethyl violet (EV) and basic brilliant blue BO (BBBO) indicates that it has an improved adsorption capacity and selectivity with a short removal time less than 5 min; while the hybrid sorbe

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13

Zakharikhina, Lalita, and Elena Vinitskaya. "Mirroring Land and Sea: The Geochemistry of Coastal Biomarkers." Ecologica Montenegrina 64 (July 31, 2023): 207–20. http://dx.doi.org/10.37828/em.2023.64.6.

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This study examined the chemical pollution of macroalgae and mussels in the coastal region of the Black Sea, near the mouths of the Sochi and Mzymta rivers. A comprehensive analysis was conducted to establish a correlation between the chemical composition of these organisms and the components of the terrestrial ecosystem, with a specific emphasis on the behavior of rare earth elements (REEs). The study revealed that the fractionation pattern of REEs in the terrestrial ecosystem was duplicated in both algae and mussels. However, a less pronounced fractionation was observed in organisms that wer

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14

Ghosh, Bablu K., Prafulla Kumar Jha, Swapan K. Ghosh, and Tapan K. Biswas. "Organic solar cells pros and cons: Outlooks toward semitransparent cell efficiency and stability." AIP Advances 13, no. 2 (2023): 020701. http://dx.doi.org/10.1063/5.0124743.

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Organic solar cells (OSCs) are promising for low emissive photovoltaic technology. Excitonic absorption and charge generation to transport process OSC energy loss lessening are central. In this context, donor–acceptor barrier offset, related binding, and thermal effect on energy loss are the key challenge. Semitransparent organic solar cell visible band transmission and near infrared band absorption are anticipated. Near infrared band absorption in a Si material solar cell is higher that supports more energy conversion. Moreover, greater carrier selectivity and open circuit voltage (Voc) is in

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15

Alatawi, Lila, Abdul Halim Abdullah, Siti Nurul Ain Md Jamil, and Robiah Yunus. "A Facile and Green Synthesis of Hydrophobic Polydimethylsiloxane Foam for Benzene, Toluene, and Xylene Removal." Separations 10, no. 7 (2023): 377. http://dx.doi.org/10.3390/separations10070377.

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Due to its excellent properties, polydimethylsiloxane (PDMS) foam has recently attracted significant academic and industrial attention. In this study, a facile and green method was developed for PDMS foam synthesis. The PDMS foam was prepared by using the gas foaming method with eco-friendly materials, namely NaHCO3 as a blowing agent and acetic acid as the catalyst. By changing the ratios of the reactants and the curing temperature, foams with varying properties were obtained. The water contact angle of the obtained PDMS foams ranged from 110° to 139°. We found that the PDMS foams can be comp

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16

Wang, Zhaowei, Shuang Song, Huan Wang, Wenchao Yang, Jianbo Han, and Hong Chen. "Feasibility of Remediation of Heavy-Metal-Contaminated Marine Dredged Sediments by Active Capping with Enteromorpha Biochar." International Journal of Environmental Research and Public Health 19, no. 9 (2022): 4944. http://dx.doi.org/10.3390/ijerph19094944.

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Enteromorpha biochar (BC) has been proposed as a potential absorbent in the marine environments. This study attempts to understand the process of active capping using Enteromorpha BC to prevent the release of heavy metals (Pb and Cd) from contaminated marine dredged sediments. The capping efficiency was assessed with a series of lab-scale column experiments. Results showed that the Enteromorpha BC exhibits rough pore structure and higher specific surface area, as well as more surface organic functional groups, which is favorable for its adsorption capacity and selectivity towards heavy metals.

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Walia, Sunil, Amit Asthana, Juewen Liu, and Sushanta Mitra. "A Low-Cost Cellulose-Based POC Device for Detection of COVID-19." ECS Meeting Abstracts MA2022-01, no. 53 (2022): 2176. http://dx.doi.org/10.1149/ma2022-01532176mtgabs.

