Photocatalytic activity of nanocrystalline TiO2(B) synthesized from titanium glycolate complex by hydrothermal method
Photocatalytic activity of nanocrystalline TiO2(B) synthesized from titanium glycolate complex by hydrothermal method
复制标题
DOI：
10.2109/jcersj2.117.347
复制
发表时间：
2009-03-01
影响因子：
1.1
通讯作者：
Kakihana, Masato
中科院分区：
文献类型：
--
作者：
Yamamoto, Kazuhiro;Shimoita, Hironori;Kakihana, Masato
以乙醇酸钛配合物([Ti-4(C2H2O3)(4)(C2H3O3)(2)(O-2)（4)O-2](6-)）为原料，在H2SO4存在下，在473 K下水热处理1 ~ 72 h，制备了二氧化钛（TiO2）多晶型物之一TiO2(B)的亚稳相。通过x射线衍射（XRD）和透射电子显微镜（TEM）表征，所得样品由单相TiO2(B)组成，颗粒呈片状形貌。将合成后的水热晶体生长（PHCG）应用于制备的样品后，获得了更厚的片状颗粒。通过水热处理获得的样品和随后的PHCG后的光催化活性进行了甲醇分解的评价。(C) 2009日本陶瓷学会。版权所有。
The metastable phase of TiO2(B), one of the polymorphs of titanium dioxide (TiO2), was prepared by a hydrothermal treatment of a titanium glycolate complex ([Ti-4(C2H2O3)(4)(C2H3O3)(2)(O-2)(4)O-2](6-)) at 473 K for 1-72 h in the presence of H2SO4. Characterization by X-ray diffraction (XRD) and transmission electron microscopy (TEM) revealed that the obtained samples were composed of single phase TiO2(B) and the particles had plate-like morphology. After post-synthetic hydrothermal crystal growth (PHCG) applied to the as-prepared sample, thicker plate-like shaped particles were obtained. The photocatalytic activities of the samples obtained by the hydrothermal treatment and after the subsequent PHCG were evaluated in terms of methanol decomposition. (C) 2009 The Ceramic Society of Japan. All rights reserved.