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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...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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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). |
format | Online Article Text |
id | pubmed-9078249 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
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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