Preparation of monolithic titania aerogels with high surface area by a sol-gel process combined surface modification

被引：31
|
作者：
Yang, Hui [1 ]
Zhu, Wenjun [1 ]
Sun, Sai [1 ]
Guo, Xingzhong [1 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310003, Zhejiang, Peoples R China
来源：
RSC ADVANCES | 2014年 / 4卷 / 62期
基金：
中国国家自然科学基金;
关键词：
26;
D O I：
10.1039/c4ra03812f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Monolithic titania (TiO2) aerogels with high surface area were successfully synthesized by the sol-gel process combined surface modification, followed by ambient pressure drying to remove the solvents from the gels. The effects of surface modification used polyethylene glycol (PEG) 2000 as surfactant on the gelation and microstructure of the aerogel were studied in detail. The resultant aerogel with the PEG 2000:TBOT (molar ratio) of 0.005 exhibits specific surface area as high as 495 m(2) g(-1), apparent density of 0.716 g cm(-3) and porosity of 81.6%. The crystallization of aerogels after heat-treatment does not spoil the monolithic shape and morphology of the aerogel basically, and the specific surface area still keeps a relatively high value of 209 m(2) g(-1). The facile route provides a low-cost strategy for the preparation of metal oxide aerogels with high surface area.
引用
收藏
页码：32934 / 32940
页数：7
相关论文
共 50 条
  • [31] Preparation of TiO2 aerogels by a sol-gel combined solvothermal route
    Zhao, Zhongqiang
    Jiao, Xiuling
    Chen, Dairong
    JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (19) : 3078 - 3083
  • [32] Sol-gel preparation of low oxygen content, high surface area silicon nitride and imidonitride materials
    Sardar, Kripasindhu
    Bounds, Richard
    Carravetta, Marina
    Cutts, Geoffrey
    Hargreaves, Justin S. J.
    Hector, Andrew L.
    Hriljac, Joseph A.
    Levason, William
    Wilson, Felix
    DALTON TRANSACTIONS, 2016, 45 (13) : 5765 - 5774
  • [33] PREPARATION OF HYDROPHOBIC SURFACE BASED ON HYBRID SILICA FILMS BY SOL-GEL PROCESS
    Spataru, Catalin Ilie
    Purcar, Violeta
    Donescu, Dan
    Ghiurea, Marius
    Cinteza, Otilia
    Miclaus, Teodora
    UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE, 2013, 75 (04): : 117 - 128
  • [34] Preparation of hydrophobic surface based on hybrid silica films by sol-gel process
    Spataru, Catalin Ilie
    Purcar, Violeta
    Donescu, Dan
    Ghiurea, Marius
    Cinteza, Otilia
    Miclauš, Teodora
    UPB Scientific Bulletin, Series B: Chemistry and Materials Science, 2013, 75 (04): : 117 - 128
  • [35] The synthesis of microporous and mesoporous titania with high specific surface area using sol-gel method and activated carbon templates
    Loryuenyong, Vorrada
    Buasri, Achanai
    Srilachai, Chonticha
    Srimuang, Hathaichanok
    MATERIALS LETTERS, 2012, 87 : 47 - 50
  • [36] THE SYNTHESIS OF NIOBIA AND TITANIA AS HIGH-SURFACE-AREA AEROGELS
    KO, EI
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1992, 203 : 38 - IEC
  • [37] Synthesis of High Surface Area Porous Silicon Carbide by Employing Soft Template in the Sol-Gel Process
    Wang, Dong-Hua
    Fu, Xin
    MANUFACTURING PROCESSES AND SYSTEMS, PTS 1-2, 2011, 148-149 : 1629 - 1633
  • [38] High surface area porous silicon carbide synthesized via sol-gel and carbothermal reduction process
    Wang, Dong-Hua
    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2011, 13 (2-4): : 218 - 222
  • [39] High surface area porous silicon carbide synthesized via sol-gel and carbothermal reduction process
    Wang, Dong-Hua
    Journal of Optoelectronics and Advanced Materials, 2011, 13 (03): : 218 - 222
  • [40] Preparation of superhydrophobic surface with a novel sol-gel system
    Su, Dong
    Huang, Chengya
    Hu, You
    Jiang, Qiangwei
    Zhang, Long
    Zhu, Yunfeng
    APPLIED SURFACE SCIENCE, 2011, 258 (02) : 928 - 934
12345