Preparation of nanospinels La1-X Sr XCrO3 using hydrothermal method and their applications on removal of azo dye from aqueous solutions
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 6, Issue 4
Abstract
In The present study, nanoparticles of perovskite-type La1-X Sr XCrO3 (LSCO) were prepared by Hydrothermal method in the presence of NaOH as a chelating agent. A series of common analytical techniques were used to characterize of the nanopowders. Thermal decomposition process of the complex precursor was examined by means of thermal gravimetric analysis (TGA). The surface morphology and composition of these nanopowders were also investigated using scanning electron microscopy (SEM). X-ray diffraction (XRD) patterns showed that single perovskite phase has been completely formed after calcinations treatment and transmission electron microscopy (TEM). The average particle size of LSCO is about 30 nm. The Fourier transform infrared (FT-IR) spectra were also measured for studying of structure of prepared nanopowders. The nanoparticles showed the excellent adsorption properties towards Bromo thymol blue (C27H28Br2O5S).The adsorption studies have been carried out at different pH values, initial dye concentration and adsorbent doses to the optimum conditions. the removal of BTB above 88% was achieved. The Kinetic studies indicate that the removal process obeys the secondorder kinetic equation. Also, The experimental isotherms were analyzed with four parameters equations (Freundlich, Langmuir, Temkin, and Redlich–Peterson) using linear regression.
Authors and Affiliations
Maryam Maskanati, Haman Tavakkoli
Keywords
Related Articles
- EP ID EP38386
- DOI -
- Views 161
- Downloads 0
Effects of nitrogen sources and their split application on some soil properties and tissue nitrogen and sulfur content of rice in Gambella, Ethiopia
Soil and tissue testing are the most reliable ways to assess soil nutrient status to determine fertilizer needs of crop plants. Thus, this field experiment was conducted to study the effect of N fertilizer sources [NH4N...
The study of adaptability and results of medicinal plants cultivation in the conditions of fars province collection
This research was aimed at studying economical and functional considerations, creating live gene bank of medicinal plants (collection) as well as investigation of collective cultivation and breeding of aborigine and exo...
Comparing flow simulation in composite sections with vegetation coverage on the floodplains in ssiim, laboratory and phoenix models
There are many models for flow simulation, which according to the complications that happen in various situation, have their own precision and of course limitations. Due to this variation, choosing model type, has beco...
Reproductive biology and growth of greater forkbeard Phycis blennoides (Brünnich, 1768) in western algerian coasts (Osteichthyes, Gadidae)
The Great forkbeard, Phycis blennoides (Brünnich, 1768), is a species widely distributed throughout the Mediterranean Sea and although it is of great importance for fishing industry, little is known about its reproduct...
Indirect speciation of Cr (VI) and Cr (III) in water and food samples using newly synthesized amberlite XAD-7 functionalized resin
The availability of good quality water is essential for avoiding diseases and improving the quality of life. The increase in both industrial activities and human population has adversely affected several aspects of the e...