CAJ | 학술논문

采用气相沉积法和水热法制备纳米氧化锌,分析了不同工艺条件对纳米氧化锌颗粒大小的影响。以罗丹明B为模拟污染物,研究了不同工艺条件下纳米氧化锌的光催化效率。结果表明：采用两种不同方法制备的纳米氧化锌均为六方晶系纤锌矿结构。气相沉积法制备的样品颗粒粒径大小为51.73-41.39nm；对罗丹明B的降解率最高可达95.24%。采用水热法制备纳米氧化锌,有机添加剂对纳米氧化锌的性能有一定的影响,不添加有机化合物制备的样品颗粒粒径为68.94nm,对罗丹明 B 降解率为85.28%；添加不同有机化合物,颗粒粒径大小为68.91-45.94nm,对罗丹明B降解率为86.96%-73.43%。在相同条件下,气相沉积法制备的纳米氧化锌颗粒粒径更小,对罗丹明B的降解率更高。
채용기상침적법화수열법제비납미양화자,분석료불동공예조건대납미양화자과립대소적영향。이라단명B위모의오염물,연구료불동공예조건하납미양화자적광최화효솔。결과표명：채용량충불동방법제비적납미양화자균위륙방정계섬자광결구。기상침적법제비적양품과립립경대소위51.73-41.39nm；대라단명B적강해솔최고가체95.24%。채용수열법제비납미양화자,유궤첨가제대납미양화자적성능유일정적영향,불첨가유궤화합물제비적양품과립립경위68.94nm,대라단명 B 강해솔위85.28%；첨가불동유궤화합물,과립립경대소위68.91-45.94nm,대라단명B강해솔위86.96%-73.43%。재상동조건하,기상침적법제비적납미양화자과립립경경소,대라단명B적강해솔경고。
Chemical vapor deposition and hydro-thermal methods have been investigated in the synthesis of ZnO nanoparticles （ NPs ） respectively. The analysis of effect of different preparation strategies on the morphologies and size distribution of the ZnO NPs has also been probed. Rhodamine B is used to simulate the pollutant in analyzing the photocatalytic property of nano-ZnO synthesized via different pathways. The experimental results indicate that the nano-ZnO particles prepared in different methods own the six hexagonal wurtzite structure. The feature size of nano-ZnO particles synthesized by chemical vapor deposition ranges from 41.39nm to 51.73nm and the maximum degradation ratio of rhodamine B by nano-ZnO can reach 95.24%. Organic additives have been proved to exert an apparent influence on the photocatalytic per-formances of ZnO NPs synthesized through hydro-thermal＆amp;nbsp;method. Specifically,without the organic additives, the average particle size of ZnO NPs is around 68.94nm, with the corresponding photodegradation ratio 85.28% in eliminating rhodamine B. The size of nano-ZnO particles ranges from 68.91nm to 45.94nm when add with different organic compounds and the relative photodegradation ratio ranges from 86.96% to 73.43%. Under otherwise identical conditions, the feature size of nano-ZnO particles synthesized by chemical vapor deposition has a larger diameter than the size of ZnO NPs synthesized through hydro-thermal method. The maximum degradation ratio of rhodamine B by nano-ZnO particles which synthesized via chemical vapor deposition is higher than The maximum degradation ratio of rhodamine B by nano-ZnO particles prepared through hydro-thermal method.