Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Environmental Science & Technology》 2010-09
Add to Favorite Get Latest Update

Preparation and Dispersity of Nanoiron Particles Coated with Carboxymethyl Cellulose

LI Su-jun,WEI Jian-jun,YU Jiang,WANG Kai-ying,NIU Yong-chao,YU Yang (Department of Environmental Science and Engineering,School of Chemical Engineering,Beijing University of Chemical Technology,Beijing 100029,China)  
High reactivity and small size make nanoiron highly flexible for in situ remediation of chlorinated hydrocarbons in groundwater. For the purpose of in situ remediation,nanoiron must be readily dispersible in water. Carboxymethyl cellulose coated nanoiron particles was synthesized by reduction of ferrous sulfate with sodium borohydride in aqueous phase at the presence of carboxymethyl cellulose. Transmission electron microscopy (TEM) observation showed that the diameter of 64.2wt% carboxymethyl cellulose coated nanoiron particles was about 20nm,while bare nanoiron was 50~100nm. Carboxymethyl cellulose coated nanoiron particles was more discrete than bare nanoiron. Fourier transform infrared (FT -IR) spectroscopy demonstrated that carboxymethyl cellulose molecules were adsorbed to the surface of nanoiron particles through monodentate coordinating. The sedimentation curves of carboxymethyl cellulose coated nanoiron particles in 1mmol/L NaHCO3 aqueous solution were straight lines with slope of -10-4~10-5s-1,indicating greater dispersity than bare nanoiron.
【Fund】: 国家自然科学基金(20807004)
【CateGory Index】: TB383.1
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
Chinese Journal Full-text Database 1 Hits
1 Wang Cuiying; Chen Zuyao; Cheng Bin; Zhu YUIUi; Liu Hongiie( Structure Research Laboratory b. Department of Chemistry)(University of Science & Technology of China Hefei 230026);The Preparation, Surface Modification, and Characterization of Metallic α-Fe Nanoparticles[J];CHINESE JOURNAL OF CHEMICAL PHYSICS;1999-06
Chinese Journal Full-text Database 10 Hits
1 Zhu Kang,Zhao Jiaxiang, Ding Guangan, Yao Haiwen (Beijiug Research lnstitute of Materials & Technology);A STUDY OF THE STRUCTURAL CHANGE OF PHENOLIC RESIN DURING CURING PROCESS BY USING IR[J];Engineering Plastics Application;1988-04
2 CHEN Zhi-qiang,WU Zhi-fu,GAO Yan-ping (Department of Chemistry, Anyang Teachers Colledge,Anyang 455002,China);Measuring the Amount of Calcium in Some Conch Medicine and on Their IR Spectra Comparison[J];Journal of Anyang Teachers College;2005-02
3 GONG Pan-wei1,2,LI Zai-yuan1,ZHAI Yu-chun1(1.School of Material and Metallurgy,Northeastern University,Shenyang 110004,China;2.School of Petroleum and Chemical Engineering,Liaoning Petroleum and Chemical Engineering University,Fushun 113001,China);Study on the Preparation of Fe Nano-Powders[J];Micronanoelectronic Technology;2006-07
4 SHI Fei1,2, LIU Jingxiao2(1. Dalian University of Technology, Liaoning Dalian 116024,China; 2. Dlian Institute of Light Industry, Liaoning Dalian 116034, China);Phase Transformation of Hydrophilic TiO_2/SiO_2 Films Prepared by Sol-Gel Method[J];Glass & Enamel;2002-06
5 JIANG Yuan zi 1,SHANG Xue ya 2,LI Meng lu 3,QU Ling bo 4 (1.The Department of Chemical Engineering,Zhengzhou University,Zhengzhou 450003,China; 2.The Department of Educational Administration,Henan Education School,Zhengzhou 450003,China; 3.Zhen;Study of IR Spectrum in the Degradation of the Package Material From Maize's Straw[J];Packaging Engineering;2001-06
6 Liu, Bing-si and Yuan, Wei-fu (Department of Petrochemical Technology, Fushun Petroleum Institute, Fushun113001);EHMO STUDY ON THE INTERACTION OF PYRIDINE WITH Rh(111)[J];Chinese Journal of Catalysis;1993-02
7 Wu Run Xie Changsheng(Materials College .Huazhong University of Science and Technology .Wuhan 430074);Research on Surface of Powder Nanomaterials:Current Status and Future Prospect[J];Materials Review;2000-10
8 WANG Hongmei (Dept. of Chem., Changsha Univ.of Electr. Power,Changsha 410077,China);Study on the Degradation Mechanisms of Phosphates Ester Fire-resistant Hydraulic Oil[J];Journal of Changsha University of Electric Power(Natural Science);2003-03
10 QIAN Jun-hong , XU Wen-lin(College of Chemistry and Chemical Engineering,Yangzhou University, Yangzhou 22 5002, China);Elementary Introduction of the Teaching Reform of Spectra Analysis[J];Journal of Jiangsu Teachers University of Technology;2002-04
China Proceedings of conference Full-text Database 2 Hits
1 Zheng wei, Hu Xin-guo, Zhang Cui-fen (Department of Apphed Chemistry, Harbin Institute of Technology, Harbin,Heilongjiang 15001, China Jiangmen JJJ Battery Co., Ltd,Jiangmen 529000,China);Study on the electrochemical performance of high energy density sulfur/ polymer composite cathode material[A];[C];2005
2 Xu Yeming, Yu Ranbo, Xing Xianran, Wang Dan (Department of Physical Chemistry, University of Science & Technology Beijing, Beijing 100083, China; Multiphase Reaction Lab,Institute of Process Engineering Chinese Academy of Sciences, Beijing 100080, China);Hydrothermal Synthesis of A Novel Organically Templated Cerium Sulfate[A];[C];2006
【Secondary Citations】
Chinese Journal Full-text Database 2 Hits
1 LI HUA GONG WF.I Institute of Physics, Academia Sinica, 100080;THE FORMATION AND THE MAGNETIC PROPERTY OF Fe, Co AND Ni FINE METAL PARTICLES[J];Acta Physica Sinica;1991-08
2 SUN JI-RONG SHEN ZHONG-YI LIU YONG Pu FU-KE Institute of Physics, Academia sinica, Beijing 100080;SPONTANEOUS MAGNETIZATION OF SMALL PARTICLE SPIN SYSTEM[J];Acta Physica Sinica;1993-01
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved