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Journal articles on the topic 'Environmentally friendly oxidizers'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Paravan, Christian, Anwer Hashish, and Valerio Santolini. "Test Activities on Hybrid Rocket Engines: Combustion Analyses and Green Storable Oxidizers—A Short Review." Aerospace 10, no. 7 (2023): 572. http://dx.doi.org/10.3390/aerospace10070572.

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Hybrid rocket engines (HREs) offer a low-cost, reliable, and environmentally friendly solution for both launch and in-space applications. Hybrid propellants have been identified as green thanks to their use of non-toxic, non-carcinogenic oxidizers. Of particular relevance are storable oxidizers, namely high-concentration (≥90 wt.%) hydrogen peroxide (HP, H2O2) and nitrous oxide (N2O). This work provides a survey of experimental activities based on H2O2 and N2O for hybrid rocket propulsion applications. Open literature data are completed with original thermochemical calculations to support the

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Olena, Kositsyna, Varlan Kostiantyn, Dron Mykola, and Kulyk Oleksii. "Determining energetic characteristics and selecting environmentally friendly components for solid rocket propellants at the early stages of design." Eastern-European Journal of Enterprise Technologies 6, no. 6 (114) (2021): 6–14. https://doi.org/10.15587/1729-4061.2021.247233.

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This paper has investigated the possibility to theoretically calculate a value of the specific impulse for highly energetic compositions using only two parameters – the heat of the reaction and the number of moles of gaseous decomposition reaction products. Specific impulse is one of the most important energetic characteristics of rocket propellant. It demonstrates the level of achieving the value of engine thrust and propellant utilization efficiency. Determining the specific impulse experimentally is a complex task that requires meeting special conditions. For the stage of synthesis of

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3

Gańczyk-Specjalska, Katarzyna, Paulina Paziewska, Rafał Bogusz, Rafał Lewczuk, Katarzyna Cieślak, and Michał Uszyński. "Performance and Sensitivity Properties of Solid Heterogeneous Rocket Propellant Based on a Binary System of Oxidizers (PSAN and AP)." Processes 9, no. 12 (2021): 2201. http://dx.doi.org/10.3390/pr9122201.

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Solid heterogeneous rocket propellants (SHRP) containing ammonium perchlorate (AP) emit a lot of hydrogen chloride (HCl) during combustion, which poses various environmental issues and makes the detection of the rockets easier. Part of the AP can be replaced by ammonium nitrate (V) (AN), which does not lead to the production of HCl. AN is a commonly used environmentally friendly oxidizer, but it is not usually applied in SHRP due to its disadvantages. One of these disadvantages is a phase transition near room temperature, which causes the density change of AN. Three types of phase stabilized a

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4

Zhang, Xueli, and Xuedong Gong. "A computational study on new oxidizers as replacements for ammonium perchlorate: tetranitroacetimidic acid and tetranitroacetamide." Canadian Journal of Chemistry 95, no. 2 (2017): 199–206. http://dx.doi.org/10.1139/cjc-2016-0468.

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High energetic materials tetranitroacetimidic acid (TNAA) and tetranitroacetamide (NTNAA) with positive oxygen balance (OB = 30%) are highly potential replacements for ammonium perchlorate (AP). Tautomerization from TNAA to NTNAA is feasible, reflected by the activation energy of 160.2∼170.0 kJ/mol. No transition state appears on the C–NO2 bond breaking, which triggers pyrolysis of two compounds. The C–NO2 bond dissociation energies are 116.1∼167.2 kJ/mol and 120.4∼174.6 kJ/mol for TNAA and NTNAA, respectively. The chemical stabilities of TNAA and NTNAA are higher than that of the insensitive

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Kositsyna, Olena, Kostiantyn Varlan, Mykola Dron, and Oleksii Kulyk. "Determining energetic characteristics and selecting environmentally friendly components for solid rocket propellants at the early stages of design." Eastern-European Journal of Enterprise Technologies 6, no. 6 (114) (2021): 6–14. http://dx.doi.org/10.15587/1729-4061.2021.247233.

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This paper has investigated the possibility to theoretically calculate a value of the specific impulse for highly energetic compositions using only two parameters – the heat of the reaction and the number of moles of gaseous decomposition reaction products. Specific impulse is one of the most important energetic characteristics of rocket propellant. It demonstrates the level of achieving the value of engine thrust and propellant utilization efficiency. Determining the specific impulse experimentally is a complex task that requires meeting special conditions. For the stage of synthesis of new p

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6

Zarraonaindia, Iratxe, Xabier Simón Martínez-Goñi, Olaia Liñero, et al. "Response of Horticultural Soil Microbiota to Different Fertilization Practices." Plants 9, no. 11 (2020): 1501. http://dx.doi.org/10.3390/plants9111501.

