Photocatalytic-Driven Antiviral Activities of Heterostructured BiOClBr - BiOBr Semiconductors.

Numerous methods for eliminating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are being extensively examined in recent years as a result of the COVID-19 pandemic and its adverse effects on society. Photocatalysis is among the most encouraging solutions since it has the capacity to fully annihilate pathogens, surpassing conventional disinfecting methods. A heterostructured photocatalytic composite of (70%W BiOClBr with 30%W BiOBr) was prepared via a simple synthetic route that yielded microspheres ∼3-4 μm in diameter.

Remote Photocatalytic Eradication of Biorecalcitrant Microorganisms via BiOClBr-The Applied Aspects of Visible Light-Driven Photocatalysis.

Photocatalysis has an exceptional capacity to eliminate a wide range of harmful microorganisms and is proven to be superior over commonly used disinfection methods. A visible light-induced photocatalyst, the BiOClBr@gypsum hybrid composite, composed of microspheres (∼3 μm) molded with a gypsum composite as a honeycomb-shaped filter was proven to inactivate a large selection of bacteria including , and via remote photocatalysis. The chemical composition and morphology of the composite were unveiled with the help of scanning electron microscopy, transmission electron microscopy, N sorption, Fourier transform infrared spectroscopy, diffuse reflectance spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy.

BiOClBr-coated fabrics with enhanced antimicrobial properties under ambient light.

This study demonstrates the fabrication of ambient light enabled antimicrobial functional fabrics by coating flower-like bismuth oxyhalide i.e. BiOClBr, with the use of poly(vinyl alcohol) (PVA) and poly(acrylic acid) (PAA) as binders for improved coating robustness and durability.

Solar Photocatalytic Degradation of Trace Organic Pollutants in Water by Bi(0)-Doped Bismuth Oxyhalide Thin Films.

Herein, we demonstrate the fabrication of Bi(0)-doped bismuth oxyhalide solid solution films for the removal of trace organic pollutants (TrOPs) in water. With the advantage of a viscous AlOOH sol, very high loadings (75 wt %) of bismuth oxyhalides were embedded within the thin films and calcined at 500 °C to develop porous alumina composite coatings. Various concentrations of Bi(0) doping were tested for their photocatalytic activity.

Disinfection and Mechanistic Insights of Escherichia coli in Water by Bismuth Oxyhalide Photocatalysis.

This study demonstrates the potential of a new BiOCl Br photocatalyst to disinfect Escherichia coli in water under simulated solar irradiation. Photocatalytic efficiency was examined for different photocatalyst loadings, solar wavelengths, exposure times, photocatalyst concentration × contact time (Ct) concept and with the use of scavengers. To elucidate the inactivation mechanism, we examined DNA damage, membrane damage, lipid peroxidation and protein release.

The fabrication of BiOCl(x)Br(1-x)/alumina composite films with highly exposed {001} facets and their superior photocatalytic activities.

We report the fabrication of thin films of bismuth oxyhalide solid solution with highly exposed {001} facets with the help of cetyltrimethylammonium bromide and aluminium oxyhydroxide. These {001} facet exposed films showed enhanced photocatalytic activities compared to those of randomly oriented facets.

Development of Hybrid BiOClx Br1-x -Embedded Alumina Films and Their Application as Highly Efficient Visible-Light-Driven Photocatalytic Reactors.

A highly stable 75 wt % BiOClx Br1-x -loaded alumina composite film has been developed for the fabrication of glass-based photoreactors. A very simple approach has been adopted that does not involve the use of a special instrument and can be applied to all types of substrates irrespective to their size and shape. The structure and morphology of the films were well characterized by XRD, SEM, TEM, N2 -sorption, IR, Raman, and UV/Vis diffuse reflectance spectroscopy.