Artemisinin gum reinforced porous amidoxime aerogel with high efficiency adsorption for uranium extraction from seawater

被引：4

作者：

Bai, Jianwei ^{[1
]}

Liu, Ankang ^{[1
]}

Yan, Huijun ^{[2
]}

Zheng, Shuaiyu ^{[1
]}

Gao, Feixiang ^{[1
]}

Su, Shouzheng ^{[1
]}

Zhang, Chunhong ^{[1
]}

Wang, Jun ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Key Lab Superlight Mat & Surface Technol, Minist Educ, Harbin 150001, Peoples R China

[2] Harbin Univ, Dept Chem, Harbin 150086, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2024年 / 402卷

关键词：

Uranium adsorption; Aerogel; Artemisia sphaerocephala Krasch gum; Amidoxime; RECOVERY; SORPTION; REMOVAL;

D O I：

10.1016/j.molliq.2024.124687

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The extraction of uranium resources from the ocean is of great importance in energy exploration. This work reported a polysaccharide composite aerogel to adsorb uranium from the ocean, a facile freeze-drying strategy was explored to create a physically crosslinked artemisia sphaerocephala krasch gum (ASKG)-poly(amidoxime) (PAO) aerogel (ASKG@PAO). Due to the excellent hydrophilicity and swelling properties of artemisia spherecephala krasch gum, the ASKG@PAO can quickly and stably adsorb uranyl ions in the ocean. The batch adsorption test results show ASKG@PAO (mASKG: mPAO = 1:1) has an excellent uranium removal rate (93.92 %) and a high uranium adsorption capacity (341.11 mg/g). Desorption kinetic experiments show that the ASKG@PAO can desorb 90 % of the uranyl ions within 10 min and retain a removal rate of 87.3 % after five adsorption-desorption cycles. In addition, ASKG@PAO has excellent selectivity for uranyl ions. Consequently, ASKG@PAO aerogel has significant potential for extracting marine uranium resources.

引用

页数：9

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