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Different role of bisulfite/sulfite in UVC-S(IV)-O2 system for arsenite oxidation in water. / Luo, Tao; Wang, Zhenhua; Wang, Yi et al.

In: Molecules, Vol. 24, No. 12, 2307, 21.06.2019.

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

Harvard

Luo, T, Wang, Z, Wang, Y, Liu, Z & Pozdnyakov, IP 2019, 'Different role of bisulfite/sulfite in UVC-S(IV)-O2 system for arsenite oxidation in water', Molecules, vol. 24, no. 12, 2307. https://doi.org/10.3390/molecules24122307

APA

Luo, T., Wang, Z., Wang, Y., Liu, Z., & Pozdnyakov, I. P. (2019). Different role of bisulfite/sulfite in UVC-S(IV)-O2 system for arsenite oxidation in water. Molecules, 24(12), [2307]. https://doi.org/10.3390/molecules24122307

Vancouver

Luo T, Wang Z, Wang Y, Liu Z, Pozdnyakov IP. Different role of bisulfite/sulfite in UVC-S(IV)-O2 system for arsenite oxidation in water. Molecules. 2019 Jun 21;24(12):2307. doi: 10.3390/molecules24122307

Author

Luo, Tao ; Wang, Zhenhua ; Wang, Yi et al. / Different role of bisulfite/sulfite in UVC-S(IV)-O2 system for arsenite oxidation in water. In: Molecules. 2019 ; Vol. 24, No. 12.

BibTeX

@article{8d29384c7241435dae24139990afb719,
title = "Different role of bisulfite/sulfite in UVC-S(IV)-O2 system for arsenite oxidation in water",
abstract = "It is of interest to use UV-sulfite based processes to degrade pollutants in wastewater treatment process. In this work, arsenic (As(III)) has been selected as a target pollutant to verify the efficacy of such a hypothesized process. The results showed that As(III) was quickly oxidized by a UV-sulfite system at neutral or alkaline pH and especially at pH 9.5, which can be mainly attributed to the generated oxysulfur radicals. In laser flash photolysis (LFP) experiments (λex = 266 nm), the signals of SO3 •− and eaq − generated by photolysis of sulfite at 266 nm were discerned. Quantum yields for photoionization of HSO3 − (0.01) and SO3 2− (0.06) were also measured. It has been established that eaq − does not react with SO3 2−, but reacts with HSO3 − with a rate constant 8 × 107 M−1s−1.",
keywords = "Arsenic, Laser flash photolysis, Oxysulfur radicals, Quantum yields, Sulfite photolysis, ACID, S(IV), oxysulfur radicals, BEHAVIOR, quantum yields, arsenic, laser flash photolysis, RADICAL-ANIONS, REDUCTIVE DEFLUORINATION, SPECTROSCOPY, KINETICS, DEGRADATION, SPECTRA, sulfite photolysis, PHOTOOXIDATION",
author = "Tao Luo and Zhenhua Wang and Yi Wang and Zizheng Liu and Pozdnyakov, {Ivan P.}",
year = "2019",
month = jun,
day = "21",
doi = "10.3390/molecules24122307",
language = "English",
volume = "24",
journal = "Molecules",
issn = "1420-3049",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "12",

}

RIS

TY - JOUR

T1 - Different role of bisulfite/sulfite in UVC-S(IV)-O2 system for arsenite oxidation in water

AU - Luo, Tao

AU - Wang, Zhenhua

AU - Wang, Yi

AU - Liu, Zizheng

AU - Pozdnyakov, Ivan P.

PY - 2019/6/21

Y1 - 2019/6/21

N2 - It is of interest to use UV-sulfite based processes to degrade pollutants in wastewater treatment process. In this work, arsenic (As(III)) has been selected as a target pollutant to verify the efficacy of such a hypothesized process. The results showed that As(III) was quickly oxidized by a UV-sulfite system at neutral or alkaline pH and especially at pH 9.5, which can be mainly attributed to the generated oxysulfur radicals. In laser flash photolysis (LFP) experiments (λex = 266 nm), the signals of SO3 •− and eaq − generated by photolysis of sulfite at 266 nm were discerned. Quantum yields for photoionization of HSO3 − (0.01) and SO3 2− (0.06) were also measured. It has been established that eaq − does not react with SO3 2−, but reacts with HSO3 − with a rate constant 8 × 107 M−1s−1.

AB - It is of interest to use UV-sulfite based processes to degrade pollutants in wastewater treatment process. In this work, arsenic (As(III)) has been selected as a target pollutant to verify the efficacy of such a hypothesized process. The results showed that As(III) was quickly oxidized by a UV-sulfite system at neutral or alkaline pH and especially at pH 9.5, which can be mainly attributed to the generated oxysulfur radicals. In laser flash photolysis (LFP) experiments (λex = 266 nm), the signals of SO3 •− and eaq − generated by photolysis of sulfite at 266 nm were discerned. Quantum yields for photoionization of HSO3 − (0.01) and SO3 2− (0.06) were also measured. It has been established that eaq − does not react with SO3 2−, but reacts with HSO3 − with a rate constant 8 × 107 M−1s−1.

KW - Arsenic

KW - Laser flash photolysis

KW - Oxysulfur radicals

KW - Quantum yields

KW - Sulfite photolysis

KW - ACID

KW - S(IV)

KW - oxysulfur radicals

KW - BEHAVIOR

KW - quantum yields

KW - arsenic

KW - laser flash photolysis

KW - RADICAL-ANIONS

KW - REDUCTIVE DEFLUORINATION

KW - SPECTROSCOPY

KW - KINETICS

KW - DEGRADATION

KW - SPECTRA

KW - sulfite photolysis

KW - PHOTOOXIDATION

UR - http://www.scopus.com/inward/record.url?scp=85068188225&partnerID=8YFLogxK

U2 - 10.3390/molecules24122307

DO - 10.3390/molecules24122307

M3 - Article

C2 - 31234408

AN - SCOPUS:85068188225

VL - 24

JO - Molecules

JF - Molecules

SN - 1420-3049

IS - 12

M1 - 2307

ER -

ID: 20709473