Single-atom catalysis in advanced oxidation processes for environmental remediation
Emerging single atom catalysts (SACs), especially carbon-based SACs are appealing materials in environmental catalysis because of their ultrahigh performances, environmental friendliness, structural/chemical robustness, and the maximum utilization of active metal sites. The metal centres, carbon mat...
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| Published in | Chemical Society reviews Vol. 5; no. 8; pp. 5281 - 5322 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | English |
| Published |
England
Royal Society of Chemistry
26.04.2021
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| Subjects | |
| Online Access | Get full text |
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| Summary: | Emerging single atom catalysts (SACs), especially carbon-based SACs are appealing materials in environmental catalysis because of their ultrahigh performances, environmental friendliness, structural/chemical robustness, and the maximum utilization of active metal sites. The metal centres, carbon matrixes, and coordination characteristics collectively determine the electronic features of carbon-based SACs, and their behaviours in catalysing peroxide activation and efficiencies in advanced oxidation processes (AOPs). However, there is lack of a comprehensive and critical review reporting the successful marriage of carbon-based SACs in AOP-based remediation technologies. It is particularly necessary to systematically compare and reveal the catalytic sites and the associated mechanisms of carbon-based SACs in diverse AOP systems. In this review, we highlight the synthetic strategies, characterisation, and computation of carbon-based SACs, and for the first time, showcase their innovative applications in AOP technologies. We unveil the origins of versatile catalytic oxidation pathways in different AOP systems and the mechanisms of micropollutant degradation over carbon-based SACs, distinguished from the upsized counterparts (metals/oxides and carbon substrates). We also provide directions to the rational design of on-demand SACs for green chemistry and environmental sustainability. Also, we suggest a designated and integrated experimental/theoretical protocol for revealing the structure-catalysis relations of SACs in AOP applications, and propose the prospects for future opportunities and challenges.
This review presents the recent advances in synthetic strategies, characterisation, and computations of carbon-based single-atom catalysts, as well as their innovative applications and mechanisms in advanced oxidation technologies. |
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| Bibliography: | Shaobin Wang obtained BSc and MSc from Peking University (China) and PhD from the University of Queensland (Australia). He is a professor in the School of Chemical Engineering and Advanced Materials, the University of Adelaide. His research interests focus on synthesis and application of nanomaterials, carbon dioxide utilization, energy conversion, and environmental remediation. He is a Highly Cited Researcher in Engineering for 2016-2019 and in Engineering & Chemistry for 2020. He was recognized as Australian Lifetime Achievers Leaderboard-Top 40 Research Superstars by The Australian newspaper. Yanan Shang received his BSc at Environmental Engineering from Taiyuan Institute of Technology in 2016. He is currently a PhD student at Shandong University. His research focuses on the design, synthesis, and DFT calculations of effective catalysts toward environmental remediation. Xiaoguang Duan received his PhD in Chemical Engineering from Curtin University. He currently works as an ARC DECRA Fellow at the School of Chemical Engineering and Advanced Materials, the University of Adelaide. His research focuses on development of functional materials, advanced oxidation technologies, and environmental catalysis. He has received several prestigious awards such as ACS Catalysis Early Career Researcher Award, ARC Discovery Early Career Research Award, and Australian Research Top 40 Rising Stars. He was recognized as Clarivate Analytics Highly Cited Researcher in 2020. Baoyu Gao is currently a distinguished professor at Shandong University, and a distinguished Taishan Scholar of Shandong Province, China. He obtained his PhD degree in Environmental Engineering from Tsinghua University in 1999. Dr Gao's research has mainly focused on the functional materials, chemicals and technologies for water and wastewater treatment. He has coauthored over 800 peer-reviewed journal papers and more than 90 patents, and has received more than 20 awards from international, national, ministerial and provincial government organisations. He was honored as the Highly-Cited Scholar of China by Elsevier for 2014-2019. Xing Xu is an associate Professor of Environmental Science and Engineering at Shandong University. He received his MSc and PhD from Shandong University in 2009 and 2014. Professor Xu's main research interests include environmental functional materials, chemicals and technologies for water and wastewater treatment. He has published more than 100 journal articles and 2 book chapters on the fabrication of environmental functional materials and water treatment. |
| ISSN: | 0306-0012 1460-4744 |
| DOI: | 10.1039/d0cs01032d |