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Surfactant-assisted hydrothermal synthesis of rGO/SnIn(4)S(8) nanosheets and their application in complete removal of Cr(vi)

To solve the problem of contamination of hexavalent chromium (Cr(vi)), visible-light-driven graphene-based ternary metal chalcogenide nanosheets (rGO/SnIn(4)S(8)) were synthesized via a one-pot surfactant-assisted hydrothermal method for the photoreduction of Cr(vi). Characterizations demonstrated t...

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Autores principales: Xu, Pingfan, Huang, Siyi, Lv, Yuancai, Chen, Yi, Liu, Minghua, Fan, Haojun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078249/
https://www.ncbi.nlm.nih.gov/pubmed/35539578
http://dx.doi.org/10.1039/c7ra12863k
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author Xu, Pingfan
Huang, Siyi
Lv, Yuancai
Chen, Yi
Liu, Minghua
Fan, Haojun
author_facet Xu, Pingfan
Huang, Siyi
Lv, Yuancai
Chen, Yi
Liu, Minghua
Fan, Haojun
author_sort Xu, Pingfan
collection PubMed
description To solve the problem of contamination of hexavalent chromium (Cr(vi)), visible-light-driven graphene-based ternary metal chalcogenide nanosheets (rGO/SnIn(4)S(8)) were synthesized via a one-pot surfactant-assisted hydrothermal method for the photoreduction of Cr(vi). Characterizations demonstrated that SnIn(4)S(8) nanosheets were uniformly distributed on the surface of rGO and the as-synthesized nanosheets exhibited excellent photocatalytic activity under visible light. In addition, the effects of pH, concentration of critic acid, holes and electron scavengers on the reduction of Cr(vi) were systematically investigated. It was found that 50 mg L(−1) of Cr(vi) could be completely removed within 30 min at pH 2 when citric acid served as a hole scavenger. Kinetic studies showed that the photocatalytic reduction of Cr(vi) processes obeyed the pseudo first order model. Further study indicated that the Cr(iii) species was immediately adsorbed onto the surface of the rGO/SnIn(4)S(8) nanosheets after photocatalytic reduction of Cr(vi). Additionally, recycling results suggested that rGO/SnIn(4)S(8) nanosheets possessed high recycle ability and stability after repeated use (5 times). This effective and promising work might provide a new strategy for the photoreduction of Cr(vi) and complete removal of chromium from effluent through the novel photocatalyst rGO/SnIn(4)S(8).
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spelling pubmed-90782492022-05-09 Surfactant-assisted hydrothermal synthesis of rGO/SnIn(4)S(8) nanosheets and their application in complete removal of Cr(vi) Xu, Pingfan Huang, Siyi Lv, Yuancai Chen, Yi Liu, Minghua Fan, Haojun RSC Adv Chemistry To solve the problem of contamination of hexavalent chromium (Cr(vi)), visible-light-driven graphene-based ternary metal chalcogenide nanosheets (rGO/SnIn(4)S(8)) were synthesized via a one-pot surfactant-assisted hydrothermal method for the photoreduction of Cr(vi). Characterizations demonstrated that SnIn(4)S(8) nanosheets were uniformly distributed on the surface of rGO and the as-synthesized nanosheets exhibited excellent photocatalytic activity under visible light. In addition, the effects of pH, concentration of critic acid, holes and electron scavengers on the reduction of Cr(vi) were systematically investigated. It was found that 50 mg L(−1) of Cr(vi) could be completely removed within 30 min at pH 2 when citric acid served as a hole scavenger. Kinetic studies showed that the photocatalytic reduction of Cr(vi) processes obeyed the pseudo first order model. Further study indicated that the Cr(iii) species was immediately adsorbed onto the surface of the rGO/SnIn(4)S(8) nanosheets after photocatalytic reduction of Cr(vi). Additionally, recycling results suggested that rGO/SnIn(4)S(8) nanosheets possessed high recycle ability and stability after repeated use (5 times). This effective and promising work might provide a new strategy for the photoreduction of Cr(vi) and complete removal of chromium from effluent through the novel photocatalyst rGO/SnIn(4)S(8). The Royal Society of Chemistry 2018-02-02 /pmc/articles/PMC9078249/ /pubmed/35539578 http://dx.doi.org/10.1039/c7ra12863k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Xu, Pingfan
Huang, Siyi
Lv, Yuancai
Chen, Yi
Liu, Minghua
Fan, Haojun
Surfactant-assisted hydrothermal synthesis of rGO/SnIn(4)S(8) nanosheets and their application in complete removal of Cr(vi)
title Surfactant-assisted hydrothermal synthesis of rGO/SnIn(4)S(8) nanosheets and their application in complete removal of Cr(vi)
title_full Surfactant-assisted hydrothermal synthesis of rGO/SnIn(4)S(8) nanosheets and their application in complete removal of Cr(vi)
title_fullStr Surfactant-assisted hydrothermal synthesis of rGO/SnIn(4)S(8) nanosheets and their application in complete removal of Cr(vi)
title_full_unstemmed Surfactant-assisted hydrothermal synthesis of rGO/SnIn(4)S(8) nanosheets and their application in complete removal of Cr(vi)
title_short Surfactant-assisted hydrothermal synthesis of rGO/SnIn(4)S(8) nanosheets and their application in complete removal of Cr(vi)
title_sort surfactant-assisted hydrothermal synthesis of rgo/snin(4)s(8) nanosheets and their application in complete removal of cr(vi)
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078249/
https://www.ncbi.nlm.nih.gov/pubmed/35539578
http://dx.doi.org/10.1039/c7ra12863k
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