PMID- 34973576 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220131 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 427 DP - 2022 Apr 5 TI - Solar light photocatalytic transformation of heptachlorobiphenyl (PCB 180) using g-C(3)N(4) based magnetic porous photocatalyst. PG - 128105 LID - S0304-3894(21)03074-0 [pii] LID - 10.1016/j.jhazmat.2021.128105 [doi] AB - A novel porous core-shell magnetic beta-cyclodextrin/graphitic carbon nitride photocatalyst (Mbeta-CD/GCN) was synthesized and employed in a solar light driven catalytic system for the degradation of polychlorinated biphenyls (PCBs). The Mbeta-CD/GCN display superior photocatalytic performance on account of porous structure and ultrathin GCN nanosheets design, the former improves the utilization of visible light by multiple scattering and reflection of incident light, and the latter accelerates electron transfer. The ultrahigh specific surface area (1255 m(2) g(-1)) of Mbeta-CD/GCN provided a large number of active sites for adsorption and degradation of the target pollution. The pseudo-first order reaction rate constant (k(obs)) for the degradation of PCB180 by Mbeta-CD/GCN was 0.021 min(-1), which improved 3.23 times than the bulk GCN. Additionally, the effects of various reaction parameters and water matrices were studied on the degradation of PCB180. Three possible degradation pathways and mechanism of PCB180 were speculated according to the identification of reaction intermediates and detection of reactive species. The solar light driven Mbeta-CD/GCN catalytic technology is a promising method not only for the control of persistent organic pollutants (POPs), but also the catalyst could be recovered and reused through simple magnetic separation. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Wang, Hui AU - Wang H AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem, Harbin Institute of Technology, Harbin 150090, China. FAU - Zhang, Chenyu AU - Zhang C AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. FAU - Kong, Lingru AU - Kong L AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. FAU - Wang, Yi AU - Wang Y AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. FAU - Zhang, Sijia AU - Zhang S AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. FAU - Zhang, Xiulian AU - Zhang X AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. FAU - Ding, Jie AU - Ding J AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: dingjie123@hit.edu.cn. FAU - Ren, Nanqi AU - Ren N AD - State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: rnq@hit.edu.cn. LA - eng PT - Journal Article DEP - 20211229 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 SB - IM OTO - NOTNLM OT - GCN nanosheets OT - PCB180 OT - Photocatalyst OT - Porous structure OT - Solar light driven EDAT- 2022/01/02 06:00 MHDA- 2022/01/02 06:01 CRDT- 2022/01/01 20:19 PHST- 2021/10/27 00:00 [received] PHST- 2021/12/14 00:00 [revised] PHST- 2021/12/15 00:00 [accepted] PHST- 2022/01/02 06:00 [pubmed] PHST- 2022/01/02 06:01 [medline] PHST- 2022/01/01 20:19 [entrez] AID - S0304-3894(21)03074-0 [pii] AID - 10.1016/j.jhazmat.2021.128105 [doi] PST - ppublish SO - J Hazard Mater. 2022 Apr 5;427:128105. doi: 10.1016/j.jhazmat.2021.128105. Epub 2021 Dec 29.