:: Volume 3, Issue 2 (Spring, 2016) ::
Environ. health eng. manag. 2016, 3(2): 107-113 Back to browse issues page
Removal of blue cat 41 dye from aqueous solutions with ZnO nanoparticles in combination with US and US-H2O2 advanced oxidation processes
Sohrab Golmohammadi, Mohammad Ahmadpour, Aliakbar Mohammadi, Azim Alinejad, Nezam Mirzaei, Mansour Ghaderpoori , Afshin Ghaderpoori
Students Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran , mghaderpoori@gmail.com
Abstract:   (5385 Views)

Background: The purpose of the present study was to assess the efficiency of ultrasound/hydrogen peroxide processes and ultrasound/hydrogen peroxide/ZnO nanoparticles in the removal of blue cat 41 dye from aqueous solutions.
Methods: ZnO nanoparticles were prepared using the hydrothermal method. Variables including pH, concentration of ZnO nanoparticles, initial dye concentration, concentration of hydrogen peroxide, and contact time were investigated.
Results: H2O2 alone is not effective in dye removal. In conditions of H2O2 = 20 mg/L and US = 30 kHz, removal efficiency rates of 6.5%, 23.5%, 30%, 51.8%, and 55%, respectively, were obtained. The maximum removal efficiency rate was obtained at the nanoparticle concentration of 3 g/l. Also, removal efficiency was reduced when the initial dye concentration was increased.
Conclusion: The combination of nanoparticles and US and H2O2 is very effective in removing blue cat 41 dye. As a result, photo catalytic processes can be considered to effectively remove environmental pollutants.

Keywords: Advanced oxidation process, Ultrasonic waves, ZnO nanoparticles, Hydrothermal, Hydrogen peroxide, Dye
eprint link: http://eprints.kmu.ac.ir/id/eprint/25448
Full-Text [PDF 1100 kb]   (2554 Downloads)    
Type of Study: Research | Subject: General
Received: 2016/07/4 | Accepted: 2016/07/4 | Published: 2016/07/4

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Volume 3, Issue 2 (Spring, 2016) Back to browse issues page