Anh Quang Dao

Duy Tan University · Institute of Research and Development

Long-term reliance on fossil fuels is causing the energy crisis and environmental problems to worsen. As a result, it is anticipated that innovative energy-conversion technologies with great energy densities and environmental friendliness will offer trustworthy substitutes for conventional fossil-based energy systems. Nevertheless, since expensive...

Multi-wall carbon nanotube poly L-Lysine (MWCNTs-PLL) material was effectively synthesized in this study. UV-Vis spectrum and Fourier transform infrared spectroscopy were used to determine the structure of nanoparticles. The electrochemical characteristics of glassy carbon electrodes (GCE) were examined after the MWCNTs-PLL material with nanosized...

Venlafaxine (denoted as VFX), a member of the most extensively prescribed antidepressants, is used to handle major depressive disorder, panic disorder and anxiety. This medication affects brain chemistry, which could cause an imbalance in depressed people. VFX and its metabolites, on the other hand, are pollutants in the water environment. Through...

Pb [(Zr0.48Ti0.52)0.8(Zn1/3Nb2/3)0.125(Mn1/3Nb2/3)0.075]O3 + 0.07 wt.% Li2CO3 + x wt.% Fe2O3 ceramics (PZT-PZN-PMnN; x = 0–0.35) were prepared following the B-site oxide mixing method. Results obtained using the Rietveld refinement, and Raman spectroscopy techniques revealed that all ceramic samples possessed a single perovskite phase and exhibited...

Antibiotics might build up into the human body by foodstuff metabolism, posing a serious threat to human health and safety. Establishing simple and sensitive technology for quick antibiotic evaluation is thus extremely important. Nanomaterials (or NMTs) with the advantage of possessing merits such as remarkable optical, thermal, mechanical, and ele...

This chapter presents the use and characterization of natural gums as reducing and stabilizing agents for the biosynthesis of copper nanoparticles. Natural gums are hydrocolloids, which are outstanding representative eco-friendly, green biopolymers, and their derivatives have been used to synthesize many nanomaterials for a variety of applications....

In this work, the gold nanorods (GNR) material were successfully synthesized and stabilized by cetyltrimethylammonium bromide (GNR-CTAB) and poly(sodium-4-styrenesulfonate) (GNR-PSS). The result shows that the effect of stabilizers CTAB and PSS are quite uniform. The GNR-PSS solution revealed great stability after 168 h of continuous shaking. The s...

BaTiO 3 nanoparticles were synthesized by hydrothermal method using amorphous phase TiO 2 precursor as the Ti-source. The microstructure and phase structure were determined using XRD, SEM and Raman spectroscopy analysis results. The results showed that BaTiO 3 nanoparticles have tetragonal structure, average size of about 100 nm was obtained at Ba/...

In the present study, BaTiO 3 nanospheres with a uniform particle size of around 100 nm were prepared by a hydrothermal route using Ba(OH) 2 .8H 2 O and TiO 2 nanoparticles. Experimental results revealed that the main influencing factors for the formation of BaTiO 3 nanospheres were molar Ba/Ti ratio ( R Ba/Ti ), hydrothermal temperature, and time....

In this work, the synthesis of cobalt Schiff base complex embedded SBA-15 and simultaneous determination of ascorbic acid (ASA), paracetamol (PAR), caffeine (CAF) by square anodic stripping voltammetry (SqW-ASV) are performed. The cobalt Schiff base complex has been derived from salicylaldehyde, 3(-aminopropyl) triethoxysilane, and cobalt acetate....

In this work, the synthesis of cobalt Schiff base complex embedded SBA-15 and simultaneous determination of ascorbic acid (ASA), paracetamol (PAR), caffeine (CAF) by square anodic stripping voltammetry (SqW-ASV) are performed. The cobalt Schiff base complex has been derived from salicylaldehyde, 3(-aminopropyl) triethoxysilane, and cobalt acetate....

In this study, lead-free (1−x)[Bi0.5(Na0.8K0.2)0.5TiO3]–x[Ba0.844Ca0.156(Zr0.096Ti0.904)O3] (BNKT–BCZT, where x = 0.0, 0.025, 0.05, 0.075, and 0.1) ceramics were produced by tape-casting method to improve their relaxor behavior along with dielectric and energy-storage-density properties. A pure perovskite phase was found for all ceramic samples, wh...

A Bi4Ti3O12 template was added to the (1 − x)[Bi0.5(Na0.4K0.1)TiO3]-xBi4Ti3O12 ceramics (BNKT; where x = 0, 0.1, 0.15, 0.20, 0.25, and 0.30) and lead-free ceramics were produced by tape casting to improve their dielectric and ferroelectric properties. X-ray diffraction patterns and Raman scattering spectra showed a pure perovskite phase in the all-...

In this study, bismuth titanate (Bi4Ti3O12) templates were synthesized through the molten salt method in Na2CO3 and K2CO3 fluxes. The prepared Bi4Ti3O12 templates possessed plate-like morphologies with lengths of 5–20 μm and widths of 0.5–1 μm. They can be used to improve the electrical properties of Bi0.5 (Na0.4K0.1)TiO3 lead-free ceramics by empl...

The development of crystal-facet metal oxide heterostructures has been of great interest owing to their rational design and multi-functioning properties at the nanoscale level. Herein, we report a facile solution-based method for the synthesis of single-crystal Cu2O nanostructures (i.e. Cu2O-CuO) as a core. The graphene quantum dots (GQDs) with var...

Trong nghiên cứu này, các khuôn Bi4Ti3O12 (BiT) được tổng hợp bằng phương pháp muối nóng chảy trong hỗn hợp Na2CO3 – K2CO3. Các khuôn BiT hình thành và phát triển tốt tại nhiệt độ nung 1050 °C với hình dạng tấm rõ ràng với kính thước trung bình khoảng 5–20 μm và độ dày khoảng 0,5–1 μm. Từ các khuôn BiT trên, chúng tôi đã nghiên cứu chế tạo gốm khôn...

The materials based on TiO2 semiconductors are a promising option for electro-photocatalytic systems working as solar energy low-carbon fuels exchanger. These materials’ structures are modified by doping metals and metal oxides, by metal sulfides sensitization, or by graphene supported membrane, enhancing their catalytic activity. The basic phenome...

Reduced Graphene Oxide Wrapped Pd/TiO2 (r-GO@Pd/TiO2) which exhibited high photocatalytic activity under visible light was synthesized from commercial chemicals. The classic sol–gel method and the Ar gas bubbling composition was used in the preparation of the catalyst. Furthermore, the best Pd-doping concentration in crystals, the wrapping concentr...

In this paper, the corrosion behavior of Q235 carbon steel in the presence of Chlorella vulgaris (C. vulgaris)was investigated by surface analysis, weight loss and electrochemical measurements. Results showedthat the average corrosion rate in the presence of C. vulgaris was approximately 4 times as high as thatin the absence of C. vulgaris. The cor...

In this work, reduced graphene oxide (r-GO) sandwiched Pd–TiO2 thin films were fabricated in the form of moon pie on silica glass slices using a low-cost sol–gel facile coating method and their photocatalytic activity was studied using the degradation of methylene blue dye. The thin film was characterized using various techniques such as x-ray diff...

SnO2/TiO2 nanocomposite thin films on glass plate and nickel screen were prepared by liquid phase deposition method. The degradation experiments of methylene blue (MB) indicated that the composite film exhibited higher photocatalytic activity than pure TiO2 film. The improvement of the composite film photocatalytic activity can be attributed to the...