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Paper Information

Journal:   JOURNAL OF NEW MATERIALS   spring 2019 , Volume 9 , Number 3 (35) #f00649; Page(s) 145 To 168.
 
Paper: 

Synthesis, Characterization and investigation of removal process of methylene blue dye by perovskite-type oxides nanoparticles La0. 9Sr0. 1FeO3

 
 
Author(s):  payami fatemeh, Tavakkoli Haman
 
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Abstract: 
In this study, double oxide nanopowders with perovskite type La0. 9Sr0. 1FeO3 were synthesized by sol-gel method in 750 ˚ C for 6 hours. Two factors of citric acid and cetyltrimethyl ammonium bromide (CTAB) were used as a complex agent and surfactant, respectively. The crystalline characterization, morphology, specific surface area, and grain size of nanoparticles were investigated using a series of analytical analyzes such as XRD, SEM, DLS, BET. The X-ray diffraction pattern (XRD) showed that after the calcination, only the pericardial phase with perovskite structure was formed. The obtained material was studied by scanning electron microscope (SEM) and its morphology and particles size range was analyzed. The microstructure of the samples was studied by DLS analysis. By the BET analysis, the porosity of the nanopowder was measured and pores diameter about 75 nm were resulted. After identification and characterization of CTAB-synthesized perovskite, methylene blue dye removal process was investigated. In this process, various parameters such as time, adsorption concentration, dye concentration and pH were studied. By studying and comparing removal percent and adsorption kinetic was revealed that the synthesized nanoparticles were suitable for removal of methylene blue dye.
 
Keyword(s): Nanopowder,Perovskite,Sol-Gel,Adsorption,Methylene Blue
 
References: 
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