Single and competitive adsorption affinity of heavy metals toward peanut shell-derived biochar and its mechanisms in aqueous systems

doi:10.1016/j.cjche.2020.02.012

	Single and competitive adsorption affinity of heavy metals toward peanut shell-derived biochar and its mechanisms in aqueous systems
	Shan, Rui 1,3,4,5; Shi, Yueyue 2,3; Gu, Jing 1,3,4,5; Wang, Yazhuo 1,3,4,5; Yuan, Haoran 1,3,4,5
刊名	CHINESE JOURNAL OF CHEMICAL ENGINEERING
	2020-05-01
卷号	28 期号:5 页码:1375-1383
关键词	Pyrolysis Biochar Heavy metal removal Competitive adsorption
ISSN号	1004-9541
DOI	10.1016/j.cjche.2020.02.012
通讯作者	Yuan, Haoran(yuanhr@ms.giec.ac.cn)
英文摘要	Converting peanut shells into biochar by pyrolysis was considered an environmentally friendly and efficient method for agricultural solid waste disposal. The properties of peanut shell-derived biochar (PBC) under different temperature and its adsorption capacity of heavy metals were investigated. It was found that PBC400 exhibited the highest cumulative capability for heavy metals elimination in single solute because of its high specific surface area and rich functional groups. Furthermore, the competitive adsorption revealed that PBC had a substantial difference in adsorption affinity from diverse heavy metal ions, sorption capacity decreased as Pb2+ > Cu2+ > Cd2+ > Ni2+ > Zn2+, which was lower than in a single solute. The adsorption process using selected biochar was optimized with respect to pH, reaction time, adsorbent dose, and initial concentration of heavy metals. The kinetic data was well fitted with PSO model, and the Langmuir model was adopted for adsorption equilibrium data in both cases of single solutes and mixed solutes for all heavy metals, which indicated that the removal course was primarily explained by monolayer adsorption, and chemical adsorption occupied an important role. Therefore, peanut shells derived biochar could be a potential and green adsorbent for wastewater treatment. (C) 2020 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
资助项目	State's Key Project of Research and Development Plan, China[y804091001] ; National Natural Science Foundation of China[51776211] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0101]
WOS关键词	ACTIVATED CARBON ; WASTE-WATER ; SORPTION MECHANISMS ; HEXAVALENT CHROMIUM ; REMOVAL ; LEAD ; CADMIUM ; BIOMASS ; CD(II) ; PB(II)
WOS研究方向	Engineering
语种	英语
出版者	CHEMICAL INDUSTRY PRESS CO LTD
WOS记录号	WOS:000555486000020
资助机构	State's Key Project of Research and Development Plan, China ; National Natural Science Foundation of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/27557]
专题	中国科学院广州能源研究所
通讯作者	Yuan, Haoran
作者单位	1.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 2.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 4.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China 5.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Shan, Rui,Shi, Yueyue,Gu, Jing,et al. Single and competitive adsorption affinity of heavy metals toward peanut shell-derived biochar and its mechanisms in aqueous systems[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2020,28(5):1375-1383.
APA	Shan, Rui,Shi, Yueyue,Gu, Jing,Wang, Yazhuo,&Yuan, Haoran.(2020).Single and competitive adsorption affinity of heavy metals toward peanut shell-derived biochar and its mechanisms in aqueous systems.CHINESE JOURNAL OF CHEMICAL ENGINEERING,28(5),1375-1383.
MLA	Shan, Rui,et al."Single and competitive adsorption affinity of heavy metals toward peanut shell-derived biochar and its mechanisms in aqueous systems".CHINESE JOURNAL OF CHEMICAL ENGINEERING 28.5(2020):1375-1383.