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Environmentally friendly agricultural production necessitates manipulation of microbe–plant interactions, requiring a better understanding of how farming practices influence soil microbiota. We studied the effect of conventional and organic treatment on soil bacterial richness, composition, and predicted functional potential. 16S rRNA sequencing was applied to soils from adjacent plots receiving either a synthetic or organic fertilizer, where two crops were grown within treatment, homogenizing for differences in soil properties, crop, and climate. Conventional fertilizer was associated with a

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7

Gichovi, Juster, Hoang Thi Thuy Tran, JIhoon Seo, and Elizabeth J. Podlaha. "Examining Leucine As an Environmentally Friendly Corrosion Inhibitor for Cu and Co Chemical-Mechanical Planarization (CMP)." ECS Meeting Abstracts MA2023-01, no. 55 (2023): 2689. http://dx.doi.org/10.1149/ma2023-01552689mtgabs.

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Metal chemical-mechanical planarization (CMP) is a key step in semiconductor processing of microchips and devices. The slurries used in CMP contain abrasives, oxidizers, chelating agents, and corrosion inhibitors. Despite the desired removal of metal, corrosion inhibitors are used to protect the underlying metal features from aggressive corrosion, and to this end, azoles, such as benzotriazole (BTA), are the most commonly used corrosion inhibitor in Cu CMP,1-3 and Co CMP4-5 slurries, although it was recently found that the surface interaction between BTA and Co is weaker than BTA and Cu.6 When

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8

Berdugo-Clavijo, Carolina, Gabrielle Scheffer, Arindom Sen, and Lisa M. Gieg. "Biodegradation of Polymers Used in Oil and Gas Operations: Towards Enzyme Biotechnology Development and Field Application." Polymers 14, no. 9 (2022): 1871. http://dx.doi.org/10.3390/polym14091871.

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Linear and crosslinked polymers are commonly used in the oil and gas industry. Guar-derived polymers have been extensively utilized in hydraulic fracturing processes, and recently polyacrylamide and cellulose-based polymers have also found utility. As these polymers are used during various phases of the hydraulic fracturing process, they can accumulate at formation fracture faces, resulting in undesired filter cakes that impede oil and gas recovery. Although acids and chemical oxidizers are often added in the fracturing fluids to degrade or ‘break’ polymer filter cakes, the constant use of the

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9

Ochirkhuyag, Altantuya, Ulambayar Rentsennorov, Davaabal Batmunkh, et al. "Preparation of catalyst from natural montmorillonite mineral and its application in the synthesis of carbon nanosphere." Mongolian Journal of Chemistry 23, no. 49 (2022): 32–37. http://dx.doi.org/10.5564/mjc.v23i49.2430.

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In developed countries, nanoparticles derived from natural minerals and high-purity chemicals both are widely studied, while in developing countries like Mongolia, the natural minerals-based nanoparticles have more interest because of the low production cost and applicability of domestic natural minerals for their production. For the synthesis of natural mineral-based nanomaterials, it is important first to define the chemical composition and physical structure of local minerals and their possible processing route. We employed an environmentally friendly alkaline leaching procedure to recover

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Pakostova, Eva, and Anuradha Herath. "A Bioleaching Process for Sustainable Recycling of Complex Structures with Multi-Metal Layers." Sustainability 15, no. 19 (2023): 14068. http://dx.doi.org/10.3390/su151914068.

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Industrial waste is accumulating, while primary metal resources are depleting. Bioleaching has been shown to be a cost-effective and environmentally friendly approach to metal recovery from waste, but improved designs are needed for large-scale recycling. Metal components that are manufactured by electrodeposition over a mandrel can be difficult to recycle using conventional techniques due to their complex geometry and inner Ag coating. A sustainable biotechnology for separating Cu and Ag from waste electrodeposited components is presented. Two-step bioleaching experiments were performed, duri

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11

Zeng, Xian-Chun, Guoji E, Jianing Wang, et al. "Functions and Unique Diversity of Genes and Microorganisms Involved in Arsenite Oxidation from the Tailings of a Realgar Mine." Applied and Environmental Microbiology 82, no. 24 (2016): 7019–29. http://dx.doi.org/10.1128/aem.02190-16.

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ABSTRACTThe tailings of the Shimen realgar mine have unique geochemical features. Arsenite oxidation is one of the major biogeochemical processes that occurs in the tailings. However, little is known about the functional and molecular aspects of the microbial community involved in arsenite oxidation. Here, we fully explored the functional and molecular features of the microbial communities from the tailings of the Shimen realgar mine. We collected six samples of tailings from sites A, B, C, D, E, and F. Microcosm assays indicated that all of the six sites contain both chemoautotrophic and hete

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Andrés, Celia María Curieses, José Manuel Pérez de la Lastra, Celia Andrés Juan, Francisco J. Plou, and Eduardo Pérez-Lebeña. "Chlorine Dioxide: Friend or Foe for Cell Biomolecules?A Chemical Approach." International Journal of Molecular Sciences 23, no. 24 (2022): 15660. http://dx.doi.org/10.3390/ijms232415660.

