CAJ | 학술논문

纳米 TiO2半导体作为光催化材料的代表，以其较高的光敏性、化学稳定性和环境友好等诸多优点受到广泛关注；但由于纳米TiO2颗粒极易团聚，对有机物吸附量较低等缺点，限制了纳米TiO2光催化效率的提高。本文综述了以 ZSM-5为载体，制备纳米 TiO2/ZSM-5及金属阳离子改性后的 M-纳米 TiO2/ZSM-5和纳米 TiO2/M-ZSM-5不同方法，归纳比较了各种制备方法的优缺点，阐述了以纳米TiO2/ZSM-5为主体的催化剂光催化降解有机物的研究现状。并指出提高纳米TiO2颗粒在载体上的均匀分散性，引入合适金属离子来增强对电子的吸引能力从而抑制空穴电子对的复合，是未来研究高效光催化剂的发展方向之一。
납미 TiO2반도체작위광최화재료적대표，이기교고적광민성、화학은정성화배경우호등제다우점수도엄범관주；단유우납미TiO2과립겁역단취，대유궤물흡부량교저등결점，한제료납미TiO2광최화효솔적제고。본문종술료이 ZSM-5위재체，제비납미 TiO2/ZSM-5급금속양리자개성후적 M-납미 TiO2/ZSM-5화납미 TiO2/M-ZSM-5불동방법，귀납비교료각충제비방법적우결점，천술료이납미TiO2/ZSM-5위주체적최화제광최화강해유궤물적연구현상。병지출제고납미TiO2과립재재체상적균균분산성，인입합괄금속리자래증강대전자적흡인능력종이억제공혈전자대적복합，시미래연구고효광최화제적발전방향지일。
As a typical photocatalyst,TiO2 has been extensively investigated because of its fascinating high photosensitivity,chemical stability and environment-friendly character. However,nanoscale TiO2 particles are less efficient in photocatalysis due to its tendency of aggregation,leading to a limited adsorption capacity toward organic compounds. Different preparation methods of nanoTiO2/ZSM-5 and metal modified nanoTiO2/ZSM-5 particles,i.e. M-nanoTiO2/ZSM-5 and nanoTiO2/M-ZSM-5,are summarized regarding their objective composites. Recent advances of nanoTiO2/ZSM-5 catalyst in the photocatalytic degradation of organic substances are reviewed. There is a good research prospect for highly efficient photocatalysts in improving uniform dispersion of nano TiO2 on support,and loading appropriate metal ions,which prevent the combination of hole-electron pairs by enhancing the attraction for electron.