A timing self-cleaning nanoherbicide: Design of triple-structure nanovectors for weed control and pesticide residues treatment

Pesticide residues treatment is a crucial issue for both agricultural production and environmental protection. In recent years, designing self-cleaning nanoformulations has emerged as a promising strategy for reducing pesticide residues in a convenient and cost-effective manner. However, traditional...

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Main Authors: Jiao Cheng, Mei Li, Ri-xin Zhu, Jing-yi Li, Jun Yin, Wang Xiao
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2024-12-01
Series:Advanced Agrochem
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Online Access:http://www.sciencedirect.com/science/article/pii/S2773237123000813
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author Jiao Cheng
Mei Li
Ri-xin Zhu
Jing-yi Li
Jun Yin
Wang Xiao
author_facet Jiao Cheng
Mei Li
Ri-xin Zhu
Jing-yi Li
Jun Yin
Wang Xiao
author_sort Jiao Cheng
collection DOAJ
description Pesticide residues treatment is a crucial issue for both agricultural production and environmental protection. In recent years, designing self-cleaning nanoformulations has emerged as a promising strategy for reducing pesticide residues in a convenient and cost-effective manner. However, traditional physical blending methods of photodegradation reagents with nanocarriers have limitations in terms of pesticide residue degradation efficiency and active ingredient efficacy. Here, a new type of timing self-cleaning nanoherbicide dicamba@mSiO2/ATA/TiO2 with a triple structure was fabricated. Dicamba, a widely used herbicide that was attracting increasing concern over its high efficiency and broad spectrum, was selected as the model herbicide and loaded on the mSiO2 shell. In the stage of pesticide release, the TiO2 and dicamba were separated by the timing-barrier. Therefore, the efficacy of dicamba was not affected by the photocatalyst. During the release process, the ATA layer continuously absorbed the reactive oxygen species (ROS) produced by TiO2 and was gradually degraded. Finally, the barrier was destroyed, and the residual dicamba in the carrier was degraded by TiO2. Compared with the traditional physical blending method, this triple structure avoided the degradation of active ingredients by photocatalysts during the pesticide release period. The experimental results suggested that this nanoformulation improved the efficacy of the herbicide, and reduced the pesticide residues, providing a new approach for self-cleaning nanopesticides research.
format Article
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institution Kabale University
issn 2773-2371
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publishDate 2024-12-01
publisher KeAi Communications Co., Ltd.
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series Advanced Agrochem
spelling doaj-art-64c65438fc1749ddb8fa99b9b51106ba2024-11-10T04:07:54ZengKeAi Communications Co., Ltd.Advanced Agrochem2773-23712024-12-0134298307A timing self-cleaning nanoherbicide: Design of triple-structure nanovectors for weed control and pesticide residues treatmentJiao Cheng0Mei Li1Ri-xin Zhu2Jing-yi Li3Jun Yin4Wang Xiao5National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan, 430079, PR ChinaInstitute of Plant Protection, Shandong Academy of Agricultural Sciences, Jinan, 250100, PR ChinaNational Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan, 430079, PR ChinaNational Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan, 430079, PR ChinaNational Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan, 430079, PR ChinaNational Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan, 430079, PR China; Corresponding author.Pesticide residues treatment is a crucial issue for both agricultural production and environmental protection. In recent years, designing self-cleaning nanoformulations has emerged as a promising strategy for reducing pesticide residues in a convenient and cost-effective manner. However, traditional physical blending methods of photodegradation reagents with nanocarriers have limitations in terms of pesticide residue degradation efficiency and active ingredient efficacy. Here, a new type of timing self-cleaning nanoherbicide dicamba@mSiO2/ATA/TiO2 with a triple structure was fabricated. Dicamba, a widely used herbicide that was attracting increasing concern over its high efficiency and broad spectrum, was selected as the model herbicide and loaded on the mSiO2 shell. In the stage of pesticide release, the TiO2 and dicamba were separated by the timing-barrier. Therefore, the efficacy of dicamba was not affected by the photocatalyst. During the release process, the ATA layer continuously absorbed the reactive oxygen species (ROS) produced by TiO2 and was gradually degraded. Finally, the barrier was destroyed, and the residual dicamba in the carrier was degraded by TiO2. Compared with the traditional physical blending method, this triple structure avoided the degradation of active ingredients by photocatalysts during the pesticide release period. The experimental results suggested that this nanoformulation improved the efficacy of the herbicide, and reduced the pesticide residues, providing a new approach for self-cleaning nanopesticides research.http://www.sciencedirect.com/science/article/pii/S2773237123000813NanopesticideSelf-cleaningPesticide residuesPhotocatalytic degradation
spellingShingle Jiao Cheng
Mei Li
Ri-xin Zhu
Jing-yi Li
Jun Yin
Wang Xiao
A timing self-cleaning nanoherbicide: Design of triple-structure nanovectors for weed control and pesticide residues treatment
Advanced Agrochem
Nanopesticide
Self-cleaning
Pesticide residues
Photocatalytic degradation
title A timing self-cleaning nanoherbicide: Design of triple-structure nanovectors for weed control and pesticide residues treatment
title_full A timing self-cleaning nanoherbicide: Design of triple-structure nanovectors for weed control and pesticide residues treatment
title_fullStr A timing self-cleaning nanoherbicide: Design of triple-structure nanovectors for weed control and pesticide residues treatment
title_full_unstemmed A timing self-cleaning nanoherbicide: Design of triple-structure nanovectors for weed control and pesticide residues treatment
title_short A timing self-cleaning nanoherbicide: Design of triple-structure nanovectors for weed control and pesticide residues treatment
title_sort timing self cleaning nanoherbicide design of triple structure nanovectors for weed control and pesticide residues treatment
topic Nanopesticide
Self-cleaning
Pesticide residues
Photocatalytic degradation
url http://www.sciencedirect.com/science/article/pii/S2773237123000813
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