ZnFe_(2)O_(4)/SBA-15制备及光催化降解亚甲基蓝  

Preparation of ZnFe_(2)O_(4)/SBA-15 and Photocatalytic Degradation of Methylene Blue

作　　者：田志茗[1] 常悦 TIAN Zhiming;CHANG Yue(College of Chemistry and Chemical Engineering,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,齐齐哈尔161006

出　　处：《环境科学与技术》2021年第5期76-82,共7页Environmental Science & Technology

基　　金：黑龙江省自然科学基金面上资助项目(B2015014);黑龙江省教育厅基本科研业务专项课程(135209219)。

摘　　要：文章采用浸渍法制备了一系列ZnFe_(2)O_(4)/SBA-15纳米复合材料,通过XRD、XPS、N_(2)吸附-脱附、UV-Vis DRS、SEM、TEM等分析方法对制备的材料进行表征。结果表明,复合材料中的SiO_(2)具有介孔结构,ZnFe_(2)O_(4)纳米粒聚集在SiO_(2)的外表面或进到孔道中,且仍呈现六方尖晶石结构,UV-Vis DRS表明ZnFe_(2)O_(4)/SBA-15纳米复合材料增强了对可见光的吸收,提高了对太阳光利用效率;ZnFe_(2)O_(4)/SBA-15对亚甲基蓝染料废水具有良好的吸附性能和光降解性能,且催化剂可通过磁分离技术有效的分离和回收。Series of ZnFe_(2)O_(4)/SBA-15 nanocomposites were prepared by impregnation method.The nanocomposite were characterized by XRD,XPS,N_(2)adsorption-desorption,UV-Vis DRS,SEM,TEM analytical methods.The results showed that the ZnFe_(2)O_(4)nanoparticles exhibited a hexagonal spinel phase structure and supported on the outer surface of SiO_(2)or entered into the SiO_(2)channel.UV-Vis DRS showed that ZnFe_(2)O_(4)/SBA-15 nanocomposites enhanced visible light absorption and solar light utilization efficiency.As results,ZnFe_(2)O_(4)/SBA-15 not only showed adsorption and photodegradation performance,but also can be effectively separated and recovered by the magnetic separation technology.

关 键 词：ZnFe_(2)O_(4) Zn Fe_(2)O_(4)/SBA-15 光降解 亚甲基蓝 

分 类 号：X703[环境科学与工程—环境工程]