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This review examines the role of chlorine dioxide (ClO2) on inorganic compounds and cell biomolecules. As a disinfectant also present in drinking water, ClO2 helps to destroy bacteria, viruses, and some parasites. The Environmental Protection Agency EPA regulates the maximum concentration of chlorine dioxide in drinking water to be no more than 0.8 ppm. In any case, human consumption must be strictly regulated since, given its highly reactive nature, it can react with and oxidize many of the inorganic compounds found in natural waters. Simultaneously, chlorine dioxide reacts with natural organ

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Plahuta, Joseph M., Amy L. Teel, Mushtaque Ahmad, Mark W. Beutel, Jeremy A. Rentz, and Richard J. Watts. "Oxidized Starch Solutions for Environmentally Friendly Aircraft Deicers." Water Environment Research 83, no. 9 (2011): 826–33. http://dx.doi.org/10.2175/106143011x12928814445050.

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14

Ashraf, Ahmed, Ahmed Fahd, Hosam E. Mostafa, E. M. Yossef, and Sherif Elbasuney. "The potentials of copper chromite nanoparticles on ammonium nitrate decomposition: Towards eco-friendly oxidizers for green solid propellants." Journal of Physics: Conference Series 2830, no. 1 (2024): 012013. http://dx.doi.org/10.1088/1742-6596/2830/1/012013.

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Abstract Ammonium perchlorate (AP) is the universal oxidizer for solid propellants; AP combustion is accompanied with the release of white smoke (HCl). HCl has raised an environmental concern; it could cause acidic rain and deteriorate the fertile soil. Chlorine free and eco-friendly oxidizers are highly appreciated for green solid propellants. Ammonium nitrate (AN) could be the greener substitute for AP; yet AN expose low performance. Whereas AP demonstrated exothermic decomposition with the release of -733 J/g; AN demonstrated strong endothermic decomposition process of +1707 J/g. AN with st

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15

Haske-Cornelius, Oskar, Simone Weinberger, Felice Quartinello, et al. "Environmentally friendly covalent coupling of proteins onto oxidized cellulosic materials." New Journal of Chemistry 43, no. 36 (2019): 14536–45. http://dx.doi.org/10.1039/c9nj03077h.

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Cellulose is a biodegradable and renewable material that is one of the most abundant biopolymers with many different applications from low value newsprint products to high value biomedical sensor devices.

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Knyazeva, Larisa, Nikolay Kur`yato, Andrey Dorokhov, and Viktoriya Bryksina. "ENVIRONMENTALLY FRIENDLY PRODUCTS FOR CORROSION PROTECTION." SCIENCE IN THE CENTRAL RUSSIA, no. 3 (June 30, 2023): 131–42. http://dx.doi.org/10.35887/2305-2538-2023-3-131-142.

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The use of cheap, environmentally friendly natural products is especially important for the anti-corrosion protection of agricultural machinery and equipment. The studies were carried out on samples of carbon steel St3.Coatings from sunflower and rapeseed oils and their sediments; birch tar and its emulsion prepared with a homogenizer; decoctions of bifungin, black and green tea, coffee, oak bark, potato and beet peels, orange and banana peel, bay leaf, onion peel, field honey, sugar, currant berries, dried garlic, tobacco, black and red pepper, seasonings hops-suneli, celandine were studied.

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Nagamachi, Márcio Y., José Irineu S. Oliveira, Aparecida M. Kawamoto, and Rita de Cássia L. Dutra. "ADN - The new oxidizer around the corner for an environmentally friendly smokeless propellant." Journal of Aerospace Technology and Management 1, no. 2 (2009): 153–60. http://dx.doi.org/10.5028/jatm.2009.0102153160.

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Zuber, V. I., V. R. Nigmatullin, R. G. Nigmatullin, and D. A. Perkhutkin. "Development of technology for producing base oil and environmentally friendly petroleum plasticizer." World of Oil products the Oil Companies Bulletin 03 (2021): 26–30. http://dx.doi.org/10.32758/2071-5951-2021-0-3-26-30.

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The article relates to the field of chemical technology and can be used in oil refining. The article reveals a method for producing base oils with a low sulfur content, environmentally friendly aromatic fillers and plasticizers of rubber and rubber, including selective purification of oil fractions of oil with a selective solvent, separation of the extract and raffinate solutions of the first stage, while the extract solution of the first stage is cooled, followed by separation in the settling tank of the pseudo-raffinate solution of the first stage, a raffinate solution of the first stage aft

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Ptaszek, Anna, Marcin Lukasiewicz, and Szczepan Bednarz. "Environmental friendly polysaccharide modification - rheological properties of oxidized starches water systems." Starch - Stärke 65, no. 1-2 (2012): 134–45. http://dx.doi.org/10.1002/star.201200032.

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20

Díez-Pascual, Ana María, Carlos Sainz-Urruela, Cristina Vallés, Soledad Vera-López, and María Paz San Andrés. "Tailorable Synthesis of Highly Oxidized Graphene Oxides via an Environmentally-Friendly Electrochemical Process." Nanomaterials 10, no. 2 (2020): 239. http://dx.doi.org/10.3390/nano10020239.

