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首页> 外文期刊>Journal of Environmental Management >Photocatalytic degradation of trace carbamazepine in river water under solar irradiation
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Photocatalytic degradation of trace carbamazepine in river water under solar irradiation

机译：太阳照射下河水中痕量小鼠的光催化降解

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摘要

An interesting ZnIn2S4/TiO2 composite catalyst was prepared by a hydrothermal method and thoroughly characterized. The photocatalytic degradation of trace carbamazepine (CBZ) in two river waters was primarily investigated through a batch experiment under solar irradiation, and the effects of dissolved organic matter (DOM), inorganic salt (IS), suspended solids (SS) and ultraviolet (UV) on CBZ degradation were researched. The influential degree was DOM approximate to IS SS and CBZ with an initial concentration of 100 mu g/L in the Bahe River water was completely degraded under a catalyst dosage of 75 mg/L and solar irradiation of 240 min. Compared with direct photolysis, the reaction rate constant enhanced 45 times and the half-life reduced to 1/82 in photo catalysis after the removal of all SS, IS and DOM. A certain adsorption capacity of composite catalyst with a specific surface area of 91.9 m(2)/g and a strong interaction between TiO2 and ZnIn2S4 effectively improved the photocatalytic degradation of CBZ. The increase of light intensity was confirmed to be of benefit to CBZ photocatalysis. Most of CBZ was degraded by visible light and UV effect was negligible. Although photo-etching and acidic corrosion by course products had negative effect on ZnIn2S4/TiO2, the removal of CBZ was mainly kept at 86% after five times usage of the catalyst.
机译：一种有趣的Znin2S4 / TiO 2复合催化剂通过水热法制制备并彻底表征。两条河水中痕量菌落（CBZ）的光催化降解主要通过在太阳辐射下进行批量实验来研究，以及溶解有机物（DOM），无机盐（IS），悬浮固体（SS）和紫外线（UV ）研究了CBZ降解。影响程度为DOM近似值 SS和CBZ，在Bahe河水中的初始浓度为100μg/ L在催化剂剂量为75mg / L的催化剂剂量和240分钟的太阳照射下完全降解。与直接光解相比，反应速率恒定增强45倍，半衰期在去除所有SS之后的照片催化剂中减少至1/82。具有91.9m（2）/ g的比表面积和TiO 2和Znin2S4之间的强相互作用的复合催化剂的一定吸附能力有效地改善了CBZ的光催化降解。确认光强度的增加有益于CBZ光催化。大部分CBZ通过可见光降解，紫外线效应可以忽略不计。虽然通过当前产品的光蚀刻和酸性腐蚀对Znin2S4 / TiO2具有负面影响，但在催化剂的五次使用后，CBZ的除去主要保持在86％。

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  • 来源
    《Journal of Environmental Management》 |2019年第jul1期|131-137|共7页
  • 作者

    Bo Longli; Liu Heng; Han Haixia;

  • 作者单位

    Xian Univ Architecture & Technol Sch Environm & Municipal Engn Key Lab Environm Engn Shaanxi Prov Xian 71005 Shaanxi Peoples R China|Minist Educ Key Lab Northwest Water Resources Environm & Ecol Xian 710055 Shaanxi Peoples R China;

    Xian Univ Architecture & Technol Sch Environm & Municipal Engn Key Lab Environm Engn Shaanxi Prov Xian 71005 Shaanxi Peoples R China;

    Xian Univ Architecture & Technol Sch Environm & Municipal Engn Key Lab Environm Engn Shaanxi Prov Xian 71005 Shaanxi Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ZnIn2S4/TiO2; Photocatalysis; Carbamazepine; Kinetics; UV effect;

    机译：Znin2S4 / TiO2;光催化;卡巴马嗪;动力学;紫外线效应;

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