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| Influence of Al{3+} doping on performance of silica gel adsorptive materials |
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| 华南理工大学传热强化与过程节能教育部重点实验室 |
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Cite this article:
. Influence of Al{3+} doping on performance of silica gel adsorptive materials. Chin J Mater Res, 2004, 18(6): 641-646.
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Abstract Al$^{3+}$ doped silica gel adsorptive materials were obtained by treating ceramic
fiber matrix with sequential impregnation of aqueous solution of sodium silicate
(Na$_{2}$SiO$_{3}$), aluminum salt etc. FTIR spectra, scanning electron microscope
and energy dispersive X--ray spectrometer analysis indicate the existence and
percentage of doping Al$^{3+}$ in the adsorptive materials. According to the results
from porous medium surface area analyzer, several percent Al$^{3+}$ doping leads
to the increase of BET surface area and total pore volume ,which raises active sites
for adsorption, and influences pore size and distribution on the surface of silica gel,
so the adsorbing capacities of Al$^{3+}$ doped silica gel are improved. The formation
of the bond of Al--O--Si (Al$^{3+}$ doping) results in the increase of supporting power
and heat conductivity of pore framework of adsorptive materials, therefore, heat
resisting property, tensile strength and burst index of Al$^{3+}$ doped silica gel
have been markedly enhanced.
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Received: 30 December 2004
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1 DAI Yanjun, YU Jindi, ZHANG Hefei, Acta Energiae Solaris Sinica, 10(4), 388(1998) (代彦军,俞金娣,张鹤飞,太阳能学报,10(4),388(1998))
2 S.Neti, E.I.Wolfe, Applied Thermal Engineering, 20, 309(2000)
3 Y.I.Aristov, G.Retuccia, G.Cacciola, V.N.Parmon, Applied Thermal Engineering, 22, 191(2002)
4 Fukushima, Shokubai, 39, 281(1997)(in Japanese)
5 H.Ichiura, N.Okamura, T.Kitaoka, H.Tanaka, Journal of Materials Science, 36, 4921(2001)
6 DING Jing, YANG Xiaoxi, LI Guoquan, LIANG Shizhong, TAN Yingke, Chemical Engineering, 26(6), 11(1998) (丁静,杨晓西,李国权,梁世中,谭盈科,化学工程,26(6),11(1998))
7 T.Kuma, T. Hirose, Journal of Chemical Engineering of Japan, 29(2), 376(1996)
8 T.Hirose, M.Goto, A.Kodama, Journal of Solar Energy of Engineering, 120, 45(1998)
9 Kiyoshi Okada, Takahiro Tomita, Y.Kameshima, A.Yasumori, K.J.D.Mackenzie, Journal of Colloid & Interface Science, 219(1), 195(1999) (in Japanese)
10 K.Okada, T.Tomita, Y.Kameshima, A.Yasumori, T.Yano, K.J.D.Mackenzie, Micropours and Mesopours Materials, 37(3), 355(2000)
11 Li Xianyang, M.Uehara, N.Enomoto, J.Hojo, Journal of the Ceramic Society of Japan, 109(10), 818(2001)
12 N.Enomoto, K.Kavasaki, M.Yashida, X.Y.Li, M.Uehara, J.Hojo, Solid State Ionics, 151, 171(2002)
13 ZHANG Jiangchi, ZHOU Yan, ZOU Lingfeng, Petrochemical Technology, 2, 83(2002) (张奖池,周艳,邹凌峰,石化技术,2,83(2002))
14 SHEN Zhong, Chemical Journal of Chinese Universities, 5(5), 486(1989) (沈钟,高等学校化学学报,5(5),486(1989)) |
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