<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Ferreira, Sofia Henriques</style></author><author><style face="normal" font="default" size="100%">Morais, Maria</style></author><author><style face="normal" font="default" size="100%">Nunes, Daniela</style></author><author><style face="normal" font="default" size="100%">Oliveira, Maria João</style></author><author><style face="normal" font="default" size="100%">Rovisco, Ana</style></author><author><style face="normal" font="default" size="100%">Pimentel, Ana</style></author><author><style face="normal" font="default" size="100%">Águas, Hugo</style></author><author><style face="normal" font="default" size="100%">Fortunato, Elvira</style></author><author><style face="normal" font="default" size="100%">Martins, Rodrigo</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">{High UV and Sunlight Photocatalytic Performance of Porous ZnO Nanostructures Synthesized by a Facile and Fast Microwave Hydrothermal Method}</style></title><secondary-title><style face="normal" font="default" size="100%">Materials</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">hydrothermal synthesis</style></keyword><keyword><style  face="normal" font="default" size="100%">mi-crowave</style></keyword><keyword><style  face="normal" font="default" size="100%">porous nanostructures</style></keyword><keyword><style  face="normal" font="default" size="100%">sunlight photocatalysis</style></keyword><keyword><style  face="normal" font="default" size="100%">zinc hydroxide carbonate</style></keyword><keyword><style  face="normal" font="default" size="100%">ZnO</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2021</style></year><pub-dates><date><style  face="normal" font="default" size="100%">may</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.3390/ma14092385 https://www.mdpi.com/1996-1944/14/9/2385</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">9</style></number><publisher><style face="normal" font="default" size="100%">Multidisciplinary Digital Publishing Institute</style></publisher><volume><style face="normal" font="default" size="100%">14</style></volume><pages><style face="normal" font="default" size="100%">2385</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The degradation of organic pollutants in wastewaters assisted by oxide semiconductor nanostructures has been the focus of many research groups over the last decades, along with the synthesis of these nanomaterials by simple, eco-friendly, fast, and cost-effective processes. In this work, porous zinc oxide (ZnO) nanostructures were successfully synthesized via a microwave hydrothermal process. A layered zinc hydroxide carbonate (LZHC) precursor was obtained after 15 min of synthesis and submitted to different calcination temperatures to convert it into porous ZnO nanostructures. The influence of the calcination temperature (300, 500, and 700 °C) on the morphological, structural, and optical properties of the ZnO nanostructureswas investigated. All ZnO samples were tested as photocatalysts in the degradation of rhodamine B (RhB) under UV irradiation and natural sunlight. All samples showed enhanced photocatalytic activity under both light sources, with RhB being practically degraded within 60 min in both situations. The porous ZnO obtained at 700 °C showed the greatest photocatalytic activity due to its high crystallinity, with a degradation rate of 0.091 and 0.084 min−1 for UV light and sunlight, respectively. These results are a very important step towards the use of oxide semiconductors in the degradation of water pollutants mediated by natural sunlight.&lt;/p&gt;
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