Sepiolite fiber reinforced TiO2/SiO2 composite aerogel based on CTAB "template" effect

被引：2
作者：
Shang, Zexin [1 ]
Lei, E. [1 ,2 ]
Chen, Yanan [1 ,2 ]
Zhao, Dan [1 ,2 ]
Wei, Yu [1 ]
Chai, Qian [1 ]
Wei, Hao [1 ]
Zhao, Yaoyu [1 ]
机构：
[1] Tianjin Chengjian Univ, Sch Mat Sci & Engn, Tianjin 300384, Peoples R China
[2] Tianjin Chengjian Univ, Tianjin Key Lab Bldg Green Funct Mat, Tianjin 300384, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2024年 / 35卷 / 29期
关键词：
PHOTOCATALYTIC DEGRADATION; SILICA AEROGELS; TIO2; CATALYST;
D O I：
10.1007/s10854-024-13564-7
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
TiO2/SiO2 composite aerogel was prepared by sol-gel method with atmospheric pressure drying. However, the aerogel suffered from poor structural strength, and in most cases, they lost their shape under thermal stress. Herein, a novel strategy that improved the structure chunkiness and photocatalytic activity of aerogel was proposed. The formation process of sepiolite fiber-reinforced TiO2/SiO2 composite aerogel explored effect of hexadecyl trimethyl ammonium bromide (CTAB) as a "template" on the physicochemical properties of aerogel and the toughened mechanism of sepiolite fiber in gel network. The synergistic effect of CTAB, sepiolite fiber and TiO2/SiO2 composite aerogel is conducive to optimizing the structure of aerogel and improving the photocatalytic degradation efficiency. The results showed that sepiolite fiber-reinforced TiO2/SiO2 composite aerogel not only had good chunk formation, but also enhanced the photocatalytic activity of rhodamine B (Rh B) solution by three times under ultraviolet (UV) irradiation.
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页数：12
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