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Journal articles on the topic 'Diffusion - Organic Dyes'

Author: Grafiati

Published: 7 September 2023

Last updated: 31 July 2025

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1

Chenyakin, Yuri, Dagny A. Ullmann, Erin Evoy, Lindsay Renbaum-Wolff, Saeid Kamal, and Allan K. Bertram. "Diffusion coefficients of organic molecules in sucrose–water solutions and comparison with Stokes–Einstein predictions." Atmospheric Chemistry and Physics 17, no. 3 (2017): 2423–35. http://dx.doi.org/10.5194/acp-17-2423-2017.

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Abstract. The diffusion coefficients of organic species in secondary organic aerosol (SOA) particles are needed to predict the growth and reactivity of these particles in the atmosphere. Previously, viscosity measurements, along with the Stokes–Einstein relation, have been used to estimate the diffusion rates of organics within SOA particles or proxies of SOA particles. To test the Stokes–Einstein relation, we have measured the diffusion coefficients of three fluorescent organic dyes (fluorescein, rhodamine 6G and calcein) within sucrose–water solutions with varying water activity. Sucrose–wat

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2

Klučáková, Martina. "Effect of Chitosan as Active Bio-colloidal Constituent on the Diffusion of Dyes in Agarose Hydrogel." Gels 9, no. 5 (2023): 395. http://dx.doi.org/10.3390/gels9050395.

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Agarose hydrogel was enriched by chitosan as an active substance for the interactions with dyes. Direct blue 1, Sirius red F3B, and Reactive blue 49 were chosen as representative dyes for the study of the effect of their interaction with chitosan on their diffusion in hydrogel. Effective diffusion coefficients were determined and compared with the value obtained for pure agarose hydrogel. Simultaneously, sorption experiments were realized. The sorption ability of enriched hydrogel was several times higher in comparison with pure agarose hydrogel. Determined diffusion coefficients decreased wit

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3

Smilek, Jiří, Michal Kalina, Marcela Laštůvková, Irena Türkeová, Petr Sedlacek, and Martina Klučáková. "Reactivity-Mapping Tool Based on Diffusion Techniques for Characterization of Biocolloids." Materials Science Forum 851 (April 2016): 130–34. http://dx.doi.org/10.4028/www.scientific.net/msf.851.130.

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The universal reactivity-mapping tool was developed for characterization and study on barrier properties of selected biopolymers. The reactivity of biocolloids (humic acids) was studied by both diffusion techniques (break-through diffusion technique and non-stationary diffusion). The rate of reactivity of humic acids was compared by the interactions with basic cationic organic dye (Methylene Blue) because of the positive interactions among anionic supramolecular humic acids and cationic organic dyes were expected. The reactivity and barrier properties of biocolloids were compared by determinat

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4

Dey, Shantanu, Ujjwal Mandal, Supratik Sen Mojumdar, Amit Kumar Mandal, and Kankan Bhattacharyya. "Diffusion of Organic Dyes in Immobilized and Free Catanionic Vesicles." Journal of Physical Chemistry B 114, no. 47 (2010): 15506–11. http://dx.doi.org/10.1021/jp1068347.

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5

Dollendorf, Christian, Susanne Katharina Kreth, Soo Whan Choi, and Helmut Ritter. "Polymerization of novel methacrylated anthraquinone dyes." Beilstein Journal of Organic Chemistry 9 (February 28, 2013): 453–59. http://dx.doi.org/10.3762/bjoc.9.48.

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A new series of polymerizable methacrylated anthraquinone dyes has been synthesized by nucleophilic aromatic substitution reactions and subsequent methacrylation. Thereby, green 5,8-bis(4-(2-methacryloxyethyl)phenylamino)-1,4-dihydroxyanthraquinone (2), blue 1,4-bis(4-((2-methacryloxyethyl)oxy)phenylamino)anthraquinone (6) and red 1-((2-methacryloxy-1,1-dimethylethyl)amino)anthraquinone (12), as well as 1-((1,3-dimethacryloxy-2-methylpropan-2-yl)amino)anthraquinone (15) were obtained. By mixing of these brilliant dyes in different ratios and concentrations, a broad color spectrum can be genera

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Noskov, Yu V., V. N. Bliznyuk, and A. A. Pud. "POLYANILINE, HALLOYSITE NANOTUBES AND THEIR NANOCOMPOSITE AS ADSORBENTS FOR ORGANIC DYES." Polymer journal 45, no. 3 (2023): 221–31. http://dx.doi.org/10.15407/polymerj.45.03.221.

