Encapsulating nanosilica into polyacrylic acid and chitosan interpenetrating network hydrogel for preconcentration of uranium from aqueous solutions

被引：18

作者：

He, Jiarui ^{[2
]}

Jin, Jiali ^{[2
]}

Wang, Zhenzhen ^{[2
]}

Yin, Hongwei ^{[2
]}

Wei, Congcong ^{[2
]}

Xu, Xiaoping ^{[1
]}

机构：

[1] Fuzhou Univ, Coll Chem, Key Lab Pharmaceut Preparat, Fuzhou 350108, Fujian, Peoples R China

[2] Fuzhou Univ, Coll Chem, Key Lab Bipharmaceut, Fuzhou 350108, Fujian, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2018年 / 317卷 / 03期

关键词：

Polyacrylic acid; Uranium (VI); Chitosan; Nanosilica particles; HEAVY-METAL IONS; WASTE-WATER; REMOVAL; BIOSORPTION; ADSORPTION; COMPOSITE; CU(II); ADSORBENTS; COPPER(II); LEAD(II);

D O I：

10.1007/s10967-018-6034-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Polyacrylic acid, Chitosan and nanosilica particles composite (PCNS) was prepared for enrichment of U (VI) from aqueous solutions. Adsorption tests controlled by different parameters including contact time, pH, initial concentration of UO2 (2+) and coexistence ions were examined. FTIR, SEM and EDX studies proved the formation of composite and confirmed efficient adsorption of UO2 (2+) by PCNS. The experimental datas fit the Langmuir and pseudo-second-order models, the R (L) (0.115-0.645) indicates the adsorption of UO2 (2+) onto PCNS are favorable. The value of q (m) (451.118 mg g(-1)) and adsorption-desorption experiments showed PCNS hydrogel can be reckoned as a high efficienct and sustainable material for removal of U (VI).

引用

页码：1299 / 1309

页数：11

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