化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (2) : 91-93.

新材料与新技术

TiO₂/SiO₂/石墨烯复合光催化剂的合成

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作者信息 +

Preparation of TiO₂/SiO₂/graphene composite photocatalyst

Bo Zhenting¹, Dong Rulin¹, Wang Xuhong², Zhang Hanping¹, Chen Zhidong¹, Jin Changchun¹

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文章历史 +

Received
2016-10-27
Issue Date	Revised Date
2018-03-13	2016-10-27

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摘要

以钛酸四正丁酯(TBOT)、氧化石墨烯、正硅酸四乙酯(TEOS)为原料,采用水热法合成了一系列二氧化钛(TiO₂)/二氧化硅(SiO₂)/石墨烯复合光催化剂,并对TiO₂/SiO₂/石墨烯复合光催化剂进行了表征。研究结果表明,随着SiO₂用量的增大,TiO₂/SiO₂/石墨烯复合光催化剂的比表面积及气孔直径增大,在石墨烯用量为1%(wt,质量分数),SiO₂用量为30%(摩尔百分数),10mg TiO₂/SiO₂/石墨烯复合光催化剂在80min内对亚甲基蓝(MB)溶液(10mg/L,40mL)的光催化降解率达到99.2%。

Abstract

A series of TiO₂/SiO₂/graphene composite photocatalysts were synthesized by hydrothermal method using tetrabutyl titanate (TBOT),graphene oxide and tetraethyl orthosilicate (TEOS) as starting raw materials,and the synthesized composites were characterized.The experimental results indicated that the specific surface area and pore diameter of composite catalyst increased with the increase of molar fraction of SiO₂.When the fraction of graphene was 1wt% and that of SiO₂ was 30% (mole fraction),the degradation rate of MB solution (10mg/L,40mL) catalyzed by 10mg photocatalyst for 80min reached 99.2%.

关键词

水热法 / TiO₂ / SiO₂ / 石墨烯 / 光催化

Key words

hydrothermal method / TiO₂ / SiO₂ / graphene / photocatalysis

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TiO₂/SiO₂/石墨烯复合光催化剂的合成[J]. 化工新型材料, 2018, 46(2): 91-93 DOI:

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