Sonophotocatalytic (42kHz) degradation of Simazine in the presence of Au–TiO2 nanocatalysts

Sathishkumar, P.; Mangalaraja, Ramalinga Viswanathan; Mansilla, Héctor D.; Gracia-Pinilla, M.A.; Anandan, Sambandam

doi:10.1016/j.apcatb.2014.06.027

Cited by 52 publications

(19 citation statements)

References 32 publications

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“…They reported that the maximum degradation efficiency aer 2 h treatment was obtained at a TiO 2 concentration of 0.1 g L À1 (78.5%) beyond which the extent of degradation is nearly constant. Similar results were found by Sathishkumar et al 82 for sonophotocatalytic (42 kHz) degradation of Simazine in the presence of Au-TiO 2 nanocatalysts. They reported that the order of Simazine degradation was, sonophotocatalysis > sonocatalysis > photocatalysis.…”

Section: Synergetic Effect Of Ultrasound and Other Degradation Technosupporting

confidence: 89%

Sonochemical degradation of pesticides in aqueous solution: investigation on the influence of operating parameters and degradation pathway – a systematic review

2020

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Section: Synergetic Effect Of Ultrasound and Other Degradation Technosupporting

confidence: 89%

Sonochemical degradation of pesticides in aqueous solution: investigation on the influence of operating parameters and degradation pathway – a systematic review

2020

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“…1) is a selective methylthio-triazine herbicide and widely used for the pre and post emergence control of broadleaf and 5 weeds in plantations of sugarcane, banana, coffee and pineapple [7][8][9]. Because of its toxicity, persistence and accumulation in the environment as well as its effects on the environment and human health, it is listed as a chemical pollutant that needs to be disposed [10]. Particularly, the wastewater in the production of pesticide or the emissions after the accident can also generate a large number of harmful substances.…”

Section: Introductionmentioning

confidence: 99%

Preparation of (5.0%)Er3+:Y3Al5O12/Pt-(TiO2-Ta2O5) nanocatalysts and application in sonocatalytic decomposition of ametryn in aqueous solution

Li¹,

Wei²,

Huang³

et al. 2017

Ultrasonics Sonochemistry

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(5.0%)Er:YAlO/Pt-(TiO-TaO) powder, as a high effective sonocatalyst, was prepared using sol-gel and calcination method. Then it was characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX). In order to evaluate the sonocatalytic activity of the prepared (5.0%)Er:YAlO/Pt-(TiO-TaO) powder, the sonocatalytic decomposition of ametryn was studied. In addition, some influencing factors such as different Ti/Ta molar ratios on the sonocatalytic activity of the prepared (5.0%)Er:YAlO/Pt-(TiO-TaO) powder, catalyst added amount with ultrasonic irradiation time and used times on the sonocatalytic decomposition efficiency were examined by using ion chromatogram determination. The experimental results showed that the best sonocatalytic decomposition ratio of ametryn were 77.50% based on the N atom calculation and 95.00% based on the S atom calculation, respectively, when the conditions of 10.00mg/L initial concentration, 1.00g/L prepared (5.0%)Er:YAlO/Pt-(TiO-TaO) powder (Ti/Ta=1.00:0.25 heat-treated at 550°C for 3.0h) added amount, 150min ultrasonic irradiation (40kHz frequency and 300W output power), 100mL total volume and 25-28°C temperature were adopted. Therefore, the (5.0%)Er:YAlO/Pt-(TiO-TaO) composite nanoparticles could be considered as an effective sonocatalyst for decomposition of ametryn in aqueous solution.

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“…As a matter of fact, the anatase phase of TiO 2 can only absorb UV light for photocatalytic activation. Improving the optical properties by narrowing the band gap of TiO 2 would give a positive impact on the photodegradation ability [7,13]. Table 1 shows that the percentage of Simazine degradations are not 100% even after 7 h of degradation time.…”

Section: Introductionmentioning

confidence: 99%

“…The resistance of Simazine to detoxify with conventional treatment methods can lead to major environmental problems and is suspected of being an endocrine disruptive effect chemical [3]. Therefore, numerous studies have been carried out such as by photocatalysis [4], Fenton's oxidation [2], UV photolysis [5], and biological methods [6] to develop an effective and efficient treatment method for SMZ's removal from water and the soils concerned [7]. Titanium dioxide (TiO 2 ) is a superior photocatalyst with promising application in water treatment and has become the most studied photocatalytic material used to degrade organic compounds [8].…”

Section: Introductionmentioning

confidence: 99%

TiO2 Nanotubes Supported Cu Nanoparticles for Improving Photocatalytic Degradation of Simazine under UV Illumination

et al. 2016

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Nano size Copper (Cu) incorporated TiO 2 nanotubes was successfully synthesized via the anodic oxidation technique in ethylene glycol (EG) containing 0.5 wt % NH 4 F and 1.6 wt % KOH for the photocatalytic degradation of Simazine (2-chloro-4, 6-diethylamino-1,3,5-triazine) under Ultraviolet (UV) illumination. In the present study, the influence of different loading Cu concentrations on the formation of Cu-TiO 2 nanotubes film towards the photocatalytic degradation of Simazine is reported. Based on our study, it was found that the optimum Cu loading concentration was about 0.45 wt % on TiO 2 nanotubes film for approximately 64% photocatalytic degradation of Simazine after 4 h under UV illumination. This finding was mainly attributed to the uniform surface covering of the Cu loaded TiO 2 NTs which acted as electron traps, preventing the recombination of electron hole pairs, eventually leading to higher photocatalytic activity of our photocatalyst in degrading the targeted organic pollutant, Simazine. Moreover, an increased kinetic rate of the degradation to 0.0135 h −1 was observed in the presence of Cu in TiO 2 NTs.

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Sonophotocatalytic (42kHz) degradation of Simazine in the presence of Au–TiO2 nanocatalysts

Cited by 52 publications

References 32 publications

Sonochemical degradation of pesticides in aqueous solution: investigation on the influence of operating parameters and degradation pathway – a systematic review

Sonochemical degradation of pesticides in aqueous solution: investigation on the influence of operating parameters and degradation pathway – a systematic review

Preparation of (5.0%)Er3+:Y3Al5O12/Pt-(TiO2-Ta2O5) nanocatalysts and application in sonocatalytic decomposition of ametryn in aqueous solution

TiO2 Nanotubes Supported Cu Nanoparticles for Improving Photocatalytic Degradation of Simazine under UV Illumination

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