High efficient removal of Pb (II) by amino-functionalized Fe3O4 magnetic nano-particles

被引：258

作者：

Tan, Yanqing ^{[1
]}

Chen, Man ^{[1
]}

Hao, Yongmei ^{[1
]}

机构：

[1] Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 191卷

基金：

中国国家自然科学基金;

关键词：

Amino-functionalization; Adsorption; Pb (II) ion; Magnetic nano-particles; Removal; AQUEOUS-SOLUTION; WASTE-WATER; CARBON NANOTUBES; METAL-IONS; CHELATING RESINS; RAPID REMOVAL; HEAVY-METALS; PB(II) IONS; ADSORPTION; NANOPARTICLES;

D O I：

10.1016/j.cej.2012.02.075

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An amino-functionalized magnetic nano-adsorbent (MNPs-NH2) has been prepared by a simple one-pot method for the removal of Pb (II). These amino-functionalized Fe3O4 nano-particles showed a high adsorption capacity and efficient adsorption toward Pb (II) in an aqueous medium. The studies on the adsorption of Pb (II) ions revealed that the process obey the pseudo-second order kinetic model, the determining step might be chemical sorption. Among the various isotherm models, the experimental data for the adsorption of Pb (II) were found to follow the Langmuir isotherm and the maximum adsorption capacity was 40.10 mg g(-1) at pH 5 and 298 K. The sorption mean free energy from the Dubinin-Radushkevich isotherm was found to be 10.31 kJ mol(-1), indicating a chemical sorption. In addition, Pb (II) ions could be desorbed from nano-adsorbents and the MNPs-NH2 exhibited a good reusability. Importantly, about 98% of Pb (II) could be removed by MNPs-NH2 from industrial wastewater and tap water. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：104 / 111

页数：8

共 47 条

[1] Removal of lead(II) from wastewater by activated carbon developed from Tamarind wood by zinc chloride activation [J].

Acharya, Jyotikusum ;

Sahu, J. N. ;

Mohanty, C. R. ;

Meikap, B. C. .

CHEMICAL ENGINEERING JOURNAL, 2009, 149 (1-3) :249-262

[2] Fly ash-based geopolymer for Pb removal from aqueous solution [J].

Al-Zboon, Kamel ;

Al-Harahsheh, Mohammad S. ;

Hani, Falah Bani .

JOURNAL OF HAZARDOUS MATERIALS, 2011, 188 (1-3) :414-421

[3] Low-cost adsorbents for heavy metals uptake from contaminated water: a review [J].

Babel, S ;

Kurniawan, TA .

JOURNAL OF HAZARDOUS MATERIALS, 2003, 97 (1-3) :219-243

[4] A review of potentially low-cost sorbents for heavy metals [J].

Bailey, SE ;

Olin, TJ ;

Bricka, RM ;

Adrian, DD .

WATER RESEARCH, 1999, 33 (11) :2469-2479

[5] Magnetic chitosan nanoparticles: Studies on chitosan binding and adsorption of Co(II) ions [J].

Chang, YC ;

Chang, SW ;

Chen, DH .

REACTIVE & FUNCTIONAL POLYMERS, 2006, 66 (03) :335-341

[6] The chemically crosslinked metal-complexed chitosans for comparative adsorptions of Cu(II), Zn(II), Ni(II) and Pb(II) ions in aqueous medium [J].

Chen, Arh-Hwang ;

Yang, Cheng-Yu ;

Chen, Chia-Yun ;

Chen, Chia-Yuan ;

Chen, Chia-Wen .

JOURNAL OF HAZARDOUS MATERIALS, 2009, 163 (2-3) :1068-1075

[7] APPLICATION OF ELOVICH EQUATION TO THE KINETICS OF PHOSPHATE RELEASE AND SORPTION IN SOILS [J].

CHIEN, SH ;

CLAYTON, WR .

SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1980, 44 (02) :265-268

[8] Monodisperse magnetic single-crystal ferrite microspheres [J].

Deng, H ;

Li, XL ;

Peng, Q ;

Wang, X ;

Chen, JP ;

Li, YD .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (18) :2782-2785

[9] Cibacron Blue F3GA-attached polyvinylbutyral microbeads as novel magnetic sorbents for removal of Cu(II), Cd(II) and Pb(II) ions [J].

Denizli, A ;

Tanyolaç, D ;

Salih, B ;

Özdural, A .

JOURNAL OF CHROMATOGRAPHY A, 1998, 793 (01) :47-56

[10] Magnetic microstructure of magnetotactic bacteria by electron holography [J].

Dunin-Borkowski, RE ;

McCartney, MR ;

Frankel, RB ;

Bazylinski, DA ;

Posfai, M ;

Buseck, PR .

SCIENCE, 1998, 282 (5395) :1868-1870

← 1 2 3 4 5 →