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Graphene oxide (GO) is an attractive alternative to graphene for many applications due to its captivating optical, chemical, and electrical characteristics. In this work, GO powders with a different amount of surface groups were synthesized from graphite via an electrochemical two-stage process. Many synthesis conditions were tried to maximize the oxidation level, and comprehensive characterization of the resulting samples was carried out via elemental analysis, microscopies (TEM, SEM, AFM), X-ray diffraction, FT-IR and Raman spectroscopies as well as electrical resistance measurements. SEM an

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Tavakolizadeh, Maryam, Ali Pourjavadi, Maryam Ansari, et al. "An environmentally friendly wound dressing based on a self-healing, extensible and compressible antibacterial hydrogel." Green Chemistry 23, no. 3 (2021): 1312–29. http://dx.doi.org/10.1039/d0gc02719g.

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A self-healing wound dressing hydrogel is prepared through Schiff-base cross-linking between oxidized salep (OSa) and ethylene diamine-modified salep (SaHEA) as first network and physical cross-linking of PVA via freezing-thawing as the second network.

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Liu, Guoliang, Dan Tian, Bangze Zhou, et al. "Green degumming process of ramie fiber thermal effect and optimization." Thermal Science 23, no. 4 (2019): 2447–51. http://dx.doi.org/10.2298/tsci1904447l.

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Ramie is a kind of natural fibers, it requires degumming process before it can be used as a raw material for various applications. The traditional treatment uses alkali, which is not an environmentally friendly process. In this paper, ramie fibers are degummed using sodium percarbonate, which causes no any negative environmental problems, and its decomposition, hydrogen peroxide, is a clear liquid, it can be used as an oxidizer, bleaching agent and antiseptics for surface treatment of ramie fibers. Effect of temperature and concentration of sodium percarbonate on the degumming process are stud

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Rajalakshmi, Natarajan. "Making Fuel Cells Work- Challenges." ECS Meeting Abstracts MA2018-01, no. 32 (2018): 1970. http://dx.doi.org/10.1149/ma2018-01/32/1970.

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Fuel cells are remarkable in their potential for efficiently converting the energy locked up in chemical bonds to electrical energy in a single step, extracting more useful energy from the same amount of fuel than any other known device. Though for more than five decades, they have been heralded for their potential as a cost efficient, environmentally friendly means to convert, this has not been realized so far to its full potential. Fuel cell operations are complex and the state of affairs is partly due to the fact that it is easy to make a single working fuel cell in the lab, but building fu

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Sharma, Virender K., Futaba Kazama, Hu Jiangyong, and Ajay K. Ray. "Ferrates (iron(VI) and iron(V)): Environmentally friendly oxidants and disinfectants." Journal of Water and Health 3, no. 1 (2005): 45–58. http://dx.doi.org/10.2166/wh.2005.0005.

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Iron(VI) and iron(V), known as ferrates, are powerful oxidants and their reactions with pollutants are typically fast with the formation of non-toxic by-products. Oxidations performed by Fe(VI) and Fe(V) show pH dependence; faster rates are observed at lower pH. Fe(VI) shows excellent disinfectant properties and can inactivate a wide variety of microorganisms at low Fe(VI) doses. Fe(VI) also possesses efficient coagulation properties and enhanced coagulation can also be achieved using Fe(VI) as a preoxidant. The reactivity of Fe(V) with pollutants is approximately 3–5 orders of magnitude faste

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Böhmer, Carola H., Mareen N. Warncke, Philippa Ruth Christine Böhnke, et al. "Environmentally Friendly Protective Coating for Electrically Conductive Yarns Using in Smart Textiles." Key Engineering Materials 977 (March 22, 2024): 35–42. http://dx.doi.org/10.4028/p-ah5mgx.

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Current research focuses on advancements and breakthroughs in the realm of smart textiles, with applications spanning various industries such as medicine and education. For producing flexible smart textiles, electrically conductive yarns (EC) are needed to transmit signals or as part of sensor systems. Mostly, these EC consist of a polymer core with an outer metallized layer. Using EC in contact with skin requires high reliability and safety, and thus, the EC must maintain their functional properties on a long-term scale under a range of different stresses. The electrical properties of EC dete

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Jimenez-Aleman, Guillermo H., Selina Seçinti та Wilhelm Boland. "A succinct access to ω-hydroxylated jasmonates via olefin metathesis". Zeitschrift für Naturforschung C 72, № 7-8 (2017): 285–92. http://dx.doi.org/10.1515/znc-2017-0104.

