“…Compared to b-CN, a significant PL quenching of ca . 65% is detected for mtw-CNT 1.0 , implying a suppressed charge recombination due to the ideal electron migration channels in the 1D tubular framework and the increased charge diffusion rate in the mesoporous π -conjugative C 3 N 4 system [59,60] . Moreover, the PL peak of mtw-CNT 1.0 blue-shifts to 453 nm in line with the widening bandgap, as is revealed by the UV-vis DRS analysis.…”
“…Compared to b-CN, a significant PL quenching of ca . 65% is detected for mtw-CNT 1.0 , implying a suppressed charge recombination due to the ideal electron migration channels in the 1D tubular framework and the increased charge diffusion rate in the mesoporous π -conjugative C 3 N 4 system [59,60] . Moreover, the PL peak of mtw-CNT 1.0 blue-shifts to 453 nm in line with the widening bandgap, as is revealed by the UV-vis DRS analysis.…”
“…Compared with TTI-COF, a signicant decrease of uorescence of TTT-COF meant lower recombination rate of photogenerated electronhole pairs (Fig. 3b), and a shorter transient uorescence lifetime of TTT-COF conrmed higher conduction efficiency of photocarriers 17,18 (Fig. 3c).…”
“…Suitable heteroatoms for anchoring UMNPs that have been reported include N, O, S, P and B atoms. [38][39][40][41] These heteroatoms may not only provide nucleation sites for UMNPs, but also improve the electron transport between UMNPs and the supports. Different heteroatoms are usually chosen for different UMNPs.…”
Section: The Electronic Confinement Effects Originated From the Intermentioning
confidence: 99%
“…doping to introduce functionality onto the carbon support, which provides anchoring sites for UMNPs. [38][39][40][41] At the same time, the doping of heteroatoms in the carbon materials can also effectively tune the properties of UMNPs anchored on the supports, further facilitating the catalytic reaction process and improving the catalytic efficiency.…”
Section: Synthesis Of Umnps Supported By Carbon Materialsmentioning
As a unique class of nanomaterials with high surface-area-to-volume ratio and narrow size distribution, ultrafine metal nanoparticles (UMNPs) have shown exciting properties in many applications, particularly in the field of...
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