The synergy of photodeposited CoNi co-catalysts for the photocatalytic performance of C₃N₄/CdS nanosheets: optimized Gibbs free energy and Co–S bridging bonds

Abstract

Transition metal co-catalysts exhibit considerable potential in photocatalytic water splitting process, but their limited activity and poor stability inhibit the extensive application, and therefore effective schemes are required to further...

Optimized hot electron injection from Cu nanoparticles to S-doped C3N4by the formed S–Cu bonds for an enhanced photocatalytic performance

“…64 For its H adsorption and H 2 desorption process, the Δ G closer to 0 eV ensures the stronger hydrolysis process from the aspect of thermodynamics. 65–68…”

“…64 For its H adsorption and H 2 desorption process, the DG closer to 0 eV ensures the stronger hydrolysis process from the aspect of thermodynamics. [65][66][67][68] Based on the above analysis, the photocatalytic H 2 evolution process of SCN-Cu is proposed, as shown in Fig. 8.…”

Construction of Interfacial P–Ni Bonding for Enhanced Hydrogen Evolution Performance of P-Doped C3N4/Ni Photocatalysts

“…Ni NPs were loaded onto P−C 3 N 4 by the simple photoreduction method. 29 Briefly, 20 mg of P−C 3 N 4 was ultrasonically dispersed in 50 mL of DI water containing 6 mL of TEOA, followed by the addition of 0.0143 g of NiCl 2 •6H 2 O and 0.0445 g of NaH 2 PO 2 •H 2 O to form homogeneous solution. After purging with argon gas for 40 min, the mixture was illuminated using a 300 W Xe lamp (CEL-HXF300).…”

A review on passivation engineering for improving photocatalytic hydrogen evolution performance

“…In this case, a simple and creative strategy is to passivate the interface defects through the introduction of interfacial chemical bonding. [30][31][32][60][61][62] For example, Zheng et al 60 constructed P-doped C 3 N 4 (P-C 3 N 4 ) via the thermal polymerization of urea with phytic acid as a P source. The doped P atoms could act as anchoring sites for photo-deposited Ni nanoparticles (NPs) on P-C 3 N 4 , and Ni-P-N bonds were spontaneously formed between Ni NPs and P-C 3 N 4 with doped P as the bridging ligand (Fig.…”

“…28,29 The passivation technique can be used to reduce the effect of photogenerated holes on the catalyst surface or provide additional protection for sensitive catalyst surfaces. [30][31][32] In other reports, passivation techniques can also release the stress between different semiconductors to guarantee the formation of high-quality interfaces. 33,34 However, to the best of our knowledge, there are scarce reviews thoroughly summarizing the application of the passivation technique in PHE although this topic has been gaining continuous attention.…”