The contamination problem of organic pesticide atrazine(ATZ)in water has received much at-tention.An iron-based biochar material(Fe/BC)is prepared by high-temperature carbothermal reduc-tion method and activated permonosulfate(PMS)to degrade ATZ in water.Characterization results show that the Fe/BC800 material(reaction temperature of 800℃)is irregular in structure with a large number of zero-valent iron(Fe0)particles on the surface.Batch experiments show that Fe/BC800 could activate PMS more effectively to remove ATZ compared with Fe/BC700 and Fe/BC900,moderate PMS concentration is favourable for the removal of ATZ,the removal of ATZ is favourable under acidic and neutral condi-tions,and is inhibited in a strongly alkaline environment.It provides a theoretical basis for the develop-ment of advanced oxidation technology and the efficient removal of ATZ.
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