多糖修饰PCN-224气凝胶的制备及对废水中染料吸附性能的研究
Preparation of Polysaccharide Modified PCN-224 Aerogel and its Adsorption Performance for Dyes in Wastewater
费诗羽 1胡亚男 1高诗特 1何鑫 1杨佳瑶 1于海璐 1王椿霖 1李忻航 1王艺霏 1郑晨阳 1李鑫雨1
作者信息
- 1. 沈阳科技学院化学化工系,辽宁 沈阳 110000
- 折叠
摘要
本文制备出具有多孔和高比表面积PCN-224 并将其用多糖凝胶修饰制备出具有多孔结构的复合材料(PCN@H).借助于透射电镜(TEM)、傅里叶红光谱(FT-IR)、纳米激光粒度仪(DLS)对材料进行表征.利用紫外分光光度计(UV-Vis)对复合材料PCN@H的吸附性能进行研究,测试了PCN@H去除水中染料的性能.材料表征结果证明,PCN-224 具有规则的形貌,尺寸均匀,多糖的修饰显著改善了PCN-224 的吸附性能.吸附实验表明,PCN@H气凝胶对阳离子染料亚甲基蓝的去除效率达到 85%,最大吸附量为 250 mg/g,PCN@H气凝胶对阴离子染料甲基橙的去除效率达到 93%,最大吸附量为 274 mg/g.综上所述,PCN@H在废水中染料去除方面具有广阔应用前景.
Abstract
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.
关键词
MOF/凝胶/染料废水/吸附Key words
MOF/Gel/dye wastewater/adsorbent引用本文复制引用
出版年
2024
NETL
NSTL
万方数据