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This paper studies the Fenton-like degradation of TCS with the nanoscale zero-valent iron (nZVI). According to the single-factor experiments, the removal efficiency of TCS is increased with the increase of nZVI dosage and H2O2 concentration. And the removal efficiency reaches the highest when the pH value is 3. However, the initial concentration of the TCS had no obvious effect on the removal, and the results demonstrate that the degradation of the TCS follows the second-order kinetics. In addition, the nZVI-based Fenton-like system can achieve the highest removal efficiency under the same experimental conditions, as compared to the traditional Fenton reagent and nZVI alone., authors=LI Guanqing, WEN Yingxin, WANG Xuejun, CHENG Rong, LI Jie, authorsList=LI Guanqing, WEN Yingxin, WANG Xuejun, CHENG Rong, LI Jie, authorCompany=School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=5L4FjKMAQ+2/VzKIaxDR+g==, pdfFileSize=2483184, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1242135503126999440, articleId=1242135501776429410, 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科技导报
| 专题论文 2016, 34(22): 32-36
基于纳米铁的类Fenton法降解水中的三氯生
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李冠清, 温颖新, 王学军, 程荣, 李洁
作者信息
通讯作者:
程荣(通信作者),副教授,研究方向为环境纳米技术,电子信箱:chengrong@ruc.edu.cn;李洁(共同通信作者),副教授,研究方向为水污染控制与环保产业,电子信箱:lijie@ruc.edu.cn
Removal of triclosan in water with nanoscale zero-valent ironbased Fenton-like system
Affiliations
出版时间: 2016-11-28
doi: 10.3981/j.issn.1000-7857.2016.22.003
文章导航
作为一种广泛存在的典型药品及个人护理品,三氯生(TCS)给生态环境和人体健康带来了潜在的威胁。以三氯生为目标污染物,采用实验室自行设计合成的零价纳米铁作为类Fenton试剂,研究了类Fenton法对三氯生的降解过程。单因素实验结果表明,三氯生的去除率随着纳米铁投加量和双氧水浓度的增加而增加;在溶液pH值为3时去除率最高;三氯生的初始浓度对去除率的影响不太明显。动力学分析表明三氯生的降解反应符合二级反应。在相同实验条件下,类Fenton试剂对三氯生的去除率明显优于传统Fenton试剂和单独投加纳米铁的体系。
Triclosan (TCS), a kind of widely used pharmaceuticals and personal care products (PPCPs), poses a significant threat to ecoenvironment and human beings. This paper studies the Fenton-like degradation of TCS with the nanoscale zero-valent iron (nZVI). According to the single-factor experiments, the removal efficiency of TCS is increased with the increase of nZVI dosage and H2O2 concentration. And the removal efficiency reaches the highest when the pH value is 3. However, the initial concentration of the TCS had no obvious effect on the removal, and the results demonstrate that the degradation of the TCS follows the second-order kinetics. In addition, the nZVI-based Fenton-like system can achieve the highest removal efficiency under the same experimental conditions, as compared to the traditional Fenton reagent and nZVI alone.
Fenton-like
/
triclosan
/
nanoscale zero-valent iron
李冠清, 温颖新, 王学军, 程荣, 李洁.
基于纳米铁的类Fenton法降解水中的三氯生.
科技导报,
2016
, 34
(22)
: 32
-36
.
DOI: 10.3981/j.issn.1000-7857.2016.22.003
LI Guanqing, WEN Yingxin, WANG Xuejun, CHENG Rong, LI Jie.
Removal of triclosan in water with nanoscale zero-valent ironbased Fenton-like system[J].
Science & Technology Review ,
2016
, 34
(22)
: 32
-36
.
DOI: 10.3981/j.issn.1000-7857.2016.22.003
2016年第34卷第22期
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文章信息
doi: 10.3981/j.issn.1000-7857.2016.22.003
接收时间:2016-09-01
首发时间:2016-12-13
出版时间:2016-11-28
收稿日期:2016-09-01
修回日期:2016-10-10
通讯作者:
程荣(通信作者),副教授,研究方向为环境纳米技术,电子信箱:chengrong@ruc.edu.cn;李洁(共同通信作者),副教授,研究方向为水污染控制与环保产业,电子信箱:lijie@ruc.edu.cn
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2016.22.003
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2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 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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