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AbstractIn higher plants, jasmonates are lipid-derived signaling molecules that control many physiological processes, including responses to abiotic stress, defenses against insects and pathogens, and development. Among jasmonates, ω-oxidized compounds form an important subfamily. The biological roles of these ω-modified derivatives are not fully understood, largely due to their limited availability. Herein, a brief (two-step), simple and efficient (>80% yield), versatile, gram-scalable, and environmentally friendly synthetic route to ω-oxidized jasmonates is described. The approach utilize

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Liu, Zhengyu, Jue Kou, Lipeng Fan, et al. "Research on Enhancing Copper-Ammonia-Thiosulfate Eco-Friendly Gold Leaching by Magnetization of Lixiviant Solution and Their Kinetic Mechanism." Minerals 14, no. 7 (2024): 697. http://dx.doi.org/10.3390/min14070697.

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In thiosulfate leaching of gold, the copper-ammonia complex serves as an oxidant and catalyst. This study examined the impact of magnetizing the copper-ammonia thiosulphate lixiviant solution on gold leaching from refractory oxidized ores. Magnetization reduced surface tension, improved wettability and infiltration, and enhanced the diffusion of leaching agents. It also increased dissolved oxygen content and boosted the catalytic efficiency of copper-ammonia complexes. These changes led to more efficient gold extraction, with column leaching showing a 4.74% improvement in extraction rates comp

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Feng, Feng, Jiamei Liu, Mingxing Zhao, et al. "Study of an Environmentally Friendly Method for the Dissolution of Precious Metal with Ionic Liquid and Iodoalkane." Metals 11, no. 6 (2021): 919. http://dx.doi.org/10.3390/met11060919.

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Gold as a precious metal resource has high recycling significance. However, the current extraction methods cannot achieve the both efficiency and environmental friendliness. In this paper, we propose a new gold leaching agent, which can leach gold under light condition by mixing iodoform (CHI3) with 1-butyl-3-methylimidazolium dicyanamide (BmimN(CN)2) ionic liquid. Under 25 °C and 13 W incandescent lamp irradiation, the leaching yield of gold can achieve 100 wt%, and the average leaching rate is 945 mg Au/(h·mol·CHI3) (18.9 times of that of the cyanidation method). Through the analysis of the

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Bui, Phuong Dong, Thanh Huy Nguyen, Bui Anh Duy Nguyen, Phuoc Thiep Chau, and Chi Thanh Nguyen. "Environmentally Friendly Cassava Starch-Based Hydrogel as Absorbent with Slow Release of Fertilizer." Journal of Technical Education Science 20, no. 02 (2025): 46–57. https://doi.org/10.54644/jte.2025.1618.

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The environmentally friendly cassava starch-based hydrogel with controlled slow release of fertilizer replacing for fossil-based hydrogels was prepared successfully by oxidation of cassava starch using a simple reaction. The physiochemical properties of obtained hydrogel were evaluated by some reliable analytical techniques such as: X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscope (SEM), swelling ability in distilled water and various salt solutions. The XRD results showed the specific diffraction peaks corr

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Shapovalov, Yuriy, Rustam Tokpayev, Tamina Khavaza, and Mikhail Nauryzbayev. "Generation of Hydrogen and Oxygen from Water by Solar Energy Conversion." Sustainability 13, no. 24 (2021): 13941. http://dx.doi.org/10.3390/su132413941.

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Photosynthesis is considered to be one of the promising areas of cheap and environmentally friendly energy. Photosynthesis involves the process of water oxidation with the formation of molecular oxygen and hydrogen as byproducts. The aim of the present article is to review the energy (light) phase of photosynthesis based on the published X-ray studies of photosystems I and II (PS-I and PS-II). Using modern ideas about semiconductors and biological semiconductor structures, the mechanisms of H+, O2↑, e− generation from water are described. At the initial stage, PS II produces hydrogen peroxide

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Lin, Feng, Yun Yang, Zhen Zhang, Nanfang Tang, and Guangqi Zhu. "A Titania-Supported Polyoxometalate and Au Cocatalyst for Efficient Photocatalytic Environmental Remediation." Catalysts 11, no. 9 (2021): 1045. http://dx.doi.org/10.3390/catal11091045.

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Photocatalysis has been considered an effective method for environmental purification and pollutant removal, with many experiments having being performed. The sustainable development of environmentally friendly materials that can photocatalytically oxidize and degrade contaminants is widely studied. Here, we report the results of the photocatalytic oxidation of contaminants (over 99% conversion of the contaminants was achieved) on a tri-component photocatalyst by the simultaneous decoration of Au nanoparticles and a new type of Sn-substituted Keggin structure polyoxometalate (POM) on a TiO2 se

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KAKAR, ROZINA, AMIRUL-AL-ASHRAF ABDULLAH, MOHD RASHID, RABIA TASADUQ HUSSAIN, AMIRA SURIATY YAAKOP, and SHOWKAT AHMAD BHAWANI. "Bioremediation of Pollutants and Sustainable Energy Production through Bacterial Activities in Microbial Fuel Cells: An Overview." Asian Journal of Chemistry 33, no. 2 (2021): 253–65. http://dx.doi.org/10.14233/ajchem.2021.23081.

