<p>The SrNiO₃ based inorganic based semiconducting material SrNiO₃/rGO (reduced graphene oxide) is undoubtedly privileged for a new class of materials. The identification of novel materials has involved the tremendous fundamental scenarios, the improvement in the composite assemblies and the engagement in scientific interest with promising photocatalytic applications. The designed SrNiO₃ and SrNiO₃/rGO nanomaterials were used as a hydrothermal method, and were studied in remarkable morphological, and optical properties. The SrNiO₃/rGO nanomaterial detected bandgap energies at 2.6&#xa0;eV to 2.0&#xa0;eV, respectively. These materials were shown to be the plant seeds/shells, and the layer shapes of the morphologies were obtained from FESEM techniques. Moreover, FTIR results indicate the Sr-O and Ni-O functional groups. However, the synthesized material’s elemental confirmation and oxidation states are examined by XPS measurements. Further SEM mapping and EDX investigation also strongly clarified the elemental formation. Besides, it illustrates successful materials composition, active surface defects and implementation also elaborated for different organic pollutants like methylene blue (MB), impressively showing higher photocatalytic degradation efficiency. Mainly, these SrNiO₃ and SrNiO₃/rGO catalysts contributed to a photocatalytic efficiency is 49.7% and 79% for 110&#xa0;min. Additionally, the scavenger analysis has been accomplished in ·OH, e¯, and h⁺ species. Specifically, Ag(NO₃) has been delivered to the active radical species for scavenger determinations. Besides, the proposed SrNiO₃/rGO material was examined for its well-known stability and reusability properties. Moreover, the surface defect properties of SrNiO₃/rGO nanocomposites are enhanced to the photocatalytic properties with favorable for synergistic conditions; simultaneously, all materials are greatly improved for pollutants degradations.</p>