Recent Advancement in Piezopolarization Induced Photocatalytic H<sub>2</sub>O<sub>2</sub> Production: Fundamentals, Theoretical Insights, and Future Endeavors
Sriram Mansingh, Newmoon Priyadarshini, Jayashree Panda, Kundan Kumar Das, Dipti Prava Sahoo, Jyotirmayee Sahu, Deeptimayee Prusty, Rasan Kumar Giri, Anshumika Mishra, Kulamani Parida
Abstract
Currently, piezopolarization-driven photocatalysis has emerged as a promising sustainable technology for proficient solar-to-chemical conversion efficiency. The piezoelectric field generated by mechanical deformation was found to be an effective strategy for energy band modulation alongside effective separation/transfer of carriers. This review summarizes the fundamentals of piezopotential-based catalysis, particularly for piezo-photocatalysis and the associated H 2 O 2 production. This review also describes the detailed piezo-operational mechanism, peroxide formation pathway, and different detection/quantification techniques. Further, we have thoroughly discussed the theoretical insights of piezopolarization referring to suitable reported literature. We have also discussed several recently reported state-of-the-art systems on piezo-photocatalytic H 2 O 2 evolution reactions. Finally, the summary and future prospective section highlights the connected challenges and insightful new ideas for the scientific community to completely comprehend the science of piezo-photocatalysis and develop efficient systems for green energy and environmental applications.