Volume 26, Issue 139 (8-2016)                   J Mazandaran Univ Med Sci 2016, 26(139): 126-136 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Bazrafshan E, Noorzaei S, KordMostafapour F. Photocatalytic Degradation of Aniline in Aqueous Solutions Using Magnesium Oxide Nanoparticles . J Mazandaran Univ Med Sci 2016; 26 (139) :126-136
URL: http://jmums.mazums.ac.ir/article-1-8147-en.html
Abstract:   (6857 Views)

Background and purpose: Aniline is widely used as raw material in many chemical industries. The aim of this study was to survey the photocatalytic degradation of aniline using magnesium oxide nanoparticles from aqueous solutions.

Materials and methods: An experimental study was carried out in a 2 L volume batch reactor. Various parameters such as pH (3-11), dose of nanoparticles (0.1-1), contact time (15-120 min), initial aniline concentration (5-250 mg/L) and irradiation source power (8, 15 and 30 W) were investigated. The concentration of residual aniline was measured by UV spectrophotometer at λmax of 198 nm.

Results: The results showed that photocatalytic process of nMgO+UV could effectively remove aniline from effluent. The optimal solution pH and dose of nanoparticles for 8 W, 15 W and 30 W UVA lamp were 7.0 and 0.6 g/L, 7 and 0.4 g/L, and 7 and 0.4 g/L, respectively. In 30 min optimum contact time the photocatalytic degradation efficiency decreased when the concentration of aniline was increased. In optimum conditions (5 mg/L of aniline and 30 min reaction time) the aniline removal efficiency was 90.63 % and COD removal was 87.02%.

Conclusion: The photocatalytic process of nMgO+UV can be used as a suitable technique for aniline removal from aqueous solutions.

Full-Text [PDF 869 kb]   (2557 Downloads)    
Type of Study: Research(Original) | Subject: Health Professiona

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Journal of Mazandaran University of Medical Sciences

Designed & Developed by : Yektaweb