Preparation and Characterization of Nano-Hydroxyapatite and Its Adsorption Behavior Toward Copper Ions

被引：5

作者：

Bi, Yong-Guang ^{[1
]}

Liu, Di ^{[2
]}

Liu, Xue-Mei ^{[2
]}

Zhou, Shao-Qi ^{[1
,3
]}

机构：

[1] South China Univ Technol, Sch Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China

[2] Guangdong Pharmaceut Univ, Sch Pharm, Guangzhou 510006, Guangdong, Peoples R China

[3] Guizhou Acad Sci, Guiyang 550001, Peoples R China

来源：

NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2017年 / 9卷 / 05期

关键词：

Hydroxyapatite; Copper; Kinetic Study; Water Treatment; CARBON-PASTE ELECTRODE; WASTE-WATER TREATMENT; ACID DETECTION SYSTEM; HEAVY-METALS; AQUEOUS-SOLUTION; MAGNETIC NANOPARTICLES; ACETYLCHOLINESTERASE BIOSENSOR; RISK-ASSESSMENT; REMOVAL; DELIVERY;

D O I：

10.1166/nnl.2017.2369

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hydroxyapatite nanoparticles were synthesized and were used as an adsorbent for the removal of copper from aqueous solution. The characteristics of HAP were analyzed by scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and Fourier transform infrared (FTIR). Batch adsorption experiments were carried out to investigate the effects of different parameters including pH, contact time, temperature, dosage of HAP and initial copper concentration on adsorption efficiency, the results of desorption revealed that HAP possessed a good ability to adsorb copper. The pseudo-first-order and pseudo-second-order model were used to examine the mechanism of the adsorption process, it was found that the kinetics data were fitted well by pseudo-second-order model, the maximum adsorption capacity of HAP adsorbents towards Cu2+ was 4.30x10(4) mg/g. The results demonstrated that HAP can be used as adsorbent with high adsorbtion efficiency.

引用

页码：810 / 816

页数：7

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