Synthesis and characterization of Mo-doped PbS thin films for enhancing the photocatalytic hydrogen production

Ibrahim, Mohamed; Zayed, Mohamed; Ahmed, Ashour M.; Ghanem, Mohamed A.; Shaban, Mohamed; Abd Elkhalik, S.; Mohamed, Fatma

doi:10.1016/j.matchemphys.2024.128962

Cited by 7 publications

(1 citation statement)

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“…Among these alternatives, hydrogen (H 2 ) energy emerges as particularly promising, boasting advantages such as efficient combustion, abundant availability irrespective of fossil fuels, high energy content, lack of pollution, and superior efficiency. However, achieving environmentally friendly, user-friendly, and economically feasible hydrogen production remains a formidable challenge [1,2]. Photocatalytic materials have emerged as promising contenders for hydrogen generation through light-driven processes [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Harvesting Vibration Energy for Efficient Cocatalyst-Free Sonocatalytic H2 Production over Magnetically Separable Ultra-Low-Cost Fe3O4

Zhang,

Sun,

et al. 2024

Materials

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The cavitation effect is an important geochemical phenomenon, which generally exists under strong hydrodynamic conditions. Therefore, developing an economical and effective sonocatalyst becomes a vital method in capitalizing on the cavitation effect for energy generation. In this study, we first report a novel Fe3O4 sonocatalyst that can be easily separated using a magnetic field and does not require any additional cocatalysts for H2 production from H2O. When subjected to ultrasonic vibration, this catalyst achieves an impressive H2 production rate of up to 175 μmol/h/USD (where USD stands for dollars), surpassing most previously reported mechanical catalytic materials. Furthermore, the ease and efficiency of separating this catalyst using an external magnetic field, coupled with its effortless recovery, highlight its significant potential for practical applications. By addressing the key limitations of conventional sonocatalysts, our study not only demonstrates the feasibility of using Fe3O4 as a highly efficient sonocatalyst but also showcases the exciting possibility of using a new class of magnetically separable sonocatalysts to productively transform mechanical energy into chemical energy.

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