Removal of copper ions from aqueous solution by adlai shell (Coix lacryma-jobi L.) adsorbents

Chia Nan University of Pharmacy & Science Institutional Repository > 環境永續暨休閒學院 > 環境資源管理系(所) > 期刊論文 > Item 310902800/29670

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://ir.cnu.edu.tw/handle/310902800/29670

標題:	Removal of copper ions from aqueous solution by adlai shell (Coix lacryma-jobi L.) adsorbents
作者:	de Luna, Mark Daniel G. Flores, Edgar D. Cenia, Marie Chela B. Lu, Ming-Chun
貢獻者:	環境資源管理系
關鍵字:	Adlai shell Adsorption Heavy metal wastewater Kinetics Isotherm
日期:	2015-09
上傳時間:	2016-04-19 19:04:01 (UTC+8)
出版者:	Elsevier Sci Ltd
摘要:	Adlai shell (Coix lacryma-jobi L.) adsorbents (ASA) were used to remove copper ions from aqueous solutions under batch conditions. The effect of physical and chemical modification of ASA on Cu(II) removal was evaluated. Results showed that the high coefficients of determination for the pseudo-second order (R-2 > 0.9999) and for the intraparticle diffusion (R-2 > 0.9843) equations indicate that the rate-determining step is a combination of pore diffusion and chemisorption at low Cu(II) concentration and boundary layer, pore diffusion and chemisorption at high Cu(II) concentration. At 298 K and 100 mg L-1 Cu(II), the computed q(e) and k(2) values were 17.2 mg g(-1) and 0.012 g mg(-1) min(-1), respectively. The Freundlich model (R-2 > 0.9636) adequately describes the experimental data indicating heterogeneous adsorption. Overall, the results of the study demonstrate the potential of adlai shell adsorbents for the removal of heavy metals from aqueous solutions. (C) 2015 Elsevier Ltd. All rights reserved.
關聯:	Bioresource Technology, v.192, pp.841-844
显示于类别:	[環境資源管理系(所)] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html		0Kb	HTML	1414	检视/开启

在CNU IR中所有的数据项都受到原著作权保护.

TAIR相关文章