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Chemical Technologies for Environmental Analysis and Pollution Removal, 2nd Edition

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Applied Chemistry".

Deadline for manuscript submissions: 31 December 2024 | Viewed by 641

Special Issue Editors


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Guest Editor
Department of Biological and Pharmaceutical Environmental Sciences and Technologies (DISTABIF), University of Campania Luigi Vanvitelli, Naples, Italy
Interests: environmental analysis; removal of environmental pollutants; wastewater treatment; environmental chemistry; advanced oxidation processes
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Engineering, University of Campania "Luigi Vanvitelli", Aversa, Italy
Interests: adsorbents; adsorption technology; removal of environmental pollutants; wastewater treatment; advanced oxidation processes; electrochemical oxidation; water reuse

Special Issue Information

Dear Colleagues,

Environmental pollution, particularly in water, is a significant global concern due to its impact on human health and the ecosystem. The presence of various pollutants in wastewater, such as pharmaceuticals and personal care products, heavy metals, organic compounds, micro- and nanoplastics, surfactants, and pathogens, has resulted in severe consequences, including the contamination of drinking water sources, the destruction of aquatic habitats, and the spread of waterborne diseases.

To address this problem, numerous chemical technologies have been developed for the analysis and removal of pollutants in water, including advanced oxidation processes, membrane filtration, adsorption, and biological treatment, among others. These technologies have demonstrated great potential in effectively removing various types of pollutants from water, either alone or in combination with other methods.

This Special Issue invites original research papers and reviews reporting on recent progress in the development of chemical technologies for environmental analysis and pollution removal in water. This Special Issue will cover a broad range of topics, including the development of new methods for environmental analysis, the characterization of pollutants in water, the application of advanced oxidation processes, membrane filtration, and new adsorption materials for water treatment, as well as the evaluation of the performance and efficiency of these technologies. Additionally, focused review articles are welcome to examine the state of the art, identify emerging trends, and suggest future directions for developing new applications in this field.

Dr. Pasquale Iovino
Dr. Angelo Fenti
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • advanced oxidation processes
  • wastewater treatment
  • adsorbents
  • emerging technologies
  • removal of environmental pollutants
  • analysis techniques
  • emerging pollutant

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Published Papers (1 paper)

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Research

20 pages, 10872 KiB  
Article
Effect of Tourmaline Addition on the Anti-Poisoning Performance of MnCeOx@TiO2 Catalyst for Low-Temperature Selective Catalytic Reduction of NOx
by Zhenzhen Zhao, Liyin Wang, Xiangqing Lin, Gang Xue, Hui Hu, Haibin Ma, Ziyu Wang, Xiaofang Su and Yanan Gao
Molecules 2024, 29(17), 4079; https://doi.org/10.3390/molecules29174079 - 28 Aug 2024
Viewed by 544
Abstract
In view of the flue gas characteristics of cement kilns in China, the development of low-temperature denitrification catalysts with excellent anti-poisoning performance has important theoretical and practical significance. In this work, a series of MnCeOx@TiO2 and tourmaline-containing MnCeOx@TiO [...] Read more.
In view of the flue gas characteristics of cement kilns in China, the development of low-temperature denitrification catalysts with excellent anti-poisoning performance has important theoretical and practical significance. In this work, a series of MnCeOx@TiO2 and tourmaline-containing MnCeOx@TiO2-T catalysts was prepared using a chemical pre-deposition method. It was found that the MnCeOx@TiO2-T2 catalyst (containing 2% tourmaline) exhibited the best low-temperature NH3-selective catalytic reduction (NH3-SCR) performance, yielding 100% NOx conversion at 110 °C and above. When 100–300 ppm SO2 and 10 vol.% H2O were introduced to the reaction, the NOx conversion of the MnCeOx@TiO2-T2 catalyst was still higher than 90% at 170 °C, indicating good anti-poisoning performance. The addition of appropriate amounts of tourmaline can not only preferably expose the active {001} facets of TiO2 but also introduce the acidic SiO2 and Al2O3 components and increase the content of Mn4+ and Oα on the surface of the catalyst, all of which contribute to the enhancement of reaction activity of NH3-SCR and anti-poisoning performance. However, excess amounts of tourmaline led to the formation of dense surface of catalysts that suppressed the exposure of catalytic active sites, giving rise to the decrease in catalytic activity and anti-poisoning capability. Through an in situ DRIFTS study, it was found that the addition of appropriate amounts of tourmaline increased the number of Brønsted acid sites on the catalyst surface, which suppressed the adsorption of SO2 and thus inhibited the deposition of NH4HSO4 and (NH4)2HSO4 on the surface of the catalyst, thereby improving the NH3-SCR performance and anti-poisoning ability of the catalyst. Full article
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