Preparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil

Chlorothalonil is widely used to control fungal diseases and it is usually detected in the environment. Phototransformation is an important process to remove chlorothalonil from the aquatic environment. The mesoporous ammonium phosphotungstate/silica catalyst (NH4PW/SiO2) was synthesized from cetyl...

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Autores principales:	Wei Tan, Yifei Zhang, Tianli Wang, Lei Liu, Junxiu Ye, Min Yang, Hongbin Wang
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	chlorothalonil mesoporous ammonium phosphotungstate photocatalyst silicon dioxide Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/584c2080851348f482e5ce8337993ba0
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spelling	oai:doaj.org-article:584c2080851348f482e5ce8337993ba02021-11-06T07:05:11ZPreparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil1606-97491607-079810.2166/ws.2020.248https://doaj.org/article/584c2080851348f482e5ce8337993ba02021-02-01T00:00:00Zhttp://ws.iwaponline.com/content/21/1/14https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798Chlorothalonil is widely used to control fungal diseases and it is usually detected in the environment. Phototransformation is an important process to remove chlorothalonil from the aquatic environment. The mesoporous ammonium phosphotungstate/silica catalyst (NH4PW/SiO2) was synthesized from cetyl trimethyl ammonium bromide (CTAB) and tetraethoxysilane (TEOS) as raw materials by adding insoluble ammonium phosphotungstate into the alkaline alcohol–water system by the sol-gel method. The structure of NH4PW/SiO2 was characterized by X-ray diffractometry (XRD), Brunauer–Emmett–Teller (BET) and Fourier transform infrared spectroscopy (FT-IR). The photocatalytic activity of NH4PW/SiO2 was evaluated by using the organic pesticide chlorothalonil as a model reactant. The result indicated that when the dosage of NH4PW/SiO2 is 0.02 g, the illumination is 180 min, the concentration of chlorothalonil is 5 mg/L, pH = 5, the degradation effect is better, and the degradation rate reaches 83.23%. The results contributed to the understanding of chlorothalonil phototransformation and the potential of mesoporous SiO2 to effectively enhance the photocatalytic activity of NH4PW (64.16%) to reduce aquatic toxicity and pollution by chlorothalonil.Wei TanYifei ZhangTianli WangLei LiuJunxiu YeMin YangHongbin WangIWA Publishingarticlechlorothalonilmesoporous ammonium phosphotungstatephotocatalystsilicon dioxideWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 1, Pp 14-23 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	chlorothalonil mesoporous ammonium phosphotungstate photocatalyst silicon dioxide Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	chlorothalonil mesoporous ammonium phosphotungstate photocatalyst silicon dioxide Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Wei Tan Yifei Zhang Tianli Wang Lei Liu Junxiu Ye Min Yang Hongbin Wang Preparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil
description	Chlorothalonil is widely used to control fungal diseases and it is usually detected in the environment. Phototransformation is an important process to remove chlorothalonil from the aquatic environment. The mesoporous ammonium phosphotungstate/silica catalyst (NH4PW/SiO2) was synthesized from cetyl trimethyl ammonium bromide (CTAB) and tetraethoxysilane (TEOS) as raw materials by adding insoluble ammonium phosphotungstate into the alkaline alcohol–water system by the sol-gel method. The structure of NH4PW/SiO2 was characterized by X-ray diffractometry (XRD), Brunauer–Emmett–Teller (BET) and Fourier transform infrared spectroscopy (FT-IR). The photocatalytic activity of NH4PW/SiO2 was evaluated by using the organic pesticide chlorothalonil as a model reactant. The result indicated that when the dosage of NH4PW/SiO2 is 0.02 g, the illumination is 180 min, the concentration of chlorothalonil is 5 mg/L, pH = 5, the degradation effect is better, and the degradation rate reaches 83.23%. The results contributed to the understanding of chlorothalonil phototransformation and the potential of mesoporous SiO2 to effectively enhance the photocatalytic activity of NH4PW (64.16%) to reduce aquatic toxicity and pollution by chlorothalonil.
format	article
author	Wei Tan Yifei Zhang Tianli Wang Lei Liu Junxiu Ye Min Yang Hongbin Wang
author_facet	Wei Tan Yifei Zhang Tianli Wang Lei Liu Junxiu Ye Min Yang Hongbin Wang
author_sort	Wei Tan
title	Preparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil
title_short	Preparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil
title_full	Preparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil
title_fullStr	Preparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil
title_full_unstemmed	Preparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil
title_sort	preparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/584c2080851348f482e5ce8337993ba0
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Preparation of mesoporous ammonium phosphotungstate/silica catalyst and study on the degradation performance of chlorothalonil

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