A facile synthesis of Zn-doped TiO2 nanostructures for enhanced photocatalytic performance

Santhi, K.; Ponnusamy, S.; Harish, S.; Navaneethan, M.

doi:10.1007/s10854-022-07945-z

Cited by 6 publications

(5 citation statements)

References 60 publications

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“…The results are shown in Figure A for TiO 2 -NPs, Figure B for 3 wt % Zn doped TiO 2 -NPs, and Figure C for 7 wt % Zn doped TiO 2 -NPs. The following micrographs depicted spherical, irregular, nonuniform, and porous-like surfaces . These graphs indicated that increasing the wt % ratio of Zn doped TiO 2 -NPs increased the grain size, and it was also observed that the agglomeration increased with Zn concentration in TiO 2 -NPs .…”

Section: Resultsmentioning

confidence: 81%

“…following micrographs depicted spherical, irregular, nonuniform, and porous-like surfaces. 39 These graphs indicated that increasing the wt % ratio of Zn doped TiO 2 -NPs increased the grain size, and it was also observed that the agglomeration increased with Zn concentration in TiO 2 -NPs. 40 It was also observed that the pH of the solution decreased due to the increased concentration of Zn which causes large aggregation.…”

Section: Resultsmentioning

confidence: 88%

“…This means that slight variations in band gap by metal doped in TiO 2 -NPs were reported in previous literature. 44 Ahamed et al (2016) reported that the band gap increased from 3.35 to 3.85 eV by increasing the Zn concentration in TiO 2 -NPs up to 10 wt %. 45 3.5.…”

Section: Semmentioning

confidence: 99%

“…Materials doped with Ag and Fe ions are another type of cationic co-doping . Co-doping was demonstrated to enhance the specific surface area, increase the life span of photogenerated charge carriers, and improve visible light absorption and biomedical activities. , The different metal doped TiO 2 -NPs played a central role for multiple applications as well as biomedical application. But in the current analysis, the liver cancer cell line activity was examined for the first time by Zn doped TiO 2 -NPs.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fabrication of Zinc Doped Titanium Dioxide Nanoparticles to Inhibit Escherichia coli Growth and Proliferation of Liver Cancer Cells (HepG2)

Munir,

Mahmood,

Abbas

et al. 2024

ACS Omega

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The current research is related to the synthesis of different concentrations (0, 3, and 7 wt %) Zn doped TiO 2 -NPs by using the coprecipitation method. The rutile, anatase crystal structure appeared on different diffracted peaks in TiO 2 -NPs, and the crystallite size (12 to 24 nm) was calculated by using XRD analysis. The spherical, irregular, porous grainlike surface morphology was observed by SEM analysis, and the identification of different functional modes such as hydroxyl, −C−O, −C−O−C, and Ti− O−Ti attached on the surface of the spectrum was examined via FTIR analysis. After that, the increased absorbance of TiO 2 -NPs by increasing the Zn concentration in TiO 2 -NPs was observed by UV−visible analysis. After that, the well diffusion method was performed to measure antibacterial activity, and the MTT assay was used to investigate anticancer activity against the HepG2 cell line. It was observed that the inhibition zone of S. aureus and E. coli increased by increasing the concentration of Zn-doped TiO 2 -NPs from 2 to 32 mm. The 7 wt % Zn-doped TiO 2 -NPs provided significant anticancer activity against the liver cancer cell line and antibacterial activity. In the future, Zn doped TiO 2 -NPs can be used for in vitro analysis against different microbial and animal models for the treatment of cancer.

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Section: Resultsmentioning

confidence: 81%

Section: Resultsmentioning

confidence: 88%

Section: Semmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fabrication of Zinc Doped Titanium Dioxide Nanoparticles to Inhibit Escherichia coli Growth and Proliferation of Liver Cancer Cells (HepG2)

Munir,

Mahmood,

Abbas

et al. 2024

ACS Omega

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“…The TEM micrograph of 0.2 mol% Zn-doped TiO 2 NPs is shown in figure 5(b). Most of the particles are irregularly shaped, plate-like nanoparticles, and the particle size was about 15-20 nm [48]. It can be seen that, the particle size in Zn-doped sample is slightly bigger than the undoped sample due to aggregation of nanoparticles doped with Zn.…”

Section: Microstructurementioning

confidence: 94%

Enhanced photoluminescence and structural properties of Zn-doped anatase TiO₂ nanoparticles

