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Remediation/Treatment
Assisted activated carbon-microwave degradation of the sodium dodecyl benzene sulfonate by nano- or micro-Fe3O4 and comparison of their catalytic activity
Article first published online: 30 NOV 2011
DOI: 10.1002/ep.10627
Copyright © 2011 American Institute of Chemical Engineers
Additional Information
How to Cite
Zhang, Z., Xu, Y., Shen, M., Dionysiou, D. D., Wu, D., Chen, Z., Li, F., Liu, D. and Zhang, F. (2013), Assisted activated carbon-microwave degradation of the sodium dodecyl benzene sulfonate by nano- or micro-Fe3O4 and comparison of their catalytic activity. Environ. Prog. Sustainable Energy, 32: 181–186. doi: 10.1002/ep.10627
Publication History
- Issue published online: 13 APR 2013
- Article first published online: 30 NOV 2011
- Manuscript Accepted: 9 OCT 2011
- Manuscript Revised: 2 AUG 2011
- Manuscript Received: 12 APR 2011
Funded by
- Science Research
- Liaoning Province Education Department of China. Grant Number: L2010156
- “211” Project of Liaoning University and Startup Foundation
- Doctors of Liaoning University of China
Keywords:
- activated carbon;
- degradation;
- microwave;
- magnetic Fe3O4;
- nonmaterial;
- sodium dodecyl benzene sulfonate
An improved method of the integration of activated carbon-microwave (AC/MW) system with magnetic material such as nano- or micro-Fe3O4 is proposed. A series of experiments to study the Fe3O4 assisted AC/MW (Fe3O4/AC/MW) degradation of sodium dodecyl benzene sulfonate (SDBS), as a model organic contaminant, was performed. The catalytic activities of nano-Fe3O4/AC and micro-Fe3O4/AC under MW irradiation were also compared. Some influence factors like added amount of Fe3O4, MW irradiation time, initial SDBS concentration, solution acidity, and Fe3O4/AC dose on the degradation were assessed in detail. The results showed that the addition of Fe3O4 significantly promoted the AC/MW degradation and nano-Fe3O4/AC displayed higher catalytic activity under MW irradiation. By comparison, the nano-Fe3O4/AC/MW process exhibited many advantages including high degradation rate, short irradiation time, low cost, no residual intermediates, and no secondary pollution in application. Thus, it shows to be a promising technology for the destruction of organic contaminants in wastewater treatment applications. © 2011 American Institute of Chemical Engineers Environ Prog, 32: 181-186, 2013