一步水热法合成具有高催化活性的介孔氢氧化铟纳米晶  

One-step hydrothermal synthesis of high active mesoporous nanocubes of In(OH)_3 with high photocatalytic activity

作　　者：李长玉[1] 刘国超[1] 刘守新[1] 

机构地区：[1]东北林业大学材料科学与工程学院,哈尔滨150040

出　　处：《功能材料》2014年第6期144-147,152,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(30771692)

摘　　要：以硝酸铟为原料,六亚甲基四胺(HMT)为沉淀剂,采用一步水热法合成具有高催化活性的介孔氢氧化铟纳米晶。采用XRD、TEM、FT-IR和DRS等对样品的晶相结构、形貌和光学性能进行表征。以甲苯为模型物,测试氢氧化铟的光催化性能。结果显示其对甲苯的光催化活性要高于TiO2(P25),且非常稳定,使用12次后其对甲苯的降解仍然可达90%。同时探讨了介孔氢氧化铟纳米晶的光催化机理。The mesoporous nanocuhes of In （OH） was prepared by one step hydrothernaal method using In （NO） and hexamine （HMT） as the precursor. X-ray power diffraction （XRD）, UV Vis diffuse reflectance spectroscopy （DRS）, Fourier transform infrared spectrometry （FT IR） and transmissio~ electron microscopy （TEM） were employed to investigate the structure, morphologies, and optical properties of samples. Toluene was used as a probe molecule to investigate the photocatalytic activity of the mesoporous nanocuhes of In （OH）. The results showed that the photocatalytic activity of the nlesoporous nanocuhes of In（OH） was more stahle and higher than that of I）egussa P25. The degradation rate of toluene reached 90% under UV irradiation after the In（OH） was recycled used for ] 2 times. The mechanism of high activity of the naesoporous nanocuhes of In（OH） was also discussed.

关 键 词：氢氧化铟 甲苯 光催化剂 纳米材料 

分 类 号：O643[理学—物理化学]