Comparative Study on Structuring and Photocatalytic Activity of Nano Titania Embossed with Organic Extracts

Several extensive research studies have explored the advantages of green templates in the synthesis of structure and morphology-controlled photocatalytic nanomaterials. This study compares the potential aspect of Zingiber rhizome Extract (ZE) and Tapioca Starch (TS) extract in modifying the surface and optical properties of Titania NanoParticles (TNP) synthesized by the sol-gel technique. The synthesized nanocatalysts were characterized using various physicochemical techniques. While zingiber extract promotes effectively favored the formation of dual anatase and rutile phases, tapioca extract ended with single anatase phase titania, which was examined for the degradation of Congo red in the presence of sunlight. The photo mineralization and recyclability of catalysts have been evaluated through Total Organic Content analysis. The easy recovery and reusability of biosynthesized nanocatalysts with good control over the grain size, enable them to be an implicit novel green template in the successful synthesis of photoactive mesoporous nano titania.