Biosorption of Basic Red 46 using raw cactus fruit peels: equilibrium, kinetic and thermodynamic studies

Akkari, Imane; Graba, Zahra; Bezzi, Nacer; Merzeg, Farid Ait; Baït, N.; Ferhati, A.; Kaci, Mohamed Mehdi

doi:10.1007/s13399-022-02354-y

Cited by 21 publications

(4 citation statements)

References 62 publications

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“…pH PZC represents the pH value for which the surface charge of a photocatalyst is zero. The zero charge point (pH PZC ) was determined using the equilibrium technique 33 . 0.1 g of the photocatalysts was added to 25 mL of NaNO 3 solution (0.1 M) at different pH (pH between 2 and 12) by adjusting the pH with HCl or NaOH.…”

Section: Resultsmentioning

confidence: 99%

“…The zero charge point (pH PZC ) was determined using the equilibrium technique. 33 0.1 g of the photocatalysts was added to 25 mL of NaNO 3 solution (0.1 M) at different pH (pH between 2 and 12) by adjusting the pH with HCl or NaOH. The various mixtures obtained were left under continuous stirring at 350 Tour/min for 24 h. After filtration, the pH of the solutions obtained was measured (pH f ), 34 Figure 5 shown the curves of different samples.…”

Section: Electrical Conductivitymentioning

confidence: 99%

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A comparative analysis of photocatalytic applications using poly[(vanillin‐co‐pyrrole)]/ZnO and TiO₂‐based semiconductor under natural sunlight irradiation

Lahouel

Mekidiche

Slimane

et al. 2023

J of Applied Polymer Sci

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This study presents an experimental investigation with a comparative analysis on the photocatalytic activity of two composites, namely poly(vanillin‐co‐pyrrole)/ZnO and poly(vanillin‐co‐pyrrole)/TiO2, for the degradation of methylene blue (MB) dye under simulated solar irradiation. Conductive polymers, specifically poly(vanillin‐co‐pyrrole) (PPHMB) and its derivatives, were employed as photosensitizers to enhance the photocatalytic activity of ZnO and TiO2 under solar irradiation. PPHMB was synthesized using the cationic polycondensation method, while the PPHMB/ZnO and PPHMB/TiO2 composites were prepared through the co‐precipitation method. The prepared composites exhibited superior photocatalytic activity compared to bare ZnO and TiO2 under solar irradiation for the degradation of MB dye. Extensive characterization techniques, including Fourier‐transform infrared, x‐ray diffraction, thermogravimetric analysis, and optical analysis, were employed to investigate the properties of the composites. Various influential operational parameters such as initial dye concentration, irradiation time, and the dosage of PPHMB/ZnO and PPHMB/TiO2 composites were systematically studied to evaluate their effects on photocatalytic degradation. The optical density of dye degradation was quantified using a UV–Visible spectrophotometer, while the repeatability of the photocatalytic activity was rigorously assessed.

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Section: Resultsmentioning

confidence: 99%

Section: Electrical Conductivitymentioning

confidence: 99%

A comparative analysis of photocatalytic applications using poly[(vanillin‐co‐pyrrole)]/ZnO and TiO₂‐based semiconductor under natural sunlight irradiation

Lahouel

Mekidiche

Slimane

et al. 2023

J of Applied Polymer Sci

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show abstract

“…Due to the characteristics of nontoxic, biodegradable, and extensive resources, agricultural by-product is considered as a promising alternative for developing efficient adsorbents [ 12 , 13 ]. Recently, various agricultural by-products have been evaluated as raw materials to develop dye adsorbent, such as garlic peels [ 14 ], banana peels [ 15 ], potato peels [ 16 ], orange peels [ 17 ], cactus fruit peels [ 18 ], sugarcane bagasse [ 19 ], Artocarpus odoratissimus leaves [ 20 ], Gigantochloa bamboo [ 21 ], and so on. Kiwi ( Actinidia deliciosa ) is a popular and widely cultivated fruit, which is rich in vitamin, mineral, and dietary fiber.…”

Section: Introductionmentioning

confidence: 99%

Efficient and Selective Adsorption of Cationic Dye Malachite Green by Kiwi-Peel-Based Biosorbents

