Open AccessFabrication of Ag/TiO2/Fe2TiO5 nanofibers by electrospinning and their enhanced photocatalytic activity
Author(s) -
Fan Yang,
Xianbo Yu,
Tong Zhang,
Jin Fen Niu,
jianing Li,
Junkun Nie,
J. P. Li,
Bing Yao
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/344/1/012096
Subject(s) - photocatalysis , anatase , rutile , materials science , electrospinning , rhodamine b , calcination , chemical engineering , nanofiber , surface plasmon resonance , nanoparticle , nuclear chemistry , nanotechnology , composite material , catalysis , chemistry , organic chemistry , polymer , engineering
Herein, Ag/TiO 2 /Fe 2 TiO 5 nanofiber composites with different contents of Ag were prepared using electrospinning with a calcining process. The structure and morphology of Ag/TiO 2 /Fe 2 TiO 5 were characterized by TG-DTA, FT-IR, XRD, and SEM. The results shown that the organic template was completely decomposed at about 670°C. It can also find the rutile and anatase TiO 2 coexisted in TiO 2 nanofibers, but the peaks of anatase TiO 2 disappeared in Fe 2 TiO 5 /TiO 2 . In addition, when Ag added in the Fe 2 TiO 5 /TiO 2 , the peaks of Fe 2 TiO 5 and TiO 2 have been strengthened greatly. It can conclude that the Fe 3+ and Ag + have an opposite effect on the crystal growing of the sample. In addition, the Ag nanoparticles (AgNPs) were well distributed in the surface of TiO 2 /Fe 2 TiO 5 . The UV-Vis DRS and electrochemical tests indicated that the light absorption and carries separation of Ag/TiO 2 /Fe 2 TiO 5 were enhanced obviously. Since the surface plasmon resonance effect of AgNPs and synergistic effect, the as-prepared composite (the content of Ag was 3% mol) show a higher photocatalytic performance in degradation of Rhodamine B (RhB 99.6%) than that of pure-TiO 2 and TiO 2 /Fe 2 TiO 5 .