当前位置：
X-MOL 学术
›
Phys. Status Solidi B
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Fabrication and Characterization of Type‐II Heterostructure n:In2O3/p:in‐TiO2 for Enhanced Photocatalytic Activity
Physica Status Solidi (B) - Basic Solid State Physics ( IF 1.5 ) Pub Date : 2020-11-10 , DOI: 10.1002/pssb.202000441 Sinitha B. Nair 1, 2 , K. Aijo John 3 , Julie Ann Joseph 1 , Shinto Babu 1 , V. K. Shinoj 1 , Stephen K. Remillard 4 , Sadasivan Shaji 5 , Rachel Reena Philip 1
Physica Status Solidi (B) - Basic Solid State Physics ( IF 1.5 ) Pub Date : 2020-11-10 , DOI: 10.1002/pssb.202000441 Sinitha B. Nair 1, 2 , K. Aijo John 3 , Julie Ann Joseph 1 , Shinto Babu 1 , V. K. Shinoj 1 , Stephen K. Remillard 4 , Sadasivan Shaji 5 , Rachel Reena Philip 1
Affiliation
|
The photodegradation rate of anatase TiO2 is enhanced by about 11 times (from 0.0015 to 0.016 min−1) by construction of a type‐II p–n heterostructure of configuration n:In2O3/p:In‐doped TiO2. A simple and cost‐effective two‐stage electrochemical anodization is used for the fabrication of this comparatively stable and recyclable photocatalyst of vertically aligned indium‐doped TiO2 nanotubes with an overlayer of n‐type In2O3 nanoparticles. The modified structural, morphological, compositional, optical, and electrical properties of the TiO2 nanotubes are studied in detail by X‐ray diffraction, X‐ray photoelectron spectroscopy, Rutherford backscattering, field‐emission scanning electron microscopy, reflectance measurements, and electrical conductivity measurements. The enhancement in device performance by the heterostructure is attributable to the tuning of optical bandgap to the visible energy region of solar spectrum, the effective electron–hole pair separation at the potential barrier, and the increase in surface‐to‐volume ratio and effective adsorption area of the photocatalyst by the structural modification with nanoparticles and the nanotube formation.
中文翻译：
II型异质结构n：In2O3 / p：in-TiO2的制备和表征，以增强光催化活性
通过构造构型为n：In 2 O 3 / p：In掺杂的TiO 2的II型p-n异质结构，锐钛矿型TiO 2的光降解速率提高了约11倍（从0.0015到0.016 min -1）。一种简单且经济高效的两步电化学阳极氧化用于制备这种相对稳定且可回收的垂直排列的铟掺杂的TiO 2纳米管，其上覆有n型In 2 O 3纳米粒子。TiO 2的改性结构，形态，组成，光学和电学性质通过X射线衍射，X射线光电子能谱，卢瑟福反向散射，场发射扫描电子显微镜，反射率测量和电导率测量来详细研究纳米管。异质结构提高了器件性能，这归因于将光学带隙调节至太阳光谱的可见能量区域，在势垒处有效的电子-空穴对分离以及表面体积比和有效吸附的增加通过纳米颗粒的结构改性和纳米管的形成使光催化剂的面积减小。
更新日期：2020-11-10
中文翻译：
II型异质结构n：In2O3 / p：in-TiO2的制备和表征，以增强光催化活性
通过构造构型为n：In 2 O 3 / p：In掺杂的TiO 2的II型p-n异质结构，锐钛矿型TiO 2的光降解速率提高了约11倍（从0.0015到0.016 min -1）。一种简单且经济高效的两步电化学阳极氧化用于制备这种相对稳定且可回收的垂直排列的铟掺杂的TiO 2纳米管，其上覆有n型In 2 O 3纳米粒子。TiO 2的改性结构，形态，组成，光学和电学性质通过X射线衍射，X射线光电子能谱，卢瑟福反向散射，场发射扫描电子显微镜，反射率测量和电导率测量来详细研究纳米管。异质结构提高了器件性能，这归因于将光学带隙调节至太阳光谱的可见能量区域，在势垒处有效的电子-空穴对分离以及表面体积比和有效吸附的增加通过纳米颗粒的结构改性和纳米管的形成使光催化剂的面积减小。
京公网安备 11010802027423号