高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (3): 489-498.doi: 10.7503/cjcu20180596

• 物理化学 • 上一篇    下一篇

核壳结构CdS/CuS纳米复合材料的制备及光催化性能

张克杰1,2(), 李宇1, 夏源1, 韩烁1, 曹静1, 王瀚漾1, 罗文韬1, 周志萍3   

  1. 1. 南京工程学院材料科学与工程学院, 南京211167
    2. 江苏省先进结构材料与应用技术重点实验室, 南京 211167
    3. 南京大学化学化工学院, 南京 210023
  • 收稿日期:2019-08-27 出版日期:2019-01-24 发布日期:2019-01-24
  • 作者简介:

    联系人简介: 张克杰, 女, 博士, 副教授, 主要从事无机纳米复合材料研究. E-mail: zhangkejie2003@163.com

  • 基金资助:
    国家自然科学基金(批准号: 21603101)和南京工程学院创新基金(批准号: CKJA201303, TB201802035, TB201802038)资助.

Synthesis and Photocatalytic Performance of CdS/CuS Core-shell Nanocomposites

ZHANG Kejie1,2,*(), LI Yu1, XIA Yuan1, HAN Shuo1, CAO Jing1, WANG Hanyang1, LUO Wentao1, ZHOU Zhiping3   

  1. 1. School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China
    2. Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Nanjing 211167, China
    3. School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
  • Received:2019-08-27 Online:2019-01-24 Published:2019-01-24
  • Contact: ZHANG Kejie E-mail:zhangkejie2003@163.com
  • Supported by:
    † Supportted by the National Natural Science Foundation of China(No.21603101) and the Innovation Fund of Nanjing Institute of Technology, China(Nos.CKJA201303, TB201802035, TB201802038).

摘要:

以乙酸镉、 2-巯基苯并噻唑、 硫化钠和氯化铜为原料, 依次利用液相热分解与离子吸附法, 改变CdS晶化时间及含量, 制备了4种CdS/CuS纳米复合材料. 研究结果表明: CdS/CuS纳米复合材料呈类球形核壳结构, 改变CdS晶化时间可以控制CdS/CuS纳米复合材料粒径大小; CdS的晶化时间为10 min, CdS与CuS摩尔比为4∶1的纳米复合材料光催化活性最佳, 25 min内对RhB和MB的降解效率均达到99%.

关键词: 硫化镉/硫化铜, 纳米复合材料, 光催化, 降解效率

Abstract:

Four CdS/CuS core-shell nanocomposite samples with different molar ratios of CdS to CuS were synthesized via liquid-phase thermal decomposition and ion adsorption method under different crystallization time of CdS, using cadmium acetate, 2-mercaptobenzothiazole, sodium sulfide and cupric chloride as the raw materials. The experimental results indicated that the samples were spherical nucleus-like structures and their particle size was controllable with the crystallization time of CdS. The degradation efficiencies of rhodamine B(RhB) and methylene blue(MB) both reached about 99% when the molar ratio of CdS to CuS was 4∶1 and the crystallization time of CdS was 10 min. The method of ion adsorption makes CuS fully coat on the surface of CdS, forming effective core-shell structure and obviously improving the photocatalytic performance of CdS.

Key words: CdS/CuS, Nanocomposite, Photocatalysis, Degradation efficiency

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