Two-dimensional mesoporous g-C 3 N 4 nanosheet-supported MgIn 2 S 4 nanoplates as visible-light-active heterostructures for enhanced photocatalytic activity

Chen, Wei; Hua, Yuxiang; Wang, Ying; Huang, Ting; Liu, Tianyu; Liu, Xiaoheng

doi:10.1016/j.jcat.2017.01.005

Cited by 125 publications

(40 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The characteristic peak of 812 cm −1 is due to the particular breathing mode for s-triazine (C 3 N 3 ) units of g-C 3 N 4 [7]. The FTIR absorption band at the region of >3200 cm −1 is ascribed to O–H of absorbed water and the stretching modes of uncondensed amine groups [4]. Obviously, after the combination of CdIn 2 S 4 and CCN, the resulting CISCCN nanocomposites possess similar FTIR spectra as that of the CCN sample.…”

Section: Resultsmentioning

confidence: 99%

“…The serious environmental concerns and increasing global energy demand have instigated growing awareness in the field of alternative energy generation over the past few decades. Photocatalysis technology based on semiconductor materials is a promising strategy for advancing the utilization of solar energy to the level of viable industrial production, such as organic synthesis [1–2], environmental governance [3–4], as well as fuel production [5–6].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of novel C-doped g-C₃N₄ nanosheets coupled with CdIn₂S₄ for enhanced photocatalytic hydrogen evolution

Chen

Niu

Song

2019

Beilstein J. Nanotechnol.

View full text Add to dashboard Cite

Photocatalytic hydrogen generation from water splitting has become a favorable route for the utilization of solar energy. An effective strategy, the combination of C-doping with nanocomposite semiconductors, is presented in this work. C-doped g-C3N4 (CCN) was prepared by supramolecular self-assembly and subsequently a number of CdIn2S4/CCN composite photocatalysts were designed and fabricated though in situ decoration of CdIn2S4 crystals on the surface of CCN nanosheets via a hydrothermal method. This unique architecture was able to efficiently promote the transfer and separation of photon-generated charges, enhance light absorption, and significantly increase photocatalytic H2 production. Detailed characterization was performed to analyze the crystal structure, morphology, elementary composition, optical properties and catalytic mechanism. The CdIn2S4/CCN nanocomposites with optimal CdIn2S4 content exhibited a maximum H2 production rate of 2985 μmol h−1 g−1, almost 15 times more than that obtained using pure g-C3N4 (205 μmol h−1 g−1). In addition, the hybrid photocatalysts display good recycling stability under visible-light irradiation. This research may provide promising information for the preparation of more efficient multifunctional hybrid photocatalysts with excellent stability in fine chemical engineering.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of novel C-doped g-C₃N₄ nanosheets coupled with CdIn₂S₄ for enhanced photocatalytic hydrogen evolution

Chen

Niu

Song

2019

Beilstein J. Nanotechnol.

View full text Add to dashboard Cite

show abstract

“…The first peak belonged to the outside elements of C, the last peak ascribed to N-C = N (Liang et al, 2019a). In addition, three components were exhibited in N 1s spectra at 400.9, 399.4, and 398.5 eV in Figure 3B, corresponding to the N-H or N-H 2 , the tertiary nitrogen and the sp 2 hybridized CN in the heptazine rings, respectively (Chen et al, 2017; Wang et al, 2019). Interestingly, in Figure 3C, the peak was detected in the high-resolution Na 1s spectrum over Na-CMCN, but no peak was found in MCN, which denoted that Na element was successfully doped in the Na-CMCN basic structure.…”

Section: Resultsmentioning

confidence: 99%

The Improvement of Photocatalysis H2 Evolution Over g-C3N4 With Na and Cyano-Group Co-modification

Liu

Shi

et al. 2019

Front. Chem.

View full text Add to dashboard Cite

Na and cyano-group co-modified g-C3N4 was easily synthesized and its physicochemical property was completely analyzed. The results manifested that Na and cyano-group modification could heighten visible light absorbed ability and accelerate photoinduced charge separation. When resultant Na and cyano-group co-modified g-C3N4 was splitting water H2 evolution, its H2 evolution rate was obviously improved. Furthermore, it also kept excellent stable capacity of H2 evolution and stability of chemical structure. Hence, this present study does not only develop an efficient strategy to boost photocatalytic property of g-C3N4 based catalysts, but also provides useful guidance for designing more effective photocatalysts.

