Dual-mode Mn– and Sn–Silica composites from millet husk: Photoreduction of Cr(VI) and sulphanilamide, adsorptive capture of basic fuchsin

Biogenic silica extracted from foxtail millet husk has been used as a sustainable matrix for preparing Mn–SiO2 and Sn–SiO2 composites with pollutant-specific functionality. Mn incorporation narrows the band gap to ∼3.1 eV and anchors Mn2+ within the amorphous network, enabling efficient UV-C-driven...

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Main Authors:	G. Sivasubramanian, Nair J. Anagha, P. Devika, P. Archana, Athul Ravi, K.M. Sreedhar, K.M. Sreekanth, Parthasarathi Bera, Anjali Kaiprathu
Format:	Artigo
Language:	Inglês
Published:	Elsevier 2026-06-01
Series:	Case Studies in Chemical and Environmental Engineering
Subjects:	Biogenic silica Mn–Sn doping Cr(VI) photoreduction Sulphanilamide degradation Basic fuchsin adsorption Multifunctional composites
Online Access:	http://www.sciencedirect.com/science/article/pii/S2666016426000162
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