Synthesis of NaP1 zeolite molecular sieve and its adsorption of methylene blue
NaP1 Zeolite molecular sieve was prepared from fly ash by alkali melting-hydrothermal synthe-sis method.In this process,Si-Al ratio,crystallization temperature and crystallization time have important effects on the synthesis of zeolite molecular sieve.The results show that the optimum conditions for synthe-sizing NaP1 zeolite with high purity are Si-Al ratio of 1.5,crystallization temperature of 110℃and crys-tallization time of 14 h.Afterwards,the phase and morphology characteristics of the synthesized products were characterized.The adsorption performance of NaP1 zeolite on methylene blue(MB)was studied to explore the effects of adsorption temperature,adsorption time,initial concentration of dye and amount of adsorbent on adsorption efficiency.Under the conditions of adsorption temperature 20℃,adsorption time 40 min,initial concentration of dye 100 mg/L and dosage of adsorbent 0.5 g/L,NaP1 zeolite has the best adsorption efficiency for MB in wastewater.
fly ashzeolite molecular sieverepresentationadsorbentmethylene blue
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