Inorganic Chemicals Industry >
Study on influence factors of specific surface area of Ti-Si composite oxides
Received date: 2020-06-14
Online published: 2020-12-15
TiO2-SiO2 composite oxide was prepared by sol-gel method using inorganic salts.The surface area of composite oxide materials was tested and analyzed by N2-adsorption method,and the factors,such as ratio of raw materials,feeding ways,surface active agent,reaction temperature,aging temperature,aging time and calcination temperature etc.,on the specific surface area of composite oxide were investigated.Results showed that when the mass fraction of TiO2 was 22%,additive was CTAB,reaction temperature was 30 ℃,aging temperature was 70 ℃,aging time was 1 h and calcination temperature was 150 ℃,then the specific surface area of prepared composite oxide was 361.4 m2/g,pore volume was 1.18 cm3/g and the average pore size was 13.0 nm.Different factors all had certain influence on the surface area,the composite oxide pore structure can controlled according to rules.
Key words： titanium silicon; composite oxide; specific surface area
Qiushuang Guo , Tongxu Wu , Zhe Cai , Qi Cai , Xiaoyun Li , Yanmin Sun . Study on influence factors of specific surface area of Ti-Si composite oxides[J]. Inorganic Chemicals Industry, 2020 , 52(12) : 109 -112 . DOI: 10.11962/1006-4990.2020-0016
| [1] | 张朋, 郭建生. 纳米TiO2/SiO2复合氧化物的制备及其性能研究[J]. 上海纺织工业, 2015,43(12):31-35. |
| [2] | 冷小威. TiO2/SiO2复合气凝胶的制备及表征[D]. 大连:大连工业大学, 2010. |
| [3] | 侯磊鑫. 纳米金红石型TiO2-SiO2的制备及改性研究[D]. 太原:山西大学, 2017. |
| [4] | Xu Weiwei, Du Ai, Zhou Bin, et al. A facile preparation route to homogeneous metal-silicon mixed oxide aerogels with contain silica as the major phase[J]. Rare Metal Materials and Engineering, 2016,45(1):530-534. |
| [5] | 李莎. 介孔复合氧化物的合成及酸催化应用[D]. 杭州:浙江大学, 2014. |
| [6] | 周鹏, 郭秋双, 于海斌, 等. 孔结构可控的钛硅复合氧化物介孔材料的研究及其在光催化降解罗丹明B中的应用[J]. 无机盐工业, 2019,51(7):93-99. |
| [7] | Tian B, Liu X Y, Tu B, et al. Self-adjusted synjournal of ordered stable mesoporous minerals by acid-base pairs[J]. Nature Materials, 2003,2(3):159-163. |
| [8] | 侯隽, 许影, 田从学, 等. 微孔-介孔钛硅氧化物复合材料的合成与表征[J]. 硅酸盐学报, 2007,35(4):435-441. |
/
| 〈 |
|
〉 |