Reductive removal of dissolved oxygen in water by hydrazine over cobalt oxide catalyst supported on activated carbon fiber

Moon, Jeon-Soo; Park, Kwang-Kyu; Kim, Jong-Ho; Seo, Gon

doi:10.1016/s0926-860x(00)00423-3

Cited by 32 publications

(10 citation statements)

References 6 publications

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“…The peak around the 500 cm -1 can be related to vibrations of Fe-D that confirms the presence of magnetic nanoparticles. This result is in agreement with the finding of Moon et al (2000). The peaks at 1060 -1 , and 1070 cm -1 are related to C-D-C stretching vibrations cm of chitosan.…”

Section: Immobilization Efficiencysupporting

confidence: 93%

Characteristics of glucose oxidase immobilized on Magnetic Chitosan Nanoparticles

et al. 2020

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Ommobilization process is used to facilitate the enzyme recovery and reusability. The aims of this study were to evaluate the effect of different amounts of chitosan on immobilization efficiency of Glucose Dxidase (GDX), pH effect on enzyme activity and changes of kinetic characteristics of enzyme immobilized on Magnetic Chitosan Nanoparticles (MCNP). GDX was immobilized on MCNP with cross bonds and Schiff base covalent connections. The sample with 0.3 g of chitosan had the highest immobilization efficiency (41.30%). Morphology of nanoparticles was investigated by Scanning Electron Microscopy (SEM). Ommobilization of GDX on magnetic nanoparticles was verified with Fourier Transform Onfrared (FTOR). The effect of pH on enzyme activity was similar on both immobilized enzyme (OE) and free enzyme (FE). The evaluation of kinetic parameters for OE and FE has showed that the effectiveness factor was 0.45. Generally, it could be concluded that magnetic nanoparticles with 0.3 g chitosan could provide a suitable medium for immobilization of GDX.

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Section: Immobilization Efficiencysupporting

confidence: 93%

Characteristics of glucose oxidase immobilized on Magnetic Chitosan Nanoparticles

et al. 2020

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“…Recently, hollow fiber membrane contactor with high efficiency and some other advantages have been utilized to remove dissolved Oxygen but their use is still not common [5]. Chemical methods such as the use of sodium sulphite hydrazine, carbohydrazide, β-ketogluconate, and gallic acid or catalytic reduction offer a significant disadvantage in that a further, often toxic, impurity is introduced into the system [6,7]. Sodium sulfite is another agent for Oxygen removal available in the industry which accounts for its use in low pressure systems.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Different Parameters on the Efficiency of the Catalytic Reduction of Dissolved Oxygen

Moradian¹,

Delijani²,

Koshky³

2013

Thermal Power Plants - Advanced Applications

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“…Activated carbon fibre (ACF) is highly microporous carbon material [15][16][17] that is commercially available in the form of fibre tows, cloths (fabrics), papers, mats and felts [18]. ACF is widely used in various separation, purification and catalytic processes [19].…”

Section: Introductionmentioning

confidence: 99%

Aerosol palladium activation for electroless copper deposition and heat treatment with NO injection to fabricate Cu oxide/carbon fibre

Byeon

Lee

Hwang

2009

J. Phys. D: Appl. Phys.

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This paper introduces a novel method for fabricating copper (Cu) oxide/activated carbon fibre (ACF) through the aerosol palladium (Pd) activation for use in electroless Cu deposition and heat treatment of Cu deposited ACF with nitric monoxide (NO) gas injection. Electroless Cu deposition was initiated by catalytically activating the ACF surface with spark generated Pd aerosol nanoparticles. The catalytically activated ACF was placed into a solution used for the electroless Cu deposition. Subjecting the Cu deposited ACF to a heat treatment in a NO/nitrogen (N 2) gas injection (1000 ppm NO) resulted in changes to the morphology of the Cu particles. As the temperature increased from 100 to 500 • C, the relative mass fraction of oxygen in the Cu particles increased from 3.6% to 14.2% and the fraction of Cu decreased from 41.2% to 34.1%, which was caused by the formation of Cu oxides (Cu 2 O and CuO). The corresponding surface area and pore volume of the ACF decreased from 1019 m 2 g −1 to 401 m 2 g −1 and from 0.40 cm 3 g −1 to 0.18 cm 3 g −1 , respectively. The morphological evolution and decrease in porosity were attributed to volume expansion of Cu particles during oxidation.

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Reductive removal of dissolved oxygen in water by hydrazine over cobalt oxide catalyst supported on activated carbon fiber

Cited by 32 publications

References 6 publications

Characteristics of glucose oxidase immobilized on Magnetic Chitosan Nanoparticles

Characteristics of glucose oxidase immobilized on Magnetic Chitosan Nanoparticles

The Effect of Different Parameters on the Efficiency of the Catalytic Reduction of Dissolved Oxygen

Aerosol palladium activation for electroless copper deposition and heat treatment with NO injection to fabricate Cu oxide/carbon fibre

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