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4 article(s) from Nguyen, Van-Huy

A TiO₂@MWCNTs nanocomposite photoanode for solar-driven water splitting

Anh Quynh Huu Le,
Ngoc Nhu Thi Nguyen,
Hai Duy Tran,
Van-Huy Nguyen and
Le-Hai Tran

Beilstein J. Nanotechnol. 2022, 13, 1520–1530, doi:10.3762/bjnano.13.125

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Figure 1: Schematic of the photoelectrochemical water splitting experimental apparatus.

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Figure 2: SEM images of (a) MWCNTs, (b) TiO₂, and (c) the TiO₂@MWCNTs nanocomposite.

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Figure 3: TEM images of (a) MWCNTs, (b) TiO₂, and (c) the TiO₂@MWCNTs nanocomposite.

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Figure 4: EDX spectra of MWCNTs and TiO₂@MWCNTs.

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Figure 5: Raman spectra of MWCNTs and TiO₂@MWCNTs.

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Figure 6: FTIR spectra of (a) MWCNTs, TiO₂, and TiO₂@MWCNTs, and (b) UV–vis DRS of TiO₂ and TiO₂@MWCNTs (Inse...

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Figure 7: XRD patterns of MWCNTs, TiO₂ and TiO₂@MWCNTs nanocomposite.

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Figure 8: (a) Cyclic voltammograms in 0.1 M KCl at 50 mV/s of scan rate, (b) Nyquist plots from EIS measureme...

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Figure 9: Effect of KOH concentration on (a) water splitting activation voltage and (b) rate of H₂ evolution ...

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Figure 10: (a) Voltammograms of the TiO₂ and the TiO₂@MWCNTs electrode under dark (D) and light (L) conditions...

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Full Research Paper

Published 14 Dec 2022

Full text

Recent trends in Bi-based nanomaterials: challenges, fabrication, enhancement techniques, and environmental applications

Vishal Dutta,
Ankush Chauhan,
Ritesh Verma,
C. Gopalkrishnan and
Van-Huy Nguyen

Beilstein J. Nanotechnol. 2022, 13, 1316–1336, doi:10.3762/bjnano.13.109

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Figure 1: Reported publications from 2011 to 2021 were searched on 6th June 2022 using the keyword “Bismuth-b...

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Figure 2: Bi-based photocatalysts exhibit substantial oxidative capabilities for various redox processes.

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Figure 3: (a) The hierarchical structures of BiOI, Bi₄O₅I₂, Bi₄O₅I₂–Bi₅O₇I composite, and Bi₅O₇I are shown in...

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Figure 4: (a) Crystal structure of self-doped Bi/BiOBr–Bi⁵⁺, (b) band structure, and (c) RhB degradation of B...

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Figure 5: (a) Band diagrams representing three different semiconductor heterojunctions, (b) band diagrams for...

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Figure 6: Different charge transfer Z-scheme types: (a) Mediator-free or direct, (b) solid mediator, and (c) ...

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Figure 7: Graphical representation of the proposed charge transfer mechanism of (a) the Bi/Bi₂MoO₆/TiO₂ nanoc...

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Review

Published 11 Nov 2022

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Solar-light-driven LaFe_xNi₁₋_xO₃ perovskite oxides for photocatalytic Fenton-like reaction to degrade organic pollutants

Chao-Wei Huang,
Shu-Yu Hsu,
Jun-Han Lin,
Yun Jhou,
Wei-Yu Chen,
Kun-Yi Andrew Lin,
Yu-Tang Lin and
Van-Huy Nguyen

Beilstein J. Nanotechnol. 2022, 13, 882–895, doi:10.3762/bjnano.13.79

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Figure 1: The characteristic XRD patterns of LaNiO₃ at different calcination temperatures.

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Figure 2: The characteristic XRD patterns of LaFeO₃ at different calcination temperatures.

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Figure 3: The characteristic XRD patterns of LaFe_xNi₁₋_xO₃.

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Figure 4: The crystal diameters of samples with various Fe/Ni doping ratios.

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Figure 5: (a) The DRS spectrum and (b) the pictures of samples with various Fe/Ni doping ratios.

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Figure 6: Specific surface area, pore size, and pore volume of the samples with different Fe/Ni ratios.

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Figure 7: The FESEM images of LaFe_xNi₁₋_xO₃ prepared at pH 0 (at the magnification of 100,000×).

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Figure 8: MB degradation experiments using various LaFe_xNi₁₋_xO₃ with different Fe/Ni ratios prepared at (a) p...

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Figure 9: Kinetic analysis of MB degradation experiments using various LaFe_xNi₁₋_xO₃ with different Fe/Ni rati...

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Figure 10: (a) The C/C₀ and (b) 1st order kinetic analysis of the MB photodegradation using LaFe_0.7Ni_0.3O₃ ope...

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Figure 11: (a) The C/C₀ and (b) 1st order kinetic analysis of the MB photodegradation using LaFe_0.7Ni_0.3O₃ ope...

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Figure 12: (a) The C/C₀ and (b) 1st order kinetic analysis of the photodegradation using LaFe_0.7Ni_0.3O₃ operat...

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Supp Info

Full Research Paper

Published 05 Sep 2022

Full text

Artificial sunlight and ultraviolet light induced photo-epoxidation of propylene over V-Ti/MCM-41 photocatalyst

Van-Huy Nguyen,
Shawn D. Lin,
Jeffrey Chi-Sheng Wu and
Hsunling Bai

Beilstein J. Nanotechnol. 2014, 5, 566–576, doi:10.3762/bjnano.5.67

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Figure 1: The spectrum of: (a) UV–vis absorption of V-Ti/MCM-41, and emission of (b) 200 W mercury arc lamp, ...

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Figure 2: The low-angle XRD pattern of V-Ti/MCM-41.

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Figure 3: The HRTEM images of V-Ti/MCM-41 photocatalyst.

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Figure 4: Summary of the V K-edge characterization of V-Ti/MCM-41 with references by XANES and proposed struc...

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Figure 5: Time course of the photo-epoxidation of propylene with molecular oxygen under UV–visible light irra...

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Figure 6: Time course of the photo-epoxidation of propylene with molecular oxygen under artificial sunlight (...

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Figure 7: The correlation between UV-light intensity (200 W mercury arc lamp) and C₃H₆ consumption rate and P...

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Figure 8: Time course of the photo-epoxidation of propylene with molecular oxygen under UV light for C₃H₆ con...

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Figure 9: The PO formation rate, C₃H₆ consumption rate and PO selectivity over V-Ti/MCM-41 versus the normali...

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Figure 10: The TGA weight loss curves V-Ti/MCM-41 photocatalyst using O₂ as the sweep gas: (a) fresh catalyst ...

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Full Research Paper

Published 05 May 2014

Full text

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A TiO2@MWCNTs nanocomposite photoanode for solar-driven water splitting

Recent trends in Bi-based nanomaterials: challenges, fabrication, enhancement techniques, and environmental applications

Solar-light-driven LaFexNi1−xO3 perovskite oxides for photocatalytic Fenton-like reaction to degrade organic pollutants

Artificial sunlight and ultraviolet light induced photo-epoxidation of propylene over V-Ti/MCM-41 photocatalyst

A TiO₂@MWCNTs nanocomposite photoanode for solar-driven water splitting

Solar-light-driven LaFe_xNi₁₋_xO₃ perovskite oxides for photocatalytic Fenton-like reaction to degrade organic pollutants