title: Characterization and ciprofloxacin adsorption properties of activated carbons prepared from biomass wastes by H3PO4 activation.
abstract: As biomass wastes, Arundo donax Linn and pomelo peel were used as precursors for activated carbons (ALAC and PPAC) preparation by phosphoric acid activation. The pore structure and surface acidic functional groups of both carbons were characterized by nitrogen adsorption/desorption experiment, NH3-temperature-programmed desorption (NH3-TPD) and Fourier transform infrared spectroscopy (FTIR). A batch of experiments was carried out to investigate the adsorption performances of ciprofloxacin under different conditions. Results showed that PPAC exhibited larger surface area (1252m(2)/g) and larger portion of mesoporous, while ALAC was typical of microporous materials. Results from NH3-TPD suggested that ALAC was characteristic of more acidic functional group than PPAC. The maximum monolayer adsorption capability was 244mg/g for ALAC and 400mg/L for PPAC. Kinetics studies showed intra-particle diffusion was not the unique rate-controlling step. Boundary layer resistance existed between adsorbent and adsorbate.
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
authors.forename: Hong
authors.initials: H
authors.lastname: Li
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
authors.forename: Guangci
authors.initials: G
authors.lastname: Li
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.
authors.forename: Baoyu
authors.initials: B
authors.lastname: Gao
authors.affiliation: School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.
authors.forename: Qinyan
authors.initials: Q
authors.lastname: Yue
authors.affiliation: Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China. Electronic address: lixb@qibebt.ac.cn.
authors.forename: Xuebing
authors.initials: X
authors.lastname: Li
mesh_terms: D000327:Adsorption; D018533:Biomass; D002606:Charcoal / Q000737:chemistry / Q000378:metabolism; D002939:Ciprofloxacin / Q000032:analysis / Q000737:chemistry / Q000378:metabolism; D010756:Phosphoric Acids / Q000737:chemistry*; D006109:Poaceae / Q000737:chemistry / Q000378:metabolism
chemical_list: D010756:Phosphoric Acids; D002606:Charcoal; D002939:Ciprofloxacin; C030242:phosphoric acid
keywords: Activated carbons; Biomass waste; Ciprofloxacin removal; H(3)PO(4) activation