抄録
Million tons of coal fly ash each year are generated after thermal energy production worldwide. Most of by-product fly ash after coal burning is disposed by landfilling. The management of this waste material becomes an environmental concern. In order to eliminate environmental problems and achieve economic benefits, recycling of fly ash waste into usable and valuable material is significant. Coal fly ash primarily contains alumino-silicate component which can be used as a source to form geopolymer synthesized by reacting with an alkali activator through geopolymerization reaction. Moreover, geopolymer has been used for many applications and also used as effective adsorbents for various heavy metals and organic compounds.
Geopolymerization induced to form aluminosilicate framework structures onto fly ash. The conventional geopolymer products have closed cell solid structure, low water permeability, and low porosity, limitting the adsorption ability. In term of removal applications of toxic compounds, a high porosity and large surface area of adsorbent material is very important. This study aims to report the obtained porous material which synthesized through geopolymerization of coal fly ash and effects of additional calcination treatment on the fly ash-based porous geopolymer.
