biostudies-literatureUnknown10(45)Parangusan HQatar UniversityPolyaniline (PANI)/Cu-ZnS composites with porous microspheres are prepared by a hydrothermal and <i>in situ</i> polymerization method. The structural, optical, and morphological properties are characterized by X-ray powder diffraction, FTIR, UV-vis, scanning electron microscope, transmission electron microscope. The XRD results confirmed that the PANI/Cu-ZnS composite is formed. The morphological analyses exhibited that the PANI/Cu-ZnS composite comprises the porous microspherical structures. The emission peaks obtained in photoluminescence spectra confirm the presence of surface defects in the prepared composite. The UV-DRS study shows that the bandgap of the samples is found to decrease for the PANI/Cu-ZnS composite compared to the pure Cu-ZnS sample. The calculated band gap (<i>E</i> <sRSC advances26604-26612https://www.ebi.ac.uk/biostudies/studies/S-EPMC9055402biostudies-literatureInvestigation of the structural, optical and gas sensing properties of PANI coated Cu-ZnS microsphere composite.PMC9055402Bhadra JAl-Thani NParangusan HTouati FAhmad ZMallick SfalseInvestigation of the structural, optical and gas sensing properties of PANI coated Cu-ZnS microsphere composite.Polyaniline (PANI)/Cu-ZnS composites with porous microspheres are prepared by a hydrothermal and <i>in situ</i> polymerization method. The structural, optical, and morphological properties are characterized by X-ray powder diffraction, FTIR, UV-vis, scanning electron microscope, transmission electron microscope. The XRD results confirmed that the PANI/Cu-ZnS composite is formed. The morphological analyses exhibited that the PANI/Cu-ZnS composite comprises the porous microspherical structures. The emission peaks obtained in photoluminescence spectra confirm the presence of surface defects in the prepared composite. The UV-DRS study shows that the bandgap of the samples is found to decrease for the PANI/Cu-ZnS composite compared to the pure Cu-ZnS sample. The calculated band gap (<i>E</i> <s2020-01-01T00:00:00Z2020 Jul2025-04-22T07:45:03.175Z2025-04-05T22:18:32.238ZS-EPMC90554023551581210.1039/d0ra04991c