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Electrical energy generation can be achieved in microbial fuel cells (MFCs) through the catalytic action of microorganisms which can oxidize organic matter and convert it into a biofilm. In MFCs, the exoelectrogens play a crucial role. MFCs is eco-friendly promising technology that produces electricity from various organic substrates. It is a novel and environmentally friendly approach for bioremediation and sustainable electricity production. The fact that heavy metals contributing adversely to the environmental pollution thus the microbial fuel cell technology has a solution for this as well

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Zupančič, Matevž, Peter Gregorčič, and Iztok Golobič. "Pool boiling performance of laser-textured surfaces with time-dependent wettability." Journal of Physics: Conference Series 2116, no. 1 (2021): 012004. http://dx.doi.org/10.1088/1742-6596/2116/1/012004.

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Abstract In last years, the direct laser texturing proved as environmentally friendly, scalable, flexible and efficient approach for surface functionalisation by creating appropriate surface features for enhanced boiling performance. When metal surface is laser-processed in open (oxygen-containing) atmosphere, it oxidizes and becomes (super)hydrophilic. However, it is well known that the wettability transition towards (super)hydrophobic state occur, if such a surface is exposed to the presence of hydrophobic contaminants. When water is used as a working fluid, this wettability transition can h

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Guan, Xiaofei, Uday B. Pal, and Adam C. Powell. "An Environmentally Friendly Process Involving Refining and Membrane-Based Electrolysis for Magnesium Recovery from Partially Oxidized Scrap Alloy." JOM 65, no. 10 (2013): 1285–92. http://dx.doi.org/10.1007/s11837-013-0659-3.

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Satmalawati, E. M., Y. Pranoto, D. W. Marseno, and Y. Marsono. "Oxidation of cassava starch at different dissolved ozone concentration: effect on functional and structural properties." Food Research 4, no. 6 (2020): 1896–19094. http://dx.doi.org/10.26656/fr.2017.34(6).209.

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An environmentally friendly method for starch oxidation is recommended in order to replace harmful oxidizing chemical reagents. Ozone is an environmentally friendly oxidizing reagent that leaves no residue in the final product. Studies of starch modification using dissolved ozone are still lacking. This work aimed to increase the use value and improve native starch characteristics by evaluating carbonyl and carboxyl contents, pasting and functional properties, spectral Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) profiles, particle sizes, and scanning electron mic

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Platero, Justin, Thiagarajan Soundappan, Khaled Abdelazim, et al. "Design and Fabrication of Flexible Paper-Based, Electrochemical Sensors to Detect the Presence of Heavy Metals in Ground Water." ECS Meeting Abstracts MA2022-02, no. 64 (2022): 2406. http://dx.doi.org/10.1149/ma2022-02642406mtgabs.

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The history of mining and mineral extraction across the Navajo Nation has resulted in considerable contamination of the land and the groundwater resources, which is a significant environmental concern. Through a partnership between Navajo Technical University and Harvard University, we have designed and fabricated flexible, paper-based sensors in tandem with electrochemical techniques such as cyclic voltammetry, differential pulse voltammetry, and anodic stripping voltammetry to determine heavy metal concentrations in test samples. We have selected to fabricate paper-based electrochemical sens

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Liu, Shuai, Zheng Liu, and Xiu E. Bai. "Comparative Analysis of Fibers for Thermal Protective Clothing." Advanced Materials Research 627 (December 2012): 29–32. http://dx.doi.org/10.4028/www.scientific.net/amr.627.29.

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This paper firstly introduces the performance of some kinds of thermal protective clothing materials, for example, Nomex, Polysulfonamide fiber (PSA), polyphenylene sulfide fiber (PPS) and pre-oxidized fiber. Then mainly states the application status through investigation. According to their merits and demerits, we can improve clothes' comfort and functionality through blending. Finally, we should aim to gain more practical and environmental friendly thermal protective fibers.

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Leleka, S. V., Ye M. Panov, A. Ya Karvatskii, et al. "DEVELOPMENT OF ENERGY-EFFICIENT AND ENVIRONMENTALLY FRIENDLY LININGS AND THERMAL INSULATION OF ELECTRODE PRODUCTION FURNACES." Energy Technologies & Resource Saving, no. 3 (September 20, 2020): 21–34. http://dx.doi.org/10.33070/etars.3.2020.02.

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A numerical analysis of the thermoelectric state of the Acheson furnace was performed and the use of new thermal insulation of blanks that are graphitized was proposed. The expediency of using a single-component heat-insulating charge as thermal insulation is shown. In this case, in comparison with the use of a traditional multicomponent synthetic mixture, not only a decrease in the temperature of the blanks is observed, but also a significant equalization of temperature along the axis of the blanks. Based on the results of measuring the thermophysical properties and numerical simulation of te

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Chandra, Vishal, Neerja Srivastava, Arpita Kumari, Pramod Yadav, Vikas Raghuvanshi, and Rahul. "Recent Development in Production Optimization of Recombinant Laccase Enzymes for Successful Bioremediation of Industrial Effluent: A Review." International Advance Journal of Engineering, Science and Management (IAJESM) 15, no. 2 (2021): 68–74. https://doi.org/10.5281/zenodo.8108377.

