钛源对CaTiO_3枝晶结构的光催化性能影响  

Effects of Titanium Sources on the Photocatalytic Properties of CaTiO_3 Dendrite

作　　者：包启富 董伟霞 周健儿 顾幸勇 沈慧娟 BAO Qi-fu;DONG Wei-xia;ZHOU Jian-er;GU Xing-yong;SHEN Hui-juan(School of Meterials Science and Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333403,China)

机构地区：[1]景德镇陶瓷大学材料科学与工程学院,景德镇333403

出　　处：《人工晶体学报》2018年第11期2265-2269,共5页Journal of Synthetic Crystals

基　　金：国家自然青年科学基金(51502119);江西省重大自然科学基金(20152ACB21022);江西省对外科技合作项目(20161BBH80048)

摘　　要：通过改变不同钛源,在无模板或表面活性剂条件下采用溶剂热法制备了CaTiO_3枝晶结构。样品用X射线衍射、扫描电子显微镜和比表面积分析仪进行了表征,并用紫外-可见吸收光度计测试样品的光吸收。研究不同钛源种类对CaTiO_3样品的微观结构和光降解率的影响。结果表明:钛源为钛酸丁酯所制备的CaTiO_3样品呈现发育良好的枝晶结构,其降解罗丹明B溶液的降解率最高。这主要是由于样品的结晶度高、枝晶结构使其具有低的反射率,因此样品呈现出较高的光降解率。By changing titanium source kinds,CaTiO 3 dendritic structure were prepared without template or surfactant via a solvothermal method.The samples were analysized by X-ray diffraction,scanning electron microscopy and specific surface area analyzer.The absorption curves of the samples were characterized by ultraviolet-visible absorption spectrophotometer.Effects of titanium source kinds on microstructure and photocatalytic properties of CaTiO 3 samples were studied.The results showed that the photocatalytic rate of CaTiO 3 dendrite prepared using TBOT for degrading RhB solutions are superior to the others.It is attributed that CaTiO 3 dendritic structure had high crystallinity,low reflection rate and high absorption rate,which reached the optimum photocatalytic rate.

关 键 词：溶剂热法 钛源种类 CaTiO3枝晶 光催化性能 

分 类 号：TQ435[化学工程] O76[理学—晶体学]