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This work is devoted to the study of the adsorption efficiency of methylene blue and methyl orange dyes by polyaniline base (PANI), halloysite nanotubes (HNTs), and their nanocomposite (HNTs/PANI). PANI and the nanocomposite were prepared by the chemical oxidative polymerization of aniline in the absence and presence of HNTs followed by subsequent dedoping by ammonia solution. The morphology and thermal stability of the adsorbents were explored. In particular, the TEM method showed that the nanocomposite consisted of practically non-agglomerated nanoparticles with a “core-shell” morphology. Pa

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7

Kadolkar, Prajakta S., Shivaraj A. Patil, Manjunath N. Wari, and Sanjeev R. Inamdar. "Rotational diffusion dynamics of Alexa flour dyes in aqueous organic environment." Journal of Molecular Liquids 312 (August 2020): 113452. http://dx.doi.org/10.1016/j.molliq.2020.113452.

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8

Cano, Francisco J., Odín Reyes-Vallejo, Rocío Magdalena Sánchez-Albores, et al. "Activated Biochar from Pineapple Crown Biomass: A High-Efficiency Adsorbent for Organic Dye Removal." Sustainability 17, no. 1 (2024): 99. https://doi.org/10.3390/su17010099.

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Renowned for its versatility in environmental applications, biochar exhibits substantial potential to enhance anaerobic digestion, facilitate carbon sequestration, and improve water treatment through its highly efficient adsorption mechanisms. This study focuses on biochar derived from pineapple crown biomass, produced through slow pyrolysis, and its efficiency in removing organic dyes from contaminated water. The structural, morphological, and surface properties of both biochar and chemically activated biochar samples were comprehensively characterized using a range of techniques, including X

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9

Ong, Pin Jin, Siok Wei Tay, and Liang Hong. "Removal of water-soluble dyes by conjugated organic skeletons through drainflow-diffusion filtration." Journal of Environmental Chemical Engineering 6, no. 4 (2018): 4612–22. http://dx.doi.org/10.1016/j.jece.2018.07.011.

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10

BALAKRISHNAN, JEYAGOWRI, and YAMUNA RANGAIYA THIAGARAJAN. "CHARACTERIZATION AND POTENTIAL SUITABILITY OF SIMAROUBA GLAUCA SEED SHELL LIGNOCELLULOSIC BIOMASS AS ADSORBENT OF BASIC DYES FROM AQUEOUS SOLUTIONS." Cellulose Chemistry and Technology 55, no. 5-6 (2021): 705–22. http://dx.doi.org/10.35812/cellulosechemtechnol.2021.55.60.

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The present study investigates the potential of Simarouba glauca seed shell powder as a cost-effective adsorbent for the removal of the cationic dyes Malachite green (MG), Methylene blue (MB) and Rhodamine B (RB) from aqueous solutions. The adsorbent was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray diffraction (XRD), as well as by Brunauer–Emmett–Teller (BET) and elemental (CHNS) analyses. Batch mode adsorption studies were carried out varying the experimental conditions, such as initial dye concentration and contact time, adsorb

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11

Jin, Wen Jie, Ying Liu, Han Xue, and Fan Chao Zeng. "Research on Adsorption and Discolor of Dyes on the New Wastewater Purifying Agent Named Granulated Fly Ash." Advanced Materials Research 518-523 (May 2012): 801–6. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.801.

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The new purifying agent named granulated fly ash was used to absorb the organic dyes-ethylene blue, direct red 12B and reactive brilliant orange X-GN in solution in this paper. The effects of dosage, temperature and pH on adsorption and discolor were separately studied. In addition, the adsorption model was also analyzed. Experiment results showed that adsorption isotherm models of ethylene blue and direct red 12B on the new agent conformed to Freundlich equation, and reactive brilliant orange X-GN conformed to Langmuir equation; The adsorption kinetics models of ethylene blue, direct red 12B

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12

Dualeh, Amalie, Angelis Filippo De, Simona Fantacci та ін. "Influence of Donor Groups of Organic D−π–A Dyes on Open-Circuit Voltage in Solid-State Dye-Sensitized Solar Cells". Journal of Physical Chemistry C 116, № 1 (2011): 1572–78. https://doi.org/10.1021/jp209691e.

