膜科学与技术

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Preparation of nanoparticles with a gas-liquid membrane contactor

Authors： Qing Chang1,2, Zhiqian Jia1?, Jin Qin1, Aynur.Mamat1

Units： 1. Lab for Membrane Science and Technology, College of Chemistry, Beijing Normal University, Beijing 100875, PRC

KeyWords： membrane contactor; membrane absorption; gas-liquid reaction; nanoparticles preparation

ClassificationCode：TQ 028.1

year,volume(issue):pagination： 2012,32(3):79-85

Abstract：

Nanosized calcium carbonate, strontium carbonate, aluminium hydroxide and alumina particles were prepared with a gas-liquid membrane contactor. The effects of Ca(OH)2 concentration and CO2 partial pressure on the absorption rate were estimated according to the gas-liquid reaction theory. The theoretical predictions are consistent with the experimental results. In the absence of additives, the particles, about 70 nm in size, are not sensitive to Ca(OH)2 concentration and CO2 pressure. In the presence of PVP and PEG, the particles are well-dispersed and the size can be reduced to 48 nm. The as-obtained SrCO3 nanoparticles are spherical, uniform in size. The alumina hydrates obtained are amorphous, about 50nm in size. After calcining at 800°C for 8 h, the amorphous Al(OH)3 converts to alumina and the particles size increases to 70 nm. After reaction, the membrane was washed with dilute hydrochloric and the membrane can be reused for at least 9 times without apparent performance deterioration.

Funds：

国家自然科学基金（20676016）

AuthorIntro：

常青（1987—），女，山西人，硕士研究生，主要研究方向为膜科学与技术，E-mail：qchang@mail.bnu.edu.cn. * 通讯联系人, E-mail： zhqjia@bnu.edu.cn

Reference：

[1] Wang Mo Jung, Sung Hoon Kang, Woo-Sik Kim, Chang Kyun Choi, Particle morphology of calcium carbonate precipitated by gas-liquid reaction in a Couette-Taylor reactor, Chem. Eng. Sci. 55 (2000) 733-747
[2] D. Gomez-Diaz , J. M. Navaza, B.Sanjurjo, Analysis of mass transfer in the precipitation process of calcium carbonate using a gas/liquid reaction, Chem. Eng. J. 116(2006)203-209
[3] Li Wang, Yongfa Zhu, Effects of nanostructure on catalytic degradation of ethanol on SrCO3 catalysts, J. Phys. Chem. B 109(2005)5118-5123
[4] Tai CliffordY, Tai Chia-te, Liu Hwai-shen, Synthesis of submicron barium carbonate using a high-gravity technique,Chem. Eng. Sci. 61 (2006) 7479-7486
[5] C. H. Kim, C.S. Ri, D.H. Lee, H.S. Choo, B.K. Lee, J.J. Chung, S.D. Kim. Effect of pH and concentration on the synthesis of monodispersed spherical fine zirconia powders using gas-liquid phase reaction, Symposium on nanostructured powders and their industrial applications, San Francisco, California, Apr 13-15, 1998
[6] P.W. Wu, L. Gao, Synthesis of CdS nanoparticles in reverse micelles by gas-liquid reaction technique, J. Inorg. Mater. 18(2003) 4937-941
[7] J. Venkateswarlu, L.P. Robert, E.R. Jeffery, D. Dan, E.R. Andrew, E.S. Laura, D.F. Bradley, Facile synthesis of tin oxide nanoparticles stabilized by dendritic polymers, J. Am. Chem. Soc. 128 (2006) 420–421.
[8] R. Narayanan, M. A. El-Sayed, Changing catalytic activity during colloidal platinum nanocatalysis due to shape changes: electron-transfer reaction, J.Am.Chem.Soc.126(2004)7194-7195
[9] Li Jing-Liang, Chen Bing-Hung, Review of CO2 absorption using chemical solvents in hollow fiber membrane contactors. Separation and Purification Technology,2005,41 :109–122
[10] M.Mavroudi,S.P.Kaldis,G..P.Sakellaropoulos.A study of mass transfer resistance in membrane gas-liquid contacting processes. Journal of Membrane Science, 2006, 272:103–115
[11] Kumar P.S., Hogendoorn J.A., Feron P.H.M., G.F. Versteeg. Approximate solution to predict the enhancement factor for the reactive absorption of a gas in a liquid flowing through a microporous membrane hollow fiber. Journal of Membrane Science,2003,213:231–245
[12] H. Kreulen, C.A. Smolders, G.F. Versteeg, W.P.M. van Swaaij, J. Membr. Sci. 78 (1993) 197.
[13] V. Y. Dindore, D. W. F. Brilman, G.F. Versteeg, Hollow fiber membrane contactor as a gas-liquid model contactor, Chem. Eng. Sci. 60 (2005) 467-479.

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