IMMOBILIZATION OF Cu2+ USING STABILIZED NANO ZERO VALENT IRON PARTICLES IN CONTAMINATED AQUEOUS SOLUTIONS

被引：10

作者：

Ayob, Afizah ^{[1
]}

Ismail, Norli ^{[1
]}

Teng, Tjoon Tow ^{[1
]}

Abdullah, Ahmad Zuhairi ^{[2
]}

机构：

[1] Univ Sains Malaysia, Sch Ind Technol, P Pinang 11800, Malaysia

[2] Univ Sains Malaysia, Sch Chem Engn, Nibong Tebal 14300, P Pinang, Malaysia

来源：

ENVIRONMENT PROTECTION ENGINEERING | 2012年 / 38卷 / 03期

关键词：

ZEROVALENT IRON; REMOVAL; NANOPARTICLES; COPPER; ADSORPTION; CHROMIUM; IONS; TRICHLOROETHYLENE; DECHLORINATION; DENDRIMERS;

D O I：

10.5277/EPE120311

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Batch kinetic experiments were conducted to investigate the feasibility of using carboxylmethyl cellulose (CMC)-stabilized nano zero valent iron (nZVI) particles for immobilization of Cu2+ in water. The effects of nZVI concentration, pH, and initial concentration of Cu2+ have been studied. Cu2+ immobilization increased from 59.10% to 98.10% as the nZVI concentration increased from 0.2 to 2.0 g/l. The adsorption kinetics of Cu2+ ions was fitted to a pseudo-second order model and both Langmuir and Freundlich isotherms fit experimental data. SEM-EDX indicates that slightly porous and fragile particles were formed due to the corrosion on the nZVI surface.

引用

页码：119 / 131

页数：13

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