Patzsch, Julia, Folli, Andrea ![]() |
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Abstract
Semiconductor photocatalysis could be an effective means to combat air pollution, especially nitrogen oxides, which can be mineralized to nitrate. However, the reaction typically shows poor selectivity, releasing a number of unwanted and possibly toxic intermediates such as nitrogen dioxide. Up to now, the underlying principles that lead to this poor selectivity were not understood so a knowledge-based catalyst design for more selective materials was impossible. Herein, we present strong evidence for the slow oxygen reduction being one the causes, as the competing back-reduction of nitrate leads to the release of nitrogen dioxide. Consequently, engineering the photocatalyst for a better oxygen reduction efficiency should also increase the nitrate selectivity.
Item Type: | Article |
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Date Type: | Published Online |
Status: | Published |
Schools: | Chemistry |
Publisher: | Royal Society of Chemistry |
ISSN: | 1463-9076 |
Date of First Compliant Deposit: | 7 December 2017 |
Date of Acceptance: | 26 November 2017 |
Last Modified: | 04 Dec 2024 19:45 |
URI: | https://orca.cardiff.ac.uk/id/eprint/107388 |
Citation Data
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