Advanced Functional Materials for Environmental Catalysis, 2nd Edition

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".

Deadline for manuscript submissions: closed (20 January 2024) | Viewed by 2354

Special Issue Editors

School of Chemical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia
Interests: environmental catalysis; waste-to-resources; advanced oxidation processes
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Guest Editor
College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
Interests: advanced oxidation processes; water treatment; environmental catalysis; green catalysts
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Guest Editor
College of Resource and Environment, Southwest University, Chongqing 400716, China
Interests: advanced oxidation processes; electrochemical oxidation; electro-Fenton process; water treatment
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Special Issue Information

Dear Colleagues,

The journal Catalysts is launching a new Special Issue, entitled “Advanced Functional Materials for Environmental Catalysis, 2nd Edition.” Due to their remarkable properties, advanced functional materials, including metals, metallic oxides, conducting polymers, and carbon nanomaterials, have sparked tremendous interest in energy conversion and storage, environmental remediation, and catalytic fields over the last few decades. Despite the fact that the use of various functional materials in energy and environmental fields has been reported, there are still many challenges that must be addressed in order to develop advanced functional materials with high sensitivity, efficiency, and selectivity. The key factor to consider when designing an efficient functional material is sustainability.

It is with great pleasure that we invite you to submit your manuscript to this Special Issue to share research on fundamental and applied environmental catalysis related to novel methodologies, characterization, and mechanism studies. The topics covered in this Special Issue include, but are not limited to, the following:

  • Advanced oxidation processes (e.g., photocatalysis, electrocatalysis, electro-Fenton and persulfate/peroxymonosulfate oxidation);
  • Catalytic elimination of environmental pollutants;
  • Advanced water and wastewater treatment processes;
  • Nanotechnology;
  • Batteries and supercapacitors;
  • Hydrogen generation and storage;
  • Catalysis for recycling/reuse (e.g., microbial fuel cell techniques).

We welcome you to submit original contributions in the form of research articles, perspective articles, review articles, and short communications.

Dr. Oh Wen Da
Dr. Yueping Bao
Dr. Chong Wang
Guest Editors

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. Catalysts 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 2700 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 oxidation processes (e.g., photocatalysis, electrocatalysis, electro-Fenton and persul-fate/peroxymonosulfate oxidation)
  • environmental catalysis
  • catalytic elimination of environmental pollutants
  • batteries and supercapacitors
  • hydrogen generation and storage
  • catalysis for recycle/reuse (e.g., microbial fuel cell techniques)

Published Papers (2 papers)

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Research

13 pages, 5757 KiB  
Article
Cu/CuO-Decorated Peanut-Shell-Derived Biochar for the Efficient Degradation of Tetracycline via Peroxymonosulfate Activation
by Jianhui Zhao, Huan Li, Yuanzhou Wang, Jingjie Yu, Ning Li and Shaopo Wang
Catalysts 2023, 13(9), 1246; https://doi.org/10.3390/catal13091246 - 28 Aug 2023
Cited by 1 | Viewed by 906
Abstract
Biochar (BC) usually has abundant surface functional groups, well-developed pore structures and high specific surface areas, which can combine with transition metals for peroxymonosulfate (PMS) activation to degrade organics. In this paper, BC modified with Cu/CuO was prepared by a modified impregnation pyrolysis [...] Read more.
Biochar (BC) usually has abundant surface functional groups, well-developed pore structures and high specific surface areas, which can combine with transition metals for peroxymonosulfate (PMS) activation to degrade organics. In this paper, BC modified with Cu/CuO was prepared by a modified impregnation pyrolysis method using peanut shells as raw materials. The morphology, structure and physicochemical properties were analyzed. Results showed that the originally smooth BC surface was modified into a rough structure with distributed metal particles, and the specific surface area of the modified Cu/CuO-BC700 (i.e., Cu/CuO-BC) increased from the initial 22.57 to 192.64 m2/g. The Cu/CuO-BC was employed for PMS activation and tetracycline (TC) degradation, achieving a removal efficiency of 93.2% at TC initial concentration 20 mg/L, PMS concentration 0.5 mM and catalyst dosage 0.1 g/L after 30 min. The influence of co-existing anions in the actual water on TC degradation followed the order of HCO3 > H2PO4 > Cl, and HA had an inhibitory effect on TC degradation. A variety of active species participated in TC degradation, and the free radical pathway played a dominant role. Furthermore, the Cu/CuO-BC could maintain the degradation efficiency of TC up to 80% even after five consecutive cycles. The Cu/CuO-BC maintained high activity through redox reactions between catalytically generated active species and the cycling of metal ions (Cu+/Cu2+). Full article
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15 pages, 2388 KiB  
Article
A Recyclable Co-Fe Bimetallic Immobilized Cellulose Hydrogel Bead (CoFeO@CHB) to Boost Singlet Oxygen Evolution for Tetracycline Degradation
by Xinying Chen, He Zhang, Shizhe Xu, Xiaoge Du, Kaida Zhang, Chun-Po Hu, Sihui Zhan, Xueyue Mi, Wen Da Oh, Xiao Hu, Ziyong Pan and Yueping Bao
Catalysts 2023, 13(8), 1150; https://doi.org/10.3390/catal13081150 - 25 Jul 2023
Viewed by 1187
Abstract
In the current work, a novel Co-Fe bimetallic immobilized cellulose hydrogel bead (CoFeO@CHB) was prepared via in situ chemical precipitation followed by heat treatment and applied for tetracycline (TC) degradation in the presence of peroxymonosulfate (PMS). The characterization results indicated that the Co-Fe [...] Read more.
In the current work, a novel Co-Fe bimetallic immobilized cellulose hydrogel bead (CoFeO@CHB) was prepared via in situ chemical precipitation followed by heat treatment and applied for tetracycline (TC) degradation in the presence of peroxymonosulfate (PMS). The characterization results indicated that the Co-Fe particles were evenly distributed within the porous cellulose hydrogel beads, without affecting their morphologies or crystal structures. During the TC degradation, the CoFeO@CHB/PMS system showed a high resistance and stability to different water bodies, and the common anions and natural organic matters showed a limited effect on TC degradation. The chemical quenching experiments (using chemicals to react with specific reactive species) as well as electron paramagnetic resonance (EPR) results showed that CoFeO@CHB can effectively active PMS to generate multiple reactive oxygen species (ROS, such as SO4•−, OH and 1O2), in which the 1O2-dominated non-radical pathway played a vital role in TC degradation. Both Co and Fe were proposed as the active sites for PMS activation, and the CoFeO@CHB/PMS system showed a high potential in practical application due to its high selectivity and robustness with much less toxic intermediate products. Furthermore, a long-term continuous home-made dead-end filtration device was constructed to evaluate the stability and application potential of the CoFeO@CHB/PMS system, in which a >70% removal was maintained in a continuous 800 min filtration. These results showed the promising potential for cellulose hydrogel beads utilized as a metal-based nanomaterial substrate for organic degradation via PMS activation. Full article
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