Synthesis and adsorption behavior of activated carbon impregnated with ASZM-TEDA for purification of contaminated air

Kiani, Sidra Shaoor; Faiz, Yasir; Farooq, Amjad; Ahmad, Masroor; Irfan, Naseem; Nawaz, Mohsan; Bibi, Saira

doi:10.1016/j.diamond.2020.107916

Cited by 20 publications

(6 citation statements)

References 44 publications

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“…The narrow hysteresis curve corresponds to the moderate presence of micropores in the material structure and a more important number of mesopores [71]. For all samples, metal impregnation promoted the increasing or maintenance of the pore radius, except for the case of copper impregnation, where we noticed an increase in the pore radius caused by the support structure disruption during impregnation [73,74]. A decrease in the AC-specific surface area and pore volume is expected due to metals impregnation in the micropores and deposition in the mesopores, causing channel blockage that decreases the pore volume.…”

Section: Betmentioning

confidence: 73%

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Performance of supported metal catalysts in the dimethyl carbonate production by direct synthesis using CO2 and methanol

Faria

Santos

Bernard

et al. 2021

Journal of CO2 Utilization

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Section: Betmentioning

confidence: 73%

“…The literature describes AC as a support with a relatively high surface area. Pore presence in AC is responsible for this morphological and structural characteristic facilitating CO 2 diffusion through the structure, benefiting its use when applied in catalysis [64,67,68].…”

Section: Sem-fegmentioning

confidence: 99%

Performance of supported metal catalysts in the dimethyl carbonate production by direct synthesis using CO2 and methanol

Faria

Santos

Bernard

et al. 2021

Journal of CO2 Utilization

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“…2c, this lead to filling cavities and clogging the cracks. The dispersion of metal oxide particles on the surface of (OSMG) carbon is evident in the SEM picture as white dots 58 .…”

Section: Resultsmentioning

confidence: 99%

Synthesis of activated carbon composited with Egyptian black sand for enhanced adsorption performance toward methylene blue dye

ElKholy

Yahia²,

El-Nawawy

et al. 2023

Sci Rep

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The present study reports the feasibility of the synthesis of a novel porous composite adsorbent, prepared from olive stone activated carbon (OS400) and garnet (GA) mineral impregnations (referred to as OSMG). This composite (OSMG) was applied for its ability to adsorb a macromolecular organic dye. The composite’s structural characteristics were evaluated using various techniques such as Brunauer–Emmett–Teller (BET), Scanning Electron Microscopy equipped with Energy Dispersive X-ray spectroscopy (SEM–EDX), X-ray diffraction (XRD), and a Fourier transform infrared spectrometer (FT-IR). The specific surface area of the garnet (GA), (OS400), and (OSMG) were found to be 5.157 mg⋅g−1, 1489.598 mg⋅g−1, and 546.392 mg⋅g−1, respectively. The specific surface area of the new composite (OSMG) was promoted to enhance the adsorption of methylene blue (MB). Experiments were conducted under various conditions, including contact time, initial dye concentration, adsorbent dosage, pH, and temperatures. Data from these experiments were analyzed using several adsorption models including Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich (D-R). The results indicated that, the adsorption fit best with the Freundlich model and that the adsorption process followed a pseudo-second-order kinetic mechanism. Additionally, the thermodynamic analysis indicated the adsorption of MB onto garnet(GA) adsorbents is endothermic, while the sorption onto (OS400) and (OSMG) is an exothermic and non-spontaneous process. The OSMG composite can be used for at least five cycles without significant loss of adsorptive performance, and can easily be separated from the water after treatment.

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“…2c, this lead to fill cavities and clog the cracks. The dispersion of metal oxide particles on the surface of (OSMG) carbon is evident in the SEM picture as white dots [56].…”

Section: Figures (2amentioning

confidence: 99%

Synthesis of Activated Carbon Composited With Egyptian Black Sand for Enhanced Adsorption Performance toward Methylene Blue Dye

ElKholy

Yahia²,

El-Nawawy

et al. 2022

Preprint

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The present study reports the feasibility of the synthesis of a novel porous activated carbon (OS400) composite adsorbent prepared from olive stone and impregnated with garnet (GA) types of black sand minerals. The Activated Carbon/ garnet composite (OSMG) was applied for the sorption of macromolecular organic dye. The structural characteristics of the synthesized composite were evaluated by Brunauer–Emmett–Teller (BET), N2 adsorption/desorption measurements, Scanning Electron Microscopy equipped with Energy Dispersive X-ray spectroscopy (SEM-EDX), X-ray diffraction (XRD), and a Fourier transform infrared spectrometer (FT-IR). The specific surface area of (GA), (OS400), and (OSMG) were 5.157 m2.g− 1, 1489.598 m2.g− 1, and 546.392 m2.g− 1, respectively. The high specific surface area and effective active centers of the new composite promoted the adsorption of methylene blue (MB). The experiments were carried out under various conditions such as contact time, initial concentration of adsorbate, adsorbent dosage, pH, and temperatures. The equilibrium adsorption data were evaluated using the Langmuir and Freundlich isotherm models. The results display that, the adsorption isotherm had an excellent fitting to the Freundlich model. Furthermore, the data obtained from adsorption kinetic models showed that the pseudo-second-order model more agreeing for describing the (MB) adsorption reaction, suggesting a chemisorption mechanism. The values of thermodynamic parameters indicate that methylene blue dye adsorption onto the (GA) adsorbents through an endothermic reaction, while exothermic sorption of MB onto (OS400) and (OSMG), with a non-spontaneous process.

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Synthesis and adsorption behavior of activated carbon impregnated with ASZM-TEDA for purification of contaminated air

Cited by 20 publications

References 44 publications

Performance of supported metal catalysts in the dimethyl carbonate production by direct synthesis using CO2 and methanol

Performance of supported metal catalysts in the dimethyl carbonate production by direct synthesis using CO2 and methanol

Synthesis of activated carbon composited with Egyptian black sand for enhanced adsorption performance toward methylene blue dye

Synthesis of Activated Carbon Composited With Egyptian Black Sand for Enhanced Adsorption Performance toward Methylene Blue Dye

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