CdCl 2 -assisting heat-treatment: Enhanced photoelectrocatalytic hydrogen generation and stability of CdS/ZnO nanoheterojunction arrays

Synthesis and Characterization of ZnNiIn Layered Double Hydroxides Derived Mixed Metal Oxides with Highly Efficient Photoelectrocatalytic Activities

“…Meanwhile, I–V curves were measured under the same conditions (Figure C), which further confirmed the higher photocurrent response of the ZNI-1-MMO-1.5 V. Electrochemical impedances spectroscopy (EIS) measurements were conducted to evaluate the charge transfer property. As shown in Figure D, all Nyquist diagrams have the normal arc shape, representing the significant impedance spectra of the heterojunction capacitance and resistance parallel circuit. , Among the four samples, the EIS Nyquist plot of the ZNI-1-MMO-1.5 V electrode shows the smallest arc radius, indicating its minimal resistance for interfacial charge transfer . The highest photocurrent density and the minimal interfacial charge transfer resistance of ZNI-1-MMO-1.5 V photoelectrodes signified an improved photoelectrocatalytic efficiency of organic pollutant degradation.…”

“…As shown in Figure 13D, all Nyquist diagrams have the normal arc shape, representing the significant impedance spectra of the heterojunction capacitance and resistance parallel circuit. 66,67 Among the four samples, the EIS Nyquist plot of the ZNI-1-MMO-1.5 V electrode shows the smallest arc radius, indicating its minimal resistance for interfacial charge transfer. 14 The highest photocurrent density and the minimal interfacial charge transfer resistance of ZNI-1-MMO-1.5 V photoelectrodes signified an improved photoelectrocatalytic efficiency of organic pollutant degradation.…”

Interstitially O-doped CdxZn1−xS solid solution derived from chalcogenide molecular clusters for photocatalytic hydrogen evolution

“…The morphological difference between 400-Cd and 500-Cd may be ascribed to CdCl 2 . 9,10 In the mixture of ZSP-based microcrystals and CdCl 2 salts, CdCl 2 wraps around ZSP microcrystals. When the pyrolysis temperature is set at 400 °C, partial CdCl 2 salts may diffuse into ZSP microcrystals, and granular Cd x Zn 1−x S NPs were gradually formed.…”

“…Solar water splitting to generate hydrogen over photocatalysts is considered as a promising approach to address the energy crisis and environmental pollution issues. [1][2][3][4][5][6] Various semiconducting materials, such as metal oxides, [7][8][9] metal sulfides, [10][11][12][13][14][15][16] and carbon nitrides, 17,18 have been investigated as potential candidates for solar water splitting. Among them, metal sulfide solid solutions have attracted the attention of the academic community for a long time because their band gaps can be adjusted in a wide range.…”

Interrogating solar photoelectrocatalysis on an exfoliated graphite–BiVO4/ZnO composite electrode towards water treatment

“…23 Therefore, ZnO has been combined with visible light active semiconductors to form a heterojunction and such composite has shown higher photocatalytic activity for both degradation of organic pollutants and water spilling for evolution of hydrogen. [23][24][25] Basically, an heterojunction is formed when two semiconductors of unequal energy band gaps are combined together in a way that results in band alignment. Several methods such as hydrothermal, chemical bath deposition, calcination, sol-gel process and chemical deposition have been reportedly used for formation of heterojunctions.…”