g-C3N4-Based 2D/2D Composite Heterojunction Photocatalyst

Coupled adsorption and photocatalysis of g-C3N4 based composites: Material synthesis, mechanism, and environmental applications

Advances in 2D/2D Z-Scheme Heterojunctions for Photocatalytic Applications

Semiconductor photocatalysis has a great prospect in solving the problems of environmental pollution. Herein, the thickness-dependent BiOIO3 loaded by carbon quantum dots (CQDs/BiOIO3) was first synthesized. The 3 wt% CQDs/BiOIO3 with sheet-like morphology exhibited the highest efficiency of 95.01 % for the photodegradation of bisphenol A after 60 min. The outstanding photocatalytic activity was ascribed to two aspects: the first was the efficient separation of photogenic e−-h+ in thin layered BiOIO3 (50 nm); the second was the acceleration of charge transfer and the extension of light absorption after the CQDs co-catalysis. The h+ and O2− were dominant active species in the degradation process and possible mechanism was deeply studied. The attacked sites of bisphenol A were ascertained by Fukui index and the degradation pathways were proposed through the LC–MS analysis. This work significantly deepens the understanding of layered bismuth-based material and provides ideas for the design of high-performance catalysts.

Thickness-dependent layered BiOIO3 modified with carbon quantum dots for photodegradation of bisphenol A: Mechanism, pathways and DFT calculation

Nitrogen vacancy induced in situ g-C3N4 p-n homojunction for boosting visible light-driven hydrogen evolution.

We report an unique 2D/2D Iodine doped BiOIO3/g-C3N4 heterojunction was successfully prepared. The iodine doped BiOIO3 was prepared by a simple solvent exchange method and combined with g-C3N4 by solvothermal method. The prepared photocatalyst has potential application value in the future due to its excellent stable cycle property. BiOIO3 nanoplates and g-C3N4 nanosheets form a close interfacial contact directly, so the catalyst has higher charge transport efficiency and wide visible range due to the introduction of iodide ions. Synergistic heterojunction exhibits strong photocatalytic activity for degradation of NO at ppb-level under visible light, of which 30% Iodine doped BiOIO3/g-C3N4 can achieve a maximum removal rate of 57% for NO. According to the experimental results of ESR and other experiments, a more complex Z-scheme photocatalytic mechanism is proposed, which has stronger redox ability than the traditional mechanism.

Z-scheme photocatalytic NO removal on a 2D/2D iodine doped BiOIO3/g-C3N4 under visible-light irradiation.

A unique Prussian blue analog-derived three-dimensional (3D) hollow Ni–Co bimetal oxide compound supported on two-dimensional (2D) g-C3N4 nanosheets was successfully prepared using a low-temperatur

Enhanced Photocatalytic Oxidation of Nitric Oxide to MOF-derived Hollow Bimetallic Oxide Microcubes Supported on g-C3N4 Nanosheets via p–n Heterojunction

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Z-scheme photocatalytic NO removal on a 2D/2D iodine doped BiOIO3/g-C3N4 under visible-light irradiation.

Enhanced Photocatalytic Oxidation of Nitric Oxide to MOF-derived Hollow Bimetallic Oxide Microcubes Supported on g-C3N4 Nanosheets via p–n Heterojunction