Self-doped Ti3+ mediated TiO2/In2O3/SWCNTs heterojunction composite under acidic/basic heat medium for boosting visible light induced H2 evolution

Umer, Muhammad; Tahir, Muhammad Nawaz; Azam, Muhammad Usman; Tahir, Beenish; Musaab, None Mohammad

doi:10.1016/j.ijhydene.2019.04.020

Cited by 19 publications

(4 citation statements)

References 50 publications

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“…Figure 5b shows remarkable changes from the raw sample, indicating that acid/base treatment is sufficient 35,36 . Because the absence of black and gray points and the reduction of impurities on the surface of nanotube packages confirms this 37,38 . In addition, the images prove that the opacity of Au nanoparticles is due to their high electron density.…”

Section: Resultsmentioning

confidence: 70%

“…35,36 Because the absence of black and gray points and the reduction of impurities on the surface of nanotube packages confirms this. 37,38 In addition, the images prove that the opacity of Au nanoparticles is due to their high electron density. Note that increasing the BSA-FA loading would let the nanoparticles tend to aggregate into larger particles.…”

Section: Morphological Analysis Via Temmentioning

confidence: 85%

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The role of single‐walled carbon nanotubes functionalized with gold to increase radiosensitivity of cancer cells to X‐ray radiation

Aghaei,

Shaterian,

Danafar

et al. 2023

Applied Organom Chemis

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The improvement of high‐Z‐based metallic nanostructures as radiosensitizers with high monolithicity and versatility by superadditive therapeutic track and the good protective effect is considerable, but they are limited by some problems such as nonideal selectivity for the target tissue. In this study, nanosystems were developed to enhance the efficacy of radiotherapy and reduce cancer cell survival based on innovative gold (Au) functionalized oxygen‐single‐walled carbon nanotubes (O‐SWCNTs). We illustrate the use of folic acid (FA) as a targeting agent and bovine serum albumin (BSA) to stabilize the physiological environment and increase durability. The physical and chemical properties of the nanosystems were evaluated using transmission electron microscopy (TEM), selected area electron diffraction (SAED), dynamic light scattering (DLS), zeta potential, X‐ray diffraction (XRD), ultraviolet–visible (UV–Visible), and Fourier transform infrared (FTIR) techniques. Finally, the MTT assay was used to investigate the therapeutic effects of nanoparticles in the 4 T1 mouse breast cancer model in the presence and absence of X‐rays. So, the cancer cells experienced a more effective reduction in survival after receiving O‐SWCNTs‐Au‐BSA‐FA + 8 Gy than O‐SWCNTs‐BSA, Au‐BSA‐FA, and O‐SWCNTs‐Au‐BSA + 8 Gy groups.

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Section: Resultsmentioning

confidence: 70%

Section: Morphological Analysis Via Temmentioning

confidence: 85%

The role of single‐walled carbon nanotubes functionalized with gold to increase radiosensitivity of cancer cells to X‐ray radiation

Aghaei,

Shaterian,

Danafar

et al. 2023

Applied Organom Chemis

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“…As thus, most studies focus on the further modifications of the faceted TiO 2 to enhance the visible light absorption and promote photo-generated charge separation. One useful way is the introduction of oxygen vacancies and the corresponding Ti 3+ ions into TiO 2 [13][14][15]. As reported, the remarkably enhanced and selective photoreduction of CO 2 could be obtained on an oxygen-deficient TiO 2 with co-exposed {101} and {001} facets [16].…”

Section: Introductionmentioning

confidence: 91%

Ti3+ Defective SnS2/TiO2 Heterojunction Photocatalyst for Visible-Light Driven Reduction of CO2 to CO with High Selectivity

et al. 2019

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In recent years, defective TiO2-based composite nanomaterials have received much attention in the field of photocatalysis. In this work, TiB2 was used as a precursor to successfully prepare Ti3+ defective TiO2 (TiO2-B) with a truncated bipyramidal structure by a one-step method. Then, the SnS2 nanosheets were assembled onto the as-prepared TiO2-B through simple hydrothermal reaction. TiO2-B exhibits strong visible light absorption properties, but the recombination rate of the photo-generated electron-hole pair was high and does not exhibit ideal photocatalytic performance. Upon introducing SnS2, the heterojunction catalyst SnS2-Ti3+ defective TiO2 (SnS2/TiO2-B) not only possesses the strong light absorption from UV to visible light region, the lowest photo-generated charge recombination rate but also achieves a more negative conduction band potential than the reduction potential of CO2 to CO, and thereby, exhibits the significantly enhanced selectivity and yield of CO in photocatalytic CO2 reduction. Notably, SnS2/TiO2-B produces CO at a rate of 58 µmol·h−1·g−1 with CO selectivity of 96.3% under visible light irradiation, which is 2 and 19 times greater than those of alone TiO2-B and SnS2, respectively. Finally, a plausible photocatalytic mechanism on SnS2/TiO2-B was proposed that the electron transfer between TiO2 and SnS2 follows the Z-scheme mode. Our results present an effective way to gain highly efficient TiO2 based photocatalysts for CO2 reduction by combining different modification methods of TiO2 and make full use of the synergistic effects.

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“…4 Also, among metals, indium and copper are considered to be good candidates in the design of robust photocatalysts due to their vacant d-orbitals, which play a critical role in reducing exciton recombination. 5,6 In addition, ternary QDs exhibit superior optical properties upon not only changing their size but also the molar ratio of their constitutional elements, particularly for the photocatalytic water-splitting reaction. 7 Furthermore, CIS QDs are eye-catching semiconductor photocatalysts for H 2 evolution owing to their narrow bandgap energy (E g = 1.5-1.7 eV), meaning that they effectively absorb the majority of solar light.…”

Section: Introductionmentioning

confidence: 99%

CIS QDs nucleated on oxygen vacancy rich BOI microplates: a hybrid photocatalyst with enhanced green energy production via mediator free Z-scheme dynamics

2022

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Self-doped Ti3+ mediated TiO2/In2O3/SWCNTs heterojunction composite under acidic/basic heat medium for boosting visible light induced H2 evolution

Cited by 19 publications

References 50 publications

The role of single‐walled carbon nanotubes functionalized with gold to increase radiosensitivity of cancer cells to X‐ray radiation

The role of single‐walled carbon nanotubes functionalized with gold to increase radiosensitivity of cancer cells to X‐ray radiation

Ti3+ Defective SnS2/TiO2 Heterojunction Photocatalyst for Visible-Light Driven Reduction of CO2 to CO with High Selectivity

CIS QDs nucleated on oxygen vacancy rich BOI microplates: a hybrid photocatalyst with enhanced green energy production via mediator free Z-scheme dynamics

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