Innovative nanoporous carbons with ultrahigh uptakes for capture and reversible storage of CO2and volatile iodine.
Porous carbons as solid-state adsorbents have recently attracted considerable interest in the areas of storage and capture of CO2as well as the adsorption of radioactive matters. In this work, cigarette butts, one kind of common wastes referring to the filters, were utilized to prepare highly porous carbons by KOH activation in argon atmosphere. The resulting porous carbon shows a high specific surface area of up to 2751m2g-1with abundant micropores. The resulting porous carbon exhibits excellent iodine uptake of 262wt% and high CO2adsorption capacity of 6.0mmolg-1at ambient pressure and 273K, which both are among the highest values reported to date. Given these excellent iodine uptake, CO2adsorption capacity, ease of preparation as well as good physiochemical stability, the porous carbons derived from cigarette butts show great potential in the reversible adsorption of radioactive iodine and CO2.
College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, PR China, PR China.
Hanxue
H
Sun
College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, PR China, PR China.
Peiqing
P
La
State Key Laboratory of Molecular Reaction Dynamics, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China.
Ruixia
R
Yang
College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, PR China, PR China.
Zhaoqi
Z
Zhu
College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, PR China, PR China.
Weidong
W
Liang
College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, PR China, PR China.
Baoping
B
Yang
College of Petrochemical Technology, Lanzhou University of Technology, Langongping Road 287, Lanzhou 730050, PR China, PR China. Electronic address: lian2010@lut.cn.
An
A
Li
State Key Laboratory of Molecular Reaction Dynamics, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China. Electronic address: dengwq@dicp.ac.cn.
Weiqiao
W
Deng
Adsorption; Iodine uptake; Porous carbon; Sustainability