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The effects of the FeCl2 concentration, n (Ni)/n (Fe), and n (NaBH4 )/n (FeCl2 ) on the reduction of 2, 4-dichlorophenol(2, 4-DCP) are investigated and the reduction pathway of 2, 4-DCP is confirmed. The results show that when the concentration of the FeCl2 solution is 3 mol/L, n (Ni)/n (Fe)=4%, and n (NaBH4 )/n (FeCl2 )=1, the removal efficiency of 2, 4-DCP is nearly 100%, with 95% of 2, 4-DCP being reduced to phenol. The morphology of the nano Fe/Ni is spherical particles with diameter of about 50 nm. The Fe/Ni particles are linked into branches by their inherent magnetic force and are aggregated dispersedly owing tothe electrostatic stabilization. The BET surface area of the Fe/Ni particles reaches 44.8 m2 /g. The pathway of 2, 4-DCP is mainly attributed to the fact that two C-Cl bands are broken in turns to form 2-chlorophenol or 4-chlorophenol, and then dechlorinated to phenol., authors=FAN Xianyuan, SUN Yi, RUAN Xia, LI Zhe, LIU Hong, authorsList=FAN Xianyuan, SUN Yi, RUAN Xia, LI Zhe, LIU Hong, authorCompany=College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=du9DnaEhCV+GIDQAWxhjXg==, pdfFileSize=4580753, 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=1242135508311159209, articleId=1242135505366757788, tenantId=1146029695717560320, journalId=1146031591421210625, language=CN, title=纳米Fe/Ni双金属的制备及其对水中2,4-二氯酚的还原效果, columnId=1242116902361830275, journalTitle=科技导报, columnName=专题论文, runingTitle=null, highlight=null, articleAbstract=采用液相还原法制备了纳米Fe/Ni双金属材料，分析了FeCl2 浓度、n （Ni）/n （Fe）和n （NaBH4 ）/n （FeCl2 ）物质的量之比对制得的Fe/Ni双金属还原水中2，4-二氯酚（2，4-DCP）效果的影响，明确了Fe/Ni对2，4-DCP的还原脱氯途径。结果表明：在FeCl2 浓度为3 mol/L、n （Ni）/n （Fe）=4%，n （NaBH4 ）/n （FeCl2 ）=1的条件下制备的Fe/Ni双金属对2，4-DCP的去除率接近100%，且其中95%被还原成苯酚。纳米Fe/Ni为球形颗粒，粒径约为50 nm，在自身磁力作用下相互链接为枝状，又通过静电稳定作用分散聚集，形成海绵状多孔结构，BET比表面积为44.8 m2 /g。纳米Fe/Ni还原2，4-DCP的途径主要是苯环上的2个C—Cl键依次被加氢还原，先脱去一个氯生成2-氯酚或4-氯酚，再进一步脱氯转化为稳态的苯酚。, authors=范先媛, 孙熠, 阮霞, 李哲, 刘红, authorsList=范先媛, 孙熠, 阮霞, 李哲, 刘红, authorCompany=武汉科技大学资源与环境工程学院, 武汉 430081, correspAuthors=null, authorNote=范先媛,工程师,研究方向为水污染控制技术,电子信箱:406061894@qq.com;孙熠(共同第一作者),研究方向为水污染控制技术,电子信箱:411701514@qq.com, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, 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科技导报
| 专题论文 2016, 34(22): 43-47
纳米Fe/Ni双金属的制备及其对水中2,4-二氯酚的还原效果
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范先媛, 孙熠, 阮霞, 李哲, 刘红
作者信息
武汉科技大学资源与环境工程学院, 武汉 430081
Study on the preparation of nanoscale Fe/Ni bimetal and its reduction of 2,4-dichlorophenol from aqueous solution
Affiliations
出版时间: 2016-11-28
doi: 10.3981/j.issn.1000-7857.2016.22.005
文章导航
采用液相还原法制备了纳米Fe/Ni双金属材料，分析了FeCl2 浓度、n （Ni）/n （Fe）和n （NaBH4 ）/n （FeCl2 ）物质的量之比对制得的Fe/Ni双金属还原水中2，4-二氯酚（2，4-DCP）效果的影响，明确了Fe/Ni对2，4-DCP的还原脱氯途径。结果表明：在FeCl2 浓度为3 mol/L、n （Ni）/n （Fe）=4%，n （NaBH4 ）/n （FeCl2 ）=1的条件下制备的Fe/Ni双金属对2，4-DCP的去除率接近100%，且其中95%被还原成苯酚。纳米Fe/Ni为球形颗粒，粒径约为50 nm，在自身磁力作用下相互链接为枝状，又通过静电稳定作用分散聚集，形成海绵状多孔结构，BET比表面积为44.8 m2 /g。纳米Fe/Ni还原2，4-DCP的途径主要是苯环上的2个C—Cl键依次被加氢还原，先脱去一个氯生成2-氯酚或4-氯酚，再进一步脱氯转化为稳态的苯酚。
纳米材料
/
Fe/Ni双金属
/
2,4-二氯酚
/
还原
Nanoscale Fe/Ni bimetal is prepared by the liquid phase reduction method. The effects of the FeCl2 concentration, n (Ni)/n (Fe), and n (NaBH4 )/n (FeCl2 ) on the reduction of 2, 4-dichlorophenol(2, 4-DCP) are investigated and the reduction pathway of 2, 4-DCP is confirmed. The results show that when the concentration of the FeCl2 solution is 3 mol/L, n (Ni)/n (Fe)=4%, and n (NaBH4 )/n (FeCl2 )=1, the removal efficiency of 2, 4-DCP is nearly 100%, with 95% of 2, 4-DCP being reduced to phenol. The morphology of the nano Fe/Ni is spherical particles with diameter of about 50 nm. The Fe/Ni particles are linked into branches by their inherent magnetic force and are aggregated dispersedly owing tothe electrostatic stabilization. The BET surface area of the Fe/Ni particles reaches 44.8 m2 /g. The pathway of 2, 4-DCP is mainly attributed to the fact that two C-Cl bands are broken in turns to form 2-chlorophenol or 4-chlorophenol, and then dechlorinated to phenol.
nano materials
/
Fe/Ni bimetal
/
2,4-dichlorophenol
/
reduction
范先媛, 孙熠, 阮霞, 李哲, 刘红.
纳米Fe/Ni双金属的制备及其对水中2,4-二氯酚的还原效果.
科技导报,
2016
, 34
(22)
: 43
-47
.
DOI: 10.3981/j.issn.1000-7857.2016.22.005
FAN Xianyuan, SUN Yi, RUAN Xia, LI Zhe, LIU Hong.
Study on the preparation of nanoscale Fe/Ni bimetal and its reduction of 2,4-dichlorophenol from aqueous solution[J].
Science & Technology Review ,
2016
, 34
(22)
: 43
-47
.
DOI: 10.3981/j.issn.1000-7857.2016.22.005
2016年第34卷第22期
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文章信息
doi: 10.3981/j.issn.1000-7857.2016.22.005
接收时间：2016-09-05
首发时间：2016-12-13
出版时间：2016-11-28
收稿日期：2016-09-05
修回日期：2016-09-21
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2016.22.005
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 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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