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In solid-state dye-sensitized solar cells (ssDSCs), the poor pore filling of the mesoporous semiconductor and the short diffusion length of charge carriers in the holetransport material (HTM) have limited the mesoscopic titania layer to a thickness of 23 μm. To increase the amount of light harvested by ssDSCs, organic dyes with high molar extinction coefficients are of great importance and have been the focus of intensive research. Here we investigate ssDSCs using an organic DπA dye, coded Y123, and 2,20,7,70-tetrakis(N,N-di-pmethoxyphenylamine)- 9,90-spirobifluorene as a hole-transport materi

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Patra, Satyajit, Kotni Santhosh, Ashok Pabbathi, and Anunay Samanta. "Diffusion of organic dyes in bovine serum albumin solution studied by fluorescence correlation spectroscopy." RSC Advances 2, no. 14 (2012): 6079. http://dx.doi.org/10.1039/c2ra20633a.

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14

Zheng, Yifan, Jingjing Wang, Yedan Wang, et al. "The Combination of MoS2/WO3 and Its Adsorption Properties of Methylene Blue at Low Temperatures." Molecules 25, no. 1 (2019): 2. http://dx.doi.org/10.3390/molecules25010002.

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It was found previously that neither monomer MoS2 nor WO3 is an ideal material for the adsorption of organic dyes, while MoS2/WO3 composites synthesized by a two-step hydrothermal method have outstanding adsorption effects. In this work, the chemical state of each element was found to be changed after combination by X-ray photoelectron spectroscopy analysis, which lead to their differences in adsorption performance. Moreover, the adsorption test of methylene blue on MoS2/WO3 composites was carried out under a series of temperatures, showing that the prepared composites also had appreciable ads

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15

Ścieżyńska, Dominika, Dominika Bury, Michał Jakubczak, Jan Bogacki, Agnieszka Jastrzębska, and Piotr Marcinowski. "Application of Micron-Sized Zero-Valent Iron (ZVI) for Decomposition of Industrial Amaranth Dyes." Materials 16, no. 4 (2023): 1523. http://dx.doi.org/10.3390/ma16041523.

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Dyes are highly toxic and persistent in the environment. Their presence in water causes environmental and social problems. Dyes must be effectively removed from the water. A UV/ZVI/H2O2 process was applied to decompose two organic dyes, AM E123 and AM ACID. A commercial ZVI product, Ferox Flow, was used, and its properties were determined using SEM and XRF. The zeta potential, surface area, and optical properties of ZVI were also determined. The efficiency of dye removal in optimal conditions was 85.5% and 80.85% for AM E123 and AM ACID, respectively. Complete decolorization was observed in al

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16

Chernomorova, Maria A., Natali S. Khrabrova, Vladimir A. Zhinzhilo, and Igor E. Uflyand. "The Use of Copper Terephthalate for the Determination and Separation of Organic Dyes via Solid-Phase Extraction with Spectrophotometric Detection." Applied Sciences 13, no. 5 (2023): 3063. http://dx.doi.org/10.3390/app13053063.

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In this work, a metal–organic framework (MOF), copper benzene dicarboxylate (Cu-MOF), was tested for the adsorptive recovery of organic dyes (Sunset Yellow FCF, Tartrazine, Orange II, and Methyl Orange) from aqueous solutions. Studies were also carried out to determine the effects of various parameters, and isothermal and kinetic models were proposed. The adsorption capacity of Cu-MOF was much higher than that of activated carbon. The experimental data are best described by the Langmuir isotherm model (R2 > 0.997) and show the ability of Cu-MOF to adsorb 435 mg/g of the dye under optimal co

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17

Kadum, Ali, Irina Burakova, Elina Mkrtchyan, et al. "Sorption kinetics of organic dyes methylene blue and malachite green on highly porous carbon material." Journal of Advanced Materials and Technologies 8, no. 2 (2023): 130–40. https://doi.org/10.17277/jamt.2023.02.pp.130-140.

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In the article, the purpose of the research was to determine the important parameters of the organic compounds sorption – synthetic dyes methylene blue (MB) and malachite green (MG), on mesoporous carbon (MPC) from aqueous solutions in a limited volume. For the sorbent used, the elemental composition and the BET surface area were determined by nitrogen adsorption, which amounted to 2360 m2⋅g–1. Absorption mechanisms were analyzed using kinetic dependences and sorption isotherms, for which empirical equations of pseudo-first and -second order, the Elovich equation and the intraparticle diffusio

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18

Zhang, Yingzhe, Yudao Chen, Juan Li, Wei Li, Ding Chen, and Qingdong Qin. "Formation of Cu2O Solid Solution via High-Frequency Electromagnetic Field-Assisted Ball Milling: The Reaction Mechanism." Materials 13, no. 3 (2020): 618. http://dx.doi.org/10.3390/ma13030618.

