粘胶基沸石咪唑骨架材料的制备及其对染料的脱色

为提高沸石咪唑骨架材料(ZIF-8)对染料的脱色性能,以粘胶织物为基材,在其表面负载氧化石墨烯,再原位生长ZIF-8得到氧化石墨烯/ZIF-8粘胶基功能材料,然后还原得到还原氧化石墨烯(rGO)/ZIF-8功能材料.借助扫描电子显微镜、X射线衍射仪、傅里叶红外光谱仪等对功能材料进行表征,分析其在不同光源下对活性黑KN-...

Preparation and decolorization of rayon based zeoliticimidazolate framework functional material

In order to improve the decolorization performance of zeoliticimidazolate framework material(ZIF-8)for dyes,reduced graphene oxide(rGO)/ZIF-8 rayon based functional materials were prepared by loading graphene oxide(GO)and ZIF-8 on rayon surface followed by reducing.The functional materials were characterized by scanning electron microscopy,X-ray diffraction,and Fourier transform infrared spectrometer.The photocatalytic degradation of Reactive Black KN-B dye by rGO/ZIF-8 rayon based functional material under different light sources was studied,and the photocatalytic mechanism was discussed.The results show that the decolorization ratio of rGO/ZIF-8 rayon based functional material for Reactive Black KN-B dye is 97.1%,and the superoxide anion radical(·O2-)produced by the reaction between the functional material and sunlight are captured by dissolved oxygen in water,which is the main active substance to degrade Reactive Black KN-B.After being reused for three times,the decolorization ratio of Reactive Black KN-B dye remains to be more than 90%.