4.7 Article

Fabrication of Ag@SrTiO3/g-C3N4 heterojunctions for H2 production and the degradation of pesticides under visible light

Journal

SEPARATION AND PURIFICATION TECHNOLOGY
Volume 297, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.seppur.2022.121431

Keywords

Photocatalyst; H-2-production; Pesticide; RT-FS; Mott-Schottky plot

Funding

  1. King Saud University, Riyadh, Saudi Arabia [RSP-2021/6]

Ask authors/readers for more resources

In this study, Ag-doped STO/g-CN heterojunctions were fabricated and characterized for their photo-electrochemical performance and photocatalytic activity. The results demonstrated that the nanocomposites exhibit excellent photocatalytic activity, with high degradation efficiency for Dicofol, and good reusability after multiple cycles.
In the present study, we have fabricated Ag-doped STO/g-CN heterojunctions and the fabricated heterostructure was characterized. The photo-electrochemical performance including PL, photocurrent, (EIS), and TR-FS were also determined. The fabricated nanocomposites were used for the photocatalytic hydrogen production and degradation of the pesticide, Dicofol. Photocatalytic properties (bandgap), band potentials (E-VB and E-CB), and band structures were determined using Mott-Schottky and DSR study. The hydrogen production rate of Ag(3) STO/g-CN was found to be 645.62 mu mol.g(-1)h(-1) which is about 2 times higher than that of pristine STO/g-CN. The formed intermediates and catalytic mechanism for the degradation of Dicofol have supported DFT calculation and LC-MS spectra. The results revealed that the fabricated nanocomposites exhibit ultrafast photocatalytic activity and about 92.2 % degradation was noticed within 60 min. The reusability was carried out and the photocatalyst retains its catalytic activity about 95% after 6 cycles.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available