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Separations
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Application of Advanced Materials and Technologies in the Separation and...
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Application of Advanced Materials and Technologies in the Separation and Adsorption

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Materials in Separation Science".

Deadline for manuscript submissions: 10 March 2025 | Viewed by 1161

Special Issue Editor

Dr. Hao Wu

E-Mail Website
Guest Editor
School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing, China
Interests: pollutant (condensable particulate matter/SO3/ammonia emission/ VOCs/trace element) removal; wastewater treatment; resource utilization; high-efficiency separation technology

Special Issue Information

Dear Colleagues,

The application of advanced materials and technologies in the fields of separation and adsorption is garnering significant attention in contemporary research. This interest is driven by the potential to develop more efficient, selective, and environmentally sustainable materials and technologies. The selection of appropriate materials and technologies is critical to optimizing separation efficiency and adsorption capacity while minimizing the co-adsorption of unwanted substances. Techniques play a vital role in evaluating the effectiveness of these processes and ensuring the purity and functionality of the separated compounds for various industrial and environmental applications.

Thus, I am pleased to invite you to contribute your research article, communication, or review to this Special Issue dedicated to the application of advanced materials and technologies in separation and adsorption. This Special Issue will gather innovative research on materials and techniques that enhance the separation and adsorption of target compounds. Your contribution will help to advance our understanding of these crucial processes and promote the development of sustainable and high-performance materials and technologies.

Dr. Hao Wu
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. Separations 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 2600 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 material
  • technology
  • separation
  • adsorption
  • pollutant treatment
  • efficient
  • low energy consumption
  • resource utilization

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

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Research

17 pages, 3383 KiB  
Article
Condensable Particulate Matter Removal and Its Mechanism by Phase Change Technology During Wet Desulfurization Process
by Hui Tong, Yun Xu, Qiangqiang Ren, Hao Wu, Linzhi Shen, Menglong Sun and Hongmin Yang
Separations 2024, 11(11), 330; https://doi.org/10.3390/separations11110330 - 18 Nov 2024
Viewed by 465
Abstract
Limestone-gypsum wet flue gas desulfurization (WFGD) played a key role in SOx removal and clean emissions. However, it would also affect the condensable particulate matter (CPM) removal and compositions. The effects of the WFGD system on the removal of CPM and the contents [...] Read more.
Limestone-gypsum wet flue gas desulfurization (WFGD) played a key role in SOx removal and clean emissions. However, it would also affect the condensable particulate matter (CPM) removal and compositions. The effects of the WFGD system on the removal of CPM and the contents of soluble ions in CPM were investigated in a spray desulfurization tower at varied conditions. The results indicate that the emission concentration of CPM decreased from 7.5 mg/Nm3 to 3.7 mg/Nm3 following the introduction of cold water spray and hot alkali droplet spray systems. This resulted in a CPM reduction rate of approximately 51%, reducing the percentage of CPM in total particulate matter and solving the problem of substandard particulate matter emission concentrations in some coal-fired power plants. The concentrations of NO3−, SO42−, and Cl− among the soluble ions decreased by 41–66.6%. As the liquid-to-gas ratio of the cold water spray and hot alkali droplet spray increased, CPM came into contact with more spray, which accelerated dissolution and chemical reactions. Consequently, the CPM emission concentration decreased by 17.4–19%. The liquid-to-gas ratio has a great effect on the ion concentrations of NO3−, SO42−, Cl− and NH4+, with a decrease of 28–66%. The temperatures of the cold water spray and the hot alkali droplet spray primarily affect the ionic concentrations of SO42− and Ca2+, leading to a decrease of 32.3–51%. When the SO2 concentration increased from 0 mg/Nm3 to 1500 mg/Nm3, large amounts of SO2 reacted with the desulfurization slurry to form new CPM and its precursors, the CPM emission concentration increased by 57–68.4%. This study addresses the issue of high Concentration of CPM emissions from coal-fired power plants in a straightforward and efficient manner, which is significant for enhancing the air quality and reducing hazy weather conditions. Also, it provides a theoretical basis and technical foundation for the efficient removal of CPM from actual coal-fired flue gas. Full article
(This article belongs to the Special Issue Application of Advanced Materials and Technologies in the Separation and Adsorption)
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11 pages, 8089 KiB  
Article
Copper–Chitosan-Modified Magnetic Textile as a Peroxidase-Mimetic Catalyst for Dye Removal
by Ivo Safarik, Jitka Prochazkova and Kristyna Zelena Pospiskova
Separations 2024, 11(11), 325; https://doi.org/10.3390/separations11110325 - 10 Nov 2024
Viewed by 415
Abstract
Copper chitosan attached to a magnetic synthetic nonwoven textile was manufactured using a simple, rapid, and green procedure employing chitosan dissolved in diluted acetic acid and treatment with copper sulfate solution. The prepared copper–chitosan-modified textile exhibited peroxidase-mimetic activity which was subsequently used for [...] Read more.
Copper chitosan attached to a magnetic synthetic nonwoven textile was manufactured using a simple, rapid, and green procedure employing chitosan dissolved in diluted acetic acid and treatment with copper sulfate solution. The prepared copper–chitosan-modified textile exhibited peroxidase-mimetic activity which was subsequently used for the degradation (decolorization) of important organic dyes, namely methylene blue, Congo red, and Bismarck brown Y, in the presence of hydrogen peroxide. After 5 h of treatment at 22 °C, 87.5%, 79.5%, and 87.7% dye removal were observed for methylene blue, Congo red, and Bismarck brown Y, respectively. The textile bound catalyst can be easily recovered from the reaction mixture after the process is completed. Full article
(This article belongs to the Special Issue Application of Advanced Materials and Technologies in the Separation and Adsorption)
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