Degradation product distribution of Reactive Red-147 dye treated by UV/H2O2/TiO2 advanced oxidation process

Arshad, Rabia; Bokhari, Tanveer Hussain; Javed, Tariq; Bhatti, Ijaz Ahmad; Rasheed, Senan; Iqbal, Munawar; Nazir, Arif; Naz, Saima; Khan, M.I.; Khosa, Muhammad Kaleem; Zia‐ur‐Rehman, Muhammad

doi:10.1016/j.jmrt.2020.01.062

Cited by 68 publications

(29 citation statements)

References 40 publications

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“…In the case of anatase, the overall photodegradation rate is slightly lesser [22]. Optimal amounts of H2O2 and photocatalyst depend on titania type and specific surface, photoreactor geometry, light intensity as well as pollutant type and concentration [6,14,[23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

Danyliuk

Mironyuk

Tatarchuk

et al. 2021

Phys. Chem. Solid St.

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The oxidative degradation of Rhodamine B dye under ultraviolet irradiation was studied. The degradation rate was measured with using of smartphone camera. Photocatalytic degradation of the Rhodamine B dye over the P25-TiO2 catalyst has been found to accelerate substantially in the presence of hydrogen peroxide. The relationship between the photocatalytic degradation rate and H2O2 concentration has been studied. The optimal concentration of H2O2 has been found to in the range of 10-25 mM. The proposed mixture of P25 photocatalyst and H2O2 oxidizer can be used to remove organic pollutions from industrial waste water.

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Section: Introductionmentioning

confidence: 99%

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

Danyliuk

Mironyuk

Tatarchuk

et al. 2021

Phys. Chem. Solid St.

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“…While the AMB concentration remains almost unchanged after 30 min of irradiation (< 3% degradation) in photolysis and decreases by 10% through the dark adsorption, a complete degradation (> 95%) is achieved by photocatalysis. For most organic compounds (Arshad et al, 2020;Ghenaatgar et al, 2019), the photodegradation rate follows a pseudo-first order (Fig. S5b) model and can be linearized as ( 8):…”

Section: Kinetics Of Photocatalytic Degradationmentioning

confidence: 99%

High efficiency photocatalytic degradation of Ambroxol over Mn doped TiO2: Experimental designs, identification of transformation products, mineralization and mechanism

Tab

Dahmane

Belabed

et al. 2021

Science of The Total Environment

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Ambroxol (AMB) is a drug commonly used for chronic bronchitis prevention. Once released in surface water, this recalcitrant chemical becomes a hazardous pollutant.Here, we investigated the ability of 1% Mn-doped TiO 2 (Mn-TiO 2 ) to mineralize AMB by photocatalysis. We studied the morphology, and the physical and electrochemical properties of Mn-TiO 2 using X-ray diffraction, Scanning electron microscopy, Transmission electron microscopy, X-ray fluorescence, BET method, UV-visible, and electrochemical study and optimized the AMB degrading experimental conditions through response surface methodology (RSM). Mn-TiO 2 at the dose of 0.625 g.L -1 allowed the complete photodegradation of AMB (30 ppm) at pH 7 under UVA light irradiation for 30 min while total mineralization in CO 2 (> 96%) was achieved after 24 h of irradiation. Mn-TiO 2 was 1.6-time more efficient than TiO 2 Degussa P25. Product studies were also carried out by liquid 2 chromatography coupled to electrospray high resolution mass spectrometry. Twentyone photodegradation products were detected and identified. In addition, ionic chromatography analyses revealed the release of Br -, NH 4 + , and NO 3 at respectively 97, 63 and 35% of the total Br, and N initially present in AMB. Finally, the reusability of the photocatalyst was also tested. After four cycles, the almost complete photodegradation of AMB was achieved showing that Mn-TiO 2 was highly stable.This work brings new physical characteristics on Mn-TiO 2 photocatalyst. Moreover, it is the first study investigating the photocatalytic degradation of recalcitrant AMB drug.

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“…Consequently, it has close orientation with the polymeric cellulosic chains displaying better substantivity and reactivity. [35][36][37][38]45 Hydroxyl group of cellulose interacts with the reactive groups of selected dyes (triazine and sulfatoethylsulfone) under alkaline dye bath conditions.…”

Section: Structure-activity Relationshipmentioning

confidence: 99%

Hetero-functional azo reactive dyes applied on cellulosic fabric and dyeing conditions optimization to enhance the dyeing properties

Siddiqua

Ali

Muzaffar

et al. 2021

Journal of Engineered Fibers and Fabrics

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New dyestuff moieties are introduced in the textile industry to upgrade the quality and aesthetic properties of dyed fabric. To contribute to this research endeavor, the current project was conducted for the dyeing of cellulosic fabric via new hetero-functional reactive dyes R1 and R2 synthesized in our previous study. Optimization of different process variables (temperature, salt, and alkali concentration) and their interactive study for exhaust dyeing was explored and delineated based on a statistical tool response surface methodology. Results divulged that both dyes displayed maximum exhaustion and fixation at a temperature of 61.50°C on the cellulosic fabric. Reactive dye R1 exhibited 87.62 (±3) exhaustion and 82.85 (±3) fixation percentage at their optimum salt (29.07 g/L) and alkali (32.55 g/L) dosage while R2 displayed 81.50 (±3) exhaustion and 77.21 (±3) fixation at its optimized salt (32.55 g/L) and alkali concentrations (22.84 g/L). All process variables showed a positive and synergistic effect on the dyeing properties. Enhanced exhaustion and fixation percentage of R1 as compared to R2 may be accredited to greater planarity and less steric hindrance of R1. Both dyes presented superb color buildup showing good to excellent color fastness on cotton fabric. Future perspectives of the current study comprised the application and assessment of dyeing parameters of these new reactive dyes on polyester cotton (PC) fabric.

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Degradation product distribution of Reactive Red-147 dye treated by UV/H2O2/TiO2 advanced oxidation process

Cited by 68 publications

References 40 publications

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

High efficiency photocatalytic degradation of Ambroxol over Mn doped TiO2: Experimental designs, identification of transformation products, mineralization and mechanism

Hetero-functional azo reactive dyes applied on cellulosic fabric and dyeing conditions optimization to enhance the dyeing properties

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