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The Interaction of Methylene Blue Dye with Calcium–Silicate–Hydrate
Author(s) -
Beaudoin James J.,
Patarachao Bussaraporn,
Raki Laila,
Alizadeh Rouhollah
Publication year - 2009
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2008.02839.x
Subject(s) - methylene blue , calcium silicate hydrate , hydrate , distilled water , silicate , calcium silicate , chemistry , polymerization , nuclear chemistry , methylene , materials science , nanostructure , chemical engineering , crystallography , mineralogy , organic chemistry , chromatography , nanotechnology , polymer , metallurgy , cement , composite material , photocatalysis , engineering , catalysis
The interaction of methylene blue (MB) dye solution with various calcium–silicate–hydrate (C–S–H) preparations (C/S ratio=0.60–1.80) was investigated. Experiments were also performed by treating the C–S–H in lime‐saturated water and distilled water. The effects of MB on the X‐ray basal spacing and the degree of polymerization were determined using low‐angle X‐ray diffraction (XRD) and 29 Si MAS NMR spectroscopy. An interaction mechanism for C–S–H–MB using a “bridging” model for the C–S–H nanostructure is proposed. The model is consistent with the XRD and 29 Si MAS NMR results.