School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China.
School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China.
J Colloid Interface Sci. 2016 Jan 15;462:382-8. doi: 10.1016/j.jcis.2015.09.055. Epub 2015 Sep 25.
Enhanced light absorption and effective separation of photogenerated charges are the main strategies to improve the performance of photocatalytic materials. In this study, Ag3PO4/N-doped BiPO4 (N-BiPO4) core-shell structure photocatalyst was synthesized by a simple in-situ growth strategy in an organic solvent. The separation of photogenerated electron-hole was enhanced by the doping of nitrogen, because of the emergence of N-O impurity energy levels. The increased photocatalytic activity of Ag3PO4/N-BiPO4 could be attributed to the in-situ formation of chemical bonds between Ag3PO4 and N-BiPO4, which accelerate the separation of electron-hole pairs. The photocatalytic performance of the as-synthesized Ag3PO4/N-BiPO4 was evaluated by monitoring the decolorization of methyl orange under sunlight irradiation. Ag3PO4/N-BiPO4 was capable of bleaching 95% MO within 40min.
增强光吸收和有效分离光生电荷是提高光催化材料性能的主要策略。在这项研究中，通过在有机溶剂中采用简单的原位生长策略合成了 Ag3PO4/N 掺杂 BiPO4（N-BiPO4）核壳结构光催化剂。氮掺杂增强了光生电子-空穴的分离，因为出现了 N-O 杂质能级。Ag3PO4/N-BiPO4 的光催化活性增加可归因于 Ag3PO4 和 N-BiPO4 之间原位形成化学键，这加速了电子-空穴对的分离。通过监测在阳光照射下甲基橙的脱色来评估所合成的 Ag3PO4/N-BiPO4 的光催化性能。Ag3PO4/N-BiPO4 在 40 分钟内能够将 95%的 MO 脱色。
