Publications by authors named "Xiangfu Xu"

Comprehending the structure and function of rhizobacteria components and their regulation are crucial for sustainable agricultural management. However, obtaining comprehensive species information for most bacteria in the natural environment, particularly rhizobacteria, presents a challenge using traditional culture methods. To obtain diverse and pure cultures of rhizobacteria, this study primarily reviews the evolution of rhizobacteria culturomics and associated culture methods.

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Most ferroelectric oxides exhibit relatively wide bandgaps, which pose limitations on their suitability for photovoltaics application. CuNbO possesses potential ferroelectric properties with an 3 polar structure that facilitate the separation of charge carriers under illumination, promoting the generation of photovoltaic effects. The optical and ferroelectric properties of 3-CuNbO, as well as the effect of strain on the properties are investigated by first-principles calculation in this paper.

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Polarized structured nitride semiconductors are attractive due to their unique and environment-friendly electronic properties. The stability, ferroelectricity and photocatalytic and photovoltaic properties of super-wurtzite MgXN (X = Bi, Mo, Nb, Sb, Ta, Tc and W) were determined based on first principles calculations in this study. The calculated results indicate that MgXN (X = Sb, Ta, Bi and Nb) are stable polar nitrides by phonon frequencies, elastic coefficients and ferroelectric analysis.

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Ferroelectric oxides with large bandgaps have restricted applications in photovoltaic and photocatalytic fields. Based on recent experiments with the ferroelectric compound, LiSbO, the stability and optoelectronic properties of a new ferroelectric compound, namely LiSbBiO, are investigated in this study. The calculated results demonstrate that LiSbBiO satisfies the stability conditions of the elastic coefficients and phonon dynamics.

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Materials with high ferroelectric polarization strength and sufficient absorption of visible light have unique advantages in photocatalysis. Based on the results of structure search, phonon frequency, and elasticity coefficient calculations, CaBiO has a stable 3 polar structure. First-principles calculations indicate that 3-CaBiO is a potentially efficient ferroelectric visible-light photocatalytic material for hydrogen production.

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