Publication Type:

Journal Article


Materials Letters, Volume 283, p.128750 (2021)



Cr(VI) reduction, Fibrous red phosphorus, Photocatalysis, Solid state synthesis


Hexavalent chromium is an important inorganic industrial effluent in the water that causes serious health problems to the mankind. Photocatalytic reduction of Cr(VI) is a green technology that converts the toxic Cr(VI) to non-toxic Cr(III). In the photocatalytic reduction of Cr(VI), transition metal oxide semiconductors are mainly used as photocatalysts. This infers, for the removal of a transition metal i.e. Cr(VI), another transition metal is added in the form of photocatalyst. Hence, we explore a non-metallic, elemental photocatalyst fibrous red phosphorus (FRP), a crystalline allotrope of red phosphorus as photocatalyst for Cr(VI) reduction. FRP exhibits excellent photocatalytic activity towards Cr(VI) reduction under direct sunlight and we observed complete reduction of Cr(VI) (25 mg/L) within 40 min at pH-2.

Cite this Research Publication

T. K. Athira, Roshith, M., Dr. Satheesh Babu T. G., and Kumar, D. V. Ravi, “Fibrous red phosphorus as a non-metallic photocatalyst for the effective reduction of Cr(VI) under direct sunlight”, Materials Letters, vol. 283, p. 128750, 2021.