Novel hybrid material humic acid impregnated magnetic chitosan nano particles for decontamination of uranium from aquatic environment

被引：25

作者：

Basu, Hirakendu ^{[1
]}

Saha, Sudeshna ^{[1
]}

Pimple, Mehzabin Vivek ^{[1
]}

Singhal, Rakesh Kumar ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Analyt Chem Div, Mumbai 400085, Maharashtra, India

来源：

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2019年 / 7卷 / 03期

关键词：

Humic acid; Nano-composite; Chitosan; Uranium; Sorption isotherm; HIGHLY EFFICIENT REMOVAL; HEAVY-METAL IONS; ADSORPTION; ALGINATE; SEAWATER; NANOPARTICLES; EQUILIBRIUM; SORBENTS; SORPTION; CHITIN;

D O I：

10.1016/j.jece.2019.103110

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this study, a novel nano-composite was developed by synthesizing humic acid modified magnetic chitosan nano particles for efficient removal of uranium. Due to the combined effects of magnetic chitosan nano particles and humic acid, the composite material showed excellent removal efficiency (> 95%) for uranium at pH 5-7 within 10 min (equilibrium time). Sorption followed Langmuir isotherm and pseudo second order kinetic model. The sorption capacity was calculated to be 47.9 mg g(-1). Zeta potential of the nano-composite and different species of uranium present are reported which helps to understand the mechanism of uptake.

引用

页数：7

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