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CdS-TiO2复合光催化剂可见光下降解黄连素

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艾翠玲, 郭锐敏, 邵享文. CdS-TiO2复合光催化剂可见光下降解黄连素[J]. 环境化学, 2013, 32(3): 366-373. doi: 10.7524/j.issn.0254-6108.2013.03.005
引用本文: 艾翠玲, 郭锐敏, 邵享文. CdS-TiO2复合光催化剂可见光下降解黄连素[J]. 环境化学, 2013, 32(3): 366-373. doi: 10.7524/j.issn.0254-6108.2013.03.005
shu
AI Cuiling, GUO Ruimin, SHAO Xiangwen. Visible light induced photocatalytic degradation of the antibiotic berberine with CdS-TiO2 in suspension[J]. Environmental Chemistry, 2013, 32(3): 366-373. doi: 10.7524/j.issn.0254-6108.2013.03.005
Citation: AI Cuiling, GUO Ruimin, SHAO Xiangwen. Visible light induced photocatalytic degradation of the antibiotic berberine with CdS-TiO2 in suspension[J]. Environmental Chemistry, 2013, 32(3): 366-373. doi: 10.7524/j.issn.0254-6108.2013.03.005
shu

CdS-TiO2复合光催化剂可见光下降解黄连素

  • 1.

    福州大学土木工程学院,福建省光催化重点实验室-省部共建国家重点实验室培育基地, 福州, 350108

  • 基金项目:

    福建省光催化重点实验室-省部共建国家重点实验室培育基地基金项目资助.

Visible light induced photocatalytic degradation of the antibiotic berberine with CdS-TiO2 in suspension

  • 1.

    Fujian Provincial Key Laboratory of Photocatalysis-State Key Laboratory Breeding Base, College of Civil Engineering, Fuzhou University, Fuzhou, 350108, China

  • Fund Project:

  • 摘要: 采用沉积法制备CdS-TiO2复合光催化剂,利用UV-Vis DRS、XRD等方法对其进行表征,并在可见光下对黄连素废水进行处理,考察了催化剂投加量、黄连素初始浓度、黄连素初始pH值对黄连素去除率的影响.研究结果表明,在常温下制备的CdS-TiO2复合光催化剂,对可见光有较好的响应能力;在催化剂投加量1.5 gL-1,黄连素初始浓度80 mgL-1的条件下,催化剂对黄连素的去除效果显著,可达80%以上.pH对反应的影响不大.该催化剂循环使用3次仍具有较高的光催化活性与化学稳定性.
    Abstract: Composite photocatalyst consisting of CdS and TiO2 was fabricated in a deposited method. The resulting products were characterized by UV-Vis diffuse reflectance spectroscopy(DRS) and powder X-ray diffraction(XRD). This photocatalyst was studied under visible light irradiation for treating the antibiotic berberine solution. The effects of the dosage of catalyst, the initial concentration of berberine, the initial pH of berberine on the removal rate of berberine were investigated. The results indicated that the photocatalyst, which was produced under normal atmospheric temperature, showed a good respond to visible light. The optimal conditions were found at the dosage of catalyst 1.5 gL-1 when the initial concentration of berberine is 80 mgL-1. pH had little effect on the degradation reaction of berberine. The removal rate of berberine could reach 80%. The photocatalyst has stronger photocatalytic activity and stability in the third cycle.
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  • 收稿日期:  2012-05-03
艾翠玲, 郭锐敏, 邵享文. CdS-TiO2复合光催化剂可见光下降解黄连素[J]. 环境化学, 2013, 32(3): 366-373. doi: 10.7524/j.issn.0254-6108.2013.03.005
引用本文: 艾翠玲, 郭锐敏, 邵享文. CdS-TiO2复合光催化剂可见光下降解黄连素[J]. 环境化学, 2013, 32(3): 366-373. doi: 10.7524/j.issn.0254-6108.2013.03.005
shu
AI Cuiling, GUO Ruimin, SHAO Xiangwen. Visible light induced photocatalytic degradation of the antibiotic berberine with CdS-TiO2 in suspension[J]. Environmental Chemistry, 2013, 32(3): 366-373. doi: 10.7524/j.issn.0254-6108.2013.03.005
Citation: AI Cuiling, GUO Ruimin, SHAO Xiangwen. Visible light induced photocatalytic degradation of the antibiotic berberine with CdS-TiO2 in suspension[J]. Environmental Chemistry, 2013, 32(3): 366-373. doi: 10.7524/j.issn.0254-6108.2013.03.005
shu

CdS-TiO2复合光催化剂可见光下降解黄连素

  • 1. 福州大学土木工程学院,福建省光催化重点实验室-省部共建国家重点实验室培育基地, 福州, 350108
  • 收稿日期:  2012-05-03
基金项目:

福建省光催化重点实验室-省部共建国家重点实验室培育基地基金项目资助.

摘要: 采用沉积法制备CdS-TiO2复合光催化剂,利用UV-Vis DRS、XRD等方法对其进行表征,并在可见光下对黄连素废水进行处理,考察了催化剂投加量、黄连素初始浓度、黄连素初始pH值对黄连素去除率的影响.研究结果表明,在常温下制备的CdS-TiO2复合光催化剂,对可见光有较好的响应能力;在催化剂投加量1.5 gL-1,黄连素初始浓度80 mgL-1的条件下,催化剂对黄连素的去除效果显著,可达80%以上.pH对反应的影响不大.该催化剂循环使用3次仍具有较高的光催化活性与化学稳定性.

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