Sucrose-templated nanoporous BiFeO<sub>3</sub> for promising magnetically recoverable multifunctional environment-purifying applications: adsorption and photocatalysis

We present two new synthetic routes for bismuth ferrite harmonic nanoparticles (BiFeO3 HNPs). Both phase-pure and mixed phase BiFeO3 materials were produced after improvement of the solvent evaporation and sol-gel combustion routes. Metal nitrates with a series of dicarboxylic acids (tartronic, tartaric and mucic) were used to promote crystallization. We found that the longer the carbon backbone with a hydroxyl group attached to each carbon, the lower the annealing temperature. We also demonstrate that nanocrystals more readily formed at a given temperature by adding glycerol but to the detriment of phase purity, whereas addition of NaCl in excess with mucic acid promotes the formation of phase-pure, monocrystalline nanoparticles. This effect was possibly associated with a better dispersion of the primary amorphous precursors and formation of intermediate complexes. The nanoparticles have been characterized by XRD, TEM, ζ-potential, photon correlation spectroscopy, two-photon microscopy and Hyper-Rayleigh Scattering measurements. The improved crystallization leads to BiFeO3 HNPs without defect-induced luminescence and with a very high averaged second harmonic efficiency (220 pm/V), almost triple the efficiency previously reported. This development of simple, scalable synthesis routes which yield phase-pure and, crucially, monocrystalline BiFeO3 HNPs demonstrates a significant advance in engineering the properties of nanocrystals for bio-imaging and diagnostics applications.

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Sucrose-templated nanoporous BiFeO₃ for promising magnetically recoverable multifunctional environment-purifying applications: adsorption and photocatalysis

Cited by 4 publications

References 43 publications

Magnetic materials for photocatalytic applications—a review

Magnetic materials for photocatalytic applications—a review

Synthesis of doped and undoped Bi1-xMxFeO3 porous networks (M = La, Gd, Nd; x = 0, 0.03, 0.05, 0.10) with enhanced visible-light photocatalytic activity

Preparation from a revisited wet chemical route of phase-pure, monocrystalline and SHG-efficient BiFeO3 nanoparticles for harmonic bio-imaging

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Sucrose-templated nanoporous BiFeO3 for promising magnetically recoverable multifunctional environment-purifying applications: adsorption and photocatalysis

Cited by 4 publications

References 43 publications

Magnetic materials for photocatalytic applications—a review

Magnetic materials for photocatalytic applications—a review

Synthesis of doped and undoped Bi1-xMxFeO3 porous networks (M = La, Gd, Nd; x = 0, 0.03, 0.05, 0.10) with enhanced visible-light photocatalytic activity

Preparation from a revisited wet chemical route of phase-pure, monocrystalline and SHG-efficient BiFeO3 nanoparticles for harmonic bio-imaging

Contact Info

Product

Resources

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Sucrose-templated nanoporous BiFeO₃ for promising magnetically recoverable multifunctional environment-purifying applications: adsorption and photocatalysis

Synthesis of doped and undoped Bi1-xMxFeO3 porous networks (M = La, Gd, Nd; x = 0, 0.03, 0.05, 0.10) with enhanced visible-light photocatalytic activity