نتایج جستجو برای: manganese titanate
تعداد نتایج: 27319 فیلتر نتایج به سال:
Abstract The polycrystalline strontium ferrate titanate (SrFe 0.1 Ti 0.9 O 3 , SFTO) thin films have been successfully prepared by chemical solution method. By analyzing the current-voltage ( I–V ) characteristics, we discuss conduction mechanism of SFTO. It is found that number oxygen vacancy defects increased Fe ion doping, making SFTO be with better resistive switching property. doping can a...
The deposition of manganese in a water distribution system with manganese-related "dirty water" problems was studied over a 1-year period. Four monitoring laboratories with Robbins biofilm sampling devices fitted to the water mains were used to correlate the relationship among manganese deposition, the level of manganese in the water, and the chlorination conditions. Manganese deposition occurr...
Manganese is capable of forming complex ions with many substances found naturally in the body (1). It seems reasonable to assume, therefore, that manganese injected as MnSO4 (hereafter referred to as "ionic manganese") will be complexed in the body to a varying extent shortly after administration. If the Mn is strongly chelated before it is injected, a state of competition between ligands is se...
The purpose of this study was to estimate daily intake of manganese in Korean adults. Manganese intake was estimated through the use of the database of manganese content in frequently consumed Korean foods after first conducting anthropometric measurement and a survey on dietary intake with 354 Korean adults. Average age, height, weight and body mass index were 54.6 years, 165.7 cm, 67.2 kg and...
Somers and Shive (37) suggested that the physiological availability of iron in plants is determined by the relative manganese supply and that the optimum growth and yield of plants depend on a certain definite proportion rather than the absolute level of iron and manganese supply. These workers also held that iron deficiency is identical with manganese excess and iron excess with manganese defi...
In the Kurdistan Province (west of Iran), manganese mineralization has occurred in several locations including Shahini (south west of Sanandaj), Sianaw (west of Mariwan), Tawakalan (west of Diwandareh) and Golchidar (east of Marivan), but Tawakalan mineralization has characteristics which cannot be interpreted by Petrological principles. This mineralization is located at the end of northwest of...
Titanate nanofibers containing silver have been demonstrated through the experiments reported herein to have effective antifungal and antiproliferative activities in the presence of UV light. The titanate nanofibers containing silver can be fabricated by means of ion exchange followed by a topochemical process in an environment suitable for reductive reactions. Excellent antibacterial, antifung...
Clean-up of wastewaters with coexisting heavy metals and organic contaminants is a huge issue worldwide. In this study, a novel anatase/titanate nanosheet composite material (labeled as TNS) synthesized through a one-step hydrothermal reaction was demonstrated to achieve the goal of simultaneous removal of Cr(VI) and 4-cholophenol (4-CP) from water. TEM and XRD analyses indicated the TNS was a ...
Here we present an investigation on Zn–Ti–O ternary (zinc titanate) nanostructures which were prepared by a combination of electrospinning and atomic layer deposition. Depending on the ZnO and TiO2 molar ratio, two titanates and one mix phased compound were synthesized by varying the post-annealing temperatures. Specifically Zn2TiO4, ZnTiO3 and ZnO/TiO2 nanostructures were fabricated via therma...
Titania nanostructured materials have been used extensively for the fabrication of electrochemical capacitors. However, the devices typically exhibit relatively low capacitance and poor cycling stability. Herein, we report the synthesis of a core-shell heterostructure based on layered titanate nanowires coated with nickel hydroxide nanosheets on a titanium mesh, referred to as K2Ti4O9@Ni(OH)2/T...
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