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- Title
Effect of microwave regeneration on the textural network, surface chemistry and adsorptive property of the agricultural waste based activated carbons.
- Authors
Foo, K. Y.
- Abstract
This paper describes laboratory-scale experiments for examining the impact of microwave-irradiation on the regeneration of agricultural-waste based activated carbons loaded with methylene blue (MB). The efficacy of the regeneration study was analyzed by determining the carbon yield and amount of MB adsorbed in successive adsorption-regeneration cycles. The virgin characteristics were examined by pore-structural-analysis, nitrogen adsorption-desorption curve, surface acidity/basicity and zeta-potential-measurement. Microwave heating preserved the porous structure of the regenerated activated carbons efficiently to restore the original activate sites and adsorption capacity, with the specific surface areas (SBET) of 605.88-711.74 m2/g and monolayer adsorption capacities for MB of 199.74-231.68 mg/g. Besides, the regeneration time was considerably shortened over conventional regeneration method, which represents a dramatic improvement in the adsorption chemistry.
- Subjects
WASTE gases; ACTIVATED carbon; NANOPARTICLES; SEWAGE sludge; AQUEOUS solutions
- Publication
Process Safety & Environmental Protection: Transactions of the Institution of Chemical Engineers Part B, 2018, Vol 116, Issue Part B, p461
- ISSN
0957-5820
- Publication type
Article
- DOI
10.1016/j.psep.2018.01.022