Efficacy of physically pretreated Mangifera indica biomass for Cu2+ and Zn2+ sequestration

Nadeem, Raziya; Naqvi, Maida Ali; Nasir, Mubashir Hussain; Saeed, Rashid; Iqbal, Tahira; Ashraf, Muhammad; Ansari, Tariq Mahmood

doi:10.1016/j.jscs.2011.12.013

Cited by 8 publications

(2 citation statements)

References 21 publications

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“…The decline in adsorption ability by SSAC caused the active layer to be closed, characterized by clumps on the adsorbent, which reduced the effective adsorption area. This also results in overlap in the adsorption layer, which reduces the total surface area of the adsorbent [45]. The higher the mass of the adsorbent capacity of adsorption will decrease.…”

Section: Resultsmentioning

confidence: 99%

High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon

Ni’am

Fenelon

Ningsih

et al. 2022

Adsorption Science & Technology

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Heavy metal wastewater pollution has become an environmental and industrial challenge worldwide. Hexavalent chromium (Cr(VI)) is one of the most common forms of chromium metal. Hexavalent chromium pollution is a concern because it was hazardous and can accumulate in the tissues of living organisms and the environment. The adsorption method using activated carbon can be one of the methods to treat hexavalent chromium waste. This study selected Samanea saman as the activated carbon because it contains hemicellulose, lignocellulose, and lignin, which are the requirements for an excellent activated carbon. The study’s objective is to analyze Samanea saman activated carbon (SSAC) to remove hexavalent chromium, measure the adsorption capacity, and determine the appropriate type of adsorption isotherm layer based on the maximum R 2 and minimum χ 2 values. The process of making activated carbon was activated using K2CO3 through a pyrolysis process and using batch adsorption. The SEM results as characterization of SSAC depicted that the high pore was well developed. The optimal conditions for Samanea saman indicated high efficiency toward hexavalent chromium ions within the following process parameters; pH value 5, adsorbent dosage 5 g, and initial concentration 20 mg/L. The findings demonstrate that SSAC leads to the removal efficiency of hexavalent chromium being 99.90%, with the greatest adsorption capacity of 0.8949 mg/g. Based on the maximum R 2 and minimum χ 2 values, the most suitable adsorption isotherm model in SSAC was the Freundlich isotherm existing in the monolayer ( R 2 = 0.999 ). The experimental results demonstrated that adsorption of Cr(VI) was well performed by SSAC. Thus, the SSAC material is an appropriate adsorbent for the removal of hexavalent chromium in the water and has the potential to be industrial applied.

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Section: Resultsmentioning

confidence: 99%

High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon

Ni’am

Fenelon

Ningsih

et al. 2022

Adsorption Science & Technology

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“…An excessive quantity of adsorbent mass results in the overlapping of certain active areas within the adsorbent. This overlapping effect hinders the effective dispersion and maximal adsorption of metal ions by a particular active area of the adsorbent [13, 38]. Adding higher mass to the adsorbent can cause aggregations that reduce the area of the active site of the adsorbent, resulting in a decrease in adsorption capacity [13, 39].…”

Section: Resultsmentioning

confidence: 99%

Characterization and Potential of Samanea saman-Activated Carbon on Adsorption of Copper from an Aqueous Solution

Ni'am,

Suhar,

Fenelon

2023

Adsorption Science & Technology

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The mining and electroplating industries have resulted in the contamination of the environment with heavy metal. This has resulted in a serious threat to the ecological environment and human health due to the presence of copper pollution. To address this issue, extensive efforts have been made to develop effective methods for removing contaminants, particularly heavy metal, and Samanea saman (SS) was selected as precursor production of activated carbon. Therefore, this study is aimed at investigating Samanea saman-activated carbon (SSAC) to remove copper from an aqueous solution. SS was chemically activated by potassium carbonate and carbonized at 600°C for 5 hours, while SSAC was characterized by scanning electron microscopy-energy dispersive X-ray (SEM-EDS), Fourier-transform infrared (FTIR), and proximate tests. Copper adsorption on SSAC was evaluated by the Langmuir, Freundlich, Langmuir, Freundlich, Redlich-Peterson, Harkin-Jura, and Jovanovic models. Pseudo-first-order, pseudo-second-order, Elovich, and intraparticle diffusion models were used to identify adsorption process mechanism. SEM-EDS results presented that the pore of SSAC was heterogeneous, irregular in shape, and mesopore. In addition, FTIR analysis identified the main functional groups present in SSAC as C-H, C-O-C, and C-O. The proximate test conducted on SSAC determined the water content, volatile matter, ash content, and fixed carbon to be 0.61%, 22.26%, 9.77%, and 67.97%, respectively. The results showed that SSAC exhibited exceptional performance with copper removal efficiency of 99.49% under an adsorbent mass of 0.25 g, a reaction time of 30 minutes, and a concentration of 10 mg/L. Isotherm adsorption of SSAC followed the Redlich-Peterson model with an adsorption capacity (Qm) of 0.663 mg/g, correlation value ( R 2 ) of 0.9992, and pseudo-second-order pattern R 2 = 0.9997 . Therefore, SSAC can be proposed as a potential and economical biomaterial to treat heavy metal in wastewater.

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Effects of different mechanical treatments on structural changes of lignocellulosic waste biomass and subsequent Cu(II) removal kinetics

Lopičić

Stojanović

Marković

et al. 2019

Arabian Journal of Chemistry

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Efficacy of physically pretreated Mangifera indica biomass for Cu2+ and Zn2+ sequestration

Cited by 8 publications

References 21 publications

High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon

High-Efficiency Adsorption of Hexavalent Chromium from Aqueous Solution by Samanea saman Activated Carbon

Characterization and Potential of Samanea saman-Activated Carbon on Adsorption of Copper from an Aqueous Solution

Effects of different mechanical treatments on structural changes of lignocellulosic waste biomass and subsequent Cu(II) removal kinetics

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