Activated carbon from Ceiba pentandra hulls, an agricultural waste, as an adsorbent in the removal of lead and zinc from aqueous solutions

This study compared the performance of cement kiln dust (CKD) as industrial byproduct and commercially activated carbon (AC) as adsorbent derived from agricultural waste for the removal of cadmium (Cd2+) from aqueous solutions. CKD and AC were characterized by Fourier transform infrared (FTIR) and scanning electron microscopy (SEM) and surface areas demonstrate the differences of physicochemical properties. Batch equilibrium experiments were conducted for various intervals extended to 96 h at 20, 25 and 30°C to investigate the efficiency of the sorbents in the removal of Cd2+. CKD expressed high affinity for removal of Cd2+ and was not affected by temperature, while AC was significantly affected, which reflects dissimilarity in the retention mechanisms defendant in CKD and those pursued by AC. The results were explained by changes of FTIR and SEM images before and after sorption experiments. The suggestion is that electrostatic ion exchange and complex reactions are the main mechanisms for Cd2+ removal. The kinetic data were evaluated by fractional power, Elovich, pseudo-first order and pseudo-second-order kinetic models. The pseudo-second-order kinetic model was found to correlate with the experimental data well. These results revealed that CKD can be used as a cost-effective and efficient sorbent for Cd2+ removal in comparison with AC.

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Rapid Removal of Zinc(II) from Aqueous Solutions Using a Mesoporous Activated Carbon Prepared from Agricultural Waste

Materials ◽

10.3390/ma10091002 ◽

2017 ◽

Vol 10 (9) ◽

pp. 1002 ◽

Cited By ~ 3

Author(s):

Xiaotao Zhang ◽

Yinan Hao ◽

Ximing Wang ◽

Zhangjing Chen

Keyword(s):

Activated Carbon ◽

Aqueous Solutions ◽

Agricultural Waste ◽

Mesoporous Activated Carbon ◽

Rapid Removal

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Removal of Yellow 2G dye from aqueous solutions using activated carbon prepared from mosambi and cotton an agricultural waste

IOSR Journal of Environmental Science Toxicology and Food Technology ◽

10.9790/2402-08164954 ◽

2014 ◽

Vol 8 (1) ◽

pp. 49-54 ◽

Cited By ~ 2

Author(s):

U. V. Ladhe ◽

◽

P. R. Patil

Keyword(s):

Activated Carbon ◽

Aqueous Solutions ◽

Agricultural Waste

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Porous Activated Carbon from Lignocellulosic Agricultural Waste for the Removal of Acetampirid Pesticide from Aqueous Solutions

Molecules ◽

10.3390/molecules25102339 ◽

2020 ◽

Vol 25 (10) ◽

pp. 2339 ◽

Cited By ~ 1

Author(s):

Somaia G. Mohammad ◽

Sahar M. Ahmed ◽

Abd El-Galil E. Amr ◽

Ayman H. Kamel

Keyword(s):

Activated Carbon ◽

Aqueous Solutions ◽

Adsorption Process ◽

Low Cost ◽

Agricultural Waste ◽

Batch Adsorption ◽

Maximum Adsorption Capacity ◽

Equilibration Time ◽

Freundlich Isotherms ◽

Before And After

A facile eco-friendly approach for acetampirid pesticide removal is presented. The method is based on the use of micro- and mesoporous activated carbon (TPAC) as a natural adsorbent. TPAC was synthesized via chemical treatment of tangerine peels with phosphoric acid. The prepared activated carbon was characterized before and after the adsorption process using Fourier- transform infrared (FTIR), X-ray diffraction (XRD), particle size and surface area. The effects of various parameters on the adsorption of acetampirid including adsorbent dose (0.02–0.2 g), pH 2–8, initial adsorbate concentration (10–100 mg/L), contact time (10–300 min) and temperature (25–50 °C) were studied. Batch adsorption features were evaluated using Langmuir and Freundlich isotherms. The adsorption process followed the Langmuir isotherm model with a maximum adsorption capacity of 35.7 mg/g and an equilibration time within 240 min. The adsorption kinetics of acetamiprid was fitted to the pseudo-second-order kinetics model. From the thermodynamics perspective, the adsorption was found to be exothermic and spontaneous in nature. TPAC was successfully regenerated and reused for three consecutive cycles. The results of the presented study show that TPAC may be used as an effective eco-friendly, low cost and highly efficient adsorbent for the removal of acetamiprid pesticides from aqueous solutions.

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Removal of phosphate from aqueous solutions using modified activated carbon prepared from agricultural waste (Populous caspica): optimization, kinetic, isotherm and thermodynamic studies

10.5004/dwt.2018.23000 ◽

2018 ◽

Vol 133 ◽

pp. 177-190 ◽

Cited By ~ 6

Author(s):

Zeinab Gholami ◽

Seid Kamal Ghadiri ◽

Moayed Avazpour ◽

Mohammad Alizadeh Fard ◽

Nader Yousefi ◽

...

Keyword(s):

Activated Carbon ◽

Aqueous Solutions ◽

Agricultural Waste ◽

Modified Activated Carbon ◽

Thermodynamic Studies

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ACTIVATED CARBON FABRICATED FROM VIETNAMESE SUGARCANE BAGASSE FOR REMOVAL OF CIPROFLOXACIN FROM AQUEOUS SOLUTION: PREPARATION, CHARACTERIZATION AND KINETIC STUDIES

Vietnam Journal of Science and Technology ◽

10.15625/2525-2518/59/0/15289 ◽

2020 ◽

Vol 58 (5A) ◽

pp. 170

Author(s):

Bạch Long Giang ◽

Lam Van Tan ◽

To-Uyen T. Dao ◽

Hong-Tham T Nguyen ◽

Trinh Duy Nguyen

Keyword(s):

Aqueous Solution ◽

Activated Carbon ◽

Aqueous Solutions ◽

Sugarcane Bagasse ◽

Ph Value ◽

Agricultural Waste ◽

Analytical Techniques ◽

Kinetic Studies ◽

Kinetic Mechanism ◽

High Porosity

Recent interest in wastewater treatment has shifted to the use of agricultural waste to treat antibiotics in aqueous solutions due the economic efficiency the technique brings. This study focuses on the synthesis, properties and study of the kinetic mechanism of activated carbon and its potential application to remove antibiotics from aqueous solutions. Activated carbon is synthesized from sugarcane bagasse by activated method with active substance of ZnCl2. With a specific surface area of about 980.84 m2/g and high porosity, the product could absorb a large amount of ciprofloxacin (CIP) antibiotics. The properties of materials are characterized by relevant analytical techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Brunauer-Emmett-Teller (BET). The behavior of CIP adsorption was studied under the effect of adsorption dose, initial CIP concentration and pH value. The adsorption and isothermal mechanisms are also studied. The results show that the adsorption adhered to the second kinetic model and the experimental data was found to be reasonably fitted to the Langmuir isotherm. Therefore, activated carbon manufactured from sugarcane bagasse could be used as a potential adsorbent to effectively remove antibiotics from aqueous solution.

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