DOI: 10.1016/j.marpolbul.2013.11.007
Scopus记录号: 2-s2.0-84892434726
论文题名: Influence of the pore structure and surface chemical properties of activated carbon on the adsorption of mercury from aqueous solutions
作者: Lu X. ; Jiang J. ; Sun K. ; Wang J. ; Zhang Y.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2014
卷: 78, 期: 2018-01-02 起始页码: 69
结束页码: 76
语种: 英语
英文关键词: Activated carbon
; Adsorption
; Adsorption mechanism
; Mercury
; Pore structure
; Surface functional groups
Scopus关键词: Absorption-desorption
; Acidic functional groups
; Adsorption capacities
; Adsorption mechanism
; Modified activated carbons
; Surface chemical properties
; Surface functional groups
; Thermodynamic parameter
; Activated carbon
; Chemical modification
; Chemical properties
; Chlorine compounds
; Fourier transform infrared spectroscopy
; Functional groups
; Mercury (metal)
; Pore structure
; Adsorption
; acidic functional group
; activated carbon
; carboxylic group
; functional group
; mercury chloride
; phenolic group
; unclassified drug
; activated carbon
; adsorption
; aqueous solution
; chemical property
; mercury (element)
; nitrogen
; thermodynamics
; absorption
; adsorption kinetics
; aqueous solution
; article
; Bothem method
; chemical analysis
; chemical model
; chemical modification
; chemical structure
; comparative study
; controlled study
; desorption
; enthalpy
; entropy
; infrared spectroscopy
; molecular mechanics
; nitrogen uptake
; pore structure
; structure activity relation
; surface chemical property
; surface property
; thermodynamics
; Activated carbon
; Adsorption
; Adsorption mechanism
; Mercury
; Pore structure
; Surface functional groups
; Adsorption
; Charcoal
; Mercury
; Models, Chemical
; Porosity
; Surface Properties
; Water Pollutants, Chemical
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: Reactivation and chemical modification were used to obtain modified activated carbons with different pore structure and surface chemical properties. The samples were characterized by nitrogen absorption-desorption, Fourier transform infrared spectroscopy and the Bothem method. Using mercury chloride as the target pollutant, the Hg2+ adsorption ability of samples was investigated. The results show that the Hg2+ adsorption capacity of samples increased significantly with increases in micropores and acidic functional groups and that the adsorption process was exothermic. Different models and thermodynamic parameters were evaluated to establish the mechanisms. It was concluded that the adsorption occurred through a monolayer mechanism by a two-speed process involving both rapid adsorption and slow adsorption. The adsorption rate was determined by chemical reaction. © 2013 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/85669
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Institute of Chemical Industry of Forest Products, CAF, Nanjing 210042, Jiangsu Province, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, Jiangsu Province, China; Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, Jiangsu Province, China; Key Lab. of Biomass Energy and Material, Nanjing 210042, Jiangsu Province, China
Recommended Citation:
Lu X.,Jiang J.,Sun K.,et al. Influence of the pore structure and surface chemical properties of activated carbon on the adsorption of mercury from aqueous solutions[J]. Marine Pollution Bulletin,2014-01-01,78(2018-01-02)