fig3

Figure 3. (A) The summary of typical piezocatalytic materials design and modification strategies for H₂ production. (B) Piezocatalytic mechanism for H₂ production of the deformed BaTiO₃ crystals. This figure is quoted with permission^[76]. (C and D) Piezocatalytic mechanism for H₂ production in Ti₃C₂T_x/Bi₂WO₆ and Gibbs free energy changes of intermediate states involved in HER processes. This figure is quoted with permission^[77]. (E) A schematic illustration of piezo-photocatalysis mechanism with the different directions of polarization for BiFeO₃@TpPa-1-COF Z-scheme heterojunction. This figure is quoted with permission^[86]. (F) The designed cyclonic piezocatalytic reactor using MoS₂/Fe⁰/PMS ternary system for achieving substantial H₂ generation from various types of wastewater. This figure is quoted with permission^[91].