%0 Journal Article
%@ 21680485
%A Samsudin, M.F.R.
%A Ullah, H.
%A Bashiri, R.
%A Mohamed, N.M.
%A Sufian, S.
%A Ng, Y.H.
%D 2020
%F scholars:12988
%I American Chemical Society
%J ACS Sustainable Chemistry and Engineering
%K 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
%N 25
%P 9393-9403
%R 10.1021/acssuschemeng.0c02063
%T Experimental and DFT Insights on Microflower g-C3N4/BiVO4Photocatalyst for Enhanced Photoelectrochemical Hydrogen Generation from Lake Water
%U https://khub.utp.edu.my/scholars/12988/
%V 8
%X 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 © 2020 American Chemical Society.
%Z cited By 58