A comprehensive review on BPA degradation by heterogeneous Fenton-like processes

Synthetic organic pollutants emanating continuously in the ecosystem have become a global concern because of their toxicity and persistent nature. Bisphenol A (BPA) is one such pollutant which threatens public health and safety. It is a monomer used in manufacturing plastics, polycarbonate resins, epoxy resins and is a well-recognised endocrine disruptor mimicking estrogen. BPA leaches into food and beverages stored in containers causing contamination issues. Its widespread exposure and potential toxicity is an environmental health concern. In this review, a systematic investigation has been carried out on the heterogeneous catalysts used for Fenton-like processes for BPA degradation. The Fenton-like reaction is one such reaction that is used for wastewater remediation purposes. The reaction advances through the generation of powerful oxidizing radicals like center dot OH and SO4 center dot- in the presence of a suitable catalyst. The application of various Fenton catalysts, with their distinguished morphological characteristics, oxidizing properties, toxicity analysis, and the present state of the art of BPA degradation by these catalysts, have been documented in the current work. This review also highlights a few challenges and prospects for analysing degradation products of landfill leachate.

Automated summary

Continuous release of synthetic organic pollutants in the ecosystem, such as Bisphenol A (BPA), poses a global concern due to their toxicity and persistent nature. This review focuses on the investigation of heterogeneous catalysts used for the degradation of BPA through Fenton-like reactions, which are commonly employed for wastewater remediation. The review documents the application of various Fenton catalysts, their morphological characteristics, oxidizing properties, toxicity analysis, and the current state of BPA degradation. Challenges and prospects for analyzing degradation products of landfill leachate are also highlighted.