Highly porous biobased graphene-like carbon adsorbent for dye removal: Preparation, adsorption mechanisms and optimization

Kim, Sehee; Kim, Dong-Su; Moradi, Hiresh; Chang, Yoon-Young; Yang, Jae‐Kyu

doi:10.1016/j.jece.2023.109278

Cited by 43 publications

(10 citation statements)

References 76 publications

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“…Therefore, it is necessary to constantly monitor the concentration of these pollutants in wastewater and to implement effective and cost-effective treatment methods that ensure their removal from the effluent before it rises above critical values ( Jawad and Abdulhameed, 2020 ; Dehmani et al, 2021 ; Loutfi et al, 2023 ). For this aim, the several physical, chemical, and biological methods were developed and used to treat of dye-containing wastewater such as adsorption ( Kim et al, 2023 ), membrane filtration ( Zhao et al, 2021 ), ion exchange ( Joseph et al, 2020 ), photocatalytic degradation ( Fu and Ren, 2020 ), coagulation-flocculation ( Ihaddaden et al, 2022 ), electro-fenton ( Jinisha et al, 2018 ), anodic oxidation ( Mo et al, 2020 ), electrocoagulation ( El-Ashtoukhy and Amin, 2010 ), advanced oxidation ( Dadban Shahamat et al, 2022 ), reverse osmosis ( Nataraj et al, 2009 ), enzyme ( Riegas-Villalobos et al, 2020 ), bacteria ( Srinivasan et al, 2022 ), yeast ( Martorell et al, 2012 ), fungal ( Gul et al, 2023 ), and algae ( Zhang et al, 2022 ) assisted degradation ( Al-Tohamy et al, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Adsorption of textile dyes from aqueous solutions onto clay: Kinetic modelling and equilibrium isotherm analysis

et al. 2023

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The commercial activated carbon commonly uses to reduce of dye amount in the textile industry effluents. In this study has focused on the use of a natural clay sample as low cost but potential adsorbent. For this purpose the adsorption of commercial textile dyes, Astrazon Red FBL and Astrazon Blue FGRL, onto clay was investigated. The physicochemical and topographic characteristics of natural clay sample were determined by scanning electron microscopy (SEM), X-Ray fluorescence spectrometry (XRF), X-Ray diffraction (XRD), thermogravimetric analysis (TGA), and cation exchange capacity measurements. It was determined that the major clay mineral was smectite with partial impurities. The effects of several operational parameters such as contact time, initial dye concentration, temperature, and adsorbent dosage on the adsorption process were evaluated. The adsorption kinetics was interpreted with pseudo-first order, pseudo-second order, and intra-particle diffusion models. The equilibrium adsorption data were analyzed using Langmuir, Freundlich, Redlich-Peterson, and Temkin isotherm models. It was determined that the adsorption equilibrium was reached in the first 60 min for each dye. The amount of adsorbed dyes onto clay decreased with increasing temperature, similarly, it decreased with increasing sorbent dosage. The kinetic data were well described by pseudo-second order kinetic model, and adsorption equilibrium data was followed both Langmuir and Redlich-Peterson models for each dyes. The adsorption enthalpy and entropy values were calculated as −10.7 kJ.mol−1 and −13.21 J.mol−1.K−1 for astrazon red and those for astrazon blue −11.65 kJ.mol−1 and 37.4 J.mol−1.K−1, respectively. The experimental results support that the physical interactions between clay particles and dye molecules have an important role for the spontaneous adsorption of textile dyes onto the clay. This study revealed that clay could effectively be used as an alternative adsorbent with high removal percentages of astrazon red and astrazon blue.

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Section: Introductionmentioning

confidence: 99%

Adsorption of textile dyes from aqueous solutions onto clay: Kinetic modelling and equilibrium isotherm analysis

et al. 2023

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“…In the study of adsorption thermodynamics, the Van’t Hoff equation is used to calculate the above three thermodynamic parameters. During the adsorption process, the change value of Gibbs free energy ( ΔG , kJ/mol) is calculated by the following equation: , normalΔ G = prefix− R T nobreak0em0.25em⁡ ln nobreak0em.25em⁡ k where R is the ideal gas constant (8.314 J/mol·K), T is the adsorption reaction temperature (K), and k (mL/g) is the isothermal adsorption constant at a specific temperature, The intercept of linear fitting of C e by ln K d ( K d = q e / C e ) is ln k . The Van’t Hoff equation is as follows: ln nobreak0em.25em⁡ k = prefix− normalΔ H R T + normalΔ S R By fitting the natural log of the equilibrium constant ln k to the reciprocal of the corresponding temperature 1/ T , we obtained a line with a slope of ΔH / R and an intercept of ΔS / R .…”

Section: Results and Discussionmentioning

confidence: 99%

Three-Dimensional Porous Carbon Material Derived from Moldy Rice Noodles for Highly Efficient Removal of Methylene Blue Dye

Wang,

Liu,

Yuan

et al. 2024

ACS Sustainable Resour. Manage.

