Knowledge Agora

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
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.
PDF

Similar Articles

ID	Score	Article
7409		Cwieka, K; Czelej, K; Colmenares, JC; Jablczynska, K; Werner, L; Gradon, L Supported Plasmonic Nanocatalysts for Hydrogen Production by Wet and Dry Photoreforming of Biomass and Biogas Derived Compounds: Recent Progress and Future Perspectives(2021)Chemcatchem, 13, 21
13970		Sahm, CD; Ciotti, A; Mates-Torres, E; Badiani, V; Sokolowski, K; Neri, G; Cowan, AJ; García-Melchor, M; Reisner, E Tuning the local chemical environment of ZnSe quantum dots with dithiols towards photocatalytic CO₂ reduction(2022)Chemical Science, 13, 20
11102		Zhong, MH; Li, XZ; Chu, XN; Gui, HG; Zuo, SX; Yao, C; Li, ZY; Chen, YS Solar driven catalytic conversion of cellulose biomass into lactic acid over copper reconstructed natural mineral(2022)