CAJ | 학술논문

　　以均匀沉淀法制备纳米ZnO，并将其负载在氧化石墨烯(GO)上制得了ZnO/GO复合材料。XRD、TEM、UV、PL等证实在GO表面分散着颗粒均匀的ZnO纳米颗粒，GO与ZnO纳米颗粒之间存在电子转移效应，抑制ZnO中光生电子空穴对的复合，提高了ZnO的可见光催化性能；考察了复合材料在模拟太阳光条件下降解亚甲基蓝的光催化性能，当GO添加量为10%时，模拟太阳光照射90 min后，对亚甲基蓝的降解率达到97.2%，经过10次循环使用后降解率没有明显降低，复合材料的可见光催化活性明显优于纯的纳米ZnO，同时ZnO/GO复合材料对部分工业染料也有很好的降解活性。
　　이균균침정법제비납미ZnO，병장기부재재양화석묵희(GO)상제득료ZnO/GO복합재료。XRD、TEM、UV、PL등증실재GO표면분산착과립균균적ZnO납미과립，GO여ZnO납미과립지간존재전자전이효응，억제ZnO중광생전자공혈대적복합，제고료ZnO적가견광최화성능；고찰료복합재료재모의태양광조건하강해아갑기람적광최화성능，당GO첨가량위10%시，모의태양광조사90 min후，대아갑기람적강해솔체도97.2%，경과10차순배사용후강해솔몰유명현강저，복합재료적가견광최화활성명현우우순적납미ZnO，동시ZnO/GO복합재료대부분공업염료야유흔호적강해활성。
The ZnO nanoparticles were prepared by homogeneous precipitation method and the graphene oxide (GO) was chosen as a substrate to load the ZnO nanoparticles. The as-prepared sample was characterized respectively by X-ray diffraction (XRD), Transmission electron microscopy (TEM), UV-vis spectrum and Photoluminescence spectrum (PL). The results show that the ZnO nanoparticles are uniformly dispersed on the surface of GO. Electronic migration effect exists between GO and ZnO and inhibits the recombination of electron-hole pair in ZnO, which improves the visible-light photocatalytic activity of ZnO. The photocatalytic activity of the ZnO/GO composite was evaluated by the degradation of methylene blue under simulated sunlight irradiation. When the mass ratio of graphene oxide to ZnO is 1:9, the degradation ratio of methylene blue is up to 97.2%after 90 min of irradiation. The ZnO/GO composite exhibits a better photocatalytic performance than pure ZnO and could maintain its photocatalytic activity after being reused for ten times. The ZnO/GO composite also shows high photocatalytic activity for degradation of some other industrial dyes.