Preparation, characterization, and application of activated carbon from low-cost material for the adsorption of tetracycline antibiotic from aqueous solutions

Takdastan, Afshin; Mahvi, Amir Hossein; Lima, Éder C.; Shirmardi, Mohammad; Babaei, Ali Akbar; Goudarzi, Gholamreza; Neisi, Abdolkazem; Farsani, Mohammad Heidari; Vosoughi, Mehdi

doi:10.2166/wst.2016.402

Cited by 74 publications

(21 citation statements)

References 54 publications

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“…These sites were occupied by the ions, therefore the efficiency began to decrease gradually, and after a while no changes were seen in the adsorption efficiencies of lead and arsenic ions. Worthy to note, with increasing the contact time, due to gradual occupancy of these sites and repulsive forces between the ions and bulk solution, the occupation of the remaining vacant sites becomes more difficult …”

Section: Resultsmentioning

confidence: 99%

Adsorption of Lead and Arsenic Ions from Aqueous Solution by Activated Carbon Prepared from Tamarix Leaves

Koohzad¹,

Jafari

Esmaeili

2019

ChemistrySelect

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Lead and arsenic are regarded as the significant heavy metal ions which have a great contribution in the pollution of industrial wastewaters. In this research, the adsorption of Pb (II) and As (III) ions from the aqueous solution was studied using activated carbon prepared from Tamarix leaves as a new adsorbent. The adsorbent was characterized by Brunauer, Emmett, and Teller (BET), X‐ray fluorescence spectrometer (XRF), scanning electron microscope (SEM), energy dispersive X‐ray and mapping (EDX/Map), X‐ray diffraction (XRD), and Raman techniques. Batch experiments were designed to investigate the significance of adsorption parameters including pH, adsorbent dosage, time, temperature, and initial concentration on Pb and As ions removal efficiencies. The experiments indicated that the highest adsorption efficiencies were 97.86% for lead and 96.18% for arsenic ions in pH values of 6 for Pb and 7 for As, adsorbent dosage of 3 g/L and initial concentration of 10 mg/L for both of them, and contact time of 60 min and 40 min for Pb and As ions, respectively. Additionally, the results of adsorption kinetics showed that the pseudo second‐order model was more effective for the description of adsorption mechanism of both metals compared to the pseudo first‐order model. The equilibrium behavior of arsenic and lead ions were described well by Langmuir and Freundlich models, respectively. In addition, thermodynamic studies showed that the current adsorption processes were exothermic and spontaneous. Based on the results, the prepared adsorbent can be considered as a good adsorbent for the removal of Pb and As ions from aqueous solutions.

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Section: Resultsmentioning

confidence: 99%

Adsorption of Lead and Arsenic Ions from Aqueous Solution by Activated Carbon Prepared from Tamarix Leaves

Koohzad¹,

Jafari

Esmaeili

2019

ChemistrySelect

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“…Preparation and Formula of the Activated Carbon While activated carbon can be made in various ways, zinc chloride and phosphoric acid are commonly used as catalysts to make activated carbon at lower temperatures, producing waste chemicals in the process (Chen et al 2013;Takdastan et al 2016). The carbon requires activation after carbonization, and potassium hydroxide is generally used as the activating agent (Mendoza-Carrasco et al 2016).…”

Section: Resultsmentioning

confidence: 99%

“…This in turn makes it difficult to achieve a standard product based on a general process (Dubey et al 2009). Additionally, the use of zinc chloride and phosphoric acid in the current process for making activated carbon can cause further pollution (Chen et al 2013;Takdastan et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Preparation of Activated Carbon from Herbal Residues and Kinetics of Cephalosporin Antibiotic Adsorption in Wastewater

Li¹,

Yang

2017

BioResources

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In order to utilize the leftover materials from traditional Chinese medicine production and to remove antibiotics from wastewater, extracted herbal residues were used as raw materials to produce activated carbon. To keep a constant quality and adsorption ability across cephalosporin antibiotic samples, all samples were divided into rhizomes, fruits, and leaves to make activated carbon by step-wise carbonization and overheated steam activation. The three kinds of carbon were mixed in the optimal ratio of 5:4:2, which had homogeneity in quality with a high adsorption capacity. Maximum adsorption of the mixture to cefalexin and cefradine were 7.1 mg/g, and the mixture removed 84% of the antibiotics from treated wastewater. Approximately 90% of the antibiotics was desorbed after ultrasonic treatment of the distilled water-carbon mixture for 10 min, and a re-adsorption capacity of 80% was maintained for next use. The adsorption process is dominated by a pseudo-second order kinetic reaction, with two active sites binding to one antibiotic molecule. The rate-limiting step is an intra-particle diffusion process. The isothermal adsorption process conforms to Langmuir and Tempkin isotherm models, showing multilayer and physical adsorption. The activated carbon from herbal residues can adsorb a low concentration of antibiotics in wastewater and be recycled after ultrasonic treatment.

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“…After equilibrium, the removal efficiency and the adsorption capacity (q e , mg/g) were calculated using Eqs. (1) and (2), respectively [23][24][25]:…”

Section: Adsorption Experimentsmentioning

confidence: 99%

Adsorption of Basic Violet 16 dye from aqueous solution onto mucilaginous seeds of Salvia sclarea: kinetics and isotherms studies

Afshin¹,

Rashtbari²,

Shirmardi³

et al. 2019

DWT

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a b s t r a c tThe Salvia sclarea seeds (SSS) were used as adsorbent for the removal of Basic Violet 16 (BV 16) dye from aqueous solutions. The structure and surface characteristics of the SSS were investigated by field emission scanning electron microscopy, Fourier transform infrared spectroscopy, Brunauer-Emmett-Teller and pH point of zero charge (pH pzc ) procedures. The effect of SSS dosage, pH of the solution, contact time and initial concentration of BV 16 dye on its removal was elucidated. The experimental data were analyzed by the Langmuir, Freundlich and Temkin isotherm models. The adsorption isotherm data were fitted well to Langmuir isotherm and the monolayer adsorption capacity was found to be 19.80 mg/g. The kinetic data obtained at different concentrations have been analyzed using a pseudo-first-order, pseudo-second-order equation. The kinetic studies showed that the pseudo-second-order kinetic model better described the adsorption of BV 16 dye onto the SSS. The findings reveal the feasibility of the SSS to be used as a potential and low-cost adsorbent in water and waste water industry for the removal of various pollutants, more specifically cationic dyes.

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Preparation, characterization, and application of activated carbon from low-cost material for the adsorption of tetracycline antibiotic from aqueous solutions

Cited by 74 publications

References 54 publications

Adsorption of Lead and Arsenic Ions from Aqueous Solution by Activated Carbon Prepared from Tamarix Leaves

Adsorption of Lead and Arsenic Ions from Aqueous Solution by Activated Carbon Prepared from Tamarix Leaves

Preparation of Activated Carbon from Herbal Residues and Kinetics of Cephalosporin Antibiotic Adsorption in Wastewater

Adsorption of Basic Violet 16 dye from aqueous solution onto mucilaginous seeds of Salvia sclarea: kinetics and isotherms studies

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