Pant Bishweshwar, Ojha Gunendra Prasad, Kuk Yun-Su, Kwon Oh Hoon, Park Yong Wan, Park Mira
Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun, Jeollabuk-do 55338, Korea.
Korea Institute of Carbon Convergence Technology (KCTECH), Jeonju 54853, Korea.
Nanomaterials (Basel). 2020 Oct 1;10(10):1960. doi: 10.3390/nano10101960.
Herein, we prepared a novel photocatalytic ZnO-TiO loaded carbon nanofibers composites (ZnO-TiO-CNFs) via electrospinning technique followed by a hydrothermal process. At first, the electrospun TiO NP-embedded carbon nanofibers (TiO-CNFs) were achieved using electrospinning and a carbonization process. Next, the ZnO particles were grown into the TiO-CNFs via hydrothermal treatment. The morphology, structure, and chemical compositions were studied using state-of-the-art techniques. The photocatalytic performance of the ZnO-TiO-CNFs composite was studied using degrading methylene blue (MB) under UV-light irradiation for three successive cycles. It was noticed that the ZnO-TiO-CNFs nanocomposite showed better MB removal properties than that of other formulations, which might be due to the synergistic effects of carbon nanofibers and utilized metal oxides (ZnO and TiO). The adsorption characteristic of carbon fibers and matched band potentials of ZnO and TiO combinedly help to boost the overall photocatalytic performance of the ZnO-TiO-CNFs composite. The obtained results from this study indicated that it can be an economical and environmentally friendly photocatalyst.
在此，我们通过静电纺丝技术并结合水热法制备了一种新型的光催化ZnO-TiO负载碳纳米纤维复合材料（ZnO-TiO-CNFs）。首先，通过静电纺丝和碳化过程制备了嵌入TiO纳米颗粒的碳纳米纤维（TiO-CNFs）。接下来，通过水热处理使ZnO颗粒生长在TiO-CNFs上。使用先进技术研究了其形态、结构和化学成分。通过在紫外光照射下连续三个循环降解亚甲基蓝（MB）来研究ZnO-TiO-CNFs复合材料的光催化性能。结果发现，ZnO-TiO-CNFs纳米复合材料表现出比其他配方更好的MB去除性能，这可能归因于碳纳米纤维与所使用的金属氧化物（ZnO和TiO）的协同效应。碳纤维的吸附特性以及ZnO和TiO匹配的能带电位共同有助于提高ZnO-TiO-CNFs复合材料的整体光催化性能。本研究获得的结果表明，它可以成为一种经济且环保的光催化剂。