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The contamination of environmental water with organic pollutants poses significant challenges for society, and much effort has been directed toward the development of catalysts and methods that can decompose these pollutants. While effort has been directed toward the fabrication of Cu2O catalysts by ball milling, this technique can involve long preparation times and provide low yields. In this study, we synthesized a solid solution of Cu2O in 22 h by high-frequency electric-field-assisted ball milling below 40 °C in only one step under aqueous conditions. We investigated the catalytic activiti

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19

Sánchez-Ochoa, F., Gregorio H. Cocoletzi, and G. Canto. "Trapping and diffusion of organic dyes inside of palygorskite clay: The ancient Maya Blue pigment." Microporous and Mesoporous Materials 249 (September 2017): 111–17. http://dx.doi.org/10.1016/j.micromeso.2017.04.060.

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20

Warren, Brian C. H., and Richard E. Pattle. "Determination and correlation of diffusion coefficients of some dyes in organic solvents of high viscosity." Journal of Applied Chemistry and Biotechnology 27, no. 4 (2007): 533–38. http://dx.doi.org/10.1002/jctb.5020270406.

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21

Russo, Mattia, Kirsty E. McGhee, Tersilla Virgili, David G. Lidzey, Giulio Cerullo, and Margherita Maiuri. "Dephasing Processes in the Molecular Dye Lumogen-F Orange Characterized by Two-Dimensional Electronic Spectroscopy." Molecules 27, no. 20 (2022): 7095. http://dx.doi.org/10.3390/molecules27207095.

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Molecular dyes are finding more and more applications in photonics and quantum technologies, such as polaritonic optical microcavities, organic quantum batteries and single-photon emitters for quantum sensing and metrology. For all these applications, it is of crucial importance to characterize the dephasing mechanisms. In this work we use two-dimensional electronic spectroscopy (2DES) to study the temperature dependent dephasing processes in the prototypical organic dye Lumogen-F orange. We model the 2DES maps using the Bloch equations for a two-level system and obtain a dephasing time T2 = 5

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22

Yamamoto, Johtaro, and Akira Sasaki. "Fluorescence Correlation Spectroscopy Measurement Based on Fiber Optics for Biological Materials." Applied Sciences 11, no. 15 (2021): 6744. http://dx.doi.org/10.3390/app11156744.

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A robust fluorescence correlation spectroscopy system called fiber-optic based fluorescence correlation spectroscopy (FB-FCS) was developed; this system enables the measurement of diffusion dynamics and concentration of fluorescent molecules based on the principle of fluorescence correlation spectroscopy without any mechanical adjustment of the experimental setup. The system consisted of fiber optics and a water-immersion objective lens. The hydrodynamic diameters and concentrations of organic fluorescent dyes and fluorescently labeled proteins were successfully measured. Because of the fiber-

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23

Mac Van, Hung, and Tuan Vu Anh. "Preparation of MoS2 nano-corals by hydrothermal method for adsorption of tartrazine in the aqueous medium." Vietnam Journal of Catalysis and Adsorption 9, no. 4 (2020): 93–99. http://dx.doi.org/10.51316/jca.2020.076.

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Corals-like molybdenum disulfide (MoS2) have been successfully synthesized via the hydrothermal method. The as-prepared MoS2 material with a high surface area of 83.9 m2.g-1 was used for the removal of tartrazine from an aqueous solution. The effects of parameters including contact time, MoS2 dosage, and solution pH on adsorption capacity were studied. The optimal dosage of MoS2 for removing tartrazine was 0.08 g and the removal efficiency of tartrazine reached 81.5 % for 100 min of adsorption. The adsorption kinetics studies were carried out using pseudo-first-order, pseudo-second-order, and

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24

Ouettar, Lamia, El-Khamssa Guechi, Oualid Hamdaoui, Nadia Fertikh, Fethi Saoudi, and Abudulaziz Alghyamah. "Biosorption of Triphenyl Methane Dyes (Malachite Green and Crystal Violet) from Aqueous Media by Alfa (Stipa tenacissima L.) Leaf Powder." Molecules 28, no. 8 (2023): 3313. http://dx.doi.org/10.3390/molecules28083313.

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This study includes the characterization and exploitation of an abundant agricultural waste in Algeria, Alfa (Stipa tenacissima L.) leaf powder (ALP) as a biosorbent for the removal of hazardous triphenylmethane dyes, malachite green (basic green 4) and crystal violet (basic violet 3), from aqueous media under various operating conditions in batch mode. The effect of experimental parameters such as initial dye concentration (10–40 mg/L), contact time (0–300 min), biosorbent dose (2.5–5.5 g/L), initial pH (2–8), temperature (298–328 K), and ionic strength on dye sorption was investigated. The r

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25

Mandake, Manoj B., Santosh Walke, Makarand Naniwadikar, Ganesh Patil, and Sandhya D. Jadhav. "Experimental Investigations of the Removal of Methylene Blue from Waste Water using Agricultural Adsorbant." Int. J. of Membrane Science and Technology 10, no. 1 (2023): 1–7. http://dx.doi.org/10.15379/2410-1869.2023.10.01.01.

