Effective adsorption of harmful herbicide diuron onto novel activated carbon from Hovenia dulcis

Georgin, Jordana; Franco, Dison Stracke Pfingsten; Netto, Matias Schadeck; Gama, Brígida Maria Villar da; Fernandes, Daniel Pinto; Sepúlveda, Pamela; Silva, Luis; Meili, Lucas

doi:10.1016/j.colsurfa.2022.129900

Cited by 29 publications

(9 citation statements)

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“…The resulting carbonaceous skeleton, composed mainly of carbon, exhibited a yield of approximately 27%, consistent with previous studies using a 1:1 proportion of ZnCl 2 . The four biomasses examined in this investigation were Jabuticaba residues [ 34 ], açai residues [ 35 ], Hovenia dulcis fruits [ 27 ], and cassava peels [ 36 ]. The authors reported a yield of about 64 % when KOH was used as the activating agent [ 37 ].…”

Section: Resultsmentioning

confidence: 99%

“…Adsorption has the advantage of being able to use new adsorbents produced from plant leftovers [ 25 , 26 ]. Plant leftovers, such as those produced by agricultural activities or plant-based industries, can be used to produce activated carbon at a cheap cost and in a sustainable manner [ 27 ]. These carbonaceous materials, which are mostly made of carbon, often have an excellent pore formation and a high surface area, which are essential characteristics of an effective adsorbent [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

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The Synthesis and Evaluation of Porous Carbon Material from Corozo Fruit (Bactris guineensis) for Efficient Propranolol Hydrochloride Adsorption

Franco,

Georgin,

Ramos

et al. 2023

Molecules

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This study explores the potential of the corozo fruit (Bactris guineensis) palm tree in the Colombian Caribbean as a source for porous carbon material. Its specific surface area, pore volume, and average pore size were obtained using N2 adsorption/desorption isotherms. The images of the precursor and adsorbent surface were obtained using scanning electron microscopy (SEM). Fourier transform infrared (FTIR) spectra were obtained to detect the main functional groups present and an X-ray diffraction analysis (XRD) was performed in order to analyze the structural organization of the materials. By carbonizing the fruit stone with zinc chloride, a porous carbon material was achieved with a substantial specific surface area (1125 m2 g⁻1) and pore volume (3.241 × 10−1 cm3 g⁻1). The material was tested for its adsorption capabilities of the drug propranolol. The optimal adsorption occurred under basic conditions and at a dosage of 0.7 g L⁻1. The Langmuir homogeneous surface model effectively described the equilibrium data and, as the temperature increased, the adsorption capacity improved, reaching a maximum of 134.7 mg g⁻1 at 328.15 K. The model constant was favorable to the temperature increase, increasing from 1.556 × 10−1 to 2.299 × 10−1 L mg−1. Thermodynamically, the adsorption of propranolol was found to be spontaneous and benefited from higher temperatures, indicating an endothermic nature (12.39 kJ mol⁻1). The negative ΔG0 values decreased from −26.28 to −29.99 kJ mol−1, with the more negative value occurring at 328 K. The adsorbent material exhibited rapid kinetics, with equilibrium times ranging from 30 to 120 min, depending on the initial concentration. The kinetics data were well-represented by the general order and linear driving force models. The rate constant of the general order model diminished from 1.124 × 10−3 to 9.458 × 10−14 with an increasing concentration. In summary, the leftover stone from the Bactris guineensis plant can be utilized to develop activated carbon, particularly when activated using zinc chloride. This material shows promise for efficiently adsorbing propranolol and potentially other emerging pollutants.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Synthesis and Evaluation of Porous Carbon Material from Corozo Fruit (Bactris guineensis) for Efficient Propranolol Hydrochloride Adsorption

Franco,

Georgin,

Ramos

et al. 2023

Molecules

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“…Também foi possível identificar a participação dos grupamentos C=O e C=C na adsorção do diuron sendo esse último responsável por interações π-π (ZBAIR et al 2020a). Georgin et al (2022) também identificaram esses mesmos grupos funcionais como os responsáveis pela adsorção do diuron em carvão ativado derivado de Hovenia dulcis.…”

Section: Discussionunclassified

Síntese De Hidrocarvão a Partir Da Casca Do Fruto De Bocaiuva E Sua Aplicação Na Remoção De Diuron De Água Contaminada

