Application of Novel Adsorbent Prepared by Mucor hiemalis Biomass Impregnated with Calcium Alginate for Removal of Sr2+ from Aqueous Solutions

被引:7
作者
Naeimi, Shakiba [1 ]
Faghihian, Hossein [1 ]
机构
[1] Islamic Azad Univ, Shahreza Branch, Dept Chem, POB 311-86145, Shahreza, Iran
关键词
Mucor hiemalis; Biosorption; Calcium alginate; Sr2+; METAL-ORGANIC FRAMEWORK; DEAD FUNGAL BIOMASS; HEXAVALENT CHROMIUM; CU2+ IONS; BIOSORPTION; NANOPARTICLES; EQUILIBRIUM; STRONTIUM; KINETICS; ADSORPTION;
D O I
10.1007/s10924-019-01453-8
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 research, a novel biosorbent was prepared by Mucor hiemalis biomass combined with calcium alginate (Mucor hiemalis/Alg-Ca). The dead biomass was entrapped into alginate gel by curing method in the presence of Ca2+ ions. The synthesized biosorbent characterized by XRD, EDAX, BET, FTIR, and SEM techniques was used for removal of Sr2+ from aquatic streams under various experimental conditions and the optimized adsorption capacity of 140mgg(-1) was obtained. The selectivity of the adsorbent towards Sr2+ studied in the presence of Na+, Cs+, Ca2+ and Mg2+ was reasonably high. The adsorption process was kinetically fast and the equilibrium was established within 60min, and followed the pseudo-second order kinetics model. The equilibrium data was well described by Langmuir isotherm model. The thermodynamics parameters (G degrees, H degrees and S degrees) of the process were determined. Positive H degrees and negative G degrees were indicative of the endothermic and spontaneous nature of the adsorption process. [GRAPHICS] .
引用
收藏
页码:1572 / 1583
页数:12
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