期刊
ADVANCED POWDER TECHNOLOGY
卷 28, 期 7, 页码 1769-1779出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apt.2017.04.018
关键词
Carbon-based sorbent; Organic micropollutants; MOF; Nanomaterials
资金
- National Nature Science Fund [51402146, 51238002, 51368045]
- National Science Fund for Excellent Young Scholars [51422807]
- National Natural Science Found [20142BAB213018]
- Science and Technology Planning Project of Jiangxi province [20151BBG70019]
- Jiangxi Province
Magnetic porous carbon-based sorbent (MPCS) with core-shell structure was prepared from the pyrolysis of Fe-III-modified MOF-5. The component, structure and surface properties of the as-obtained sorbent were investigated by Raman spectroscopy, X-ray diffraction, thermogravimetric analysis, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. Sorption behaviors of five organic micropollutants (OMPs), such as atrazine, carbamazepine, bisphenol A, norfloxacin and 4-nitrophenol, onto the magnetic porous MPCS were studied in a batch system. The adsorption capacities of the five OMPs onto MPCS followed the order of 4-nitrophenol > norfloxacin > bisphenol A > carbamazepine > atrazine. All isotherms were fitted well by the Dubinin-Ashtakhov (DA) model, and the approximate site energy distributions were acquired. The possible adsorption mechanisms of the five OMPs onto as-prepared MPCS were discussed in detail. This study will aid in further understanding of interactions between the OMPs and MOF-derived carbon-based materials. (C) 2017 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
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