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Industrial effluents contain various types of contaminants that pose serious threats to the environment and human health. Bioremediation is an environmentally friendly, sustainable, and cost-effective approach to degrade or transform these pollutants using microbial enzymes. Among them, laccase is a versatile and robust enzyme that can oxidize a wide range of substrates, such as dyes, phenolic compounds, pesticides, and polycyclic aromatic hydrocarbons (PAHs), with the consumption of molecular oxygen. Laccase can also remove heavy metals by forming complexes with organic ligands or reducing th

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Sheibani, Elyas, Saman Soltani Alasvand, Neda Sami, Jalil Vahdati Khaki, and Sahar Mollazadeh Beidokhti. "The Solution Combustion Synthesis of ZnO Nanoparticles Using Allium schoenoprasum (Chives) as a Green Fuel." Compounds 4, no. 3 (2024): 503–20. http://dx.doi.org/10.3390/compounds4030030.

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Zinc oxide (ZnO) nanoparticles are widely recognized for their distinctive properties and versatile applications across diverse technological domains. However, traditional methods of synthesizing ZnO nanoparticles are characterized by environmental incompatibility, high costs, and the necessity for precise process control to attain the intended particle dimensions and morphology. The present study utilized a chives extract as a sustainable and eco-friendly fuel in the solution combustion synthesized (SCS) process to produce ZnO nanoparticles. The investigation encompassed an analysis of the im

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Hu, Lichen, Feiyu Long, Borui Xie, and Xuanzhou Zhuang. "Four variants of turbofan, turbojet, turboprop and ramjet engines and their future prospects." Applied and Computational Engineering 11, no. 1 (2023): 137–42. http://dx.doi.org/10.54254/2755-2721/11/20230222.

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A jet engine is a sophisticated machine that has revolutionized the aviation industry. It is a type of internal combustion engine that uses air as its oxidizer and fuel to produce thrust. The third law of motion, which states that there is an equivalent and opposite response to every action, governs how the engine functions. Compressed air is combined with fuel, ignited in the combustion chamber, and then expelled out of the jet engine at a high rate of speed to create propulsion. The development of jet engines has been a long and arduous process, with many different designs and configurations

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Dîrloman, Florin Marian, Gabriela Toader, Traian Rotariu, et al. "Novel Polyurethanes Based on Recycled Polyethylene Terephthalate: Synthesis, Characterization, and Formulation of Binders for Environmentally Responsible Rocket Propellants." Polymers 13, no. 21 (2021): 3828. http://dx.doi.org/10.3390/polym13213828.

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Novel polyurethane-based binders, specifically designed for environmentally responsible rocket propellant composites, were obtained by employing the polyester-polyols that resulted from the degradation of polyethylene terephthalate waste. A new class of “greener” rocket propellants, comprising polyurethanes (based on recycled PET) as the binder, phase stabilized ammonium nitrate (PSAN) as the eco-friendly oxidizer, and triethylene glycol dinitrate (TEGDN) as the energetic plasticizer, together with aluminum as fuel and Fe2O3 as the catalyst, is herein reported. The components of the energetic

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Karic, Natasa, Jelena Rusmirovic, Maja Djolic, et al. "Preparation and properties of hydrogen peroxide oxidized starch for industrial use." Chemical Industry 74, no. 1 (2020): 25–36. http://dx.doi.org/10.2298/hemind190722004k.

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Oxidized starch, an additive used in paper manufacturing and products for construction industry, is usually produced using harmful oxidant, such as hypochlorites or periodates. In this study, a simple and efficient eco-friendly laboratory and industrial procedures for starch oxidation were developed. The procedure involves application of small amounts of more environmentally friendly oxidant, hydrogen peroxide, a novel special metal complex catalyst such as copper(II) citrate and copper(II) ricinoleate and biobased plasticizers. Optimization procedure, with respect to the quantity of hydrogen

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Więckol-Ryk, Angelika, Maciej Thomas, and Barbara Białecka. "Improving the Properties of Degraded Soils from Industrial Areas by Using Livestock Waste with Calcium Peroxide as a Green Oxidizer." Materials 14, no. 11 (2021): 3132. http://dx.doi.org/10.3390/ma14113132.

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Over the past years, the treatment and use of livestock waste has posed a significant problem in environmental engineering. This paper outlines a new approach to application of calcium peroxide (CaO2) as a green oxidizer and microbiocidal agent in the treatment of poultry manure. It also presents the application of pretreated waste in improvement of degraded soils in industrial areas. The CCD (Central Composite Design) and RSM (Response Surface Methodology) were employed for optimizing the process parameters (CaO2 concentration 1.6–8.4 wt %, temperature 5.2–38.8 °C and contact time 7–209 h). T

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Zou, Binger. "Progress on Mercury-containing Wastewater Treatment." Highlights in Science, Engineering and Technology 73 (November 29, 2023): 357–63. http://dx.doi.org/10.54097/hset.v73i.13101.