Yihunie

2024

Mater. Res. Express

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Undoped and zinc-doped TiO2 nanoparticles (NPs) were synthesized by the sol-gel method. The XRD spectra revealed that both synthesized undoped and Zn-doped TiO2 NPs remain in the anatase phase after calcined at 500 °C. The crystallite size was increased from 17 to 52 nm as the Zn content was increased from 0 to 0.2 mol%, which implies also a decrease of the micro-strain and surface area. The agglomerated spherical-like morphology with a diameter of roughly 10–20 nm was shown by SEM and TEM micrographs. The bandgap values were found to be decreased from 3.2 to 3.0 eV when Zn concentration increased from 0 to 0.2 mol%. A reduction in bandgap with an increase in dopant concentration may due to the increased in crystallite size along with enhanced lattice parameters (i.e., a and c) and d-spacing. From PL spectra, all samples exhibited a broad emission band in the visible region of about 400–500 nm centered at 430 nm. The highest PL emission was obtained for 0.2 mol% Zn doping. The broad PL emission over the visible range is greatly reduced at 0.4 mol% Zn due to concentration quenching. It is suggested that the Zn2+ doping induced oxygen vacancies which could promote the photoluminescence processes.

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Interface and Electronic Structure Regulation of RuO₂ through Ru/RuO₂ Heterointerface Construction and Zn Atom‐Doping for High‐Performance Overall Water Splitting in Both Alkaline and Acidic Media

Zhang,

Su,

Xiang

et al. 2024

Adv Funct Materials

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Rational design and fabrication of efficient catalysts for overall water splitting in an integrated electrolyzer are essential for energy storage and conversion. Herein, an ultra‐small substitutional Zn‐doped Ru/RuO2 heterostructure (5.6 nm) is synthesized through a facile pyrolyzing strategy as an efficient bi‐functional electrocatalyst for water splitting in both acidic and alkaline media. Experiments demonstrate that introducing appropriate alien atoms into RuO2 with an amorphous state can effectively optimize the electron structure and expose abundant defects, and thus increasing the number of active sites and improving the intrinsic activity of RuO2 for the oxygen evolution reaction (OER). In addition, the high hydrogen adsorption capability of metallic Ru makes Ru‐RuO2 heterointerface suitable for water splitting. Notably, the Ru/ZnRuO2 displays low overpotentials at 10 mA cm−2 with only 184 mV for OER in 0.5 m H2SO4 and 35 mV for HER in 1.0 m KOH. Besides, the as‐synthesized Ru/ZnRuO2 displays cell voltages of 1.540 and 1.567 V (at 10 mA cm−2) for water splitting with remarkable durability for more than 220 and 100 h, respectively, in acidic and alkaline media. This work provides a facile strategy for designing pH‐universal electrocatalysts toward overall water splitting.

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A facile synthesis of Zn-doped TiO2 nanostructures for enhanced photocatalytic performance

Cited by 6 publications

References 60 publications

Fabrication of Zinc Doped Titanium Dioxide Nanoparticles to Inhibit Escherichia coli Growth and Proliferation of Liver Cancer Cells (HepG2)

Fabrication of Zinc Doped Titanium Dioxide Nanoparticles to Inhibit Escherichia coli Growth and Proliferation of Liver Cancer Cells (HepG2)

Enhanced photoluminescence and structural properties of Zn-doped anatase TiO₂ nanoparticles

Interface and Electronic Structure Regulation of RuO₂ through Ru/RuO₂ Heterointerface Construction and Zn Atom‐Doping for High‐Performance Overall Water Splitting in Both Alkaline and Acidic Media

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A facile synthesis of Zn-doped TiO2 nanostructures for enhanced photocatalytic performance

Cited by 6 publications

References 60 publications

Fabrication of Zinc Doped Titanium Dioxide Nanoparticles to Inhibit Escherichia coli Growth and Proliferation of Liver Cancer Cells (HepG2)

Fabrication of Zinc Doped Titanium Dioxide Nanoparticles to Inhibit Escherichia coli Growth and Proliferation of Liver Cancer Cells (HepG2)

Enhanced photoluminescence and structural properties of Zn-doped anatase TiO2 nanoparticles

Interface and Electronic Structure Regulation of RuO2 through Ru/RuO2 Heterointerface Construction and Zn Atom‐Doping for High‐Performance Overall Water Splitting in Both Alkaline and Acidic Media

Contact Info

Product

Resources

About

Enhanced photoluminescence and structural properties of Zn-doped anatase TiO₂ nanoparticles

Interface and Electronic Structure Regulation of RuO₂ through Ru/RuO₂ Heterointerface Construction and Zn Atom‐Doping for High‐Performance Overall Water Splitting in Both Alkaline and Acidic Media