CAJ | 학술논문

由低维度纳米尺寸单元构建组成的三维分级结构纳米材料具有优异的物理和化学特性.三维分级结构对TiO2纳米材料的光、电、化学等性质有着显著的优化作用,TiO2作为一种重要的宽禁带半导体材料在光催化、电化学等领域得到了广泛的研究.本文综述了各种不同维度基本组成单元构建而成的三维分级 TiO2纳米材料的合成方法,不同的合成方法得到了由纳米线、纳米片、纳米棒以及二维结构组装而成的各种不同形貌的三维分级结构TiO2纳米材料.同时还介绍了三维分级结构TiO2纳米材料在染料敏化太阳能电池、锂离子电池和光催化等应用领域中的最新研究进展,并对其可控合成进行了展望.
유저유도납미척촌단원구건조성적삼유분급결구납미재료구유우이적물리화화학특성.삼유분급결구대TiO2납미재료적광、전、화학등성질유착현저적우화작용,TiO2작위일충중요적관금대반도체재료재광최화、전화학등영역득도료엄범적연구.본문종술료각충불동유도기본조성단원구건이성적삼유분급 TiO2납미재료적합성방법,불동적합성방법득도료유납미선、납미편、납미봉이급이유결구조장이성적각충불동형모적삼유분급결구TiO2납미재료.동시환개소료삼유분급결구TiO2납미재료재염료민화태양능전지、리리자전지화광최화등응용영역중적최신연구진전,병대기가공합성진행료전망.
Complex three-dimensional hierarchical structures assembled from well-defined low- dimensional nanosized building blocks are an interesting class of nanomaterials with a rich variety of physicochemical properties. The three-dimensional hierarchical TiO2 nanomaterials have excellent electrical,optical and chemical properties. They have been widely studied in the field of photocatalysis and electrochemistry. In this review,the latest research progress on preparation methods has been reviewed. Different morphologies of three-dimensional hierarchical structure of titanium dioxide nanomaterial composed of the assembly of nanowire,nanosheet,nanorod and two-dimensional structure can be obtained by different synthesis methods. Furthermore,the applications of these novel materials for dye-sensitized solar cells,lithium ion battery and photocatalysis were discussed. The future developments of synthetic strategies about three-dimensional hierarchical structure were also outlooked.