Removal of Phenol derivatives from water systems with the use of silver nanoparticles

Phenolic compounds and their derivatives represent a significant concern within the realm of water pollution, due to their pronounced toxicity, environmental persistence, and extensive utilization across industrial sectors. These pollutants emanate from a multitude of sources, including petrochemical industries, pharmaceutical production, and the manufacture of pesticides, thereby posing considerable threats to both aquatic ecosystems and human health. Conventional water treatment methodologies, encompassing biological degradation, adsorption, and chemical oxidation, frequently fall short in achieving complete elimination of these contaminants or may inadvertently generate secondary pollutants, thereby underscoring the need for the formulation of alternative treatments that are more effective and sustainable. Silver nanoparticles (AgNPs) have been recognized as an innovative material for the remediation of phenol and its derivatives, because of their high surface area, remarkable catalytic efficacy, and pronounced adsorption properties. The distinctive characteristics of AgNPs facilitate the efficient degradation and transformation of phenolic compounds through mechanisms such as adsorption, photocatalysis, and catalytic degradation redox reactions. Furthermore, the functionalization of AgNPs with stabilizing agents enhances their stability, selectivity, and reusability, thereby rendering them as a viable option for water purification. This article critically reviews recent progress in AgNP-based purification of waterbodies by removing phenols. Notable findings indicate that AgNPs substantially augment the rates of phenol degradation, with variables such as nanoparticle size, surface modifications, and prevailing environmental conditions playing pivotal roles in their operational efficiency. Nevertheless, challenges pertaining to nanoparticle aggregation, potential environmental toxicity, and the feasibility of large-scale application require further exploration. Future research should prioritize eco-friendly synthesis or green synthesis methodologies, enhanced recovery techniques, and the mitigation of potential risks linked to nanoparticle discharge.