Fig. 3
The photothermal response of FeS2@CP NPs. (A) The temperature gradience and (B) the temperature elevation curve of FeS2@CP NPs in different concentrations under laser irradiation (1064 nm, 1 W/cm2) for 10 min. (C) The temperature elevation curve of FeS2@CP NPs under laser irradiation with different power densities for 10 min. (D) The Photostability of FeS2@CP NPs (50 µg/mL and 100 µg/mL) was evaluated by performing the lasering and cooling cycle several times. (E) The heating curve of FeS2@CP NPs (50 µg/mL) under laser irradiation and natural cooling process after laser shutdown. (F) Linear time data versus -ln(θ) obtained from the cooling period of the panel (E) to calculate the PCE (η, presented in panel (E)) of FeS2@CP NPs