تخریب سونوشیمیائی رنگ آبی آزویی بازی 41 توسط نانو دی اکسید تیتانیوم و پراکسید هیدروژن

عباسی, محمود and رزاقی اصل, نیما (1387) تخریب سونوشیمیائی رنگ آبی آزویی بازی 41 توسط نانو دی اکسید تیتانیوم و پراکسید هیدروژن. Journal of Hazardous Materials ــ 153 (3). pp. 942-947. شاپا 0304-3894

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Sonochemical degradation of Basic Blue 41 dye assisted by nanoTiO2 and H2O2

English Abstract

The sonolysis of Basic Blue 41 dye in aqueous solution was performed at 35 kHz using ultrasonic power of 160W and aqueous temperature of 25+1◦C within 180 min. The TiO2 nanoparticles were used as a catalyst to assist the sonication process. The effect of experimental parameters such as pH, H2O2 concentration and initial dye concentration on the reaction were investigated. It was recognized that in lower pH values the dye removal rate decreased. However, dye removal increased via increase in H2O2 concentration and lowering the initial dye concentration. All intermediate compounds were detected by integrated gas chromatography–mass spectrometry (GC/MS) and also ion chromatograph (IC). During the decolorization, all nitrogen atoms and aromatic groups of Basic Blue 41 were converted to urea, nitrate, formic acid, acetic acid and oxalic acid, etc. Kinetic studies revealed that the degradation process followed pseudo-first order mechanism with the correlation coefficient (R2) of 0.9918 under experimental conditions. The results showed that power ultrasound can be regarded as an appropriate tool for degradation of azo dyes to non-toxic end products.

Item Type:Article
زبان سند : انگلیسی
نویسنده مسئول :محمود عباسی
نویسنده :نیما رزاقی اصل
Additional Information:IF: 2.975 Abstracting and Indexing : Science Citation Index , Science Citation Index Expanded , Current Contents - Engineering, Computing & Technology , BIOSIS , Scopus , ASM , Applied Science & Technology Abstracts , Elsevier BIOBASE , CIS , Cambridge Scientific Abstracts , Centre de Documentation Scientifique et Technique - PASCAL Database Chemical Abstracts Coal Abstracts Current Contents/Engineering, Computing & Technology Laboratory Hazards Bulletin/Chemical Hazards in Industry EMBASE Engineering Index Environmental Periodicals Bibliography NIOSHTIC Système de Documentation et Information Métallurgique
کلیدواژه ها (انگلیسی):Degradation, Ultrasound, Basic Blue 41, Sonolysis, Nanocatalysis
Subjects:QV pharmacology > QV 744 Medicinal Chemistry
Divisions:School of Pharmacy > Department of Medicinal Chemistry
ID Code:5384
Deposited By: Dr Nima Razzaghi-Asl
Deposited On:10 Sep 1393 05:00
Last Modified:10 Sep 1393 05:00

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