Fixation of BiOI/BiOBr/MoS2 Powders on Fiber Cloths for Photocatalytic Degradation of Ammonia Nitrogen from Aqueous Solution

Yi Wei, P. Tang, Minfeng Huang, Yongzhang Pan
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引用次数: 1

Abstract

A novel photocatalyst powder, BiOI/BiOBr/MoS2, was synthesized by a simple solvothermal method. X-ray diffraction (XRD), specific surface area and pore size analyses, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray energy spectrometry (EDS) were utilized to characterize the prepared samples. After evaluating the photocatalytic performance of the catalyst, it was loaded on the glass fiber and carbon fiber by polyvinylidene fluoride (PVDF) and N-methylpyrrolidone, respectively. The photocatalytic activity of the composite was investigated by the degradation of ammonia nitrogen wastewater. The fiber cloth solved the problem of separation of powder from solution after reaction, and the presence of the binder reduces the agglomeration of the nanoparticles in the water. After four times repeated experiments, the degradation of simulate ammonia nitrogen wastewater by loaded glass fiber and loaded carbon fiber are 74.1% and 60.58%. Fixation of BiOI/BiOBr/MoS2 powders on fiber cloth solve the problem of difficult recovery of powder photocatalytic materials and it can be recycled, which has economic valuable.
BiOI/BiOBr/MoS2粉末在纤维布上固定光催化降解水溶液中氨氮
采用简单的溶剂热法合成了一种新型光催化剂BiOI/BiOBr/MoS2粉末。利用x射线衍射(XRD)、比表面积和孔径分析、扫描电镜(SEM)、透射电镜(TEM)和x射线能谱(EDS)对制备的样品进行表征。在评价了催化剂的光催化性能后,将其分别用聚偏氟乙烯(PVDF)和n -甲基吡咯烷酮负载在玻璃纤维和碳纤维上。通过对氨氮废水的降解研究了复合材料的光催化活性。纤维布解决了反应后粉末与溶液分离的问题,粘结剂的存在减少了纳米颗粒在水中的团聚。经过4次重复实验,加载玻璃纤维和加载碳纤维对模拟氨氮废水的降解效果分别为74.1%和60.58%。将BiOI/BiOBr/MoS2粉末固定在纤维布上,解决了粉末光催化材料难回收的问题,可循环利用,具有经济价值。
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