The enhanced photocatalytic activity of g-C3N4-LaFeO3 for the water reduction reaction through a mediator free Z-scheme mechanism

被引：104

作者：

Acharya, S. ^{[1
]}

Mansingh, S. ^{[1
]}

Parida, K. M. ^{[1
]}

机构：

[1] SOA Univ, Ctr Nano Sci & Nano Technol, Bhubaneswar 751030, Orissa, India

来源：

INORGANIC CHEMISTRY FRONTIERS | 2017年 / 4卷 / 06期

关键词：

GRAPHITIC CARBON NITRIDE; VISIBLE-LIGHT; G-C3N4; HETEROSTRUCTURES; CONSTRUCTION; CO2;

D O I：

10.1039/c7qi00115k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Herein, we disclosed the g-C3N4/LaFeO3 nanocomposite photocatatalyst, 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-C3N4/LaFeO3 nanocomposite was effectively fabricated, with reliable interfacial interactions and a good heterojunction interaction between g-C3N4 and LaFeO3, which can considerably enhance the photocatalytic activity as compared to pristine g-C3N4 and LaFeO3. The high HER (1152 mu mol h(-1) g(-1)) was also confirmed by the PL spectra, Mott-Schottky plot, electrochemical impedance spectroscopy (EIS), and solid-solid interfacial interactions.

引用

页码：1022 / 1032

页数：11

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