The research interests of the Mills group are wide and varied including: dye and semiconductor photochemistry, redox catalysis (in particular, oxygen catalysis), solar energy conversion (in particular artificial photosynthesis) and colour and fluorescence based indicators and smart inks and plastic films.

LaTe Lab

For the second year running, the Mills group attended LaTe Lab, an event that highlights cutting edge scientific research done in Belfast to the general public. The night time public event is part of the wider NI Science Festival, a 10 day sneak peek into the goings on of the scientific community of Northern Ireland.

The Mills group showcased semiconductor photocatalyst driven technologies.

Visiting Researcher from Spain

Starting November, visiting PhD student Eva Jiminez will be joining the group for a 3 month placement to evaluate semiconductor photocatalyst containing concrete samples using Professor Andrew Mills’ rapid activity indicator inks.

Visiting Researcher from Thailand

In 2015, the Mills group had the great privilege of having Pperng Surachai Khankaew (pictured left) as a visiting young researcher to work on a joint project between Professor Andrew Mills (pictured centre) and Professor Panuwat Suppakul (pictured right).

He remained with the group for 7 months and had a tremendous impact on everyone working with him.

Harwell Campus Open Day

The Mills group sent representatives to the Harwell campus in Oxfordshire to give talks and presentations on their work on semiconductor photocatalysis and SODIS. The campus was open to the public, and over the course of the day over 15,000 people passed through to see the cutting edge in science and engineering.

PhD Studentship Available – Super-ambient Gas Phase Photocatalysis

Supervisor: Prof. A Mills; Second supervisor: Prof. Hardacre


Start date: 1st Oct 2015; duration: 3 years; qualifying candidates: UK citizens with a 1st class degree in Chemistry or Chemical Engineering by 1st October 2015.


Semiconductor photocatalysis is emerging as a significant new photochemical process for creating innovative commercial products, such as: self-cleaning glass, concrete and tiles. However, to date attention has been restricted to ambient temperature applications of the technology and in this project we explore its application at elevated temperatures. In particular, we will use semiconductor photocatalysis to mediate gas phase reactions of commercial significance, at lower temperatures than the conventional thermal catalytic reactions. These reaction will include: alcohol reforming, steam reforming, the water-gas shift reaction and environmental air clean-up reactions, such as NOx and ozone removal. The PhD candidate will receive training not only in thermal catalysis but also photocatalysis, using a variety of techniques including: DRIFTS-MS, BET, SEM, TEM and laser-driven, time-resolved transient absorption spectroscopy. This research area is very new and so open to many new discoveries and challenges; thus, the project is only really suitable for a highly motivated candidate seeking a project with adventure and panache.


Interested in applying? Send CV to:

PDRA Position now open

Professor Andrew Mills is now hiring a PDRA for a 1 year contract working with semiconductor photocatalytic materials. Applicants can apply via the following link:
PDRA Position

Chemistry World Article

A recent paper, to be published in Chemical Communications, written by Andrew Mills and Nathan Wells, has been highlighted in a Chemistry World article. The article describes a new method of detecting commercial semiconductor photocatalysts to assess their ‘self-cleaning’ ability, and represents quite a step forward for activity testing.