Preconcentration and Separation of Rubidium from Salt Lake Brine by Ammonium Phosphomolybdate - Polyacrylonitrile (AMP-PAN) Composite Adsorbent

ChemistrySelectVolume 2, Issue 25 p. 7741-7750 Full Paper Preconcentration and Separation of Rubidium from Salt Lake Brine by Ammonium Phosphomolybdate – Polyacrylonitrile (AMP-PAN) Composite Adsorbent Dr. Amin Bao, Dr. Amin Bao Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: School of Chemistry and Chemical Engineering, Institution: University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing, 100049 China.Search for more papers by this authorProf. Dr. Hong Zheng, Corresponding Author Prof. Dr. Hong Zheng zh_isl@126.com Department: Department of Chemistry, Institution: Chongqing Normal University, No. 37, Chengzhong Road, Shapingba District, Chongqing, 401331 China.Search for more papers by this authorZeyu Liu, Zeyu Liu Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: School of Chemistry and Chemical Engineering, Institution: University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing, 100049 China.Search for more papers by this authorDongfang Huang, Dongfang Huang Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: School of Chemistry and Chemical Engineering, Institution: University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing, 100049 China.Search for more papers by this authorShuya Wang, Shuya Wang Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China.Search for more papers by this authorBo Li, Bo Li Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China.Search for more papers by this author Dr. Amin Bao, Dr. Amin Bao Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: School of Chemistry and Chemical Engineering, Institution: University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing, 100049 China.Search for more papers by this authorProf. Dr. Hong Zheng, Corresponding Author Prof. Dr. Hong Zheng zh_isl@126.com Department: Department of Chemistry, Institution: Chongqing Normal University, No. 37, Chengzhong Road, Shapingba District, Chongqing, 401331 China.Search for more papers by this authorZeyu Liu, Zeyu Liu Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: School of Chemistry and Chemical Engineering, Institution: University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing, 100049 China.Search for more papers by this authorDongfang Huang, Dongfang Huang Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: School of Chemistry and Chemical Engineering, Institution: University of Chinese Academy of Sciences, No. 19, Yuquan Road, Shijingshan District, Beijing, 100049 China.Search for more papers by this authorShuya Wang, Shuya Wang Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China.Search for more papers by this authorBo Li, Bo Li Department: Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China. Department: Qinghai Engineering and Technology Research Center of comprehensive Utilization of Salt Lake Resources, Institution: Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, No. 18, Xinning Road, Chengxi District, Xining, Qinghai, 810008 China.Search for more papers by this author First published: 05 September 2017 https://doi.org/10.1002/slct.201700835Citations: 3Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Graphical Abstract In this study, a novel composite adsorbent of ammonium phosphomolybdate – polyacrylonitrile (AMP–PAN) was prepared for sensitive and selective preconcentration and separation of rubidium (Rb(I)) ion from salt lake brine. Several experimental parameters were systematically investigated. In addition, the thermodynamics and kinetics of adsorption were studied. Abstract In this study, a novel composite adsorbent of ammonium phosphomolybdate – polyacrylonitrile (AMP–PAN) was prepared for sensitive and selective preconcentration and separation of rubidium (Rb(I)) ion from salt lake brine. Several experimental parameters, such as pH value, shaking time, concentration, interference ions, regeneration, stability and reusability were systematically investigated. The experimental results clarified that the Rb(I) ion was adsorbed by the adsorbent of AMP-PAN at pH 7. Under optimum condition, the maximum sorption capacity for Rb(I) ion by the adsorbent was 500 mg g−1 based on the Langmuir adsorption isotherm study. The adsorption equilibrium was achieved within 2 h. The presence of co-existing ions did not interfere with Rb(I) adsorption, indicating the high selectivity toward Rb(I) ion. The desorption results demonstrated that Rb(I) ion adsorbed the composite adsorbent of AMP-PAN could be effectively desorbed by 0.5 mol L−1 NH4Cl and regenerated into the initial form without significant deterioration in its original functionality at the same time, which exhibited good stability of the adsorbent. Therefore, the proposed adsorbent of AMP-PAN allowed the sensitive, selective, easy to use, cost-effective, high efficiency, fast kinetics, stable and reusability preconcentation and separation of Rb(I) ion even in the presence of competing ions. As a consequence, the AMP-PAN adsorbent can be used potentially to preconcentration and separation of Rb(I) ion from water samples in a wide range of practical applications for extracting Rb(I) ion in environmental aqueous resources. Conflict of interest The authors declare no conflict of interest. Citing Literature Supporting Information As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Filename Description slct201700835-sup-0001-misc_information.pdf446.6 KB Supplementary Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume2, Issue25August 31, 2017Pages 7741-7750 RelatedInformation