自清洁氟碳铝单板用N-TiO_2薄膜制备工艺参数优化  

Self-cleaning fluorocarbon aluminum with N-TiO_2 film preparation process parameters optimization

作　　者：霍明[1,2] 闫洪[1,2] 艾凡荣[1,2] 

机构地区：[1]南昌大学材料加工工程系,南昌330031 [2]南昌市轻合金材料制备与加工重点实验室,南昌330031

出　　处：《功能材料》2014年第19期19143-19148,共6页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(51102131);南昌市科技支撑计划资助项目(20110515090004398);江西省高等学校科技创新团队资助项目(00008713)

摘　　要：以尿素和氨水为氮源,采用溶胶-凝胶法低温制备了具有可见光活性的N-TiO2光催化剂,并用XRD、SEM、FT-IR、UV-Vis等表征手段,研究其晶体结构和光催化性能。结果表明,以尿素为氮源,在pH值=2、n(醇)∶n(钛)为10、水浴温度为65℃、n(氮)∶n(钛)为0.06条件下制备的N-TiO2以锐钛矿为主,结晶度好,薄膜表面均匀平整;与以氨水为氮源制备的N-TiO2比较具有更好的可见光活性。Visible-light-active N-TiO 2 photocatalyst was synthesized by the sol-gel method with using urea and ammonia as the nitrogen precursor at low temperature,structural and photocatalyst performance of such photo-catalyst were characterized by XRD,SEM,FT-IR and UV-Vis.The results showed when urea was used as ni-trogen precursor,under the conditions of the pH of sol was 2,the molar percent of alcohol to Ti(OBu)4 was 10,water-bath temperature was 65 ℃,the molar percent of N/Ti was 0.06,the anatase was the mian constitu-ent,N-TiO 2 had obviously visible-light-activity,high crystallinity and the film with a uniform surface.And it was obviously higher than that of ammonia as the nitrogen precursor.

关 键 词：尿素 氨水 溶胶-凝胶法 N-TiO 2 氟碳铝单板 N-TiO2 

分 类 号：TB321[一般工业技术—材料科学与工程]