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Point-of-care diagnostic (POC) is of utmost importance for the fight against pandemics which provides easy, instant results right at your place. POC can transform healthcare management and create superior infrastructure. In POC, employing lateral flow assays (LFAs) can accelerate the assessment and shorten the treatment time. LFA is a small handheld device made from paper that controllably delivers the analyte without the need of an active pump to the detection area to produce the signal, generally coloured nanoparticles (Au, carbon). Conventional LFA device is made of four components, sample

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18

Dou, Zeou, Ting Wang, Wensi Chen, et al. "Self-driven membrane filtration by core–shell polymer composites." Journal of Materials Chemistry A 8, no. 31 (2020): 15942–50. http://dx.doi.org/10.1039/d0ta03617j.

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19

Wang, Kangkang, Li Shi, Haishan Zou, Sipei Zhao, Chen Shen, and Jing Lu. "A broadband active sound absorber with adjustable absorption coefficient and bandwidth." Journal of the Acoustical Society of America 156, no. 2 (2024): 1048–57. http://dx.doi.org/10.1121/10.0028196.

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Broadband adjustable sound absorbers are desired for controlling the acoustic conditions within enclosed spaces. Existing studies on acoustic absorbers, either passive or active, aim to maximize the sound absorption coefficients over an extended frequency band. By contrast, this paper introduces a tunable acoustic absorber, whose working frequency band and sound absorption characteristics can be defined by users for different applications. The approach leverages an error signal that can be synthesized using a standing wave separation technique. The error signal encodes different target reflect

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20

Ciko, Krisida, Suzana Kola, and Ariola Bacu. "Extraction and Analysis of Mycotoxins from Whole Wheat Flour - A Methods Efficiency Comparison." EuroBiotech Journal 8, no. 4 (2024): 195–212. http://dx.doi.org/10.2478/ebtj-2024-0019.

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Abstract Wheat is considered as staple food source for 40% of the population worldwide. Yet, the yield and quality can be compromised by fungal diseases, which are also responsible for mycotoxins presence at wheat seeds and originating foodstuff. In this context, the tackling of this problem by developing regulatory limits and standards have induced the development of various methods for sampling, extraction, identification and quantification of mycotoxins in food samples. This review addresses the comparison of the technical and cost efficiency of methods for the extraction and qualitative- q

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Baldermann, Andre, Yvonne Fleischhacker, Silke Schmidthaler, Katharina Wester, Manfred Nachtnebel, and Stefanie Eichinger. "Removal of Barium from Solution by Natural and Iron(III) Oxide-Modified Allophane, Beidellite and Zeolite Adsorbents." Materials 13, no. 11 (2020): 2582. http://dx.doi.org/10.3390/ma13112582.

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Efficient capture of barium (Ba) from solution is a serious task in environmental protection and remediation. Herein, the capacity and the mechanism of Ba adsorption by natural and iron(III) oxide (FeO) modified allophane (ALO), beidellite (BEI) and zeolite (ZEO) were investigated by considering the effects of contact time, temperature, pH, Ba2+ concentration, adsorbent dosage, the presence of competitive ions and adsorption–desorption cycles (regenerability). Physicochemical and mineralogical properties of the adsorbents were characterized by XRD, FTIR, SEM with EDX and N2 physisorption techn

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Monty-Bromer, Chelsea, Victoria Stege, and Madison Luthy. "(Invited) Carbon Nanotube-Based Fabric Sensor for Selective Determination of Sweat Biomarkers." ECS Meeting Abstracts MA2025-01, no. 11 (2025): 950. https://doi.org/10.1149/ma2025-0111950mtgabs.

