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with good crystallinity proceeded through three stages. Calcining Ti2O2(OH)2(C2O4)·H2O, anatase (350°C) or rutile (550°C) type TiO2 was obtained, respectively. Element analysis found that the calcined product contained 94.9% TiO2 and 2.5% iron oxide, but only about 1600 ppm dissolvable iron oxide was left, which indicates that oxalic acid was comparatively effective on iron oxide removal from......
Effect of Ho-doping on photocatalytic activity of nanosized TiO2 catalyst YU Lin1,LIU Guoguang2,LI Daguang1,LI Xiaoxia3,Lü Wenying2,CAI Heshan1 (1.Department of Resource and Environment,Foshan... anatase to ruffle, suppress the growth of TiO2 grains, cause blue shift of the absorption spectrum edge, accelerate surface hydroxylation, and enhance the separation efficiency of photoinduced electron......
; TiO2(锐钛矿型); Electrochromic; Nanostmctured electrode; Viologen; Titanium dioxide (anatase); [全文内容正在添加中] ...一种新型基于纳米TiO2薄膜的电子纸器件 李天军1,冯涛1,钱敏1,孙卓1,潘丽坤1,林丽锋1,陈奕卫1,丁慧1 (1.华东师范大学纳光电集成与先进装备教育部工程研究中心,上海,200062) 摘要:近年来,在电致变色领域基于甲基紫精修饰高比表面积的纳米TiO2薄膜电极取得了巨大的进步,并将这项技术推向商业化.本文介绍了一种由有机变色分子修饰纳米晶TiO2薄膜电极而组装成的电致变色器件,通......
773 K to mixed anatase /rutile (873 K and 973 K), but at 973 K, rutile is the main phase when doping La in TiO2. The peak intensities of anatase increase and the width of the (101) plane diffraction..., the prepared pure TiO2 are an anatase /rutile mixture (773 and 873 K), and the rutile phase starts to appear at 973 K. However, the diffraction peak (La2O3) of La doping in the XRD patterns......
diffraction and their surface images were detected by using scan electronic microscope. There were three kinds of TiO2 coatings, pure anatase type TiO2 phase, mixed phases consisted of rutile type TiO2 phase and anatase type TiO2 phase, pure rutile type TiO2 phase. The coating surface with the pure anatase type TiO2 phase is rough, while the coating surface with the pure rutile type TiO2phase is smooth......
and ferromagnetic in Mn-doped anatase TiO2 nanowires LI Hong-mei(李红梅)1, 2, LIU Min(刘敏)1, 2, ZENG Yang-su(曾阳素)1, 2, HUANG Tong-cheng(黄同成)1, 2 1. Department of Information Engineering, Shaoyang University... anatase structure. SEM and TEM studies show that the diameter and the length of the Mn-doped TiO2 NWs are larger than those of the undoped TiO2 NWs. Energy dispersive X-ray spectroscopy (EDX) reveals......
分子自组装制备的掺杂WO3的TiO2光催化薄膜的表征 张俊英1,郝维昌1,潘锋1,郑树凯2,王天民1 (1.北京航空航天大学,北京,100083;2.北京化工大学,北京,100029) 摘要:利用分子自组装技术在载波片上制备了锐钛相TiO2及WO3掺杂的TiO2薄膜.利用原子力显微镜(AFM)和UV-VIS-NIR分光光度计对薄膜进行了表征.利用对罗丹明B的降解评价了所制备薄膜的光催化活性.结果表明:当W/Ti=2at%时,TiO2薄膜的光催化活性得到提高. 关键词:TiO2薄膜; WO3掺杂; 光催化活性; TiO2 thin film; WO3 doping; Photocatalytic activity; [全文内容正在添加中] ......
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J. Cent. South Univ. Technol. (2010) 17: 1139-1143 DOI: 10.1007/s11771-010-0609-y Influence of Ti4+ doping on hyperfine field parameters of Mg0.95Mn0.05Fe2-2xTi2xO4 (0≤x≤0.7) KUMAR S1, PRAKASH R2...+ doping was studied by using the M?ssbauer spectroscopy measurements at room temperature. From the analysis of the M?ssbauer spectra, it is observed that s-electron density, electric field gradient (EFG......
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