Deep insights into kinetics, optimization and thermodynamic estimates of methylene blue adsorption from aqueous solution onto coffee husk (Coffee arabica) activated carbon

Deivasigamani, Prabu; Senthil Kumar, P.; Sundaraman, Sathish; Soosai, Michael Rahul; Renita, A. Annam; M, Karthikeyan; Bektenov, Nessipkhan; Baigenzhenov, Omirserik; D, Venkatesan; Kumar J, Aravind

doi:10.1016/j.envres.2023.116735

Cited by 21 publications

(4 citation statements)

References 51 publications

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Section: Isotherm Study Of Adsorptionmentioning

confidence: 99%

“…These parameters are derived from the slopes and intercepts of the plots. To determine the most appropriate isotherm for the experimental data, the isotherm exhibiting the highest correlation coefficient (R 2 ) was selected, indicating its strong correlation with the data [60]. The results obtained indicated that the Langmuir model was followed by the adsorption of MB due to the strong coefficient correlation (R 2 ).…”

Section: Isotherm Study Of Adsorptionmentioning

confidence: 99%

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A Novel Nanogold Composite Fabrication, Its Characterization, and Its Application in the Removal of Methylene Blue Dye from an Aqueous Solution

Abood,

Essa,

Alsuraifi

et al. 2024

Applied Sciences

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A unique aspect of this research lies in the combination of polyethylene terephthalate (PET) nanofibers with Auo@PPh2-PIILP to create a nanogold composite (NGC). This NGC has proven to be highly efficient in removing methylene blue (MB) from wastewater. The prepared nanogold composite NGC was characterized by Fourier-transform infrared spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FE-SEM), transmission electron microscopy (TEM), Energy Dispersive X-ray Spectroscopy (EDAX), and Elements Distribution Mapping (EDM). Several factors were examined in batch adsorption experiments to determine their impact on dye adsorption. These factors included the initial pH range of four to eight, the dosage of NGC adsorbent ranging from 0.001 to 0.008 g, the initial concentration of MB dye ranging from 10 to 50 mg L−1, and the contact period ranging from 10 to 80 min. It has been observed that NGC is more efficient in removing MB from polluted water. The results of the pseudo-second-order model show good agreement between the calculated adsorption capacity (qe)cal. (4.3840 mg g−1) and the experimental adsorption capacity (qe)exp. (4.6838 mg g−1) values. Experimental findings suggest a monolayer capping of MB dye on the NGC surface with a maximum adsorption capacity Qm of 18.622 mg g−1 at 20 °C, indicating that it is well-fitted to the Langmuir isotherm.

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Section: Isotherm Study Of Adsorptionmentioning

confidence: 99%

Section: Isotherm Study Of Adsorptionmentioning

confidence: 99%

A Novel Nanogold Composite Fabrication, Its Characterization, and Its Application in the Removal of Methylene Blue Dye from an Aqueous Solution

Abood,

Essa,

Alsuraifi

et al. 2024

Applied Sciences

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“…A potentially cost-effective replacement adsorbent for the successful removal of Cr(VI) from wastewater is amide-functionalized biochar (Ali et al 2023). In recent years, many researchers have explored the potential of utilizing activated carbon derived from unconventional and renewable sources to address both environmental and economic concerns (Deivasigamani et al 2023;Sari et al 2023;Tolkou et al 2022;Anjum et al 2023;Yu et al 2023). One such unconventional source is liming pelt trimming solid waste which is generated in the leather industry.…”

Section: Introductionmentioning

confidence: 99%

Removal of Toxic Hexavalent Chromium from Wastewater by Activated Carbon Generated from Liming Pelt Trimming with Tannin

