【摘 要】
:
用溶胶-凝胶法将纳米TiO2:Sb薄膜沉积在玻璃基板上.通过XRD、Raman光谱研究了Sb掺杂量对薄膜的晶体结构和晶相转变的影响.结果表明:纯TiO2溥膜中,TiO2不仅以无定型念存在,而
【机 构】
:
复旦大学材料科学系,贵州民族学院计算机网络中心
【基金项目】
:
贵州省教育厅科研项目;教育部资助项目
论文部分内容阅读
用溶胶-凝胶法将纳米TiO2:Sb薄膜沉积在玻璃基板上.通过XRD、Raman光谱研究了Sb掺杂量对薄膜的晶体结构和晶相转变的影响.结果表明:纯TiO2溥膜中,TiO2不仅以无定型念存在,而且还以板钛矿和锐钛矿的形式存在.掺入适量的Sb后,由于Sb替代了TiO2的部分Ti形成Sb-O-Ti结构,改变了TiO2的晶格结构,改善了薄膜的结晶效率,使锐钛矿结构的TiO2:Sb含量明显提高.掺杂0.2%Sb时,薄膜的结晶效率最高.254 nm光源照射时,掺杂0.2%Sb的电极的阳极光电流密度可达42.49 μA/cm2,是用同种方法制备的纯TiO2薄膜电极的近11倍;对亚甲基蓝具有最高分解性能,其一级反应速率常数为0.171 h/cm2,是未掺杂的纯TiO2薄膜的近2倍.
其他文献
The status of current knowledge on size-dependent aerosol removal by dry and wet processes, including dry deposition and impaction and nucleation scavenging, is
The title compound,2-tert-butyl-5(4-tert-butylbenzylthio)-4-chloropyridazin-3(2H)-one, was synthesized from 1-tert-butylhydrazine, (Z)-2,3-dichloro-3-formylacry
Heteroclinic bifurcations in four dimensional vector fields are investigated by setting up a local coordinates near a rough heteroclinic loop. This heteroclinic
Chloromethylation of polystyrene (PS) with two different chloromethylating systems methylal/thionyl chloride and paraformaldehyde/trimethylchlorosilane was stud
High purity polysaccharide of pachyman was isolated from the powder of Poria cocos sclerotium with an yield of 77.8%. The intrinsic viscosity of polysaccharide
Metal content and bioavailability are often the limiting factors for application of sewage sludge in agricultural fields.Sewage sludge samples were collected fr
The trinuclear complex bis(18-crown-6)thallium tetracyanoplatinate [Tl2(18-crown- 6)2Pt(CN)4]·2H2O was prepared and its structure was determined by X-ray diffr
An N-hydroxyl peptide unit of H-L-Pro-L-Ala-L-Ala-β-(BnO)Ala-OMe was synthesized by stepwise chain building method in solution. Then, based on nitrilotriacetic
The behavior of a thin curved hyperelastic film bonded to a fixed substrate is described by an energy composed of a nonlinearly hyperelastic energy term and a d
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7