Silver;titanium;dihydrate

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属有机体
• 英文名称: Silver;titanium;dihydrate
• 化学式: AgO₂Ti
• 分子量: 187.747
• InChiKey: LMWBMVDFJQHLLR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.65
• 重原子数：
  4
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  2
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  titanium(IV) (triethanolaminato)isopropoxide 、 silver nitrate 以 N,N-二甲基甲酰胺 、 异丙醇 为溶剂， 反应 1.75h， 生成 Silver;titanium;dihydrate
  参考文献：
  名称：

  Spectroscopic investigations on the interactions of AgTiO2 nanoparticles with lysozyme and its influence on the binding of lysozyme with drug molecule

  摘要：

  Binding of lysozyme with AgTiO2 nanoparticles was analyzed by using absorption, fluorescence, time resolved and synchronous fluorescence measurements. In the presence of AgTiO2 nanoparticles, the fluorescence intensity of lysozyme was decreased. Static type of binding was confirmed through lifetime and ground state absorption measurements. From the fluorescence quenching data, the binding constant and the number of binding sites were found to be 1.5 x 10(4) M-1 and 1.03, respectively. From the synchronous fluorescence spectroscopic measurements, tryptophan residue in lysozyme was found to have interaction with the nanoparticles. Further, the influence of AgTiO2 nanoparticles on the binding strength of lysozyme with a drug molecule was analyzed through fluorescence quenching methods. The presence of nanoparticles decreases the binding capability of drug with protein. Overall, the observed results will provide basic insights on the utilization of nanoparticles in drug delivery applications. (C) 2015 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.saa.2015.07.066

文献信息

• Structural characterization of Ag-doped TiO₂ with enhanced photocatalytic activity
  作者：Lidiaine M. Santos、Werick A. Machado、Marcela D. França、Karen A. Borges、Roberto M. Paniago、Antonio O. T. Patrocinio、Antonio E. H. Machado

  DOI：10.1039/c5ra22647c

  日期：——

  species, such as Ag2+ and Ag3+. X-ray diffractograms and Raman spectroscopy confirm that the crystalline structure of the TiO2 matrix corresponds to the anatase polymorph; however, the presence of the dopant leads to an increase in the system disorder due to a higher concentration of oxygen vacancies, as also confirmed by XPS. TiO2–Ag 5.0% exhibited the highest photocatalytic activity towards mineralization

  使用基于溶胶-凝胶技术的简单且经济高效的方法，制备了具有不同金属含量（0.5、2.0和5.0％m / m）的Ag掺杂的TiO 2纳米颗粒，然后进行了热处理。在Ti（IV）分子前体的水解/缩合过程中添加Ag +离子会导致Ag +阳离子在二氧化钛基体上均匀分散。作为银的量增加时，所得到的二氧化钛2纳米颗粒表现出更小的颗粒尺寸（从为27nm裸的TiO 2为二氧化钛12纳米2-Ag 5.0％）和更大的表面积。X射线光电子能谱（XPS）确认期间在400℃下进行5小时得到的粉末的烧结步骤中，约 34％的银含量通过Ag 2 O的热分解转化为Ag 0。 数据还表明存在高度氧化的银物质，例如Ag 2+和Ag 3+。X射线衍射图和拉曼光谱证实，TiO 2基质的晶体结构对应于锐钛矿多晶型物。然而，XPS也证实，由于较高的氧空位浓度，掺杂剂的存在导致系统混乱的增加。二氧化钛2在最佳pH条件（pH = 6.9）下，–Ag
• Distortion induced band gap and phase transformation in Ti x Ag (1−x) O 2 system
  作者：Mohan Chandra Mathpal、Anand Kumar Tripathi、Promod Kumar、Vivek Agrahari、Manish Kumar Singh、Arvind Agarwal

  DOI：10.1016/j.cplett.2014.09.035

  日期：2014.10

  The polymorphic crystallization and optical properties of Ag-doped TiO2 nanoparticles have been investigated. Sol-gel method has been used to prepare anatase, rutile, and the anatase-rutile mixed phase of TiO2 nanoparticles by Ag doping on Ti(4+) sites. The doped TiO2 nanoparticles exhibit different phase of TiO2 for the different concentration of dopants. The Ag-doping affects the luminescence and morphological properties of TiO2 nanoparticles. The anatase to rutile phase transformation temperature (ART) has reduced significantly. The Ag doping in TiO2 lattice gives a large red shift for a particular concentration of Ag dopants. (C) 2014 Elsevier B.V. All rights reserved.