Graphene aerogel-based NiAl-LDH/g-C3N4 with ultratight sheet-sheet heterojunction for excellent visible-light photocatalytic activity of CO2 reduction

Ni–Co Bimetallic Hydroxide Nanosheet Arrays Anchored on Graphene for Adsorption‐Induced Enhanced Photocatalytic CO2 Reduction

“…[7,8] Among the developed photocatalysts, transition metal hydroxides, as noble-metal-free cocatalysts, are attractive because they are naturally abundant, cost effective, and have high CO 2 adsorption capacity. [9][10][11] In particular, Ni(OH) 2 has been demonstrated to be a superior cocatalyst for CO 2 reduction. For example, Peng et al reported that Ni(OH) 2 is an efficient cocatalyst for CO 2 reduction because it enhances the photocatalytic CO production rate and product selectivity.…”

Boosting Interfacial Charge Transfer with a Giant Internal Electric Field in a TiO2 Hollow-Sphere-Based S-Scheme Heterojunction for Efficient CO2 Photoreduction

“…The corresponding charge transfer resistance (R ct ) of the TH/ WP-5 composite is estimated to be only 802.67 kΩ by fitting EIS plots, much lower than that of the pure TH (1450.70 kΩ), reflecting a smaller photogenerated charge migration resistance and more rapid carrier transfer through the tight interfacial contact in the TH/WP-5 S-scheme heterojunction. 47,48 The time-resolved fluorescence spectroscopy (TR-PL) spectra in Figure S14 show that the average lifetime of the TH/WP-5 composite (0.536 ns) is much shorter than that of the pure TH (1.676 ns), suggesting that the efficiency of separation of photogenerated carriers is improved in the TH/WP-5 composite. 49,50 Notably, the integral value is proportional to the number of accumulated positive charges on the semiconductor surface determined by subtracting the transient photocurrent density from the steady-state photocurrent versus time (Figure 6d).…”

“…In addition, the arc radius of the Nyquist curve from electrochemical impedance spectroscopy (EIS) for the TH/WP-5 composite is smaller than that of the pristine TH (Figure c). The corresponding charge transfer resistance ( R ct ) of the TH/WP-5 composite is estimated to be only 802.67 kΩ by fitting EIS plots, much lower than that of the pure TH (1450.70 kΩ), reflecting a smaller photogenerated charge migration resistance and more rapid carrier transfer through the tight interfacial contact in the TH/WP-5 S-scheme heterojunction. , The time-resolved fluorescence spectroscopy (TR-PL) spectra in Figure S14 show that the average lifetime of the TH/WP-5 composite (0.536 ns) is much shorter than that of the pure TH (1.676 ns), suggesting that the efficiency of separation of photogenerated carriers is improved in the TH/WP-5 composite. , …”

Phosphorus-modified two-dimensional graphdiyne (CnH2n−2)/ZnCdS forms S-scheme heterojunctions for photocatalytic hydrogen production

“…In recent years, the excellent stability and durability of carbon-based materials have gradually replaced the application of precious metals in the catalytic field, such as carbon nanotubes, carbonitride, 8–10 graphene, 11–13 C 60 , 14,15 and biological carbon. 16,17 Since the first synthesis of a new carbon material, graphdiyne (GDY), by Yuliang's group in 2010, 18,19 the scientific community has further explored it.…”