Optimization of ZnO Nanoparticles’ Synthesis via Precipitation Method Applying Taguchi Robust Design DOI Open Access

Maria-Anna Gatou,

Katerina Kontoliou,

Eleni Volla

et al.

Catalysts, Journal Year: 2023, Volume and Issue: 13(10), P. 1367 - 1367

Published: Oct. 13, 2023

Zinc oxide (ZnO) possesses exceptional potential to be utilized in water and wastewater treatment applications, either as a photocatalyst or membrane incorporation. In the present study, ZnO nanoparticles were synthesized using precipitation method. The Taguchi approach with L32b orthogonal array was order optimize experimental conditions for synthesis of ensure that relatively smaller-sized particles obtained. design characterized by ten factors, where nine them possessed four levels, while one had two levels. This study’s factors type Zn precursor, concentration precipitating agent, agent’s concentration, solvent, pH value temperature used during synthetic procedure, calcination temperature, time stirring synthesis, well speed. influences those on selected response parameters (the average crystallite size, degree crystallinity, energy band gap (Eg), photodegradation constant (k)) then evaluated. XRD analysis calculated Eg values indicated hexagonal wurtzite structure only crystalline phase produced samples. photocatalytic efficiency all examined degradation rhodamine B under UV light irradiation. optimal achieved zinc acetate dihydrate precursor at equal 0.3 M, sodium hydroxide agent (1.5 M), methanol solvent 13), procedure 70 °C, 600 °C 90 min time, 700 rpm optimized sample based aforementioned thoroughly characterized. acquired results confirmed prediction approach, most enhanced k-value observed.

Language: Английский

A review on ZnO and its modifications for photocatalytic degradation of prominent textile effluents: Synthesis, mechanisms, and future directions DOI
Abhishek R. Bhapkar, Shekhar D. Bhame

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112553 - 112553

Published: March 22, 2024

Language: Английский

Citations

61
The physical properties and photocatalytic activities of green synthesized ZnO nanostructures using different ginger extract concentrations DOI Creative Commons
Maryam Aliannezhadi,

Seyedeh Zahra Mirsanaee,

Mohaddeseh Jamali

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Jan. 23, 2024

Abstract The green synthesis method which is aligned with the sustainable development goals (SDGs) theory, proposed to synthesize ZnO nanoparticles using ginger extract treat acidic wastewater and factory effluent as a current challenge effects of concentration extracts on synthesized nanostructures are investigated. results declare that single-phase hexagonal formed less than 25 mL crystallite size NPs increased increasing extract. Also, significant morphology (nanocone, nanoflakes, flower-like) particle demonstrated. low leads formation while flower-like structure gradually completed by Furthermore, changes in specific surface area (SSA) samples observed (in range 6.1–27.7 m 2 /g) variation best SSA related 10 strong effect reflectance spectra NPs, especially UV region proved. indirect (direct) band gap energies obtained 3.09–3.20 eV (3.32–3.38 eV). photocatalytic activities for degradation methylene blue indicate impressive efficiency it reaches up 44% 83% prepared 5 pH 4.3 5.6, respectively. This study provided new insights into fabrication practical application high-performance photocatalysts degrading organic pollutants an solution.

Language: Английский

Citations

28
Sunlight assisted degradation of methylene blue dye by zinc oxide nanoparticles green synthesized using Vitex negundo plant leaf extract DOI Creative Commons
Srinivasan Venkatesan, S. Suresh,

J. Arumugam

et al.

Results in Chemistry, Journal Year: 2024, Volume and Issue: 7, P. 101315 - 101315

Published: Jan. 1, 2024

Zinc oxide nanoparticles (ZnO NPs) were formed through a simple green synthesis route using Vitex negundo (V. negundo) leaf extract as reducing and capping source. Morphological, structural, chemical optical features of prepared ZnO NPs examined by field emission SEM, XRD, EDAX, PL, FTIR UV-vis DRS, respectively. FESEM images precisely visualized morphology the spherical with particles size ranges between 5 35 nm having mean diameter ∼19 nm. XRD pattern revealed formation hexagonal wurtzite structured high crystallinity. Asymmetric stretching vibration Zn-O bond analysis confirmed NPs. Catalytic activity was assessed against methylene blue (MB) dye degradation under natural sunlight illumination. Results photocatalytic experiment disclosed an impressive MB efficiency 98.50% at 60 min. Moreover, synthesized exhibited maximum mineralization (TOC removal) 92.34% h

Language: Английский

Citations

21
Enhanced photocatalytic degradation of methylene blue and methyl orange using biogenic ZnO NPs synthesized via Vachellia nilotica (Babool) leaves extract DOI Creative Commons
Komal Gupta, Basudha Sharma, Vijay Kumar Garg

et al.

Hybrid Advances, Journal Year: 2024, Volume and Issue: 5, P. 100160 - 100160

Published: Feb. 23, 2024

Biogenic zinc oxide (b-ZnO) NPs were synthesized via the leaf extract of Vachellia nilotica (Babool) due to their rich source bioactive complexes, which have great potential as a reliable, sustainable, and eco-friendly system. Sharp peaks in XRD pattern b-ZnO confirmed hexagonal wurtzite crystal structure. The crystallite size, D, b-ZnO, decreased from 22.22 nm 10.13 nm, lattice strain (τ) increased 5.22 × 10−3 11.47 material changed synthetic biogenic, respectively. Eg was observed be 3.37 eV. specific surface area, total pore volume average diameter ZnO 9.5 34 m2/g, 0.3536–0.3854 cm3/g, 17.24–19.56 photocatalytic degradation 72% 80% for MO dye, 87% 93% MB dye completely degraded within 2h. This work presents an essential advancement towards achieving enhanced performance reduce water pollutants using will guide use biogenic nanomaterials applications.

