Synthesis and CO2 capture properties of mesoporous carbon nitride materials

被引：138

作者：

Deng, Qing-Fang ^{[1
]}

Liu, Lei ^{[1
]}

Lin, Xiu-Zhen ^{[1
]}

Du, Gaohui ^{[2
]}

Liu, Yuping ^{[1
]}

Yuan, Zhong-Yong ^{[1
]}

机构：

[1] Nankai Univ, Coll Chem, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China

[2] Zhejiang Normal Univ, Inst Phys Chem, Key Lab Minist Educ Adv Catalysis Mat, Jinhua 321004, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 203卷

基金：

中国国家自然科学基金;

关键词：

Mesoporous; Carbon nitride; Carbon; CO2; adsorption; HIGH-SURFACE-AREA; DIOXIDE; ADSORPTION; SILICA; FORMALDEHYDE; ADSORBENTS; CAPACITY; METHANE; FILMS;

D O I：

10.1016/j.cej.2012.06.124

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Mesoporous carbon nitride (MCN) and carbon nitride-carbon (MCN/C) composites with a partly graphitized structure are synthesized by using mesoporous silica SBA-15 as a hard template and ethylenediamine and carbon tetrachloride as precursors, possessing uniform mesopore size of 6.3 nm, high surface area of 278-338 m(2)/g, and high nitrogen content of 20.5-24.9% with abundant basic sites. The synthesized MCN and MCN/C composites are used as adsorbents for CO2 capture, showing high adsorption capacity and good reusability. The presence of carbon coating layer in MCN/C composites introduced more micropores, which favored the capture of CO2, exhibiting high CO2 capture capacity of 3.05 mmol/g at 0 degrees C and 2.35 mmol/g at 25 degrees C and 760 mm Hg, with good CO2/N-2 selectivity and excellent regeneration stability. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：63 / 70

页数：8

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