Preparation And Photocatalytic Properties Of Glass Fiber Ball Bundle Supported MOF Matrix Composites

A large amount of WPCB is produced every year,which brings serious waste of resources and environmental pollution at the same time,and most of the existing treatment and disposal solutions are aimed at the metal parts in the circuit board.In this paper,the recovered WPCB non-metallic powder is prepared into glass fiber ball bundles by simple acid hydrolysis treatment,and the organic waste water is treated with a catalyst of light,so as to achieve the purpose of treating waste with waste.Metal organic framework structure,as a kind of porous materials formed by inorganic organic hybridization,mainly includes two parts:metal ions and organic ligands.As the active ligand of semiconductor,it can improve the absorption efficiency of metal ions in the field of photocatalysis.As a kind of two-dimensional conductive materials,MXene has good conductivity,is a good cocatalyst in the field of photocatalysis,and has broad application prospects in the field of polymer composites.TiO₂is a semiconductor material with excellent performance,so it has been widely studied and applied in the field of photocatalysis.However,its application is limited by its large band gap,so it usually needs to be modified.Therefore,in this paper,the glass fiber ball bundle prepared from WPCB non-metallic powder is used as the carrier and the composite photocatalyst based on MOF material is supported.It was used for photocatalytic degradation of dye wastewater,and its photocatalytic performance and influencing factors were explored.The main research results are as follows:1.The CuCo bimetallic MOFs(GfB/Cu_xCo_1-x-MOFs)with different proportions of glass fiber spheres were prepared by solvothermal method,and their photocatalytic properties were tested.The experimental results show that the degradation rate of Rhodamine B by GfB/CuCo-MOF incorporating cobalt ions is 2.5 times that of single Cu-MOF under UV light,and 3.6 times that of Cu-MOF under xenon lamp irradiation.According to the photocatalytic experiment results of different ratios of copper-cobalt ions,the optimal ratio of copper-cobalt ions is 1:1.2.On the basis of bimetallic MOF,GfB/MXene/CuCo-MOF composite was prepared by solvothermal method by introducing MXene material,and its performance was characterized and its photocatalytic performance was tested. Through the analysis of UV-Vis diffuse reflectance spectroscopy and Photoluminescence spectroscopy,it was found that the photoresponse range of the composite material introduced with MXene was broadened to 520 nm,and the recombination efficiency of photogenerated carriers was also significantly reduced.The photocatalytic performance test found that the degradation rate of the composite material to Rhodamine B basically did not change under ultraviolet light,while under the xenon lamp irradiation,its degradation rate was 1.7 times that of GfB/CuCo-MOF and 6.9 times that of single Cu-MOF.3.The GfB/TiO₂/CuCo-MOF composites were prepared by solvothermal method.Through the analysis of UV-Vis diffuse reflectance spectroscopy and photoluminescence spectroscopy,it was found that the photoresponse range of the composites introduced with TiO₂was broadened to 550 nm,and the photogenerated carrier recombination efficiency was also improved.slightly lower.The photocatalytic performance test found that the degradation rate of the composite material to Rhodamine B basically did not change under ultraviolet light,while under the irradiation of xenon lamp,its degradation rate was 2 times that of GfB/CuCo-MOF and 7 times that of single Cu-MOF.