A new visible light active multifunctional ternary composite based on TiO2–In2O3 nanocrystals heterojunction decorated porous graphitic carbon nitride for photocatalytic treatment of hazardous pollutant and H2 evolution

Jiang, Zhifeng; Jiang, Deli; Yan, Zaoxue; Liu, Dong; Qian, Kun; Xie, Jimin

doi:10.1016/j.apcatb.2015.01.041

Cited by 172 publications

(55 citation statements)

References 84 publications

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“…In order to further investigate the primary active species involved in the process and possible photodegradation mechanism, the effects of scavengers on the degradation of RhB, MB over g-C 3 N 4 /CuS-2 was examined. Ethylenediaminetetraacetic acid disodium salt (EDTA2Na), benzoquinone (BQ) and tert-butyl alcohol (TBA) used as the scavenger of hole (h + ), superoxide radical ( Å O 2À ) and hydroxyl radical ( Å OH), respectively [36][37][38]. As shown in Fig.…”

Section: Possible Photocatalytic Mechanism Of G-c 3 N 4 /Cus Nanocompmentioning

confidence: 99%

Facile fabrication of novel porous graphitic carbon nitride/copper sulfide nanocomposites with enhanced visible light driven photocatalytic performance

Chen

et al. 2016

Journal of Colloid and Interface Science

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In this work, a novel organic-inorganic heterostructured photocatalyst: porous graphitic carbon nitride (g-C3N4) hybrid with copper sulfide (CuS) had been synthesized via a precipitation-deposition method at low temperature for the first time. UV-vis spectroscopy revealed the porous g-C3N4/CuS nanocomposites showed a strong and broad visible light absorption. Furthermore, the g-C3N4/CuS nanocomposites showed higher photocatalytic activity in the photodegradation of various organic dyes than that of pure g-C3N4 and CuS, and the selected sample of g-C3N4/CuS-2 exhibited the best photocatalytic activity under visible light. The good photocatalytic activity could be ascribed to the matching of the g-C3N4 and CuS band gap energies. Besides, photoluminescent spectra and photoelectrochemical measurements also proved that the CuS/g-C3N4 could greatly enhance the charge generation and suppress the charge recombination of photogenerated carriers. According to the experimental result, a possible photocatalytic mechanism has been proposed. Due to the high stability, the porous g-C3N4/CuS could be applied in the field of environmental remediation. Our work highlights that coupling semiconductors with well-matched band energies provides a facile way to improve the photocatalytic activity.

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Section: Possible Photocatalytic Mechanism Of G-c 3 N 4 /Cus Nanocompmentioning

confidence: 99%

Facile fabrication of novel porous graphitic carbon nitride/copper sulfide nanocomposites with enhanced visible light driven photocatalytic performance

Chen

et al. 2016

Journal of Colloid and Interface Science

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“…The higher PL intensity might indicate a higher recombination rate of photo-generated electrons and holes [45]. As we can see, when excited by 320 nm, three strong broad emission peaks at around 417 nm, 470 nm and 554 nm are observed for Bi 2 MoO 6 .…”

Section: Raman Analysis and Photoluminescence Spectroscopy Of γ-Bi 2 mentioning

confidence: 91%

Transforming MoO3 macrorods into bismuth molybdate nanoplates via the surfactant-assisted hydrothermal method

Wei

Gao

Jiang

et al. 2015

Ceramics International

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“…4D). Another peak at 284.7 eV was corresponding to surface carbon [9]. The C1s peak of In 2 O 3 / C 3 N 4 (17.3%) composite showed a slight shift compared with pure C 3 N 4 , which was attributed to the interaction between In 2 O 3 and C 3 N 4 .…”

Section: Tem and Eds Analysesmentioning

confidence: 93%

“…The obtained composites showed better performance than individual In 2 O 3 and C 3 N 4 . These catalysts were mostly prepared by complicated method in liquid phase [9] and the solid phase synthesis was rarely reported. In this work, a solid phase synthesis of In 2 O 3 /C 3 N 4 hybrid photocatalysts by ball-milling calcination was presented.…”

Section: Introductionmentioning

confidence: 99%

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Ball-milling combined calcination synthesis of In2O3/C3N4 for high photocatalytic activity under visible light irradiation

Zhang

Huang

et al. 2017

J Mater Sci: Mater Electron

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important practical value to prepare photocatalytic materials with high activity under visible light.Indium oxide (In 2 O 3 ), a n-type semiconductor material, has a direct band gap of 3.8 eV and an indirect band gap of 2.8 eV [2]. It is an effective sensitizer and its absorption spectrum can extend from ultraviolet region to the visible region. It has been widely used in solar cells [3], flat panel display [4], gas sensor [5]. However, due to the high electron-hole recombination rate, the efficiency of In 2 O 3 is still limited. In order to improve the photocatalytic activity of In 2 O 3 , researchers have used a variety of methods, such as morphology control [6,7], metal deposition [8], and combining with semiconductors [9][10][11].Graphitic carbon nitride (denoted as C 3 N 4 ) is a kind of medium band gap (2.7 eV) nonmetal photocatalyst [12]. It has good chemical stability and thermal stability. Furthermore, it can be used to split water into H 2 and O 2 and degrade organic pollutants under visible light irradiation [13]. But high photoproduction electron-hole recombination rate seriously affects the catalytic properties of C 3 N 4 . C 3 N 4 can be easily adhered on the surface of other compounds due to its softness. Deferent types of strategies have been used to make the catalytic properties of C 3 N 4 better, including coupling with metals [14][15][16] [29]. Compared with the original semiconductor materials, the photocatalytic performance of these composites were enhanced obviously. Through mechanism analyzing, the reason for photocatalytic performance enhancements may be the improvement of electron-hole migration and separation.Recently, some investigations about In 2 O 3 /C 3 N 4 were reported. In 2 O 3 /C 3 N 4 composites can be used for hydrogen evolution

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A new visible light active multifunctional ternary composite based on TiO2–In2O3 nanocrystals heterojunction decorated porous graphitic carbon nitride for photocatalytic treatment of hazardous pollutant and H2 evolution

Cited by 172 publications

References 84 publications

Facile fabrication of novel porous graphitic carbon nitride/copper sulfide nanocomposites with enhanced visible light driven photocatalytic performance

Facile fabrication of novel porous graphitic carbon nitride/copper sulfide nanocomposites with enhanced visible light driven photocatalytic performance

Transforming MoO3 macrorods into bismuth molybdate nanoplates via the surfactant-assisted hydrothermal method

Ball-milling combined calcination synthesis of In2O3/C3N4 for high photocatalytic activity under visible light irradiation

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