Developments in Titanium-Based Alkali and Alkaline Earth Metal Oxide Catalysts for Sustainable Biodiesel Production: A Review.

Biodiesel represents a biodegradable, environmentally friendly, and renewable alternative to fossil fuels. Despite more than three decades of research, significant obstacles still hinder the widespread production of biodiesel. This current review elucidates both the potential and the existing challenges associated with homogeneous and heterogeneous catalysts in catalyzing biodiesel production, with a particular focus on alkali analogues, alkaline earth metal oxides, and titania-based catalysts.

Recent case studies on the use of ozone to combat coronavirus: Problems and perspectives.

Coronavirus pandemic has created havoc in the world. COVID-19 is now officially labeled as Severe Acute Respiratory Syndrome-related Coronavirus-SARS-CoV-2. Therefore, it is equally important to combat the virus both inside the human body as well as in the environment.

Remarkably selective biocompatible turn-on fluorescent probe for detection of Fe in human blood samples and cells.

The robust nature of a biocompatible fluorescent probe is demonstrated, by its detection of Fe even after repeated rounds of quenching (reversibility) by acetate in real human blood samples and cells . Significantly trace levels of Fe ions up to 8.2 nM could be detected, remaining unaffected by the existence of various other metal ions.

Photoactive titania float for disinfection of water; evaluation of cell damage by bioanalytical techniques.

A photoactive float was fabricated with the modified titania to cause a feasible disinfection of water, contaminated with E. coli. The commercially available titania was doped with neodymium by pulverization technique to enhance its activity in sunlight and a multiapproach technique was used to evaluate the extended efficiency of the doped sample.

Enhanced bactericidal activity of modified titania in sunlight against Pseudomonas aeruginosa, a water-borne pathogen.

Photocatalyst-mediated inactivations generate reactive oxygen species and OH radicals, which induce oxidative destruction of membrane integrity, causing damage to membrane phospholipids of gram negative bacteria like Pseudomonas aeruginosa. Nanosized TiO(2) was synthesized by gel to crystalline conversion and Zr-doped TiO(2) was synthesized by pulverization using appropriate precursor. The doped nanocrystals retained the anatase phase with a marginal increase in crystallite size, averaging at 25nm.

Synthesis and comparative study of nano-TiO2 over Degussa P-25 in disinfection of water.

Nanostructured TiO(2) crystals were synthesized by gel to crystalline conversion. The crystals obtained were anatase form of titania averaging in 30 nm particles with an intrinsic band gap of 3.1 eV.