Adsorption of Hg(II) in an Aqueous Solution by Activated Carbon Prepared from Rice Husk Using KOH Activation

doi:10.1021/acsomega.0c03992

	Adsorption of Hg(II) in an Aqueous Solution by Activated Carbon Prepared from Rice Husk Using KOH Activation
	Liu, Zhiyuan 1,2,3; Sun, Yong 1,2; Xu, Xinrui 1,2; Qu, Jingbo 1,2; Qu, Bin 1,2,3
刊名	ACS OMEGA
	2020-11-17
卷号	5 期号:45 页码:29231-29242
ISSN号	2470-1343
DOI	10.1021/acsomega.0c03992
通讯作者	Sun, Yong(sunyong@neau.edu.cn)
英文摘要	With the development of industry, the discharge of wastewater containing mercury ions posed a serious threat to human health. Using biomass waste as an adsorbent to treat wastewater containing mercury ions was a better way due to its positive impacts on the environment and resource saving. In this research, activated carbon (AC) was prepared from rice husk (RH) by the KOH chemical activation method. The characterization results of scanning electron microscopy (SEM), Brunauer-Emmett-Teller (BET), Fourier transform infrared (FTIR), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) showed that rice husk-activated carbon (RHAC) had good pore structure and oxygen-containing functional groups. The influences of contact time, initial concentration of Hg(II), adsorbent dosage, pH, and ionic strength on mercury ion removal were investigated. The Langmuir model was most suitable for the adsorption isotherm of RHAC, and its maximum adsorption capacity for Hg(II) was 55.87 mg/g. RHAC still had a high removal capacity for Hg(II) after five regeneration cycles. RHAC had excellent removal efficiency for mercury ion wastewater. At the same time, RH could be used as a nonpolluting and outstanding characteristic adsorbent material.
资助项目	National Natural Science Foundation of China[52076034] ; National Key R&D Program of China[2019YFD1100603] ; National Key Research and Development Program Strategic Key Special Subject of International Science and Technology Innovation Cooperation[2018YFE0206600] ; CAS Key Laboratory of Renewable Energy[Y907k71001] ; China Postdoctoral Science Foundation[2018M631899]
WOS研究方向	Chemistry
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000592834400035
资助机构	National Natural Science Foundation of China ; National Key R&D Program of China ; National Key Research and Development Program Strategic Key Special Subject of International Science and Technology Innovation Cooperation ; CAS Key Laboratory of Renewable Energy ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32516]
专题	中国科学院广州能源研究所
通讯作者	Sun, Yong
作者单位	1.Key Lab Agr Renewable Resources Utilizat Technol, Harbin 150030, Peoples R China 2.Northeast Agr Univ, Coll Engn, Harbin 150030, Peoples R China 3.Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Liu, Zhiyuan,Sun, Yong,Xu, Xinrui,et al. Adsorption of Hg(II) in an Aqueous Solution by Activated Carbon Prepared from Rice Husk Using KOH Activation[J]. ACS OMEGA,2020,5(45):29231-29242.
APA	Liu, Zhiyuan,Sun, Yong,Xu, Xinrui,Qu, Jingbo,&Qu, Bin.(2020).Adsorption of Hg(II) in an Aqueous Solution by Activated Carbon Prepared from Rice Husk Using KOH Activation.ACS OMEGA,5(45),29231-29242.
MLA	Liu, Zhiyuan,et al."Adsorption of Hg(II) in an Aqueous Solution by Activated Carbon Prepared from Rice Husk Using KOH Activation".ACS OMEGA 5.45(2020):29231-29242.