Disordered nitrogen-defect-rich porous carbon nitride photocatalyst for highly efficient H2 evolution under visible-light irradiation

Cheng, Cheng; Shi, Jinwen; Wen, Linyuan; Dong, Chung‐Li; Huang, Yu‐Cheng; Zhang, Yazhou; Zong, Shichao; Diao, Zhidan; Shen, Shaohua; Guo, Liejin

doi:10.1016/j.carbon.2021.05.030

Cited by 92 publications

(33 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…g-C 3 N 4 is a metal-free organic semiconductor photocatalyst that can be readily synthesized by thermal polymerization of N-containing precursors, such as urea, melamine, and cyanamide ( Figure 13 A) [ 156 , 157 , 158 , 159 ]. g-C 3 N 4 can also be synthesized at low cost because these precursors are earth-abundant.…”

Section: Creation Of Vis-light-driven Water-splitting Semiconductor P...mentioning

confidence: 99%

Development and Functionalization of Visible-Light-Driven Water-Splitting Photocatalysts

et al. 2022

View full text Add to dashboard Cite

With global warming and the depletion of fossil resources, our fossil fuel-dependent society is expected to shift to one that instead uses hydrogen (H2) as a clean and renewable energy. To realize this, the photocatalytic water-splitting reaction, which produces H2 from water and solar energy through photocatalysis, has attracted much attention. However, for practical use, the functionality of water-splitting photocatalysts must be further improved to efficiently absorb visible (Vis) light, which accounts for the majority of sunlight. Considering the mechanism of water-splitting photocatalysis, researchers in the various fields must be employed in this type of study to achieve this. However, for researchers in fields other than catalytic chemistry, ceramic (semiconductor) materials chemistry, and electrochemistry to participate in this field, new reviews that summarize previous reports on water-splitting photocatalysis seem to be needed. Therefore, in this review, we summarize recent studies on the development and functionalization of Vis-light-driven water-splitting photocatalysts. Through this summary, we aim to share current technology and future challenges with readers in the various fields and help expedite the practical application of Vis-light-driven water-splitting photocatalysts.

show abstract

Section: Creation Of Vis-light-driven Water-splitting Semiconductor P...mentioning

confidence: 99%

Development and Functionalization of Visible-Light-Driven Water-Splitting Photocatalysts

et al. 2022

View full text Add to dashboard Cite

show abstract

“…4 The extensive use of solar energy to realize its efficient conversion to hydrogen energy has become the goal of many researchers in photocatalytic hydrogen evolution. 5–7 A suitable band gap, excellent light-trapping ability, abundant active sites, and a good morphological order have become the characteristics of excellent photocatalytic semiconductor catalysts. Among the explored non-noble metal-based catalysts, molybdenum-based metal sulfides, including Mo 2 S 3 , have been theoretically and experimentally proved to be potential candidates for hydrogen production.…”

Section: Introductionmentioning

confidence: 99%

ZIF-67 derived hierarchical hollow Co₃S₄@Mo₂S₃ dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

Jin

2022

Catal. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…The average carriers' lifetime (τ avg ) of the CF/Cu NSA/CuI/P3HT : PCBM photocathode is greater than that of CF /CuI/P3HT : PCBM photocathode, which is consistent with the order of steady-state PL intensity. [33][34][35] The above results prove that the improvement of the PEC performance of CF/Cu NSA/CuI/P3HT : PCBM photoelectrode is the synergistic effect of light absorption, carrier separation, and reactive sites. On one hand, compared with the planar Cu film, the vertically grown Cu NSA improves the contact area with each layer of photocathode, expands the distribution range of built-in electric field and improves the carriers separation ability.…”

Section: Resultsmentioning

confidence: 55%

Organic Photocathode Supported by Copper Nanosheets Array for Overall Water Splitting

Zhang

Sun

Zheng

et al. 2021

Chemistry A European J

View full text Add to dashboard Cite

The Z-scheme overall solar water splitting is a mimic of natural photosynthesis to convert solar energy into chemical energy. Since the energy levels of most organic semiconductors match well with the hydrogen evolution potential, they have great application prospects as photocathodes in Z-scheme photoelectrochemical systems. However, due to the weak light absorption and difficult carrier separation, the photocurrent density and onset potential of organic photocathodes are still low. To solve these problems, we introduced a copper nanosheets array (Cu NSA) framework under organic layers to increase the surface reaction sites, improve the light absorption and enhance the distribution range of built-in electric field simultaneously. As a result, the photocurrent density and onset potential of poly(3-hexylthiophene) : [6,6]-phenyl-C 61 -butyric acid (P3HT : PCBM) photocathode were enhanced significantly. The onset potential increased by 50 mV to 0.65 V vs. RHE, and the photocurrent density reached À 1 mA cm À 2 at 0 V vs. RHE, which was 18 times that of the sample without Cu NSA. The optimized photocathode was connected with titanium dioxide nanorods array photoanode in a tandem manner to realize the spontaneous overall water splitting. Without bias and co-catalyst, the photocurrent density was maintained at 110 μA cm À 2 and the solar-to-fuel conversion efficiency was 0.14 % in neutral solution. These results provide a feasible method for optimizing the performance of organic photocathodes.

show abstract

Disordered nitrogen-defect-rich porous carbon nitride photocatalyst for highly efficient H2 evolution under visible-light irradiation

Cited by 92 publications

References 65 publications

Development and Functionalization of Visible-Light-Driven Water-Splitting Photocatalysts

Development and Functionalization of Visible-Light-Driven Water-Splitting Photocatalysts

ZIF-67 derived hierarchical hollow Co₃S₄@Mo₂S₃ dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

Organic Photocathode Supported by Copper Nanosheets Array for Overall Water Splitting

Contact Info

Product

Resources

About

Disordered nitrogen-defect-rich porous carbon nitride photocatalyst for highly efficient H2 evolution under visible-light irradiation

Cited by 92 publications

References 65 publications

Development and Functionalization of Visible-Light-Driven Water-Splitting Photocatalysts

Development and Functionalization of Visible-Light-Driven Water-Splitting Photocatalysts

ZIF-67 derived hierarchical hollow Co3S4@Mo2S3 dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution

Organic Photocathode Supported by Copper Nanosheets Array for Overall Water Splitting

Contact Info

Product

Resources

About

ZIF-67 derived hierarchical hollow Co₃S₄@Mo₂S₃ dodecahedron with an S-scheme surface heterostructure for efficient photocatalytic hydrogen evolution