| Title | Interaction mechanisms of antibiotic sulfamethoxazole with various graphene-based materials and multiwall carbon nanotubes and the effect of humic acid in water |
| Authors | Wang, Fei Ma, Shuai Si, Yang Dong, Lifu Wang, Xilong Yao, Jun Chen, Huilun Yi, Zhengji Yao, Wenchuo Xing, Baoshan |
| Affiliation | Univ Sci & Technol Beijing, Sch Energy & Environm Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China. Univ Sci & Technol Beijing, Beijing Key Lab Resource Oriented Treatment Ind P, 30 Xueyuan Rd, Beijing 100083, Peoples R China. ENS Cachan, CNRS UMR 8531, PPSM, 61 Av President Wilson, F-94230 Cachan, France. South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Sch Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China. Peking Univ, Coll Urban & Environm Sci, Lab Earth Surface Proc, Beijing 100871, Peoples R China. China Univ Geosci, Sch Water Resource & Environm Engn, Sinohungarian Joint Lab Environm Sci & Hlth, 29 Xueyuan Rd, Beijing 100083, Peoples R China. Univ Massachusetts, Stockbridge Sch Agr, Amherst, MA 01003 USA. Univ Sci & Technol Beijing, Sch Energy & Environm Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China. Yao, J (reprint author), Univ Sci & Technol Beijing, Beijing Key Lab Resource Oriented Treatment Ind P, 30 Xueyuan Rd, Beijing 100083, Peoples R China. Xing, BS (reprint author), Univ Massachusetts, Stockbridge Sch Agr, Amherst, MA 01003 USA. |
| Keywords | POLYCYCLIC AROMATIC-HYDROCARBONS DIALKYL PHTHALATE-ESTERS NITROGEN-DOPED GRAPHENE BISPHENOL-A AQUEOUS-SOLUTIONS ORGANIC-MATTER UNITED-STATES ADSORPTION OXIDE SORPTION |
| Issue Date | 2017 |
| Publisher | CARBON |
| Citation | CARBON.2017,114,671-678. |
| Abstract | 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. |
| URI | http://hdl.handle.net/20.500.11897/474431 |
| ISSN | 0008-6223 |
| DOI | 10.1016/j.carbon.2016.12.080 |
| Indexed | SCI(E) |
| Appears in Collections: | 城市与环境学院 地表过程分析与模拟教育部重点实验室 |
