Influence of one-step and two-step KOH activation on activated carbon characteristics

被引：0
作者：
Oginni O. [1 ]
Singh K. [1 ]
Oporto G. [1 ]
Dawson-Andoh B. [1 ]
McDonald L. [2 ]
Sabolsky E. [3 ]
机构：
[1] School of Natural Resources, West Virginia University, Morgantown, 26506, WV
[2] Division of Plant and Soil Sciences, West Virginia University, Morgantown, 26506, WV
[3] Department of Mechanical Engineering, West Virginia University, Morgantown, 26506, WV
来源：
Bioresource Technology Reports | 2019年 / 7卷
关键词：
Activated carbon; Adsorption; BET surface area; Biochar; Biomass;
D O I：
10.1016/j.biteb.2019.100266
中图分类号：
学科分类号：
摘要：
This study investigated the influence of one-step and two-step KOH activation on the characteristics of activated carbons. The biomass precursors [Kanlow Switchgrass (KS) and Public Miscanthus (PM)] and their biochars produced at pyrolysis temperature of 500 °C, were impregnated with KOH and activated at a temperature 900 °C for 30 min in an inert condition. BET surface area, pore characteristics, surface functional groups and microstructures of the activated carbons were examined. The biomass-derived activated carbons (KOH-KSBM and KOH-PMBM) had the highest BET surface areas of 1272 and 1597 m2/g respectively. The activated carbons were used in adsorbing acetaminophen and caffeine and the biomass-derived activated carbons presented an overall better adsorption characteristic. © 2019
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