TiO2 alterations with natural aging: Unveiling the role of nitric acid on NIR reflectance
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- 作者：Riccardo Paolinia ; riccardo.paolini@polimi.it" class="auth_mail" title="E-mail the corresponding author ; Mohamad Sleimanb ; c ; d ; MariaPia Pedeferrie ; f ; Maria Vittoria Diamantie ; f ; mariavittoria.diamanti@polimi.it" class="auth_mail" title="E-mail the corresponding author
- 关键词：TiO2 ; Near-infrared reflectance ; Nitric acid ; Aging ; P25
- 刊名：Solar Energy Materials and Solar Cells
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：157
- 期：Complete
- 页码：791-797
- 全文大小：1323 K
文摘
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The near infrared (NIR) reflectance of TiO2 containing surfaces was investigated.
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The NIR reflectance of anatase containing materials increased upon natural aging.
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The effect was ascribed to the generation of HNO3 by NOx photocatalytic degradation.
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This combines positive air purification and improvements in optical-radiative properties.
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The finding is a countertrend, as typically aged materials lose solar reflectance.