ZIF-67@SL-PAM复合材料的水相合成及表征

陈江豪, 杨超, 陈武, 刘卓状

doi:10.19817/j.cnki.issn1006-3536.2024.10.008

化工新型材料 >

2024 , Vol. 52 >Issue 10: 151 - 158

DOI: https://doi.org/10.19817/j.cnki.issn1006-3536.2024.10.008

科学研究

ZIF-67@SL-PAM复合材料的水相合成及表征

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1.长江大学化学与环境工程学院,荆州 434023;
2.中石油HSE重点实验室(长江大学),荆州 434023;
3.中国石油大学(华东)石油工程学院,青岛 266580

陈江豪(2001-),男,硕士,主要研究方向为油气田环保及应用化学,E-mail:2022710227@yangtzeu.edu.cn。

陈武(1967-),男,教授,主要从事油气田环保及应用化学的科研和教学工作,E-mail:ccww91@126.com。刘卓状(1996-),男,博士研究生,主要研究方向为油气田环保,E-mail:874122677@qq.com。

收稿日期: 2023-07-07

修回日期: 2024-05-10

网络出版日期: 2024-10-17

基金资助

中国石油天然气集团有限公司科研与技术开发项目(2021DJ6606)

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Aqueous synthesis and characterization of ZIF-67@SL-PAM composites

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1. College of Chemistry & Environmental Engineering,Yangtze University,Jingzhou 434023;
2. HSE Key Laboratory of Petro China Company Limited,Yangtze University,Jingzhou 434023;
3. College of Petroleum Engineering,China University of Petroleum (East China),Qingdao 266580

Received date: 2023-07-07

Revised date: 2024-05-10

Online published: 2024-10-17

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摘要

为解决ZIF-67纳米颗粒在水处理中存在的易流失、难回收和分散性差等问题,在水相法合成ZIF-67的基础上,采用原位生长法合成ZIF-67@木质素水凝胶(ZIF-67@SL-PAM)复合材料。首先探究了ZIF-67水相合成的影响因素,然后在单因素实验基础上使用响应面法得到ZIF-67@SL-PAM的最佳合成条件,通过傅里叶变换红外光谱仪、X射线衍射仪、场发射扫描电子显微镜等对复合材料进行了表征。结果表明:Co²⁺与配体摩尔比、钴源种类及去质子化剂影响ZIF-67纳米颗粒的尺寸和形貌;最佳条件下合成的ZIF-67@SL-PAM复合材料与过硫酸氢钾(PMS)构成的催化氧化体系对质量浓度2mg/L模拟废水中多环芳烃萘的去除率达到85.48%,ZIF-67@SL-PAM复合材料对PMS催化性能优良;ZIF-67@SL-PAM复合材料具有丰富的官能团,ZIF-67在木质素水凝胶中分散性良好。

关键词： ZIF-67; 水相合成; 木质素水凝胶; 多相催化氧化

本文引用格式

陈江豪, 杨超, 陈武, 刘卓状 . ZIF-67@SL-PAM复合材料的水相合成及表征[J]. 化工新型材料, 2024 , 52(10) : 151 -158 . DOI: 10.19817/j.cnki.issn1006-3536.2024.10.008

Abstract

In order to solve the problems such as easy loss,difficult recovery and poor dispersion of ZIF-67 nanoparticles in water treatment,ZIF-67@lignin hydrogel (ZIF-67@SL-PAM) composite was synthesized by in-situ growth method based on the aqueous phase method.Firstly,the factors affecting the aqueous phase synthesis of ZIF-67 were investigated,and then the optimal synthesis conditions of ZIF-67@SL-PAM were obtained by response surface method on the basis of single factor experiment.The composite was characterized by Fourier transform infrared spectrometer,X-ray diffractometer and field emission scanning electron microscope.The results showed that the molar ratio of Co²⁺ to ligand,the type of cobalt source and the deprotonation agent affected the size and morphology of ZIF-67 nanoparticles.Under the optimal conditions,the catalytic oxidation system composed of ZIF-67@SL-PAM and potassium bisulfate (PMS) could remove 85.48% of PAHs naphthalene from the simulated wastewater with a mass concentration of 2mg/L,and ZIF-67@SL-PAM had excellent catalytic performance for PMS.ZIF-67@SL-PAM composites had abundant functional groups,and ZIF-67 was well dispersed in lignin hydrogels.

Key words： ZIF-67; aqueous synthesis; lignin hydrogel; heterogeneous catalytic oxidation

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