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Despite the recent advancements in sensor detection of biomarkers in sweat, there is no sensor capable of long-term detection in constricted or load-bearing applications where other flexible plastic sensors might cause discomfort. In this work, a carbon nanotube-based fabric sensor capable of real-time detection of biomarkers in human sweat is presented. The sensor consists of an electrospun nylon-6 base functionalized with multi-walled carbon nanotubes for enhanced conductivity and further functionalized for selective detection. Monitoring sweat is a compelling choice to gain insight into a p

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Čekon, Miroslav, Karel Struhala, and Daniel Kopkáně. "Preparation and Characterization of a Selective Polymer-Based Solar Absorber for Building Integration." Applied Sciences 10, no. 21 (2020): 7861. http://dx.doi.org/10.3390/app10217861.

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Recent technological advances in solar absorber production may have created opportunities for new applications of these materials in buildings. A low-emissivity enhanced polymer-based absorber foil was developed and prototyped to demonstrate feasibility of the concept. This paper describes key development factors leading to a particular composition of the prototype and its testing, specifically spectroscopy measurements (both for shortwave and longwave regions) and environmental impact assessment of its production. It also provides comparison of the tested parameters with commercially availabl

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Xiong, Ying, Xiaoyi Liu, Jian Zhang, et al. "High-Performance Ultra-Broadband Absorber for Polarized Long-Wavelength Infrared Light Trapping." Coatings 12, no. 8 (2022): 1194. http://dx.doi.org/10.3390/coatings12081194.

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Conventional infrared polarization imaging and detection systems are normally complex, bulky, and expensive, since rare existing absorber components possess polarization selectivity, especially in the long-wavelength infrared (LWIR) range. In this study, we propose a novel high-performance metamaterial absorber with ultra-broadband high absorption and polarization selectivity in the entire LWIR atmospheric window. The absorber can realize an absorptance higher than 90% with a 4750 nm bandwidth due to different surface plasmons coupled with optical phonons. It exhibits precise polarization-sele

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Monty-Bromer, Chelsea, Zachary Cheney, Shelby Daniels, et al. "(Invited) Carbon Nanotube-Based Fabric Sensor for Selective Sodium Detection in Sweat." ECS Meeting Abstracts MA2022-01, no. 8 (2022): 674. http://dx.doi.org/10.1149/ma2022-018674mtgabs.

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Despite the recent advancements in sensor detection of biomarkers in sweat, there is no sensor capable of long-term detection in constricted or load-bearing applications where other flexible plastic sensors might cause discomfort. In this work, a carbon nanotube-based fabric sensor capable of real-time detection of sodium in human sweat is presented. The sensor consists of an electrospun nylon-6 base functionalized with multi-walled carbon nanotubes for enhanced conductivity and p-tert-calix[4]arene for enhanced sodium selectivity. Monitoring sweat is a compelling choice to gain insight into a

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Monty-Bromer, Chelsea, Victoria Stege, Shelby Daniels, Michael Fulmer, Zachary Cheney, and Ronald Otterstetter. "Wearable Fabric Sensor Using Functionalized MWCNT Nanocomposite Material." ECS Meeting Abstracts MA2023-02, no. 9 (2023): 1007. http://dx.doi.org/10.1149/ma2023-0291007mtgabs.

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Despite the recent advancements in sensor detection of biomarkers in sweat, there is no sensor capable of long-term detection in constricted or load-bearing applications where other flexible plastic sensors might cause discomfort. In this work, a carbon nanotube-based fabric sensor capable of real-time detection of sodium in human sweat is presented. The sensor consists of an electrospun nylon-6 base functionalized with multi-walled carbon nanotubes for enhanced conductivity and p-tert-calix[4]arene for enhanced sodium selectivity. Monitoring sweat is a compelling choice to gain insight into a

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Abdullahi, S. A., R. Akoba, J. Sackey, et al. "Investigation of the Thermal Stability of a Solar Absorber Processed through a Hydrothermal Technique." Solar 2, no. 4 (2022): 414–31. http://dx.doi.org/10.3390/solar2040025.