Zhao

Liu

et al. 2023

Molecules

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In this study, pristine kiwi peel (KP) and nitric acid modified kiwi peel (NA-KP) based adsorbents were prepared and evaluated for selective removal of cationic dye. The morphology and chemical structure of KP and NA-KP were fully characterized and compared, and results showed nitric acid modification introduced more functional groups. Moreover, the adsorption kinetics and isotherms of malachite green (MG) by KP and NA-KP were investigated and discussed. The results showed that the adsorption process of MG onto KP followed a pseudo-second-order kinetic model and the Langmuir isotherm model, while the adsorption process of MG onto NA-KP followed a pseudo-first-order kinetic model and the Freundlich isotherm model. Notably, the Langmuir maximum adsorption capacity of NA-KP was 580.61 mg g−1, which was superior to that of KP (297.15 mg g−1). Furthermore, thermodynamic studies demonstrated the feasible, spontaneous, and endothermic nature of the adsorption process of MG by NA-KP. Importantly, NA-KP showed superior selectivity to KP towards cationic dye MG against anionic dye methyl orange (MO). When the molar ratio of MG/MO was 1:1, the separation factor (αMG/MO) of NA-KP was 698.10, which was 5.93 times of KP. In addition, hydrogen bonding, π-π interactions, and electrostatic interaction played important roles during the MG adsorption process by NA-KP. This work provided a low-cost, eco-friendly, and efficient option for the selective removal of cationic dye from dyeing wastewater.

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“…How ever, activated carbon is still the most used adsorbent despite its high price [11]. Lots of adsorbents based on biomass have recently been used to eliminate organic pollutants from waste water [12], including olive pomace.…”

Section: Introductionmentioning

confidence: 99%

Phenol adsorption onto olive pomace activated carbon: modelling and optimization

Merzeg¹,

Baït²,

Mokrani³

et al. 2023

Nauk. visn. nat. hirn. univ.

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Purpose. To depollute water contaminated by phenol using the adsorption process in a batch reactor with valorization of olive pomace for the preparation of activated carbon to be used as an adsorbent. Methodology. In this present work, study on the influence of four principal parameters on the adsorption yield during the treatment of polluted water by the process of adsorption were studied, namely: the activated carbon mass, the contact time, the phenol initial concentration and the stirring speed. In addition, the process was optimized with full factorial designs using the response surface methodology by the MINITAB software. Findings. The phenol removal by adsorption on the activated carbon made from olive pomace makes it possible to achieve an adsorption efficiency of 91 % with the use of following optimal conditions: adsorbent mass of 0.48 g, a contact time of 110.80 min, a phenol concentration of 100.98 mg/L, and a stirring speed of 462.89 rpm. Contact time and adsorbent mass showed a positive effect on phenol removal efficiency. The principal effect results illustrate that all four examined factors significantly affected the phenol removal by olive pomace activated carbon with a confidence level of 95 %. Originality. The experimental data of the phenol adsorption on the olive pomace activated carbon were examined by adjustment of a second-degree polynomial model. This model is validated by a statistical method using an analysis of variance (ANOVA). Numerical optimization was performed by the desirability function to identify the optimal parameters for maximum phenol recovery. Practical value. In order to highlight a process for treating waters contaminated with phenol, we have chosen the processes that are considered to be best suited, which is adsorption with the recovery of a waste such as an adsorbent, which is prepared by physical and chemical activation of olive pomace. The full factorial design applied makes it possible to show the influence of each parameter independently and their dependencies, as well as to find the optimal experimental conditions quickly which lead to the realization of this process.

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Biosorption of Basic Red 46 using raw cactus fruit peels: equilibrium, kinetic and thermodynamic studies

Cited by 21 publications

References 62 publications

A comparative analysis of photocatalytic applications using poly[(vanillin‐co‐pyrrole)]/ZnO and TiO₂‐based semiconductor under natural sunlight irradiation

A comparative analysis of photocatalytic applications using poly[(vanillin‐co‐pyrrole)]/ZnO and TiO₂‐based semiconductor under natural sunlight irradiation

Efficient and Selective Adsorption of Cationic Dye Malachite Green by Kiwi-Peel-Based Biosorbents

Phenol adsorption onto olive pomace activated carbon: modelling and optimization

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Biosorption of Basic Red 46 using raw cactus fruit peels: equilibrium, kinetic and thermodynamic studies

Cited by 21 publications

References 62 publications

A comparative analysis of photocatalytic applications using poly[(vanillin‐co‐pyrrole)]/ZnO and TiO2‐based semiconductor under natural sunlight irradiation

A comparative analysis of photocatalytic applications using poly[(vanillin‐co‐pyrrole)]/ZnO and TiO2‐based semiconductor under natural sunlight irradiation

Efficient and Selective Adsorption of Cationic Dye Malachite Green by Kiwi-Peel-Based Biosorbents

Phenol adsorption onto olive pomace activated carbon: modelling and optimization

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Product

Resources

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A comparative analysis of photocatalytic applications using poly[(vanillin‐co‐pyrrole)]/ZnO and TiO₂‐based semiconductor under natural sunlight irradiation

A comparative analysis of photocatalytic applications using poly[(vanillin‐co‐pyrrole)]/ZnO and TiO₂‐based semiconductor under natural sunlight irradiation