期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 889, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.161616
关键词
Th(IV); porous Al2O3-SiO2 composites material; Adsorption; Mechanism
资金
- National Natural Science Foundation of China [21902130, 21976147, 11602239]
- Sichuan Science and Technology Program [2019YFN0125, 2019ZDZX0027, 2020YFG0456, 2020YFG0147, 2020YFG0160, 2020YFG0191, 2020YFQ0014, 2020YFS0345, 2019YFG0514, 2019ZDZX0013, 2020JDJQ0060, 2020YFG0467, 2020JDRC0099, 2020ZDZX0012, 2020JDRC0089, 2020JDJQ0009]
- Presidential Funding of CAEP [YZJJLX2019007]
- Career Development Funding of CAEP [2402001]
- Research Fund of SWUST [17zx7135, 18zx7149, 19zx7129]
- Sichuan's Training Program of Innovation and Entrepreneurship for Undergraduate [S201910619101, S202010619038, S202010619056, S202010619057]
- Project of State Key Laboratory of Environment-friendly Energy Materials in SWUST [18fksy0218]
- Sichuan Science and Technology Innovation Seedling Project Cultivation Project [2019072]
Porous Al2O3-SiO2 composite materials were constructed and proved to be efficient and reusable adsorbents for Th(IV) removal in aqueous solution with high adsorption capacity and maintenance of over 90% efficiency after multiple cycles.
In this study, porous Al2O3-SiO2 composite materials were successfully constructed and applied to remove Th(IV) in aqueous solution. There was a large amount of OH- on the surface of Al2O3-SiO2 composite materials in aqueous solution, which would effectively capture positively charged Th(IV) to form a complex. The maximum adsorption capacity reached 361.60 mg g(-1) and the adsorption percentage was as high as 99.9% in low initial concentration of Th(IV) solution. In addition, it was worth noting that the adsorption efficiency could maintain more than 90% even after 5 cycles. In view of these results, porous Al2O3-SiO2 composite materials should be considered to be an efficient and reusable adsorbent for Th(IV). (C) 2021 Elsevier B.V. All rights reserved.
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