Performance Analysis of Different Activated Carbons for the Effective Removal of HMF from Syrup Glucose

Yassue-Cordeiro, Patrícia Hissae; Gimenes, Marcelino Luiz; Pereira, Valéria Cataneli; Lima, Liliane Schier de; Quináia, Sueli Pércio; Nascimento, Patricia M. K. de B. do

doi:10.21577/1984-6835.20190063

Cited by 2 publications

References 15 publications

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Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar

Nascimento,

Oliveira,

Junior

et al. 2024

Sci Rep

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This study aimed to assess the value of Pachira aquatica Aubl. fruit peels by exploring their applicability in the biosorption process for the removal of Ni(II) and Cd(II) metal ions. The Pachira aquatica Aubl. fruit peel biochar (PAB) was extensively characterized through various techniques, including proximate analysis, helium pycnometer, XRD, SEM, point of zero charge determination, zeta potential measurement, and Boehm titration. Subsequently, kinetic, isotherm, and thermodynamic batch biosorption studies were conducted, followed by column biosorption tests. The characteristics of PAB, including low moisture content, a neutral point of zero charge, porosity, an irregular and heterogeneous structure, a negatively charged surface, and the presence of functional groups, indicate its remarkable capacity for efficiently binding with heavy metals. Biosorption equilibrium time was achieved at 300 min for both ions, fitting well with a pseudo second-order kinetic model and Langmuir isotherm model. These data suggest that the biosorption process occurred chemically in monolayer. The column C presented an exhaust volume of 1200 mL for Ni(II) and 1080 for Cd(II) and removal of 98% and 99% of removal for Ni(II) and Cd(II), respectively. In summary, PAB demonstrates substantial potential as a biosorbent for effectively removing heavy metals, making a valuable contribution to the valorization of this co-product and the mitigation of environmental pollution.

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Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar

Nascimento,

Oliveira,

Junior

et al. 2024

Sci Rep

View full text Add to dashboard Cite

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Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel Biochar

Nascimento,

Oliveira,

Junior

et al. 2023

Preprint

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Chemical contamination of the environment by heavy metals is becoming a serious problem in the worldwide due to increased human activities and industrial development. Therefore, researchers have been looking for alternatives to remediate these contaminants with economical and efficient technologies. This work aimed to value Pachira aquatica Aubl. fruit peels through the applicability of this material in the biosorption process for removal of Ni(II) and Cd(II) metal ions. Characterization of Pachira aquatica Aubl. fruit peel biochar (PAB) was performed through the proximate analysis, helium pycnometry, XRD, SEM, point of zero charges, zeta potential, and Boehm titration method. Design of experiment (DOE) was carried out, as well as kinetic, isotherm, and thermodynamic batch biosorption, and finally, column biosorption tests were performed. The PAB presents potential as a biosorbent due to its low amount of moisture, density similar to that of commercial activated carbons, neutral point of zero charges, porous, irregular, heterogeneous, and negative surface within the presence of functional groups capable of efficiently connecting with heavy metal. The biosorption equilibrium time was obtained at 300 min for both ions, following a pseudo second-order kinetic model and Langmuir isotherm model. The column tests presented an exhaust volume of 40.2 mg/L and 29.2 mg/L for Ni(II) and Cd(II), respectively. Thus, it is concluded that the PAB has the potential as a biosorbent for the removal of heavy, it leads to the valorization of this co-product and the reduction of environmental pollution.

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Performance Analysis of Different Activated Carbons for the Effective Removal of HMF from Syrup Glucose

Cited by 2 publications

References 15 publications

Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar

Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel biochar

Biosorption of nickel and cadmium using Pachira aquatica Aubl. peel Biochar

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