Silicon carbide (SiC)-loaded graphene photocatalyst for hydrogen production under visible light irradiation and preparation thereof

US11969716B2 · kind B2 · utility

Assignee

• GUANGDONG UNIVERSITY OF TECHNOLOGY · CN

Inventors

• Yun Chen · 流花街道, CN
• Shengbao LAI · 流花街道, CN
• Biao Li · Changzhou City, CN
• Zuohui Liu · 流花街道, CN
• Guanhai Wen · 流花街道, CN
• Maoxiang HOU · 流花街道, CN
• Xin Chen · Tangxia, CN

Key dates

• Filing date: Jun 21, 2023
• Grant date: Apr 30, 2024
• Expiry date: Jun 21, 2043

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/133
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

This application discloses a silicon carbide (SiC)-loaded graphene photocatalyst for hydrogen production under visible light irradiation and a preparation method thereof. Pure SiC and pure black carbon are respectively prepared and mixed to obtain a mixture with a resistance less than 100Ω. Then the mixture was vacuumized and processed with a current pulse with an increasing voltage until a breakdown occurs, and subjected to ultrasonic stirring, centrifugal washing and vacuum drying in turn to obtain the SiC-loaded graphene photocatalyst. By means of the current pulse, a heterojunction is formed between SiC and graphene to improve the catalytic activity of the photocatalyst; and the photocatalytic hydrogen production rate of SiC nanoparticles can be enhanced after loaded on the graphene.