【摘 要】
：
Using Ti powder as reagent,ultra-long TiO2 nanofibers were prepared via hydrothermal method in NaOH solution.The samples were characterized respectively by mean
【机 构】
：
College of Material Science and Technology,Kunming
【基金项目】
：
Peak of Six Major Human Resources Plan of Jiangsu Province and Jiangsu Key Technology R&D Program
论文部分内容阅读
Using Ti powder as reagent,ultra-long TiO2 nanofibers were prepared via hydrothermal method in NaOH solution.The samples were characterized respectively by means of field emission scanning electron microscopy (FESEM),transmission electron microscopy (TEM) with selected area electron diffraction (SAED),and X-ray diffraction (XRD).The diameter and the length of the ultra-long TiO2 nanofiber were ～100 nm and ＞200 μm,respectively.The ultra-long TiO2 nanofibers were anatase after heat treatment at 450 ℃ for 1 h.Moreover,the optical properties of the products were investigated by UV-visible light absorption spectrum.Furthermore,methyl orange was used as a target molecule to estimate the photocatalytic activity of the specimens.Under the same testing conditions,the photocatalytic activity of the ultra-long TiO2 nanofibers was higher than that of P25.Direct electrical pathway and improved light-harvesting efficiency were crucial for the superior photocatalytic activity of the ultra-long TiO2 naaofibers.
其他文献
为取消蒸汽爆破预处理玉米秸秆水洗脱毒步骤和提高乙醇发酵的乙醇浓度,利用专利菌株酿酒酵母Y5,对蒸汽爆破预处理玉米秸秆不经脱毒处理,直接进行同步糖化和发酵(SSF).蒸汽爆
采用CFD软件包FINE/TURBO和带有壁面函数的k-ε湍流模型进行复杂地形地貌风电场流场的数值模拟研究.首先以简化的二维山地模型,探索计算域的高度、长度对目标山地流场的影响,
在动量-叶素理论和Betz理论的基础上,结合PROPID软件进行功率为1.5 MW水平轴风力机叶片的气动设计研究.叶片气动设计采用高升力系数法,叶片剖面采用NPU-WA系列高升力、高升阻
针对背靠背双PWM变流器励磁的双馈风力发电存在功率因数低以及传统矢量控制策略存在动态解耦性能不佳的问题,提出采用非线性控制策略的双级矩阵变换器励磁双馈风力发电系统解
从有机污泥中富集得到HAU-M1光合产氢细菌菌群,其主要包括深红红螺菌、荚膜红假单胞菌、沼泽红假单胞菌、类球红细菌、荚膜红细菌等5种光合细菌,且质量分数分别为27％、25％、28％
以5种不同弯度的弧形翼为研究对象,通过风洞实验方法,采用同步测压技术,建立弧形翼附面层压力场测试实验装置,测定5°~30°范围内典型来流攻角下叶片表面压力分布,分析翼型弯
The effect of cryogenic temperature on adiabatic shear banding (ASBing) of tungsten heavy alloy (WHA) processed by hot-hydrostatic extrusion was investigated.Re
为实现某大型水平轴风力机塔筒顶部焊缝的抗极限与疲劳强度设计,建立塔筒顶部的有限元模型。模型充分考虑螺栓预紧力、轴承刚度、部件间接触等非线性因素,考察了极限工况下焊
针对风电机组齿轮箱中齿轮故障特征提取与故障诊断问题,提出一种基于集合经验模式分解(EEMD)、奇异谱熵和模糊C均值聚类的故障诊断方法.首先对原始振动信号进行EEMD分解,得到
研究SOGI-FLL锁相系统受到自身结构制约而无法实现快速响应的原因.提出在其基础上加入一个与原输入差90°相位的新输入端,从而形成双输入SOGI-FLL(dual-input SOGI-FLL,DISOG