A review on bismuth oxyhalide based materials for photocatalysis

Abstract

Photocatalytic solar-energy transformation is the most encouraging corridor for the environmental crisis and energy scarcity. Bismuth oxyhalide (BiOX) is the emerging class of materials that exhibit photocatalytic properties, such as...

Recent advances in bismuth oxyhalide photocatalysts for degradation of organic pollutants in wastewater

“…Moreover, the semiconductor photocatalysts have stable chemical properties, low cost, strong redox, and long service life. 1,2 Therefore, photocatalysis is particularly suitable for the purification of wastewater containing organic matter. Photocatalysis technique has been adopted as an effective strategy for degrading various organic contaminants, including antibiotics, organic dyes, organic acids, amines or phenols, and so on.…”

Durable Metal Heteroanionic Photocatalysts

“…The VBs of oxyhalides are composed of O 2p orbitals and X n p orbitals ( n = 3, 4, and 5 for X = Cl, Br, and I). − The aforesaid electronic structure enables the customization of the bandgap in oxyhalides by engineering the halide (Cl, Br, and I) identity. We have focused on metal oxyhalides with d 10 metal cations (such as Bi 3+ ) given their suitability for photocatalysis. ,− …”

pH-regulated hydrothermal synthesis and characterization of Sb4O5X2 (X = Br/Cl) and its use for the dye degradation of methyl orange both with and without light illumination

“…They introduce a special channel or void space or a layered zone inside the crystal structures, where both the units are bound by weak van der Waals interactions. 35 In these materials, chlorine and bromine are located between layers, formed by L cations and O anions.…”