Figure 4.
(a) UV-vis diffuse reflectance spectra (DRS) of as-synthesized BTC and BTTC-x (x=100, 120, 140, and 160 °C, respectively); (b) N2 adsorption-desorption isotherms of the as-prepared BTC, TTC-120, and BTTC-120 powders; (c) Photocurrent response and (d) electrochemical impedance spectra of BTC, TTC-120, and BTTC-120.