Solar-Driven Hydrogen Peroxide Production via BiVO₄-Based Photocatalysts.

Area of Science:

• Materials Science
• Photocatalysis
• Green Chemistry

Background:

• Solar hydrogen peroxide (H2O2) production is a sustainable and eco-friendly alternative to traditional methods.
• Bismuth vanadate (BiVO4) is a key oxide semiconductor for visible-light-driven H2O2 synthesis via oxygen reduction and water oxidation.
• Significant progress has been made in BiVO4-based materials for solar H2O2 generation over the past decade.

Purpose of the Study:

• To review advancements in BiVO4-based photocatalysts for solar H2O2 production.
• To focus on photocatalytic powder suspension (PS) and photoelectrochemical (PEC) systems for heterogeneous artificial photosynthesis.
• To provide insights into strategies for enhancing H2O2 generation and discuss future prospects.

Main Methods:

• Review of literature on BiVO4-based photocatalysts for H2O2 production.
• Analysis of photocatalytic powder suspension (PS) and photoelectrochemical (PEC) systems.
• Examination of strategies including heterojunction, doping, crystal facet engineering, cocatalyst loading, and surface passivation.

Main Results:

• BiVO4-based materials have shown significant progress in solar H2O2 production.
• Various strategies effectively enhance H2O2 generation in both PS and PEC systems.
• Understanding the implementation of these strategies in different systems is crucial for optimization.

Conclusions:

• BiVO4 is a promising material for efficient solar H2O2 production.
• Further research into rational design of BiVO4 photocatalysts and photoelectrodes is needed.
• Continued development of PS and PEC systems will advance artificial photosynthesis for H2O2 generation.