Facile synthesis of high colour rendering BiVO4 yellow pigment via self-propagating combustion method

Abstract

High colour rendering bismuth vanadate (BiVO4) pigments were successfully synthesized by self-propagating combustion method at low temperature (200°C). Interestingly, the addition of citric acid as a fuel was beneficial to the formation of well-dispersed olive-like BiVO4 particles with the size around 730 nm. Furthermore, the as-prepared pigments also exhibited high purity m-BiVO4 phase and brilliant yellow hue (b* = 78.12), which is better than that of previously reported in literature and commercially available BiVO4 yellow pigments. Importantly, the pigments were applied in various substrates (PMMA, glass and ceramics), and showed excellent colour rendering, dispersion properties, thermal and chemical stability, indicating its potential application in the high-grade plastic, glass and ceramic-ware decoration.

Keywords

• pigment
• yellow
• bismuth vanadate
• self-propagating combustion method
• colouration mechanism