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Titanium Dioxide: Structure, Impact, and Toxicity

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  • Anca Diana Racovita

    (Department of Chemistry, Faculty of Science, University of Warwick, Coventry CV4 7AL, UK)

Abstract

Titanium dioxide, first manufactured a century ago, is significant in industry due to its chemical inertness, low cost, and availability. The white mineral has a wide range of applications in photocatalysis, in the pharmaceutical industry, and in food processing sectors. Its practical uses stem from its dual feature to act as both a semiconductor and light scatterer. Optical performance is therefore of relevance in understanding how titanium dioxide impacts these industries. Recent breakthroughs are summarised herein, focusing on whether restructuring the surface properties of titanium dioxide either enhances or inhibits its reactivity, depending on the required application. Its recent exposure as a potential carcinogen to humans has been linked to controversies around titanium dioxide’s toxicity; this is discussed by illustrating discrepancies between experimental protocols of toxicity assays and their results. In all, it is important to review the latest achievements in fast-growing industries where titanium dioxide prevails, while keeping in mind insights into its disputed toxicity.

Suggested Citation

  • Anca Diana Racovita, 2022. "Titanium Dioxide: Structure, Impact, and Toxicity," IJERPH, MDPI, vol. 19(9), pages 1-20, May.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:9:p:5681-:d:810112
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    1. Arthey, Stephen & Clarke, Valerie A., 1995. "Suntanning and sun protection: A review of the psychological literature," Social Science & Medicine, Elsevier, vol. 40(2), pages 265-274, January.
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