Synthesis and Characterisation of Porous Titania-Silica Composite Aerogel for NOx and Acetaldehyde Removal

被引：11
作者：
Lee, Kwang Young [1 ,2 ]
Park, Se Min [1 ,2 ]
Kim, Jong Beom [1 ,2 ]
El Saliby, Ibrahim [3 ]
Shahid, Mohammad [3 ]
Kim, Geon-Joong [4 ]
Shon, Ho Kyong [3 ]
Kim, Jong-Ho [1 ,2 ]
机构：
[1] Chonnam Natl Univ, Sch Appl Chem Engn, Gwangju 500757, South Korea
[2] Chonnam Natl Univ, Res Inst Catalysis, Gwangju 500757, South Korea
[3] UTS, Fac Engn & Informat Technol, POB 123, Broadway, NSW 2007, Australia
[4] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2016年 / 16卷 / 05期
基金：
新加坡国家研究基金会; 澳大利亚研究理事会;
关键词：
Titania; Photocatalysis; Silica; Acetaldehyde; NOx; SOL-GEL SYNTHESIS; SUPERHYDROPHOBIC SILICA; SURFACE MODIFICATION; PHYSICAL-PROPERTIES; AMBIENT-PRESSURE; MIXED OXIDES; TIO2-SIO2; WATER; NANOPARTICLES; PERFORMANCE;
D O I：
10.1166/jnn.2016.10997
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, the synthesis of porous titania-silica (TiO2-SiO2) composite aerogel at ambient pressure by using non-hazardous chemicals as a source of silica was investigated. TiO2-SiO2 composite aerogels were characterised and their photocatalytic performances were investigated for the removal efficiency of acetaldehyde and NOx under UV light. Results showed that porous composite aerogel with aggregated morphology, high surface area and an increased mesoporosity were formed. TiO2-SiO2(1.8) composite, with high Ti/Si ratio, showed the best results in terms of photocatalytic removal of acetaldehyde and nitrogen oxide.
引用
收藏
页码：4505 / 4511
页数：7
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