Design and Preparation of Environmental Functional Materials for Pollutant Removal

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

Deadline for manuscript submissions: 10 August 2025 | Viewed by 1644

Special Issue Editors


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Guest Editor
School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Interests: functional materials; electrochemistry; wastewater purification

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Guest Editor Assistant
School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China
Interests: industrial wastewater; environmental functional materials

Special Issue Information

Dear Colleagues,

With the rapid development of society and technology, the types and amounts of wastewater generated have increased dramatically, followed by the urgent need of wastewater treatment. Great damage to the ecological environment and human health risks would be caused if wastewater is discharged into the environment directly without appropriate treatment. Advanced functional material exploration matched with different wastewater treatment processes, such as membrane separation, adsorption, advanced oxidant process, electro-chemical technology, etc., have been research hotspots. This Special Issue aims to provide some instructive reviews and research in the synthesis, characterizations, and applications of advanced functional materials for wastewater purification and resource recovery from pollutants.

Therefore, it is my pleasure to invite you to contribute your research articles, communications, or reviews to this Special Issue dedicated to treatment processes, mechanisms, functional materials, reactor design, and resource recovery in wastewater purification.

Dr. Yujun Zhou
Guest Editor

Dr. Jianfei Li
Guest Editor Assistant

Manuscript Submission Information

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Keywords

  • wastewater treatment
  • membrane separation
  • electrochemical technology
  • adsorption
  • resource recovery
  • electrodes and reactor design
  • wastewater treatment

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Published Papers (1 paper)

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Review

17 pages, 2035 KiB  
Review
The Removal of Organic Pollutants and Ammonia Nitrogen from High-Salt Wastewater by the Electro-Chlorination Process and Its Mechanism
by Yujun Zhou, Tangrui Hou and Bo Zhou
Separations 2024, 11(12), 353; https://doi.org/10.3390/separations11120353 - 18 Dec 2024
Viewed by 1327
Abstract
Electro-chlorination (E-Cl) is an emerging and promising electrochemical advanced oxidation technology for wastewater treatment with the advantages of high efficiency, deep mineralization, a green process, and easy operation. It was found that the mechanism of pollutant removal by electro-chlorination mainly involves an indirect [...] Read more.
Electro-chlorination (E-Cl) is an emerging and promising electrochemical advanced oxidation technology for wastewater treatment with the advantages of high efficiency, deep mineralization, a green process, and easy operation. It was found that the mechanism of pollutant removal by electro-chlorination mainly involves an indirect oxidation process, in which pollutant removal is mainly driven by the intermediate active species, especially RCS and chlorine radicals, with a strong oxidization ability produced at the anodes. In this work, we summarized the principles and pathways of the removal/degradation of pollutants (organic pollutants and ammonia nitrogen) by E-Cl and the major affecting factors including the applied current density, voltage, electrolyte concentration, initial pH value, etc. In the E-Cl system, the DSA and BDD electrodes were the most widely used electrode materials. The flow-through electrode reactor was considered to be the most promising reactor since it had a high porosity and large pore size, which could effectively improve the mass transfer efficiency and electron transfer efficiency of the reaction. Of the many detection methods for chlorine radicals and RCS, electron paramagnetic resonance (EPR) and spectrophotometry with N, N-diethyl-1,4-phenylenediamine sulfate (DPD) as the chromogenic agent were the two most widely used methods. Overall, the E-Cl process had excellent performance and prospects in treating salt-containing wastewater. Full article
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