化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (1) : 194-197.

科学研究

醇热法制备球形TiO₂及其光催化活性研究

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Glycol-thermal synthesis and photocatalysis of spherical TiO₂

Jiang Caiyun¹, Yan Weidong¹, Li Guoyu², Wang Qiong², Liu Jiaxun², Wang Yuping²

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Received
2017-09-01
Issue Date	Revised Date
2019-03-12	2017-09-01

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摘要

以钛酸四丁酯为钛源,乙醇和丙三醇混合液为溶剂,采用醇热法制备球形二氧化钛(TiO₂)。考察了丙三醇的用量对产物结构和性能的影响。以盐酸四环素为目标物,考察了制得的纳米TiO₂的光催化活性。研究结果表明:丙三醇与乙醇的体积配合比1:0.2制得的球形纳米TiO₂对盐酸四环素的光催化降解效果最佳,在纳米TiO₂光催化剂投加量为1g/L,盐酸四环素为0.1g/L,紫外光或模拟太阳光照2h条件下,对盐酸四环素的降解率分别达到98.58%和90.00%。

Abstract

The spherical TiO₂ was prepared by the glycol-thermal method,using tetra-butyl titanate as the titanium source,ethanol and glycerol as solvent.The influence of the ratio of glycerol on the structure and performance of products was investigated.The photocatalytic activity of TiO₂ was studied by photocatalytic degradation of tetracycline hydrochloride.The results indicated that the spherical nano TiO₂,prepared by the volume ratio of glycerol to ethanol 1:0.2 showed the optimal photocatalysis.When the dosage of nano-TiO₂ was 1g/L and the concentration of tetracycline hydrochloride was 0.1g/L,the degradation rate of tetracycline hydrochloride could reach to 98.58% and 90.00% under ultraviolet light or simulated sunlight for 2h,respectively.

关键词

醇热法 / TiO₂ / 丙三醇 / 光催化

Key words

glycol-thermal method / TiO₂ / glycerol / photocatalysis

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醇热法制备球形TiO₂及其光催化活性研究[J]. 化工新型材料, 2019, 47(1): 194-197 DOI:

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