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In this work, we study the thermal stability of a hydrothermally treated stainless steel (SS) selective solar absorber by annealing in air in a temperature range between 300 °C and 700 °C for a soaking time of 2 h. Thermal stability testing in the presence of air is critical if the vacuum is breached. Therefore, the SS was characterized by X-ray diffraction (XRD), mechanical, and optical techniques. The XRD analysis shows that the grain size of the as-treated absorber is 67 nm, whereas those of the annealed absorbers were found to be in the range between 66 and 38 nm. The phase of the as-treat

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Kala, K. Lakshmi, G. Anbuchezhiyan, Kavitha Pingili, et al. "Employing a Carbon-Based Nanocomposite as a Diffusive Solid-Phase Extraction Adsorbent for Methamphetamine for Therapeutic Purposes." Adsorption Science & Technology 2023 (April 14, 2023): 1–12. http://dx.doi.org/10.1155/2023/8650678.

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Due to the obvious minimal doses of drugs in biological matrices as well as the societal difficulties caused by methamphetamine usage, methamphetamine identification is critical in clinical and forensic laboratories. Because of their simple and inexpensive production procedure, as well as their excellent selectivity and sensitivity, polymeric carbon-based nanocomposites are strong contenders for the diffusive solid-phase extraction approach. The diffusive solid-phase extraction absorbent nanographene oxide polypyrrole composite was produced and used to recover methamphetamine from a complicate

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Mermiga, Electra, Varvara Pagkali, Christos Kokkinos, and Anastasios Economou. "An Aptamer-Based Lateral Flow Biosensor for Low-Cost, Rapid and Instrument-Free Detection of Ochratoxin A in Food Samples." Molecules 28, no. 24 (2023): 8135. http://dx.doi.org/10.3390/molecules28248135.

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In this work, a simple and cost-efficient aptasensor strip is developed for the rapid detection of OTA in food samples. The biosensor is based on the lateral flow assay concept using an OTA-specific aptamer for biorecognition of the target analyte. The strip consists of a sample pad, a conjugate pad, a nitrocellulose membrane (NC) and an absorbent pad. The conjugate pad is loaded with the OTA-specific aptamer conjugated with gold nanoparticles (AuNPs). The test line of the NC membrane is loaded with a specific OTA-aptamer probe and the control line is loaded with a control probe. The assay is

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Wang, Xiaobo, Yabin Kang, Xiaopeng Yuan, Dianqing Gong, and Kewei Li. "A Feasible and Promising Strategy for Improving the Solar Selectivity and Thermal Stability of Cermet-Based Photothermal Conversion Coatings." Materials 15, no. 19 (2022): 6847. http://dx.doi.org/10.3390/ma15196847.

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A novel multilayer, solar selective absorbing coating that contains lamellar-distributed nanoparticles in its cermet-absorbing sublayers has been fabricated using ion-source-assisted cathodic arc plating. The multilayer coating shows an outstanding selectivity, i.e., a high solar absorptance (0.909), yet it has a low thermal emittance (0.163). More importantly, the long-term thermal stability tests demonstrate that the lamellar-structured absorbers can remain stable, even when annealed at 500 °C for 1000 h in ambient air. The coating’s enhanced selectivity and thermal stability were attributed

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Xiong, Qiancheng, Qiuhong Bai, Cong Li, et al. "Cost-Effective, Highly Selective and Environmentally Friendly Superhydrophobic Absorbent from Cigarette Filters for Oil Spillage Clean up." Polymers 10, no. 10 (2018): 1101. http://dx.doi.org/10.3390/polym10101101.