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Abstract: The colored organic or inorganic chemical compounds which can impart colour to other substance are the Dyes which did significant applications in the most industrial sectors like the textile industry, leather industry, paper industry, plastic, foodstuff industry etc, to impart color to their products. Due to the large volume of dye use in these businesses, a significant quantity of wastewater containing colored organics is generated. Because of insufficient dye-fiber fixation, during the dyeing process, half of the dye is lost in the wastewater. Peanut and rice husk are used to absor

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26

Ghosh, Shirsendu, Amit Kumar Mandal, Atanu Kumar Das, Tridib Mondal, and Kankan Bhattacharyya. "Diffusion of organic dyes in a niosome immobilized on a glass surface using fluorescence correlation spectroscopy." Physical Chemistry Chemical Physics 14, no. 27 (2012): 9749. http://dx.doi.org/10.1039/c2cp41212h.

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27

Chakravorty, K. K. "Ultraviolet defined selective in‐diffusion of organic dyes in polyimide for applications in optical interconnection technology." Applied Physics Letters 61, no. 10 (1992): 1163–65. http://dx.doi.org/10.1063/1.107633.

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28

ERTAN, BENGÜ. "COMPARISON OF STINGING NETTLE ADSORPTION PERFORMANCE TOWARDS ANIONIC AND CATIONIC DYES." Cellulose Chemistry and Technology 55, no. 9-10 (2021): 1131–42. http://dx.doi.org/10.35812/cellulosechemtechnol.2021.55.97.

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Stinging nettle was used as lignocellulosic adsorbent for the removal of cationic dye – malachite green (MG), and anionic dye – Congo red (CR), from aqueous solution, without any chemical pretreatment. The adsorption equilibrium data fitted well with the Langmuir model for the adsorption of both dyes, with the calculated maximum adsorption capacity of 270.27 mgg-1 and 172.14 mgg-1 for MG and CR, respectively. The adsorption process was controlled by the pseudo-second-order model in the adsorption of MG and by the pseudo-first-order model in the adsorption of CR. The thermodynamics modelling di

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Trihutomo, Prihanto, Marji Marji, Muchammad Harly, Bambang Adi Wahyudi, and Muhammad Bustomi Radja. "The effect of Clathrin protein addition on increasing the number of electrons in organic Dye-Sensitized Solar Cell (DSSC)." EUREKA: Physics and Engineering, no. 2 (March 31, 2022): 15–27. http://dx.doi.org/10.21303/2461-4262.2022.001957.

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Dye-Sensitized Solar Cell (DSSC) is a solar cell that uses dyes to convert sunlight into electricity, which has a wide absorption spectrum, is inexpensive and environmentally friendly. Visible light sensitive dyes are used in Dye-Sensitized Solar Cell (DSSC) types to generate electricity. Natural sensitive dyes that are commonly used in DSSC are chlorophyll derived from plants. Chlorophyll is a source of electrons which will be excited when exposed to light, resulting in an electric current in the DSSC. The most basic problem in Dye-Sensitized Solar Cell (DSSC) is that the number of electrons

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Trihutomo, Prihanto, Marji Marji, Muchammad Harly, Bambang Adi Wahyudi, and Muhammad Bustomi Radja. "The effect of Clathrin protein addition on increasing the number of electrons in organic Dye-Sensitized Solar Cell (DSSC)." EUREKA: Physics and Engineering, no. 2 (March 31, 2022): 15–27. https://doi.org/10.21303/2461-4262.2022.001957.

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Dye-Sensitized Solar Cell (DSSC) is a solar cell that uses dyes to convert sunlight into electricity, which has a wide absorption spectrum, is inexpensive and environmentally friendly. Visible light sensitive dyes are used in Dye-Sensitized Solar Cell (DSSC) types to generate electricity. Natural sensitive dyes that are commonly used in DSSC are chlorophyll derived from plants. Chlorophyll is a source of electrons which will be excited when exposed to light, resulting in an electric current in the DSSC. The most basic problem in Dye-Sensitized Solar Cell (DSSC) is that the number of electrons

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31

Madkour, Tarek M., Rasha E. Elsayed, and Rasha A. Azzam. "Environmentally Friendly Nanoporous Polymeric Gels for Sustainable Wastewater Treatment." Gels 10, no. 12 (2024): 756. http://dx.doi.org/10.3390/gels10120756.

