CAJ | 학술논문

制备了3种不同形貌的TiO2结构：纳米杯、(001)纳米片、(100)纳米片，并进一步与Pt纳米粒子复合以去除污水中的有机染料。透射电镜结果证实了3种TiO2纳米结构的形成，观察到了附着其上的Pt纳米粒子。使用XRD确定了3种TiO2纳米结构均为锐钛矿相。以罗丹明B作为有机染料，检测了不同形貌TiO2及其Pt复合物的光催化性能。结果表明：纳米杯状的Pt/TiO2在罗丹明B溶液中表现出最高降解率，在1.5 h内降解率可达99.1%。同时讨论了TiO2及其复合物的光降解机理。
제비료3충불동형모적TiO2결구：납미배、(001)납미편、(100)납미편，병진일보여Pt납미입자복합이거제오수중적유궤염료。투사전경결과증실료3충TiO2납미결구적형성，관찰도료부착기상적Pt납미입자。사용XRD학정료3충TiO2납미결구균위예태광상。이라단명B작위유궤염료，검측료불동형모TiO2급기Pt복합물적광최화성능。결과표명：납미배상적Pt/TiO2재라단명B용액중표현출최고강해솔，재1.5 h내강해솔가체99.1%。동시토론료TiO2급기복합물적광강해궤리。
Pt/TiO2 nanocomposites with three different TiO2 morphologies ( nanocup, ( 001 ) nanosheet, (100) nanosheet) were prepared for removing dye from wastewater. Transmission elec-tron microscopy results confirmed the formation of nanocup, (001) nanosheet, (100) nanosheet of TiO2 and the presence of Pt nanoparticles attached on TiO2 nanostructure. All TiO2 samples are ana-tase indicated by X-ray diffraction. The as-prepared Pt/TiO2 nanocomposites were used as adsorbent to remove dye from wastewater using the organic dye Rhodamine B as adsorbate. The nano-cup Pt/TiO2 sample exhibited the best efficiency on the degradation rate of Rhodamine B, and the removal ratio of the dye gets to 99.1% less than 1. 5 h. Adsorption kinetics and isotherm were investigated and the possible mechanism of the different photocatalytic efficiency was suggested.