Titanium Dioxide/Upconversion Nanoparticles/Cadmium Sulfide Nanofibers Enable Enhanced Full-Spectrum Absorption for Superior Solar Light Driven Photocatalysis

被引：75

作者：

Zhang, Fu ^{[1
]}

Zhang, Chuan-Ling ^{[2
]}

Wang, Wan-Ni ^{[1
]}

Cong, Huai-Ping ^{[2
]}

Qian, Hai-Sheng ^{[1
]}

机构：

[1] Hefei Univ Technol, Dept Med Mat & Rehabil Engn, Sch Biol & Med Engn, Hefei 230009, Peoples R China

[2] Hefei Univ Technol, Sch Chem & Chem Engn, Hefei 230009, Peoples R China

来源：

CHEMSUSCHEM | 2016年 / 9卷 / 12期

基金：

中国国家自然科学基金;

关键词：

electrospinning; energy transfer; FRET; nanoparticles; photocatalysis; RESONANCE ENERGY-TRANSFER; UP-CONVERSION NANOPARTICLES; VIVO PHOTODYNAMIC THERAPY; REDUCED GRAPHENE OXIDE; SENSITIVE DETECTION; QUANTUM DOTS; RHODAMINE-B; TIO2; WATER; NANOSPHERES;

D O I：

10.1002/cssc.201600334

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this work, we demonstrate an electrospinning technique to fabricate TiO2/upconversion nanoparticles (UCNPs)/CdS nanofibers on large scale. In addition, the as-prepared TiO2 nanofibers are incorporated with a high population of UCNPs and CdS nanospheres; this results in Forster resonance energy-transfer configurations of the UCNPs, TiO2, and CdS nanospheres that are in close proximity. Hence, strong fluorescent emissions for the Tm3+ ions including the (1)G(4)(3)H(6) transition are efficiently transferred to TiO2 and the CdS nanoparticles through an energy-transfer process. The as-prepared TiO2/UCNPs/CdS nanofibers exhibit full-spectrum solar-energy absorption and enable the efficient degradation of organic dyes by fluorescence resonance energy transfer between the UCNPs and TiO2 (or CdS). The UCNPs/TiO2/CdS nanofibers may also have enhanced energy-transfer efficiency for wide applications in solar cells, bioimaging, photodynamics, and chemotherapy.

引用

页码：1449 / 1454

页数：6