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Environmentally friendly nanoporous gels are tailor-designed and employed in the adsorption of toxic organic pollutants in wastewater. To ensure the maximum adsorption of the contaminant molecules by the gels, molecular modeling techniques were used to evaluate the binding affinity between the toxic organic contaminants such as methylene blue (MB) and Congo red (CR) and various biopolymers. To generate nanopores in the matrix of the polymeric gels, salt crystals were used as porogen. The pores were then used to accommodate catalytic nickel (Ni0) nanoparticles. Under UV irradiation, the nanopar

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Heger, Richard, Natalia Zinkovska, Monika Trudicova, Martin Kadlec, Miloslav Pekar, and Jiri Smilek. "Lecithin as an Effective Modifier of the Transport Properties of Variously Crosslinked Hydrogels." Gels 9, no. 5 (2023): 367. http://dx.doi.org/10.3390/gels9050367.

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Transport properties are one of the most crucial assets of hydrogel samples, influencing their main application potential, i.e., as drug carriers. Depending on the type of drug or the application itself, it is very important to be able to control these transport properties in an appropriate manner. This study seeks to modify these properties by adding amphiphiles, specifically lecithin. Through its self-assembly, lecithin modifies the inner structure of the hydrogel, which affects its properties, especially the transport ones. In the proposed paper, these properties are studied mainly using va

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Zhang, Zhaoju, Hongyang Ma, and Benjamin S. Hsiao. "Dialdehyde Cellulose Fabric Membranes Enable Chemical Adsorption of Amino-Containing Dyes for Wastewater Treatment." Water 17, no. 2 (2025): 281. https://doi.org/10.3390/w17020281.

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Dialdehyde cellulose fabric (DACF) membranes with varying degrees of oxidation were fabricated using periodate oxidation and were employed for the chemical adsorption of amino-groups containing dyes from wastewater. The aldehyde group contents of DACF membranes were adjusted by altering oxidation time, which was confirmed by titration experiments. The chemical structure and morphology of DACF membranes were characterized using ATR-FTIR, TGA, SCA, SEM, XPS, and XRD measurements. The optimized DACF membrane, which was treated for an oxidation time of 24 h and has an aldehyde content of 2.97 mmol

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Goossens, Karel, Mira Prior, Victor Pacheco, et al. "Accurate Diffusion Coefficients of Organosoluble Reference Dyes in Organic Media Measured by Dual-Focus Fluorescence Correlation Spectroscopy." ACS Nano 9, no. 7 (2015): 7360–73. http://dx.doi.org/10.1021/acsnano.5b02371.

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35

Hori, Teruo, Noriaki Kamon, Hiroshi Kojima, Rolf M. Rohner, and Heinrich Zollinger. "Structure correlation between diffusion coefficients of simple organic compounds and of anionic and cationic dyes in water." Journal of the Society of Dyers and Colourists 103, no. 7-8 (2008): 265–70. http://dx.doi.org/10.1111/j.1478-4408.1987.tb01119.x.

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Ghosh, Subhadip, Ujjwal Mandal, Aniruddha Adhikari, and Kankan Bhattacharyya. "Study of Diffusion of Organic Dyes in a Triblock Copolymer Micelle and Gel by Fluorescence Correlation Spectroscopy." Chemistry - An Asian Journal 4, no. 6 (2009): 948–54. http://dx.doi.org/10.1002/asia.200800377.

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37

Mandake, Manoj B., Santosh Walke, Makarand Naniwadikar, Ganesh Patil, and Sandhya D. Jadhav. "Experimental Investigations of the Removal of Methylene Blue from Waste Water using Agricultural Adsorbant." International Journal of Membrane Science and Technology 10, no. 1 (2023): 1–7. http://dx.doi.org/10.15379/ijmst.v10i1.1069.

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Abstract: The colored organic or inorganic chemical compounds which can impart colour to other substance are the Dyes which did significant applications in the most industrial sectors like the textile industry, leather industry, paper industry, plastic, foodstuff industry etc, to impart color to their products. Due to the large volume of dye use in these businesses, a significant quantity of wastewater containing colored organics is generated. Because of insufficient dye-fiber fixation, during the dyeing process, half of the dye is lost in the wastewater. Peanut and rice husk are used to absor

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38

Shubin, Igor, and Oksana Ananyeva. "A study of adsorption characteristics of activated carbon material for typical organic and inorganic pollutants." Journal of Advanced Materials and Technologies 9, no. 2 (2024): 122–31. https://doi.org/10.17277/jamt.2024.02.pp.122-131.

