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Citation: HUANG Lizhen, LI Erdong, LI Bo, YANG Yonggang, DONG Chuan, SHUANG Shaomin. Preparation of Water-based β-Cyclodextrin/Fe₃O₄ Magnetic Fluid and Its Adsorption Behavior for Neutral Red[J]. Chinese Journal of Applied Chemistry, ;2014, 31(5): 607-612. doi: 10.3724/SP.J.1095.2014.30358 shu

Preparation of Water-based β-Cyclodextrin/Fe₃O₄ Magnetic Fluid and Its Adsorption Behavior for Neutral Red

1.
a School of Chemistry and Chemical Engineering, Taiyuan 030006, China;
2.
b Institute of Loess Plateau, Shanxi University, Taiyuan 030006, China

Corresponding author: SHUANG Shaomin,
Received Date: 18 July 2013
Available Online: 29 September 2013
Fund Project: 国家自然科学基金资助项目(21175087) (21175087)International Science&Technology Cooperation Program of China (2012DFA207705) (2012DFA207705)山西省回国留学人员科研资助项目(重点-1) (重点-1)

Citric acid grafted β-cyclodextrin(CA-β-CD) modified water-based Fe₃O₄ magnetic fluid was synthesized via chemical coprecipation method.The structure,morphology,composition and magnetic property of the magnetic fluid were characterized by Fourier transform infrared spectroscopy(FTIR),transmission electron microscopy(TEM),thermogravimetric analysis(TGA),X-ray diffraction(XRD) and vibrating sample magnetometer(VSM).The results show that the magnetic particles of magnetic fluid disperse well and the diameters are in the range of (7±2) nm.The magnetic fluid is super-paramagnetic and magnetic saturation values are 62 A·m²/Kg and 43 A·m²/Kg before and after modification by CA-β-CD.The magnetic fluid was used as an adsorbent for neutral red(NR).The adsorption time,the initial concentration of NR and pH of the solution were studied.The results show that the magnetic fluid has the highest adsorption effect for NR,maximum adsorption capacity is 244 mg/g and the adsorption efficiency is up to 99.8% under the neutral condition.
- β-cyclodextrin,
- water-based magnetic fluid,
- preparation,
- adsorption,
- neutral red
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Preparation of Water-based β-Cyclodextrin/Fe₃O₄ Magnetic Fluid and Its Adsorption Behavior for Neutral Red