标题：Characterization and ciprofloxacin adsorption properties of activated carbons prepared from biomass wastes by H3PO4 activation
作者：Sun, Yuanyuan; Li, Hong; Li, Guangci; Gao, Baoyu; Yue, Qinyan; Li, Xuebing
作者机构：[Sun, Yuanyuan; Li, Hong; Li, Guangci; Gao, Baoyu; Li, Xuebing] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 更多
会议名称：International conference on Solid Waste - Knowledge Transfer for Sustainable Resource Management (ICSWHK)
会议日期：MAY 19-23, 2015
关键词：Biomass waste; Activated carbons; Ciprofloxacin removal; H3PO4; activation
摘要：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 (1252 m(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 244 mg/g for ALAC and 400 mg/L for PPAC. Kinetics studies showed intra-particle diffusion was not the unique rate-controlling step. Boundary layer resistance existed between adsorbent and adsorbate. (C) 2016 Elsevier Ltd. All rights reserved.