ZIF-8/CDP功能织物的制备及其对染料的脱色性能  

Preparation of ZIF-8/CDP functional fabric and its decolorization of dye

作　　者：徐康景 蓝舟[1] 董燕超 李龙飞 王春梅[1] XU Kangjing;LAN Zhou;DONG Yanchao;LI Longfei;WANG Chunmei(School of Textile and Clothing,Nantong University,Nantong 226019,China)

机构地区：[1]南通大学纺织服装学院,江苏南通226019

出　　处：《染整技术》2022年第3期17-22,共6页Textile Dyeing and Finishing Journal

基　　金：江苏省研究生科研创新计划项目(KYCX19_2062);南通大学大学生创新训练计划项目(2020130)。

摘　　要：采用原位生长法在阳离子可染涤纶(CDP)上负载沸石咪唑骨架材料(ZIF-8),制备ZIF-8/CDP功能织物,并采用扫描电子显微镜(SEM)、X射线衍射(XRD)和傅里叶变换衰减全反射红外光谱(ATR-FTIR)进行表征。以活性黑KN-B染料为降解对象,研究染液初始质量浓度和自由基捕捉剂对ZIF-8/CDP光催化性能的影响。结果表明,染料降解率与染液初始质量浓度成反比,在可见光下活性黑KN-B染料的降解反应符合准一级动力学方程;CDP纤维表面的ZIF-8与可见光的光子反应,产生一系列自由基对活性黑KN-B染料分子进行催化降解,其中产生的h+是使活性黑KN-B染料降解的主要活性物质。功能织物重复使用3次,对活性黑KN-B染料的脱色率分别为91%、84%和69%。Zeolitc imidazolate framework material(ZIF-8)was loaded on cationic-dyeable polyester(CDP)by in-situ growth method to prepare ZIF-8/CDP functional fabric,and the structure of ZIF-8/CDP was characterized by XRD,SEM and ATR-FTIR.Using Reactive Black KN-B as the degradation target,the effects of initial mass concentration of dye solu-tion and free radical scavenger on the photocatalytic performance of ZIF8/CDP were studied.The results show that the dye degradation ratio is inversely proportional to the initial mass concentration of the dye solution.The Reactive Black KN-B degradation reaction is consistent with the quasi-first-order kinetic equation under visible light.ZIF-8 on the surface of CDP fiber reacts with photons of visible light to generate a series of free radicals to catalytically degrade the Reactive Black KN-B molecule,and the resulting h+is the main active species that degrade the Reactive Black KN-B.The degradation rate of the functional fabric reused three times is 91%,84%and 69%,respectively.

关 键 词：沸石 咪唑 骨架材料 阳离子可染涤纶 光催化脱色 废水处理 

分 类 号：TS190.2[轻工技术与工程—纺织化学与染整工程]