With　the　increasing　severity　of　the　plastic　pollution　issue,　biodegradable　plastics　are　considered　a　critical　approach　to　addressing　plastic　pollution.　However,　the　aging　process　of　biodegradable　plastics　and　the　resulting　microplastics　adsorption　of　pollutants　in　the　environment　are　not　clearly　understood.　This　study　investigated　the　physicochemical　property　changes　of　different　microplastics　(Biodegradable　microplastics　and　non-biodegradable　microplastics)　during　aging,　examined　the　adsorption　processes　and　mechanisms　of　biodegradable　plastics　and　non-degradable　plastics　towards　typical　pollutants　in　the　environment,　and　elucidated　the　different　aging　mechanisms　and　adsorption　mechanisms　of　biodegradable　plastics　and　non-biodegradable　plastics.　The　experimental　results　indicated　that　compared　to　non-biodegradable　microplastics,　biodegradable　microplastics　are　more　prone　to　aging　in　the　environment,　forming　smaller　microplastic　particles　and　easier　adsorption　of　environmental　pollutants.　Biodegradable　microplastics　have　abundant　oxygen-containing　functional　groups　on　the　surface,　which　enhance　age　biodegradable　microplastics　adsorption　capacity　for　pollutants　through　electrostatic　interactions,　chelation,　and　hydrogen　bonding.　The　experimental　results　show　that　a　strong　oxidation　system　has　unique　advantages　in　the　aging　removal　of　biodegradable　microplastics　and　can　effectively　reduce　the　adsorption　equilibrium　capacity　of　biodegradable　microplastics.　This　research　contributes　to　a　deeper　understanding　of　biodegradable　microplastics’　aging　and　adsorption　behaviors　in　the　environment,　highlighting　their　significant　role　as　carriers　of　pollutants.　©　2024　Elsevier　B.V.