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Molecular Research on Catalytic Materials for Green Chemistry

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Materials Science".

Deadline for manuscript submissions: closed (15 December 2023) | Viewed by 1611

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The Spark Plasma Sintering Research Laboratory, Moscow State Technological University Stankin, Moscow, Russia
Interests: powders; powder technology; nanomaterials synthesis; materials processing; advanced materials; nanocomposites; ceramic materials; composite material; biomaterials; sintering; material characterization; microstructure; mechanical properties; material characteristics; materials testing; tribology; fatigue
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Special Issue Information

Dear Colleagues,

The search for new non-waste chemical starting materials and technological schemes or, in other words, “Green Chemistry,” which is being developed in many laboratories around the world, is designed to obtain the desired substance in such a way that, ideally, it does not harm the environment at all stages of its production. Green chemistry, as a prerequisite for the sustainable development of society, is now at the forefront all over the world. Sustainable development refers to the development of new approaches, methods, and techniques that allow one, first, to reduce the strong dependence on natural resources (oil, gas, etc.), whose sources are known to be exhaustible, by using other, renewable resources (for example, biomass) and, second, to find new renewable energy sources necessary for the sustenance of mankind. Most current synthetic methods for producing new compounds are based on stoichiometric reactions, which are usually associated with the generation of large amounts of waste. On the other hand, catalytic methods are promising technologies for solving energy and environmental problems, which can help transform pollutants into non-toxic or even useful chemical compounds. Thus, this Special Issue, “Molecular Research on Catalytic Materials for Green Chemistry,” is devoted to solving the above-mentioned problems by means of catalytic chemistry, which includes both theoretical (attempts to create a theory of anticipating catalytic action and a theory of preparing catalysts, advancing knowledge of the mechanisms of catalysis) and practical (methods for selecting, synthesizing, and applying catalysts) problems for various fields of science, technology, and engineering. Our main goal is to provide researchers working in this field with an opportunity to communicate their experimental and theoretical results as well as reviews, perspectives, and viewpoints to the general public.

Dr. Anton Smirnov
Guest Editor

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Keywords

  • green chemistry
  • catalytic materials
  • molecular research
  • catalysis
  • synthesis
  • reactivity
  • application

Published Papers (1 paper)

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Research

16 pages, 4071 KiB  
Article
Adsorption Removal of Mo(VI) from an Aqueous Solution by Alumina with the Subsequent Regeneration of the Adsorbent
by Alexandra Yu. Kurmysheva, Marina D. Vedenyapina, Stanislav A. Kulaishin, Pavel Podrabinnik, Nestor Washington Solís Pinargote, Anton Smirnov, Alexander S. Metel, José F. Bartolomé and Sergey N. Grigoriev
Int. J. Mol. Sci. 2023, 24(10), 8700; https://doi.org/10.3390/ijms24108700 - 12 May 2023
Cited by 7 | Viewed by 1263
Abstract
Industrial wastewater is the main source of an excessive amount of molybdenum (Mo) in natural ecosystems. It is necessary to remove Mo from wastewater before it is discharged into the environment. Molybdate ion(VI) is the most common form of Mo in natural reservoirs [...] Read more.
Industrial wastewater is the main source of an excessive amount of molybdenum (Mo) in natural ecosystems. It is necessary to remove Mo from wastewater before it is discharged into the environment. Molybdate ion(VI) is the most common form of Mo in natural reservoirs and industrial wastewater. In this work, the sorption removal of Mo(VI) from an aqueous medium was evaluated using aluminum oxide. The influence of such factors as the pH of the solution and the temperature was evaluated. Three adsorption isotherms, namely, Langmuir, Freundlich and Temkin, were used to describe the experimental results. It was found that the pseudo-first order kinetic model better fits the kinetic data of the adsorption process, and the maximum Mo(VI) adsorption capacity was 31 mg/g at 25 °C and pH 4. The thermodynamic parameters indicated that the process of Mo(VI) adsorption on Al2O3 was exothermic and spontaneous. It was shown that the adsorption of Mo strongly depends on pH. The most effective adsorption was observed at pH values below 7. Experiments on adsorbent regeneration showed that Mo(VI) can be effectively desorbed from the aluminum oxide surface into a phosphate solution in a wide range of pH values. After the desorption of Mo(VI) in a phosphate solution, alumina was found to be suitable for repeating the procedure at least five times. Full article
(This article belongs to the Special Issue Molecular Research on Catalytic Materials for Green Chemistry)
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