Preparation of amino-modified hydroxyapatite and its uranium adsorption properties

被引：33

作者：

Feng, Yurun ^{[1
]}

Ma, Baoshan ^{[3
]}

Guo, Xue ^{[2
]}

Sun, Haibin ^{[2
]}

Zhang, Yujun ^{[1
]}

Gong, Hongyu ^{[1
]}

机构：

[1] Shandong Univ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ, Jinan 250061, Shandong, Peoples R China

[2] Shandong Univ Technol, Sch Mat Sci & Engn, Zibo 255049, Peoples R China

[3] Shandong Sanshan Highway Engn Supervis Consulting, Liaocheng, Peoples R China

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2019年 / 319卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Hydroxyapatite; Amino modified; Uranium; Adsorption; AQUEOUS-SOLUTIONS; REMOVAL; CARBON; SORBENT; SILICA; ORE;

D O I：

10.1007/s10967-018-6357-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The amino-hydroxyapatite (HAP-NH2) was synthesized by grafted amino functional groups onto hydroxyapatite. The uranium adsorption performance of HAP-NH2 was studied under different conditions. The results indicated that HAP-NH2 possessed high adsorption capacity (96mgg(-1)), wide pH values range (2-8) and fast adsorption rate (20min). The adsorption kinetic and adsorption isotherm models of HAP-NH2 revealed that the uranium adsorption process was belonged to chemical adsorption. Furthermore, the main forces between uranium ions and HAP-NH2 were attributed to hydroxyl, amino and phosphorous functional groups.

引用

页码：437 / 446

页数：10

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