Dramatic coupling of visible light with ozone on honeycomb-like porous g-C 3 N 4 towards superior oxidation of water pollutants

Xiao, Jiadong; Xie, Yongbing; Nawaz, Faheem; Wang, Yuxian; Du, Penghui

doi:10.1016/j.apcatb.2015.11.010

Cited by 171 publications

(63 citation statements)

References 43 publications

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“…The C 1 s spectrum (Fig. 5b) has four distinct peaks centered at 284.6, 286.4, 288.1 and 293.2 eV, which are assigned to the adventitious carbon (C C), the sp 3 -hybridized carbon (C-(N) 3 ), the sp 2 -hybridized carbon (N C N) [29] and -*. The N 1s spectrum (Fig.…”

Section: Physicochemical Propertymentioning

confidence: 99%

Peroxymonosulfate enhanced visible light photocatalytic degradation bisphenol A by single-atom dispersed Ag mesoporous g-C3N4 hybrid

Wang

Zhao

Cao

et al. 2017

Applied Catalysis B: Environmental

521

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Section: Physicochemical Propertymentioning

confidence: 99%

Peroxymonosulfate enhanced visible light photocatalytic degradation bisphenol A by single-atom dispersed Ag mesoporous g-C3N4 hybrid

Wang

Zhao

Cao

et al. 2017

Applied Catalysis B: Environmental

521

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“…The enhanced photocatalytic activities are likely related to the increased optical absorption, reduced bandgap, enlarged specific surface area, and increased donor density after hydrogenation. Thus different from the views from the optical, electronic, and surface area in previous studies, increasing donor density in this study may provide one more consideration to improve the photocatalytic performance of g‐C 3 N 4 .…”

Section: Introductionmentioning

confidence: 73%

“…However, its photocatalysis efficiency is limited by its large interlayer resistance and fast charge recombination . In order to enhance its photocatalytic performance, various modification strategies have been explored, such as morphology control, doping, and composites . For example, monolayer g‐C 3 N 4 2D nanosheets exhibited enhanced photocatalytic degradation of RhB and oxidation of benzyl alcohol .…”

Section: Introductionmentioning

confidence: 99%

The Effects of Hydrogenation on Graphitic C₃N₄ Nanosheets for Enhanced Photocatalytic Activity

Zhou

Hou

Chen

2017

Part & Part Syst Charact

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Graphitic carbon nitride (g‐C3N4) has recently been studied as a promising metal‐free catalyst for photocatalytic hydrogen generation and environmental pollution removal. However, its photocatalytic activities are far from satisfactory, partially due to unsatisfied optical absorption and poor charge separation. Hydrogenation has recently been proven as an efficient approach in enhancing the optical absorption and improving the charge separation in oxide photocatalysts. In this study, the effects of hydrogenation on nonoxide g‐C3N4 nanosheets have been elucidated for photocatalytic applications. Hydrogenation introduces structural defects, leads to disaggregation and fragmentation, and increases the specific surface area. And it increases and redshifts the optical absorption, narrows the bandgap, and increases the donor density. The photocatalytic activities are remarkably enhanced for hydrogen production from water by 45% and pollutant removal by 650% under stimulated sunlight irradiation. The enhanced photocatalytic activity is due to the synergistic effects brought by hydrogenation: the increased optical absorption, reduced bandgap, enlarged specific surface area, and increased donor density. Thus, this study shows that hydrogenation can have a wide range of effects on the structural, optical, electronic, and photocatalytic properties of g‐C3N4, providing a facile approach to modify properties and performances of nonoxide photocatalysts.

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“…Hysteresis loops were observed in all specimens at higher relative pressure. The nitrogen uptakes at lower relative pressures were fairly less, implying that enormous mesoporous structures presented on the catalyst surface [29]. The pure CNNS had a large BET surface area of 109 m 2 /g and large average pore size of 19 nm (Table 1).…”

Section: Characterization Analysismentioning

confidence: 99%

Co3O4/g-C3N4 Hybrids for Gas-Phase Hg0 Removal at Low Temperature

Zhang

Liu

2019

Processes

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The Co3O4/g-C3N4 hybrids are constructed via the incipient wetness impregnation method by depositing Co3O4 onto the exterior of g-C3N4, and then employed for Hg0 capture within 60–240 °C. The results show that the Co3O4/g-C3N4 hybrid with a Co3O4 content of 12 wt% performs optimally with the highest Hg0 removal efficiency of ~100% at or above 120 °C. The high performances of the Co3O4/g-C3N4 hybrids are probably attributed to the tight interfacial contact between Co3O4 and g-C3N4, with its improved electron transfer, inferring that cobalt oxide and g-C3N4 display a cooperative effect towards Hg0 removal. NO and SO2 shows a significant suppressive influence on the mercury capture performance, plausibly owing to the competing adsorption and side reactions.

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Dramatic coupling of visible light with ozone on honeycomb-like porous g-C 3 N 4 towards superior oxidation of water pollutants

Cited by 171 publications

References 43 publications

Peroxymonosulfate enhanced visible light photocatalytic degradation bisphenol A by single-atom dispersed Ag mesoporous g-C3N4 hybrid

Peroxymonosulfate enhanced visible light photocatalytic degradation bisphenol A by single-atom dispersed Ag mesoporous g-C3N4 hybrid

The Effects of Hydrogenation on Graphitic C₃N₄ Nanosheets for Enhanced Photocatalytic Activity

Co3O4/g-C3N4 Hybrids for Gas-Phase Hg0 Removal at Low Temperature

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Dramatic coupling of visible light with ozone on honeycomb-like porous g-C 3 N 4 towards superior oxidation of water pollutants

Cited by 171 publications

References 43 publications

Peroxymonosulfate enhanced visible light photocatalytic degradation bisphenol A by single-atom dispersed Ag mesoporous g-C3N4 hybrid

Peroxymonosulfate enhanced visible light photocatalytic degradation bisphenol A by single-atom dispersed Ag mesoporous g-C3N4 hybrid

The Effects of Hydrogenation on Graphitic C3N4 Nanosheets for Enhanced Photocatalytic Activity

Co3O4/g-C3N4 Hybrids for Gas-Phase Hg0 Removal at Low Temperature

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The Effects of Hydrogenation on Graphitic C₃N₄ Nanosheets for Enhanced Photocatalytic Activity