Language: Английский

Citations

21
Efficient degradation of naproxen in wastewater using Ag-deposited ZnO nanoparticles anchored on a house-of-cards-like MFI-type zeolite: Preparation and physicochemical evaluations of the photocatalyst DOI

Ashkan Moradi,

Mohammad Kazemeini, Vahid Hosseinpour

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 60, P. 105155 - 105155

Published: March 20, 2024

Language: Английский

Citations

19
A comprehensive review of nanomaterials for efficient heavy metal ions removal in water treatment DOI
Nur Azalina Suzianti Feisal, Noor Haziqah Kamaludin, Mohd Azwan Ahmad

et al.

Journal of Water Process Engineering, Journal Year: 2024, Volume and Issue: 64, P. 105566 - 105566

Published: June 7, 2024

Language: Английский

Citations

18
Green synthesis of zinc oxide marigold shaped clusters using Eucalyptus globulus leaf extract as robust photocatalyst for dyes degradation under sunlight DOI

Noureen Ansari,

Arif Ali, M. Shaheer Akhtar

et al.

Materials Science in Semiconductor Processing, Journal Year: 2024, Volume and Issue: 173, P. 108087 - 108087

Published: Jan. 11, 2024

Language: Английский

Citations

17
Green synthesis of ZnO nanoparticles using Justicia adhatoda for photocatalytic degradation of malachite green and reduction of 4-nitrophenol DOI Creative Commons

M. B. Mahajan,

Sanjeev Kumar, Jyoti Gaur

et al.

RSC Advances, Journal Year: 2025, Volume and Issue: 15(4), P. 2958 - 2980

Published: Jan. 1, 2025

Achieving the smallest crystallite/particle size of zinc oxide nanoparticles (ZnO NPs) reported to date, measuring 5.2/12.41 nm with Justicia adhatoda (J. adhatoda) leaf extract, this study introduces a facile green synthesis. Utilizing aqueous J. extract as both reducing and stabilizing agent, method leverages plant's rich phytochemical composition produce highly crystalline morphologically controlled ZnO NPs. This precise particle control highlights effectiveness synthesis process in morphological tuning. The synthesized NPs were thoroughly characterized using XRD, UV-vis spectroscopy, FTIR, FESEM, HRTEM, which collectively revealed superior crystallinity, morphology, unique surface properties conferred by bio-capping. photocatalytic performance these biogenic was evaluated for degradation two model pollutants: malachite (MG), synthetic dye, 4-nitrophenol (4-NP), toxic organic compound. exhibited exceptional efficiency, achieving 99.8% MG within 180 minutes demonstrating rapid reduction 4-NP 4-aminophenol reaction rate constant 0.245 min-1 under UV sunlight irradiation. Mechanistic studies attributed high reactive oxygen species (ROS) generation electron-hole pair interactions, supported improved charge separation area. work not only establishes potential adhatoda-mediated addressing persistent pollutants but also sets benchmark size-controlled By delivering scalable eco-friendly water remediation technologies, advances nanotechnology.

Language: Английский

Citations

5
Critical assessment of a Ce-doped SnO2 loaded on PPSAC composite photocatalyst on improved photocatalytic activity under visible light DOI
L. Guganathan, Radha Perumal Ramasamy,

K. Sathishkumar

et al.

Ionics, Journal Year: 2024, Volume and Issue: 30(5), P. 2915 - 2926

Published: March 26, 2024

Language: Английский

Citations

15
Photocatalytic and antimicrobial studies of green synthesized Dy3+doped ZnO nanoparticles prepared from Rhododendron arboreum petal extract DOI Creative Commons

Palak Ahir,

Indresh Kumar Maurya, Rahul Jain

et al.

Chemical Physics Impact, Journal Year: 2024, Volume and Issue: 8, P. 100461 - 100461

Published: Jan. 6, 2024

In this study, the primary focus revolves around synthesis of zinc oxide (ZnO) and dysprosium-doped (Dy-doped ZnO) nanoparticles utilizing a green chemistry approach, employing Rhododendron arboreum petal extract as key component. A thorough characterization has been carried out, involving range analytical techniques including UV-visible spectroscopy, Fourier-transform infrared (FTIR) X-ray diffraction (XRD), photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM), energy-dispersive (EDX), high-resolution transmission (HRTEM), selected-area (SAED), fluorescence spectroscopy. The structural examination confirmed persistent hexagonal wurtzite structure ZnO nanoparticles, which remained unaltered even with Dy doping. XPS analysis corroborated presence lattice oxygen in addition to confirming Dy3+ Zn2+. results indicated that incorporation ions replaces Zn2+ host leading an increase defects inside ZnO. Based on HRTEM images, particle size was determined be 31 nm for 39 Dy-doped nanoparticles. FESEM imaging unveils morphology reminiscent pebbles, EDX spectra provide additional evidence Zn, Dy, O elements within aligns findings from XPS. Subsequently, these synthesized were harnessed remediation Novacron Brown, textile dye. Additionally, explored their antimicrobial antifungal properties highlight considerable potential specific domains.

Language: Английский

Citations

14