Polyaniline coated magnetic carboxymethylcellulose beads for selective removal of uranium ions from aqueous solution

被引：85

作者：

Arica, M. Yakup ^{[1
]}

Bayramoglu, Gulay ^{[1
,2
]}

机构：

[1] Gazi Univ, Biochem Proc & Biomat Res Lab, TR-06500 Ankara, Turkey

[2] Gazi Univ, Dept Chem, Fac Sci, TR-06500 Ankara, Turkey

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2016年 / 310卷 / 02期

关键词：

Uranium(VI); Carboxymethylcellulose; Polyaniline; Surface modification; Adsorption; LENTINUS-SAJOR-CAJU; POLYMER MICROSPHERES; ASPERGILLUS-NIGER; ELOVICH EQUATION; ADSORPTION; BIOSORPTION; AMIDOXIME; EQUILIBRIUM; SORPTION; KINETICS;

D O I：

10.1007/s10967-016-4828-z

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学];

摘要：

Magnetic carboxymethylcellulose (CMC) beads were prepared via ionic cross-linking. Then CMC beads were coated with polyaniline (PANI). The results of FTIR, SEM, DTA and N-2 adsorption-desorption demonstrated that aniline was successfully grafted onto the surface of mCMC beads. The potential use of the prepared adsorbent was used for removal of U(VI) ions. The determined maximum adsorption capacities of the mCMC and mCMC-g-PANI beads for U(VI) ions were 129.4 and 386.5 mg/g dry weight at pH 4.5, respectively. The thermodynamic parameters (Delta HA degrees, Delta SA degrees and Delta GA degrees) were evaluated. The adsorbent systems were regenerated using 0.1 M HCl.

引用

收藏

页码：711 / 724

页数：14

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