期刊
POWDER TECHNOLOGY
卷 331, 期 -, 页码 162-170出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.powtec.2018.03.005
关键词
Bovine bone; Hierarchical porous carbon; Antibiotic removal; Self-template; Alkali-activation
资金
- National Natural Science Foundation of China [51608226, U1510126, 21777062, 21676127, U1407123]
- Natural Science Foundation of Jiangsu Province [BK20170532, BK20160501, BK20160569, BK20151350]
- China Postdoctoral Science Foundation [2017M620194]
- Jiangsu Planned Projects for Postdoctoral Research Funds [1701023A]
- Natural Science Foundation Jiangsu Higher Education Institutions [17KJB430011]
Here, we reported the preparation of hierarchically porous carbons with ultrahigh surface specific area using bovine bone (a renewable organic-organic hybrid biomass, contains inorganic hydroxylapatite and organic collagen protein) as starting material via a simple self-template carbonization and in-situ alkali-activation route. Adjustment of activation temperature and activator dosage could easily controlled pore structure. The macromeso-micro hierarchical porous carbon produced at 850 degrees C with the mass ratio of 1:3 for bovine bone-derived carbon: alkali exhibited a very high BET surface area of 3231.8 m(2)/g and total pore volume of 1.976 cm(3) g(-1), showing the excellent adsorption capacities and fast removal rates for sulfamethazine (SMZ) and chloramphenicol (CAP) antibiotics. The maximum monolayer adsorption capacities were 1194 mg g(-1) for SMZ and 1240 mg g(-1) for CAP at 318 K, respectively. Thermodynamic analysis confirmed that the adsorption process was spontaneous and physisorption adsorption was dominate. The advantages of thermal and chemical stability, great absorbability, quick binding and easy preparation provided the possibility for various wastewater treatment. (C) 2018 Elsevier B.V. All rights reserved.
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