I D
× COMMENTARYEDITOR'S PAGECOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
Nanofiltration Toray Industries, Inc. (Tokyo, Japan; www.toray.com) has created what…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment

Chementator Briefs

By Edited by Gerald Ondrey |

Prev2 of 4Next
Use your ← → (arrow) keys to browse
TiO2 coating An antimicrobial titanium dioxide coating, claimed to be much more effective than previous titanium dioxide coatings, has been developed by a team led by professor Susan Krumdieck of the University of Canterbury (Christchurch, New Zealand; www.canterbury.ac.nz), and researchers from the University of Grenoble Alpes (Grenoble, France; www.univ-grenoble-alpes.fr). TiO2 has received much attention as a possible antimicrobial material due to its photocatalytic activity (PCA) and self-cleaning properties. It has selective spectral absorption in the ultraviolet range, but is transparent to visible light. When titanium is exposed to ultraviolet (UV) light, it breaks down water vapor in air to produce free oxygen radicals, which attack organic matter, such as the membranes of bacterial cells. Krumdieck and her colleagues grow TiO2 coatings directly on stainless steel using a pulsed chemical-vapor deposition (CVD) technique she developed. An ultrasonic atomizer is used to make a fine mist of a TiO2 precursor, which is pulse-sprayed into the CVD chamber. This technique increases the rate at which the TiO2 crystals grow, resulting in a 10-µm-thick coating with an interesting structure: vertical columns of stacked 15–20-nm-thick…
Prev2 of 4Next
Use your ← → (arrow) keys to browse
Related Content
A less expensive way to make graphene
A team from RMIT University (Melbourne, Australia; www.rmit.edu.au) and the National Institute of Technology, Warangal (Warangal, India; www.nitw.ac.in) has developed…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
How separation processes profit from Industrial Internet of Things (IIoT) solutions
Up to 80% increased production rates in plastic recycling
Higher throughput and purity in sodium bicarbonate production with up to 15% less energy consumption
Help feeding nations with chemical filtering technologies
Not at the forefront of Industry 4.0?

View More

Live chat by BoldChat