Adsorption characteristics of 1,2,4-trichlorobenzene, 2,4,6-trichlorophenol, 2-naphthol and naphthalene on graphene and graphene oxide

doi:10.1016/j.carbon.2012.08.024

	Adsorption characteristics of 1,2,4-trichlorobenzene, 2,4,6-trichlorophenol, 2-naphthol and naphthalene on graphene and graphene oxide
	Pei, Zhiguo 1; Li, Lingyun 2; Sun, Lixiang 3; Zhang, Shuzhen 1; Shan, Xiao-quan 1; Yang, Shuang 1; Wen, Bei 1
刊名	CARBON
	2013
卷号	51 页码:156-163
ISSN号	0008-6223
DOI	10.1016/j.carbon.2012.08.024
通讯作者	Pei, Zhiguo
英文摘要	Adsorption of 1,2,4-trichlorobenzene (TCB), 2,4,6-trichlorophenol (TCP), 2-naphthol and naphthalene (NAPH) on graphene (G) and graphene oxide (GO) was investigated using a batch equilibration method and micro-Fourier transform infrared spectroscopy. All adsorption isotherms of four aromatics on G and GO were nonlinear, indicating that except for hydrophobic interaction, some specific interactions were involved in adsorption. For G, four aromatics had similar adsorption capacity at pH 5.0 in despite of their different chemical properties. A series of pH-dependent experimental results showed that 2-naphthol had higher adsorption capacity on G at alkaline pH than that at acidic pH. Theoretical calculation ascribed this to higher pi-electron density of anionic 2-naphthol than that of neutral 2-naphthol, which facilitated the pi-pi interaction formation with G. For GO, the adsorption affinity of four aromatics increased in the order: NAPH < TCB < TCP < 2-naphthol. FTIR results revealed that TCB, TCP and 2-naphthol were adsorbed on G mainly via pi-pi interaction. In contrast, high adsorption of TCP and 2-naphthol on GO was attributed to the formation of H-bonding between hydroxyl groups of TCP and 2-naphthol and O-containing functional groups on GO. (C) 2012 Elsevier Ltd. All rights reserved.
学科主题	Chemistry, Physical ; Materials Science, Multidisciplinary ; CHEMISTRY, PHYSICAL ; MATERIALS SCIENCE, MULTIDISCIPLINARY
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000311005300018
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/101078]
专题	蔬菜花卉研究所_质量安全与检测技术研究室
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 2.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Minist Agr, Supervis & Testing Ctr Vegetable Qual, Beijing 100193, Peoples R China 3.Ludong Univ, Coll Chem & Mat Sci, Yantai 264025, Peoples R China
推荐引用方式 GB/T 7714	Pei, Zhiguo,Li, Lingyun,Sun, Lixiang,et al. Adsorption characteristics of 1,2,4-trichlorobenzene, 2,4,6-trichlorophenol, 2-naphthol and naphthalene on graphene and graphene oxide[J]. CARBON,2013,51:156-163.
APA	Pei, Zhiguo.,Li, Lingyun.,Sun, Lixiang.,Zhang, Shuzhen.,Shan, Xiao-quan.,...&Wen, Bei.(2013).Adsorption characteristics of 1,2,4-trichlorobenzene, 2,4,6-trichlorophenol, 2-naphthol and naphthalene on graphene and graphene oxide.CARBON,51,156-163.
MLA	Pei, Zhiguo,et al."Adsorption characteristics of 1,2,4-trichlorobenzene, 2,4,6-trichlorophenol, 2-naphthol and naphthalene on graphene and graphene oxide".CARBON 51(2013):156-163.