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Control and Emission Reduction of Gas Pollutants
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Control and Emission Reduction of Gas Pollutants

A special issue of International Journal of Environmental Research and Public Health (ISSN 1660-4601). This special issue belongs to the section "Environmental Science and Engineering".

Deadline for manuscript submissions: closed (23 November 2023) | Viewed by 1468

Special Issue Editor

Dr. Shibo Zhang

E-Mail Website
Guest Editor
Environment Research Institute, Shandong University, Qingdao 266237, China
Interests: NOx; mercury; SCR catalyst; adsorbent; multi-pollutant synergy; heterogeneous reaction mechanism

Special Issue Information

Dear Colleagues,

Gas pollutants, which are artificially devrived from industrial emissions, e.g., from coal combustion, greatly threaten human health and the ecological environment. For example, NOx and SOx can cause acid rain, ozone depletion and photochemical smog. Heavy metals, such as gaseous mercury, are highly toxic, persistent and prone to bioaccumulation. Fine particulate matter produces fog hazes. Volatile organic compounds are toxic, irritatable and carcinogenic. All of these gas pollutants can engender a series of environmental and health problems, and many countries have promulgated rigorous regulations to limit their discharges. It is time that we focus our efforts on controlling the emission of gas pollutants through the dual perspectives of environmental protection and convention fulfilment. For this Special Issue, papers presenting novel ideas and breakthroughs for pollutant control are welcome.

Dr. Shibo Zhang
Guest Editor

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. International Journal of Environmental Research and Public Health is an international peer-reviewed open access monthly 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 2500 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

  • NOx
  • mercury
  • SCR catalyst
  • adsorbent
  • multi-pollutant synergy
  • heterogeneous reaction mechanism

Published Papers (1 paper)

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Research

13 pages, 4502 KiB  
Article
BiOI-SnO2 Heterojunction Design to Boost Visible-Light-Driven Photocatalytic NO Purification
by Han Chen, Yutao Hu, Zanyun Ying, Yinfeng Xia, Jiexu Ye, Jingkai Zhao and Shihan Zhang
Int. J. Environ. Res. Public Health 2023, 20(5), 4009; https://doi.org/10.3390/ijerph20054009 - 23 Feb 2023
Cited by 3 | Viewed by 1159
Abstract
The efficient, stable, and selective photocatalytic conversion of nitric oxide (NO) into harmless products such as nitrate (NO3−) is greatly desired but remains an enormous challenge. In this work, a series of BiOI/SnO2 heterojunctions (denoted as X%B-S, where [...] Read more.
The efficient, stable, and selective photocatalytic conversion of nitric oxide (NO) into harmless products such as nitrate (NO3−) is greatly desired but remains an enormous challenge. In this work, a series of BiOI/SnO2 heterojunctions (denoted as X%B-S, where X% is the mass portion of BiOI compared with the mass of SnO2) were synthesized for the efficient transformation of NO into harmless NO3−. The best performance was achieved by the 30%B-S catalyst, whose NO removal efficiency was 96.3% and 47.2% higher than that of 15%B-S and 75%B-S, respectively. Moreover, 30%B-S also exhibited good stability and recyclability. This enhanced performance was mainly caused by the heterojunction structure, which facilitated charge transport and electron-hole separation. Under visible light irradiation, the electrons gathered in SnO2 transformed O2 to ·O2− and ·OH, while the holes generated in BiOI oxidized H2O to produce ·OH. The abundantly generated ·OH, ·O2−, and 1O2 species effectively converted NO to NO− and NO2−, thus promoting the oxidation of NO to NO3−. Overall, the heterojunction formation between p-type BiOI and n-type SnO2 significantly reduced the recombination of photo-induced electron-hole pairs and promoted the photocatalytic activity. This work reveals the critical role of heterojunctions during photocatalytic degradation and provides some insight into NO removal. Full article
(This article belongs to the Special Issue Control and Emission Reduction of Gas Pollutants)
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