| Title |
Plasmonic quantum dots modulated nano-mineral toward photothermal reduction of CO2 coupled with biomass conversion |
| ID_Doc |
12476 |
| Authors |
Cao, GB; Xing, HR; Gui, HG; Yao, C; Chen, YJ; Chen, YS; Li, XZ |
| Title |
Plasmonic quantum dots modulated nano-mineral toward photothermal reduction of CO2 coupled with biomass conversion |
| Year |
2024 |
| Published |
|
| DOI |
10.1007/s12274-024-6521-9 |
| Abstract |
Simultaneous conversion of CO2 and biomass into value-added chemicals through solar-driven catalysis holds tremendous importance for fostering a sustainable circular economy. Herein, plasmonic Bi quantum dots were immobilized on phosphoric acid modified attapulgite (P-ATP) nanorod using an in-situ reduction-deposition method, and were employed for photocatalytic reduction of CO2 coupled with oxidation of biomass-derived benzyl alcohol. Results revealed that Bi atoms successfully integrated into the basal structure of P-ATP, forming chemically coordinated Bi-O-Si bonds that served as efficient transportation channels for electrons. The incorporation of high-density monodispersed Bi quantum dots induced a surface plasmon resonance (SPR) effect, expanding the light absorption range into the near-infrared region. As a consequence, the photo-thermal transformation was significantly accelerated, leading to enhanced reaction kinetics. Notably, 50% Bi/P-ATP nanocomposite exhibited the highest plasmon-mediated photocatalytic CH4 generation (115.7 mu molg(-1)h(-1)) and CO generation (44.9 mu molg(-1)h(-1)), along with remarkable benzaldehyde generation rate of 79.5 mu molg(-1)h(-1) in the photo-redox coupling system under solar light irradiation. The hydrogen protons released from the oxidation of benzyl alcohol facilitated the incorporation of more hydrogen protons into CO2 to form key CH3O- intermediates. This work demonstrates the synergistic solar-driven valorization of CO2 and biomass using natural mineral based catalyst. |
| Author Keywords |
photothermal catalysis; clay mineral; plasmon; CO2 reduction; biomass conversion |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001175063200002 |
| WoS Category |
Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied |
| Research Area |
Chemistry; Science & Technology - Other Topics; Materials Science; Physics |
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