文献类型：期刊文献

英文题名：Controllable One-Step Synthesis of Mixed-Phase TiO2 Nanocrystals with Equivalent Anatase/Rutile Ratio for Enhanced Photocatalytic Performance

作者：Lei, Yuchen[1];Yang, Yun[1];Zhang, Peilin[1];Zhou, Jiaojiao[1];Wu, Jing[1];Li, Kuang[1];Wang, Weiwei[1];Chen, Luyang[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2021

卷号：11

期号：5

外文期刊名：NANOMATERIALS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000657005200001)】；

基金：This research was funded by the National Natural Science Foundation of China (51502092), the Fundamental Research Funds for the Central Universities (JKD01211601,222201718002), the Thousand Talents Program Young Project in China, and the Program for Eastern Scholar at Shanghai Institutions of Higher Learning (TP2015028).

语种：英文

外文关键词：TiO2 nanocrystals; photocatalytic degradation; mixed crystal phase; hybrid structure

摘要：In this study, the novel mixed-phase TiO2 nanocrystals (s-TiO2) with nearly equivalent anatase/rutile ratio were fabricated in the reagent of sec-butanol at the relatively low temperature of 80 degrees C by using a facile one-step condensing reflux method. The photocatalytic water splitting hydrogen production performance of s-TiO2 nanocrystals is close to that of commercial TiO2 (P25), and its photocatalytic degradation performance is about four times that of P25. The energy-level staggered interfaces and surface bridged hydroxyl groups significantly increased due to the anatase/rutile mixed-phase crystal structure and high specific surface area, which might generate the synergistic effect for the improvement of photocatalytic degradation.