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The paper presents the results of adsorption studies on the developed activated carbon material (AM), obtained by two activation methods – with one (AM1) and two activators (AM2), respectively, as well as its compacted versions (AMK) using polyvinyl alcohol (PVА), polyvinyl acetate (PVAС) and basalt fiber (BF) as binders, with regard to typical pollutants of aquatic environments – organic dyes and heavy metals. The carbon materials sorption capacity was assessed by the ability to remove dye molecules – “methylene blue” (MB) and “sunset yellow” (SY) using spectrophotometric analysis, as well as

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Zhao, Xiaohui, Yutong Liu, Yue Cao, et al. "Near-Infrared Reflective Polymer Films Based on UV-327-Doped Zinc Oxide Nanoparticles." Materials 16, no. 24 (2023): 7660. http://dx.doi.org/10.3390/ma16247660.

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We prepared cholesteric liquid crystal (CLC) films with broadband reflective properties by admixing organic dye UV-327 into inorganic zinc oxide nanoparticles (ZnO NPs), utilizing the principle of pitch distribution from a large to a small gradient along the film thickness direction, leading to broadband reflection. ZnO NPs are poorly dispersed and easy to gather, but they do not decompose easily. The addition of UV-327 makes up for the above shortcomings. UV-327 is an organic compound with good compatibility and dispersion with liquid crystal systems. Therefore, we used the method of mixing t

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Heide, Angela, Philip Wiebe, Lilia Sabantina, and Andrea Ehrmann. "Suitability of Mycelium-Reinforced Nanofiber Mats for Filtration of Different Dyes." Polymers 15, no. 19 (2023): 3951. http://dx.doi.org/10.3390/polym15193951.

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Electrospun nanofiber mats have a high specific surface area and very small pores which can be tailored by the spinning process. They are thus highly suitable as filters for small particles and molecules, such as organic dyes. On the other hand, they are usually very thin and thus have low mechanical properties. As a potential reinforcement, mycelium of Pleurotus ostreatus was grown on poly(acrylonitrile) nanofiber mats and thermally solidified after fully covering the nanofiber mats. This study investigates whether the filtration efficiency of the nanofiber mats is altered by the mycelium gro

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Cibulic, Violeta, Lidija Stamenkovic, Nebojsa Veljkovic, and Novica Staletovic. "Dynamics of the process of colour adsorption from waste waters after dyeing textile fibres on natural zeolites." Chemical Industry 67, no. 1 (2013): 41–49. http://dx.doi.org/10.2298/hemind120209049c.

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This study analyses the process of purifying waste waters from textile fibre dyeing by adsorption of colour on natural zeolites from ?Nemetali? mine, Vranjska Banja, Serbia. The process has been analyzed in an adsorption column filled with natural zeolite as the adsorbent. Adsorbents are organic substances, i.e. colour residues from waste waters, left after textile fibres dyeing. The concentration change in waste waters is represented with the parameter of chemical oxygen demand (COD). Two models of diffusion have been considered: diffusion in pores and diffusion in adsorbent phase on solid ad

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Saliba, Daniel, and Mazen Al-Ghoul. "Kinetics of intercalation of fluorescent probes in magnesium–aluminium layered double hydroxide within a multiscale reaction–diffusion framework." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374, no. 2080 (2016): 20160138. http://dx.doi.org/10.1098/rsta.2016.0138.

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We report the synthesis of magnesium–aluminium layered double hydroxide (LDH) using a reaction–diffusion framework (RDF) that exploits the multiscale coupling of molecular diffusion with chemical reactions, nucleation and growth of crystals. In an RDF, the hydroxide anions are allowed to diffuse into an organic gel matrix containing the salt mixture needed for the precipitation of the LDH. The chemical structure and composition of the synthesized magnesium–aluminium LDHs are determined using powder X-ray diffraction (PXRD), thermo-gravimetric analysis, differential scanning calorimetry, solid-

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Mkrtchyan, E. S., E. A. Neskoromnaya, I. V. Burakova, et al. "Comparative Analysis of the Adsorption Kinetics of the Methylene Blue Dye on Graphene Aerogel and Activated Coconut Carbon." Advanced Materials & Technologies, no. 4(20) (2020): 021–28. http://dx.doi.org/10.17277/amt.2020.04.pp.021-028.

