Experimental investigation into the π-conjugated HT-g-C3N4/MoS2 (X) evokes the electron transport in type-II heterojunction to achieve high photocatalytic antibiotic removal under visible-light irradiation

raj, Muniyandi Govinda; Vijayakumar, E.; Preetha, Rajaraman; Narendran, Moorthy Gnanasekar; Jennifer, G. Abigail; Varathan, Elumalai; Neppolian, Bernaurdshaw; Ganesh, Vatti Kondala; Bosco, A. John

doi:10.1016/j.seppur.2022.121028

Cited by 16 publications

(5 citation statements)

References 90 publications

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“…The rate constant (k) was derived using the first-order kinetics equation of the Langmuir-Hinshelwood mechanism illustrated in eqn (5). 56 ln In Fig. 8c, the fitting curve of CBZ degradation confirms the pseudo-first-order kinetics, with a good linear relationship, and the degradation performance is positively correlated with the degradation rate.…”

Section: Photocatalytic Degradation Analysissupporting

confidence: 54%

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Shining a light on fungicide- water: enhanced photocatalytic degradation using the CoTiO₃/CaTiO₃ nanocomposite and experimental and theoretical viewpoints on improved intervalence charge transfer from O²⁻ to Ti⁴⁺ and from Co²⁺ to Ti⁴⁺ ions and spatial charge transfer

Narendran,

Vijayakumar,

Govinda Raj

et al. 2024

New J. Chem.

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Section: Photocatalytic Degradation Analysissupporting

confidence: 54%

“…The rate constant ( k ) was derived using the first-order kinetics equation of the Langmuir–Hinshelwood mechanism illustrated in eqn (5). 56 …”

Section: Resultsmentioning

confidence: 99%

Shining a light on fungicide- water: enhanced photocatalytic degradation using the CoTiO₃/CaTiO₃ nanocomposite and experimental and theoretical viewpoints on improved intervalence charge transfer from O²⁻ to Ti⁴⁺ and from Co²⁺ to Ti⁴⁺ ions and spatial charge transfer

Narendran,

Vijayakumar,

Govinda Raj

et al. 2024

New J. Chem.

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“…Because the E CB of B-rGO was sufficiently negative for the O 2 / • O 2 – potential, electrons on the E CB of B-rGO can interact with disintegrated O 2 adsorbed on the catalyst’s surface to form an • O 2 – radical. Meanwhile, the holes on the E VB of B-rGO migrate to the E VB of SrFeO 3 , and then, the holes react with H 2 O to generate a hydroxy radical. − …”

Section: Resultsmentioning

confidence: 99%

“Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline”

et al. 2023

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The efficient use of visible light is necessary to take advantage of photocatalytic processes in both indoor and outdoor circumstances. Precisely manipulating the in situ growth method of heterojunctions is an effective way to promote photogenerated charge separation. Herein, the SrFeO 3 @B-rGO catalyst was prepared by an in situ growth method. At a loading of 10 wt % B-rGO, the nanocomposites revealed an excellent morphology and thermal, optical, electrochemical, and mechanical properties. X-ray diffraction analysis revealed the cubic spinel structure and a space group of Pm ̅ 3m for SrFeO 3 . High-resolution scanning electron microscopy and high-resolution transmission electron microscopy show the core−shell formation between SrFeO 3 and B-rGO. Furthermore, density functional theory of SrFeO 3 was performed to find its band structure and density of states. The SrFeO 3 @B-rGO nanocomposite shows the degradation rate of tetracycline (TC) reaching 92% in 75 min and the highest rate constant of 0.0211 min −1 . To improve the catalytic removal rate of antibiotics, the efficiency of e − and h + separation must be improved, as well as the generation of additional radicals. Radical trapping tests and the electron paramagnetic resonance method indicated that the combination of Fe 2+ and Fe 3+ in SrFeO 3 effectively separated e − and h + while also promoting the development of the superoxide anion ( • O 2 − ) to accelerate TC degradation. The entire TC degradation pathway using high-performance liquid chromatography and its mechanism were discussed. As a whole, this study delineates that photocatalysis is a viable strategy for the treatment of environmental antibiotic wastewater.

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“…A large amount of gC 3 N 4 was produced by the modified thermal oxidation method. Twenty-five grams of melamine was taken in a silica crucible and heated at 550 °C for 4 h. After treatment, the yellowish powder was ground in an agate mortar after being cooled at room temperature. , Then, the fine particles were washed three times with deionized water and ethanol. The obtained gC 3 N 4 was stored for further experiments.…”

Section: Methodsmentioning

confidence: 99%

Electrospun PAN/PEG Nanofibrous Membrane Embedded with a MgO/gC₃N₄ Nanocomposite for Effective Bone Regeneration

Danagody,

Bose,

Rajappan

et al. 2023

ACS Biomater. Sci. Eng.