show abstract

“…[13][14][15][16] In particular, the heterojunction of p-type sulfide with n-type g-C 3 N 4 has been intensively investigated due to the high suitable band matching of each other and the narrow band gap of p-type sulfide, which engages excellent absorption of solar energy. [17] For instance, MoS 2 /g-C 3 N 4 , [4] SnS 2 /g-C 3 N 4 , [18] ZnIn 2 S 4 /g-C 3 N 4 , [19][20][21] MgIn 2 S 4 /g-C 3 N 4 , [22] CdIn 2 S 4 /g-C 3 N 4 , [23] CaIn 2 S 4 /g-C 3 N 4 , [24] have been developed. Notably, CuInS 2 with a band gap of 1.5 eV has driven more attention due to its excellent visible light response ability, suitable band gap, exceptional radiation hardness and environmentally nontoxicity.…”

Section: Introductionmentioning

confidence: 99%

Rational Construction of Z‐Scheme CuInS₂/Au/g‐C₃N₄ Heterostructure: Experimental Results and Theoretical Calculation

et al. 2019

ChemCatChem

View full text Add to dashboard Cite

Two dimensional (2D) heterojunction based on g-C 3 N 4 and CuInS 2 (CIS) nanosheets has been successfully constructed with the assistance of biomolecules L-cysteine. We demonstrated that a typical p-n junction charges transfer mode of CIS/PCN (protonated g-C 3 N 4 ) can be switched to Z-scheme transfer mode through the integration of Au by weakening the role of built-in electric field. The morphology of CIS/Au/PCN can be well adjusted through the formation of AuÀ S covalent bond and the electrostatic adsorption between Au and PCN during the hydrothermal process. Furthermore, the intimate interface contact inside CIS/Au/PCN heterojunction was indeed constructed, which may promote the charges separation and transfer process at the interface as evidenced by ESR spectra and time-resolved PL spectra. Under visible light illumination, the CIS/Au/PCN exhibited an enhanced CO (19.46 μmol/g) and CH 4 (1.18 μmol/g) yield in CO 2 reduction, which was about 5.04 times and 2.03 times higher than pure PCN. The composite heterojunction also showed excellent photocatalytic activity for tetracycline degradation with a 87 % degradation efficiency in 1 hour, which was 2.07 times higher than pure PCN. The experimental and theoretical calculation results demonstrated that an all-solid-state Z-scheme heterojunction was formed in the CIS/Au/PCN system, which was different from the typical pn junction charges transfer mechanism in CIS/PCN.

show abstract

Two-dimensional mesoporous g-C 3 N 4 nanosheet-supported MgIn 2 S 4 nanoplates as visible-light-active heterostructures for enhanced photocatalytic activity

Cited by 125 publications

References 55 publications

Synthesis of novel C-doped g-C₃N₄ nanosheets coupled with CdIn₂S₄ for enhanced photocatalytic hydrogen evolution

Synthesis of novel C-doped g-C₃N₄ nanosheets coupled with CdIn₂S₄ for enhanced photocatalytic hydrogen evolution

The Improvement of Photocatalysis H2 Evolution Over g-C3N4 With Na and Cyano-Group Co-modification

Rational Construction of Z‐Scheme CuInS₂/Au/g‐C₃N₄ Heterostructure: Experimental Results and Theoretical Calculation

Contact Info

Product

Resources

About

Two-dimensional mesoporous g-C 3 N 4 nanosheet-supported MgIn 2 S 4 nanoplates as visible-light-active heterostructures for enhanced photocatalytic activity

Cited by 125 publications

References 55 publications

Synthesis of novel C-doped g-C3N4 nanosheets coupled with CdIn2S4 for enhanced photocatalytic hydrogen evolution

Synthesis of novel C-doped g-C3N4 nanosheets coupled with CdIn2S4 for enhanced photocatalytic hydrogen evolution

The Improvement of Photocatalysis H2 Evolution Over g-C3N4 With Na and Cyano-Group Co-modification

Rational Construction of Z‐Scheme CuInS2/Au/g‐C3N4 Heterostructure: Experimental Results and Theoretical Calculation

Contact Info

Product

Resources

About

Synthesis of novel C-doped g-C₃N₄ nanosheets coupled with CdIn₂S₄ for enhanced photocatalytic hydrogen evolution

Synthesis of novel C-doped g-C₃N₄ nanosheets coupled with CdIn₂S₄ for enhanced photocatalytic hydrogen evolution

Rational Construction of Z‐Scheme CuInS₂/Au/g‐C₃N₄ Heterostructure: Experimental Results and Theoretical Calculation