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Preparation of Bi@Bi2Sn2O7/TiO2 Plasmonic Composite Fibers with Enhanced Photocatalytic Hydrogen Generation Activity
Author NameAffiliationE-mail
LI Yue-Jun College of Chemistry, Baicheng Normal University, Baicheng, Jilin 137000, China  
CAO Tie-Ping College of Chemistry, Baicheng Normal University, Baicheng, Jilin 137000, China bcctp2008@163.com 
ZHAO Yan-Hui College of Chemistry, Baicheng Normal University, Baicheng, Jilin 137000, China  
SUN Da-Wei College of Chemistry, Baicheng Normal University, Baicheng, Jilin 137000, China
College of Chemistry, Jilin Normal University, Siping, Jilin 136000, China 		 
WANG Xia College of Chemistry, Baicheng Normal University, Baicheng, Jilin 137000, China  
Abstract: By employing electrospun TiO2 nanofiber as substrate, Bi@Bi2Sn2O7/TiO2 plasmonic composite fibers were prepared via one-step hydrothermal method. The composition, morphology and optical properties were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), high-resolution transmission electron microscope (HRTEM), ultraviolet-visible diffuse reflection spectra (UV-Vis DRS) and photoluminescence spectroscopy (PL) analysis. The photocatalytic water splitting for hydrogen evolution was investigated over Bi@Bi2Sn2O7/TiO2 plasmonic composite fibers with triethanolamine as the donor residue. The results showed that the Bi nanoparticles were generated onto Bi2Sn2O7 nanoparticle via the in situ reduction of Bi3+ by glucose, meanwhile grew on the TiO2 nanofibers surface. The enhanced photocatalytic activity of the Bi@Bi2Sn2O7/TiO2 plasmonic composites fibers can be further improved mainly attributed to the formation of high-quality p-n heterojunctions between Bi2Sn2O7 and titanium dioxide, the plasma resonance effect of metal bismuth, and the synergistic effect of plasma resonance effect and p-n heterojunction. The corresponding H2 production rate was 7.26 mmol·h-1·g-1.
Keywords: composite fibers  plasma  photocatalysis  hydrogen generation
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LI Yue-Jun,CAO Tie-Ping,ZHAO Yan-Hui,SUN Da-Wei,WANG Xia.Preparation of Bi@Bi2Sn2O7/TiO2 Plasmonic Composite Fibers with Enhanced Photocatalytic Hydrogen Generation Activity[J].Chinese Journal of Inorganic Chemistry,2019,35(8):1371-1378.
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Chinese Journal of Inorganic Chemistry