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Preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts
Tungstovanadophosphoric heteropoly acid H(5)PW(10)V(2)O(40)·5.76H(2)O (HPWV) has been synthesized via stepwise acidification and gradual addition of elements. Some metals like Fe, Al and Cu were introduced into the heteropoly acid (HPA) in the molar ratio of 10 : 6, 10 : 6 and 10 : 4 respectively. T...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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The Royal Society of Chemistry
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064807/ https://www.ncbi.nlm.nih.gov/pubmed/35515250 http://dx.doi.org/10.1039/c9ra00652d |
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author | Ji, Dandan Xue, Rong Zhou, Maojuan Zhu, Ying Zhang, Fengshan Zang, Lihua |
author_facet | Ji, Dandan Xue, Rong Zhou, Maojuan Zhu, Ying Zhang, Fengshan Zang, Lihua |
author_sort | Ji, Dandan |
collection | PubMed |
description | Tungstovanadophosphoric heteropoly acid H(5)PW(10)V(2)O(40)·5.76H(2)O (HPWV) has been synthesized via stepwise acidification and gradual addition of elements. Some metals like Fe, Al and Cu were introduced into the heteropoly acid (HPA) in the molar ratio of 10 : 6, 10 : 6 and 10 : 4 respectively. The prepared catalysts were characterized by UV, FTIR, TG/DTA and XRD. The results indicated that HPWV and its metal salts all contain Keggin units, which are the primary structures of the heteropoly acids. The homogeneous photocatalytic degradation of phenol by heteropoly acid salts was studied in detail under artificial UV irradiation and addition of hydrogen peroxide (H(2)O(2)), and the effects of initial phenol and H(2)O(2) concentrations on the rate of photocatalytic phenol degradation were examined. The results suggested that the heteropoly acid salts showed good catalytic activities for phenol degradation via the ·OH radical mechanism. Under irradiation with a 10 W Hg lamp, 96% phenol was degraded within less than 60 min in the solution containing 50 mg L(−1) phenol + 2 μmol L(−1) Fe(5)(PW(10)V(2)O(40))(3) + 4 μmol L(−1) H(2)O(2), with the performance of the catalysts in order FePWV > AlPWV > CuPWV > HPWV. This work demonstrated that the photo-Fenton reaction catalyzed by the heteropoly acid salts was a promising advanced oxidation tool for the treatment of phenol-containing wastewater. |
format | Online Article Text |
id | pubmed-9064807 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90648072022-05-04 Preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts Ji, Dandan Xue, Rong Zhou, Maojuan Zhu, Ying Zhang, Fengshan Zang, Lihua RSC Adv Chemistry Tungstovanadophosphoric heteropoly acid H(5)PW(10)V(2)O(40)·5.76H(2)O (HPWV) has been synthesized via stepwise acidification and gradual addition of elements. Some metals like Fe, Al and Cu were introduced into the heteropoly acid (HPA) in the molar ratio of 10 : 6, 10 : 6 and 10 : 4 respectively. The prepared catalysts were characterized by UV, FTIR, TG/DTA and XRD. The results indicated that HPWV and its metal salts all contain Keggin units, which are the primary structures of the heteropoly acids. The homogeneous photocatalytic degradation of phenol by heteropoly acid salts was studied in detail under artificial UV irradiation and addition of hydrogen peroxide (H(2)O(2)), and the effects of initial phenol and H(2)O(2) concentrations on the rate of photocatalytic phenol degradation were examined. The results suggested that the heteropoly acid salts showed good catalytic activities for phenol degradation via the ·OH radical mechanism. Under irradiation with a 10 W Hg lamp, 96% phenol was degraded within less than 60 min in the solution containing 50 mg L(−1) phenol + 2 μmol L(−1) Fe(5)(PW(10)V(2)O(40))(3) + 4 μmol L(−1) H(2)O(2), with the performance of the catalysts in order FePWV > AlPWV > CuPWV > HPWV. This work demonstrated that the photo-Fenton reaction catalyzed by the heteropoly acid salts was a promising advanced oxidation tool for the treatment of phenol-containing wastewater. The Royal Society of Chemistry 2019-06-11 /pmc/articles/PMC9064807/ /pubmed/35515250 http://dx.doi.org/10.1039/c9ra00652d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Ji, Dandan Xue, Rong Zhou, Maojuan Zhu, Ying Zhang, Fengshan Zang, Lihua Preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts |
title | Preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts |
title_full | Preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts |
title_fullStr | Preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts |
title_full_unstemmed | Preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts |
title_short | Preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts |
title_sort | preparation and photocatalytic performance of tungstovanadophosphoric heteropoly acid salts |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064807/ https://www.ncbi.nlm.nih.gov/pubmed/35515250 http://dx.doi.org/10.1039/c9ra00652d |
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