Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (11): 2076.doi: 10.7503/cjcu20160216

• Physical Chemistry • Previous Articles     Next Articles

Preparation of Cyclodextrin-based Mesoporous Carbon and Its Catalytic Performance

WANG Huichun1,*(), WANG Fachun1, LI Baolin2   

  1. 1. Educational Key Lab of Environment and Resource in Qinghai-Tibet Platean, College of Life and Geography,Qinghai Normal University, Xining 810008, China
    2. School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
  • Received:2016-04-07 Online:2016-11-10 Published:2016-10-17
  • Contact: WANG Huichun E-mail:hcwang@qhnu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(No.21557001), the “Chun-Hui”Fund of Ministry of Education, China(No.Z2015048), the Natural Science Foundation of Qinghai Province, China(No.2014-ZJ-778) and the Foundation of China Scholarship Council(No.20135044)

Abstract:

Mesoporous carbons with tailored pore size were prepared by technologies of ammonium perchlorate oxidation and hard template with hydroxypropyl-β-cyclodextrin as the structure-director and tetraethoxysilane as the silica precursor. The structures and surface chemistry properties of these carbon materials were characterized by N2 adsorption, TEM, XRD and FTIR measurements. Their catalytic performances were investigated through the reduction of nitroaromatic using hydrazine hydrate as the reducing agent. The results showed that mesoporous carbon materials prepared using hydroxypropyl-β-cyclodextrin-based silicas as inorganic templates synthesized by ammonium perchlorate oxidation have worm-like pore structure and higher catalytic activity, especially mesoporous carbon prepared through oxidation under room temperature, the yield of p-methylaniline is 88.48% in the presence of the catalyst, and it still keeps higher activity after being reused for 4 times through a simple filtration, washed with ethanol and dried. Higher surface area and pore volume, and the presence of abundant surface oxygen-containing functional groups, which originates from the special preparation process of carbon material, are likely responsible for the high catalytic property of these mesoporous carbon materials.

Key words: Hydroxypropyl-β-cyclodextrin, Mesoporous carbon, Ammonium perchlorate oxidation, Nitroaromatic, Catalytic performance

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