Abstract
Bagasse fly ash (BFA), a solid waste from sugar cane industries, contains significant amount of carbon as well as silica. The coarse particles with high carbon content can be separated and further activated to produce BFA-based activated carbon, while silica content can be extracted from fine BFA particles to be used for zeolite crystallization. The zeolite crystal may be grown on a suitable solid surface to create a zeolitic composite. In this study, silicate extract from fine BFA particles were combined with pretreated carbon rich coarse BFA particles in a hydrothermal crystallization process to produce particular carbon–zeolite composites. The carbon rich particles could be subjected to any necessary activation or surface treatment before being used in the composite preparation. Meanwhile, a simple method based on thermogravimetry is proposed to evaluate the zeolite particles distribution on the carbon surface. Furthermore, the composite ability for treating mixed organic and inorganic pollutants in aqueous solution has been investigated.
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Acknowledgments
A profound gratitude is dedicated to Prof. Hirofumi Hinode and Dr. Chris Salim at IDE Department Tokyo Institute of Technology, for their guidance and supports during the experiments and writing of this manuscript.
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Purnomo, C.W. Utilization of bagasse fly ash for carbon–zeolite composite preparation. J Porous Mater 20, 1305–1313 (2013). https://doi.org/10.1007/s10934-013-9715-1
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DOI: https://doi.org/10.1007/s10934-013-9715-1