Preparation of gadolinium metal organic framework and its application for adsorption of phoxim

Authors

TANG Xiong, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China
CHEN Maolong, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China
XU Zhou, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China
CHENG Yunhui, School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China

Abstract

Metal-organic-frameworks is a new type of porous crystal material which is assembled by metal ions and organic ligands. Gd-MOF was prepared by GdCl₃·6H₂O and H₃BTC, and its adsorption performance for phoxim pesticides was inves-tigated. The results showed that Gd-MOF could effectively adsorb phoxim pesticides from water, and the saturated adsorption amount of phoxim was 33.5 mg/g. When Gd-MOF was 40~80 mg, the adsorption rate of phoxim could reached 90%; and in all pH range 3~7, there was a certain adsorption force on the phoxim table. It is speculated that the adsorption of phoxim by Gd-MOF may be due to its pore structure and the interaction of Gd³⁺ with phosphorus-oxygen bonds between phoxim. The results of Gd-MOF regeneration experiments show that Gd-MOF has good cycle performance. As a new type of composite material for removing phoxim pesticides from water.

Publication Date

2-28-2019

First Page

37

Last Page

41

DOI

10.13652/j.issn.1003-5788.2019.02.008

Recommended Citation

Xiong, TANG; Maolong, CHEN; Zhou, XU; and Yunhui, CHENG (2019) "Preparation of gadolinium metal organic framework and its application for adsorption of phoxim," Food and Machinery: Vol. 35: Iss. 2, Article 8.
DOI: 10.13652/j.issn.1003-5788.2019.02.008
Available at: https://www.ifoodmm.cn/journal/vol35/iss2/8

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