NDLI: Al$_{2}$O$_{3}$-based pigments synthesized by a new proteic sol

Content Provider	SpringerLink
Author	Silva, Ronaldo S. Macedo, Zélia S.
Copyright Year	2010
Abstract	Alumina-based pigments were synthesized by the proteic sol–gel method. In this method, coconut water is employed as polymeric agent instead of the conventional alkoxide precursors. To this study, three common chromophore metallic ions (Mn$^{3+}$, Co$^{3+}$, and Cr$^{3+}$) were chosen in order to verify the method efficiency. Differential thermal analysis (DTA), thermogravimetry (TG), and XRD techniques were used to characterize the synthesis process. The colorimetric characterization of the produced pigments was done according to the CIE-Lab* 1976 norm which is recommended by the CIE (International Commission on Illumination). The synthesized pigments presented intense and uniform colors in accordance to the literature results for each chromophore ion. The produced pigments also presented agglomerated with an average grain size of 180 nm when calcined at 800 °C.
Starting Page	587
Ending Page	590
Page Count	4
File Format	PDF
ISSN	13886150
Journal	Journal of thermal analysis
Volume Number	103
Issue Number	2
e-ISSN	15728943
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-09-21
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Proteic sol–gel Coconut water Alumina Inorganic pigment Measurement Science and Instrumentation Inorganic Chemistry Polymer Sciences Analytical Chemistry Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Physical and Theoretical Chemistry

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