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Acta Physico-Chimica Sinica  2010, Vol. 26 Issue (06): 1711-1716    DOI: 10.3866/PKU.WHXB20100624
PHYSICAL CHEMISTRY OF MATERIALS     
Synthesis and Adsorption Properties of Amino-Functionalized H2N-Zr-Ce-SBA-15 Mesoporous Materials with Short Mesochannels
YUAN Jin-Fang, LI Jian-Sheng, GU Juan, WANG Fang, SUN Xiu-Yun, HAN Wei-Qing, WANG Lian-Jun
Department of Environmental Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China; Institute of Fine Chemical and Engineering, Henan University, Kaifeng 475001, Henan Province, P. R. China
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Abstract  

Amino-functionalizedH2N-Zr-Ce-SBA-15 (H2N-ZCS)mesoporousmaterialswith unique hexagonal platelet morphologies and short channels were synthesized by a post-grafting method using [1-(2-amino-ethyl)-3-aminopropyl] trimethoxysilane (AAPTS) and tetraethyl orthosilicate (TEOS) as a silica source, zirconyl chloride and cerous nitrate as precursors, and pluronic P123 triblock copolymer as a structure directing agent. The as-synthesized materials were characterized by low-angle X-ray diffraction (LXRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), thermogravimetry (TG), and N2 adsorption/desorption isotherms. Characterization revealed that the functionalized H2N-ZCS mesoporous materials have unique hexagonal platelet morphologies with short channels and they possess a highly ordered two-dimensional hexagonal mesoporous structure similar to conventional SBA-15. The uptake of anionic dye onto the organic functionalized H2N-ZCS and H2N-SBA-15 were compared. The results demonstrate that H2N-ZCS materials have higher adsorption rates and adsorption capacities compared with H2N-SBA-15. The resultant H2N-ZCS materials with short channels are superior to conventional SBA-15 in terms of fiber morphology facilitating molecular diffusion when used in adsorption, separation, and catalytic processes.



Key wordsAdsorption      Amino-functionalized H2N-Zr-Ce-SBA-15      Mesoporous materials      Post-synthesis-grafting method      Synthesis     
Received: 30 December 2009      Published: 30 April 2010
MSC2000:  O647  
  O648  
Corresponding Authors: WANG Lian-Jun     E-mail: lijsh@mail.njust.edu.cn
Cite this article:

YUAN Jin-Fang, LI Jian-Sheng, GU Juan, WANG Fang, SUN Xiu-Yun, HAN Wei-Qing, WANG Lian-Jun. Synthesis and Adsorption Properties of Amino-Functionalized H2N-Zr-Ce-SBA-15 Mesoporous Materials with Short Mesochannels. Acta Physico-Chimica Sinica, 2010, 26(06): 1711-1716.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20100624     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2010/V26/I06/1711

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