Magalhães

Barbosa²,

Golin³

et al. 2022

NAT

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Neste estudo, hidrocarvão foi sintetizado a partir da casca do fruto da bocaiuva e aplicado na remoção de diuron de água contaminada por meio do processo de adsorção. A influência do pH inicial da solução, concentração do hidrocarvão, tempo de contato e temperatura no processo de adsorção foram avaliados. O modelo cinético de pseudossegunda ordem e o modelo de isoterma de Langmuir forneceram os melhores ajustes aos dados de adsorção. A capacidade máxima de adsorção foi estimada em 10,06 mg g-1, em pH 4,0 e 30 °C. A energia de ativação calculada pelo modelo de isoterma de Dubinin-Radushkevich foi de 7,805 kJ mol-1, indicando que um processo físico é responsável pela adsorção do diuron no hidrocarvão. Os parâmetros termodinâmicos (ΔH < 0 e ΔG > 0) sugeriram que o processo de adsorção é exotérmico e não espontâneo. Os resultados indicaram que o hidrocarvão derivado da casca do fruto da bocaiuva pode ser um adsorvente alternativo para a remoção de diuron de água. Palavras-chave: adsorção; cinética; modelos de isotermas; estudo termodinâmico. Hydrochar synthesis using bocaiuva fruit peel and its application in diuron removal from contaminated water ABSTRACT: In this study, hydrochar was synthesized using bocaiuva fruit peel for application in diuron removal from contaminated water through adsorption. The influence of the initial pH of the solution, hydrochar concentration, contact time, and temperature on the adsorption process were evaluated. The pseudo-second order kinetic model and the Langmuir isotherm model provided the best fits to the adsorption data. The maximum adsorption capacity was estimated at 10.06 mg g-1, at pH 4.0 and 30 °C. The activation energy calculated by the Dubinin-Radushkevich isotherm model was 7.805 kJ mol-1, indicating that a physical process is responsible for the adsorption of diuron on hydrochar. The thermodynamic parameters (ΔH < 0 and ΔG > 0) suggested that the adsorption process is exothermic and not spontaneous. The results indicated that hydrochar could be an alternative adsorbent for removing diuron from water. Keywords: adsorption; kinetic; isotherms models; thermodynamic studies.

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“…Therefore, both materials presented empty spaces irregularly distributed over the surface, corroborating with the results of the surface areas, favouring the accommodation of dye molecules. [65]…”

Section: Morphological and Textural Characteristics Of Materialsmentioning

confidence: 99%

“…[91] This information corroborates the information obtained by fitting the Freundlich isotherm with parameters n close to 1. Regarding the values of ΔS (standard entropy change) (20.824 and 7.480 kJ mol À1 Á K À1 ), the positive value shows that the disturbance of the system in the solid-liquid interface increases during adsorption [92] and suggests the possibility of some structural changes or readjustments in the adsorbate-adsorbent complex, [91] with greater intensity for the LDH/CaAl-AP material. Thus, it can be stated that according to the calculated thermodynamic parameters ΔG , ΔH , and ΔS , the adsorption of MB on the adsorbent was a process of spontaneous and favourable adsorption, exothermic in nature and governed by forces of a physical nature.…”

Section: Thermodynamic Studiesmentioning

confidence: 99%

Transformation of Mytella falcata residual shell into CaAl/LDH adsorbent: Removal of methyl orange and methylene blue dyes

Henrique

Duarte

et al. 2023

Can J Chem Eng

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This study analyzed the viability of using malacoculture residue (Mytella falcata) to produce layered double hydroxides (LDHs) and for its subsequent use as an adsorbent. The CaAl/LDH‐RE material was produced with calcium oxide from the residue and the CaAl/LDH‐AP was produced with a commercial reagent. Both were used to remove methyl orange (MO) and methylene blue (MB) dyes. The CaAl/LDH‐RE presented a surface area of 28.54 m2 g−1, being 65.62% larger than the CaAl/LDH‐AP material (17.23 m2 g−1). The adsorbents showed mesopores distributed on a surface formed by plates in the form of hexagonal sheets arranged in an overlapping manner. The dosage of 0.05 g L−1 obtained the removal of 95% and 97% for MO, while for MB it was 94% and 93% using the adsorbents LDH/CaAl‐AP and LDH/CaAl‐RE, respectively. The system reached equilibrium at 90 min for MO and 120 min for MB. The pseudo‐second order model well represented the kinetic data reaching 11.36 mg g−1 (CaAl/LDH‐RE) and 8.42 mg g−1 (CaAl/LDH‐AP) for MO, and 4.47 mg g−1 (CaAl/LDH‐RE) and 4.14 mg g−1 (CaAl/LDH‐AP) for MB. The Freundlich model better represented the isothermal data, where the temperature exerted little influence. Adsorbents showed similar removal percentages in real and synthetic matrices. The LDH/CaAl‐RE can be applied in up to 3 cycles, maintaining its adsorption capacity. These results corroborate the use of MFW to produce CaAl/LDH‐RE, which can be used for the efficient removal of organic pollutants in an aqueous solution.

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Effective adsorption of harmful herbicide diuron onto novel activated carbon from Hovenia dulcis

Cited by 29 publications

References 64 publications

The Synthesis and Evaluation of Porous Carbon Material from Corozo Fruit (Bactris guineensis) for Efficient Propranolol Hydrochloride Adsorption

The Synthesis and Evaluation of Porous Carbon Material from Corozo Fruit (Bactris guineensis) for Efficient Propranolol Hydrochloride Adsorption

Síntese De Hidrocarvão a Partir Da Casca Do Fruto De Bocaiuva E Sua Aplicação Na Remoção De Diuron De Água Contaminada

Transformation of Mytella falcata residual shell into CaAl/LDH adsorbent: Removal of methyl orange and methylene blue dyes

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