Synthesis of Highly Efficient (0D/1D) Z-Scheme CdS-NPs@ZnO-NRs Visible-Light-Driven Photo(electro)catalyst for PEC Oxygen Evolution Reaction and Removal of Tetracycline

Herein, we synthesized the cadmium sulfide nanoparticles (CdS-NPs) coated zinc oxide nanorods (ZnO-NRs) core-shell like CdS-NPs@ZnO-NRs heterojunction for photo(electro)chemical applications. The CdS-NPs and ZnO-NRs were through a simple hydrothermal path. physicochemical optoelectronic properties of as-prepared catalysts are characterized by various spectroscopy techniques, such as FTIR, XRD, SEM, TEM, EDX, VB-XPS, DRS, PL. photocatalytic performances catalyst evaluated photodegradation tetracycline (TC) in aqueous media under visible-light irradiation, which demonstrated 94.07 % removal (k’ = 0.0307 min?1) within 90 min. On other hand, photoelectrochemical (PEC) water-oxidation/oxygen-evolution reaction (OER) was performed, resulted photocurrent density 3.002 mA/cm2 overpotential (at 2 mA/cm2) 171 mV (vs RHE) 1.0 M KOH AM 1.5G illumination. reactive species scavenging experiment demonstrates significant contributions photogenerated holes towards TC removal. Furthermore, Z-scheme exhibits high efficiency, recyclability, photostability, demonstrating that is robust photo(electro)catalyst PEC