摘要
针对目前光催化降解蓝藻效率较低、环境制约因素较多的现状,本研究采用表面分子印迹技术,通过液相沉积法制备了分子印迹型TiO_2光催化剂(MIP-TiO_2)。利用X射线衍射(XRD)、扫描电子显微镜(SEM)和紫外-可见光分光光度计(UV-Vis)等对制备的样品及其光催化降解效率进行了表征。研究结果表明:与非印迹型TiO_2光催化剂(NIP-TiO_2)相比,MIP-TiO_2具有更高的叶绿素吸附能力,因此能够快速提高蓝藻溶液的透光性,增强光催化剂降解蓝藻的效率。
In view of the current lower efficiency and more environmental constraints of photocatalytic degradation of cyanobacteria,molecularly imprinted TiO2(MIP-TiO2)photocatalysts were prepared by liquid-phase deposition method using surface molecular imprinting technique.The prepared samples and photocatalytic degradation efficiency were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM)and UV-Vis spectrophotometer.Test results showed that compared with non-imprinted TiO2photocatalyst(NIP-TiO2),MIP-TiO2 has higher chlorophyll adsorption capacity,which can famously improve the light transmittance of cyanobacteria solution and enhance the efficiency of photocatalytic degradation of cyanobacteria.
作者
何军辉
姚武
魏永起
HE Junhui;YAO Wu;WEI Yongqi(Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education, School of MaterialsScience and Engineering, Tongji University,Shanghai 201804)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2018年第A02期204-206,共3页
Materials Reports
基金
中央高校基本科研业务费专项资金(22120170261)。
关键词
纳米TIO2
分子印迹
光催化
叶绿素
nano-titanium dioxide
molecule imprinted
photocatalysis
chlorophyll
