Molecular-Scale Study of Salicylate Adsorption and Competition with Catechol at Goethite/Aqueous Solution Interface

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Molecular-Scale Study of Salicylate Adsorption and Competition with Catechol at Goethite/Aqueous Solution Interface
	Yang, Yanli ; Duan, Jinming ; Jing, Chuanyong
刊名	JOURNAL OF PHYSICAL CHEMISTRY C
	2013
卷号	117 期号:20 页码:10597-10606
通讯作者	Jing, CY
中文摘要	Insights into the adsorption mechanisms of salicylate on goethite, especially its competition with catechol, can further our understanding of the fate and transport of natural organic matter analogues in the environment. The adsorption process was investigated using multiple complementary techniques including batch adsorption experiments, flow-cell ATR-FTIR measurement, and DFT calculations. The macroscopic results show that increasing pH and ionic strength had an adverse effect on salicylate adsorption because of electrostatic interactions. Salicylate formed an inner-sphere complex in a mononuclear monodentate configuration with carboxylate bound to the iron atom on goethite surface within pH 5-9. The electrostatic outer-sphere complex could be observed under high salicylate concentrations and low ionic strength. In the competitive adsorption of salicylate and catechol, their individual interfacial complexes coexisted and competed with each other. The surface salicylate could be replaced by catechol during adsorption under neutral and basic pH conditions. Accordingly, the macroscopic adsorption capacity of salicylate was depressed in the binary system.
收录类别	SCI
WOS记录号	WOS:000319649400041
公开日期	2014-06-06
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/7495]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Yang, Yanli,Duan, Jinming,Jing, Chuanyong. Molecular-Scale Study of Salicylate Adsorption and Competition with Catechol at Goethite/Aqueous Solution Interface[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2013,117(20):10597-10606.
APA	Yang, Yanli,Duan, Jinming,&Jing, Chuanyong.(2013).Molecular-Scale Study of Salicylate Adsorption and Competition with Catechol at Goethite/Aqueous Solution Interface.JOURNAL OF PHYSICAL CHEMISTRY C,117(20),10597-10606.
MLA	Yang, Yanli,et al."Molecular-Scale Study of Salicylate Adsorption and Competition with Catechol at Goethite/Aqueous Solution Interface".JOURNAL OF PHYSICAL CHEMISTRY C 117.20(2013):10597-10606.