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Advances in Air Pollutant Treatment Technology
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Advances in Air Pollutant Treatment Technology

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

Deadline for manuscript submissions: closed (30 September 2024) | Viewed by 5224

Special Issue Editor

Prof. Dr. Rui Wang

E-Mail Website
Guest Editor
School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
Interests: selective catalytic reduction; silicon-controlled rectifiers; catalyst; circular waste management
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Over the last few decades, human social development is based on the consumption of sources (e.g., coal, crude oil, natural gas), and the development of urbanization and industrialization has also generated serious air pollution problems. The double pressure of atmospheric quality using various air pollutants (e.g., SO2, NOx, VOCs, H2S, PM, and Hg), together with greenhouse gases (e.g., CO2), is driving the development of air pollutant treatment technology. During this process, innovative methods of capturing, converting, and utilizing air pollutants have been invented and implemented. There is a need to provide a unique opportunity for researchers to present and discuss recent advances in air pollutant treatment and air quality management. Papers addressing these topics are invited for this Special Issue, especially those combining a high academic standard coupled with optimal air pollutant treatment technology. We sincerely hope that the most up-to-date views and outlooks in the field in this Special Issue will advance the research frontier and improve our understanding of air pollutant control technologies. We expect that these cutting-edge articles will promote discussions among established scientists and also benefit the journal readers.

Prof. Dr. Rui Wang
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.

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Keywords

  • air pollutant
  • SO2
  • NOx
  • VOCs
  • H2S
  • PM
  • Hg
  • CO2
  • capture
  • conversion
  • utilization

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Published Papers (2 papers)

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Research

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15 pages, 2830 KiB  
Article
Effective Absorption of Dichloromethane Using Carboxyl-Functionalized Ionic Liquids
by Mengjun Wang, Manman Zhang, Shaojuan Zeng, Yi Nie, Tao Li, Baozeng Ren, Yinge Bai and Xiangping Zhang
Int. J. Environ. Res. Public Health 2023, 20(10), 5787; https://doi.org/10.3390/ijerph20105787 - 11 May 2023
Cited by 6 | Viewed by 2750
Abstract
Dichloromethane (DCM) is recognized as a very harmful air pollutant because of its strong volatility and difficulty to degrade. Ionic liquids (ILs) are considered as potential solvents for absorbing DCM, while it is still a challenge to develop ILs with high absorption performances. [...] Read more.
Dichloromethane (DCM) is recognized as a very harmful air pollutant because of its strong volatility and difficulty to degrade. Ionic liquids (ILs) are considered as potential solvents for absorbing DCM, while it is still a challenge to develop ILs with high absorption performances. In this study, four carboxyl-functionalized ILs—trioctylmethylammonium acetate [N1888][Ac], trioctylmethylammonium formate [N1888][FA], trioctylmethylammonium glycinate [N1888][Gly], and trihexyl(tetradecyl)phosphonium glycinate [P66614][Gly]—were synthesized for DCM capture. The absorption capacity follows the order of [P66614][Gly] > [N1888][Gly] > [N1888][FA] > [N1888][Ac], and [P66614][Gly] showed the best absorption capacity, 130 mg DCM/g IL at 313.15 K and a DCM concentration of 6.1%, which was two times higher than the reported ILs [Beim][EtSO4] and [Emim][Ac]. Moreover, the vapor–liquid equilibrium (VLE) of the DCM + IL binary system was experimentally measured. The NRTL (non-random two-liquid) model was developed to predict the VLE data, and a relative root mean square deviation (rRMSD) of 0.8467 was obtained. The absorption mechanism was explored via FT-IR spectra, 1H-NMR, and quantum chemistry calculations. It showed a nonpolar affinity between the cation and the DCM, while the interaction between the anion and the DCM was a hydrogen bond. Based on the results of the study of the interaction energy, it was found that the hydrogen bond between the anion and the DCM had the greatest influence on the absorption process. Full article
(This article belongs to the Special Issue Advances in Air Pollutant Treatment Technology)
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Review

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19 pages, 3516 KiB  
Review
Ionic Liquids as Green and Efficient Desulfurization Media Aiming at Clean Fuel
by Peng Wang, Rui Wang and Vitaly Edwardovich Matulis
Int. J. Environ. Res. Public Health 2024, 21(7), 914; https://doi.org/10.3390/ijerph21070914 - 12 Jul 2024
Cited by 7 | Viewed by 1644
Abstract
With increasingly stringent emission limits on sulfur and sulfur-containing substances, the reduction and removal of sulfur compounds from fuels has become an urgent task. Emissions of sulfur-containing compounds pose a significant threat to the environment and human health. Ionic liquids (ILs) have attracted [...] Read more.
With increasingly stringent emission limits on sulfur and sulfur-containing substances, the reduction and removal of sulfur compounds from fuels has become an urgent task. Emissions of sulfur-containing compounds pose a significant threat to the environment and human health. Ionic liquids (ILs) have attracted much attention in recent years as green solvents and functional materials, and their unique properties make them useful alternatives to conventional desulfurization organic solvents. This paper reviews the advantages and disadvantages of traditional desulfurization technologies such as hydrodesulfurization, oxidative desulfurization, biological desulfurization, adsorptive desulfurization, extractive desulfurization, etc. It focuses on the synthesis of ionic liquids and their applications in oxidative desulfurization, extractive desulfurization, extractive oxidative desulfurization, and catalytic oxidative desulfurization, and it analyzes the problems of ionic liquids that need to be solved urgently in desulfurization, looking forward to the development of sulfuric compounds as a kind of new and emerging green solvent in the field of desulfurization. Full article
(This article belongs to the Special Issue Advances in Air Pollutant Treatment Technology)
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