Synthesis of FexZn1-xCr2O4 brown ceramic pigment by starch-assisted sol-gel process
Vol. 128 No. 1B (2019), Original Article
Vol. 128 No. 1B (2019)

Synthesis of FexZn1-xCr2O4 brown ceramic pigment by starch-assisted sol-gel process

Original Article
https://doi.org/10.26459/hueuni-jns.v128i1B.5245
Published 2019-06-06
Tran Ngo Tuyen
Chemistry Department, University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Nguyen Duc Vu Quyen
Chemistry Department, Hue University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
Tran Bao Lam
Nghia Ha Junior High School, Quang Ngai city, Vietnam
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Keywords

Brown pigments
spinel
sol-gel method

How to Cite

1.
Tuyen TN, Quyen NDV, Lam TB. Synthesis of FexZn1-xCr2O4 brown ceramic pigment by starch-assisted sol-gel process. hueuni-jns [Internet]. 2019Jun.6 [cited 2024Nov.23];128(1B):13-9. Available from: http://222.255.146.83/index.php/hujos-ns/article/view/5245
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Abstract

In the present paper, the ceramic pigments FexZn1-xCr2O4 (x = 0 ¸ 1) were synthesized with the starch-assisted sol-gel method. The resulting pigments were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and CIE L*a*b* color measurement. The results show that FexZn1-xCr2O4 pigments form at sintering temperature of 1100 OC for 60 minutes. The ACr2O4 spinel (A: Zn, Fe) and FeCrO3 perovskite phase with excellent crystallinity appears. The brown color intensity increases gradually with the increase of the number of substituted Fe2+ cations. The pigments meet industrial requirements in terms of physicochemical characteristics.

https://doi.org/10.26459/hueuni-jns.v128i1B.5245
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