Adsorption Kinetics of Cupric Ions on Mixture of Modified Corn Stalk and Modified Tomato Waste

Vafakhah, Sareh; Bahrololoom, M.E.; Saeedikhani, Mohsen

doi:10.4236/jwarp.2016.813095

Cited by 21 publications

(3 citation statements)

References 32 publications

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“…In contrast, pseudo-second-order assumes that intra-particle diffusion controls the adsorption rate. Lagergren first proposed this kinetic study model to describe the adsorption of pollutant liquid on the surface solid and differentiate it from the kinetic system based on concentration (Vafakhah et al, 2016). The experimental results of the kinetic parameters are given in Table 4 and Figure 8.…”

Section: Kinetics and Thermodynamics Model Of Cft Adsorptionmentioning

confidence: 99%

Palm Kernel Meal Activated Carbon via Glass Wool-Pyrolysis Method for Ceftriaxone Adsorption

FAHMI

2023

JOPR

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Antibiotic residues are a primary environmental concern because they are difficult to remove, including in wastewater treatment plants. A one-pot glass wool-pyrolysis method was developed and utilised to convert palm kernel meal into activated carbon from palm kernel meal (AC-PKM) over process temperatures 750°C for 5 hr as an adsorbent for antibiotic residues. Physicochemical properties, semi-quantitative specific surface area, surface functional group profiles, and scanning electron microscopy (SEM) were evaluated.The physicochemical properties of AC-PKM meet the standards set by SNI 06-3730-1995 with a semiquantitative specific surface area of 751 m 2 /g. Fourier transform infrared (FTIR) analysis shows that the active functional groups are scattered on the surface of AC-PKM. The maximum adsorption capacity is 82.64 mg/g adsorbent and can be explained by the Langmuir isotherm and pseudo-second-order type I kinetic model. The thermodynamic investigation showed that the adsorption process is a spontaneous endothermic reaction. The AC-PKM can remove 26% ceftriaxone (as a model residue antibiotic) for 2 hr of contact at a neutral pH at room temperature. The results show great promise of the one-pot glass wool-pyrolysis method to produce desirable activated carbon for removing ceftriaxone (CFT) application and an alternative treatment for the reuse of palm kernel meal waste.

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Section: Kinetics and Thermodynamics Model Of Cft Adsorptionmentioning

confidence: 99%

Palm Kernel Meal Activated Carbon via Glass Wool-Pyrolysis Method for Ceftriaxone Adsorption

FAHMI

2023

JOPR

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“…Where Qe and Qt (mg/g) are the quantity of TBBPA adsorbed at the equilibrium at time t (min) and k1 the adsorption constant for pseudo-second order equation [21].…”

Section: ➢ Kinetics Modelsmentioning

confidence: 99%

Exploring of the sorption mechanism of endocrine disruptors on a newly developed cost-effective microporous material derived from puck (Afroxtyrax lepidophyllus) shell

Kouahou,

Djioko,

Atemkeng

et al. 2023

Preprint

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Tetrabromobisphenol A (TBBPA), due to its recognized dangerous effects such as interfering in the hormonal system, requires special attention for scientists. This work opens with the aim of depolluting TBBPA in the environment by adsorption in batch mode using activated carbon prepared from puck shell. Absorbent prepared from the puck shells (CRP) bio-based material have been characterized by advanced techniques such as iodine number, EDX mapping, FT-IR, FE-SEM, XRD, N2 adsorption/desorption. Analysis show a high carbon rate in the activated carbons obtained with a surface essentially made up of acid functions. In addition, the Activated carbon derived from puck shell (CRP) exhibited an amorphous phase consisting of mesopores and micropores. The specific surface area obtained from the BET was 502 m²/g. Optimum conditions of TBBPA adsorption obtained from response surface methodology using Box-Behnken model were 200 mg for activated carbon, 15mg/L for TBBPA concentration at pH 7.6, a stirring time of 89 minutes, with a retention percentage of 87.9%. The mechanism explained from the adsorption isotherms and kinetics showed a multilayer and favorable adsorption involving π-π interactions, possibility of ion exchange, Van der Waals and hydrogen bonds. Computational modeling was carried out through functional density theory and Monte Carlo molecular modeling to elucidate the underlying mechanism. These confirmed the experimental results indicating a strong affinity between CRP and TBBPA in a slightly basic medium with adsorption energy of -135.25 Kcal/mol. The results of desorption process using sodium hydroxide, water and ethanol as desorbing agents obtained show that the CRP are indeed reusable.

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“…Agricultural discard, especially corn stalk (corn is a major crop in Heilongjiang province, providing grain reserves, feed, and industrial raw materials) is an important part of agricultural straw in Heilongjiang province. Another abundant straw waste, rice, was chemically modified and studied as a biosorbent by Vafakhah et al [13]. A mixture of corn stalk and tomato waste was oxidized with nitric acid, used to investigate the adsorption of copper(II) ions.…”

Section: Introductionmentioning

confidence: 99%

Fermented Corn Stalk for Biosorption of Copper(II) from Aqueous Solution

Ren

Shahzad

Zhang

et al. 2018

Advances in Materials Science and Engineering

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Corn stalk is the amplest and inexpensive organic material in Heilongjiang province, China. This resource is vicious, causing pollution of the environment. In this present study, an adsorbent is prepared by corn stalk fermentation with Aspergillus niger. The fermentative effects of water content ratio, initial pH medium, temperature, and time were addressed. The analysis of factors and orthogonal experiments revealed that the optimum conditions of producing cellulose were solid-liquid ratio of 1 : 5, temperature 28°C, initial pH, and 72 hours. The modification mechanism was investigated by using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The biosorption capacity of fermented corn stalk was better than that of raw corn stalk under identical conditions, and this improvement can be ascribed to the enzyme system secretion by A. niger under changing the surface properties of the raw corn stalk. Some of the hydroxyl and carboxyl groups are bounded by cellulose which became free hydroxyl and carboxyl groups with a high ability after adsorption of heavy metals.

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Adsorption Kinetics of Cupric Ions on Mixture of Modified Corn Stalk and Modified Tomato Waste

Cited by 21 publications

References 32 publications

Palm Kernel Meal Activated Carbon via Glass Wool-Pyrolysis Method for Ceftriaxone Adsorption

Palm Kernel Meal Activated Carbon via Glass Wool-Pyrolysis Method for Ceftriaxone Adsorption

Exploring of the sorption mechanism of endocrine disruptors on a newly developed cost-effective microporous material derived from puck (Afroxtyrax lepidophyllus) shell

Fermented Corn Stalk for Biosorption of Copper(II) from Aqueous Solution

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