Proceeding of catalytic water splitting on Cu/Ce@g-C<sub>3</sub>N<sub>4</sub> photocatalysts: an exceptional approach for sunlight-driven hydrogen generation

Abid, Muhammad Zeeshan; Tanveer, Aysha; Rafiq, Khezina; Rauf, Abdul; Jin, Rongchao; Hussain, Ejaz

doi:10.1039/d4nr00111g

Cited by 7 publications

(4 citation statements)

References 93 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The peak positions of rutile TiO 2 were observed at 27.435, 36.079, 39.189, 41.238, 44.042, 54.319, 56.624, 62.757, 64.045, 65.508, 69.002, 69.800, 72.416, 74.398, and 76.536° conforming to crystalline planes at (110), (101), (200), (111), (210), (211), (220), (002), (310), (221), (301), (112), (311), (320), and (202), respectively. 2D hexagonal g-C 3 N 4 crystals exhibited diffraction peaks specifically at 13.2 and 27° analogous to the (100) and (002) crystalline phases, respectively . These findings aligned with JCPDS number PDF# 871526.…”

Section: Results and Discussionsupporting

confidence: 74%

Sensitization of TiO₂/g-C₃N₄ Heterostructures via Pd–Au Cocatalysts: A Rational Design of Water Splitting System for Green Fuel Production

Sahar,

Rafiq,

Abid

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

The ecological impact and rising expenses of fossil fuels have led researchers to investigate alternative renewableenergy sources. Current work reported a novel and sustainable water splitting system comprising TiO 2 /Pd/Au integrated on g-C 3 N 4 surfaces. The phase purity and crystallization were analyzed by XRD, revealing characteristic patterns of TiO 2 , g-C 3 N 4 , and loaded Pd−Au cocatalysts. The electronic and structural properties were analyzed by Raman spectroscopy. The efficient charge separation in Pd/Au@g-C 3 N 4 /TiO 2 was demonstrated by PL spectral and TRPL analyses. Interface analysis, charge transfer resistance/capacitance, and dynamics were evaluated by EIS and temporal photocurrent responses. FTIR spectra indicate the interfacial connection between g-C 3 N 4 /TiO 2 , while UV−vis/DRS revealed that Pd/Au@g-C 3 N 4 /TiO 2 exhibited superior optical absorption (absorption edge at 457 nm). The BET technique confirmed the mesoporous nature of Pd/Au@g-C 3 N 4 /TiO 2 , while SEM demonstrated its lumpy surface morphology with high dispersion of cocatalysts. The elemental compositions and electronic states were further confirmed by EDX and XPS. Hydrogen evolution activities were conducted in the sunlight using a GC equipped with TCD. Activities indicated an encouraging rate of H 2 generation on fabricated g-C 3 N 4 /TiO 2 heterojunctions (Z-scheme interaction) having a Au-LSPR effect along with a Pd Schottky barrier impact. The maximum H 2 evolution rate of 36.51 mmol g −1 h −1

show abstract

Section: Results and Discussionsupporting

confidence: 74%

Sensitization of TiO₂/g-C₃N₄ Heterostructures via Pd–Au Cocatalysts: A Rational Design of Water Splitting System for Green Fuel Production

Sahar,

Rafiq,

Abid

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…(sp 2 ) bending vibrations, respectively [90][91][92]. All these structural features of CNU and CNTU are in agreement with the results of ATR-FTIR spectroscopy.…”

Section: Materials Characterizationsupporting

confidence: 88%

“…Specifically, the most intense peak at ~473 cm −1 is assigned to the in-plane (twisting) vibrations of the tris-s-triazine heterocycles, while the peaks centered at ~709 cm −1 and ~983 cm −1 are ascribed to the two different breathing modes of the s-triazine rings [ 90 ]. Additionally, the peaks located at ~752 cm −1 and ~1248 cm −1 are related to layer-to-layer (deformation) vibrations of C-N heterocycles and the =C (sp 2 ) bending vibrations, respectively [ 90 , 91 , 92 ]. All these structural features of CNU and CNTU are in agreement with the results of ATR-FTIR spectroscopy.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Characterization of Composite WO3 Fibers/g-C3N4 Photocatalysts for the Removal of the Insecticide Clothianidin in Aquatic Media

