Synthesis of nanoscale zero-valent iron doped carbonized zeolitic imidazolate framework-8 for methylene blue removal in water

Abstract Nanoscale zero-valent iron-doped carbonized zeolitic imidazolate framework-8 (nZVI/CZIF-8) was prepared by carbonation of ferric nitrate and ZIF-8 at 800 °C used as an adsorbent to remove methylene blue (MB) from water. The synthesized nZVI/CZIF-8 has a specific surface area 806.9 m2/g, pore volume 0.86 cm 3 /g nZVI content 1.35%, respectively. Both the CZIF-8 have identical functional groups O-H, C-H C=C. With increase size, MB removal rate increased. doping increased percentage 74.5% for 96.2% within 80 min nZVI/CZIF-8. with dosage adsorption adsorbents conforms Freundlich isothermal model fitted well pseudo-first-order model. results demonstrate feasibility synthesizing high active stable particles.