Ultrasonic Degradation of Fuchsin Basic in Aqueous Solution: Effects of Operating Parameters and Additives

Lan, Rui‐Jia; Li, Ji‐Tai; Chen, Baohua

doi:10.1155/2013/893131

Cited by 19 publications

(4 citation statements)

References 38 publications

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“…pH of the solution has an important implications on the sonochemical process. It can influence, at the same time, the chemical structure of adsorbent, absorbat as well as the mechanism of sonocatalysis and therefore the performance of the sonochemical process [30][31][32][33].…”

Section: Ph Variations In Removal Of Food Dyes E127 and E132 In The Cmentioning

confidence: 99%

Degradation of C.I. Acid Red 51 and C.I. Acid Blue 74 in Aqueous Solution by Combination of Hydrogen Peroxide, Nanocrystallite Zinc Oxide and Ultrasound Irradiation

Brahim¹,

Belmedani²,

Haddad³

et al. 2018

Journal of Advanced Oxidation Technologies

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This study illustrates the degradation of food dyes, C.I. Acid Red 51 (erythrosine E127) and C.I. Acid Blue 74 (indigo carmine E132) by sonocatalysis using an ultrasonic frequency of 37 kHz and a power of 150 W in the presence of heterogeneous catalysts ZnO and peroxide hydrogen (H2O2). The adsorption process for the two dyes on the ZnO nanocrystalline which satisfies the Freundlich model appears not effective because the elimination of the two food dyes does not exceed 35%.In order to improve the removal, the sonocatalytic process (AD-OX) has been investigated. At this purpose, effect of operating parameters such as initial dye concentrations, H2O2 (0-0.75M) and initial pH on the sonochemical degradation was investigated. It was observed that when the adsorption-catalysis was assisted by the ultrasonic and H2O2 a considerable yields has been achieved and about 86% and 97% of E127 and E132 were removed for 10 mg L -1 and 50 mg L -1 respectively.To understand the behavior of dye degradation, structure of the zinc catalyst before and after the sonocatalytic process was characterized by mean X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM).Results showed that the ZnO particles before and after sonocatalysis were crystallized in the hexagonal wurtzite phase and the size distribution indicates that most of the particles are in the range of 300 and 600 nm. Finally, ADMI and COD analysis were performed in order to quantify the residual color in solution and evaluate the efficiency of the dye mineralization. Results showed that the treatment of food dyes by US-ZnO-H2O2 process increased color degradation (ADMI) and mineralization efficiency (COD) by more than 50% and 76% respectively. problem causing harmful effects on human health and environmental pollution. Food dyes are not toxic but their degradation generate byproducts such as release of aromatic amines [2] which are suspected to be directly or indirectly responsible of several diseases such as endocrine disrupters, anemia nausea, hypertension, cancer, allergies [2]. Thus food dyes and colored effluent must be subject to regular controls [3-5] and treated before their discharge. Although, rigorous standard were established, the tolerance limit of the color change of the receiving environment should not exceed 100 mg Pt.L -1 (platinum-cobalt) [6], and the maximum daily intake (ADI) tolerated in humans is ranging between 30 and 500 ppm [7]. At this purpose, enormous efforts have been made to eliminate food dyes from effluents and conventional methods are often expensive for their implementation and maintenance, and fail to achieve a desired high yield [2,8,9]. Adsorption and oxidation are the most important processes used in industry for the treatment of food dyes [10] but unfortunately, most adsorbents have low adsorption capacity [11]. The advanced oxidation processes (AOPs) have proven and shown to be effective against various colorful and toxic pollutants. They rely on the formation of hydroxyl radica...

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Section: Ph Variations In Removal Of Food Dyes E127 and E132 In The Cmentioning

confidence: 99%

Degradation of C.I. Acid Red 51 and C.I. Acid Blue 74 in Aqueous Solution by Combination of Hydrogen Peroxide, Nanocrystallite Zinc Oxide and Ultrasound Irradiation

Brahim¹,

Belmedani²,

Haddad³

et al. 2018

Journal of Advanced Oxidation Technologies

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“…A calibration curve was obtained by measuring the optical density of different known dye concentrations at 542 nm using a UV-Vis spectrophotometer (Shimadzu 1601, Japan). 13 Chemdraw Ultra 8.0 soware was used for the construction of the chemical structure of the dye. The chemical structure of the dye is as follows:…”

Section: Collection and Preparation Of The Adsorbent And Adsorbatementioning

confidence: 99%

Utilization of Euryale ferox Salisbury seed shell for removal of basic fuchsin dye from water: equilibrium and kinetics investigation

et al. 2017

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“…The hydrophobic character is a feature of BF molecules when occurs at a higher pH value, but at low pH values, its hydrophilicity and solubility are enhanced because the amino group of BF reaches the ionized state [23].…”

Section: Introductionmentioning

confidence: 99%

Adsorption Study and Removal of Basic Fuchsin Dye from Medical Laboratory Wastewater Using Local Natural Clay

Radha

Shwan

Kaufhold

2023

Adsorption Science & Technology

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Local natural clay from Sulaimani zone-Takiya (TKC), Kurdistan Region of Iraq, was characterized and used for the removal of basic fuchsin (BF) dye from laboratory bacterial wastewater. The characterization of the adsorbent was carried out with XRD, XRF, and FT-IR. The clay sample was dominated by vermiculite. Adsorption tests under different conditions of contact time, pH of the solution, temperature, initial dye concentration, and adsorbent amount were performed to analyze the effect of various experimental parameters. Equilibrium time was reached within 180 minutes, and maximum BF adsorption was achieved at pH 6.8 at a temperature ranging from 20 to 50°C. The experimental data fitted the pseudo-second-order kinetic model, with the activation energy of 22.68 kJ·mol-1. Adsorption isotherms could be well-fitted by the Langmuir isotherm model. The thermodynamic parameters such as Δ G ° , Δ H ° , and Δ S ° were determined, and the negative values of Δ G ° indicated that adsorption was spontaneous at all temperatures. Furthermore, the values of Δ H ° indicated an endothermic reaction. Wastewater contaminated by BF dye from the bacterial laboratory was collected (BF concentration: 160 mg·L-1) and treated by TKC. The resulting concentration of BF after adsorption was 4.76 mg·L-1. The maximum amount of dye adsorbed is about 149.2 mg/g or 0.44 mmol/g, which is close to the range of the cation exchange capacity (CEC) value of the vermiculite which indicated that cation exchange was the dominant adsorption mechanism.

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Ultrasonic Degradation of Fuchsin Basic in Aqueous Solution: Effects of Operating Parameters and Additives

Cited by 19 publications

References 38 publications

Degradation of C.I. Acid Red 51 and C.I. Acid Blue 74 in Aqueous Solution by Combination of Hydrogen Peroxide, Nanocrystallite Zinc Oxide and Ultrasound Irradiation

Degradation of C.I. Acid Red 51 and C.I. Acid Blue 74 in Aqueous Solution by Combination of Hydrogen Peroxide, Nanocrystallite Zinc Oxide and Ultrasound Irradiation

Utilization of Euryale ferox Salisbury seed shell for removal of basic fuchsin dye from water: equilibrium and kinetics investigation

Adsorption Study and Removal of Basic Fuchsin Dye from Medical Laboratory Wastewater Using Local Natural Clay

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