title: Adsorption of quinolone antibiotics in spherical mesoporous silica: Effects of the retained template and its alkyl chain length.
abstract: In this study, mesoporous silica (meso-silica) MCM-41 and those with the templates retained were synthesized and characterized. Adsorption capacities of the synthesized materials towards typical quinolone antibiotic pollutants, enrofloxacin and norfloxacin as representative, were investigated, and effects of the alkyl chain length of the templates on the adsorption capacity were evaluated. The results of this study indicated that the retained templates enhanced the adsorption capacities (Qmax) of the meso-silica MCM-41 toward hydrophobic enrofloxacin, but had an inhibitory effect on that towards hydrophilic norfloxacin, which were attributed to the hydrophobic inter-environment created by the long alkyl chains of the retained templates. Importantly, the adsorption capacity increased with the increase of the alkyl chain length of the retained templates.
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: zhjliang@outlook.com.
authors.forename: Zhijie
authors.initials: Z
authors.lastname: Liang
authors.affiliation: Department of National Defense Architecture Planning and Environmental Engineering, Logistical Engineering University, Chongqing 401311, China. Electronic address: hit_zzw@163.com.
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Zhaob
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: tianyi0328@163.com.
authors.forename: Tianyi
authors.initials: T
authors.lastname: Sun
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: SWX@hit.edu.cn.
authors.forename: Wenxin
authors.initials: W
authors.lastname: Shi
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China. Electronic address: cuifuyi@hit.edu.cn.
authors.forename: Fuyi
authors.initials: F
authors.lastname: Cui
mesh_terms: D000327:Adsorption; D000900:Anti-Bacterial Agents / Q000737:chemistry*; D000077422:Enrofloxacin; D024841:Fluoroquinolones / Q000737:chemistry*; D057927:Hydrophobic and Hydrophilic Interactions; D009643:Norfloxacin / Q000737:chemistry*; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014876:Water Pollution / Q000517:prevention & control
chemical_list: D000900:Anti-Bacterial Agents; D024841:Fluoroquinolones; C509968:MCM-41; D014874:Water Pollutants, Chemical; D000077422:Enrofloxacin; D012822:Silicon Dioxide; D009643:Norfloxacin
keywords: Adsorption; Meso-silica materials; Octanol/water partition coefficient; PPCPs; Template effect