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[1]石康中,杨祝红,涂睿,等.从钛酸盐制备介孔锐钛/金红石型双晶TiO2及其光催化性能[J].南京工业大学学报(自然科学版),2013,35(01):1-30.[doi:10.3969/j.issn.1671-7627.2013.01.007]
 SHI Kangzhong,YANG Zhuhong,TU Rui,et al.Synthesis and characterization of mesoporous anatase/rutile TiO2 from potassium titanate[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(01):1-30.[doi:10.3969/j.issn.1671-7627.2013.01.007]
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从钛酸盐制备介孔锐钛/金红石型双晶TiO2及其光催化性能()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
35
期数:
2013年01期
页码:
1-30
栏目:
出版日期:
2013-01-20

文章信息/Info

Title:
Synthesis and characterization of mesoporous anatase/rutile TiO2 from potassium titanate
文章编号:
1671-7627(2013)01-0030-06
作者:
石康中杨祝红涂睿李东李力成朱育丹陆小华
南京工业大学 化学化工学院 材料化学工程国家重点实验室,江苏 南京 210009
Author(s):
SHI Kangzhong YANG Zhuhong TU Rui LI Dong LI Licheng ZHU Yudan LU Xiaohua
State Key Laboratory of Materials-Oriented Chemical Engineering,College of Chemistry Science and Engineering, Nanjing University of Technology, Nanjing 210009, China
关键词:
介孔TiO2 锐钛 金红石 光催化 稳定性
Keywords:
mesoporous TiO2 anatase rutile photocatalytic stability
分类号:
O643
DOI:
10.3969/j.issn.1671-7627.2013.01.007
文献标志码:
A
摘要:
以二钛酸钾(K2Ti2O5)经离子交换得到的二钛酸(H2Ti2O5·xH2O)为原料,与NH4Cl-HCl溶液在150 ℃进行水热反应,制备出介孔锐钛/金红石型双晶TiO2。通过X线衍射仪(XRD),场发射扫描电子显微镜(FE-SEM)、低温N2吸附-脱附以及紫外拉曼等对试样进行表征,并考察TiO2光催化剂降解甲基橙的活性及其稳定性。结果表明:金红石质量分数为22.6%时的介孔双晶TiO2的活性最高,是商业纳米TiO2(A91)的2.6倍,并与商用TiO2催化剂P25的活性相当。此外,介孔双晶TiO2经10次循环使用后,活性为新鲜催化剂的92%,其具备的微米尺寸形貌更容易回收再利用,具有潜在的工业应用价值。
Abstract:
Mesoporous anatase/rutile TiO2 was synthesized by hydrothermal treatment of titanic acid hydrate(H2Ti2O5·xH2O)from potassium titanate(K2Ti2O5)via ion-exchange and NH4Cl-HCl in aqueous solution at 150 ℃. The catalyst samples were characterized by X-ray diffraction(XRD), field emission scanning electron microscopy(FE-SEM), N2 adsorption-desorption measurements and Raman spectra. Results indicated that when the rutile content was 22.6%, the mesoporous bicrystalline TiO2 and Degussa P25 showed similar degradation behavior toward methyl orange(MO), and was 2.6 times of commercial anatase(A91). Furthermore, it was easily recycled, and maintained 92% of its initial activity after reused being 10 times, so it would be a potential catalyst for engineering application.

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[1]杨祝红,王艳芳,庄伟,等.介孔TiO2的孔结构调控及其蛋白质固定化性能[J].南京工业大学学报(自然科学版),2012,34(06):7.[doi:doi:10.3969/j.issn.1671-7627.2012.06.002]
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备注/Memo

备注/Memo:
收稿日期:2011-11-26
基金项目:973计划前期研究专项课题(2009CB226103); 国家自然科学基金(20976080); 教育部创新团队(IRT0732); 中国博士后科学基金(20110491407)
作者简介:石康中(1987—),男,安徽六安人,硕士生,主要研究方向为TiO2功能材料的制备; 杨祝红(联系人),副研究员,E-mail: zhhyang@njut.edu.cn..
更新日期/Last Update: 2013-01-20