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Journal of Purity, Utility Reaction and Environment
The Journal of Purity, Utility Reaction & ENVIRONMENT focuses upon six aspects of chemical engineering: chemical reaction engineering, environment chemical engineering, and materials synthesis and processing, catalyst surface reaction, optimization and control.
Effect of Basicity on Amination of Activated Carbon Pellets Modified for CO2 Adsorption
Acid pre-oxidation was used on activated carbon (AC) pellets to increase the amount of oxygen complexes that could serve as sites for creating surface nitrogen functionalities (SNFs) during amination. Four acids with different basicity (HNO3, H2SO4, H3PO4) and H2O2 were used as pre-oxidants. The study of pHpzc showed that H2SO4 and H3PO4 induced highest acidity on AC whilst non-acidic H2O2 had the least effect. Results of textural examination indicated that H2SO4 brought about highest depreciation to the sample’s textural properties whilst H2O2 somehow improved them. Upon amination, both the structural and basic properties were improved. Based on the amount of SNFs created, the efficiency of the oxidants follows this trend HNO3 > H3PO4 > H2SO4 > H2O2. Read More >
Journal of Purity, Utility Reaction and Environment
The Journal of Purity, Utility Reaction & ENVIRONMENT focuses upon six aspects of chemical engineering: chemical reaction engineering, environment chemical engineering, and materials synthesis and processing, catalyst surface reaction, optimization and control.
Effect of Basicity on Amination of Activated Carbon Pellets Modified for CO2 Adsorption
Acid pre-oxidation was used on activated carbon (AC) pellets to increase the amount of oxygen complexes that could serve as sites for creating surface nitrogen functionalities (SNFs) during amination. Four acids with different basicity (HNO3, H2SO4, H3PO4) and H2O2 were used as pre-oxidants. The study of pHpzc showed that H2SO4 and H3PO4 induced highest acidity on AC whilst non-acidic H2O2 had the least effect. Results of textural examination indicated that H2SO4 brought about highest depreciation to the sample’s textural properties whilst H2O2 somehow improved them. Upon amination, both the structural and basic properties were improved. Based on the amount of SNFs created, the efficiency of the oxidants follows this trend HNO3 > H3PO4 > H2SO4 > H2O2. Read More >