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材料工程  2019, Vol. 47 Issue (9): 139-144    DOI: 10.11868/j.issn.1001-4381.2017.000933
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
CTAB作用下TiO2/g-C3N4的制备及光催化降解偏二甲肼废水
曾宝平, 贾瑛, 许国根, 李明, 冯锐
火箭军工程大学, 西安 710025
Preparation of TiO2/g-C3N4 by CTAB-assisted and photocatalytic degradation of unsymmetrical dimethylhydrazine waste water
ZENG Bao-ping, JIA Ying, XU Guo-gen, LI Ming, FENG Rui
Rocket Force University of Engineering, Xi'an 710025, China
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摘要 在十六烷基三甲基溴化铵(CTAB)作用下,采用水热合成法制备TiO2/g-C3N4复合材料,研究CTAB对复合材料结构及光谱性质的影响。采用XRD、TEM、N2吸附-脱附、FT-IR、UV-Vis DRS、PL等测试手段对材料进行表征,并在可见光下进行光催化降解偏二甲肼(UDMH)废水实验。结果表明:在CTAB作用下合成的TiO2/g-C3N4复合材料晶型结构完整,TiO2粒径更小并且在g-C3N4片层上均匀分布,具有较大的比表面积和丰富的介孔结构,复合材料的光吸收带边拓展至450nm,光生空穴-电子复合率明显降低。光催化实验表明,可见光条件下反应120min,UDMH的去除率达到了83.2%,相比未添加CTAB制备的TiO2/g-C3N4提升了13.7%。
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曾宝平
贾瑛
许国根
李明
冯锐
关键词 CTABTiO2/g-C3N4光催化偏二甲肼    
Abstract:The TiO2/g-C3N4 composites were prepared by the hydrothermal method with cetyltrimethyl ammonium bromide (CTAB). The influence of CTAB on the structural properties and spectral properties of the composites was studied. The samples were characterized by XRD, TEM, N2 adsorption-desorption, FT-IR, UV-Vis DRS and PL, meanwhile, the samples were used to degrade unsymmetrical dimethyl hydrazine (UDMH) wastewater under visible light. The results show that the crystal structure of TiO2/g-C3N4 composites assisted by CTAB is intact,with smaller particle size of nanoparticles and uniformly distributed on g-C3N4 sheets. The specific surface area of the composites increases and the mesoporous is more abundant, the adsorption ledge of the composites is expanded to 450nm, the recombination rate of hole-electron reduces obviously. Photocatalytic results show that the UDMH degradation efficiency of TiO2/g-C3N4 (CTAB) reaches 83.2% in 120min, which is improved by 13.7% than that of the no CTAB-assisted composites.
Key wordsCTAB    TiO2/g-C3N4    photocatalysis    unsymmetrical dimethylhydrazine
收稿日期: 2017-07-20      出版日期: 2019-09-18
中图分类号:  X506  
基金资助: 
通讯作者: 贾瑛(1968-),女,教授,博士,主要从事特种能源污染控制方面的研究工作,联系地址:陕西省西安市灞桥区同心路2号火箭军工程大学(710025),E-mail:1668747971@qq.com     E-mail: 1668747971@qq.com
引用本文:   
曾宝平, 贾瑛, 许国根, 李明, 冯锐. CTAB作用下TiO2/g-C3N4的制备及光催化降解偏二甲肼废水[J]. 材料工程, 2019, 47(9): 139-144.
ZENG Bao-ping, JIA Ying, XU Guo-gen, LI Ming, FENG Rui. Preparation of TiO2/g-C3N4 by CTAB-assisted and photocatalytic degradation of unsymmetrical dimethylhydrazine waste water. Journal of Materials Engineering, 2019, 47(9): 139-144.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2017.000933      或      http://jme.biam.ac.cn/CN/Y2019/V47/I9/139
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