New Trends in Heterojunction Photocatalysts

Dear Colleagues,

Heterojunction photocatalysts have emerged as a pivotal research focus in advanced materials science, offering unprecedented opportunities for addressing global challenges in energy conversion, environmental sustainability, and pollutant remediation. By integrating two or more semiconducting materials with tailored band structures, heterojunctions efficiently promote the separation and transfer of photoinduced charge carriers, thereby overcoming the intrinsic limitations of single-component photocatalysts, such as rapid electron–hole recombination and narrow light absorption ranges. Recent years have witnessed re-markable advancements in this field, including the development of novel heterojunction architectures (e.g., Z-scheme, S-scheme, p-n junction), the exploration of earth-abundant and non-toxic constituent materials, and the optimization of synthesis strategies for enhanced catalytic activity and stability.

From fundamental mechanistic studies to practical applications in hydrogen evolution, CO₂ reduction, pollutant degradation, and antimicrobial treatments, heterojunction photocatalysts continue to expand their scope of influence. This Special Issue aims to capture the latest research trends, innovative methodologies, and breakthrough findings in the design, fabrication, characterization, and application of heterojunction photocatalysts.

This Special Issue welcomes original research articles and comprehensive review papers that shed light on structure–activity relationships, charge transfer mechanisms, performance optimization strategies, and scalable production technologies, as well as emerging applications in energy and environmental sectors.

Dr. Cong Wang
Guest Editor

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