Photocatalytic degradation of methyl red dye by silica nanoparticles

Badr, Y.; El-Wahed, M. G. Abd; Mahmoud, Mohamed A.

doi:10.1016/j.jhazmat.2007.10.020

Cited by 154 publications

(75 citation statements)

References 57 publications

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“…Some examples of agrowaste that have been used for the removal of dyes are palm kernel fibers [12] , coir pith [13] , sugarcane bagasse [14] , banana peel [15] , peanut hull [16] , rice bran and wheat bran [17] , rice husk [18] , tea waste [19] , waste apricot [20] , rubber seed coat [21] , coconut shell [22] , apple pomace and wheat straw [23] , halzelnut shell [24] , plum kernel [25] , corncob and barley husk [26] , bamboo [27] , grass waste [28] , pumpkin seed hull [29] and garlic peel [30] . Methyl Red (MR) is a commonly used monoazo dye in laboratory assays, textiles and other commercial products; however, it may cause eye and skin sensitization [31] and pharyngeal or digestive tract irritation if inhaled or swallowed [32] . Furthermore, MR is mutagenic under aerobic conditions: it undergoes biotransformation into 2-aminobenzoic acid and N-N'-dimethyl-p-phenylene diamine [4,[33][34][35][36] .…”

Section: Introductionmentioning

confidence: 99%

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

Haris¹,

Sathasivam²

2009

American J. of Applied Sciences

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Problem statement:The aim of this study was to investigate the removal of methyl red, a mutagenic monoazo dye, from various aqueous solutions using banana pseudostem fibers of the size 212-350 micron. Approach: The parameters studied were the effect of pH, amount of adsorbent, contact time, concentration of adsorbate and agitation speed. Results: Equilibrium data were fitted to the Langmuir and Freundlich isotherm models. The data were best represented by the latter with an adsorption capacity and adsorption intensity of 0.351 and 0.302, respectively. Conclusion/Recommendations: Specific rate constants of the processes were calculated by kinetic measurements and a pseudo second order adsorption kinetics was obtained for all cases.

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Section: Introductionmentioning

confidence: 99%

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

Haris¹,

Sathasivam²

2009

American J. of Applied Sciences

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“…A quantitative estimation of dye concentration spectrometric observation when recorded only at the experimental determines  max value which is 540 o A [20][21][22].…”

Section: Photo-degradation Of Dyesmentioning

confidence: 99%

Synthesis, Characterization and Application of Cu-TiO2 Nanaocomposites in Photodegradation of Methyl Red (MR)

Kumar¹,

Hitkari²,

Gautam³

et al. 2015

International Advanced Research Journal in Science, Engineering

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TiO 2 is used as photo catalyst because of its high oxidation power, stability and non toxicity.Cu-TiO 2 nanocomposites was prepared by a adopting the solution impregnation method. After characterization for crystalline phase and particle size by XRD analysis, SEM analysis was carried out to seen morphology of samples, Surface area of TiO 2 and Cu-TiO 2 were analysed by BET. Both the prepared TiO 2 and synthesized Cu-TiO 2 nanocomposites were used as photo catalyst in the photo-degradation of methyl red. The Photo-degradation of methyl red in the presence of pure TiO 2 and synthesized Cu-TiO 2 was done. The Photo-degradation of methyl red were investigated at different condition of temperature, concentration and pH. The effective photo-degradation was found in case of methyl red in the presence of Cu-TiO 2 as compared to pure TiO 2 at different conditions. Photo-degradation of methyl is following the pseudo first order kinetics.

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“…Some of the dyes are toxic, carcinogenic, reported to have connections with different respiratory disorders worldwide and induces pollution to the environment [3,4]. Various techniques have been developed in investigation of processes of pollutant removal [5].…”

Section: Introductionmentioning

confidence: 99%

Sorptive Removal of Methyl Green from Aqueous Solutions using Activated Bentonite

2017

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Bentonite clay from Maghnia (North West Algeria) has been acid-activated. The activated bentonite was employed as adsorbent for the removal of methyl green from aqueous solutions using adsorption method. The influence of several parameters (kinetics, contact time, sorbent amount, adsorbate concentration and pH) on the adsorption capacity was evaluated and discussed. The Langmuir adsorption model was applied to experimental equilibrium data and the isotherm constant was calculated. The results indicated that the adsorption was favourable at neutral pH. This model provided the best fit to the experimental data with high correlation coefficient (R 2 = 0.996). The monolayer adsorption capacity of activated bentonite found to be 353.33 mg/g. It was seen that pseudo-first order equation describes the adsorption kinetics. The results indicated that this bentonite-type clay is potential to be used as an economical adsorbent for the removal of methyl green dye.

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Photocatalytic degradation of methyl red dye by silica nanoparticles

Cited by 154 publications

References 57 publications

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

The Removal of Methyl Red from Aqueous Solutions Using Banana Pseudostem Fibers

Synthesis, Characterization and Application of Cu-TiO2 Nanaocomposites in Photodegradation of Methyl Red (MR)

Sorptive Removal of Methyl Green from Aqueous Solutions using Activated Bentonite

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