Improved decolorization of MB using CeCoO3/PbS heterojunction as a superior‐excellent photocatalyst

Developing effective and inexpensive photocatalysts is considered a helpful approach to pollution degradation. Herein, CeCoO 3 /PbS photocatalyst was synthesized via the hydrothermal procedure and described by XRD, IR, SEM, EDS, PL, and DRS analyses. The results revealed the deposition of PbS on the CeCoO 3 surface, as illustrated by the FE‐SEM images. The influence of photocatalyst dosage, temperature, electron acceptor, and pH toward the decolorization of MB under the irradiation of a UV lamp was considered. By CeCoO 3 /PbS photocatalyst, the conversion percentage achieved 98% within 10 min, around two times more than pure CeCoO 3 and PbS. According to the experimental and calculated results, the Type‐II heterojunction formation was observed, which boosted the photoactivity of CeCoO 3 /PbS by its higher charge separation rate compared with perovskite and PbS and the stronger redox capability of charges. In addition, CeCoO 3 /PbS nanocomposites have impressive stability and efficiency after five cycles of experiments. Consequently, the coupling of CeCoO 3 with PbS provides a favorable pathway to remove contamination.