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The lower CO2 utilization and poor charge conductivities have limited the application of MOFs in photocatalysis. In this work, different alkylamines (Ethylenediamine (EN), Diethylenetriamine (DETA) and Triethylenetetramine (TETA) ) were successfully introduced into MIL-101-Cr by post-modification and created abundant CO2 chemisorption sites in structures. Photocatalysis reaction showed that the alkylamine-modification promoted the charge separation and migration rate, and enhanced the reduction potential of electron generated by the MOF photocatalyst. Among them, the EN-modified material exhibits the highest CO generation rate of 47.2 µmol·h-1·g-1 with high selectivity of 96.5 %, much superior than the pristine MOFs MIL-101-Cr, MIL-101-SO3H, as well as the DETA and TETA-modified products, which can be ascribed to the abundant chemisorption sites for CO2 reactants and the optimized pore size in structure. The strategy of introduction of alkylamines group as CO2 chemisorption sites has been demonstrated to be a new pathway for design of efficient MOF catalyst for CO2 photoreduction.
This article was published in the following journal.
Name: ACS applied materials & interfaces
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Local surface sites on antibodies which react with antigen determinant sites on antigens. They are formed from parts of the variable regions of FAB FRAGMENTS.
Semisynthetic thienamycin that has a wide spectrum of antibacterial activity against gram-negative and gram-positive aerobic and anaerobic bacteria, including many multiresistant strains. It is stable to beta-lactamases. Clinical studies have demonstrated high efficacy in the treatment of infections of various body systems. Its effectiveness is enhanced when it is administered in combination with CILASTATIN, a renal dipeptidase inhibitor.
A natural tocopherol with less antioxidant activity than ALPHA-TOCOPHEROL. It exhibits antioxidant activity by virtue of the phenolic hydrogen on the 2H-1-benzopyran-6-ol nucleus. As in BETA-TOCOPHEROL, it also has three methyl groups on the 6-chromanol nucleus but at different sites.
A natural tocopherol with less antioxidant activity than alpha-tocopherol. It exhibits antioxidant activity by virtue of the phenolic hydrogen on the 2H-1-benzopyran-6-ol nucleus. As in GAMMA-TOCOPHEROL, it also has three methyl groups on the 6-chromanol nucleus but at different sites.
Substances used to allow enhanced visualization of tissues.