Adsorption and removal of organophosphorus pesticides from environmental water and soil samples by using magnetic multi-walled carbon nanotubes @ organic framework ZIF-8

被引：114

作者：

Liu, Guangyang ^{[1
,2
]}

Li, Lingyun ^{[1
]}

Huang, Xiaodong ^{[1
]}

Zheng, Shuning ^{[1
]}

Xu, Xiaomin ^{[1
]}

Liu, Zhongxiao ^{[1
]}

Zhang, Yanguo ^{[1
]}

Wang, Jing ^{[2
]}

Lin, Huan ^{[1
]}

Xu, Donghui ^{[1
]}

机构：

[1] Chinese Acad Agr Sci, Key Lab Vegetables Qual & Safety Control, Minist Agr China, Inst Vegetables & Flowers, Beijing 100081, Peoples R China

[2] Chinese Acad Agr Sci, Key Lab Agri food Safety & Qual, Inst Qual Stand & Testing Technol Agroprod, Minist Agr China, Beijing 100081, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2018年 / 53卷 / 15期

基金：

中国国家自然科学基金;

关键词：

SOLID-PHASE EXTRACTION; PERFORMANCE LIQUID-CHROMATOGRAPHY; TANDEM MASS-SPECTROMETRY; AQUEOUS-SOLUTION; GRAPHENE OXIDE; NANOPARTICLES; POLLUTANTS; SEPARATION; NANOCOMPOSITE; DERIVATIVES;

D O I：

10.1007/s10853-018-2352-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, the functional adsorbent metal-organic framework ZIF-8/magnetic multi-walled carbon nanotubes (M-M-ZIF-8) was successfully prepared for removal of eight organophosphorus pesticides from environmental water and soil samples. The M-M-ZIF-8 was characterized and their adsorption capacity was evaluated based on their isothermal adsorption curves. The results suggest that ZIF-8 particles are deposited on the surface of the magnetic MWCNTs via coordination-polymerization strategy. In addition, M-M-ZIF-8 has high static adsorption capacities for organophosphorus pesticides because of its high specific surface area and porous structure. The static adsorption data fit the Freundlich adsorption model better than the Langmuir model. Under the optimized conditions, M-M-ZIF-8 was successfully applied to remove the eight organophosphorus pesticides from environmental water and soil samples. A possible mechanism is valence-electron-driven adsorption by sharing or exchanging of electrons between the organophosphorus pesticide molecules and the vacant active sites of M-M-ZIF-8. Therefore, M-M-ZIF-8 is a promising hybrid adsorbent for adsorption and removal of organic pollutions from the environment.

引用

页码：10772 / 10783

页数：12

共 36 条

[1] Kinetic and equilibrium studies on the removal of 14C-ethion residues from wastewater by copper-based metal-organic framework [J].