Kieran Nolan- Head of School, Chemical Sciences, DCU

  • Presentation Title:

    Novel Materials for Wastewater Treatment

    Presentation Synopsis:

    Detergents, dyes, pesticides, herbicides and pharmaceuticals in the environment in recent years. At the same timThere has been a growing awareness of the existence of micro-pollutants such as e, conventional ‎water and wastewater treatments such as adsorption, ozonation, UV and bio-degradation can only partially remove many of these micro-pollutants from treated water. Semiconductor photocatalysis using titanium dioxide (TiO2) has also been very well researched due to the potential of complete degradation of organic compounds and the minimization of waste disposal and energy consumption. However, TiO2 also has limitations, not least the requirement for UV light and small particle sizes which can impede the application of this technology in industrial wastewater treatment processes. To overcome the present disadvantages of TiO2, different TiO2 nanostructures (nanoparticle, nanotube, nanowire and mesoporous beads) were developed and their effectiveness in removing various pharmaceuticals and pesticides from water were evaluated. Results of these experiments will be presented along with new concepts for the application of these materials in real world environments.

    Speaker Bio:

    Kieran Nolan completed his PhD at York University, Toronto, Canada in 1996 and then worked in Canada as a research chemist in both the pharmaceutical and packaging industry. In 1998 he joined the National Centre for Sensor Research at Dublin City University. In 2001 Kieran became a Lecturer in the School of Chemical Sciences at DCU and then Senior Lecturer in 2012. In October 2014 Kieran became the Head of School of Chemical Sciences at DCU.
    The Nolan research group has been intensively involved in the area of environmental sciences since its inception in 2001. In the past, Dr Nolan’s group has specialised in the development of new chemoreceptors for application in environmental sensing and extraction of heavy metals from waste streams. More recently, the Nolan group has turned its attention to the design and preparation of new photocatalysts and integrated photocatalytic composites such as dye-TiO2, activated carbon-TiO2, Graphene-TiO2 and mineral-graphene composites for application in the removal of pollutants from industrial waste water streams. The Nolan group also specialises in new ‘Green’ synthetic technologies, with particular emphasis on the development of new energy and water efficient flow photochemical reactors. Dr Nolan has supervised/co-supervisor 21 PhD students to completion since 2001.

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