Competitive adsorption of anionic and cationic molecules on three activated carbons derived from agroindustrial waste

Martı́nez, Rodrigo; Vela-Carrillo, Alina Z.; Godı́nez, Luis A.; Bueno, José de Jesús Pérez; Robles, Irma

doi:10.1016/j.biombioe.2022.106660

Cited by 16 publications

(3 citation statements)

References 43 publications

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“…Agribusiness and agricultural residues are alternatives for supplementing ruminant animals in critical periods when the availability of dry food decreases due to the lower availability of forage [121]. Residues such as corn straw, bean pods, husks, and straw from cereals such as rice, carnauba straw, and wheat straw have reduced nutritional value, despite their high availability [122]. These by-products still have a high lignin content, reduced soluble carbohydrate content, and a percentage of crude protein below the necessary [123].…”

Section: Agroindustrial Wastementioning

confidence: 99%

Research Progress and Trends on Utilization of Lignocellulosic Residues as Supports for Enzyme Immobilization via Advanced Bibliometric Analysis

et al. 2023

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Lignocellulosic biomasses are used in several applications, such as energy production, materials, and biofuels. These applications result in increased consumption and waste generation of these materials. However, alternative uses are being developed to solve the problem of waste generated in the industry. Thus, research is carried out to ensure the use of these biomasses as enzymatic support. These surveys can be accompanied using the advanced bibliometric analysis tool that can help determine the biomasses used and other perspectives on the subject. With this, the present work aims to carry out an advanced bibliometric analysis approaching the main studies related to the use of lignocellulosic biomass as an enzymatic support. This study will be carried out by highlighting the main countries/regions that carry out productions, research areas that involve the theme, and future trends in these areas. It was observed that there is a cooperation between China, USA, and India, where China holds 28.07% of publications in this area, being the country with the greatest impact in the area. Finally, it is possible to define that the use of these new supports is a trend in the field of biotechnology.

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Section: Agroindustrial Wastementioning

confidence: 99%

Research Progress and Trends on Utilization of Lignocellulosic Residues as Supports for Enzyme Immobilization via Advanced Bibliometric Analysis

et al. 2023

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“…0.4 gram of each PWM and PWC was placed separately in 30 mL solutions of 0.1 M HCl, 0.1 M sodium hydroxide, 0.1 M sodium carbonate, and 0.1 M sodium hydrogen carbonate, respectively, and each sample was sealed with aluminum foil and placed at 30 °C for 10 hours and then filtered. For filtrates containing excess unconsumed washing soda, baking soda, or caustic soda, 10 mL of each filtrate was titrated against a standard solution of 0.1 M HCl to determine the number of carboxylic, phenolic, and lactone groups, and 0.1 M NaOH to assess the number of basic groups such as -NH 2 groups on each PWM and PWC [33,34].…”

Section: Preparation and Characterizations Of Adsorbentsmentioning

confidence: 99%

Eco-Friendly Detoxification of Congo Red Dye from Water by Citric Acid Activated Bioadsorbents Consisting of Watermelon and Water Chestnuts Peels Collected from Indigenous Resources

