ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Synthesis and application of high-performance oil painting pigments

Yake Wang

School of Architectural Engineering, Xuchang Vocational Technical College, Xuchang, People’s Republic of China

E-mail: wangyk08082024@163.com

Received: 28 September 2024  Accepted: 28 March 2025

Abstract:

Lead chrome yellow is the most widely used yellow pigment, but it contains heavy metals lead and chromium to easily darken under sunlight. To avoid negative impacts, here, Ce_xBi_1-xVO₄ (x = 0, 0.05, 0.1, 0.15 and 0.2, respectively) pigments were prepared using liquid phase precipitation method from ammonium metavanadate (NH₄VO₃), bismuth nitrate pentahydrate (Bi(NO₃)₃·5H₂O) and cerium nitrate hexahydrate (Ce(NO₃)₂·6H₂O). Silica nanoparticles were used for strong weather resistance. The bright yellow Ce_xBi_1-xVO₄@SiO₂ core–shell structured composite pigments were prepared. All Ce_xBi_1-xVO₄ samples are single phase without impurities. The bright yellow Ce_0.15Bi_0.85VO₄@SiO₂ composite pigment exhibits yellowness (b* = 89.73) better than the response value of BiVO₄ pigment (b* = 82.72). The BiVO₄@SiO₂ pigment shows the traits of L* = 86.06, a* =  − 0.81, b* = 82.54 and ΔE = 4.31. After 672 h of UV exposure, Ce_0.15Bi_0.85VO₄@SiO₂ pigment exhibits the properties of L* = 84.99, a* =  − 4.6, b* = 87.61 and ΔE = 2.14. The composite exhibits high stability and ultraviolet (UV) resistance in acid, alkali and organic solvent. After Ce_0.15Bi_0.85VO₄@SiO₂ pigment was soaked in 3.5 wt% NaCl solution for 268 h, the substrate corrosion just occurred. This work provides an effective solution for preparing the advanced eco-friendly yellow pigments.

Keywords: Coatings; Coating; Enamel; Fluoride varnish; Inorganic LEDs; Metal Oxides; BiVO4; Ce ion; SiO2; Oil painting materials

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-025-04043-2

Chemical Papers 79 (6) 3909–3919 (2025)