文献类型：期刊文献

英文题名：Molybdenum oxide nanorods decorated with molybdenum phosphide quantum dots for efficient photocatalytic degradation of rhodamine B and norfloxacin

作者：Huang, Yan[2];Xing, Wenxin[3,4];Zhou, Liang[1,5];Tian, Baozhu[3,4,5];Zhang, Jinlong[3,4,5];Zhou, Yi[1,5]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Res Inst Phys & Chem Engn Nucl Ind, Tianjin 300180, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[4]East China Univ Sci & Technol, Sch Chem & Mol Engn, Inst Fine Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[5]East China Univ Sci & Technol, Shanghai Engn Res Ctr Multimedia Environm Catalys, Shanghai 200237, Peoples R China

年份：2022

卷号：48

期号：7

起止页码：2887

外文期刊名：RESEARCH ON CHEMICAL INTERMEDIATES

收录：;EI(收录号：20222112135553);WOS:【SCI-EXPANDED(收录号:WOS:000796802300001)】；

基金：This work was supported by the National Natural Science Foundation of China (21906056, 22006038, U1862112), Shanghai Municipal Science and Technology (No. 20DZ2250400), and Shanghai Sailing Program (19YF1411900). And All authors gratefully acknowledge the support of Science and Technology on Particle Transport and Separation Laboratory.

语种：英文

外文关键词：MoP quantum dots; MoO3 nanorod; Photodegradation; Rhodamine B; Norfloxacin

摘要：Molybdenum oxide (MoO3), as a transition metal oxide, has excellent catalytic activity, chemical stability, and high application value in the catalytic field. As a typical cocatalyst, noble metals, such as silver and gold, can be decorated with MoO3 and improve their visible light absorption performance and photogenerated charge separation efficiency to achieve a higher light energy utilization rate. However, the high price of noble metals makes it challenging to realize large-scale industrial applications. Herein, a highly dispersed MoP quantum dot (QDs) decorated MoO3 nanorods (PMO) was prepared by the co-calcination method to achieve efficient photocatalytic oxidation of target organic contaminants. Rhodamine B (RhB) and norfloxacin (NOR) were used as the model organic contaminants to evaluate the photocatalytic activity of the as-prepared composite photocatalysts. Based on the photoelectric performance and band structure analysis results, the enhancement mechanism of modification with MoP QDs in PMO was proposed. The introduction of MoP QDs in PMO can accelerate electron transfer and achieve a low recombination rate of photogenerated charges. Therefore, the photocatalytic degradation efficiency of RhB and NOR by PMO was higher than that of pristine MoO3 nanorods and MoP QDs. The degradation efficiency of RhB and NOR could reach more than 97% and 100% within 40 min by PMO-5. Furthermore, photogenerated holes and hydroxyl free radical (center dot OH) as the primary active oxidants involved in the oxidation process of organic contaminants by PMO-5. PMO-5 still maintained vigorous catalytic activity after five cycles, indicating that it had good chemical stability. This work could provide a new strategy to construct a highly efficient photocatalyst for the efficient degradation of organic contaminants.