CO 2 adsorption using TiO 2 composite polymeric membranes: A kinetic study

Hafeez, Sarah; Fan, Xianfeng; Hussain, Arshad; Martín, Claudia Fernández

doi:10.1016/j.jes.2015.04.019

Cited by 20 publications

(10 citation statements)

References 33 publications

(31 reference statements)

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“…A stainless steel gas permeation setup with an effective area of 8 cm 2 was used for the execution of permeation experiments. 42 A bubble flow meter was used to measure the flowrates of the both O 2 and N 2 gases at constant temperature and varying pressures i.e. 1, 2, 3, 4 and 5 bars.…”

Section: Methodsmentioning

confidence: 99%

Sonochemical synthesis of Co₃O₄nanoparticles deposited on GO sheets and their potential application as a nanofiller in MMMs for O₂/N₂separation

et al. 2021

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Section: Methodsmentioning

confidence: 99%

Sonochemical synthesis of Co₃O₄nanoparticles deposited on GO sheets and their potential application as a nanofiller in MMMs for O₂/N₂separation

et al. 2021

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“…In 2015, pure CA and CA-TiO 2 composite membranes were produced by Hafeez and co-workers to study the CO 2 adsorption behavior. 251 The high CO 2 adsorption capacity may improve CO 2 solubility and diffusion in the CA-TiO 2 composite membrane, improving CO 2 separation. Nevertheless, compared to pure CA membrane, CO 2 adsorption is higher in the CA-TiO 2 mixed membranes from 2.5 bars.…”

Section: Mechanism For Co 2 Capturementioning

confidence: 99%

Recent developments in polysaccharide and lignin-based (nano)materials for CO₂ capture

Nezafat,

Nasrollahzadeh,

Javanshir

et al. 2023

Green Chem.

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“…This phenomenon results in a significant improvement in NO adsorption capacity of the sorbent. Hafeez et al (2015) reported that NO adsorption does not exclusively follow intraparticle diffusion mechanism only, but may also involve other different adsorption mechanism at higher reaction temperature. Four kinetic models (pseudo-first order, pseudo-second order, Elovich, Avrami) were fitted with the experimental data to determine the possible adsorption mechanisms at different reaction temperatures.…”

Section: Kinetic Studiesmentioning

confidence: 99%

Nitric oxide removal by zinc chloride activated oil palm empty fruit bunch fibre

Lin¹,

Ibrahim²,

Ahmad³

et al. 2021

Mal. J. Fund. Appl. Sci.

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Nitric oxide (NO) emission is known to pose detrimental effects towards the environment and human beings. Low-temperature NO removal by activated carbon from agricultural waste materials is affordable due to the use of low-cost materials as precursor and elimination of the need for flue gas reheating. The use of chemical agents in activated carbon production improves the performance of waste materials in NO removal. The performance of NO removal was investigated via breakthrough experiment using oil palm empty fruit bunch (EFB) activated with zinc chloride (ZnCl2) at different concentrations (0.1, 0.5, and 1.5 M). Activation of EFB with 0.5 M ZnCl2 resulted in the formation of well-defined micropores, but the use of higher concentration of ZnCl2 resulted in widening of developed pores and intense pore blockage which reduce the accessibility of NO molecules to the adsorption sites. An adsorption isotherm study conducted using 0.5 M ZnCl2/EFB sample with varying NO concentration between 300-1000 ppm indicated that the adsorption process was best defined by Langmuir isotherm model. In addition, adsorption kinetic was investigated at different temperatures; i.e. 100, 150, 200, 250 and 300 °C. NO removal was found to follow Avrami kinetic model at T=100 °C, while upon further increase in temperature, the process was better fitted to the pseudo-second order kinetic model. NO adsorption capacity increases significantly beyond 250 °C up to 1000 mg/g. The activation energy of NO adsorption fell into two distinct regions: -4.73 kJ/mol at 100-200 °C and 84.04 kJ/mol at 200-300 °C. At lower temperature, the adsorption process was exothermic and followed physisorption path, while the increase in reaction temperature led to slower rate of reaction. It was concluded that the removal of NO using EFB modified with ZnCl2 at optimized condition could be a promising alternatives for treating NO-containing flue gas.

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CO 2 adsorption using TiO 2 composite polymeric membranes: A kinetic study

Cited by 20 publications

References 33 publications

Sonochemical synthesis of Co₃O₄nanoparticles deposited on GO sheets and their potential application as a nanofiller in MMMs for O₂/N₂separation

Sonochemical synthesis of Co₃O₄nanoparticles deposited on GO sheets and their potential application as a nanofiller in MMMs for O₂/N₂separation

Recent developments in polysaccharide and lignin-based (nano)materials for CO₂ capture

Nitric oxide removal by zinc chloride activated oil palm empty fruit bunch fibre

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CO 2 adsorption using TiO 2 composite polymeric membranes: A kinetic study

Cited by 20 publications

References 33 publications

Sonochemical synthesis of Co3O4nanoparticles deposited on GO sheets and their potential application as a nanofiller in MMMs for O2/N2separation

Sonochemical synthesis of Co3O4nanoparticles deposited on GO sheets and their potential application as a nanofiller in MMMs for O2/N2separation

Recent developments in polysaccharide and lignin-based (nano)materials for CO2 capture

Nitric oxide removal by zinc chloride activated oil palm empty fruit bunch fibre

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Product

Resources

About

Sonochemical synthesis of Co₃O₄nanoparticles deposited on GO sheets and their potential application as a nanofiller in MMMs for O₂/N₂separation

Sonochemical synthesis of Co₃O₄nanoparticles deposited on GO sheets and their potential application as a nanofiller in MMMs for O₂/N₂separation

Recent developments in polysaccharide and lignin-based (nano)materials for CO₂ capture