Facile Synthesis of Strontium Tungstate/Polypyrrole Composite for the Photocatalytic Activity Towards the Degradation of Rhodamine B Dye and Phytotoxicity Assessment

In order to create effective photocatalytic systems, semiconducting materials that absorb light and start chemical reactions need to be used. Herein, SrWO4/PPy was synthesised by simple chemical method followed by In-situ chemical polymerization route. The as-synthesised materials were examined using various analytical as well as spectral assessment methods. The SrWO4/PPy composites achieved photocatalytic degradation efficiency of 97.62% for rhodamine B (RhB) dye under visible light in 60 min. The first-order kinetic constant of SrWO4/PPy (0.0163 min(- 1)) was 4.73 times greater than that of SrWO4. After four consecutive cycles, the SrWO4/PPy composite exhibits enhanced photostability. The scavenger study was conducted to examine the role of active species in photodegradation activity. The determination of reaction intermediates and the identification of possible oxidative routes for RhB were made possible by the use of LC-MS. Further phytotoxicity assessments were conducted with the degraded RhB dye sample, which demonstrated superior results compared to the untreated dye. The SrWO4/PPy composites were suitable for practical application due to their remarkable stability and reusable properties.