Work

Synergistic Enhancement of Photocatalytic H2O2 Production over Carbon Nitride Oxide/Biochar Composites

Year: 2025

Type: article

Abstract: The green synthesis of hydrogen peroxide (H2O2) is crucial for sustainable chemical production, but pristine graphitic carbon nitride (g-C3N4) suffers from low H2O2 yield owing to limited visible light absorption and swift charge recombination. Herein, a novel metal-free carbon nitride oxide/biochar photocatalytic system (CNO-B) was developed via a simple low-temperature calcination without post-treatment. The synergistic effect of carbonyl functionalization and biochar integration significantly enhanced light harvesting capabilities and charge carrier separation efficiency, achieving an exceptional H2O2 production rate of 2483 μmol g−1 h−1 upon irradiation (five times higher compared with pure g-C3N4). This work provides valuable insights into minimalist synthesis strategies for designing functional materials and demonstrates a practical approach for valorizing biomass waste in sustainable photocatalytic applications.

Source: Molecules

DOI: 10.3390/molecules30224323

Authors: Ruolin Cheng, Yue Wang, Shijian Lu

Institution: China University of Mining and Technology

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Responsible consumption and production, Affordable and clean energy, Climate action

Open Access status: gold

Estimated APC paid: $3,258