Interaction mechanisms of antibiotic sulfamethoxazole with various   graphene-based materials and multiwall carbon nanotubes and the effect   of humic acid in water

doi:10.1016/j.carbon.2016.12.080

CORC > 北京大学 > 城市与环境学院

	Interaction mechanisms of antibiotic sulfamethoxazole with various graphene-based materials and multiwall carbon nanotubes and the effect of humic acid in water
	Wang, Fei ; Ma, Shuai ; Si, Yang ; Dong, Lifu ; Wang, Xilong ; Yao, Jun ; Chen, Huilun ; Yi, Zhengji ; Yao, Wenchuo ; Xing, Baoshan
刊名	CARBON
	2017
关键词	POLYCYCLIC AROMATIC-HYDROCARBONS DIALKYL PHTHALATE-ESTERS NITROGEN-DOPED GRAPHENE BISPHENOL-A AQUEOUS-SOLUTIONS ORGANIC-MATTER UNITED-STATES ADSORPTION OXIDE SORPTION
DOI	10.1016/j.carbon.2016.12.080
英文摘要	We studied the interaction mechanisms between carbonaceous nanomaterials (CNMs) and sulfamethoxazole (SMX) to elucidate their adsorption behaviors. Three graphene-based materials, reduced graphene oxide (rGO), graphene oxide (GO), and graphene nanoplatelet pastes (GNP), and five multiwalled carbon nanotubes (MWCNTs), MWCNT10, MWCNT15, MWCNT15-OH, MWCNT15-COOH, and N-doped MWCNTs, were used as sorbents. Oxygen-containing functional groups and graphene wrinkling suppressed SMX adsorption on GO and GNPs due to fewer Csp(2) ring sites for pi-pi stacking and fewer accessible flat surface adsorption sites, respectively. Ring current-induced H-1 NMR upfield chemical shifts increased as the pi-donor concentration increased, as well as pi-donor strength of polycyclic aromatic hydrocarbons (PAHs) (pyrene > phenanthrene > naphthalene) as model graphene compounds, suggesting that pi-pi interaction strength of SMX with PAHs associated with pi-donor strength. Moreover, H-1 NMR results further verified that carboxylic and hydroxyl groups in PAHs (9-phenanthrol and 3-phenanthrenecarboxylic acid) weakened the complexation between SMX and the graphitic surface. Additionally, the morphologies of rGO and MWCNT10 were observed using AFM, and transformed from being linear to scattered as the loading dose of the humic acid increased. Our results are useful to understand the distinct interaction mechanisms and subsequent adsorption behaviors resulting from various carbon nanomaterials with SMX in water. (C) 2016 Elsevier Ltd. All rights reserved.; Key project from National Science Foundation of China [41430106]; National Natural Science Foundation of China [41473096, 41273092, U1402234, 41273131, 41629101]; Public welfare project of Chinese Ministry of Environmental Protection [201409042]; SCI(E); ARTICLE; 671-678; 114
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474431]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Wang, Fei,Ma, Shuai,Si, Yang,et al. Interaction mechanisms of antibiotic sulfamethoxazole with various graphene-based materials and multiwall carbon nanotubes and the effect of humic acid in water[J]. CARBON,2017.
APA	Wang, Fei.,Ma, Shuai.,Si, Yang.,Dong, Lifu.,Wang, Xilong.,...&Xing, Baoshan.(2017).Interaction mechanisms of antibiotic sulfamethoxazole with various graphene-based materials and multiwall carbon nanotubes and the effect of humic acid in water.CARBON.
MLA	Wang, Fei,et al."Interaction mechanisms of antibiotic sulfamethoxazole with various graphene-based materials and multiwall carbon nanotubes and the effect of humic acid in water".CARBON (2017).