Efficient removal of trichloroethene in oxidative environment by anchoring nano FeS on reduced graphene oxide supported nZVI catalyst: The role of FeS on oxidant decomposition and iron leakage

Yong Sun; Mengbin Gu; Shuguang Lyu; Mark L. Brusseau; Ming Li; Yanchen Lyu; Yunfei Xue; Zhaofu Qiu; Qian Sui

doi:10.1016/j.jhazmat.2020.122328

Efficient removal of trichloroethene in oxidative environment by anchoring nano FeS on reduced graphene oxide supported nZVI catalyst: The role of FeS on oxidant decomposition and iron leakage

Yong Sun, Mengbin Gu, Shuguang Lyu, Mark L. Brusseau, Ming Li, Yanchen Lyu, Yunfei Xue, Zhaofu Qiu, Qian Sui

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

22 Scopus citations

Abstract

The performance of trichloroethene (TCE) removal was initially investigated in sodium persulfate (SPS) or potassium monopersulfate triple salt (PMS) oxidative environment by reduced graphene oxide (rGO) supported nZVI (nZVI-rGO) catalyst and further the role of sulphur by anchoring nano FeS on nZVI-rGO (FeS@nZVI-rGO) was evaluated. The high usage of oxidants and stability of FeS@nZVI-rGO catalyst were significantly improved due to the insoluble nature of this innovative catalyst by involvement of nano FeS which limited the rapid iron loss caused by the corrosion of active sites and mitigated rapid oxidants decomposition in FeS@nZVI-rGO/SPS and FeS@nZVI-rGO/PMS systems. The tests for target contaminant removal showed that over 95 % TCE could be removed at 100 mg L⁻¹ FeS@nZVI-rGO and 1.2 mM SPS or 0.3 mM PMS dosages, in which over 85 % TCE could be dechlorinated. The reactive oxygen radicals (ROSs) generation mechanisms and their contribution to TCE removal were investigated through radical scavenge tests in both systems, indicating that both HO^[rad] and SO₄⁻^[rad] were the major ROSs rather than O₂⁻^[rad]. In conclusion, this study revealed the well function and fundamental mechanism of this innovative catalyst by anchoring nano FeS and worth of further demonstration of this technique in TCE contaminated groundwater remediation application.

Original language	English (US)
Article number	122328
Journal	Journal of Hazardous Materials
Volume	392
DOIs	https://doi.org/10.1016/j.jhazmat.2020.122328
State	Published - Jun 15 2020

Keywords

Catalysis
FeS@nZVI-rGO
Groundwater remediation
Oxidation
Trichloroethene

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.jhazmat.2020.122328

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Sun, Y., Gu, M., Lyu, S., Brusseau, M. L., Li, M., Lyu, Y., Xue, Y., Qiu, Z., & Sui, Q. (2020). Efficient removal of trichloroethene in oxidative environment by anchoring nano FeS on reduced graphene oxide supported nZVI catalyst: The role of FeS on oxidant decomposition and iron leakage. Journal of Hazardous Materials, 392, [122328]. https://doi.org/10.1016/j.jhazmat.2020.122328

Efficient removal of trichloroethene in oxidative environment by anchoring nano FeS on reduced graphene oxide supported nZVI catalyst : The role of FeS on oxidant decomposition and iron leakage. / Sun, Yong; Gu, Mengbin; Lyu, Shuguang et al.

In: Journal of Hazardous Materials, Vol. 392, 122328, 15.06.2020.

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

Sun, Y, Gu, M, Lyu, S, Brusseau, ML, Li, M, Lyu, Y, Xue, Y, Qiu, Z & Sui, Q 2020, 'Efficient removal of trichloroethene in oxidative environment by anchoring nano FeS on reduced graphene oxide supported nZVI catalyst: The role of FeS on oxidant decomposition and iron leakage', Journal of Hazardous Materials, vol. 392, 122328. https://doi.org/10.1016/j.jhazmat.2020.122328

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title = "Efficient removal of trichloroethene in oxidative environment by anchoring nano FeS on reduced graphene oxide supported nZVI catalyst: The role of FeS on oxidant decomposition and iron leakage",

abstract = "The performance of trichloroethene (TCE) removal was initially investigated in sodium persulfate (SPS) or potassium monopersulfate triple salt (PMS) oxidative environment by reduced graphene oxide (rGO) supported nZVI (nZVI-rGO) catalyst and further the role of sulphur by anchoring nano FeS on nZVI-rGO (FeS@nZVI-rGO) was evaluated. The high usage of oxidants and stability of FeS@nZVI-rGO catalyst were significantly improved due to the insoluble nature of this innovative catalyst by involvement of nano FeS which limited the rapid iron loss caused by the corrosion of active sites and mitigated rapid oxidants decomposition in FeS@nZVI-rGO/SPS and FeS@nZVI-rGO/PMS systems. The tests for target contaminant removal showed that over 95 % TCE could be removed at 100 mg L−1 FeS@nZVI-rGO and 1.2 mM SPS or 0.3 mM PMS dosages, in which over 85 % TCE could be dechlorinated. The reactive oxygen radicals (ROSs) generation mechanisms and their contribution to TCE removal were investigated through radical scavenge tests in both systems, indicating that both HO[rad] and SO4−[rad] were the major ROSs rather than O2−[rad]. In conclusion, this study revealed the well function and fundamental mechanism of this innovative catalyst by anchoring nano FeS and worth of further demonstration of this technique in TCE contaminated groundwater remediation application.",

