@article{Cao2024, 
author = {Guangbiao Cao and Haoran Xing and Haoguan Gui and Chao Yao and Yinjuan Chen and Yongsheng Chen and Xiazhang Li},
title = {Plasmonic quantum dots modulated nano-mineral toward photothermal reduction of CO2 coupled with biomass conversion},
year = {2024},
journal = {Nano Research},
volume = {17},
number = {6},
pages = {5061-5072},
keywords = {photothermal catalysis, CO2 reduction, biomass conversion, plasmon, clay mineral},
url = {https://www.sciopen.com/article/10.1007/s12274-024-6521-9},
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 μmol·g−1·h−1) and CO generation (44.9 μmol·g−1·h−1), along with remarkable benzaldehyde generation rate of 79.5 μmol·g−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.}
}