PMID- 36444064
OWN - NLM
STAT- MEDLINE
DCOM- 20221130
LR  - 20221207
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 443
IP  - Pt B
DP  - 2023 Feb 5
TI  - Activation of chloride by oxygen vacancies-enriched TiO(2) photoanode for 
      efficient photoelectrochemical treatment of persistent organic pollutants and 
      simultaneous H(2) generation.
PG  - 130363
LID - S0304-3894(22)02157-4 [pii]
LID - 10.1016/j.jhazmat.2022.130363 [doi]
AB  - Photoelectrochemical (PEC) activation of chloride ions (Cl(-)) to degrade 
      persistent organic pollutants (POPs) is a promising strategy for the treatment of 
      industrial saline organic wastewater. However, the wide application of this 
      technology is greatly restricted due to the general photoanode activation of 
      Cl(-) with poor capability, the propensity to produce toxic by-products 
      chlorates, and the narrow pH range. Herein, oxygen vacancies-enriched titanium 
      dioxide (O(v)-TiO(2)) photoanode is explored to strongly activate Cl(-) to drive 
      the deep mineralization of POPs wastewater in a wide pH range (2-12) with 
      simultaneous production of H(2). More importantly, nearly no toxic by-product of 
      chlorates was produced during such PEC-Cl system. The degradation efficiency of 
      4-CP and H(2) generation rate by O(v)-TiO(2) were 99.9% within 60 min and 198.2 
      mumol h(-1) cm(-2), respectively, which are far superior to that on the TiO(2) 
      (33.1% within 60 min, 27.5 mumol h(-1) cm(-2)) working electrode. DFT calculation 
      and capture experiments revealed that O(v)-TiO(2) with abundant oxygen vacancies 
      is conducive to the activation of Cl(-) to produce more reactive chlorine 
      species, evidenced by its high production of free chlorine (48.7 mg L(-1) vs 
      7.5 mg L(-1) of TiO(2)). The as-designed PEC-Cl system in this work is expected 
      to realize the purification of industrial saline organic wastewater coupling with 
      green energy H(2) evolution.
CI  - Copyright (c) 2022 Elsevier B.V. All rights reserved.
FAU - Wu, Jiabao
AU  - Wu J
AD  - School of Environmental and Geographical Sciences, Shanghai Normal University, 
      Shanghai 200234, PR China.
FAU - Tao, Ying
AU  - Tao Y
AD  - School of Environmental and Geographical Sciences, Shanghai Normal University, 
      Shanghai 200234, PR China.
FAU - Zhang, Chi
AU  - Zhang C
AD  - School of Environmental and Geographical Sciences, Shanghai Normal University, 
      Shanghai 200234, PR China.
FAU - Zhu, Qiong
AU  - Zhu Q
AD  - School of Environmental and Geographical Sciences, Shanghai Normal University, 
      Shanghai 200234, PR China.
FAU - Zhang, Dieqing
AU  - Zhang D
AD  - The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of 
      Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR 
      China. Electronic address: dqzhang@shnu.edu.cn.
FAU - Li, Guisheng
AU  - Li G
AD  - The Education Ministry Key Lab of Resource Chemistry, Shanghai Key Laboratory of 
      Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, PR 
      China; School of Environmental and Geographical Sciences, Shanghai Normal 
      University, Shanghai 200234, PR China; School of Materials and Chemistry, 
      University of Shanghai for Science and Technology, Shanghai 200093, PR China. 
      Electronic address: liguisheng@shnu.edu.cn.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20221109
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Chlorides)
RN  - 0 (Persistent Organic Pollutants)
RN  - 15FIX9V2JP (titanium dioxide)
RN  - 0 (Chlorates)
RN  - 4R7X1O2820 (Chlorine)
RN  - S88TT14065 (Oxygen)
RN  - 0 (Waste Water)
RN  - 0 (Halogens)
SB  - IM
MH  - *Chlorides
MH  - *Persistent Organic Pollutants
MH  - Chlorates
MH  - Chlorine
MH  - Oxygen
MH  - Wastewater
MH  - Halogens
OTO - NOTNLM
OT  - Industrial saline organic wastewater
OT  - Oxygen vacancies
OT  - Photoelectrochemical chlorine system
OT  - Reactive chlorine specie
OT  - Toxic by-product
COIS- Declaration of Competing Interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2022/11/30 06:00
MHDA- 2022/12/01 06:00
CRDT- 2022/11/29 01:09
PHST- 2022/09/05 00:00 [received]
PHST- 2022/11/06 00:00 [revised]
PHST- 2022/11/07 00:00 [accepted]
PHST- 2022/11/29 01:09 [entrez]
PHST- 2022/11/30 06:00 [pubmed]
PHST- 2022/12/01 06:00 [medline]
AID - S0304-3894(22)02157-4 [pii]
AID - 10.1016/j.jhazmat.2022.130363 [doi]
PST - ppublish
SO  - J Hazard Mater. 2023 Feb 5;443(Pt B):130363. doi: 10.1016/j.jhazmat.2022.130363. 
      Epub 2022 Nov 9.