Functional Nanofibrous Membrane for Environmental Remediation

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Materials Processes".

Deadline for manuscript submissions: closed (20 September 2021) | Viewed by 4676

Special Issue Editors


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Guest Editor
State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150001, China
Interests: water purification; membrane and filtration; chemical sensors

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Guest Editor
Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, School of Environment and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Interests: specially wettable membranes for environmental application

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Guest Editor
School of Ecology and Environment, Zhengzhou University, 100 Science Street, Zhengzhou 450001, China
Interests: membrane; solar evaporation; wastewater treatment
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Special Issue Information

Dear Colleagues,

Global industrialization acceleration has brought about a series of environmental problems. Separating pollutants from water, air and soil effectively for advancing resource recycling and environment purification has shown important environmental significance. Nanofibrous membranes that have been fabricated through melt blowing, melt extrusion phase separation, the sol–gel method, electrospinning, etc., have had unmatched potential for environmental remediation fields, such as adsorption, catalysis, membrane separation, water purification and mass production, for virus filtration during COVID-19 in 2020, due to their controllable fiber diameter, high porosity and interconnected pores. To achieve a better application of nanofibrous membrane in the environment field, the nanofibrous membrane should combine other modifications or technologies to produce individual interface and pore structures for sustainable environmental remediation.

This Special Issue on “Functional Nanofibrous Membrane for Environmental Remediation” aims to gather outstanding research and comprehensive coverage of all aspects related to nanofibrous membranes for environmental application, covering a wide range of technologies to produce novel nanofibers, composite nanofibrous membranes with novel pore structures, and as interface or combined with other technologies. This Special Issue will bring together high-quality research articles on the different aspects of nanofibrous membranes, including the current status and remaining challenges. Topics include but not are limited to:

  • Nanofibrous membranes for wastewater treatment;
  • Nanofibrous membranes for gas purification;
  • Nanofibrous membranes for environmental protection;
  • Nanofibrous materials for resource recycling;
  • Development of novel nanofibrous membrane;
  • Theoretical and experimental investigation for nanofibrous membrane production process design;

Sustainable and environmentally friendly device construction, energy conversion and utilization, such as green and environmentally friendly systems through nanofibrous membranes.

Prof. Dr. Wei Wang
Dr. Zhigao Zhu
Dr. Ying Xu
Guest Editors

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Keywords

  • nanofibrous membrane
  • environmental remediation
  • membrane separation
  • wastewater treatment

Published Papers (2 papers)

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Research

9 pages, 2152 KiB  
Article
In Situ Fenton Triggered PDA Coating Copper Mesh with Underwater Superoleophobic Property for Oily Wastewater Pretreatment
by Ying Xu, Wei Wang, Zhigao Zhu and Bin Xu
Processes 2021, 9(9), 1665; https://doi.org/10.3390/pr9091665 - 15 Sep 2021
Cited by 1 | Viewed by 2066
Abstract
The issue of oily wastewater treatment has become a worldwide challenge due to increasing industrial oily wastewater and frequent oil spill accidents. As an integral part of practical sewage treatment, pretreatment is conducted to remove inorganic particles, floating oil, and some emulsified oil, [...] Read more.
The issue of oily wastewater treatment has become a worldwide challenge due to increasing industrial oily wastewater and frequent oil spill accidents. As an integral part of practical sewage treatment, pretreatment is conducted to remove inorganic particles, floating oil, and some emulsified oil, and to pave the way for post-treatment. Here, we report a facile fabricated, hydrostable, and rapid underwater-formed superoleophobic copper mesh with polydopamine (PDA) coating for efficient oily wastewater pre-treatment. Unlike with traditional technologies, using the interface phenomenon to solve the problem of oil/water mixture separation provided a new approach for the low energy input pretreatment process. The PDA coating formed by the in situ Fenton method not only rapidly constructs a protection layer for the etched hierarchical micro-size particles on mesh and results in enhanced hydrophilicity, but also exhibits high uniformity and enhanced stability in acid/alkali medium. Benefiting from the above processes, a very high flux of 25 L m−2 s−1 and high separation efficiency of 99.0% toward various oil/water mixtures were achieved, revealing excellent prospects for practical usage. Therefore, this new approach offered insight into the development of a cost-effective and functional method for efficient pretreatment of oily wastewater. Full article
(This article belongs to the Special Issue Functional Nanofibrous Membrane for Environmental Remediation)
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12 pages, 3390 KiB  
Article
RSM-Based Preparation and Photoelectrocatalytic Performance Study of RGO/TiO2 NTs Photoelectrode
by Jinlong Zuo, Siying Yuan, Yiwen Li, Chong Tan, Zhi Xia, Shaodong Yang, Shiyou Yu and Junsheng Li
Processes 2021, 9(9), 1492; https://doi.org/10.3390/pr9091492 - 25 Aug 2021
Cited by 2 | Viewed by 1775
Abstract
In this paper, reduced graphene oxide (RGO) was prepared by a modified Hummers method and chemical reduction method, and an RGO/TiO2 NTs (RGO/TiO2 nanotubes) photoelectrode was prepared by the electrochemical deposition method. The as-prepared RGO/TiO2 NTs were analyzed by scanning [...] Read more.
In this paper, reduced graphene oxide (RGO) was prepared by a modified Hummers method and chemical reduction method, and an RGO/TiO2 NTs (RGO/TiO2 nanotubes) photoelectrode was prepared by the electrochemical deposition method. The as-prepared RGO/TiO2 NTs were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD), and their photocatalytic activities were investigated by measuring the degradation of methylene blue (MB) under simulated solar light irradiation. The SEM and XRD results indicated that the original tubular structure of TiO2-NTs was not changed after RGO modification. The surface of the TiO2 NTs photoelectrode was covered with a non-uniform, flake-shaped reduced graphene oxide film. The thickness of the RGO/TiO2 NTs was increased to about 22.60 nm. The impedance of the RGO/TiO2 NTs was smaller than that of the TiO2 NT photoelectrode. The optimal preparation conditions of RGO/TiO2 NT photoelectrodes were investigated by using a single factor method and response surface method. The best preparation conditions were as follows: deposition potential at 1.19 V, deposition time of 10.27 min, and deposition temperature at 24.94 °C. Full article
(This article belongs to the Special Issue Functional Nanofibrous Membrane for Environmental Remediation)
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