Environmentally benign novel green pigments: Pr1–𝑥Ca𝑥PO4 (𝑥 = 0–0.4)
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Rare earth based materials have recently attracted considerable attention as potential eco-friendly colourants for low temperature as well as high temperature applications. In the present study, we have synthesized a series of Ca-doped PrPO4 compounds with the general formula, Pr1–𝑥Ca𝑥PO4 (𝑥 = 0–0.4 in steps of 0.1) and characterized the compounds by powder X-ray diffraction. All the compositions show a monoclinic monazite structure. The optical properties of the brilliantly coloured pigments [𝐿 (brightness), $a^{\ast}$ (+ red - green), $b^{\ast}$ (+ yellow - blue)] have been examined. These materials can find application as potential green colourants.
Volume 44, 2021
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Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020
Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020
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