Low-Cost Photo-Fenton-Like Process for the Removal of Synthetic Dye in Aqueous Solution at Circumneutral pH

Manaa, Zoubir; Chebli, Derradji; Bouguettoucha, Abdallah; Atout, Hicham; Amrane, Abdeltif

doi:10.1007/s13369-019-04101-4

Cited by 5 publications

(4 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rate constant and half-life are shown in the Table 3 for this pseudo-first-order degradation. The same conclusion is reported by several other studies in the literature (Shuai et al, 2018;Manaa et al, 2019). On the other hand, the pseudo-second-order kinetic is remarkably inadequate to fit the experimental results (R 2 = 0.54).…”

Section: Kinetic Modellingsupporting

confidence: 87%

“…In most reported studies, the AOP experiments have been developed in batch systems, usually by adapting glass beakers or Erlenmeyer flasks as reactors (Farré et al, 2006;Bali et al, 2007;Fragoso et al, 2009;Silva et al, 2009;Guimarães et al, 2012;Módenes et al, 2012;Khataee et al, 2016;Starling et al, 2017;Guo et al, 2018;Rubeena et al, 2018;Manaa et al, 2019;Mittersteiner et al, 2020;). Although this alternative is capable of providing essential data for the optimization of operating conditions, the batch reactor is rare when it comes to industrial applications, where processes with flowing streams are much more common.…”

Section: H2o2 Photolysis (Equationmentioning

confidence: 99%

“…Countless published studies have demonstrated promising aspects of advanced oxidation processes (AOP) for the degradation of organics pollutants (Fragoso et al, 2009;Guimarães et al, 2012;Vedrenne et al, 2012;Basturk et al, 2015;Abhilasha et al, 2016;Leite et al, 2016;Starling et al, 2017;Manaa et al, 2019;Mittersteiner et al, 2020). In that technique, the organic molecule undergoes successive oxidative breakings through a chain reaction initiated with highly reactive radicals, particularly the hydroxyl (•OH) and hydroperoxyl (•OOH).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Low-cost flow photoreactor for degradation of Reactive Black 5 dye by UV/H2O2, Fenton and photo-Fenton processes: a performance comparison

Silva¹,

Santos²,

Santos³

et al. 2021

Rev. ambiente água

View full text Add to dashboard Cite

In this work, a flow photoreactor was designed and set up using low-cost and recyclable parts to develop chemical treatments based on advanced oxidation processes (AOP) of highly colored textile wastewater. To evaluate this sustainable system´s efficiency, we investigated and compared the performance of three types of destructive methods (UV/H2O2, Fenton, and photo-Fenton) on the decolorization of aqueous solutions of Reactive Black 5 dye (RB5). We also analyzed the effect of the oxidant and dye concentrations on the rate of color removal in each one of the three methods. The results showed that, regardless of the initial operating conditions, the photo-Fenton process achieved the highest degradation rates, particularly when the highest ratio between the oxidant and dye concentrations was used ([H2O2]: [RB5] = 24.5 mg L-1: 25 mg L-1), leading to complete color removal within only 10 minutes of reaction. With the same initial condition, the Fenton and UV/H2O2 processes were also capable of removing the color entirely, even though they demanded more extended runs of 25 min. and 45 min., respectively. The effect of pH on the decolorization by the photo-Fenton process was also investigated, showing the same high performance at pHs 3 and 4. The degradation profile achieved by the photo-Fenton treatment was appropriately fitted by a pseudo-first-order kinetic. The non-expensive photoreactor proved to be quite useful for the degradation of the RB5, mainly when this azo dye underwent the photo-Fenton process.

show abstract

Section: Kinetic Modellingsupporting

confidence: 87%

Section: H2o2 Photolysis (Equationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Low-cost flow photoreactor for degradation of Reactive Black 5 dye by UV/H2O2, Fenton and photo-Fenton processes: a performance comparison

Silva¹,

Santos²,

Santos³

et al. 2021

Rev. ambiente água

View full text Add to dashboard Cite

show abstract

“…Figure 11 shows that the removal efficiency was also decreased with rising DB15 concentration. Because •OH generation is reduced under high dye concentrations due to blocking of catalyst active site by dye molecules and prevent H2O2 catalysis [37]. Additionally, dye molecules serve as light filters to inhibit H2O2 decomposition and stop catalysts from being activated by light [37].…”

Section: Interaction Effect Of Db15 Concentration and H2o2 Dosagementioning

confidence: 99%

Application of UV-A light Operating Photoreactor for Green Degradation of Direct Blue 15 through the Photo-Fenton-like process: Effects and Box-Behnken Optimization

2023

View full text Add to dashboard Cite

In this research, green catalytic iron/copper nanoparticles loaded on bentonite were prepared by the green method using eucalyptus leaves extract as a reducing and capping agent (E-Fe/Cu@B-NPs). The characterization methods were employed on E-Fe/Cu@B-NPs, the NPs results were porous with a spherical shape when analysed by scanning electron microscopy (SEM), the BET analysis showed that the surface area of particles was 28.589m 2 /g. The functional groups of the E-Fe/Cu@B-NPs were also verified using Fourier transform infrared (FT-IR) spectroscopy. Degradation of direct blue 15 dye (DB15) was then investigated by E-Fe/Cu@B-NPs through photo-Fenton-like. The parameters such as pH, H 2 O 2 dosage, initial DB15 concentration, and UV-intensity were studied through batch experiments and optimized through response surface methodology (RSM) using the Box-Behnken design (BBD). The results showed that the dye removal reached 100% within 60 minutes with optimum, pH 3.5, H 2 O 2 dosage of 7.5 mmol/L, DB15 concentration 100 mg/L and UV-intensity of 15 W/m 2 . The kinetic study indicated that the DB15 degradation kinetic was fitted to the second-order kinetic model.

show abstract

Fenton Process in Dye Removal

dos Santos,

Oro,

Wancura

et al. 2022

Sustainable Textiles: Production, Processing, Manufacturing &Amp; Chemistry

View full text Add to dashboard Cite

Low-Cost Photo-Fenton-Like Process for the Removal of Synthetic Dye in Aqueous Solution at Circumneutral pH

Cited by 5 publications

References 35 publications

Low-cost flow photoreactor for degradation of Reactive Black 5 dye by UV/H2O2, Fenton and photo-Fenton processes: a performance comparison

Low-cost flow photoreactor for degradation of Reactive Black 5 dye by UV/H2O2, Fenton and photo-Fenton processes: a performance comparison

Application of UV-A light Operating Photoreactor for Green Degradation of Direct Blue 15 through the Photo-Fenton-like process: Effects and Box-Behnken Optimization

Fenton Process in Dye Removal

Contact Info

Product

Resources

About