Hussain

Rehman

Imran

et al. 2022

Adsorption Science & Technology

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The native peels of two cheap, locally available adsorbents, watermelon (PWM) and water chestnuts (PWC), were chemically processed with different chemicals as modifying agents for the determination and assessment of their adsorption ability for the removal and clearance of harmful, venomous, and pernicious Congo red (CGR), as an acidic nature anionic dye, from the aqueous system. In successive batch experiments, the citric acid-treated peels CPWM and CPWC have shown more promising adsorption performance than their raw and untreated peel counterparts due to the availability of additional adsorption active binding sites evidenced through FT-IR and SEM characterizations. In the Langmuir and Temkin models, the correlation coefficients ( R 2 ) for the adsorptive removal of CGR on CPWM, PWM, CPWC, and PWC are very close to unity, 0.99 for each case of adsorption performance. Furthermore, the q max nonlinear statistical results for the elimination of CGR on citric acid-treated adsorbents (CPWM and CPWC) are 8.3 and 7.95 mg/g whereas for their unmodified forms (PWM and PWC) are 2.23 and 4.32 mg/g, respectively, reflecting homogenous and monolayer adsorption mechanism. The greater values of B T 1.4 and 1.3 J/mole, for adsorptive removal of dye on CPWM and CPWC, respectively, as compared to their unmodified forms PWM and PWC which are 0.53 and 0.55 J/mole, respectively, indicate the stronger adsorbate-adsorbent associations. The mechanism follows the pseudo second order in the better mode, while thermodynamic statics for ΔH0,ΔG0, ΔS0, and ΔE0, indicate spontaneous and exothermic behavior of adsorption. This study tends to suggest that citric acid-modified adsorbents CPWM and CPWC may indeed be exploited efficiently to eliminate Congo red dye from wastewater.

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“…Desde hace varias décadas el semiconductor más empleado para procesos de fotocatálisis es el dióxido de titanio (TiO2), el cual exhibe una alta eficiencia en la degradación de contaminantes. Sin embargo, debido a que posee una banda prohibida de 3.2 eV únicamente aprovecha el rango ultravioleta (UV) de la radiación, esto limita su funcionamiento bajo una fuente de luz inagotable y que no representa costo alguno como lo es la radiación solar, ya que dentro del espectro total que llega a la tierra, únicamente el 6% es radiación UV (Martínez et al, 2023;Singh et al, 2023). Por otra parte, la recuperación del TiO2 en un sistema acuoso resulta sumamente complejo, por lo que su reutilización tiene altos costos haciendo inviable esta alternativa (Kong et al, 2018).…”

Section: Introductionunclassified

Síntesis de un fotocatalizador recuperable magnéticamente a base de manganita de lantano-estroncio

Taboada Moreno,

Betancourt,

Rosales González

et al. 2023

aactm

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La contaminación del agua por colorantes es un grave problema por sus efectos nocivos en la salud y el medio ambiente, ante esta problemática se han desarrollado numerosos métodos para su remediación, siendo la fotocatálisis de los más eficientes. En este trabajo se analizó la eficiencia fotocatalítica de la manganita de lantano (La0.7Sr0.3MnO3) sintetizada mediante molienda de alta energía asistida con tratamiento para la remoción de cristal violeta (CV), como contaminante, en medio acuoso. Los resultados obtenidos por difracción de rayos X confirmaron la formación de una fase pura de manganita con estructura cristalina romboédrica (R-3c). La eficiencia fotocatalítica se evaluó bajo un espectro de luz visible utilizando como referencia el CV, revelando una alta eficiencia en la degradación cercana al 80 % en un tiempo de 150 minutos con una cinética de degradación de 0.0238min-1 El comportamiento magnético del La0.7Sr0.3MnO3, determinado mediante magnetometría de muestra vibrante, revelaron un orden ferromagnético con una magnetización de saturación de 67 emu g-1, haciendo a este material un fotocatalizador recuperable magnéticamente.

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Competitive adsorption of anionic and cationic molecules on three activated carbons derived from agroindustrial waste

Cited by 16 publications

References 43 publications

Research Progress and Trends on Utilization of Lignocellulosic Residues as Supports for Enzyme Immobilization via Advanced Bibliometric Analysis

Research Progress and Trends on Utilization of Lignocellulosic Residues as Supports for Enzyme Immobilization via Advanced Bibliometric Analysis

Eco-Friendly Detoxification of Congo Red Dye from Water by Citric Acid Activated Bioadsorbents Consisting of Watermelon and Water Chestnuts Peels Collected from Indigenous Resources

Síntesis de un fotocatalizador recuperable magnéticamente a base de manganita de lantano-estroncio

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