Efficient Photocatalytic CO <sub>2</sub> Reformation of Methane on Ru/La‐g‐C <sub>3</sub> N <sub>4</sub> by Promoting Charge Transfer and CO <sub>2</sub> Activation**
نویسندگان
چکیده
Artificial photosynthesis, in which solar energy drives CO2 to produce hydrocarbon fuels, is considered an effective way solve the increasingly serious crisis and mitigate greenhouse effect. Herein, layered porous Ru-loaded La-doped g-C3N4 nanosheets (Ru-LGCNs) were prepared by one-step calcination, followed situ photoreduction deposition of Ru. The Ru-LGCN showed excellent photocatalytic reformation methane performance under visible light, generation rates CO, CH3CH3, CH3OH CH3CH(OH)CH3 133, 154, 251 133 μmol h−1 g−1, respectively. reason for enhanced activity synergistic effect bimetallic Ru La. It worth noting that doped La can provide a good channel charge transfer between LGCNs CO2. This change behavior transport path beneficial break C=O bonds on active site generate methyl radicals Ru, resulting C2+ hydrocarbons.
منابع مشابه
Photoredox Reaction of [Hg(cyclam)|2+[Co(CO)4r Induced by Outer Sphere Charge Transfer Excitation
Photoredox processes induced by metal-tometal charge transfer (MMCT) excitation have a t tracted much attention in recent years [1-4]. These processes may be exploited for applications in arti ficial photosynthesis and photocatalysis [5, 6], They also facilitate our understanding of optical and thermal electron transfer in general [7, 8], A point of particular interest is the relationship be...
متن کاملPhotocatalytic degradation of Congo Red dye by using nano ZnO and Ni-Co-ZnO nanocomposites
Photocatalysis has attracted significant attention as a potential issue for the degradation of toxic organic pollutants such as Congo Red. In this research spherical Pure ZnO nano particles and Ni-Co-ZnO nano composites (Zn0.95Ni0.04Co0.01O, Zn0.95Ni0.025Co0.025O and Zn0.95Ni0.01Co0.04O) have been synthesized by precipitation method. X- ray diffraction, Fourier transform Infra Red ,field emis...
متن کاملS, N Co-Doped Graphene Quantum Dot/TiO2 Composites for Efficient Photocatalytic Hydrogen Generation
S, N co-doped graphene quantum dots (S,N-GQDs) coupled with P25 (TiO2) (S,N-GQD/P25) have been prepared via simply hydrothermal method. The as-prepared S,N-GQD/P25 composites exhibited excellent photocatalytic hydrogen generation activities, with a significantly extended light absorption range and superior durability without loading any noble metal cocatalyst. The photocatalytic activity of thi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: ChemPhotoChem
سال: 2021
ISSN: ['2367-0932']
DOI: https://doi.org/10.1002/cptc.202100020