@article{scholars12988, title = {Experimental and DFT Insights on Microflower g-C3N4/BiVO4Photocatalyst for Enhanced Photoelectrochemical Hydrogen Generation from Lake Water}, doi = {10.1021/acssuschemeng.0c02063}, note = {cited By 58}, volume = {8}, number = {25}, pages = {9393--9403}, publisher = {American Chemical Society}, journal = {ACS Sustainable Chemistry and Engineering}, year = {2020}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85090242080&doi=10.1021\%2facssuschemeng.0c02063&partnerID=40&md5=12b9483e05b9eee9ac51891fadf32659}, keywords = {Charge carriers; Crystallinity; Density functional theory; Electric fields; Lakes; Optical properties, Built-in electric fields; Carrier recombination; Photocurrent density; Photoelectrocatalytic; Photoelectrocatalytic activities; Photoelectrochemical hydrogen; Sacrificial reagent; Solar Hydrogen Production, Hydrogen production}, abstract = {Herein, an experimental and density functional theory (DFT) analysis of the composite g-C3N4/BiVO4 microflower photocatalysts are comprehensively discussed. A remarkable photoelectrocatalytic solar hydrogen production has been observed for the as-developed photocatalysts, with different loading amounts of g-C3N4 (0.1, 0.4, 0.8, and 1.2 wt ), using lake water without the addition of sacrificial reagents. The 0.8 wt g-C3N4/BiVO4 microflower photocatalyst evinced remarkable photoelectrocatalytic activity of 21.4 mmol/h of hydrogen generated in comparison to other samples with an AQE of 4.27 at 420 nm. In addition, the photocurrent density of 0.8 wt g-C3N4/BiVO4 microflower was 2-fold higher than that of pure BiVO4. This was attributed to its better crystallinity and optical properties, confirmed from XRD and DR-UV-vis analysis. The DFT analysis further corroborated that the efficient photocharge carrier separation and limited photocharge carrier recombination corresponded to the synergistic effect of the band offset and built-in electric field. Copyright {\^A}{\copyright} 2020 American Chemical Society.}, author = {Samsudin, M. F. R. and Ullah, H. and Bashiri, R. and Mohamed, N. M. and Sufian, S. and Ng, Y. H.}, issn = {21680485} }