Photocatalytic hydrogen evolution based on Cu 2 ZnSnS 4 , Cu 2 NiSnS 4 and Cu 2 CoSnS 4 nanocrystals

The effect of the triangular and spherical shaped CuSbS2 structure on the electrical properties of Au/CuSbS2/p-Si photodiode

“…2b) shaped structure. Since the synthesized materials are of the same crystalline structure, both of the XRD patterns showed similar results [29]. However, as observed in Fig.…”

Photocatalytic H2 Production from Water by Metal‐free Dye‐sensitized TiO2 Semiconductors: The Role and Development Process of Organic Sensitizers

“…These photosensitizers can be collectively called emissive dyes due to their strong fluorescence emission, and they have played an important role in early research of DSPs. Furthermore, some well‐performed photosensitizers like Eosin Y (EY) and its modified species were still commonly used as “standard dyes” in recent years [32] to evaluate the catalytic properties of various matrixes such as Na 2 Ti 2 O 4 (OH) 2 nanotubes, [32b] zeolites, [32e,h] N‐doped TiO 2 , [32g] graphene, [32j] Cu 2 XSnS 4 nanofibers (X=Zn, Ni, Fe, Co, Mn), [32l–n] and diverse co‐catalysts like noble metals [32a] and non‐noble metal oxides/hydroxides [32k]…”

Dye‐Sensitized Cu2XSnS4 (X=Zn, Ni, Fe, Co, and Mn) Nanofibers for Efficient Photocatalytic Hydrogen Evolution

“…The conduction-bande nergy levels of CZTS, CNTS, CFTS, CCTS, and CMTS nanofibers are À0.92, À0.55, À0.69, À0.73, and À1.1 V, respectively.S olar light is absorbed by EY dye[ E ox = 0.89 Vv s. normal hydrogen electrode (NHE)] [41] to form the excited state *EY (À1.1 V). [43] Conclusions Chalcogenide semiconductor nanofibers were fabricated by an electrospinning process followed by sintering to obtain crystalline Cu 2 XSnS 4 (CXTS, X = Fe, Co, Ni, Mn) nanofibers. This reaction proceeds readily because the CB levels of the CXTS nanofibers are more negative than the reduction potentialo fH + + /H 2 (À0.53 Vv s. NHE at pH 9).…”