活性炭纤维毡负载N-TiO_(2)/MoS_(2)/N-TiO_(2)固定化漆酶降解双酚A  

Degradation of bisphenol A by N-TiO_(2)/MoS_(2)/N-TiO_(2)immobilized laccase on activated carbon fiber felt

作　　者：李章良 杨月珠 伍传田 吕源财[2] LI Zhangliang;YANG Yuezhu;WU Chuantian;LYU Yuancai(College of Environmental and Biological Engineering,Putian University,Putian 351100,Fujian,China;College of Environment and Safety Engineering,Fuzhou University,Fuzhou 350108,Fujian,China;Fujian Provincial Key Laboratory of Ecology-Toxicological Effects&Control for Emerging Contaminants,Putian 351100,Fujian,China;Key Laboratory of Ecological Environment and Information Atlas,Fujian Provincial University,Putian 351100,Fujian,China)

机构地区：[1]莆田学院环境与生物工程学院,福建莆田351100 [2]福州大学环境与安全工程学院,福建福州350108 [3]福建省新污染物生态毒理效应与控制重点实验室,福建莆田351100 [4]生态环境及其信息图谱福建省高等学校重点实验室,福建莆田351100

出　　处：《化工进展》2025年第2期887-898,共12页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(51908132);福建省自然科学基金(2020J01912);莆田学院科研项目(2024036)。

摘　　要：以活性炭纤维毡(ACFF)为基底,采用水热法与超声法相结合方式制备了活性炭纤维毡负载N-TiO_(2)/MoS_(2)/N-TiO_(2)光催化剂(NT/MS/NT/ACFF),并以此作为载体,通过共价结合法制得NT/MS/NT/ACFF固定化漆酶。利用扫描电子显微镜、X射线衍射仪、比表面积分析、拉曼光谱、紫外-可见分光光度计和傅里叶变换红外光谱等手段对样品的形貌、微观结构进行了表征,研究了不同体系对双酚A(BPA)的降解效果、反应动力学及矿化率,考察了催化剂的重复使用性能。结果表明,与其他体系相比,可见光下NT/MS/NT/ACFF固定化漆酶对BPA降解率高达82.5%,表观速率常数k_(obs)为0.00764min^(-1),矿化率可达64.5%。NT/MS/NT/ACFF固定化漆酶具有良好的光催化、酶催化的活性及稳定性,循环使用4次后BPA降解率仍可达到69.4%。通过气相色谱-质谱(GC-MS)结果分析,推断BPA被NT/MS/NT/ACFF固定化漆酶的催化降解过程包括断裂重组、氧化分解、开环等反应。N-TiO_(2)/MoS_(2)/N-TiO_(2)(NT/MS/NT/ACFF)photocatalyst supported by activated carbon fiber felt(ACFF)was prepared by ultrasound assisted hydrothermal method,and used as the carrier of laccase.The NT/MS/NT/ACFF immobilized laccase was then obtained by covalent bonding method.The morphology and microstructure of the catalyst were characterized by means of SEM,XRD,BET,Raman,UV-vis DRS and FTIR.The effects of different systems on the degradation of bisphenol A(BPA).The reaction kinetics,mineralization rate and reusability of NT/MS/NT/ACFF immobilized laccase were studied.The results showed that compared with other systems,NT/MS/NT/ACFF immobilized laccase in visible light had the best degradation rate of BPA(82.5%),the apparent rate constant k_(obs) was 0.00764 min^(-1),and the mineralization rate was up to 64.5%.NT/MS/NT/ACFF immobilized laccase has goodphotocatalysis performance,enzyme catalytic activity and stability,and the degradation rate of BPA can still reach 69.4%after 4 cycles.Through GC-MS analysis,we concluded that the catalytic degradation of BPA by NT/MS/NT/ACFF immobilized laccase includes steps of fracture recombination,oxidative decomposition and ring-opening reactions.

关 键 词：催化剂载体 纳米二氧化钛 二硫化钼 漆酶 固定化 双酚A 

分 类 号：X703.1[环境科学与工程—环境工程] TQ426.97[化学工程]