keywords = "Catalysis, FeS@nZVI-rGO, Groundwater remediation, Oxidation, Trichloroethene",

author = "Yong Sun and Mengbin Gu and Shuguang Lyu and Brusseau, {Mark L.} and Ming Li and Yanchen Lyu and Yunfei Xue and Zhaofu Qiu and Qian Sui",

note = "Funding Information: This study was financially supported by the grant from the National Key R&D Program of China (No. 2018YFC1802500 ) and the International Academic Cooperation and Exchange Program of Shanghai Science and Technology Committee (NO. 18230722700 ). The contributions of Mark Brusseau were supported by the NIEHS Superfund Research Program ( PS 42 ES04940 ). Funding Information: This study was financially supported by the grant from the National Key R&D Program of China (No. 2018YFC1802500) and the International Academic Cooperation and Exchange Program of Shanghai Science and Technology Committee (NO. 18230722700). The contributions of Mark Brusseau were supported by the NIEHS Superfund Research Program (PS 42 ES04940). Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = jun,

day = "15",

doi = "10.1016/j.jhazmat.2020.122328",

language = "English (US)",

volume = "392",

journal = "Journal of Hazardous Materials",

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T1 - Efficient removal of trichloroethene in oxidative environment by anchoring nano FeS on reduced graphene oxide supported nZVI catalyst

T2 - The role of FeS on oxidant decomposition and iron leakage

AU - Sun, Yong

AU - Gu, Mengbin

AU - Lyu, Shuguang

AU - Brusseau, Mark L.

AU - Li, Ming

AU - Lyu, Yanchen

AU - Xue, Yunfei

AU - Qiu, Zhaofu

AU - Sui, Qian

N1 - Funding Information: This study was financially supported by the grant from the National Key R&D Program of China (No. 2018YFC1802500 ) and the International Academic Cooperation and Exchange Program of Shanghai Science and Technology Committee (NO. 18230722700 ). The contributions of Mark Brusseau were supported by the NIEHS Superfund Research Program ( PS 42 ES04940 ). Funding Information: This study was financially supported by the grant from the National Key R&D Program of China (No. 2018YFC1802500) and the International Academic Cooperation and Exchange Program of Shanghai Science and Technology Committee (NO. 18230722700). The contributions of Mark Brusseau were supported by the NIEHS Superfund Research Program (PS 42 ES04940). Publisher Copyright: © 2020 Elsevier B.V.

PY - 2020/6/15

Y1 - 2020/6/15

N2 - The performance of trichloroethene (TCE) removal was initially investigated in sodium persulfate (SPS) or potassium monopersulfate triple salt (PMS) oxidative environment by reduced graphene oxide (rGO) supported nZVI (nZVI-rGO) catalyst and further the role of sulphur by anchoring nano FeS on nZVI-rGO (FeS@nZVI-rGO) was evaluated. The high usage of oxidants and stability of FeS@nZVI-rGO catalyst were significantly improved due to the insoluble nature of this innovative catalyst by involvement of nano FeS which limited the rapid iron loss caused by the corrosion of active sites and mitigated rapid oxidants decomposition in FeS@nZVI-rGO/SPS and FeS@nZVI-rGO/PMS systems. The tests for target contaminant removal showed that over 95 % TCE could be removed at 100 mg L−1 FeS@nZVI-rGO and 1.2 mM SPS or 0.3 mM PMS dosages, in which over 85 % TCE could be dechlorinated. The reactive oxygen radicals (ROSs) generation mechanisms and their contribution to TCE removal were investigated through radical scavenge tests in both systems, indicating that both HO[rad] and SO4−[rad] were the major ROSs rather than O2−[rad]. In conclusion, this study revealed the well function and fundamental mechanism of this innovative catalyst by anchoring nano FeS and worth of further demonstration of this technique in TCE contaminated groundwater remediation application.

AB - The performance of trichloroethene (TCE) removal was initially investigated in sodium persulfate (SPS) or potassium monopersulfate triple salt (PMS) oxidative environment by reduced graphene oxide (rGO) supported nZVI (nZVI-rGO) catalyst and further the role of sulphur by anchoring nano FeS on nZVI-rGO (FeS@nZVI-rGO) was evaluated. The high usage of oxidants and stability of FeS@nZVI-rGO catalyst were significantly improved due to the insoluble nature of this innovative catalyst by involvement of nano FeS which limited the rapid iron loss caused by the corrosion of active sites and mitigated rapid oxidants decomposition in FeS@nZVI-rGO/SPS and FeS@nZVI-rGO/PMS systems. The tests for target contaminant removal showed that over 95 % TCE could be removed at 100 mg L−1 FeS@nZVI-rGO and 1.2 mM SPS or 0.3 mM PMS dosages, in which over 85 % TCE could be dechlorinated. The reactive oxygen radicals (ROSs) generation mechanisms and their contribution to TCE removal were investigated through radical scavenge tests in both systems, indicating that both HO[rad] and SO4−[rad] were the major ROSs rather than O2−[rad]. In conclusion, this study revealed the well function and fundamental mechanism of this innovative catalyst by anchoring nano FeS and worth of further demonstration of this technique in TCE contaminated groundwater remediation application.

KW - Catalysis

KW - FeS@nZVI-rGO

KW - Groundwater remediation

KW - Oxidation

KW - Trichloroethene

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ER -

Efficient removal of trichloroethene in oxidative environment by anchoring nano FeS on reduced graphene oxide supported nZVI catalyst: The role of FeS on oxidant decomposition and iron leakage

Abstract

Keywords

ASJC Scopus subject areas

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