A facile preparation of dicyclohexano-18-crown-6 ether impregnated titanate nanotubes for strontium removal from acidic solution

被引：18

作者：

Ma, Jianguo ^{[1
]}

Zhang, Yipeng ^{[1
]}

Ouyang, Jinxiu ^{[1
]}

Wu, Xiaokai ^{[1
]}

Luo, Jianqiang ^{[1
]}

Liu, Shujuan ^{[1
]}

Gong, Xia ^{[2
]}

机构：

[1] East China Univ Technol, Fundamental Sci Radioact Geol & Explorat Technol, Nanchang 330013, Jiangxi, Peoples R China

[2] Jiangxi Agr Univ, Coll Sci, Nanchang 330013, Jiangxi, Peoples R China

来源：

SOLID STATE SCIENCES | 2019年 / 90卷

基金：

中国国家自然科学基金;

关键词：

Dicyclohexano-18-crown-6; ether; Titanate nanotubes; Strontium; Adsorption; CO-CONDENSATION SYNTHESIS; ADSORPTION BEHAVIOR; METAL-IONS; EXTRACTION; SEPARATION; WASTE; RESIN; WATER; TRANSFORMATION; NANOFIBERS;

D O I：

10.1016/j.solidstatesciences.2019.02.002

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In the present work, dicyclohexano-18-crown-6 impregnated titanate nanotubes composite (TNTs@DCH18C6) was prepared as an adsorbent for the selective separation of Sr(2+ )from acidic medium solution. Samples were specified with TEM, FTIR, and TGA. Effects of nitric acid concentration, adsorbent dosage, ionic strength, initial Sr2+ concentration and contact time were investigated with batch experiments. The results indicated that the adsorption was faster in the first 5 min and equilibrium was achieved after 180 min in the media of 6 mol L-1 HNO3. The adsorption data at equilibrium state were successfully described by the Freundlich isotherm. The kinetics adsorption was well described by the pseudo-second-order model. Results demonstrated that the assynthesized hybrid composite is highly stable in harsh acidic medium, indicating its promise as an effective adsorbent for the removal of Sr2+ from acidic solution.

引用

页码：49 / 55

页数：7

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[1] Titanium dioxide nanotubes (TNT) in energy and environmental applications: An overview [J].