化工新型材料

化工新型材料 ›› 2024, Vol. 52 ›› Issue (3) : 247-252. DOI: 10.19817/j.cnki.issn1006-3536.2024.03.005

开发与应用

NaBiS₂/ZIF-8复合多糖海绵的制备及其对亚甲基蓝降解性能研究

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Preparation of NaBiS₂/ZIF-8 composite polysaccharide sponge and its degradation performance against methylene blue

Lu Bowen¹, You Junyang¹, Zeng Fanjun², Xia Lei¹, Zhuang Xupin¹

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文章历史 +

Received		Published
2022-11-27		2024-03-20
Issue Date	Revised Date
2024-03-28	2022-11-27

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摘要

采用相转化法制备了硫化铋钠(NaBiS₂)/ZIF-8复合多糖海绵(ZBiCCS),用于高效去除染料废水中的亚甲基蓝(MB)。通过X射线衍射仪、傅里叶变换红外光谱仪、扫描电子显微镜、透射电子显微镜等对复合海绵结构、形貌以及光学性能进行了表征并研究了其对MB染料的吸附-降解性能。结果表明,纤维素和壳聚糖得到再生,并且在复合海绵表面原位生成了NaBiS₂和ZIF-8纳米颗粒。在Zn²⁺盐和Bi³⁺盐摩尔为2∶1,MB初始质量浓度为30mg/L,模拟太阳光作为光源条件下,复合海绵对MB的降解率可达到98.88%,表明复合海绵能够利用吸附-光降解协同效应高效去除废水中的MB,该材料在染料废水处理方面具有潜在的应用价值。

Abstract

The NaBiS₂/ZIF-8 composite polysaccharide sponge (ZBiCCS) was prepared by phase transformation method for the efficient removal of methylene blue (MB) from wastewater.The structure,morphology and optical properties of the composite sponge were characterized by X-ray diffractometer,Fourier transform infrared spectrometer,scanning electron microscope and transmission electron microscope,and its adsorption-degradation properties for MB dyes were investigated.The results showed the successful regeneration of cellulose and chitosan and the in-situ generation of NaBiS₂ and ZIF-8 nano-particles on the sponge surface.In the case of Zn²⁺ salt and Bi³⁺ salt with a molar ratio of 2∶1,the initial concentration of MB was 30mg/L,and the simulated sunlight was used as the irradiation light source,the composite sponge achieved a degradation rate of 98.88% for MB,indicating that the composite sponge could efficiently remove methylene blue from wastewater by adsorption-photodegradation synergistic effect,and had potential applications value in the treatment of dye wastewater.

关键词

复合多糖海绵 / ZIF-8 / 硫化铋钠 / 亚甲基蓝 / 吸附-光降解协同效应

Key words

composite polysaccharide sponge / ZIF-8 / NaBiS₂ / methylene blue / adsorption-photodegradation synergistic effect

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NaBiS₂/ZIF-8复合多糖海绵的制备及其对亚甲基蓝降解性能研究[J]. 化工新型材料, 2024, 52(3): 247-252 DOI:10.19817/j.cnki.issn1006-3536.2024.03.005

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