Current research is paying much attention to heterojunction nanostructures. Owing to its versatile characteristics such as stimulating morphology, affluent surface-oxygen-vacancies and chemical compositions for enhanced generation of reactive oxygen species. Herein, we report the hydrothermally synthesized TiO2@MoS2 heterojunction nanostructure for the effective production of photoinduced charge carriers to enhance the photocatalytic capability. XRD analysis illustrated the crystalline size of CTAB capped TiO2, MoS2@TiO2 and L-Cysteine capped MoS2@TiO2 as 12.6, 11.7 and 10.2 nm, respectively. The bandgap of the samples analyzed by UV–Visible spectroscopy are 3.57, 3.66 and 3.94 eV. PL spectra of anatase phase titania shows the peaks present at and above 400 nm are ascribed to the defects in the crystalline structure in the form of oxygen vacancies. HRTEM reveals the existence of hexagonal layered MoS2 formation on the spherical shaped TiO2 nanoparticles at the interface. X-ray photoelectron spectroscopy recommends the chemical interactions between MoS2 and TiO2, specifically, oxygen vacancies. In addition, the electrochemical impedance spectroscopy studies observed that L-MT sample performed low charge transfer resistance (336.7 Ω cm2) that promotes the migration of electrons and interfacial charge separation. The photocatalytic performance is evaluated by quantifying the rate of Congo red dye degradation under visible light irradiation, and the decomposition efficiency was found to be 97%. The electron trapping recombination and plausible photocatalytic mechanism are also explored, and the reported work could be an excellent complement for industrial wastewater treatment.

The rutile TiO2 of nanoparticles and microrods were simultaneously grown on FTO glass slide using a one-step hydrothermal process. CdS semiconducting nanocrystals were deposited on the surface of TiO2 surface using SILAR method. Moreover, the SEM micrograph studies, TiO2 nanorods were almost uniformly explored on FTO glass slide pattern. The photovoltaic performances, as-prepared semiconductor sensitized solar cells (SSSCs) were studied and the maximum efficiency of FTO/TiO2/CdS-8/ZnS-2 sample was 0.78% were confirmed by sun solar simulator, overall the solar cell efficiency was determined with an increasing pattern of CdS deposition is reported in detail. Contribution/ Originality: In this work, contribute to the development of Ti02 unidirectional growth nanorods on FTO glass slide and its act as a photoanode was prepared hydrothermal method. The semiconductor (CdS) quantum dots were prepared using SILAR method. These quantum dots acts as dye molecule for the fabrication solarcell. In the present studies gives an idea of semiconductor sensitized solar cells (SSSCs).