Magnetically Recyclable Loofah Biochar by KMnO4 Modification for Adsorption of Cu(II) from Aqueous Solutions

doi:10.1021/acsomega.1c07163

GIEC OpenIR

	Magnetically Recyclable Loofah Biochar by KMnO4 Modification for Adsorption of Cu(II) from Aqueous Solutions
	Zhao, Fengxiao 1,2,3,4; Shan, Rui 1,2,3; Gu, Jing 1,2,3; Zhang, Yuyuan 5; Yuan, Haoran1,2,3 ; Chen, Yong1,2,3
	2022-03-15
发表期刊	ACS OMEGA
ISSN	2470-1343
卷号	7 期号:10 页码:8844-8853
通讯作者	Yuan, Haoran(yuanhr@ms.giec.ac.cn)
摘要	Novel KMnO4-modified loofah biochar loaded with nano-Fe2O3 (FMLB) was successfully synthesized for Cu(II) adsorption. Nitrogen adsorption method, scanning electron microscope, X-ray photoelectron spectroscopy, Fourier transform infrared spectrometer, and other characterization measurements were used to evaluate the physical and chemical properties of FMLB and nano-Fe2O3-loaded biochar (FLB). The results show that the adsorption behavior of Cu(II) can be best fitted by the Langmuir isotherm model and the pseudo-second-order (PSO) kinetic model, indicating that the surface of FMLB was composed of homogeneous adsorption, and chemical adsorption dominated the adsorption process under optimal reaction conditions. The adsorption capacity of FMLB is improved by 42.86% compared to FLB, and it remained over 75% after four cycles. The inner-sphere complexes with manganese oxide (MnOx) and oxygen-containing functional groups, as well as electrostatic interaction, physical adsorption, and ion exchange, play important roles in Cu(II) adsorption. The saturation magnetization of FMLB was 10.41 emu/g, ensuring that it can be easily separated from aqueous solutions. Therefore, magnetically recyclable biochar modified by KMnO4 is a feasible method for Cu(II) adsorption.
DOI	10.1021/acsomega.1c07163
关键词[WOS]	ACTIVATED CARBONS ; HEAVY-METALS ; REMOVAL ; MECHANISM ; COPPER ; IONS ; PYROLYSIS ; SORPTION ; CD(II) ; CR(VI)
收录类别	SCI
语种	英语
资助项目	Key-Area Research and Development Program of GuangDong Province[2019B110209003] ; National Natural Science Funds of China[51906045] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0101] ; Guangdong Basic and Applied Basic Research Foundation[2021B1515020068]
WOS研究方向	Chemistry
项目资助者	Key-Area Research and Development Program of GuangDong Province ; National Natural Science Funds of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Guangdong Basic and Applied Basic Research Foundation
WOS类目	Chemistry, Multidisciplinary
WOS记录号	WOS:000783601100062
出版者	AMER CHEMICAL SOC
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/36289
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.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Coll Mat Sci & Energy Engn, Foshan 528000, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Zhao, Fengxiao,Shan, Rui,Gu, Jing,et al. Magnetically Recyclable Loofah Biochar by KMnO4 Modification for Adsorption of Cu(II) from Aqueous Solutions[J]. ACS OMEGA,2022,7(10):8844-8853.
APA	Zhao, Fengxiao,Shan, Rui,Gu, Jing,Zhang, Yuyuan,Yuan, Haoran,&Chen, Yong.(2022).Magnetically Recyclable Loofah Biochar by KMnO4 Modification for Adsorption of Cu(II) from Aqueous Solutions.ACS OMEGA,7(10),8844-8853.
MLA	Zhao, Fengxiao,et al."Magnetically Recyclable Loofah Biochar by KMnO4 Modification for Adsorption of Cu(II) from Aqueous Solutions".ACS OMEGA 7.10(2022):8844-8853.