1D/2D CeO2/ZnIn2S4 Z-scheme heterojunction photocatalysts for efficient H2 evolution under visible light

CoP-Embedded Graphitic N-Doped C Nanosheets in Ohmic Contact with S-Deficient CdS Nanocrystals Triggering Efficient Visible-Light Photocatalytic H2 Evolution

“…We can notice from Figure b that a new Co 2p peak at 783.7 eV appears in the 70%-CdS/CoP-CN composite, which could be ascribed to the Co–S species derived from the chemical bonding of CdS and CoP-CN. Moreover, the S 2p spectrum of 70%-CdS/CoP-CN exhibits one set of additional doublet signals at 162.5–163.3 eV besides the doublet peaks of 161.0–162.2 eV belonging to S 2– ions (Figure c), consistent with that of S 2 2– species present in CoS, implying that Co–S bonds are generated after the integration of CdS and CoP-CN. In addition, the P 2p, C 1s, and N 1s spectra (Figure d–f) of 70%-CdS/CoP-CN confirm that the chemical valence states of the P, C, and N elements are preserved after the hybridization reaction.…”

Visible-light-responsive S-vacancy ZnIn2S4/N-doped TiO2 nanoarray heterojunctions for high-performance photoelectrochemical water splitting

“…Interestingly, compared with N–TiO 2 , the absorption range of the S v -ZIS/N–TiO 2 heterojunction has slightly changed, which may be due to the quantum confinement of S v -ZIS nanosheets. 38 This may indicate that the visible light response of the prepared photocatalysts is mainly derived from N–TiO 2 rather than from the usual ZIS.…”

Fabrication of heterostructured Pd-porphyrin MOFs/ZnIn2S4composites to boost photocatalytic hydrogen evolution under visible light irradiation

“…2b, the characteristic peaks of zinc, indium, and sulfur elements are easily observed in the pure ZIS sample. 34 Meanwhile, the Pd-PMOFs possessed the main characteristic peaks of carbon, nitrogen, oxygen and palladium. Significantly, the Pd-PMOFs@ZIS photocatalysts displayed all the characteristic peaks of pure ZIS and Pd-PMOFs, covering C 1s, O 1s, N 1s, Pd 3d, S 2p, In 3d and Zn 2p.…”