查询词典 anatase

First-principles plane-wave pseudopotential calculations were performed to study energetics , the geometry structures of intrinsic vacancies and interstitials on the anatase TiO2 (101) crystal surface.

采用平面波超软赝势方法计算了锐钛矿型TiO2(101)面存在本征空位和间隙点缺陷的几何结构以及缺陷形成能。

In the titanium silicalites prepared by gas-solid isomorphous replacement, the extra-framework titanium will exist in the form of rutile or anatase.

气固相同晶取代法制备的钛硅沸石中，非骨架钛则是以锐钛矿型或金红石型TiO2的形式存在。

The results show Ce-TiO2 coating on kieselguhr. The crystalline phase of titanium dioxide is still only anatase in wide range of temperature. The light absorption in visible region increases with increasing Ce-doping content in J2Ce-TiO2/kieselguhr, so it is beneficial to use sun's ray.

结果表明：Ce-TiO2包覆在硅藻土颗粒上，并能在较高的煅烧温度(500 ℃)范围内保持锐钛矿晶体结构；随着铈掺杂含量的提高，J2Ce-TiO2/KL对可见光的吸收明显增强，有利于充分利用太阳光。

It was indicated by UV-Vis spectra characterization that the precursor always contains the tetrahedral Ti species and the octahedral Ti species regardless of the Ti content. Calcination of the precursor resulted in a partial condensation of the octahedral Ti species to form the anatase phase.

UV-Vis 光谱表明，Ti-MWW 合成原粉中含有四面体的钛和八面体的钛，而八面体的钛属于一种骨架外钛，未经酸处理而煅烧会使部分八面体钛缩合形成锐钛矿，而经过酸处理和煅烧后的分子筛则几乎不含有锐钛矿。

After the orthorhombic structure was destroyed, the structure rearranged to form anatase lattice.

同时通过控制合适的后处理条件我们可以获得结构稳定的在可见区具有强的光吸收的钛酸盐一维纳米材料。

In the case of anatase, higher light powers generated higher photocurrent values at high applied voltages.

对于锐钛矿薄膜，当施加较高的外电压时，越高的光功率会产生越大的光电流。

The prepared powders were characterized by XRD, UV-Vis, FTIR, N_2 adsorption, Fluorescence spectroscopy, etc. N-doped TiO_2 evidently shows its absorbance shoulder shift into visible light region. Moreover, N-doping retards the transition of TiO_2 from anatase to rutile type as well as restrains the growth of the crystal size which leads to less decrease of surface area. These characteristics are considered to benefit the photoactivity of TiO_2; When all the samples were applied to the photodecomposition of Methylene Blue under visible light(λ＞400 nm), the N-doped TiO_2 show an obvious superiority when compared to the undoped TiO_2, the active hydroxyl groups are found to play a important role in this high photoactivity; When the same experiment was performed under UV light, all the samples show the consistent sequence of photoactivity as in the visible light.

通过UV-Vis、XRD、BET、IR、FL等表征手段测试表明：掺氮不仅使TiO_2的光吸收区域拓展到可见光区，而且有利于延缓TiO_2晶相的转换，从而抑止了高温煅烧下所引起的晶粒增大以及比表面积的降低，且氮源浓度越高，此现象越明显，这些特征都有利于催化剂光催化活性的提高；在主波长大于400nm的可见光催化亚甲基蓝实验当中，掺氮TiO_2的光催化活性明显优越于未掺氮样品，亚甲基蓝在90min内达到88％的脱色率。

The XRD patterns indicate that anatase TiO 2 transforms to rutile at elevated temperature,and pseudobrookite is formed at 700℃.

本文采用溶胶凝胶法合成了掺铁TiO2 复合光催化剂，以正庚烷作为气相有机污染

Results showed that the size of particles was in the range of 10~30 nm and all the particles were anatase crystals having shapes of rectangle, spindle and puncheon, etc.

结果表明：所得颗粒大小为10~30nm，形状有长方形、纺锤形、短柱形等，且颗粒均为锐钛矿型晶体。

Nanometer TiO2 thin films were prepared by means of a sol-gel process with [Ti4] as the precursor and characterized by XRD, TG-DTA, TEM and PL spectra. XRD results show that the referentially oriented(101) anatase films were formed.

以钛酸正丁酯[Ti4]为前驱体，采用溶胶-凝胶法制备Tb(上标 3+)和Gd(上标 3+)共掺杂的纳米TiO2发光薄膜，并探讨了Gd(上标 3+)对Tb(上标 3+)的增敏作用机理。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。