PMID- 33515963
OWN - NLM
STAT- MEDLINE
DCOM- 20210427
LR  - 20210427
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 273
DP  - 2021 Jun
TI  - Construction of C@WS(2)/g-C(3)N(4) Z-scheme photocatalyst with C film as an 
      effective electron mediator and its enhanced degradation of 2,4-dichlorophenol 
      under visible light.
PG  - 129746
LID - S0045-6535(21)00215-0 [pii]
LID - 10.1016/j.chemosphere.2021.129746 [doi]
AB  - A novel Z-scheme heterojunction C@WS(2)/g-C(3)N(4) composite was prepared with 
      carbon as a bridge for improving the photocatalytic property. The results of 
      composition and structure studies demonstrate that the introduced carbon was 
      deposited on the surface of WS(2) with a film form in the ternary composites. The 
      analysis of optical and photo-electrochemical properties reveals that the carbon 
      film played as an electron-mediator in the ternary composites and could improve 
      the separation and transportation of photogenerated charge. Meanwhile, it could 
      change the pathway of photogenerated electrons between WS(2) and g-C(3)N(4), 
      thereby constructing a Z-scheme heterojunction for maintaining the redox ability 
      of photogenerated charge. The ternary 2%-C@WS(2)/g-C(3)N(4) composite exhibited 
      an excellent photodegradation rate towards 2,4-dichlorophenol (2,4-DCP) under 
      visible light irradiation, which was 3.15 and 3.06 times of the pure g-C(3)N(4) 
      and binary WS(2)/g-C(3)N(4) composite, respectively. Besides, the degradation 
      pathway of 2,4-DCP and photocatalytic degradation mechanisms were investigated 
      and discussed in detail. The generated .O(2)(-)(-), .OH and h(+) by ternary 
      composites could promote the dechlorination reaction of 2,4-DCP effectively and 
      decompose it into smaller organic molecules. This work extends the design of 
      g-C(3)N(4)-based 2D/2D heterojunction or Z-scheme photocatalysts to remediate the 
      environment.
CI  - Copyright (c) 2021 Elsevier Ltd. All rights reserved.
FAU - Wu, Shu
AU  - Wu S
AD  - MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion 
      and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of 
      Technology, Harbin, 150001, PR China.
FAU - Wang, Yan
AU  - Wang Y
AD  - MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion 
      and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of 
      Technology, Harbin, 150001, PR China. Electronic address: wangy_msn@hit.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20210122
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Chlorophenols)
RN  - R669TG1950 (2,4-dichlorophenol)
SB  - IM
MH  - Catalysis
MH  - Chlorophenols
MH  - *Electrons
MH  - *Light
MH  - Photolysis
OTO - NOTNLM
OT  - 2,4-dichlorophenol degradation
OT  - Carbon film
OT  - WS(2)
OT  - Z-scheme
OT  - g-C(3)N(4)
COIS- Declaration of competing interest We have no known competing financial interests 
      or personal relationships that could have appeared to influence the work reported 
      in this paper.
EDAT- 2021/01/31 06:00
MHDA- 2021/04/28 06:00
CRDT- 2021/01/30 20:12
PHST- 2020/10/09 00:00 [received]
PHST- 2020/12/30 00:00 [revised]
PHST- 2021/01/19 00:00 [accepted]
PHST- 2021/01/31 06:00 [pubmed]
PHST- 2021/04/28 06:00 [medline]
PHST- 2021/01/30 20:12 [entrez]
AID - S0045-6535(21)00215-0 [pii]
AID - 10.1016/j.chemosphere.2021.129746 [doi]
PST - ppublish
SO  - Chemosphere. 2021 Jun;273:129746. doi: 10.1016/j.chemosphere.2021.129746. Epub 
      2021 Jan 22.