Abstract
The outstanding optoelectronic performance and facile synthetic approach of metal halide perovskites has inspired additional applications well beyond efficient solar cells and light emitting diodes (LEDs). Herein, we present an alternative option available for the optimisation of selective and efficient oxidation of benzylic alcohols through photocatalysis. The materials engineering of hybrids based on formamidine lead bromide (FAPbBr3) and graphic carbon nitride (g-C3N4) is achieved via facile anti-solvent approach. The photocatalytic performance of the hybrids is highly reliant on weight ratio between FAPbBr3 and g-C3N4. Besides, the presence of g-C3N4 dramatically enhances the long-term stability of the hybrids, compared to metal oxides hybrids. Detailed optical, electrical and thermal studies reveal the proposed novel photocatalytic and stability behaviours arising in FAPbBr3 and g-C3N4 hybrid materials.
Highlights
Oxidation of Benzyl Alcohol.As a promising family of semiconductor materials, organic–inorganic halide perovskites (OIHPs) have attracted massive attentions attributing to their potential applications in optoelectronic field
FAPbBr3 /C3 N4 samples prepared using modified anti-solvent method are confirmed by scanning electron microscopy (SEM), as it is shown in Figure S2a, the average size of
A hybrid photocatalyst formed by g-C3 N4 and FAPbBr3 is developed for highly stable and aefficient oxidation of benzylic aldehydes, In summary, hybridphotocatalytic photocatalyst formed by g-C3alcohol
Summary
As a promising family of semiconductor materials, organic–inorganic halide perovskites (OIHPs) have attracted massive attentions attributing to their potential applications in optoelectronic field This can be summarised as several advantages of OIHPs over other typical semiconductor materials, including tunable band gap energy, low-cost and facile synthesising [1]. The instability nature of OIHPs generally limits their utilisations in typical photocatalytic processes including water splitting, CO2 reduction and degradation of organic pollutants. These limitations were commonly solved by using an oversaturated aqueous HX solution (X is depending on the halide ion in OIHPs) as sacrificial reagent, extended their applications to reduction of CO2 and oxidation of PEDOT [12]. The photostability behaviour, optical, photochemical and thermal properties of FAPbBr3 /C3 N4 hybrids are demonstrated with details
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