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Ecological and environmental damage caused by oil spillage has attracted great attention. Used cigarette filters (CF) have also caused negative environmental consequences. Converting CF to economical materials is a feasible way to address these problems. In this study, we demonstrate a simple method for production of a highly hydrophobic absorbent from CF. CF was modified by using different volume ratios of octadecyltrichlorosilane and methyltrimethoxysilane. When the volume ratio was 3:2, the modified CF had the high water contact angle of 155°. It could selectively and completely absorb sili

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Gao, Wei, Yoko Kanahara, Misako Yamada, et al. "Contrasting Toxin Selectivity between the Marine Pufferfish Takifugu pardalis and the Freshwater Pufferfish Pao suvattii." Toxins 11, no. 8 (2019): 470. http://dx.doi.org/10.3390/toxins11080470.

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To clarify the differences in toxin selectivity between marine and freshwater pufferfish, we conducted experiments in artificially reared nontoxic specimens of Takifugu pardalis (marine) and Pao suvattii (freshwater) using tetrodotoxin (TTX) and paralytic shellfish poison (PSP; decarbamoylsaxitoxin (dcSTX) or saxitoxin (STX)). T. pardalis specimens were administered feed homogenate containing TTX or dcSTX (dose of toxin, 55.2 nmol/fish) and P. suvattii specimens were administered feed homogenate containing TTX + STX (dose of each toxin, 19.2 nmol/fish) by oral gavage. The toxin content in the

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Shoshi, Astrit, Thomas Maier, and Hubert Brueckl. "Enhanced wavelength-selective absorber for thermal detectors based on metamaterials." Journal of Sensors and Sensor Systems 5, no. 1 (2016): 171–78. http://dx.doi.org/10.5194/jsss-5-171-2016.

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Abstract. The dissipative electromagnetic energy absorption of tailored metamaterials can be exploited to improve the spectral sensitivity and selectivity of thermal detectors. The desired detector characteristics are engineered by tuning the single- or multiband absorption by resonance frequency, magnitude, and spectral bandwidth, strongly depending on the geometrical design of metamaterials. Here, the optical absorption properties of trilayer and multilayer resonant structures are investigated by numerical simulations. We consider isotropic, i.e., polarization-independent, disk-shaped absorb

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Won, Da Hye, Kezia Langie, Kyungjae Tak, and Ung Lee. "Direct Electrochemical Conversion of Amine-Captured CO₂ into High Concentrated C1 Products." ECS Meeting Abstracts MA2024-02, no. 62 (2024): 4248. https://doi.org/10.1149/ma2024-02624248mtgabs.

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Electrochemical CO2 conversion (eCO2R) into value-added products presents a promising strategy for mitigating global warming. However, this technology faces a significant challenge: supplying high-purity CO2 and purifying the product requires a substantial amount of thermal energy, as most systems typically use highly concentrated CO2 as a reactant. Herein, we suggested a new concept of system that bypasses energy-intensive conditioning by directly converting amine-captured CO2 into highly concentrated syngas and formic acid, using a novel amine-type CO2 absorbent, triethylamine (TREA). Our ex

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Wang, Pu, Ziang Gao, Zhengshan Xu, and Tonggang Zhao. "Perfect Solar Absorber Based on Four-Step Stacked Metamaterial." Photonics 10, no. 10 (2023): 1082. http://dx.doi.org/10.3390/photonics10101082.

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Solar absorbers are of great significance in the development of new energy technologies. However, the current approaches are mostly complex and fail to achieve high absorption rates across a wide range of wavelengths. Here, we propose a four-step stacked metamaterial solar absorber that achieves near-perfect absorption. Our four-step stacked absorber (FSSA) boasts an average absorption rate of 96.32% from 499 nm to 2348.3 nm, and a high average absorption rate of 94.96% from 300 nm to 2500 nm. Electromagnetic mode analysis and the impedance matching theory were employed to analyze the designed

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Chorchong, Titiporn, Tawat Suriwong, Sukruedee Sukchai, and Thotsaphon Threrujirapapong. "Characterization and Spectral Selectivity of Sn-Al₂O₃ Solar Absorber." Key Engineering Materials 675-676 (January 2016): 467–72. http://dx.doi.org/10.4028/www.scientific.net/kem.675-676.467.

