Chinese Journal of Applied Chemistry ›› 2022, Vol. 39 ›› Issue (11): 1774-1782.DOI: 10.19894/j.issn.1000-0518.220109

• Full Papers • Previous Articles    

Preparation and Application of Attapulgite Based Nano⁃controlled Chlorpyrifos

Dong-Qing CAI1, Jing ZHANG1, Qing-Chuan WU2, Jing-Hong YE1, Lin-Ying WANG1, Dong-Fang WANG1()   

  1. 1.School of Environmental Science and Engineering,Donghua University,Shanghai 201620,China
    2.Hefei Institute of Physical Science,Chinese Academy of Sciences,Hefei 230001,China
  • Received:2022-04-04 Accepted:2022-07-19 Published:2022-11-01 Online:2022-11-09
  • Contact: Dong-Fang WANG
  • About author:dfwang@dhu.edu.cn
  • Supported by:
    the Science and Technology Service Program of Chinese Academy of Science(KFJ?STS?QYZD?199);the Fundamental Research Funds for the Central Universities(2232020D?22);the National Natural Science Foundation of China(52000025);the Key R&D Program of Guangdong Province(2020B0202010005);the Key R&D Program of Inner Mongolia Autonomous Region(2021GG0300)

Abstract:

In order to improve the utilization ratio of pesticides and reduce the harm of pesticides to the environment, nano loss control chlorpyrifos (NLCC) is fabricated by loading chlorpyrifos (CPF) on attapulgite (ATP). The loss control effect of ATP on CPF is studied by filter paper and sugarcane leaves and the interaction of NLCC system is studied by SEM, FT-IR, XRD, and so on. Furthermore, the loss control effect of ATP on CPF is also investigated by field test. These results show that ATP could adsorb CPF by hydrogen bonds and the adhesion amount of CPF before and after rainfall increases by 5.4 μg and 5.6 μg, respectively. The maximum loading amount of attapulgite to chlorpyrifos is 500 mg/g. In addition, the mortality of corn borers increases by 20% respectively. Moreover, the field test also shows that NLCC could reduce 21% of sugarcane damaged by pests, 4.3% of sugarcane stalks damaged by pests, and the wormholes of 2 per plant and increase the height by 23.1 cm. These results indicate that NLCC could effectively reduce pests and promote the growth of sugarcane. Therefore, this study provides a simple and practical method for reducing pesticide loss, improving pesticide utilization rate, and decreasing environmental pollution, which has a high application value for the development of green agriculture.

Key words: Attapulgite, Chlorpyrifos, Loss control, Hydrogen bonds, Field test

CLC Number: