Different decorated ZIF-67 adsorption performance towards methamphetamine revealed by theoretical and experimental investigations

作者全名："Song, Fengjiao; Cao, Shurui; Liu, Zhenghong; Su, Hongtao; Chen, Zhiqiong"

作者地址："[Song, Fengjiao; Chen, Zhiqiong] Chongqing Med Univ, Coll Pharm, Chongqing 400016, Peoples R China; [Cao, Shurui; Liu, Zhenghong; Su, Hongtao] Southwest Univ Polit Sci & Law, Forens Identificat Ctr, Chongqing 401120, Peoples R China; [Cao, Shurui] Southwest Univ Polit Sci & Law, Criminal Invest Law Sch, Chongqing 401120, Peoples R China"

通信作者："Chen, ZQ (通讯作者)，Chongqing Med Univ, Coll Pharm, Chongqing 400016, Peoples R China."

来源：JOURNAL OF MOLECULAR LIQUIDS

ESI学科分类：CHEMISTRY

WOS号：WOS:000879224800005

JCR分区：Q1

影响因子：6

年份：2022

卷号：364

期号：　

开始页：　

结束页：　

文献类型：Article

关键词：Metal organic framework; Reduced graphene oxide; Psychoactive substances; Adsorption; Mechanism

摘要："Metal-organic framework (MOF) materials, which have been deemed as effective adsorbents for remov-ing emerging contaminants, suffered from difficult separation that limited their application in water treatment. Two different decorated ZIF-67 multifunctional adsorbents have been successfully fabricated by anchoring ZIF-67 on diverse magnetic substrates. The comparative study combining a series of adsorp-tion experiments and structural characterization analyses was facilitated to explore the adsorption per-formance of two adsorbents (MrGO/ZIF and MZIF). The better adsorption capacity of MrGO/ZIF for methamphetamine (MAMP) was observed. For the introduction of reduced graphene oxide (rGO), ZIF-67 nanocrystals showed stratified multidimensional distribution on rGO, and formed a stepped pore structure. Relatively large pores of MrGO/ZIF were beneficial for the transport and adsorption of MAMP in aqueous phase. The adsorption of MAMP could be described by the Langmuir isotherm and pseudo-second-order kinetic model, and adsorption process was spontaneous and endothermic. Theoretical investigation in combination with analyses of the XPS characterization illustrated that the H-bonding interaction between the Co-OH and-NH of MAMP, and p -p interaction among the heteroaromatic rings in adsorbent and the benzene ring of MAMP was the mainly contribution of driving MAMP adsorption on MrGO/ZIF. Summarily, the excellent adsorption properties of MrGO/ZIF coupled with facile separation and sustainability make MrGO/ZIF remove MAMP more efficiently from water, which provide an insight for contaminated water treatment, and psychoactive substances monitoring.(c) 2022 Elsevier B.V. All rights reserved."

基金机构："Chongqing Municipal Education Commission [KJCXZD2020016, KJZD-K202100301]; Chongqing Science and Technology Commission [cstc2021jcyj-msxmX0715, cstc2019jscx-msxmX0274]; Science and Technology Bureau of Yubei District, Chongqing [2021 (Agricultural Cooper-ative) 13]; Southwest University of Political Science and Law, Chongqing [2021-XZRCXM005]"

基金资助正文："The work was supported by the Chongqing Municipal Education Commission (Grant No. KJZD-K202100301) ; the Chongqing Science and Technology Commission (Grant No. cstc2021jcyj-msxmX0715) ; the Chongqing Municipal Education Commission (Grant No. KJCXZD2020016) ; the Science and Technology Bureau of Yubei District, Chongqing (Grant No. 2021 (Agricultural Cooper-ative) 13) ; the Chongqing Science and Technology Commission (Grant No. cstc2019jscx-msxmX0274) ; the Southwest University of Political Science and Law, Chongqing (Grant No. 2021-XZRCXM005) ."