纳米银粒子的生物制备及其对直接紫1染料的催化还原降解  

Biosynthesis of silver nanoparticles and their catalytic reductive degradation for direct violet 1 dye

作　　者：李爱景 王曦予 姚平[2,3] 张俊 邢铁玲[1] 陈国强[1] 张雪根[3] LI Aijing;WANG Xiyu;YAO Ping;ZHANG Jun;XING Tieling;CHEN Guoqiang;ZHANG Xuegen(College of Textile and Clothing Engineering,Soochow University,Suzhou 215023,Jiangsu,China;Suzhou Institute of Trade and Commerce Suzhou,Suzhou 215009,Jiangsu,China;Shenghong Group Co.,Ltd.,Wujiang 215228,Jiangsu,China)

机构地区：[1]苏州大学纺织与服装工程学院,江苏苏州215023 [2]苏州经贸职业技术学院,江苏苏州215009 [3]盛虹集团有限公司,江苏吴江215228

出　　处：《上海纺织科技》2023年第3期5-8,共4页Shanghai Textile Science & Technology

基　　金：国家自然科学基金项目(51973144、51741301);江苏省自然科学基金面上项目(BK20201181);2020年度江苏省第五期“333工程”科研资助立项项目(BRA2020324);2021年江苏省科技厅产学研合作项目(BY2021288);苏州市科技计划项目(民生科技)(SS202015);江苏省高职院校教师专业带头人高端研修项目资助(2021GRGDYX012)。

摘　　要：通过生物还原法制备了杨梅素纳米银粒子,经测定,杨梅素纳米银粒子在近407 nm处存在明显的SPR峰。不同pH值条件下制备的杨梅素纳米银粒子在SPR峰、粒径分布和催化性能方面存在一定差异。随着反应溶液pH值的增大,其SPR峰发生了一定程度的蓝移。当使用杨梅素纳米银粒子催化降解直接紫1染料时,具有较小平均粒径的MP2(pH值为7.013)杨梅素纳米银粒子表现出最佳的催化效率,经过40 min的反应后,直接紫1染料的降解百分率达到82%。Myricetin silver nanoparticles are prepared by biological reduction method.It is determined that myricetin nano-silver particles have an obvious SPR peak at 407 nm.There are some differences in SPR peak,particle size distribution and catalytic performance of Myricetin AgNPs biosynthesized under different pH values.With the increase of the pH value of the reaction solution,its SPR peak has a certain degree of blue shift.When Myricetin AgNPs are used to catalyze the degradation of Direct Violet 1 dye,MP2(prepared at pH value of 7.013)with small average particle size shows the best catalytic efficiency.After 40 min reaction,the degradation percentage of Direct Violet 1 dye reach up to 82%.

关 键 词：纳米银粒子 杨梅素 直接紫1染料 催化还原降解 粒径 

分 类 号：TS199[轻工技术与工程—纺织化学与染整工程]