Surface Modification of Fly Ash by Thermal Activation: A DR/FTIR Study
Stuti Katara, Sakshi Kabra, Anita Sharma, Renu Hada, Ashu Rani
International Research Journal of Pure and Applied Chemistry · pp. 299–307 · Published 24 Jul 2013
10.9734/IRJPAC/2013/4287Abstract
To acquire a deeper understanding of surface chemistry of fly ash along with thermal activation, the states of mineral phases, water and –OH groups on silica are studied in fly ash at different calcination temperatures by DR/FTIR spectroscopic technique. DR/FTIR spectroscopy allows differentiation of various types of bonds in a material on a molecular level. The spectroscopic results are also supported by XRF, XRD and SEM analysis. Studied fly ash was collected from Jamshedpur Thermal Power Station as an extremely fine ash, formed from the inorganic components of the coal, mainly silica and alumina which remain after combustion of the carbonaceous part of the coal. Distinguish changes were observed in fly ash IR bands regarding absorbed water, -OH group and Si-O-Si group with thermal activation. This investigation reveals that as the temperature increases, the physically adsorbed water begins to remove first, then silanol groups on surface is dehydrated. Increased temperature causes formation of different crystalline phases like quartz, mullite and hematite etc. and increased the crystallinity of the calcined samples.
References (25)
- 1 Alkali-activated fly ashes [DOI]
- 2 The calcium silicate hydrates [DOI]
- 3 Time-course gait analysis of hemiparkinsonian rats following 6-hydroxydopamine lesion [DOI]
- 4 Fly ash characterization by SEM–EDS [DOI]
- 5 The characterisation of source materials in fly ash-based geopolymers [DOI]
- 6 Vibrational and Electronic Energy Levels of Polyatomic Transient Molecules. Supplement B [DOI]
- 7 XPS and FT-IR investigation of silicate polymers [DOI]
- 8 Effect of fly ash preliminary calcination on the properties of geopolymer [DOI]
- 9 Investigation of the states of water and OH groups on the surface of silica [DOI]
- 10 Synthesis of highly siliceous ZSM-5 zeolite using silica from rice husk ash [DOI]
- 11 FTIR Spectroscopic Studies of the Stabilities and Reactivities of Hydrogen-Terminated Surfaces of Silicon Nanowires [DOI]
- 12 The effect of mechanically and chemically activated fly ashes on mortar properties [DOI]
- 13 Influence of phosphonation and phosphation on surface acid–base and morphological properties of CaO as investigated by in situ FTIR spectroscopy and electron microscopy [DOI]
- 14 Synthesis of a nano-crystalline solid acid catalyst from fly ash and its catalytic performance [DOI]
- 15 Preparation of sulphoaluminate belite cement from fly ash [DOI]
- 16 Fourier-transform infrared spectroscopic characterization of naturally occurring glassy fulgurites [DOI]
- 17 Utilization of fly ash [DOI]
- 18 Physical cleaning of high carbon fly ash [DOI]
- 19 Variation in fly ash properties with milling and acid leaching [DOI]
- 20 Synthesis of zeolite Li-ABW from fly ash by fusion method [DOI]
- 21 Modification in Properties of Fly Ash through Mechanical and Chemical Activation [DOI]
- 22 Highly efficient self-condensation of benzaldehyde to benzyl benzoate over KF-loaded alumina [DOI]
- 23 MgO Enriched Coal Fly Ash as Highly Active Heterogeneous Base Catalyst for Claisen-Schmidt Condensation Reaction [DOI]
- 24 Preparation and properties of potassium aluminosilicate prepared from the waste solution of selectively leached calcined kaolinite [DOI]
- 25 High Temperature Aerogels in the Al2O3-SiO2 System
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