核壳中空二氧化钛光催化载体的制备及其光催化性能研究  

Research on Preparation and Photocatalytic Performance of Photocatalytic Carrier of Titanium Dioxide in Nuclear Shell Hollow

作　　者：徐友峰[1] 李文华[1] 陈丽娟[1] 苏琪映[1] 王騊[1] 王晟[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2013年第6期819-823,共5页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家自然科学基金(31070888;50802088;21103152);浙江省自然科学基金(Y4080392);浙江省创新团队项目(2011R50003);浙江理工大学材料科学与工程研究生教育创新示范基地(编号3)

摘　　要：以未煅烧的SiO2@C@TiO2核壳粒子和低熔点玻璃粉为基材,通过熔融法制备核壳中空二氧化钛催化载体SiO2@@TiO2/玻璃粉载体,并用EDS,XRD对其进行表征,同时用紫外可见吸收光谱对其光催化性能进行测试。结果表明:以低熔点玻璃粉为载体制备的SiO2@@TiO2光催化载体材料对罗丹明B的吸附效果较好,能够使罗丹明B的浓度降低35%,有利于光催化降解;而经过1h的光催化降解,能够使罗丹明B的浓度降低97%,表现出优良的光催化性能。This research prepares titanium dioxide catalytic carrier SiO2@@TiO2/glass powder carrier in nuclear shell hollow with melting method with uncalcined SiO2@C@TiO2 nuclear shell particles and low-melting-point glass powder as base materials,characterizes it with EDS and XRD and meanwhile tests its photocatalytic performance with ultraviolet visible absorption spectrum.The result shows that SiO2@@TiO2 photocatalytic carrier material prepared with low-melting-point glass powder as carrier has a good absorbing effect of rhodamine B and can reduce the concentration of rhodamine B by 35 ％ and is conducive to photocatalytic degradation.With 1 h photocatalytic degradation,it can reduce the concentration of rhodamine B by 97％ and shows a good photocatalytic performance.

关 键 词：低熔点玻璃粉 二氧化钛 核壳中空 光催化载体 

分 类 号：O642.32[理学—物理化学]