Department of Chemistry, Science College, Imam Abdulrahman Bin Faisal University, P. O. Box 1982, Dammam, 31441, Kingdom of Saudi Arabia.
Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia.
Environ Sci Pollut Res Int. 2019 Apr;26(12):12288-12301. doi: 10.1007/s11356-019-04684-3. Epub 2019 Mar 6.
In this work, a new type of advanced 3D mesoporous carbon nanocomposites derived from Zn dust/PET bottle mixed waste with a high surface area is created. Interestingly, simultaneous transformation of Zn metal into ZnO nanoparticles and PET bottle waste to porous carbon materials occurred upon thermal treatment at 700 °C. The effect of the amount of Zn metal on the prepared materials has been studied. The carbon material-based waste presented very large surface area (up to 684.5 m/g) with pore size distribution (18.47-16.88 nm). The SEM and TEM analysis revealed that the produced carbon materials have 3D porous dense layers with a gradient pore structure. The created waste-based nanocomposite exhibited an enhanced photocatalytic performance for the degradation of organic dyes (methylene blue and malachite green). It is believed that the presented work not only provides a sustainable approach to the creation of new nanocomposites of ZnO-mesoporous carbon materials for the application in photocatalysis but also introduces a new way of upcycling of mixed waste materials.
在这项工作中，我们利用 Zn 粉尘/废弃 PET 瓶混合废物合成了一种新型的具有高比表面积的先进 3D 介孔碳纳米复合材料。有趣的是，在 700°C 的热处理过程中，Zn 金属同时转化为 ZnO 纳米粒子，废弃的 PET 瓶转化为多孔碳材料。我们研究了 Zn 金属用量对所制备材料的影响。基于碳材料的废物具有非常大的表面积（高达 684.5 m/g）和孔尺寸分布（18.47-16.88nm）。SEM 和 TEM 分析表明，所制备的碳材料具有 3D 多孔致密层和梯度孔结构。所制备的基于废物的纳米复合材料在降解有机染料（亚甲基蓝和孔雀石绿）方面表现出增强的光催化性能。我们相信，这项工作不仅为用于光催化的 ZnO-介孔碳材料的新型纳米复合材料的创建提供了一种可持续的方法，而且还为混合废物的再利用提供了一种新途径。