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In present work, tin-pigmented alumina (Sn-Al2O3) solar absorber on the aluminium substrate was successfully prepared by anodic anodization and further characterized by different methods. The phase, morphology, reflectance (R) and thermal conductivity of the Sn-Al2O3 solar absorber were measured by X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) equipped with energy dispersive X-ray (EDX) analyzer, and Ultraviolet-visible-near infrared spectrophotometer in the wavelength of 300-2500 nm. The solar absorptance (α) was calculated based on the relationship of the spectral reflectance,

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Aeberhard, Urs. "Quantum-kinetic Theory of Defect-mediated Recombination in Nanostructure-based Photovoltaic Devices." MRS Proceedings 1493 (2013): 91–96. http://dx.doi.org/10.1557/opl.2013.226.

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ABSTRACTIn this paper, a quantum-kinetic equivalent of Shockley-Read-Hall recombination is derived within the non-equilibrium Green's function formalism for a photovoltaic system with selectively contacted extended-state absorbers and a localized deep defect state in the energy gap. The novel approach is tested on a homogeneous bulk absorber and then applied to a thin film photo-diode with large built-in field in the defect-rich absorber region. While the quantum-kinetic treatment reproduces the semi-classical characteristics for a bulk absorber in quasi-equilibrium conditions, for which the l

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T.R.Yuldashev. "EFFICIENCY OF USING AMINE SOLUTIONS WITH HIGH SELECTIVITY IN CLEANING NATURAL GAS FROM ACIDIC COMPONENTS." Sanoatda raqamli texnologiyalar 1, no. 1 (2023): 86–92. https://doi.org/10.5281/zenodo.8377015.

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Conditions and criteria for choosing amines with high selectivity in sour gas purification are considered. In amine treatment, various mono- and diethanolamine solutions are used, and with their help, hydrogen sulfide, mercaptans and carbon gases are removed from the composition of natural gas. The article discusses the factors affecting the efficiency of amine purification of acid gases and feasibility of technical and economic feasibility. The main process that takes place in amine desulfurization is the absorption of hydrogen sulfide, mercaptans and carbon dioxide in the column apparatus (a

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Geng, Hai Bin, Tao Wu, and Cheng Wei Ma. "Deposition & Characterization of TiAlON & TiMoAlON Solar Absorber Coatings for High Temperature Photothermal Applications Prepared by PEM Controlled Dual-Gas Reactive Magnetron Sputtering." Advanced Materials Research 538-541 (June 2012): 344–49. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.344.

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A novel Plasma Emission Monitoring (PEM) controlled N2-O2 dual gas reactive dcMS method is proposed for deopsiting TiAlON and TiMoAlON solar absorber coatings. Working in a 'cheated' feedback mode, the PEM controller ensures smooth & precise control of O/N ratio in obtained oxy-nitrides without occuring of serious target poisoning. The coatings have three functional layers including the infrared reflector, the absorbing layer, and the antireflection layer. The absorbing layers of the two kinds of coatings are both designed to have a gradually change Al and/or O content. However, the TiAlON

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Alnoman, Rua B., Eman Nabil, Shazia Parveen, Mohamed Hagar, Mohamed Zakaria, and Ahmed A. Hasanein. "Synthesis and Computational Characterization of Organic UV-Dyes for Cosensitization of Transparent Dye-Sensitized Solar Cells." Molecules 26, no. 23 (2021): 7336. http://dx.doi.org/10.3390/molecules26237336.