Lykos,

Bairamis,

Efthymiou

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

Photocatalysis is a prominent alternative wastewater treatment technique that has the potential to completely degrade pesticides as well as other persistent organic pollutants, leading to detoxification of wastewater and thus paving the way for its efficient reuse. In addition to the more conventional photocatalysts (e.g., TiO2, ZnO, etc.) that utilize only UV light for activation, the interest of the scientific community has recently focused on the development and application of visible light-activated photocatalysts like g-C3N4. However, some disadvantages of g-C3N4, such as the high recombination rate of photogenerated charges, limit its utility. In this light, the present study focuses on the synthesis of WO3 fibers/g-C3N4 Z-scheme heterojunctions to improve the efficiency of g-C3N4 towards the photocatalytic removal of the widely used insecticide clothianidin. The effect of two different g-C3N4 precursors (urea and thiourea) and of WO3 fiber content on the properties of the synthesized composite materials was also investigated. All aforementioned materials were characterized by a number of techniques (XRD, SEM-EDS, ATR-FTIR, Raman spectroscopy, DRS, etc.). According to the results, mixing 6.5% W/W WO3 fibers with either urea or thiourea derived g-C3N4 significantly increased the photocatalytic activity of the resulting composites compared to the precursor materials. In order to further elucidate the effect of the most efficient composite photocatalyst in the degradation of clothianidin, the generated transformation products were tentatively identified through UHPLC tandem high-resolution mass spectroscopy. Finally, the detoxification effect of the most efficient process was also assessed by combining the results of an in-vitro methodology and the predictions of two in-silico tools.

show abstract

“…The electron impedance spectroscopic analyses of Pd–SrO@TiO 2 /gCN, Pd@TiO 2 /gCN, TiO 2 /gCN and gCN provide insights on their surface properties, electrolytic interaction and electrochemical behaviour, 56 as indicated in Fig. 2(c).…”

Section: Resultsmentioning

confidence: 99%

Promoting water-splitting reaction on TiO₂/gCN with Pd/SrO cocatalysts: H₂ evolution in the absence of a sacrificial reagent

Rafiq,

Sahar,

Abid

et al. 2024

Energy Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

Proceeding of catalytic water splitting on Cu/Ce@g-C₃N₄ photocatalysts: an exceptional approach for sunlight-driven hydrogen generation

Abstract: Increasing energy demands and environmental problems require carbon free and renewable energy generation systems. For the purpose, we have synthesized efficient photocatalysts (i.e., g–C3N4, Cu@g–C3N4, Ce@g–C3N4 and Cu/Ce@g–C3N4) for H2...

Cited by 7 publications

References 93 publications

Sensitization of TiO₂/g-C₃N₄ Heterostructures via Pd–Au Cocatalysts: A Rational Design of Water Splitting System for Green Fuel Production

Sensitization of TiO₂/g-C₃N₄ Heterostructures via Pd–Au Cocatalysts: A Rational Design of Water Splitting System for Green Fuel Production

Synthesis and Characterization of Composite WO3 Fibers/g-C3N4 Photocatalysts for the Removal of the Insecticide Clothianidin in Aquatic Media

Promoting water-splitting reaction on TiO₂/gCN with Pd/SrO cocatalysts: H₂ evolution in the absence of a sacrificial reagent

Contact Info

Product

Resources

About

Proceeding of catalytic water splitting on Cu/Ce@g-C3N4 photocatalysts: an exceptional approach for sunlight-driven hydrogen generation

Abstract: Increasing energy demands and environmental problems require carbon free and renewable energy generation systems. For the purpose, we have synthesized efficient photocatalysts (i.e., g–C3N4, Cu@g–C3N4, Ce@g–C3N4 and Cu/Ce@g–C3N4) for H2...

Cited by 7 publications

References 93 publications

Sensitization of TiO2/g-C3N4 Heterostructures via Pd–Au Cocatalysts: A Rational Design of Water Splitting System for Green Fuel Production

Sensitization of TiO2/g-C3N4 Heterostructures via Pd–Au Cocatalysts: A Rational Design of Water Splitting System for Green Fuel Production

Synthesis and Characterization of Composite WO3 Fibers/g-C3N4 Photocatalysts for the Removal of the Insecticide Clothianidin in Aquatic Media

Promoting water-splitting reaction on TiO2/gCN with Pd/SrO cocatalysts: H2 evolution in the absence of a sacrificial reagent

Contact Info

Product

Resources

About

Proceeding of catalytic water splitting on Cu/Ce@g-C₃N₄ photocatalysts: an exceptional approach for sunlight-driven hydrogen generation

Sensitization of TiO₂/g-C₃N₄ Heterostructures via Pd–Au Cocatalysts: A Rational Design of Water Splitting System for Green Fuel Production

Sensitization of TiO₂/g-C₃N₄ Heterostructures via Pd–Au Cocatalysts: A Rational Design of Water Splitting System for Green Fuel Production

Promoting water-splitting reaction on TiO₂/gCN with Pd/SrO cocatalysts: H₂ evolution in the absence of a sacrificial reagent