<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Jan-Max Arana Juve</style></author><author><style face="normal" font="default" size="100%">Li, Fan</style></author><author><style face="normal" font="default" size="100%">Yangmo Zhu</style></author><author><style face="normal" font="default" size="100%">Liu, Wen</style></author><author><style face="normal" font="default" size="100%">Lars D.M. Ottosen</style></author><author><style face="normal" font="default" size="100%">Zhao, Dongye</style></author><author><style face="normal" font="default" size="100%">Zongsu Wei</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Concentrate and degrade PFOA with a photo-regenerable composite of In-doped TNTs@AC</style></title><secondary-title><style face="normal" font="default" size="100%">Chemosphere</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Adsorptive photocatalyst</style></keyword><keyword><style  face="normal" font="default" size="100%">Concentrate-and-degrade</style></keyword><keyword><style  face="normal" font="default" size="100%">Electron-hole recombination</style></keyword><keyword><style  face="normal" font="default" size="100%">Heterojunction</style></keyword><keyword><style  face="normal" font="default" size="100%">Perfluorooctanoic acid</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2022</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://www.sciencedirect.com/science/article/pii/S0045653522009882</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">300</style></volume><pages><style face="normal" font="default" size="100%">134495</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">“Concentrate-and-degrade” is an effective strategy to promote mass transfer and degradation of pollutants in photocatalytic systems, yet suitable and cost-effective photocatalysts are required to practice the new concept. In this study, we doped a post-transition metal of Indium (In) on a novel composite adsorptive photocatalyst, activated carbon-supported titanate nanotubes (TNTs@AC), to effectively degrade perfluorooctanoic acid (PFOA). In/TNTs@AC exhibited both excellent PFOA adsorption (&amp;gt;99% in 30 min) and photodegradation (&amp;gt;99% in 4 h) under optimal conditions (25 °C, pH 7, 1 atm, 1 g/L catalyst, 0.1 mg/L PFOA, 254 nm). The heterojunction structure of the composite facilitated a cooperative adsorption mode of PFOA, i.e., binding of the carboxylic head group of PFOA to the metal oxide and attachment of the hydrophobic tail to AC. The resulting side-on adsorption mode facilitates the electron (e‒) transfer from the carboxylic head to the photogenerated hole (h+), which was the major oxidant verified by scavenger tests. Furthermore, the presence of In enables direct electron transfer and facilitates the subsequent stepwise defluorination. Finally, In/TNTs@AC was amenable to repeated uses in four consecutive adsorption-photodegradation runs. The findings showed that adsorptive photocatalysts can be prepared by hybridization of carbon and photoactive semiconductors and the enabled “concentrate-and-degrade” strategy is promising for the removal and degradation of trace levels of PFOA from polluted waters.</style></abstract></record></records></xml>