摘要
为了实现氟碳铝单板在太阳光下的自清洁,以钛酸丁酯为钛源、尿素为氮源,采用溶胶凝胶法在氟碳铝单板表面低温制备了N掺杂的Ti O2(N-Ti O2)薄膜,并制备了纯Ti O2薄膜进行比较。采用扫描电镜(SEM)、X射线衍射仪(XRD)、红外光谱仪分析了薄膜的形貌、物相及分子结构;用紫外-可见光分光光度计测定薄膜的紫外-可见光吸收波谱,并在可见光下分析了薄膜对亚甲基蓝溶液的光催化降解性能。结果表明:N掺杂能抑制Ti O2由锐钛矿相向金红石相转化,N-Ti O2薄膜表面光滑平整,没有孔洞和裂纹,在可见光下表现出了显著的光催化活性。
Nitrogen doped TiO_2,film(denoted as N-TiO_2) was prepared on fluorocarbon-Al sheet by sol-gel process at lowered temperature with tetrabutyl titanate as the precursor and urea as the N source.The phase composition,morphology,and molecular structure of as-prepared N-TiO_2 film were analyzed by X-ray diffraction,scanning electron microscopy,and infrared speetrometry.The ultraviolet- visible light absorption spectrum of the asprepared N-TiO_2,film was measured,and its catalytic performance towards the degradation of miethylene blue(denoted as MB) solution under visible light irradiation was evaluated as well.Results indicated that N was able to inhibit the transformation from anatase TiO_2 to rutile TiO_2 As-prepared N-TiO_2 film was smooth and free of holes and cracks,while it exhibited significant photocatalytic activity towards the degradation of MB solution under visible light irradiation.
出处
《材料保护》
CAS
CSCD
北大核心
2014年第8期4-6,39,共4页
Materials Protection
基金
国家自然科学基金(51102131
51165032)
南昌市科技支撑计划(20110515090004398)
江西省高等学校科技创新团队资助项目(00008713)
党外专家博士产学研合作计划(2012-CYH-DW-XCL-002)资助
