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Preparation and Adsorption Properties of Biomass Activated Carbon from Ginger Stems
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Author NameAffiliation
Jinling Liu Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao, Shandong Province, 266422, China 
Xiaoming Song Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao, Shandong Province, 266422, China 
Shanshan Gao Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning, Guangxi Zhuang Autonomous Region, 530004, China 
Fushan Chen Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao, Shandong Province, 266422, China 
Fund Project:This work was financially supported by the Natural Science Foundation of Shandong Province (ZR2017QB002), the key scientific research projects in Shandong Province (2018GGX104003), the Taishan Scholar Program of Shandong (ts201511033), the Foundation of Key Laboratory of Pulp and Paper Science and Technology of Ministry of Education/Shandong Province of China (No. KF201705) and Shandong Province major innovation project (2018CXGC1001).
 
Abstract:Biomass activated carbon (BAC) was produced from ginger stems by carbonization and activation presented high specific surface areas and mesoporous structures. The carbonization temperature of the ginger stems were controlled within 500~900℃. The optimal carbonization condition is as follows: carbonization temperature of 700℃, carbonization time of 6 h. The determined optimum activation condition is: temperature of 800℃, activator of KOH and carbonized product/alkali ratio of 1:4 (w/w). The carbonization yield, BAC yield and Brunauer-Emmett-Teller (BET) surface area were measured and the adsorption performance of BAC to nitrogen was investigated. The results showed that the nitrogen adsorption isotherm curve was as type I isotherm. It was finally determined that the BET surface area was 660 m2/g under the abovementioned optimal conditions of carbonization and activation. The FESEM analysis indicates that the obtained BAC is of micropore structure.
keywords:ginger stems  biomass activated carbon  carbonization  activation
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