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The comparative adsorption capacity of graphene aerogel and activated coconut carbon in the process of removing the main cationic synthetic dye, methylene blue (MB), from aqueous solutions with an initial concentration of 150 mg/l was investigated. The characteristics of the new material have been determined using scanning electron microscopy, thermogravimetry, and Raman spectroscopy. The values of the adsorption capacity of graphene aerogel – 420 mg/g and activated carbon – 205 mg/g were established. The saturation time in the presence of graphene aerogel was 7 min. The experimental data were

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Sasmal, Dibyendu Kumar, Amit Kumar Mandal, Tridib Mondal, and Kankan Bhattacharyya. "Diffusion of Organic Dyes in Ionic Liquid and Giant Micron Sized Ionic Liquid Mixed Micelle: Fluorescence Correlation Spectroscopy." Journal of Physical Chemistry B 115, no. 24 (2011): 7781–87. http://dx.doi.org/10.1021/jp202090x.

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Timirgaliev, Alexey, Irina Burakova, Sofya Rybakova, et al. "Removal of organic dyes from aqueous solutions using a graphene-containing sorbent based on activated rapeseed biochar: kinetics and isotherms." Journal of Advanced Materials and Technologies 9, no. 3 (2024): 177–87. https://doi.org/10.17277/jamt.2024.03.pp.177-187.

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The paper deals with the development of a graphene-containing sorbent material based on activated rapeseed biochar. The physicochemical properties of the sorbent and features of its morphological structure were determined. The nanocomposite was found to have amorphous properties with a graphene-like structure. The morphological analysis confirmed the formation of internal carbon framework and external three-dimensional multilayer graphene structure, which is excellent for mass transfer between pollutants and adsorbent surface. The research also aimed to determine the important parameters of so

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Byers, Gary W. "Diffusion of dyes in polycarbonate. A new measurement technique and correlation with shadow areas." Macromolecules 26, no. 16 (1993): 4242–48. http://dx.doi.org/10.1021/ma00068a026.

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Pronkin, Pavel G., and Alexander S. Tatikolov. "Photonics of Some Monomethine Cyanine Dyes in Solutions and in Complexes with Biomolecules." International Journal of Molecular Sciences 24, no. 18 (2023): 13954. http://dx.doi.org/10.3390/ijms241813954.

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In search of new probes for biomolecules, the spectral fluorescent study of four monomethine cyanine dyes (MCD), both unsymmetrical and symmetrical, has been carried out in different organic solvents, in aqueous buffer solutions, and in the presence of DNA and HSA. The complexation of MCD with biomacromolecules leads to a steep growth of the fluorescence intensity. Complexes of MCD with dsDNA and HSA of various types were modeled in silico by molecular docking. Experiments on thermal dissociation of dsDNA in the presence of MCD showed the formation of intercalative complexes of MCD with DNA. Q

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Rajeshkumar, S., M. Vanaja, and Arunachalam Kalirajan. "Degradation of Toxic Dye Using Phytomediated Copper Nanoparticles and Its Free-Radical Scavenging Potential and Antimicrobial Activity against Environmental Pathogens." Bioinorganic Chemistry and Applications 2021 (December 3, 2021): 1–10. http://dx.doi.org/10.1155/2021/1222908.

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The present investigation deals with the green synthesis of copper nanoparticles in an ecofriendly manner using leaf extract of Andrographis paniculata. Green-synthesized copper nanoparticles were studied for their antibacterial, antioxidant, and catalytic activity. The leaves were powdered and extracted with water and added to copper sulphate solution. The reduction of copper ions to nanoparticles was preliminarily identified by the color change of the reaction mixture. The synthesized nanoparticle was characterized by using a UV-Vis Spectrophotometer at a different wavelength with different

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Choy, KKH, JF Porter, and G. McKay. "Film-surface diffusion during the adsorption of acid dyes onto activated carbon." Journal of Chemical Technology & Biotechnology 79, no. 11 (2004): 1181–88. http://dx.doi.org/10.1002/jctb.1101.

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Pronkin, Pavel G., and Alexander S. Tatikolov. "Photonics of Trimethine Cyanine Dyes as Probes for Biomolecules." Molecules 27, no. 19 (2022): 6367. http://dx.doi.org/10.3390/molecules27196367.

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Cyanine dyes are widely used as fluorescent probes in biophysics and medical biochemistry due to their unique photophysical and photochemical properties (their photonics). This review is focused on a subclass of the most widespread and studied cyanine dyes—trimethine cyanines, which can serve as potential probes for biomolecules. The works devoted to the study of the noncovalent interaction of trimethine cyanine dyes with biomolecules and changing the properties of these dyes upon the interaction are reviewed. In addition to the spectral-fluorescent properties, elementary photochemical propert

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