Jump to main content
Jump to site search


Facile synthesis of hierarchical N-doped hollow porous carbon whisker with ultrahigh surface area via synergistic inner-outer activation for casein hydrolysate adsorption

Abstract

N-doped hollow porous carbon materials have attracted significant scientific interest in the field of peptides adsorption, drug delivery and catalysis. However, its facile synthesis is still a challenge, due to the lack of an ideal template and effective route for high specific surface area (SSA). In this work, we report a facile approach for preparing N-doped hollow porous carbon whiskers (HPCWs) by using CaCO3 whisker as a green template and double inner-activating agent. Two inner activators, CO2 and Ca(OH)2, are generated from CaCO3 whisker template during the carbonizing process. Among them, Ca(OH)2 was formed by H2O vapors reacted with template remaining CaO. Attributed to the drastic synergistic effect of inner-activation (CO2 or Ca(OH)2) and outer-activation (KOH), the synthesized HPCWs exhibit ultrahigh SSA (3007 m2•g-1), largest pore volumes (2.63 cm3•g-1) and controllable proportion of micropore (Sm/St, 60~86%). These intriguing pore structure characteristics of HPCWs endow with them rich target-oriented applications, as exemplified by their outstanding adsorption for casein hydrolysate (10080 mg•g-1), 2 order of magnitude (102) than common porous materials. This facile and green synthesis strategy may pave a new way to prepare hollow porous carbon materials with desired pore structure and high surface area for numerous applications.

Back to tab navigation

Supplementary files

Publication details

The article was received on 01 Sep 2017, accepted on 03 Nov 2017 and first published on 06 Nov 2017


Article type: Paper
DOI: 10.1039/C7TB02345F
Citation: J. Mater. Chem. B, 2017, Accepted Manuscript
  •   Request permissions

    Facile synthesis of hierarchical N-doped hollow porous carbon whisker with ultrahigh surface area via synergistic inner-outer activation for casein hydrolysate adsorption

    X. He, P. Liu, J. Liu, Y. Muhammad, M. Zhu, J. Sun, X. Cui, D. Liao and Z. Tong, J. Mater. Chem. B, 2017, Accepted Manuscript , DOI: 10.1039/C7TB02345F

Search articles by author

Spotlight

Advertisements