Hossain,

Mottalib,

Paul

et al. 2024

Preprint

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In the leather industry, 8–12% of chromium compound is used in tanning and around 60–70% of the applied chromium is consumed by the leather fibre and the rest of them are discharged to the effluent. This chromium has an adverse impact on the environment as well as on humans. Chromium (III) can be oxidized into chromium (VI) in many ways which are considered carcinogenic as well as mutagenic. Activated carbon generated from liming pelt trimming which is left over as a tannery solid waste with vegetable tannin (mimosa) was employed to investigate chromium (VI) adsorption from aqueous solutions. Activated carbon was prepared in a muffle furnace at 600oC in the presence of sulfuric acid. Batch tests were performed to determine how several factors, such as pH, contact time, adsorbent dosage, initial chromium content, and temperature affected the adsorption process. The excellent maximum chromium (VI) removal efficiency was found 99.15% from aqueous solutions at pH 1 and an adsorbent dosage of 15 g/L. According to the kinetic investigation, the chromium (VI) removal by the activated carbon followed a pseudo-second-order kinetic with an R2 of 0.9889. Thermodynamic parameters including ΔGo, ΔHo, and ΔSo revealed that the adsorption of chromium ions on the activated carbon was exothermic and spontaneous. The results prove that chromium (VI) could be removed from industrial wastewater using a very promising, cost-efficient biosorbent made from tannery solid waste. The novelty of the current approach is to utilize the tannery solid waste as an adsorbent to reduce the dangerous chemicals from the wastewater where pollutants will be eliminated by the treatment of waste.

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“…Deriving carbon from biomass is one of the waste-to-wealth techniques. Because of their rich availability and sustainability, these biomass-derived materials have become a research hotspot widely used in different applications, like catalysts, electrodes, and absorbents. − Tatrari et al synthesized reduced graphene oxide for supercapacitor applications using the coconut husk biomass source. The electrochemical performance was carried out in 1 M H 2 SO 4 and poly(vinyl alcohol)–KI–H 2 SO 4 polymer gel electrolytes, with the specific capacitance of 500 F g –1 at 1 mV s –1 and specific energy of 36.11 Wh kg –1 .…”

Section: Introductionmentioning

confidence: 99%

Effects of Potassium-Based Activating Agents on the Biochar Derived from Coconut Tree Husk for Enhancing the Surface Area and Supercapacitor Performance

Ajin,

Chandra Bose

2024

Energy Fuels

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The growing demands for environmental and energy sustainability drive the development of energy storage devices with high energy and power densities and, consequently, potential electrode materials. The conversion of biomass waste into sustainable electrode materials has attracted much attention in the scientific community for energy storage applications. In this work, porous carbon is derived from the agricultural biowaste of the coconut tree (Cocos nucifera) husk. This biowaste is activated through a chemical activation method using different activating agents, such as K2CO3, KOH, KMnO4, KCl, KBr, and KI. Among the samples, biomass-derived carbon activated using the KMnO4 activating agent (AC3) delivers a high specific surface area of 2333.4 m2 g–1 with a pore volume of 2.625 cm3 g–1, which results in excellent electrochemical performance, with a gravimetric capacitance of 560 F g–1 at 2 A g–1 current density in 2 M KOH electrolyte solution. To demonstrate the real-time application, symmetric aqueous (KOH) and gel [poly(vinyl alcohol)-PVA/KOH] electrolyte devices are fabricated using the AC3@graphite sheet as positive and negative electrodes. The fabricated symmetric gel electrolyte device achieves a high gravimetric capacitance of 276 F g–1 at the current density of 2 A g–1. The above device manifests an energy density of 38.3 Wh kg–1 at a power density of 1 kW kg–1. Besides, the cycle stability retains 98% even after 5000 cycles at 10 A g–1 current density. These superior electrochemical outcomes suggest that this AC3@graphite sheet electrode will have potential in electric double-layer supercapacitors.

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Deep insights into kinetics, optimization and thermodynamic estimates of methylene blue adsorption from aqueous solution onto coffee husk (Coffee arabica) activated carbon

Cited by 21 publications

References 51 publications

A Novel Nanogold Composite Fabrication, Its Characterization, and Its Application in the Removal of Methylene Blue Dye from an Aqueous Solution

A Novel Nanogold Composite Fabrication, Its Characterization, and Its Application in the Removal of Methylene Blue Dye from an Aqueous Solution

Removal of Toxic Hexavalent Chromium from Wastewater by Activated Carbon Generated from Liming Pelt Trimming with Tannin

Effects of Potassium-Based Activating Agents on the Biochar Derived from Coconut Tree Husk for Enhancing the Surface Area and Supercapacitor Performance

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