Adsorption behavior of uranyl ions onto amino-type adsorbents prepared by radiation-induced graft copolymerization

doi:10.13538/j.1001-8042/nst.25.010302

Nuclear Science and Techniques ›› 2014, Vol. 25 ›› Issue (1): 010302 doi: 10.13538/j.1001-8042/nst.25.010302

• NUCLEAR CHEMISTRY,RADIOCHEMISTRY,RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE • Previous Articles Next Articles

Adsorption behavior of uranyl ions onto amino-type adsorbents prepared by radiation-induced graft copolymerization

CHI Hong-Ying, LIU Xi-Yan, MA Hong-Juan, YANG Xiao-Juan , YU Ming, ZHANG Jian-Yong , WANG Min, LI Jing-Ye, Hiroyuki Hoshina, Noriaki Seko

1TMSR Research Center and CAS Key Lab of Nuclear Radiation and Nuclear Energy Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
2University of Chinese Academy of Sciences, Beijing 100049,China
3Quantum Beam Science Directorate, Japan Atomic Energy Agency, 1233 Watanuki, Takasaki, Gunma, 370-1292, Japan

Contact: wangmin@sinap.ac.cn, jingyeli@sinap.ac.cn E-mail:wangmin@sinap.ac.cn, jingyeli@sinap.ac.cn
Supported by:
Supported by National Natural Science Foundation of China (Nos. 11175234 and 11105210), the ”Strategic Priority Research Program” of the Chinese Academy of Sciences (No. XDA02030200), the ”Knowledge Innovation Program” of the Chinese Academy of Sciences (No. KJCX2-YW-N49), and Shanghai Municipal Commission for Science and Technology (Nos. 11ZR1445400 and 12ZR1453300)

Export Citation

CHI Hong-Ying, LIU Xi-Yan, MA Hong-Juan, YANG Xiao-Juan, YU Ming, . Adsorption behavior of uranyl ions onto amino-type adsorbents prepared by radiation-induced graft copolymerization.Nuclear Science and Techniques, 2014, 25(1): 010302 doi: 10.13538/j.1001-8042/nst.25.010302

Abstract

Abstract:

Amino-type adsorbents (ATAs) were prepared by radiation-induced graft copolymerization of 4-hydroxybutyl acrylate glycidyl ether (HB) onto a polyethylene-coated polypropylene (PE/PP) duplex fiber of a non-woven fabric, and modified with different amines of ethylenediamine (EDA), diethylenetriamine (DETA), triethylenetetramine (TETA) and diethylamine (DEA). The adsorption behavior of uranyl ions onto the ATAs was studied in batch experiments. The effects of the contact time, initial concentration of the ions, temperature, and pH value. The salinity were investigated along with the adsorption kinetics and the adsorption isotherms. The kinetic experimental data followed the pseudo second-order kinetic model, and the adsorption isotherms correlated well with the Langmuir model. The ATAs showed good efficiency in adsorbing uranyl ions, with the best saturation adsorption capacity being 64:26 mg/g for ATA-DETA within 120 min. The temperature dependence of ATADETA was quite abnormal and the quickest behavior was obtained at 25 C. ATAs showed good adsorption capacity over a wide pH range of 4.0–8.5, and HCl could be used in the elution process. Salinity of the solution had great effect on the adsorption capacity, 3.5% salinity resulted in a 55% loss of capacity from ATA-DETA. The selectivity of ATA-DETA showed an order of: UO2 2+ Fe3+ > Zn2+ > VO3 – > Co2+ > Ni2+.

Key words: Amino-type adsorbents, Radiation induced graft polymerization, Uranyl ions, Adsorption, Selectivity

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Adsorption behavior of uranyl ions onto amino-type adsorbents prepared by radiation-induced graft copolymerization

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