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无机盐离子对Bi2WO6可见光催化剂去除水中四环素的光敏化作用
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科技导报 |研究论文 2018 , 36 (8) : 71 -78
无机盐离子对Bi2WO6可见光催化剂去除水中四环素的光敏化作用
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张译心1, 马春萌2, 柳鹏1, 冯立民1, 张凤君1
作者信息
    1. 吉林大学环境与资源学院, 长春 130021;
    2. 中国科学院生态环境研究中心, 北京 100049
通讯作者:
张凤君(通信作者),教授,研究方向为水处理技术,电子信箱:zhang-fengjun@jlu.edu.cn
作者简介:
张译心,硕士研究生,研究方向为水处理,电子信箱:820995633@qq.com
Effect of inorganic salts on photosensitization and degradation of tetracycline by photocatalysis using Bi2WO6 as the catalyst
  • ZHANG Yixin1, MA Chunmeng2, LIU Peng1, FENG Limin1, ZHANG Fengjun1
  • Affiliations
      1. College of Environment and Resources, Jilin University, Changchun 130021, China;
      2. Ecological Environment Research Center, Chinese Academy of Sciences, Beijing 100049, China
    出版时间: 2018-04-28 doi: 10.3981/j.issn.1000-7857.2018.08.008
    文章导航
    收藏切换
    以Bi2WO6作为催化剂的光催化反应对废水中四环素的去除具有较好效果。为通过直接在光催化反应中加入光敏化剂的方法,进一步提高Bi2WO6光催化剂对四环素废水的处理效率,本研究制备了Bi2WO6催化剂并进行了XRD和SEM表征分析,探究了其晶型结构和形貌特征;研究了无机盐离子光敏化剂的阴阳离子、光敏化剂加入量、四环素初始浓度、四环素溶液初始pH值5个因素对四环素去除的影响。结果表明,光催化剂成功制备且未对其晶格结构造成破坏,光敏化剂的加入可提高Bi2WO6对四环素的吸附率和去除率,优化了催化剂的催化活性。其中,阴离子Cl-和阳离子Cu2+的促进效果较好,经过对比后选择的最佳光敏化剂为硫酸铜;最佳条件为在硫酸铜加入量为1.5 mL以及四环素初始浓度为70 mg/L时,光催化剂对四环素的去除率可达88.79%;pH值为5或8时吸附效果最佳,吸附率分别为51.50%和55.01%。
    四环素  /  钨酸铋  /  无机盐离子  /  光敏化剂
    The photocatalytic reaction with Bi2WO6 as a catalyst is found to be effective for removal of tetracycline in wastewater. In this paper, the treatment efficiency of Bi2WO6 photocatalyst for tetracycline wastewater is further improved through directly adding photosensitizer to the photocatalytic reaction. Bi2WO6 catalyst is prepared and characterized by XRD and SEM to explore its crystal structure and morphology. Meanwhile, the effects of five factors including anion, cation, photosensitizer dosage, initial concentration of tetracycline, and initial pH of tetracycline on the removal of tetracycline are studied. The results show that the photocatalyst is successfully prepared without any damage to the lattice structure, and that addition of sensitizer can improve adsorption and removal of tetracycline, and that the catalytic activity of Bi2WO6 is optimized. The promotion effects of anion Cl- and cationic Cu2+ are better than others, and after comparison the best photosensitizer is found to be copper sulfate. The removal rate of tetracycline can reach 88.79% when the addition of copper sulfate is 1.5 ml and the initial concentration of tetracycline is 70 mg/L. Besides, the adsorption efficiency is the best when pH is 5 or 8, the adsorption rates being 51.50% and 55.01%, respectively.
    tetracycline  /  bismuth tungstate  /  inorganic salt ions  /  photosensitizer
    张译心, 马春萌, 柳鹏, 冯立民, 张凤君. 无机盐离子对Bi2WO6可见光催化剂去除水中四环素的光敏化作用. 科技导报, 2018 , 36 (8) : 71 -78 . DOI: 10.3981/j.issn.1000-7857.2018.08.008
    ZHANG Yixin, MA Chunmeng, LIU Peng, FENG Limin, ZHANG Fengjun. Effect of inorganic salts on photosensitization and degradation of tetracycline by photocatalysis using Bi2WO6 as the catalyst[J]. Science & Technology Review, 2018 , 36 (8) : 71 -78 . DOI: 10.3981/j.issn.1000-7857.2018.08.008

      国家自然科学基金项目(41472214)

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    doi: 10.3981/j.issn.1000-7857.2018.08.008
    • 接收时间:2017-05-25
    • 首发时间:2018-04-27
    • 出版时间:2018-04-28
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    • 收稿日期:2017-05-25
    • 修回日期:2018-03-08
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    张凤君(通信作者),教授,研究方向为水处理技术,电子信箱:zhang-fengjun@jlu.edu.cn
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    鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
    小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
    多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
    红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
    小菇属 Mycena 11 5.26
    光柄菇属 Pluteus 5 2.39
    红菇属 Russula 17 8.13
    栓菌属 Trametes 5 2.39
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