Solar-photocatalysis exhibits promising potentials in the realm of biomedical waste
management. Herein, MoSx-modified ZnCdS was synthesis and used to treat biomedical
wastewater containing tetracycline (TC), a representative pharmaceutical compound which is
highly recalcitrant against traditional treatments. Significantly, both ZnCdS synthesis and its
following MoSx-modification were performed under ambient condition, with the latter assisted
by visible light irradiation. Characterization results confirmed the success deposition of MoSx
on ZnCdS, despite its indiscernible morphology changes. This indicates an even MoSx
dispersion on ZnCdS, inducing improved optical properties over their ample interfacial
contacts. With merely 2wt% MoSx-deposition, ZnCdS enables an augmented photocatalytic
activity with 50% TC degradation, as compared to 38% of pristine ZnCdS, under visible light
irradiation. This could be associated to the conductive feature of MoSx, which promoted spatial
charges separation in the composite sample. Current study provides important insights,
particularly to practitioners who wish to employ photocatalysis for biomedical wastewater
treatment.