杨梅素纳米银粒子的制备及其对直接染料的催化降解  

Synthesis of Myricetin silver nanoparticles and their catalytic degradation on direct dyes

作　　者：张俊[1] 王子冯 左一鸣 邢铁玲[2] 姚平[1,3] 张雪根 ZHANG Jun;WANG Zifeng;ZUO Yiming;XING Tieling;YAO Ping;ZHANG Xuegen(Suzhou Institute of Trade&Commerce,Suzhou 215009,China;College of Textile and Clothing Engineering,Soochow University,Suzhou 215023,China;Shenghong Group Co.,Ltd.,Wujiang 215228,China)

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

出　　处：《印染》2023年第1期45-48,共4页China Dyeing and Finishing

基　　金：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);江苏高校“青蓝工程”资助。

摘　　要：以杨梅素为还原剂,使用生物法制备纳米银粒子。通过测定发现,杨梅素纳米银粒子存在明显的SPR峰,其形貌特征为圆球形。以NaBH_(4)为还原剂,以直接橙26染料为降解对象,测定了不同pH条件下制备的杨梅素纳米银粒子的催化性能。结果表明:在没有催化剂的条件下,NaBH_(4)对直接橙26染料的还原作用有限;添加杨梅素纳米银粒子后,反应30 min后,直接橙26的最高降解率可达到98%。不同pH条件下制备的杨梅素纳米银粒子在粒径和有效浓度上存在明显的差异,在催化降解直接橙26染料时,最小平均粒径的MP2表现出最佳的催化性能。Silver nanoparticles(AgNPs)are prepared by biological method using Myricetin as a reducing agent.It is found that Myricetin-AgNPs has obvious SPR peak,and their morphology is spherical.The catalytic properties of Myricetin-AgNPs prepared under different pH conditions are determined using NaBH_(4) as a reducing agent and Direct Orange 26 as a degradation object.The results show that the reduction of Direct Orange 26 dye by NaBH_(4) is limited without catalyst.The degradation rate of Direct Orange 26 can reach 98%with the addition of Myricetin-AgNPs and reaction for 30 min.There are obvious differences in the particle size and effective concentration of Myricetin-AgNPs prepared under different pH conditions.MP2 with the minimum average particle size of Myricetin-AgNPs shows the best catalytic performance in the catalytic degradation of Direct Orange 26 dye.

关 键 词：催化降解 杨梅素 纳米银 直接染料 

分 类 号：TS199[轻工技术与工程—纺织化学与染整工程]