Synthesis and application of titanium dioxide photocatalysis for energy, decontamination and viral disinfection: a review.

Global pollution is calling for advanced methods to remove contaminants from water and wastewater, such as TiO-assisted photocatalysis.  The environmental applications of titanium dioxide have started after the initial TiO application for water splitting by Fujishima and Honda in 1972. TiO is now used for self-cleaning surfaces, air and water purification systems, microbial inactivation and selective organic conversion.

Role of persistent free radicals and lewis acid sites in visible-light-driven wet peroxide activation by solid acid biochar catalysts - A mechanistic study.

We report the synthesis of HSO-modified biochars (SBCs) as solid-acid catalysts to activate HO at circumneutral pH under visible light radiation. Spent coffee grinds were pyrolyzed with TiO at 300, 500 and 600 °C followed by steeping in 5 M HSO and were used for the Fenton-like degradation of methyl orange (MO). The catalytic activity of SBC depended on the pyrolysis temperature and correlated well with the surface acidity and persistent free radical (PFR) concentration.

Bioprocessing of biowaste derived from food supply chain side-streams for extraction of value added bioproducts through biorefinery approach.

Food chain-based waste is generated in tonnes globally and this has led to release of greenhouse gases, poor air quality, land and water pollution. Food wastes are generated in tremendous quantity globally from local producer to international consumers and traders. Authors have used systematic literature review to identify the research gaps, thematic areas, methodology, sustainable techniques and future directions of processing food supply chain waste.

Present applications of titanium dioxide for the photocatalytic removal of pollutants from water: A review.

The evolution of modern technology and industrial processes has been accompanied by an increase in the utilization of chemicals to derive new products. Water bodies are frequently contaminated by the presence of conventional pollutants such as dyes and heavy metals, as well as microorganisms that are responsible for various diseases. A sharp rise has also been observed in the presence of new compounds heretofore excluded from the design and evaluation of wastewater treatment processes, categorized as "emerging pollutants".