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Hydrous titanium oxide and bayberry tannin co-immobilized nano collagen fibrils for uranium extraction from seawater and recovery from nuclear wastewater.
Yu, Jie; Yu, Chunhui; Zhu, Wenkun; He, Guiqiang; Wei, Yanxia; Zhou, Jian.
Afiliación
  • Yu J; State Key Laboratory of Environment-friendly Energy Materials, School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China.
  • Yu C; State Key Laboratory of Environment-friendly Energy Materials, School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China.
  • Zhu W; State Key Laboratory of Environment-friendly Energy Materials, School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China.
  • He G; State Key Laboratory of Environment-friendly Energy Materials, School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China.
  • Wei Y; State Key Laboratory of Environment-friendly Energy Materials, School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China.
  • Zhou J; State Key Laboratory of Environment-friendly Energy Materials, School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, PR China; Engineering Research Center of Biomass Materials, Ministry of Education, National Collaborative Innovation Cente
Chemosphere ; 286(Pt 1): 131626, 2022 Jan.
Article en En | MEDLINE | ID: mdl-34346333
Extraction uranium from complicated aqueous solutions (seawater and nuclear wastewater) has been promoting the development of multi-functional adsorbents with high adsorption capacities and high selectivity. Here, we proposed a co-immobilization approach to preparing uranium adsorbents. Due to specific recognition and binding between functional groups, bayberry tannin (BT) and hydrous titanium oxide (HTO) were co-immobilized onto nano collagen fibrils (NCFs). The adsorption performances of NCFs-HTO-BT to uranium were systematically investigated in two aqueous systems, including nuclear wastewater and seawater. Results proved that NCFs-HTO-BT possessed the remarkable adsorption capacities and affinities for uranium in wastewater (393.186 mg g-1) and spiked seawater (14.878 mg g-1) with the uranium concentration of 320 mg g-1 and 8 mg g-1, respectively. Based on characteristic analysis of the adsorbent before and after uranium adsorption, the hydroxyl groups of HTO, the adjacent phenolic hydroxyl groups of BT, and nitrogen-containing and oxygen-containing functional groups of NCFs were active sites for uranium adsorption.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Uranio / Myrica Idioma: En Revista: Chemosphere Año: 2022 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Uranio / Myrica Idioma: En Revista: Chemosphere Año: 2022 Tipo del documento: Article Pais de publicación: Reino Unido