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Bioresour Technol

Title:		Microwave-assisted pyrolysis derived biochar for volatile organic compounds treatment: Characteristics and adsorption performance
Author(s):		Xiang W; Zhang X; Cao C; Quan G; Wang M; Zimmerman AR; Gao B;
Address:		"School of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China. School of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, China. Electronic address: zhaxuy@xzit.edu.cn. School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China. Xuzhou Environmental Monitoring Center of Jiangsu Province, Xuzhou 221018, China. Department of Geological Sciences, University of Florida, Gainesville, FL 32611, USA. Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, USA"
Journal Title:		Bioresour Technol
Year:		2022
Volume:		20220506
Issue:
Page Number:		127274 -
DOI:		10.1016/j.biortech.2022.127274
ISSN/ISBN:		1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:		"Biochar derived from corn stalk doping with activated carbon was produced by microwave-assisted pyrolysis and applied to sorb volatile organic compounds (VOCs: benzene and o-xylene). Specific surface area (SSA), total pore volume (TPV) and micropore volume (MV) of microwave biochar increased with increasing microwave power with the maximum values 325.2 m(2).g(-1), 0.181 mL.g(-1) and 0.1420 mL.g(-1), respectively. Adsorption capacities of benzene and o-xylene on microwave biochar ranged 6.82-54.75 mg.g(-1) and 7.43-48.73 mg.g(-1), which were separate positively related with SSA, TPV, and MV. Benzene adsorption was mainly dominated by surface interaction and partition mechanisms, while o-xylene adsorption was governed by pore filling. The adsorption capacities of microwave biochar for benzene and o-xylene decreased by only 0.30% and 0.99% on the 5th cycle that illustrated the reasonably good reusability of microwave biochar. The results of this research demonstrate that microwave biochar is a promising adsorbent for VOCs removal"
Keywords:		Adsorption Benzene Charcoal Microwaves *Pyrolysis *Volatile Organic Compounds Microwave biochar Physicochemical properties Volatile organic compounds (VOCs);
Notes:		"MedlineXiang, Wei Zhang, Xueyang Cao, Chengcheng Quan, Guixiang Wang, Min Zimmerman, Andrew R Gao, Bin eng England 2022/05/10 Bioresour Technol. 2022 Jul; 355:127274. doi: 10.1016/j.biortech.2022.127274. Epub 2022 May 6"