Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/41202
Title: One pot non-emulsion based hydrothermal synthesis of urchin-shaped hydroxy sodalite using waste coal fly ash
Authors: Das, Rituparna
Aich, Subhajit
Naskar, Milan Kanti
Keywords: Hydrothermal synthesis;Aluminosilicates;Sodalite;Hydroxy sodalite;Fly ash;Coal fly ash;Crystallization
Issue Date: Apr-2017
Publisher: NISCAIR-CSIR, India
Abstract: Urchin-shaped hydroxy sodalite particles have been synthesized by one pot non-emulsion based hydrothermal conversion of coal fly ash at 100 °C for 96 h in the absence of any surfactants. Crystallization behavior of the particles has been studied by X-ray diffraction, and the characteristic vibration bands of hydroxy sodalite were confirmed by FTIR spectroscopy. BET surface area of the particles are found to be 193, 197, 82 and 44 m2 g-1 for the reaction time of 24 h, 48 h, 72 h and 96 h, respectively. FESEM images revealed that the thread-ball-like particles are converted into urchin-shaped hydroxy sodalite with increasing reaction time from 24 h to 96 h at 100 °C. The elemental analysis of the product studied by EDX indicates the Si/Al and Na/Al ratios of 1.28 and 1.03, respectively which is close to the stoichiometric composition of hydroxy sodalite.
Page(s): 394-398
URI: http://nopr.niscair.res.in/handle/123456789/41202
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.56A(04) [April 2017]

Files in This Item:
File Description SizeFormat 
IJCA 56A(4) 394-398.pdfMain Article413.52 kBAdobe PDFView/Open
IJCA 56A(4) 394-398_Suppl Data.pdfSupplementary Data117.65 kBAdobe PDFView/Open


Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.