Sodium tetratungstate/tungsten oxide films prepared with dodecyltrimethylammonium chloride as structuring agent
نویسندگان
چکیده
Abstract
 The multiple forms of structuring transition metal anions in solution are important aspects to be taken into account obtaining oxides these metals by the sol-gel method. formation polyanions aqueous media can produce a variety structures solid state. Films were obtained through method with sodium tungstate as precursor and dodecyltrimethylammonium chloride (DTAC) agent, after calcined at 700 °C air. films, structured nanospheres, composed mainly triclinic tetratungstate monoclinic tungsten oxide. cationic surfactant interacts precursor, affecting films' final morphology, without their crystal structure. Their photocatalytic properties also evaluated.
 Keywords: Colloidal synthesis; sol-gel; photocatalysis.
 Resumo
 Filmes de tetratungstato sódio/óxido tungstênio preparados com cloreto dodeciltrimetilamônio como agente estruturante
 As múltiplas formas estruturação ânions metais transição em solução revelam aspectos importantes ser levados consideração na obtenção seus óxidos pelo método sol-gel. Um desses é formação poliânions meio aquoso, que pode produzir uma variedade estruturas no estado sólido. Desta feita, foram obtidos filmes através do utilizando-se, tungstato sódio e, estruturante, dodeciltrimetil amônio, posteriormente calcinados ºC ar. Observou-se os filmes, estruturados nano esferas, eram compostos principalmente triclínico e óxido monoclínico. Por sua vez, conclui-se o surfactante catiônico interage aquoso afeta morfologia dos obtidos, entanto tem pouca influência nas suas cristalinas. Faz-se importante destacar propriedades fotocatalíticas também avaliadas presente pesquisa.
 Palavras-chave: Síntese coloidal; fotocatálise. 
 Resumen
 Películas sodio/óxido tungsteno preparadas con cloruro dodeciltrimetilamonio estructurante
 Las múltiples estructurar los aniones metales transición en solución son tener cuenta la hora obtener sus por el La formación polianiones medios acuosos puede producir una variedad estructuras Se produjeron películas medio del utilizando sodio y estructurante, luego calcinadas aire. películas, estructuradas nanoesferas, estaban compuestas El tensioactivo catiónico interactúa acuoso afectando morfología las obtenidas, pero tiene poca influencia sobre su estructura cristalina. Fueron evaluadas también propiedades fotocatalíticas.
 Palabras clave: Síntesis fotocatálisis.
منابع مشابه
Hydrothermal Synthesis Of Tungsten Oxide (WO3) Nanostructures Using Sodium Chloride As Structure Directing Agent
Tungsten oxide (WO3) nanostructure were synthesized by a facile hydrothermal method at 150° C using tungstate dehydrates (Na2WO4.2H2O) as the precursor. Without any additive, scanning electron microscopy revealed a rhombus shaped WO3 nanostructures while with the addition of sodium chloride, the morphology changes to nano-dagger bundles that formed flower-like structure. Furthermore, the size o...
متن کاملSynthesis and properties of Prussian blue nanoparticles prepared by using Cetyl Pyridinium Chloride as protecting agent
A new approach for the synthesis of Prussian blue nanoparticles using the cationic surfactant Cetyl Pyridinium Chloride (CPC) as capping agent has been developed in the present work. Powder X-ray diffraction, transmission electron microscopy, UV–vis absorption spectra, and IR spectroscopy were employed to characterize the product. The TEM image showed that the Prussian blue nanoparticles with d...
متن کاملSynthesis and properties of Prussian blue nanoparticles prepared by using Cetyl Pyridinium Chloride as protecting agent
A new approach for the synthesis of Prussian blue nanoparticles using the cationic surfactant Cetyl Pyridinium Chloride (CPC) as capping agent has been developed in the present work. Powder X-ray diffraction, transmission electron microscopy, UV–vis absorption spectra, and IR spectroscopy were employed to characterize the product. The TEM image showed that the Prussian blue nanoparticles with d...
متن کاملPathogenicity of dodecyltrimethylammonium chloride-resistant Salmonella enterica.
Salmonella infection causes a self-limiting gastroenteritis in humans but can also result in a life-threatening invasive disease, especially in old, young, and/or immunocompromised patients. The prevalence of antimicrobial and multidrug-resistant Salmonella has increased worldwide since the 1980s. However, the impact of antimicrobial resistance on the pathogenicity of Salmonella strains is not ...
متن کاملsynthesis and properties of prussian blue nanoparticles prepared by using cetyl pyridinium chloride as protecting agent
a new approach for the synthesis of prussian blue nanoparticles using the cationic surfactant cetyl pyridinium chloride (cpc) as capping agent has been developed in the present work. powder x-ray diffraction, transmission electron microscopy, uv–vis absorption spectra, and ir spectroscopy were employed to characterize the product. the tem image showed that the prussian blue nanoparticles with d...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Revista Eletrônica Científica da UERGS
سال: 2022
ISSN: ['2448-0479']
DOI: https://doi.org/10.21674/2448-0479.83.218-227