Activated Carbon Microsphere from Sodium Lignosulfonate for Cr(VI) Adsorption Evaluation in Wastewater Treatment

Yang, Kang; Xing, Jingchen; Xu, Pingping; Chang, Jianmin; Zhang, Qingfa; Usman, Khan Muhammad

doi:10.3390/polym12010236

Cited by 23 publications

(12 citation statements)

References 44 publications

(71 reference statements)

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“…In general, adsorption study is modeled with isotherms described by mathematical equations. Isotherm studies are useful to detect the concentrations ratio of AB 113 between solid and liquid phases and to provide important information about those, when equilibrium is reached [35]. Thus, the adsorption process of AB 113 onto IRA 402(Cl − ) resin, applying the Langmuir and Freundlich isotherm model, was evaluated.…”

Section: Batch Adsorption Studiesmentioning

confidence: 99%

Application of Amberlite IRA 402 Resin Adsorption and Laccase Treatment for Acid Blue 113 Removal from Aqueous Media

Marin

Stănculescu

2021

Polymers

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Despite Acid Blue 113 (AB 113)’s extensive use and negative environmental impact, very few studies have focused on its efficient and environmentally friendly removal. This research aims the removal of AB 113 from environmental aqueous media and its consequent enzymatic biodegradation. A strongly basic anion exchange resin in Cl− form, Amberlite IRA 402 (IRA 402(Cl−)) was used for AB 113 adsorption and a laccase was used to further biodegrade it. For the first time, two novel, efficient and environmentally friendly physical–chemical and biological assays for AB 113 wastewater removal and subsequent biodegradation were combined. The adsorption of AB 113 onto IRA 402(Cl−) was tested in batch and continuous flux modes. Influence of contact time, concentration and desorption in acidic media were evaluated. The kinetic data were best modulated by the Lagergren model with R2 = 0.9275. The Langmuir isotherm model best fitted the experimental data, and the maximum adsorption capacity was 130 mg/g. Dye, resin and AB113 loaded resin were characterized by thermogravimetry and FTIR to evaluate their physical chemical properties modification. Based on the performed studies, a consecutive methodology is proposed, incorporating the ion exchange process in the first stage and the biodegradation process in the second. Thus, in the second stage the residual concentration of AB 113 is reduced by an efficient bio-degradation process produced by the laccase at pH = 4.

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Section: Batch Adsorption Studiesmentioning

confidence: 99%

Application of Amberlite IRA 402 Resin Adsorption and Laccase Treatment for Acid Blue 113 Removal from Aqueous Media

Marin

Stănculescu

2021

Polymers

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“…The effect of pH solution is an important parameter that influences the adsorption capacity of the adsorbent for metal ions [ 28 , 29 ]. Figure 5 shows the effect of pH on the adsorption of resin for La 3+ , Ce 3+ , and Y 3+ .…”

Section: Resultsmentioning

confidence: 99%

Preparation of a Novel Polystyrene-Poly(hydroxamic Acid) Copolymer and Its Adsorption Properties for Rare Earth Metal Ions

Cao

Wang

et al. 2020

Polymers

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In this study, a novel polystyrene-poly(hydroxamic acid) copolymer was synthesized as an effective adsorbent for the treatment of rare earth elements. Through the use of elemental analysis as well as FTIR, SEM, XPS, and Brunauer-Emmett-Teller (BET) surface area measurement, the synthesized polymer was found to have a specific surface area of 111.4 m2·g−1. The adsorption performances of rare metal ions were investigated under different pH levels, contact times, initial concentrations of rare earth ions, and temperatures. The adsorption equilibrium for La3+, Ce3+, and Y3+ onto a polystyrene-poly(hydroxamic acid) copolymer is described by the Langmuir model, which confirms the applicability of monolayer coverage of rare earth ions onto a polystyrene-poly(hydroxamic acid) copolymer. The amount of adsorption capacities for La3+, Ce3+, and Y3+ reached 1.27, 1.53, and 1.83 mmol·g−1 within four hours, respectively. The adsorption process was controlled by liquid film diffusion, particle diffusion, and chemical reaction simultaneously. The thermodynamic parameters, including the change of Gibbs free energy (∆G), the change of enthalpy (∆H), and the change of entropy (∆S), were determined. The results indicate that the adsorption of resins for La3+, Ce3+ and Y3+ was spontaneous and endothermic. The polymer was also used as a recyclable adsorbent by the desorption experiment.

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“…Recently, ACSs were also prepared by ZnCl 2 activation of a precursor prepared by the Mannich reaction between lignocellulose and polystyrene [190]. The prepared ACSs were applied successfully in the separation of Cr(VI) ions from wastewater, having a surface area and average pore size of 769.37 m 2 g -1 and 2.46 nm, respectively.…”

Section: Activated Carbon Spheresmentioning

confidence: 99%

Carbon Nanomaterials for Wastewater Treatment

et al. 2021

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The research progress made in recent years in removal of organic-inorganic pollutants from wastewater using various types of carbon materials as adsorbents such as carbon nanotubes, carbon nanofibers, graphenes, graphitic carbon nitride, fullerene, activated carbon spheres, and carbon quantum dots is reviewed. These carbon nanomaterials with hierarchical structures are efficient and economical adsorbents. The techniques of metal impregnation and doping help to control the porosity and surface area of nanomaterials. Electrostatic forces, p-p and p-e interactions, van der Waals weak forces, and oxygen-containing groups are considered responsible for the removal of pollutants from wastewater. The carbon nanomaterial-based photocatalysts are applied successfully in decomposition of persistent dyes under visible light. Fe 3 O 4 magnetic material is employed as recyclable adsorbent after treatment of wastewater. Freundlich and Langmuir models are found more suitable to calculate the adsorption efficiency and adsorption kinetics of pollutants. Criteria and properties of carbon nanomaterials are discussed that might play a significant role in remediation of wastewater.

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Activated Carbon Microsphere from Sodium Lignosulfonate for Cr(VI) Adsorption Evaluation in Wastewater Treatment

Cited by 23 publications

References 44 publications

Application of Amberlite IRA 402 Resin Adsorption and Laccase Treatment for Acid Blue 113 Removal from Aqueous Media

Application of Amberlite IRA 402 Resin Adsorption and Laccase Treatment for Acid Blue 113 Removal from Aqueous Media

Preparation of a Novel Polystyrene-Poly(hydroxamic Acid) Copolymer and Its Adsorption Properties for Rare Earth Metal Ions

Carbon Nanomaterials for Wastewater Treatment

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