Synthesis of Polyacrylic Acid Stabilized Amorphous Calcium Carbonate Nanoparticles and Their Application for Removal of Toxic Heavy Metal ions in Water

被引：155

作者：

Cai, Guo-Bin ^{[1
]}

Zhao, Gui-Xia ^{[2
]}

Wang, Xiang-Ke ^{[2
]}

Yu, Shu-Hong ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei Natl Lab Phys Sci Microscale, Div Nanomat & Chem, Hefei 230026, Anhui, Peoples R China

[2] Chinese Acad Sci, Inst Plasma Phys, Key Lab Novel Thin Film Solar Cells, Hefei 230031, Anhui, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 30期

基金：

美国国家科学基金会; 对外科技合作项目（国际科技项目）;

关键词：

HOLLOW NANOSTRUCTURES; THIN-FILMS; TRANSFORMATION; CADMIUM; PHASE; ORGANIZATION; COMPOSITES; ADSORPTION; SORPTION; SORBENTS;

D O I：

10.1021/jp103464p

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：

We report an efficient method for synthesis of poly(acrylic acid) stabilized amorphous calcium carbonate nanoparticles (ACC) and their application for removal of toxic heavy metal ions from aqueous solutions. The maxim removal capacities for Cd2+, Pb2+, Cr3+, Fe3+, and Ni2+ ions were found to be 514.62 mg g(-1), 1028.21, 258.85, 320.5, and 537.2 mg g(-1), respectively. The distinguishing features of the ACC nanoparticles in water treatment involve not only high removal capacities, but also decontamination of trace ions. Approximately 83.0% on average removal can be achieved in the treatment of polluted water containing trace amount of radioactive Eu3+ ions. A precipitation transformation mechanism is proposed to play a key role in such water treatment.

引用

页码：12948 / 12954

页数：7

共 55 条

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