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With the development of industry and economy in the world, a large amount of heavy metal industrial wastewater is difficult to decompose in nature and is discharged without treatment to form water pollution. It poses a major threat to the environment, ecology, and human health. Mercury is one of the highly toxic heavy metal elements in the environment. Mercury and mercury compounds are widely present in nature. This article introduces three methods for treating mercury wastewater including chemical precipitation, adsorption, and photocatalysis. Adsorbents such as activated carbon, iron oxide,

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Dai, Hao, Wengao Yao, Xiaohu Zhou, Zhuo Tang, Qiang Zhou, and Xi Li. "Study of H2O2/Cu2+ Catalyzed Oxidation Process of Maltodextrin." Catalysts 13, no. 4 (2023): 733. http://dx.doi.org/10.3390/catal13040733.

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In this study, oxidized maltodextrins with a high concentration of carboxyl groups were produced using CuSO4 as a catalyst and H2O2 as an eco-friendly oxidant. Infrared spectroscopy, proton-nuclear magnetic resonance spectroscopy, and thermogravimetric analysis were utilized to examine the structure and properties of oxidized maltodextrins. The reaction conditions were optimized in terms of oxidant content, catalyst content, temperature, pH, and reaction time. The prepared oxidized maltodextrin had a carboxyl group content of 105% under the conditions of 200% molar H2O2, 1% molar catalyst, 55

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Laksono, Fajar Budi. "Optimum Calcination Temperature In Titanium Dioxide (TiO2) Photocatalyst Coating For Stain-Resistant Fabrics." Multidisciplinary Innovations and Research in Applied Engineering 1, no. 1 (2024): 50–58. https://doi.org/10.70935/25wh3g91.

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The utilization of wind energy in Indonesia is still low due to the average wind speed ranging from 3 m/s to 11 m/s making it the increasing demand for clothing has driven innovations to address the issue of dirt on clothes in a more practical and environmentally friendly manner. This study explores the use of titanium dioxide (TiO2) as an anti-dirt agent on fabric through a photocatalytic coating process. TiO2 was chosen for its photocatalytic properties, which can oxidize organic compounds into carbon dioxide (CO2) and water (H2O) when exposed to UV light. The fabric coating was carried out

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Prawiranegara, Barata Aditya, Panca Setia Utama, Amun Amri, et al. "Metal-Free Activated Carbon Catalytic for Degradation of Organic Contaminants by Peroxydisulfate Activation." Journal of Applied Materials and Technology 5, no. 1 (2024): 20–26. http://dx.doi.org/10.31258/jamt.5.1.20-26.

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Green chemistry has become trending recently, and the discovery of environmentally friendly catalysts is mandatory. Activated carbons (ACs) are one of the most environmentally friendly yet cheap materials that have the potential for catalyst application. Three commercially available ACs from Pancasari, Norit, and Chemical Supply were used as metal-free catalysts for advanced oxidation process (AOP) phenol removal in water in the presence of oxidants peroxydisulfate (PDS), and hydrogen peroxide (H2O2). It was found that ACs were effective to be used as catalysts for activating those oxidants to

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Liu, Chengyuan, Huali Lin, Shichao Zhang, et al. "Characterization of Water-Resistant Adhesive Prepared by Cross-Linking Reaction of Oxidized Starch with Lignin." Polymers 17, no. 11 (2025): 1545. https://doi.org/10.3390/polym17111545.

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Wood adhesives play a critical role in the wood processing industry; however, traditional formaldehyde-based adhesives pose health risks and are reliant on non-renewable resources. This study aims to develop a bio-based wood adhesive with excellent water resistance, focusing on environmentally friendly solutions. The synthesis of an oxidized starch-lignin (OSTL) composite adhesive was accomplished by modifying starch via oxidation and subsequent cross-linking with lignin. Ammonium persulfate (APS) was employed for oxidation of starch, introducing aldehyde groups that upgrade its reactivity wit

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González-Torres, Berenice, Miguel Ángel Robles-García, Melesio Gutiérrez-Lomelí, et al. "Combination of Sorbitol and Glycerol, as Plasticizers, and Oxidized Starch Improves the Physicochemical Characteristics of Films for Food Preservation." Polymers 13, no. 19 (2021): 3356. http://dx.doi.org/10.3390/polym13193356.

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The aim of this work was to use glycerol (Gly) and sorbitol (Sor) as plasticizers with oxidized starch potato (OS) to produce biodegradable and environmentally friendly films, and to demonstrate the resulting physicochemical and functional viability without subtracting the organoleptic characteristics of the food. Analyses by water vapor permeability (WVP), attenuated total reflection Fourier transform infrared spectra (ATR-FTIR), scanning electron microscopy (SEM), tensile strength (TS), and transparency (UV) showed that the best film result was with 1.5 g of Gly and 2.0 g of Sor, conferred s

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