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化学学报
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化学学报 ›› 2007, Vol. 65 ›› Issue (17): 1814-1820. 上一篇    下一篇

研究论文

有序介孔炭的合成及液相有机大分子吸附性能研究

袁勋1, 柳玉英1, 禚淑萍*,1, 邢伟*,1, 孙运泉1, 代晓东2, 刘欣梅2, 阎子峰2   

  1. (1山东理工大学化学工程学院 淄博 255049)
    (2中国石油大学重质油加工国家重点实验室 中油集团催化重点实验室 东营 257061)
  • 投稿日期:2006-07-29 修回日期:2007-04-17 发布日期:2007-09-14
  • 通讯作者: 禚淑萍, 邢伟

Synthesis of Ordered Mesoporous Carbon and Its Application in Aqueous Macromolecular Adsorption

YUAN Xun1; LIU Yu-Ying1; ZHUO Shu-Ping*,1; XING Wei*,1; SUN Yun-Quan1; DAI Xiao-Dong2; LIU Xin-Mei2; YAN Zi-Feng2   

  1. (1 School of Chemical Engineering, Shandong University of Technology, Zibo 255049)
    (2 State Key Laboratory for Heavy Oil Processing, Key Laboratory of Ca-talysis, China National Petroleum Corporation, China University of Petroleum, Dongying 257061)
  • Received:2006-07-29 Revised:2007-04-17 Published:2007-09-14
  • Contact: ZHUO Shu-Ping, XING Wei

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1935

被引次数

34 | 11

分别采用有序介孔氧化硅SBA-15和NaY分子筛为硬模板合成了系列有序介孔炭OMC和微孔炭CFY. N2静态吸附测试表明, 所合成的介孔炭具有丰富的介孔结构和集中的介孔分布. 以亚甲基蓝为探针分子, 研究其在有序介孔炭OMC和微孔炭CFY上的吸附行为. 研究结果表明, 有序介孔炭中大于3.5 nm的大介孔孔容是决定亚甲基蓝吸附容量和吸附速率的关键因素. 吸附动力学理论研究表明, 准二级动力学方程可以很好地描述亚甲基蓝分子在介孔炭上吸附动力学行为.

关键词: 有序介孔炭, 微孔炭, N2吸附, 亚甲基兰, 吸附动力学

Series of ordered mesoporous carbons, OMCs, and mircoporous carbon, CFY, were synthesized using ordered mesoporous silica SBA-15 and NaY zeolite as hard template, respectively. N2 adsorption tests showed that the synthesized mesoporous carbons possess abundant mesopores and centralized mesopore distribution. Methylene blue was used as probe molecule to investigate its adsorption behaviors on OMCs and CFY. Results showed that the mesopores of which the pore size is larger than 3.5 nm is crucial for the adsorption capacity and adsorption velocity of methylene blue. Theoretical studies showed that the adsorption kinetics of methylene blue on mesoporous carbons can be well depicted using pseudo-second-order kinetics model.

Key words: ordered mesoporous carbon, mircoporous carbon, N2 adsorption, methylene blue, adsorption kinetics