碳纳米纤维与氧化锌复合材料光催化性质的研究

Photocatalytic Properties of Carbon Nanofibers with Zinc Oxide Composites

利用静电纺丝技术和水热方法制备碳纳米纤维(CNFs)与氧化锌(ZnO)复合光催化材料,该材料具有优异的光催化活性.CNFs具有较好的导电性,ZnO半导体的光生电子可以及时被CNFs转移,延长ZnO半导体光生电子和光生空穴的再结合时间,从而增强空穴的氧化性能.CNFs作为衬底材料,ZnO纳米粒子分立的生长在其上,不会发生因纳米粒子聚集而降低材料光催化性能的现象.CNFs和ZnO复合材料在短时间内可有效降解罗丹明B.

Using the electrospinning technique and hydrothermal prepared carbon nanofibers with zinc oxide com- posite photocatalytie materials have excellent photocatalytic activity. Carbon nanofibers have good electrical conduc- tivity. ZnO semiconductor photo - generated electrons can be promptly transferred by carbon nanofibers. Extend ZnO semiconductor photo - generated electrons and holes recombination time. Thus, enhance the oxidation of holes. Car- bon nanofibers as substrate materials, ZnO nanoparticles discrete growth on them. Nanoparticles will not come to- gether, impact photoeatalytic degradation. Carbon nanofibers and ZnO composites can effectively degrade Rhodamine B in a short time.