Preparation of Polysaccharide Modified PCN-224 Aerogel and its Adsorption Performance for Dyes in Wastewater
In this paper,PCN-224 with porous and high specific surface area was prepared and modified with polysaccharide gel to prepare composite materials with porous structure(PCN@H).The material was characterized using transmission electron microscopy(TEM),Fourier transform infrared spectroscopy(FT-IR),and nanolaser particle size analyzer(DLS).to analyze The adsorption performance of composite materials PCN@H was studied using UV Vis spectrophotometer.The performance of PCN@H removing dyes from water was tested.The material characterization results demonstrate that PCN-224 has a regular morphology and uniform size,and the modification of polysaccharides significantly improves the adsorption performance of PCN-224.The adsorption experiment showed that the removal efficiency of cationic dye methylene blue by PCN@H aerogel reached 85%,and the maximum adsorption capacity was 250 mg/g.The removal efficiency of anionic dye methyl orange by PCN@H aerogel reached 93%,and the maximum adsorption capacity was 274 mg/g.In summary,PCN@H has broad application prospects in the removal of dyes from wastewater.
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