Aqueous dye adsorption on ordered mesoporous carbons

被引：163

作者：

Yuan Xun

Zhuo Shu-Ping ^{[1
]}

Xing Wei

Cui Hong-You

Dai Xiao-Dong

Liu Xin-Mei

Yan Zi-Feng

机构：

[1] Shandong Univ Technol, Sch Chem Engn, Zibo 255049, Peoples R China

[2] China Univ Petr, State Key Lab Heavy Oil Proc, Key Lab Catalysis, CNPC, Dongying 257061, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2007年 / 310卷 / 01期

关键词：

ordered mesoporous carbon; N-2; adsorption; adsorption isotherm; adsorption kinetics;

D O I：

10.1016/j.jcis.2007.01.069

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ordered mesoporous carbons (OMCs) with varying pore size, and microporous carbon, CFY, were synthesized using ordered mesoporous silica SBA-15 and NaY zeolite as hard templates, respectively. N-2 adsorption tests show that the synthesized OMCs possess abundant mesopores and centralized mesopore distribution. Methylene blue (MB) and neutral red (NR) were used as probe molecules to investigate their adsorption behaviors on OMCs and CFY. As evidenced by adsorption tests, the volume of mesopores of which the pore size is larger than 3.5 nm is a crucial factor for the adsorption capacity and adsorption rate of MB on OMCs. However, the most probable pore diameter of OMCs was found to be vital to the adsorption capacity and adsorption rate of NR. Theoretical studies show that the adsorption kinetics of MB and NR on OMCs can be well depicted by using pseudo-second-order kinetic model. (c) 2007 Elsevier Inc. All rights reserved.

引用

页码：83 / 89

页数：7

共 20 条

[1] Synthesis of macro-, meso-, and microporous carbons from natural and synthetic sources, and their application as adsorbents for the removal of quaternary ammonium compounds from aqueous solution [J].