花状Ag/ZnO微纳米结构:简单的合成和多功能应用（英文）  

Ag-Strewn ZnO Flowerlike Microstructures: Simple Synthesis and Versatile Applications

作　　者：韩寒[1] 倪永红[1] 盛恩宏[1] 刘爱民[2] 

机构地区：[1]安徽师范大学化学与材料科学学院教育部功能性分子固体重点实验室安徽分子材料实验室安徽省功能性分子固体重点实验室,安徽芜湖241000 [2]安徽师范大学生命科学学院,安徽芜湖241000

出　　处：《安徽师范大学学报（自然科学版）》2015年第3期217-227,共11页Journal of Anhui Normal University(Natural Science)

基　　金：National Natural Science Foundation of China(21171005);Key Foundation of Chinese Ministry of Education(210098)

摘　　要：设计了一条两步路线成功合成了Ag纳米粒子点缀的ZnO花状微结构(Ag/ZnO).首先以六水合硝酸锌、尿素和L-半胱氨酸为反应原料,100°C下水热反应8h,合成出花状碱式碳酸锌前驱体,并经空气中高温煅烧得到多孔ZnO花状微结构;然后,通过光还原硝酸银得到了Ag/ZnO花状微结构.所得产物用X-射线衍射仪、扫描电子显微镜、透射电子显微镜、热重分析仪、红外光谱、紫外-可见漫反射光谱和荧光光谱等进行系统的表征.研究显示,所得的Ag/ZnO花状微结构在光催化、灭菌和电催化等领域都具有很好的应用.In this paper, Ag nanoparticles-strewn ZnO flowerlike microstructures were successfully synthesized via a two - step route. Porous ZnO flowerlike microstructures were firstly prepared by a simple hydrothermal process with subsequent calcination, employing Zn （NO3）2 and urea as the starting reactants in the presence of L-Cysteine; Then, Ag nanoparticles-strewn ZnO flowerlike microstructures were obtained through a photoreduction method. The as-synthesized products were characterized by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, （high resolution） transmission electron microscopy （HRTEM/TEM）, selected area electron diffraction （SAED）, thermogravimetric analysis （TGA）, Fourier transform infrared （FT-IR） spectra, UV-vis diffuse reflectance spectra （DRS） and photoluminescence spectra （PL）. Experiments showed that the Ag nanoparticles-strewn ZnO flowerlike microstructures exhibited versatile applications in some fields including excellent catalytic capacities for the degradation of Rhodamine B （RhB） and methyl orange （MO）, highly effective antimicrobial activities toward Escherichia coli and high electrocatalysis performance to hydrogen peroxide.

关 键 词：Ag/ZnO花状微结构 光学性能 多用途 

分 类 号：O614.411[理学—无机化学]