Evaluation of degradation kinetic and photostability of immobilized TiO2/activated carbon bilayer photocatalyst for phenol removal

Bahrudin, Noor Nazihah

doi:10.1016/j.apsadv.2021.100208

Cited by 26 publications

(7 citation statements)

References 38 publications

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“…Only several reports have shown a well-suitable application of the PSO model for the PCD to date. [54][55][56][57][58] For example, the calculation in the Ernawati group's report indicated that experimental data from PCD of methylene blue on CaTiO 3 photocatalyst exhibit good compliance with the PSO kinetic model. 54 The compliance with this model promoted chemical sorption between adsorbent and adsorbate involving valence forces through sharing or exchanging electrons, bringing about a non-equilibrium of adsorption and desorption.…”

Section: The Pseudo-order Kinetic Modelmentioning

confidence: 99%

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Kinetics of photocatalytic degradation of organic compounds: a mini-review and new approach

Tran¹,

Nguyen

Phương³

et al. 2023

RSC Adv.

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Section: The Pseudo-order Kinetic Modelmentioning

confidence: 99%

“…Over this level, the light absorption of organic compounds signicantly contributes to the attenuation of light intensity, resulting in a demotion of PCD rate. 55,65,85,86 Relationship ( 20) is typically applied to express an inverse proportion of C P,0 and rate constant according to PFO model.…”

Section: Effect Of Other Factorsmentioning

confidence: 99%

Kinetics of photocatalytic degradation of organic compounds: a mini-review and new approach

Tran¹,

Nguyen

Phương³

et al. 2023

RSC Adv.

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“…It was found that electrical charge property of photocatalyst and substrate play a vital role in photocatalysis (Bahrudin, 2022). Therefore, catalytic degradation of Emamectin benzoate was investigated under the in uence of pH by varying the pH of solution from 3-12 with Britton Robinson buffer solution.…”

Section: Effect Of Phmentioning

confidence: 99%

Enhancement of photocatalytic activity of Ba-doped CoO for degradation of Emamectin benzoate in aqueous solution

Khalid,

Haq,

Naqvi

et al. 2023

Environ Monit Assess

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The present study was focused on the preparation of cobalt oxide (CoO) and barium doped cobalt oxide (Ba doped CoO) by following co-precipitation method for the degradation of Emamectin benzoate pesticide in aqueous medium. The prepared catalysts were characterized using SEM, EDX and XRD to con rm the formation of catalysts and to observe the variation in the composition of catalysts during degradation study. The degradation of Emamectin benzoate pesticide was studied under the in uence of different factors like solution pH, dose of catalyst, contact time, temperature and initial concentration of pesticide. It was observed that solution pH affects the degradation of pesticide and maximum degradation was found at pH 5 and 6 using CoO and Ba doped CoO respectively. The degradation of pesticide was found to be increases continuously with time of contact and decreases with increase in temperature. Likewise, at the beginning, degradation was observed to be increases up to some extent with dose of catalyst and initial concentration of pesticide but started decreases with further augmentation in the dose of catalyst and initial concentration of pesticide. It may be concluded from this study that doping of Ba considerably enhanced the photocatalytic ability CoO for Emamectin benzoate pesticide.

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“…The kinetic modeling of the photocatalytic degradation of azadirachtin under the optimized conditions has been represented by Figure 7. Photocatalysis is one of the forms of heterogeneous catalysis involving an electronic transfer process, commonly described by the Langmuir-Hinshelwood model (LH) [24].…”

Section: Influence Of Oxygen In the Airmentioning

confidence: 99%

Solar Photocatalysis of A Pesticide in A Tubular Reactor on Titaniferous Sand as A New Semi-Conductor

Diop¹,

Ba²,

Faye³

et al. 2023

ACES

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This present study comes in addition to overcome the problems of separation of fine particles of TiO 2 in heterogeneous photocatalysis after treatment. It aims to show the potential for using titaniferous sand as a new semiconductor under solar irradiation. The photocatalytic efficiency of this titaniferous sand was tested on a pesticide (Azadirachtin). A tubular photocatalytic reactor with recirculation of the polluting solution was designed for the elimination of the pesticide in an aqueous solution. Before its use as a photocatalyst, the titaniferous sand has undergone a specific treatment that consists of calcination at 600˚C followed by extraction of the calcined natural organic materials, which can interfere with the measurement of analytical parameters such as COD. The titaniferous sand was also characterized by X-ray fluorescence spectroscopy (XRF). XRF analyses have shown that TiO 2 is predominant in the titaniferous sand with a percentage that has been estimated at 46.34%. The influence of various experimental parameters such as the flow rate of the polluting solution, the concentration of titaniferous sand, the presence of oxygen and the intensity of the overall rate of sunshine, was studied to optimize the photocatalytic degradation of the pesticide. The results showed that the highest removal rate (70%) was observed under the following conditions: a pH of 6, a titaniferous sand concentration of 150 g/L, a flow rate of 0.3 mL/min, and a sunshine rate of 354 W/m 2 and in the presence of atmospheric oxygen. Under these experimental conditions, the rate of photodegradation of the pesticide follows the pseudo first order kinetic model of Langmuir Hinshelwood with a coefficient of determination R 2 of 0.9869 and an apparent rate constant of 0.0029 min −1 . The results clearly demonstrated the potential of titaniferous

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Evaluation of degradation kinetic and photostability of immobilized TiO2/activated carbon bilayer photocatalyst for phenol removal

Cited by 26 publications

References 38 publications

Kinetics of photocatalytic degradation of organic compounds: a mini-review and new approach

Kinetics of photocatalytic degradation of organic compounds: a mini-review and new approach

Enhancement of photocatalytic activity of Ba-doped CoO for degradation of Emamectin benzoate in aqueous solution

Solar Photocatalysis of A Pesticide in A Tubular Reactor on Titaniferous Sand as A New Semi-Conductor

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