Zhang Junjie, Zhao Suling, Xu Zheng, Zhang Ligang, Zuo Pengfei, Wu Qixiao
Key Laboratory of Luminescence and Optical Information, Beijing Jiaotong University, Ministry of Education Beijing 100044 China.
Institute of Optoelectronics Technology, Beijing Jiaotong University Beijing 100044 China.
RSC Adv. 2019 Jan 28;9(7):3688-3692. doi: 10.1039/c8ra07861k. eCollection 2019 Jan 25.
Herein, the infrared-responsive photocatalyst NaYF:Yb,Tm@ZnO has been successfully synthesized by combining semiconductor ZnO with an upconversion material, NaYF:Yb,Tm. In this composite, NaYF:Yb,Tm emits intense ultraviolet and blue upconversion luminescence upon excitation by a 980 nm laser and provides the necessary energy of ultraviolet light to ZnO. The photocatalytic activity of NaYF:Yb,Tm@ZnO composites has been studied using methylene blue by irradiation with a 980 nm laser, and the results indicate that the NaYF:Yb,Tm@ZnO composite is an advanced near-infrared-driven photocatalyst; this study presents a promising strategy to utilize the near-infrared-responsive upconversion materials for photocatalytic applications.
在此，通过将半导体ZnO与上转换材料NaYF:Yb,Tm相结合，成功合成了红外响应光催化剂NaYF:Yb,Tm@ZnO。在这种复合材料中，NaYF:Yb,Tm在980 nm激光激发下发出强烈的紫外和蓝色上转换发光，并为ZnO提供所需的紫外光能量。通过用980 nm激光照射，利用亚甲基蓝研究了NaYF:Yb,Tm@ZnO复合材料的光催化活性，结果表明NaYF:Yb,Tm@ZnO复合材料是一种先进的近红外驱动光催化剂；本研究提出了一种利用近红外响应上转换材料进行光催化应用的有前景的策略。
