Chinese Journal of Catalysis ›› 2023, Vol. 55: 20-43.DOI: 10.1016/S1872-2067(23)64553-X

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Recent advances in the development of bismuth-based materials for the photocatalytic reduction of hexavalent chromium in water

Yang Suna, Jan E. Szulejkoa, Ki-Hyun Kima,*(), Vanish Kumarb,*(), Xiaowei Lic,*()   

  1. aDepartment of Civil and Environmental Engineering, Hanyang University, Seoul 04673, Korea
    bNational Agri-Food Biotechnology Institute (NABI), S.A.S. Nagar, Punjab 140306, India
    cSchool of Environmental and Chemical Engineering, Organic Compound Pollution Control Engineering, Ministry of Education, Shanghai University, Shanghai 200444, China
  • Received:2023-08-13 Accepted:2023-10-11 Online:2023-12-18 Published:2023-12-07
  • Contact: *E-mail: kkim61@hanyang.ac.kr (K.-H. Kim), vanish.saini01@gmail.com (V. Kumar), lixiaowei419@shu.edu.cn (X. Li).
  • About author:Prof. Ki-Hyun Kim was at Florida State University for an M.S. (1984‒1986) and at University of South Florida for a Ph.D. (1988‒1992). He was a Research Associate at Oak Ridge National Laboratory, USA (1992 to 1994). He moved to Sang Ji University, Korea in 1995 and then joined Sejong University in 1999. In 2014, he moved to the Department of Civil & Environmental Engineering at Hanyang University. His research areas cover the various aspects of research to incorporate “Air Quality & Environmental Engineering” into “Material Engineering” with emphasis on Metal-Organic Frameworks (MOFs). He was awarded as one of the top 10 National Star Faculties in Korea in 2006 and became an academician (Korean Academy of Science and Technology) in 2018. He has been recognized as ‘Highly Cited Researcher (HCR)’ in dual fields of ‘Environment & Ecology’ and ‘Engineering’ from Clarivate Analytics. He is serving as associate editor of ‘Environmental Research’, Sensors’, and ‘Critical Reviews in Environmental Science & Technology’. He has published more than 980 articles, many of which are in leading scientific journals including Chemical Society Reviews, Progress in Material Science, Progress in Energy and Combustion Science, Chem, Nano Energy, Coordination Chemistry Reviews, Applied Catalysis B, and Chemical Engineering Journal.
    Dr. Vanish Kumar is presently working as Scientist at National Agri-Food Biotechnology Institute, Mohali, India. He has an M. Tech degree in nanoscience and nanotechnology. He completed his PhD (Engineering) from Academy of Scientific and Innovative Research (AcSIR) CSIR-CSIO, Chandigarh, India. His current areas of research include development of advanced nanostructures for sensing/removal of contaminants/pollutants and analytical applications of nanomaterials. He has published more than 90 research papers in reputed international journals.
    Xiaowei Li (School of Environmental and Chemical Engineering, Shanghai University) received his Ph.D degree in 2012 from Tongji University. From 2013 to 2015, he did postdoctoral research at Tongji University. Since 2016, he joined the faculty of Department of Environmental Science and Engineering, Shanghai University. His research interests currently focus on environmental risk and photocatalysis degradation of emerging pollutants (such as microplastics in wastewater and sewage sludge) and harmless treatment/resource utilization of organic waste (such as sewage sludge, food waste, and human excreta). He has coauthored more than 80 peer-reviewed journal articles.

Abstract:

abstract: Photocatalytic reduction (PCR) is an emerging option to treat hexavalent chromium (Cr(VI)) in aquatic systems. The lamellar bismuth (Bi)-based materials are recognized as a potential platform for PCR against Cr(VI) with enhanced light harvesting ability and tunable bandgap energy. The PCR mechanism of Bi-based materials against Cr(VI) has been explored in relation to the modification strategies (e.g., heterojunction, defect engineering, and doping) and to the process variables (e.g., solution pH and the type/quantity of additives). Performance evaluation of diverse Bi-based materials has also been made using a figure of merit (FoM) as the key metric for industrially relevant conditions. Accordingly, shuriken-shaped BiVO4 with average particle sizes of 5‒10 nm was recognized as the best performer with the highest FoM value (3.45 × 10-5 mol g-1 Wh-1). To scale up the utility of Bi-based materials against Cr(VI), further efforts should be directed toward drastic reduction of treatment costs for real-world applications, especially in terms of catalyst fabrication and energy consumption (due to poor quantum yield).

Key words: Photocatalyst, Chromium, Semiconductor, Bismuth, Figure of merit