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The fabrication of colorless and see-through dye-sensitized solar cells (DSCs) requires the photosensitizers to have little or no absorption in the visible light region of the solar spectrum. However, a trade-off between transparency and power conversion efficiency (PCE) has to be tackled, since most transparent DSCs are showing low PCE when compared to colorful and opaque DSCs. One strategy to increase PCE is applying two cosensitizers with selective conversion of the UV and NIR radiation, therefore, the non-visible part only is absorbed. In this study, we report synthesis of novel five UV-se

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Kernytskyy, Ivan, Serhii Baranovych, Serhii Berezovetskyi, Bohdan Diveyev, Orest Horbay, and Ihor Stukalets. "Vibration absorber optimization for boom-sprayer." Przegląd Naukowy Inżynieria i Kształtowanie Środowiska 27, no. 4 (2019): 504–15. http://dx.doi.org/10.22630/pniks.2018.27.4.47.

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The main task of this work is to analyze optimal design-system of the booms of boom-sprayers. The discrete-continue models of machines dynamics of such wheeled machines as boom-sprayer with elongated boom element with the attachment of dynamic vibration absorbers are offered. The algorithms for vibration decreasing of boom are received. The new vibroabsorbing elements are proposed. The paper contemplates the provision of dynamic vibration absorbers (DVA) of buffered impact masses and particle type. Such originally designed absorbers reduce vibration selectively in maximum vibration mode, witho

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Li, Jiakun, Zeqiang Chen, Hua Yang, et al. "Tunable Broadband Solar Energy Absorber Based on Monolayer Transition Metal Dichalcogenides Materials Using Au Nanocubes." Nanomaterials 10, no. 2 (2020): 257. http://dx.doi.org/10.3390/nano10020257.

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In order to significantly enhance the absorption capability of solar energy absorbers in the visible wavelength region, a novel monolayer molybdenum disulfide (MoS2)-based nanostructure was proposed. Local surface plasmon resonances (LSPRs) supported by Au nanocubes (NCs) can improve the absorption of monolayer MoS2. A theoretical simulation by a finite-difference time-domain method (FDTD) shows that the absorptions of proposed MoS2-based absorbers are above 94.0% and 99.7% at the resonant wavelengths of 422 and 545 nm, respectively. In addition, the optical properties of the proposed nanostru

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Nguyen Thi Phuong Nhung, Phan Minh Quoc Binh, Vo Van Vu Thanh, and Nguyen Van Kiet. "Developing superhydrophobic/superoleophilic polyurethane sponge based on Fe3O4 particles for oil - water separation." Petrovietnam Journal 6 (December 27, 2024): 82–87. https://doi.org/10.47800/pvsi.2024.06-09.

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Recently, the issue of oil and organic spills, driven by a growing human population, has become a significant concern globally, including in Vietnam. Researchers are increasingly focused on developing materials that can selectively absorb oils and organic solvents while repelling water. This project aimed to develop an oil-absorbing material by integrating stearic acid-modified Fe3O4 or Fe3O4 particles into a polyurethane (PU) foam base. The results demonstrated that the modified PU sponge exhibited superhydrophobic properties, with a water contact angle exceeding 150°, and superoleophilic cha

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Ogawa, Shinpei, Yousuke Takagawa, and Masafumi Kimata. "Elimination of Unwanted Modes in Wavelength-Selective Uncooled Infrared Sensors with Plasmonic Metamaterial Absorbers using a Subtraction Operation." Materials 12, no. 19 (2019): 3157. http://dx.doi.org/10.3390/ma12193157.

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Wavelength- or polarization-selective uncooled infrared (IR) sensors have various applications, such as in fire detection, gas analysis, hazardous material recognition, biological analysis, and polarimetric imaging. The unwanted modes originating due to the absorption by the materials used in these sensors, other than plasmonic metamaterial absorbers (PMAs), cause serious issues by degenerating the wavelength or polarization selectivity. In this study, we demonstrate a method for eliminating these unwanted modes in wavelength- or polarization-selective uncooled IR sensors with various PMAs, us

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Kirchstetter, T. W., and T. L. Thatcher. "Contribution of organic carbon to wood smoke particulate matter absorption of solar radiation." Atmospheric Chemistry and Physics 12, no. 14 (2012): 6067–72. http://dx.doi.org/10.5194/acp-12-6067-2012.

