Facile construction of a ZIF-67/AgCl/Ag heterojunction via chemical etching and surface ion exchange strategy for enhanced visible light driven photocatalysis

Abstract

It is of great importance to design and fabricate heterojunction photocatalysts to improve photocatalytic performance.

2D/3D-Shaped Fe0.8Ni0.2S2/ZIF-67 as a Nanozyme for Rapid Measurement of H2O2 and Ascorbic Acid with a Low Limit of Detection

“…A satellite oscillation peak was at 724.8 eV. The peaks at 712.7 and 727.2 eV correspond to Fe–O and Fe 3+ , respectively. , In Figure C, the peaks belong to Ni 2+ , Ni 3+ , and Ni–O and the satellite oscillation at 856.4, 874.2, 878.3, and 863.2 eV, respectively. − Figure D shows the S 2p spectrum with three peaks at 162.9, 164.1, and 168.8 eV corresponding to the S 2 2– in pyrite FeS 2 , sulfur atoms of the intermediate oxidation state, and the SO x group, respectively. , Figure E shows the Co 2p spectrum, in which Co 2+ and a satellite oscillation were found. − Figure F shows the C 1s spectra, in which the C–C, the C–N, and the O–CO bonds are at 284.8, 286.5, and 289.2 eV, respectively. − The bonding energy represents the change in the electronic density of the element. The higher the binding energy means the lower the electronic density .…”

Ag‐doped CoP Hollow Nanoboxes as Efficient Water Splitting Electrocatalysts and Antibacterial Materials

“…The peaks at 367.78 and 373.78 eV were ascribed to the Ag + , while the BE at 368.58 and 375.08 eV were attributed to Ag 0 . The above analysis manifested that Ag was introduced into Ag‐CoP HNBs in the form of Ag 0 and Ag + [45] . For the XPS spectrum of C 1s ( Figure 4e), the peaks at 284.8, 286.4 and 288.8 eV were the sp 2 hybridized C, C−O and C=O [46] .…”

“…The above analysis manifested that Ag was introduced into Ag-CoP HNBs in the form of Ag 0 and Ag + . [45] For the XPS spectrum of C 1s ( Figure 4e), the peaks at 284.8, 286.4 and 288.8 eV were the sp 2 hybridized C, CÀ O and C=O. [46] In O 1s XPS spectrum (Figure 4f), three characteristic peaks of 532.4, 531.3 and 529.4 eV were designated to O 2À , OÀ H and adsorbed H 2 O molecules.…”

Coating metal–organic frameworks on plasmonic Ag/AgCl nanowire for boosting visible light photodegradation of organic pollutants

“…The lifetime of photogenerated electrons is prolonged by a good matching of the energy band structure of MOFs and AgCl, and the SPR effect of Ag. Inspired by the highly efficient catalysis, a lot of Ag/AgCl/MOFs photocatalytic systems have been established to photodegrade organic pollutants, including Ag/AgCl@MIL-88A(Fe), [35][36][37] Ag/AgCl/NH 2 -UiO-66, 38 Ag/ AgCl@MIL-53-Fe, 39 ZIF-67/AgCl/Ag, 40 Ag/AgCl/NH 2 -MIL-101(Fe) 41 etc. In these Ag/AgCl/MOFs photocatalytic systems, MOFs are excited by light radiation to produce electrons in the conduction band (CB) and holes in the valence band (VB).…”