Improved visible light photocatalytic activity of mesoporous FeVO4 nanorods synthesized using a reactable ionic liquid

Abstract

Mesoporous FeVO4 nanorods were successfully synthesized by calcining the precursor Fe-VO4•1.1H2O nanorods, which were obtained via a simple hydrothermal method in the presence of a reactable metal-ion-containing ionic liquid, 1-octyl-3-methylimidazolium tetrachloride ferrate(III) ([Omim]FeCl4). The structure and morphology of the prepared samples were examined using various characterization techniques. During the synthetic process, [Omim]FeCl4 acted as the solvent, reactant, and capping agent simultaneously. Moreover, the porous FeVO4 nanorods as the heterogeneous photo-Fenton-like semiconductor catalyst for the degradation of tetracycline and rhodamine B under visible light irradiation exhibited excellent photocatalytic activity. This excellent photocatalytic activity of the porous FeVO4 nanorods can be attributed to the synergistic effect of their high electron-hole pair separation rate, suitable band gap structure, and large specific surface area. The possible photocatalytic degradation mechanism of FeVO4/H2O2 photocatalytic systems was also discussed in detail.

FeV3O8 Nanorods for Photodegrading Multiple Dyes

“…Obviously, the FeV 3 O 8 /H 2 O 2 system is superior to the commercial P25 (35%). In a word, the FeV 3 O 8 catalyst exhibits higher excellent catalytic efficiency than those of reported iron–vanadium oxides such as FeVO 4 nanosheets and other similar iron-based materials ,− (Table ).…”

The highly stable construction of Pt/FeVO4 heterostructure with improving photocatalytic performance and growth mechanism for •O2 and •OH production based on Electron Spin Resonance study

“…All diffractions peaks showed a spectrum of pure FeVO 4 anorthic-phase, the cell had lattice-parameters a = 6.7190 Å, b = 8.0600 Å, and c = 9.2540 Å, which accord good match with JCPD (card No. 71-1592) [17,22]. The anorthic phase, commonly known as the triclinic phase, is the crystal system with the least symmetry.…”

“…The peak intensity rises, revealing the Pt/FeVO 4 composite's high crystallinity and surface area [22,23]. X-ray photon-spectroscopy (XPS) a exible surface-analysis approach was used to further study the chemical analysis, composition as well as binding locations.…”

Iron-doped g-C3N4 catalysts fabricated by forming Fe–N moieties with outstanding photo-Fenton activity toward tetracycline degradation

“…[4][5][6][7][8][9][10] As one of the available AOPs, heterogeneous photo-Fenton reactions have attracted more and more attention as they not only can overcome the drawbacks of traditional homogeneous Fenton reactions (narrow solution pH value range and large amounts of iron sludge production) but can also accelerate the Fe 3+ /Fe 2+ cycle and exert a synergistic effect of photocatalysis and the Fenton reaction to improve the degradation efficiency. [11][12][13][14][15][16] Consequently, developing the highly efficient heterogeneous photo-Fenton catalysts with low cost and good stability is essential and urgently needed.…”