Adsorption of Cu2+ to biomass ash and its modified product

doi:10.2166/wst.2018.095

QIBEBT-IR

	Adsorption of Cu2+ to biomass ash and its modified product
	Xu, Lei 1,2,3; Cui, Hongbiao 4; Zheng, Xuebo 5; Liang, Jiani 1; Xing, Xiangyu 6; Yao, Lunguang 3; Chen, Zhaojin 3; Zhou, Jing 1,7
	2018-04-01
发表期刊	WATER SCIENCE AND TECHNOLOGY
ISSN	0273-1223
页码	115-125
摘要	Ash produced by biomass power plants has great potential for the removal of heavy metal ions from aqueous solution. The pollution of toxic heavy metals to water is a worldwide environmental problem. Discharges containing copper, in particular, are strictly controlled because the excessive copper can cause serious harm to the environment and human health. This work aims to investigate the adsorption characteristics of copper ions in aqueous solution by biomass ash and the modified products, and to evaluate their potential application in water pollution control. The biomass ash was modified with a mesoporous siliceous material and functionalized with 3-aminopropyltriethoxysilane. The surface properties of the biomass ash and the new matrix were studied to evaluate their adsorption property for Cu2+ ions at different pHs, initial metal concentrations and the thermodynamic and kinetic were studied. The chemical and morphological properties of this modified material are analyzed; the specific surface area of the modified biomass ash was nine times that of the initial ash. Both of the two materials showed a strong affinity for Cu2+, and the Langmuir model could best represent the adsorption characteristics of Cu2+ on the two kinds of materials. The adsorption capacity of copper on the material increased with the increase of pH and pH 6 was the optimum pH. Thermodynamic analysis results showed that the adsorption of Cu2+ was spontaneous and endothermic in nature. The adsorptions of Cu2+ onto the modified biomass ash followed pseudo-second-order kinetics.
关键词	adsorption biomass ash copper modification nanomaterials
DOI	10.2166/wst.2018.095
关键词[WOS]	FUNCTIONALIZED MESOPOROUS SILICA ; HEAVY-METAL IONS ; COAL FLY-ASH ; AQUEOUS-SOLUTIONS ; ACTIVATED CARBON ; NATURAL ZEOLITE ; REACTIVE DYES ; WASTE-WATER ; REMOVAL ; COPPER
语种	英语
资助项目	Chinese Academy of Agricultural Sciences[2015BAD05B01] ; National Natural Science Foundation of China[41571461] ; National Natural Science Foundation of China[41601340] ; Scientific Research and Service Platform fund of Henan province[2016151] ; fund of the scientific and technological innovation team of water ecological security for water source region of the mid-line of the south-to-north diversion project, Henan province[17454]
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
项目资助者	Chinese Academy of Agricultural Sciences ; National Natural Science Foundation of China ; Scientific Research and Service Platform fund of Henan province ; fund of the scientific and technological innovation team of water ecological security for water source region of the mid-line of the south-to-north diversion project, Henan province
WOS类目	Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS记录号	WOS:000435664600013
出版者	IWA PUBLISHING
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/12505
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Zhou, Jing
作者单位	1.Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China 2.Nanyang Normal Univ, Coll Environm Sci & Tourism, Nanyang 473061, Peoples R China 3.Nanyang Normal Univ, Collaborat Innovat Ctr Water Secur Water Source R, South To North Divers Project Henan Prov, Nanyang 473061, Peoples R China 4.Anhui Univ Sci & Technol, Sch Earth & Environm, Huainan 232001, Peoples R China 5.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Shandong Ind Engn Lab Biogas Prod & Utilizat, Qingdao 266101, Peoples R China 6.Nanyang Normal Univ, Coll Nonmajor Foreign Language Teaching, Nanyang 473061, Peoples R China 7.Jiangxi Acad Sci, Jiangxi Engn Res Ctr Ecoremediat Heavy Met Pollut, Nanchang 330096, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Xu, Lei,Cui, Hongbiao,Zheng, Xuebo,et al. Adsorption of Cu2+ to biomass ash and its modified product[J]. WATER SCIENCE AND TECHNOLOGY,2018:115-125.
APA	Xu, Lei.,Cui, Hongbiao.,Zheng, Xuebo.,Liang, Jiani.,Xing, Xiangyu.,...&Zhou, Jing.(2018).Adsorption of Cu2+ to biomass ash and its modified product.WATER SCIENCE AND TECHNOLOGY,115-125.
MLA	Xu, Lei,et al."Adsorption of Cu2+ to biomass ash and its modified product".WATER SCIENCE AND TECHNOLOGY (2018):115-125.