详细信息
溶胶-凝胶及水热法制备掺杂铁、铬离子的二氧化钛光催化剂(英文)
Fe^(3+),Cr^(3+)-doped TiO_2 Photocatalysts Preparedby the Sol-Gel and Hydrothermal Method
文献类型:期刊文献
中文题名:溶胶-凝胶及水热法制备掺杂铁、铬离子的二氧化钛光催化剂(英文)
英文题名:Fe^(3+),Cr^(3+)-doped TiO_2 Photocatalysts Preparedby the Sol-Gel and Hydrothermal Method
作者:朱杰芳[1];傅文[1];何斌[1];张金龙[1]
机构:[1]华东理工大学精细化工研究所,上海200237
年份:2004
卷号:22
期号:4
起止页码:241
中文期刊名:感光科学与光化学
外文期刊名:Photographic Science and Photochemistry
收录:CSTPCD;;Scopus;北大核心:【北大核心2000】;CSCD:【CSCD2011_2012】;
基金:上海市教委资助项目
语种:中文
中文关键词:TiO2;光催化剂;溶胶-凝胶法;水热处理;掺杂
外文关键词:titanium dioxide; photocatalyst; sol-gel; hydrothermal treatment; doping
摘要:通过溶胶 凝胶法结合水热处理制备了掺杂铁或铬离子的纳米尺寸锐钛矿型TiO2光催化剂.用XRD、BET、TEM、EPR和UV VisDRS对样品进行了系列表征.在对活性偶氮染料XRG的降解中,可见光激发下适量掺杂的TiO2呈现出优于纯TiO2和P25的活性,同时掺杂并未降低其在紫外光激发下的活性.
Fe^(3+),Cr^(3+)-doped anatase nanosized TiO_2 photocatalysts have been prepared by combining sol-gel method with hydrothermal treatment.The samples were characterized by XRD,BET,TEM,EPR and UV-Vis diffuse reflectance spectra(DRS).For the liquid phase photocatalytic decolorization of XRG,the photoactivity of TiO_2 doped with appropriate content of Fe^(3+)or Cr^(3+)exceeded those of non-doped TiO_2 and P25(Degussa)under visible light irradiation,meanwhile their photoactivity under UV excitation was not reduced by doping.
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