Effect of Polyethylene Glycol on the Properties of γ-Al2O3 Formation by Polyaluminum Chloride*

Chin.J.Chem.Eng. ›› 2012, Vol. 20 ›› Issue (5): 1034-1038.

Effect of Polyethylene Glycol on the Properties of γ-Al₂O₃ Formation by Polyaluminum Chloride^*

ZHAO Changwei¹, WANG Xiaonian², HE Jingsong¹, WANG Yuanyuan¹, LUAN Zhaokun¹

1. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;
2. The Equipment Research Institute of PLA's Second Artillery, Beijing 100085, China

Received:2011-07-11 Revised:2012-03-05 Online:2012-11-06 Published:2012-10-28
Supported by:
Supported by the National Natural Science Foundation of China (21076219);the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry (ITLXHG2009071702)

Effect of Polyethylene Glycol on the Properties of γ-Al₂O₃ Formation by Polyaluminum Chloride^*

赵长伟¹, 王孝年², 何劲松¹, 王园园¹, 栾兆坤¹

1. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;
2. The Equipment Research Institute of PLA's Second Artillery, Beijing 100085, China

通讯作者: ZHAOChangwei,E-mail:zhaocw@rcees.ac.cn
基金资助:
Supported by the National Natural Science Foundation of China (21076219);the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry (ITLXHG2009071702)

Abstract

Abstract: A polyaluminium chloride solution with high Al₁₃ content self-prepared was used as material for preparing the spherical γ-Al₂O₃ by the sol-gel and oil-drop method. Polyethylene glycol with different molecular mass was used as surfactant to investigate the effect on property of γ-Al₂O₃. The physical property was characterized by ²⁷Al NMR (nuclear magnetic resonance) spectra, X-ray diffraction, FT-IR (Fourier transform infrared spectroscopy) and TG-DTA (thermogravimetric-differential thermal analysis). The results showed that surface area, pore volume and pore size of γ-Al₂O₃ all increased with the increase of polyethylene glycol molecular mass in the experimental research range, and polyethylene glycol 10000 was the most suitable pore forming additive. γ-Al₂O₃ with surface area of 339 m²·g^-1, pore volume of 0.59 cm³·g^-1 and pore diameter of 6.9 nm were obtained at 450℃.

Key words: γ-Al₂O₃, polyaluminum chloride, preparation, polyethylene glycol

摘要： A polyaluminium chloride solution with high Al₁₃ content self-prepared was used as material for preparing the spherical γ-Al₂O₃ by the sol-gel and oil-drop method. Polyethylene glycol with different molecular mass was used as surfactant to investigate the effect on property of γ-Al₂O₃. The physical property was characterized by ²⁷Al NMR (nuclear magnetic resonance) spectra, X-ray diffraction, FT-IR (Fourier transform infrared spectroscopy) and TG-DTA (thermogravimetric-differential thermal analysis). The results showed that surface area, pore volume and pore size of γ-Al₂O₃ all increased with the increase of polyethylene glycol molecular mass in the experimental research range, and polyethylene glycol 10000 was the most suitable pore forming additive. γ-Al₂O₃ with surface area of 339 m²·g^-1, pore volume of 0.59 cm³·g^-1 and pore diameter of 6.9 nm were obtained at 450℃.

关键词: γ-Al₂O₃, polyaluminum chloride, preparation, polyethylene glycol

ZHAO Changwei, WANG Xiaonian, HE Jingsong, WANG Yuanyuan, LUAN Zhaokun. Effect of Polyethylene Glycol on the Properties of γ-Al₂O₃ Formation by Polyaluminum Chloride^*[J]. Chin.J.Chem.Eng., 2012, 20(5): 1034-1038.

赵长伟, 王孝年, 何劲松, 王园园, 栾兆坤. Effect of Polyethylene Glycol on the Properties of γ-Al₂O₃ Formation by Polyaluminum Chloride^*[J]. Chinese Journal of Chemical Engineering, 2012, 20(5): 1034-1038.

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Effect of Polyethylene Glycol on the Properties of γ-Al₂O₃ Formation by Polyaluminum Chloride^*

Effect of Polyethylene Glycol on the Properties of γ-Al₂O₃ Formation by Polyaluminum Chloride^*

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