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Developing biomaterial scaffolds using tissue engineering with physical and chemical surface modification processes can improve the bioactivity and biocompatibility of the materials. The appropriate substrate and site for cell attachment are crucial in cell behavior and biological activities. Therefore, the study aims to develop a conventional electrospun nanofibrous biomaterial using reproducible surface topography, which offers beneficial effects on the cell activities of bone cells. The bioactive MgO/gC 3 N 4 was incorporated on PAN/PEG and fabricated into a nanofibrous membrane using electrospinning. The nanocomposite uniformly distributed on the PAN/PEG nanofiber helps to increase the number of induced pores and reduce the hydrophobicity of PAN. The physiochemical characterization of prepared nanoparticles and nanofibers was carried out using FTIR, X-ray diffraction (XRD), thermogravimetry analysis (TGA), X-ray photoelectron spectroscopy (XPS), and water contact angle measurements. SEM and TEM analyses examined the nanofibrous morphology and the structure of MgO/gC 3 N 4 . In vitro studies such as on ALP activity demonstrated the membrane's ability to regenerate new bone and healing capacity. Furthermore, alizarin red staining showed the increasing ability of the cell−cell interaction and calcium content for tissue regeneration. The cytotoxicity of the prepared membrane was about 97.09% of live THP-1 cells on the surface of the MgO/gC 3 N 4 @PAN/PEG membrane evaluated using MTT dye staining. The soil burial degradation analysis exhibited that the maximum degradation occurs on the 45th day because of microbial activity. In vitro PBS degradation was observed on the 15th day after the bulk hydrolysis mechanism. Hence, on the basis of the study outcomes, we affirm that the MgO/gC 3 N 4 @PAN/PEG nanofibrous membrane can act as a potential bone regenerative substrate.

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Experimental investigation into the π-conjugated HT-g-C3N4/MoS2 (X) evokes the electron transport in type-II heterojunction to achieve high photocatalytic antibiotic removal under visible-light irradiation

Cited by 16 publications

References 90 publications

Shining a light on fungicide- water: enhanced photocatalytic degradation using the CoTiO₃/CaTiO₃ nanocomposite and experimental and theoretical viewpoints on improved intervalence charge transfer from O²⁻ to Ti⁴⁺ and from Co²⁺ to Ti⁴⁺ ions and spatial charge transfer

Shining a light on fungicide- water: enhanced photocatalytic degradation using the CoTiO₃/CaTiO₃ nanocomposite and experimental and theoretical viewpoints on improved intervalence charge transfer from O²⁻ to Ti⁴⁺ and from Co²⁺ to Ti⁴⁺ ions and spatial charge transfer

“Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline”

Electrospun PAN/PEG Nanofibrous Membrane Embedded with a MgO/gC₃N₄ Nanocomposite for Effective Bone Regeneration

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Experimental investigation into the π-conjugated HT-g-C3N4/MoS2 (X) evokes the electron transport in type-II heterojunction to achieve high photocatalytic antibiotic removal under visible-light irradiation

Cited by 16 publications

References 90 publications

Shining a light on fungicide- water: enhanced photocatalytic degradation using the CoTiO3/CaTiO3 nanocomposite and experimental and theoretical viewpoints on improved intervalence charge transfer from O2− to Ti4+ and from Co2+ to Ti4+ ions and spatial charge transfer

Shining a light on fungicide- water: enhanced photocatalytic degradation using the CoTiO3/CaTiO3 nanocomposite and experimental and theoretical viewpoints on improved intervalence charge transfer from O2− to Ti4+ and from Co2+ to Ti4+ ions and spatial charge transfer

“Quasi-In Situ Synthesis of Oxygen Vacancy-Enriched Strontium Iron Oxide Supported on Boron-Doped Reduced Graphene Oxide to Elevate the Photocatalytic Destruction of Tetracycline”

Electrospun PAN/PEG Nanofibrous Membrane Embedded with a MgO/gC3N4 Nanocomposite for Effective Bone Regeneration

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Product

Resources

About

Shining a light on fungicide- water: enhanced photocatalytic degradation using the CoTiO₃/CaTiO₃ nanocomposite and experimental and theoretical viewpoints on improved intervalence charge transfer from O²⁻ to Ti⁴⁺ and from Co²⁺ to Ti⁴⁺ ions and spatial charge transfer

Shining a light on fungicide- water: enhanced photocatalytic degradation using the CoTiO₃/CaTiO₃ nanocomposite and experimental and theoretical viewpoints on improved intervalence charge transfer from O²⁻ to Ti⁴⁺ and from Co²⁺ to Ti⁴⁺ ions and spatial charge transfer

Electrospun PAN/PEG Nanofibrous Membrane Embedded with a MgO/gC₃N₄ Nanocomposite for Effective Bone Regeneration