Dye decomposition by organo-inorganic catalytic nanocomposite materialbased on polyaniline (PANI) with Preyssler polyoxometalate

Organic dyes are important industrial materials and are used in different industries. Theextensive use of organic dyes and the indiscriminate disposal of dye-contaminated effluents cancause serious contamination of surface and groundwater[۱]. The dyes are toxic and pose a threatto human health, as they can cause mutagenesis, chromosomal fractures, carcinogenesis, andrespiratory toxicity[۲,۳]. Hence, many methods have been proposed to remove dyes from waterand wastewater These methods are mainly based on sorption and membrane segregation. But thementioned methods have disadvantages like high cost and time-consuming [۴]. The aim of thisstudy is dye decomposition by organo-inorganic catalytic nanocomposite. For this purpose, anorgano-inorganic catalytic nanocomposite material based on conjugated polymer, polyaniline(PANI) with Preyssler polyoxometalate was developed by performing in situ chemical oxidativepolymerization of aniline with ammonium persulfate (APS) oxidant synthesized. Then Thestructural and morphological properties of organo-inorganic PANI nanocomposites were analyzedby X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and Fouriertransform infrared spectroscopy (FT-IR), respectively. After that, the catalytic activities of thenanocomposites were evaluated by the catalytic degradation of Methylene Blue (MB) in differentconditions.