Removal of o-Cresol from aqueous solution using Algerian Na-Clay as adsorbent

Herbache, Hayat; Ramdani, Amina; Maghni, Asmaa; Taleb, Zoubida; Taleb, Safia; Morallón, Emilia; Brahmi, Rachid

doi:10.1080/19443994.2015.1108240

Cited by 8 publications

(16 citation statements)

References 32 publications

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“…The disappearance of certain bands in the spectra of the samples is noted. This is the case for Mont‐A and Mont‐AO samples, where the peak located at 1,464 cm −1 in Mont‐Na, characteristic of carbonates, is no longer seen, pointing out the disappearance of impurities (Herbache et al., ; Madejova, ). The band located between 3,200 and 3,750 cm −1 , with a shoulder at 3,622 cm −1 characterizing Montmorillonite, corresponds to the elongation vibrations of the OH groups of the octahedral layer (Madejova, ).…”

Section: Resultsmentioning

confidence: 93%

“…The oxidation experiments were conducted in batch mode using a multistation stirrer device (Memmert IPP200‐500, 9 stations) with thermostatic bath (temperature controlled) with a regulated horizontal oscillation (300 cps/min). In a typical experiment, 15 mg of Mont‐Na (commercial sodium clay of Montmorillonite type (Mont‐Na) is provided by ENOF Company, National Company of the Non‐ferrous Mining Products, Algeria) is suspended in a volume of 250 ml of a solution of O‐cresol (62.5 mg/L) and H 2 O 2 (23.3 mM) (Herbache et al., ). However, different H 2 O 2 concentrations have been studied and an experiment without clay was also analyzed.…”

Section: Methodsmentioning

confidence: 99%

“…The main parameters determined during the catalytic tests are thus pH, the O‐cresol concentrations, intermediates, and in H 2 O 2 . The experimental tests of O‐cresol adsorption over Mont‐Na were carried out in previous work (Herbache et al., ). The conversion of O‐cresol is calculated using the following equation:

% Conversion = \frac{(C_{normali} - C_{normaleq}) 100}{C_{i}}

where C i is the initial concentration of O‐cresol (mg/L), and C eq is its equilibrium concentration, which is determined at the end of the selected contact time (mg/L).…”

Section: Methodsmentioning

confidence: 99%

“…The microporous volumes and the pore width are calculated by applying the methods of Dubinin–Radushkevich (DR) and Barrett, Joyner, and Halenda (BJH) to the N 2 adsorption–desorption isotherms. The point of zero charges pH PZC has been estimated according to previous work (Herbache et al., ).…”

Section: Methodsmentioning

confidence: 99%

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Catalytic degradation of O‐cresol using H₂O₂ onto Algerian Clay‐Na

Herbache

Ramdani

Taleb

et al. 2019

Water Environment Research

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Clay material is used as a catalyst to degrade an organic pollutant. This study focused on the O-cresol oxidative degradation in aqueous solution by adding H 2 O 2 and Mont-Na. The catalytic tests showed a high catalytic activity of Mont-Na, which made it possible to achieve more than 84.6% conversion after 90 min of reaction time at 55°C in 23.2 mM H 2 O 2 . The pH value was found to be negatively correlated with the degradation rate of O-cresol. UV-Vis spectrophotometry revealed that the increase of degradation rate at low pH is related to the formation of 2-methylbenzoquinone as intermediate product. In addition, the content of iron in Mont-Na decreased after the catalytic test, bringing further evidence about the O-cresol catalytic oxidation. The mineralization of O-cresol is also confirmed by the different methods of characterization of Mont-Na after the catalytic oxidation test. The effect of the O-cresol oxidation catalyzed by natural clay is significant.

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Section: Resultsmentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

% Conversion = \frac{(C_{normali} - C_{normaleq}) 100}{C_{i}}

where C i is the initial concentration of O‐cresol (mg/L), and C eq is its equilibrium concentration, which is determined at the end of the selected contact time (mg/L).…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Catalytic degradation of O‐cresol using H₂O₂ onto Algerian Clay‐Na

Herbache

Ramdani

Taleb

et al. 2019

Water Environment Research

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“…Additionally, waste cooking oils can be treated with bentonite for decolouring procedure [9]. Bentonite has also been employed for water treatment, as resulted efficient in adsorbing organic matter and in retaining Fe [10][11][12] or copper [13], or for retain pollutants in industrial wastewaters as the O-cresol [14]. Clays have been largely employed in foundries, cosmetic, enology, and catalysis industries main for its easy availability, and for the possibility to tune its swelling behaviour, adsorption and cation exchange capacity and surface area by modifying the kind of cation and the dimension of the pores [15].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Sardinian Bentonite

et al. 2019

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The employment of clays in industry and on laboratory scale is still of interest, despite their long history. The chemical-physical characteristics of such materials are strongly related to their geographical origin and the availability of proper characterization techniques is of great importance in order to gain as more information about their behavior when utilized as filling materials. In the present contribution, a physical characterization by meaning of Thermogravimetry and N2 physisorption analyses of samples of bentonite collected from the deposit of S´Aliderru in the north of Sardinia (Italy) is reported.

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Heterogeneous Catalytic Degradation of Diuron Using Algerian Sodium Montmorillonite

Tlemsani

Taleb

Piraúlt-Roy

et al. 2021

CLEAN Soil Air Water

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Diuron is categorized as a probable human carcinogen by the United States Environmental Protection Agency (EPA). This work is aimed to determine the optimal conditions for the catalytic degradation of Diuron in an aqueous solution with H2O2 using Algerian sodium Montmorillonite (Mont‐Na) as the catalyst. The material is characterized before and after the experiment using X‐ray diffraction, Fourier transform infrared (FTIR) spectroscopy, specific surface area (SBET), elemental analysis, and thermal analysis (TGA/DTA). The surface charge is determined by measuring the point of zero charge. Tests with H2O2 without Mont‐Na provide a 32% conversion rate after 8 h. However, a mixture of 1 g Mont‐Na and H2O2 increases the conversion rate to 91% after 180 min at 25 °C and pH 6.3. The Diuron disappearance is evidenced by high‐performance liquid chromatography using a UV–vis detector (HPLC/UV–vis). Specifically, 3,4‐dichloroaniline (DCA) is the only by‐product. At the basic pH values 9 and 11, a conversion rate of 72.5% is achieved with a lower contact time of 150 min. A change in temperature toward higher values results in a decrease in the degradation rate. Overall, Algerian sodium Montmorillonite is used successfully for the heterogeneous catalytic degradation of Diuron from polluted water.

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Removal of o-Cresol from aqueous solution using Algerian Na-Clay as adsorbent

Cited by 8 publications

References 32 publications

Catalytic degradation of O‐cresol using H₂O₂ onto Algerian Clay‐Na

Catalytic degradation of O‐cresol using H₂O₂ onto Algerian Clay‐Na

Characterization of Sardinian Bentonite

Heterogeneous Catalytic Degradation of Diuron Using Algerian Sodium Montmorillonite

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Removal of o-Cresol from aqueous solution using Algerian Na-Clay as adsorbent

Cited by 8 publications

References 32 publications

Catalytic degradation of O‐cresol using H2O2 onto Algerian Clay‐Na

Catalytic degradation of O‐cresol using H2O2 onto Algerian Clay‐Na

Characterization of Sardinian Bentonite

Heterogeneous Catalytic Degradation of Diuron Using Algerian Sodium Montmorillonite

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Product

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Catalytic degradation of O‐cresol using H₂O₂ onto Algerian Clay‐Na

Catalytic degradation of O‐cresol using H₂O₂ onto Algerian Clay‐Na