Aqueous synthesis of Nb-modified SnO2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment

Low density polyethylene is widely used in agricultural production. It is of low cost and able to significantly improve the quality of fruits. However, its decomposition under natural circumstances needs more than one hundred of years. If not removed in time, it is hazardous to the ecological enviro...

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Autores principales:	Shao Jia, Deng Kai, Chen Le, Guo Chaomeng, Zhao Congshan, Cui Jiayuan, Shen Tongan, Li Kewei, Liu Jianqiao, Fu Ce
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	nb-modified sno2 visible-light photocatalysis polyethylene quantum dot environment remediation Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/9629b03c223e47e1abe7487dcc6f95ce
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spelling	oai:doaj.org-article:9629b03c223e47e1abe7487dcc6f95ce2021-12-05T14:10:50ZAqueous synthesis of Nb-modified SnO2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment2191-955010.1515/gps-2021-0046https://doaj.org/article/9629b03c223e47e1abe7487dcc6f95ce2021-08-01T00:00:00Zhttps://doi.org/10.1515/gps-2021-0046https://doaj.org/toc/2191-9550Low density polyethylene is widely used in agricultural production. It is of low cost and able to significantly improve the quality of fruits. However, its decomposition under natural circumstances needs more than one hundred of years. If not removed in time, it is hazardous to the ecological environment and crops. Up to now, the removal techniques of polyethylene films are polluted, expensive, and difficult to employ. A novel method is proposed for in situ removal of polyethylene by an effective and environmental friendly technique with low cost. The Nb-modified SnO2 quantum dots are prepared for the efficient photocatalytic degradation of polyethylene under visible light. The green synthesis of the photocatalyst includes the procedures of hydrolysis, oxidation, and hydrothermal treatment in aqueous solution. The Nb-modified SnO2 has a band gap of 2.95 eV, which enhances its absorption of visible light. A degradation efficiency of 29% is obtained within 6 h under visible irradiation. The hydroxyl radicals (•OH) are main active species in the degradation process. The prepared Nb-SnO2 quantum dots demonstrate a promising application in the photocatalytic degradation of polyethylene, contributing a novel strategy for the in situ treatment of agricultural wastes.Shao JiaDeng KaiChen LeGuo ChaomengZhao CongshanCui JiayuanShen TonganLi KeweiLiu JianqiaoFu CeDe Gruyterarticlenb-modified sno2 visible-light photocatalysispolyethylenequantum dotenvironment remediationChemistryQD1-999ENGreen Processing and Synthesis, Vol 10, Iss 1, Pp 499-506 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	nb-modified sno2 visible-light photocatalysis polyethylene quantum dot environment remediation Chemistry QD1-999
spellingShingle	nb-modified sno2 visible-light photocatalysis polyethylene quantum dot environment remediation Chemistry QD1-999 Shao Jia Deng Kai Chen Le Guo Chaomeng Zhao Congshan Cui Jiayuan Shen Tongan Li Kewei Liu Jianqiao Fu Ce Aqueous synthesis of Nb-modified SnO2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment
description	Low density polyethylene is widely used in agricultural production. It is of low cost and able to significantly improve the quality of fruits. However, its decomposition under natural circumstances needs more than one hundred of years. If not removed in time, it is hazardous to the ecological environment and crops. Up to now, the removal techniques of polyethylene films are polluted, expensive, and difficult to employ. A novel method is proposed for in situ removal of polyethylene by an effective and environmental friendly technique with low cost. The Nb-modified SnO2 quantum dots are prepared for the efficient photocatalytic degradation of polyethylene under visible light. The green synthesis of the photocatalyst includes the procedures of hydrolysis, oxidation, and hydrothermal treatment in aqueous solution. The Nb-modified SnO2 has a band gap of 2.95 eV, which enhances its absorption of visible light. A degradation efficiency of 29% is obtained within 6 h under visible irradiation. The hydroxyl radicals (•OH) are main active species in the degradation process. The prepared Nb-SnO2 quantum dots demonstrate a promising application in the photocatalytic degradation of polyethylene, contributing a novel strategy for the in situ treatment of agricultural wastes.
format	article
author	Shao Jia Deng Kai Chen Le Guo Chaomeng Zhao Congshan Cui Jiayuan Shen Tongan Li Kewei Liu Jianqiao Fu Ce
author_facet	Shao Jia Deng Kai Chen Le Guo Chaomeng Zhao Congshan Cui Jiayuan Shen Tongan Li Kewei Liu Jianqiao Fu Ce
author_sort	Shao Jia
title	Aqueous synthesis of Nb-modified SnO2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment
title_short	Aqueous synthesis of Nb-modified SnO2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment
title_full	Aqueous synthesis of Nb-modified SnO2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment
title_fullStr	Aqueous synthesis of Nb-modified SnO2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment
title_full_unstemmed	Aqueous synthesis of Nb-modified SnO2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment
title_sort	aqueous synthesis of nb-modified sno2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/9629b03c223e47e1abe7487dcc6f95ce
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Aqueous synthesis of Nb-modified SnO2 quantum dots for efficient photocatalytic degradation of polyethylene for in situ agricultural waste treatment

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