Novel synthesis of LaNiSbWO4-G-PANI Designed as Quaternary Type Composite for High Photocatalytic Performance of Anionic Dye and Trihydroxybenzoic acid under Visible-Light

Abstract

In this study, we describe the special properties of LaNiSbWO4-G-PANI (LNSWGP) polymer composites with exploited interfacial coupling and their use as visible light photocatalysts. These quaternary composites are newly designed materials by easiest hydrothermal method. Thin graphene (G) sheets could completely cover LaNiSbWO4 (LNSW) with highly conductive polyaniline by means of an evaporation-induced hydrothermal process. The increased surface adsorption outcome of G, a huge improvement of the photoactivity of LNSW, has been proved by the degradation of anionic methylene orange (MO) and trihydroxybenzoic acid (a type of phenolic acid) upon the covering of polyaniline. The improved photocatalytic activity is recognized as developing from the well-defined LNSWGP interfaces, which considerably increase the charge-separation efficacy. The efficiency of degradation was obtained MO (85%) & trihydroxybenzoic acid (92%). Our study found that the photocatalytic performance of LNSWGP in the existence of polymer was better than that of any other composite in an aqueous medium. Considering its ease of preparation and excellent performance, LNSWGP could be a promising, competitive, and safe visible-light-driven photocatalyst in the field of battery separators, solar cells, and environmental remediation.