M104 Benedum Hall, 3700 O’Hara St., Pittsburgh, PA 15261. NanoScale Fabrication and Characterization Facility, University of Pittsburgh. Basic Spectrum Acquisition with Vertex 70.
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The Co 3O 4/g-C 3N 4 p-n heterojunctions effectively retard the recombination of photoinduced electron-hole pairs, promote charge separation, extend visible light absorption range and finally improve photocatalytic hydrogen evolution activity and stability. Rototec-Spintec NMR / ESR / EPR Price List 2016 / 2017. Guide to Operating the Bruker FT-IR Microscope. CIS Bruker MRI Console Dantec Phase Doppler Anenometer Laser System Dantec. The enhanced photocatalytic activity of Co 3O 4/g-C 3N 4 composites was originated from well-established p-n heterojunctions when certain amount of p-type Co 3O 4 nanoparticles were introduced and highly dispersed into n-type g-C 3N 4 matrix.
The as-constructed Co 3O 4/g-C 3N 4 composites were applied in visible-light-driven hydrogen evolution for the first time in which the mass loading of Co 3O 4 was optimized at 1 wt %, achieving a maximal hydrogen evolution rate of 50 μmol/h/g, as higher as 5 times than those of pure g-C 3N 4 and Co 3O 4. This facile aqueous-induced complexation of organic precursors guaranteed that Co 3O 4 was homogeneously dispersed in g-C 3N 4 matrix even if the mass loading of Co 3O 4 reached up to 0.3–3 wt %. Co 3O 4 imbedded g-C 3N 4 (Co 3O 4/g-C 3N 4) heterojunction photocatalysts were synthesized via initial dissolution of C, N and Co organic precursors in aqueous phase, subsequent evaporation of water and final thermopolymerization.
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