Significantly accelerated PEC degradation of organic pollutant with addition of sulfite and mechanism study

Aziz Ur Rahim Bacha; Hanyun Cheng; Jin Han; Iqra Nabi; Kejian Li; Tao Wang; Yang Yang; Saira Ajmal; Yangyang Liu; Liwu Zhang

doi:10.1016/j.apcatb.2019.02.049

Significantly accelerated PEC degradation of organic pollutant with addition of sulfite and mechanism study

Aziz Ur Rahim Bacha
, Hanyun Cheng
, Jin Han
, Iqra Nabi
, Kejian Li
, Tao Wang
, Yang Yang
, Saira Ajmal
, Yangyang Liu
, Liwu Zhang^*

^*Corresponding author for this work

Fudan University
Tongji University

Research output: Contribution to journal › Article › peer-review

75 Scopus citations

Abstract

Visible-light-driven photoelectrochemical (PEC) catalysis has been widely studied as a promising technique for the degradation of organic pollutants in wastewater. Herein, we report a sulfite-enhanced PEC degradation process for the degradation of organic pollutant. The degradation rate was significantly enhanced by ～30 times with the addition of 16 mM sulfite. The Electron Spin Resonance (ESR), Transient Absorption (TA) and hole scavenger studies showed that sulfite radicals (SO₃^⦁-) were the main reactive species in the reactions. The pollutant degradation pathway was studied by in-situ techniques and mass spectrometer, showing that the sulfite addition can promote the cleavage of aromatic ring C–C bond and C–N bond.

Original language	English
Pages (from-to)	441-449
Number of pages	9
Journal	Applied Catalysis B: Environmental
Volume	248
DOIs	https://doi.org/10.1016/j.apcatb.2019.02.049
State	Published - 5 Jul 2019
Externally published	Yes

Keywords

BiVO
Methyl orange
NaSO
PEC

Access to Document

10.1016/j.apcatb.2019.02.049

Cite this

@article{46bc3309e3424827a607492abb59e53e,

title = "Significantly accelerated PEC degradation of organic pollutant with addition of sulfite and mechanism study",

abstract = "Visible-light-driven photoelectrochemical (PEC) catalysis has been widely studied as a promising technique for the degradation of organic pollutants in wastewater. Herein, we report a sulfite-enhanced PEC degradation process for the degradation of organic pollutant. The degradation rate was significantly enhanced by ～30 times with the addition of 16 mM sulfite. The Electron Spin Resonance (ESR), Transient Absorption (TA) and hole scavenger studies showed that sulfite radicals (SO3 ⦁-) were the main reactive species in the reactions. The pollutant degradation pathway was studied by in-situ techniques and mass spectrometer, showing that the sulfite addition can promote the cleavage of aromatic ring C–C bond and C–N bond.",

keywords = "BiVO, Methyl orange, NaSO, PEC",

author = "Bacha, \{Aziz Ur Rahim\} and Hanyun Cheng and Jin Han and Iqra Nabi and Kejian Li and Tao Wang and Yang Yang and Saira Ajmal and Yangyang Liu and Liwu Zhang",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = jul,

day = "5",

doi = "10.1016/j.apcatb.2019.02.049",

language = "英语",

volume = "248",

pages = "441--449",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Significantly accelerated PEC degradation of organic pollutant with addition of sulfite and mechanism study

AU - Bacha, Aziz Ur Rahim

AU - Cheng, Hanyun

AU - Han, Jin

AU - Nabi, Iqra

AU - Li, Kejian

AU - Wang, Tao

AU - Yang, Yang

AU - Ajmal, Saira

AU - Liu, Yangyang

AU - Zhang, Liwu

PY - 2019/7/5

Y1 - 2019/7/5

N2 - Visible-light-driven photoelectrochemical (PEC) catalysis has been widely studied as a promising technique for the degradation of organic pollutants in wastewater. Herein, we report a sulfite-enhanced PEC degradation process for the degradation of organic pollutant. The degradation rate was significantly enhanced by ～30 times with the addition of 16 mM sulfite. The Electron Spin Resonance (ESR), Transient Absorption (TA) and hole scavenger studies showed that sulfite radicals (SO3 ⦁-) were the main reactive species in the reactions. The pollutant degradation pathway was studied by in-situ techniques and mass spectrometer, showing that the sulfite addition can promote the cleavage of aromatic ring C–C bond and C–N bond.

AB - Visible-light-driven photoelectrochemical (PEC) catalysis has been widely studied as a promising technique for the degradation of organic pollutants in wastewater. Herein, we report a sulfite-enhanced PEC degradation process for the degradation of organic pollutant. The degradation rate was significantly enhanced by ～30 times with the addition of 16 mM sulfite. The Electron Spin Resonance (ESR), Transient Absorption (TA) and hole scavenger studies showed that sulfite radicals (SO3 ⦁-) were the main reactive species in the reactions. The pollutant degradation pathway was studied by in-situ techniques and mass spectrometer, showing that the sulfite addition can promote the cleavage of aromatic ring C–C bond and C–N bond.

KW - BiVO

KW - Methyl orange

KW - NaSO

KW - PEC

UR - https://www.scopus.com/pages/publications/85061937664

U2 - 10.1016/j.apcatb.2019.02.049

DO - 10.1016/j.apcatb.2019.02.049

M3 - 文章

AN - SCOPUS:85061937664

SN - 0926-3373

VL - 248

SP - 441

EP - 449

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

ER -

Significantly accelerated PEC degradation of organic pollutant with addition of sulfite and mechanism study

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this