Phase engineering in graphitic carbon nitride with imidazolium sulfonic acid chloride ionic liquid functionalization for photocatalytic side-chain oxidation of toluene

Devi, Manisha; Chakraborty, Debarati; Barbhuiya, Monjur Hassan; Das, Bishal; Nath, S J Gokul; Dhar, Siddhartha Sankar

doi:10.1016/j.apcata.2022.118515

Cited by 11 publications

(9 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The successful synthesis of stacked GCN layers was indicated by sharp peaks at 707 and 745 cm −1 for striazine ring breath modes. 32 The oxygen-doped samples showed similar peaks, but the I 707 /I 745 intensity ratio decreased from 0.81 for GCN to 0.74 and 0.68 for OGCN-H and OGCN-M, indicating slight variations in chemical structures. The sharp peak at 1203 cm −1 was attributed to the bending vibration of sp 2 C, and the blueshift in OGCN-H and OGCN-M was attributed to exfoliation due to hydrothermal and microwave processes.…”

Section: Resultsmentioning

confidence: 90%

“…The stretching mode of the C–N heterocycle displayed a sharp peak in the 1210–1700 cm –1 range, and ring breath modes of the s -triazine motifs were observed at 805 cm –1 . Another small peak at 710 cm –1 was observed for out-of-plane bending of −NH 2 groups. , OGCN-M gives an IR spectrum akin to that of GCN with slight disparities. The s -triazine ring breath modes in OGCN-H and OGCN-M at 805 cm –1 weakened owing to the addition of O atoms replacing the secondary N atoms in the GCN framework.…”

Section: Resultsmentioning

confidence: 92%

“…Another small peak at 710 cm −1 was observed for out-of-plane bending of −NH 2 groups. 32,36 OGCN-M gives an IR spectrum akin to that of GCN with slight disparities. The s-triazine ring breath modes in OGCN-H and OGCN-M at 805 cm −1 weakened owing to the addition of O atoms replacing the secondary N atoms in the GCN framework.…”

Section: Resultsmentioning

confidence: 99%

“…The subtle structural and chemical deviations in GCN by oxygen doping were studied by Raman spectroscopy and are shown in Figure c. The successful synthesis of stacked GCN layers was indicated by sharp peaks at 707 and 745 cm –1 for s -triazine ring breath modes . The oxygen-doped samples showed similar peaks, but the I 707 / I 745 intensity ratio decreased from 0.81 for GCN to 0.74 and 0.68 for OGCN-H and OGCN-M, indicating slight variations in chemical structures.…”

Section: Resultsmentioning

confidence: 99%

“…Bulk graphitic carbon nitride (GCN) was synthesized by polycondensation of melamine as reported in the previous literature. 32 5 g of melamine was annealed at 550 °C in a half-closed crucible for 4 h. The yellow product obtained was finely ground using an agate mortar and further thermally exfoliated for 1 h at 500 °C.…”

Section: Methodsmentioning

confidence: 99%

See 4 more Smart Citations

Efficient Oxygen Doping of Graphitic Carbon Nitride by Green Microwave Irradiation for High-Performance Supercapacitor Electrode Material

et al. 2023

Self Cite

View full text Add to dashboard Cite

A highly efficient microwave irradiation method was employed for doping oxygen into the g-C3N4 framework using H2O2, which entailed 10 min compared to energy- and time-intensive calcination and hydrothermal methods. HR-XPS revealed that O doping preferentially occurred through replacement of two coordinated N atoms of the triazine units. The effects of the ensuing electronic structure modulation were investigated with electrochemical tests where the metal-free catalyst displayed a specific capacitance of 262.5 F/g at a 1 A/g current density and a satisfactory capacitance retention of 73.17% at 6 A/g after 2000 cycles, which is comparable to those of various metals containing g-C3N4-based catalysts. The designed asymmetric supercapacitor device revealed a specific energy of 36.45 Wh/kg at a specific power of 2.5 kW/kg. The microwave-irradiated O-doped g-C3N4 showed an 8-fold increase in specific capacitance compared with bulk g-C3N4 in both CV and GCD analyses. The improved surface structure and O content enhanced the electrode–electrolyte contact area, thus making ion transfer highly efficient for EDLCs. These results also opened the potential of microwave-synthesized O-doped g-C3N4 as a base material for designing binary and ternary electrode materials.

show abstract

Section: Resultsmentioning

confidence: 90%

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Efficient Oxygen Doping of Graphitic Carbon Nitride by Green Microwave Irradiation for High-Performance Supercapacitor Electrode Material

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

Poly(ionic liquid) composite oxygenated graphite carbon nitride for enhanced photocatalytic and synergistic bacteriostasis

Song,

Luan,

Sun

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

With the increase of drug‐resistant bacteria and the limitations of traditional antibacterial methods, photocatalytic inhibition has received widespread attention as a novel antibacterial method. In this paper, poly(1‐vinyl‐3‐ethylimidazolium tetrafluoroborate) composite oxygenated carbon nitride (PBF‐OCN) were prepared by in situ free radical polymerization using 1‐vinyl‐3‐ethylimidazolium tetrafluoroborate and OCN. The results showed that the light absorption ability and electron hole separation rate of PBF‐OCN were greatly improved compared with that of OCN, and the rate constant for photocatalytic removal MB of PBF‐OCN‐1 was about 1.39 times of that OCN. The growth of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) could be significantly inhibited by PBF‐OCN under visible light, among which, the inhibition of PBF‐OCN‐3 was the most excellent, with the diameter of the circle of inhibition reaching 20.69 mm for E. coli, and 21.30 mm for S. aureus, and the inhibition rate against E. coli calculated by plate counting method reached 97.0%. The minimum inhibitory concentration for E. coli and S. aureus was 0.0625 mg/mL, respectively, and the possible inhibition mechanism of the samples was explored. The good synergistic antibacterial effect of PBF‐OCN is expected to be applied in water treatment, antibacterial devices, packaging materials, and other fields.

show abstract

Core-shell assembly of ZrO2 nanoparticles with ionic liquid: a novel and highly efficient heterogeneous catalysts for Biginelli and esterification reactions

Chakraborty

Devi

Das

et al. 2022

Environ Sci Pollut Res

View full text Add to dashboard Cite

Phase engineering in graphitic carbon nitride with imidazolium sulfonic acid chloride ionic liquid functionalization for photocatalytic side-chain oxidation of toluene

Cited by 11 publications

References 68 publications

Efficient Oxygen Doping of Graphitic Carbon Nitride by Green Microwave Irradiation for High-Performance Supercapacitor Electrode Material

Efficient Oxygen Doping of Graphitic Carbon Nitride by Green Microwave Irradiation for High-Performance Supercapacitor Electrode Material

Poly(ionic liquid) composite oxygenated graphite carbon nitride for enhanced photocatalytic and synergistic bacteriostasis

Core-shell assembly of ZrO2 nanoparticles with ionic liquid: a novel and highly efficient heterogeneous catalysts for Biginelli and esterification reactions

Contact Info

Product

Resources

About