Fig. 1: The engineered optically selective Janus design.
a The simulated temperature at given εMIR and absorptance of sunlight. At high light power, εMIR plays a decisive role in the obtained temperature. b Schematic of depressing εMIR to obtain an ideal photothermal catalyst with both broadband and selective spectrum, as well as the AM 1.5 G solar spectrum and the radiation spectrum of a blackbody at 673 K. c Schematic of nanoparticles loaded within macroporous Ti3C2Tx as catalysts for photothermal catalysis. The flat Ti3C2Tx flakes depress εMIR, meanwhile, the porous structure facilitates the mass transfer of reactants, thus the designed catalyst effectively drives the photothermal catalysis process. d The selective spectrum of engineered optically selective catalyst, as well as the AM 1.5 G solar spectrum and the radiation spectrum of a blackbody at 673 K.
