Front cover

Key Points

• The aim is to evaluate how iron vacancies improve the water purification efficiency of Fe3O4/mesoporous carbon.
• Synthesis of Fe3O4/mesoporous carbon from biogas slurry
• Assessment of water purification capabilities
• Comparison of materials with and without iron vacancies
• Iron vacancies significantly enhance the adsorption capacity for pollutants.
• The modified material shows improved efficiency in removing contaminants from water.
• Overall performance in water purification is markedly better with iron vacancies present.