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Methylene blue (MB) is a water-soluble organic compound with a complex chemical structure and stable properties, which is difficult to remove. In this work, a high specific surface area MB dye adsorbent of 3D hierarchical porous derived carbon was obtained from moldy rice noodles (RN) through high-temperature carbonization and strong alkali etching. The morphology and structural properties, pore structure, specific surface area, and crystallinity of RN carbon (RNC) are analyzed. The adsorption properties of RNC for MB dye molecules are studied, including the influence of different activator (KOH) ratios, the influence of initial concentration of dye, and the influence of adsorption kinetics and thermodynamics on the adsorption of dye. The results show that the optimal ratio of RN to activator is 1:2 (RNC-2), and its specific surface area is the highest, reaching 1693.31 m 2 /g. At 298 K, the maximum theoretical adsorption capacity of RNC-2 is 626.25 mg/g, and at 333 K, the maximum theoretical adsorption capacity is 827.34 mg/g. This work shows that the derived carbon material obtained from moldy RN is a kind of adsorbent material with excellent properties and has a great application prospect in purifying industrial wastewater. This work also means that moldy RN can be recycled rather than discarded. In addition, this material can also be used in fields such as energy storage and catalysis in the future.

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“…The mass percentage of CaCl 2 in PCC-42 was up to 49.8 wt % according to the ICP–OES results, more than other PCC-based sorbents (see Table S4). Besides, the cation–π interaction between Ca and the carbon framework also effectively prevents salt leakage. , Benefiting from the HCl vapor treatment process, the CaCl 2 formed in situ serves as the main adsorption site for full contact with water molecules, eventually enhancing the overall adsorption capacity. CaCl 2 @C composite was also fabricated by immersing CaCl 2 into porous carbon for contrast, and the mass percentage of CaCl 2 is about 71 wt %.…”

Section: Resultsmentioning

confidence: 99%

Ca-MOF-Derived Porous Sorbents for High-Yield Solar-Driven Atmosphere Water Harvesting

Hu,

Wang,

Fang

et al. 2023

ACS Appl. Mater. Interfaces

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The development of high-yield, metal–organic framework (MOF)-based water harvesters in arid areas remains challenging due to the absence of effective strategies for enhancing water sorption capacity and kinetics. Herein, we presented a novel strategy for in situ fabrication of calcium chloride (CaCl2) decorated MOF-derived porous sorbents (PCC-42) through pyrolysis Ca-MOF and subsequently hydrochloric acid (HCl) vapor treatment process. The resulting PCC-42 sorbents exhibited a high water adsorption capacity of 3.04 g g–1 at 100% relative humidity (RH), outstanding photothermal performance, and rapid water uptake-release kinetics, surpassing most reported MOFs adsorbents. At 20, 30, 40, and 50% RH, PCC-42 demonstrated water uptake capacity of 0.45, 0.59, 0.76, and 0.9 g g–1, which represented an increase of 421 and 940% (at 20% RH) and 333 and 351% (at 30% RH) compared to Ca-MOF and CaCl2·2H2O, respectively. Approximately 80% of the adsorbed water in PCC-42 could be released under one sun within 50 min. Indoor water harvesting experiments demonstrated that PCC-42 is a promising adsorbent for various humidity environments. Additionally, outdoor solar-driven atmospheric water harvesting (AWH) tests revealed a high daily water production of 1.13 L/kgadsorbent under typical arid conditions (30–60% RH). The proposed strategy helps the design of high-performance adsorbents for solar-driven AWH in arid environments.

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Highly porous biobased graphene-like carbon adsorbent for dye removal: Preparation, adsorption mechanisms and optimization

Cited by 43 publications

References 76 publications

Adsorption of textile dyes from aqueous solutions onto clay: Kinetic modelling and equilibrium isotherm analysis

Adsorption of textile dyes from aqueous solutions onto clay: Kinetic modelling and equilibrium isotherm analysis

Three-Dimensional Porous Carbon Material Derived from Moldy Rice Noodles for Highly Efficient Removal of Methylene Blue Dye

Ca-MOF-Derived Porous Sorbents for High-Yield Solar-Driven Atmosphere Water Harvesting

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