Herein,we disclosed the g-C_(3)N_(4)/LaFeO_(3) nanocomposite photocatalyst,a mediator-free direct Z-scheme photocatalytic system,prepared using a mechanical mixing method with reliable interfacial interactions. The na...Herein,we disclosed the g-C_(3)N_(4)/LaFeO_(3) nanocomposite photocatalyst,a mediator-free direct Z-scheme photocatalytic system,prepared using a mechanical mixing method with reliable interfacial interactions. The nanocomposite formation was determined by X-ray diffraction (XRD),transmission electron microscopy (TEM),and X-ray photoelectron spectroscopy (XPS). The optical properties of the nanohybrids were also characterized using UV-vis diffuse reflectance spectroscopy (DRS) and photoluminescence (PL) spectroscopy. The results clearly indicated that the g-C_(3)N_(4)/LaFeO_(3) nanocomposite was effectively fabricated,with reliable interfacial interactions and a good heterojunction interaction between g-C_(3)N_(4) and LaFeO_(3),which can considerably enhance the photocatalytic activity as compared to pristine g-C_(3)N_(4) and LaFeO_(3). The high HER (1152 μmol h^(−1) g^(−1)) was also confirmed by the PL spectra,Mott–Schottky plot,electrochemical impedance spectroscopy (EIS),and solid–solid interfacial interactions.展开更多
文摘Herein,we disclosed the g-C_(3)N_(4)/LaFeO_(3) nanocomposite photocatalyst,a mediator-free direct Z-scheme photocatalytic system,prepared using a mechanical mixing method with reliable interfacial interactions. The nanocomposite formation was determined by X-ray diffraction (XRD),transmission electron microscopy (TEM),and X-ray photoelectron spectroscopy (XPS). The optical properties of the nanohybrids were also characterized using UV-vis diffuse reflectance spectroscopy (DRS) and photoluminescence (PL) spectroscopy. The results clearly indicated that the g-C_(3)N_(4)/LaFeO_(3) nanocomposite was effectively fabricated,with reliable interfacial interactions and a good heterojunction interaction between g-C_(3)N_(4) and LaFeO_(3),which can considerably enhance the photocatalytic activity as compared to pristine g-C_(3)N_(4) and LaFeO_(3). The high HER (1152 μmol h^(−1) g^(−1)) was also confirmed by the PL spectra,Mott–Schottky plot,electrochemical impedance spectroscopy (EIS),and solid–solid interfacial interactions.
