In 21 day(s), 1 hour(s) and 42 minute(s): StFX Scholar will be unavailable June 28-30 due to an upcoming planned power shutdown at the University of Toronto. During this time, all services and websites related to Scholars Portal (including this database and the StFX Dataverse, hosted by Borealis), will be temporarily unavailable from Sunday, June 28 at 11 p.m. ADT until Tuesday, June 30 at 12 p.m. ADT.

StFX SCHOLAR

StFX Scholar is the official repository of St. Francis Xavier University (StFX), offering a secure and free platform to share publications, academic outputs, and other works of StFX faculty, staff, and students.

StFX Scholar is also the hub for exploring our digitized and digital collections. Our mission is to preserve and highlight the intellectual and creative achievements of the StFX community and the broader Antigonish region.

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Recent Submissions

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    Item type: Item , Access status: Open Access ,
    An enlightening approach to the dementia epidemic : visible-light mediated pollutant remediation
    (St. Francis Xavier University, 2026-03-10) Palmer, Sydney; Hallett-Tapley, Geniece
    Polycyclic Aromatic Hydrocarbons (PAH’s) are of growing societal interest due to their negative health effects. PAH exposure has been linked to carcinogenicity, teratogenicity, neurodegeneration, and many other neurotoxic effects, such as dementia. 1 PAHs are often released into the environment during the incomplete combustion of fossil fuels. 1 Common methods of human exposure are vehicle exhaust, tobacco smoking, and improper industrial waste disposal1 through both contaminated waterways and ground soil. These organic pollutants are composed of multiple fused benzene rings therefore they are notoriously difficult to degrade due to their rigid structure and aromaticity. Previous remediation methods including chemical treatment, sorbents, adsorption, and filtration processes face many drawbacks and beg the need for a more efficient and environmentally friendly manner of degrading these pollutants.2,3 Visible-light mediated photocatalysts are arising as a promising, environmentally friendly approach to degradation of these persistent molecules. This work proposes the use of visible-light activated AuNP/ZnO/biochar to degrade PAHs of interest. Plasmonic noble AuNPs are of photocatalytic interest due to their ability to extend light activation into the visible range. H2O2 is used to initiate the breakdown of these molecules by the formation of reactive hydroxyl radicals (OH•) through the Fenton method. In this work, preliminary photocatalytic trials demonstrate complete degradation of 11 PAHs at 0.01 mM in under 180 minutes of visible-light irradiation. The effect of each component of the three-component catalyst and H2O2 are investigated along with the most effective metal oxide. The catalyst exhibited moderate recyclability in subsequent reuse trials. An optimized catalyst found increased photodegradation efficiency in a host of PAHs through implementation of high surface area ZnONP compared to bulk ZnO.
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    Item type: Item , Access status: Open Access ,
    News@StFX (2002-10-14)
    (St. Francis Xavier University, 2002-10-15)
    News@StFX, no. 90, October 15, 2002, is a newsletter published semi-monthly by St. Francis Xavier University, Communications and Marketing Office
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    Item type: Item , Access status: Open Access ,
    St. Francis Xavier University Convocation Pamphlet, December 2011
    (St. Francis Xavier University, 2011-12-10)
    Convocation pamphlet published by St. Francis Xavier University, including lists of graduates, awards, and commencement exercises.
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    Item type: Item , Access status: Open Access ,
    St. Francis Xavier University Convocation Pamphlet, December 2010
    (St. Francis Xavier University, 2010-12-12)
    Convocation pamphlet published by St. Francis Xavier University, including lists of graduates, awards, and commencement exercises.
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    Item type: Item , Access status: Open Access ,
    St. Francis Xavier University Convocation Pamphlet, December 2009
    (St. Francis Xavier University, 2009-12-05)
    Convocation pamphlet published by St. Francis Xavier University, including lists of graduates, awards, and commencement exercises.