不同分层体系结构钨酸铋对可见光催化降解诺氟沙星的影响（英文）

发布时间：2018-01-13 04:15

本文关键词：不同分层体系结构钨酸铋对可见光催化降解诺氟沙星的影响（英文）　出处：《Transactions of Nonferrous Metals Society of China》2017年08期 　论文类型：期刊论文

【摘要】：研究不同分层体系结构钨酸铋对可见光催化降解诺氟沙星的影响。在pH值为4~11条件下采用水热法反应合成钨酸铋。结果表明:在pH值为4条件下制备的钨酸铋对诺氟沙星具有很好的吸附和光催化性能。表征结果显示,pH值为4时制备的钨酸铋具有较大的比表面积和光生载流子分离效率。在弱碱条件下,催化降解速率达到最大,这是由于弱碱溶液提供了足量的OH~-,光子与材料表面吸附的OH~-反应生成了羟基自由基。本实验证明,较小尺寸的超薄钨酸铋是一种有效的诺氟星沙污染水体光催化剂。
[Abstract]:Study on the effect of the different layered architecture of bismuth tungstate photocatalytic degradation of norfloxacin. Under the condition of 4~11 by hydrothermal method synthesis of bismuth tungstate in pH. The results show that when the pH value is 4 under the condition of bismuth tungstate preparation has good adsorption and photocatalytic performance of norfloxacin. Results show that pH a value of 4 for the preparation of bismuth tungstate has larger surface area and the separation efficiency of photogenerated carriers. In alkaline conditions, the degradation rate reached the maximum, which is due to weak base solution provides plenty of OH~-, OH~- adsorption and photon surface produced hydroxyl radicals. The experiment proves that the thin the small size of the bismuth tungstate is a Nobel fluoride in Xingsha contaminated water efficient photocatalyst.

【作者单位】：湖南大学环境科学与工程学院;湖南大学环境生物与污染控制教育部重点实验室;湖南农业大学资源环境学院;
【基金】：Projects(51579096,51222805,51521006,51508175) supported by the National Natural Science Foundation of China Project supported by the National Program for Support of Top-Notch Young Professionals of China Project(NCET 11 0129) supported by the Program for New Century Excellent Talents in University from the Ministry of Education of China Project(CX2015B095) supported by the Hunan Province Innovation Foundation for Postgraduate,China
【分类号】：O643.36;X52
【正文快照】： 1 Introduction The frequent occurrence of pharmaceuticals in the aquatic environment has become an important issue in past decades[1-3].Particularly after HIRSCH et al[2]separated antibiotic resistant bacteria from sewage sludge,and NEU[4]reported the c

【相似文献】