碳量子点/TiO2复合材料的制备及性能研究

李胜英, 郭呈若, 李富丽, 陈慧文, 王基成

化工新型材料 ›› 2019, Vol. 47 ›› Issue (2) : 90 -93.

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化工新型材料 ›› 2019, Vol. 47 ›› Issue (2) : 90-93.
新材料与新技术

碳量子点/TiO2复合材料的制备及性能研究

    李胜英, 郭呈若, 李富丽, 陈慧文, 王基成
作者信息 +

Preparation and property of CQDs /TiO2 composite

  • Li Shengying, Guo Chengruo, Li Fuli, Chen Huiwen, Wang Jicheng
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摘要

以丙三醇为碳源采用一步微波法制备碳量子点(CQDs)溶液;以四氯化钛和硅酸钠为钛源和硅源用水解法制备二氧化钛(TiO2)/二氧化硅(SiO2),TiO2/SiO2经强碱刻蚀后加入CQDs溶液进行真空复合制备CQDs/TiO2复合材料。并对CQDs/TiO2进行形貌结构表征,同时探讨CQDs/TiO2在普通白炽灯照射下对亚甲基蓝的降解吸附效果。在普通白炽灯照射条件下,0.1g CQDs/TiO2对25mL 20mg/L的亚甲基蓝溶液吸附降解率达到90.36%,比TiO2/SiO2和TiO2的降解率分别提高3.141倍和0.2261倍。

Abstract

Used glycerol as carbon source,carbon quantum dots' s solution(CQDs) was prepared by one-step microwave,and TiO2/SiO2 was prepared by hydrolysis with titanium and silicon source whose raw matetials were titanium tetrachloride and sodium silicate,at last CQDs/TiO2 composite materials were prepared by reaction of TiO2 which was etched by alkali and carbon quantum solution at vacuum.The morphology and structure of CQDs/TiO2 were characterized,at the same time,the adsorption and degradation of CQDs/TiO2 on the methylene blue under the irradiation of common incandescent lamp were investigated.The adsorption-degradation of methylene blue at 0.1g CQDs/TiO2 on 25mL 20mg/L solution could reach to 90.36% under common incandescent lamp,which was increased by 3.141 times and 0.2261 times than that of original TiO2/SiO2 and TiO2.

关键词

二氧化钛 / 碳量子点 / 降解

Key words

titanium dioxide / carbon quantum dot / degradation

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碳量子点/TiO2复合材料的制备及性能研究[J]. 化工新型材料, 2019, 47(2): 90-93 DOI:

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基金资助

广西高校中青年教师基础能力提升项目(2018KY0504);广西高校微生物及植物资源开发利用重点实验室(2017HL001);2017年自治区级大学生创新创业计划项目(201710605089)

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