Unveiling unusual coloration in amorphous phosphate pigments: a study inspired by the mineral Brazilianite

Abstract Brazilianite, with the formula NaAl3(PO4)2(OH)4, exhibits an intriguing pale yellow to green coloration, a phenomenon not readily explained by the absence of conventional d-block chromophoric metal ions. This study investigates the synthesis of amorphous phosphate-based pigments composition...

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Autori principali:	Hiroaki Onoda, Kanata Higuchi, Thitirat Charoonsuk, Phieraya Pulphol, Rangson Muanglhua, Naratip Vittayakorn
Natura:	Artigo
Lingua:	Inglês
Pubblicazione:	SpringerOpen 2025-12-01
Serie:	Journal of Materials Science: Materials in Engineering
Soggetti:	Materials inspired by nature Unusual coloration Inorganic phosphate pigments Amorphous materials Non-chromophoric color Phosphate network
Accesso online:	https://doi.org/10.1186/s40712-025-00389-3
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