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Abstract. A spectroscopic analysis of 115 wintertime particulate matter samples collected in rural California shows that wood smoke absorbs solar radiation with a strong spectral selectivity. This is consistent with prior work that has demonstrated that organic carbon (OC), in addition to black carbon (BC), appreciably absorbs solar radiation in the visible and ultraviolet spectral regions. We apportion light absorption to OC and BC and find that the absorption Ångström exponent of the light-absorbing OC in these samples ranges from 3.0 to 7.4 and averages 5.0. Further, we calculate that OC wo

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Coscia, Nicola, Antonietta Cozzolino, Manohar Golla, and Paola Rizzo. "Absorption and Isomerization of Azobenzene Guest Molecules in Polymeric Nanoporous Crystalline Phases." Chemistry 3, no. 3 (2021): 1074–88. http://dx.doi.org/10.3390/chemistry3030078.

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PPO co-crystalline (CC) films including azobenzene guest molecules have been prepared and characterized by WAXD, FTIR and UV-Visible measurements. Isomerization reactions of azobenzene (photo-induced trans to cis and spontaneous cis to trans) included in α and β nanoporous-crystalline (NC) phases leading to CC phases, or simply absorbed in amorphous phase have been studied on thick and thin films. Spectroscopic analysis shows that photo-isomerization of azobenzene occurs without expulsion of azobenzene guest molecules from crystalline phases. Sorption studies of α and β NC films immersed into

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Yang, Liu, Lei Mo, Tuo Chen, Erik Forsberg, and Sailing He. "A checkerboard selective absorber with excellent spectral selectivity." Journal of Applied Physics 118, no. 18 (2015): 183103. http://dx.doi.org/10.1063/1.4935280.

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Punyamurtula, Venkata K., and Yu Qiao. "A selectively-energy-absorbing nanoporous system." Materials Letters 62, no. 17-18 (2008): 2928–30. http://dx.doi.org/10.1016/j.matlet.2008.01.077.

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Niranjan, K., Paruchuri Kondaiah, Arup Biswas, V. Praveen Kumar, G. Srinivas, and Harish C. Barshilia. "Spectrally Selective Solar Absorber Coating of W/WAlSiN/SiON/SiO2 with Enhanced Absorption through Gradation of Optical Constants: Validation by Simulation." Coatings 11, no. 3 (2021): 334. http://dx.doi.org/10.3390/coatings11030334.

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The properties of spectrally selective solar absorber coatings can be fine-tuned by varying the thickness and composition of the individual layers. We have deposited individual layers of WAlSiN, SiON, and SiO2 of thicknesses ~940, 445, and 400 nm, respectively, for measuring the refractive indices and extinction coefficients using spectroscopic ellipsometer measurements. Appropriate dispersion models were used for curve fitting of Ψ and Δ for individual and multilayer stacks in obtaining the optical constants. The W/WAlSiN/SiON/SiO2 solar absorber exhibits a high solar absorptance of 0.955 and

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Rzyanina, А. V., G. V. Mytsin, K. Sh Voskanyan, and V. N. Gaevskiy. "Enhancement of Genotoxic Activity of g-Irradiation of Human Lung Carcinoma A549 cells in the Presence of Gold Nanoparticles." Meditsinskaya Fizika 92, no. 4 (2022): 24–31. http://dx.doi.org/10.52775/1810-200x-2021-92-4-24-31.

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One of the main problems of radiotherapy is the lack of selectivity in the absorption of radiation energy by tumor cells due to the similar energy-absorbing properties of tumor and healthy tissues. An increase in the absorbed dose is achieved by introducing or delivering substances to tumor cells with a significantly larger radiation absorption cross-section than in normal cells. The resulting secondary shortrange radiation localizes the energy release near these elements and affects only nearby biological structures. The genotoxic effect of gold nanoparticles on tumor cells

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