Biomass Derived, Hierarchically Porous, Activated Starbons® as Adsorbents for Volatile Organic Compounds

被引：2
|
作者：
Baird, Victoria [1 ]
Barker, Ryan E. [1 ]
Longhurst, Benjamin [1 ]
McElroy, C. Rob [1 ,2 ]
Meng, Siyu [1 ]
North, Michael [1 ]
Wang, Junzhong [1 ]
机构：
[1] Univ York, Green Chem Ctr Excellence, York YO10 5DD, England
[2] Univ Lincoln, Sch Chem, Lincoln LN6 7DL, England
来源：
CHEMSUSCHEM | 2023年 / 16卷 / 14期
关键词：
volatile organic compound; biomass derived; Starbon; hierarchically porous; adsorbent; MESOPOROUS CARBONACEOUS MATERIALS; CATALYTIC PERFORMANCE; ADSORPTION; CARBONS; TRANSFORMATIONS; NANOPARTICLES; SUBSTANCES; DESORPTION; POROSITY;
D O I：
10.1002/cssc.202300370
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The use of potassium hydroxide activated Starbons (R) derived from starch and alginic acid as adsorbents for 29 volatile organic compounds (VOCs) was investigated. In every case, the alginic acid derived Starbon (A800K2) was found to be the optimal adsorbent, significantly outperforming both commercial activated carbon and starch derived, activated Starbon (S800K2). The saturated adsorption capacity of A800K2 depends on both the size of the VOC and the functional groups it contains. The highest saturated adsorption capacities were obtained with small VOCs. For VOC's of similar size, the presence of polarizable electrons in lone pairs or pi-bonds within non-polar VOCs was beneficial. Analysis of porosimetry data suggests that the VOC's are being adsorbed within the pore structure of A800K2 rather than just on its surface. The adsorption was completely reversible by thermal treatment of the saturated Starbon under vacuum.
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页数：6
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