Chemical Research in Chinese Universities ›› 2015, Vol. 31 ›› Issue (3): 484-488.doi: 10.1007/s40242-015-4443-5

• Articles • Previous Articles    

Synthesis of Liquid-like Trisilanol Isobutyl-POSS NOHM and Its Application in Capturing CO2

BAI Haipeng, ZHENG Yaping, LI Peipei, ZHANG Aibo   

  1. School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710072, P. R. China
  • Received:2014-11-26 Revised:2015-04-02 Online:2015-06-01 Published:2015-04-13
  • Contact: ZHENG Yaping E-mail:zhengyp@nwpu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.51373137, 51373136) and the Key Project of the Graduation Design Project of Northwestern Polytechnical University of China(No.20141101).

Abstract:

The trisilanol isobutyl polyhedral oligomeric silsesquioxane(POSS) was fabricated into liquid-like nanoparticle organic hybrid materials(NOHMs) with γ-(2,3-epoxypropoxy)propytrimethoxysilane as corona and polyetheramine M2070 as canopy, and the product was called liquid-like POSS NOHM. The liquid-like POSS NOHM has a low viscosity at room temperature without any solvent and the mass fraction of trisilanol isobutyl POSS was 23.38%. The liquid-like POSS NOHM shows great CO2 capturing property with a capacity of 2.108 mmol/g(pCO2=6 MPa). The physical adsorption increased obviously with the pressure going up and it may make a difference between liquid-like POSS NOHMs and traditional monoethamolamine(MEA) based CO2 absorbent. The recycle property was also studied. The NOHM behaved as fresh product even after 10 cycles.

Key words: Liquid-like nanoparticle organic hybrid material, Polyhedral oligomeric silsesquioxane, CO2 capture