Synthesis, photocatalytic degradation and antibacterial properties of selenium or silver doped zinc oxide nanoparticles: A detailed review

Ifijen, Ikhazuagbe H.; Maliki, Muniratu; Anegbe, Bala

doi:10.1016/j.onano.2022.100082

Cited by 46 publications

(13 citation statements)

References 131 publications

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“…14 To obtain visible-light active materials, various techniques can be employed, including morphology alteration, compositing, doping, and the combing of inorganic and organic precursors (such as reduced graphene, carbon nitrides, boron nitrides, nonmetals, and noble metals). Hybrids and heterojunctions, which combine two or more semiconductors with distinct bandgaps, 15,16 were found to be superior to other modification methods in this study. Photo-induced electron transition occurs from the valence band (VB) to the conduction band (CB) when the heterojunction is activated by adequate light energy.…”

Section: Introductionmentioning

confidence: 71%

Development of Z-scheme bimetallic tungstate-supported nitrogen deficient g-C₃N₄heterojunction for the treatment of refractory pharmaceutical pollutants

et al. 2023

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Section: Introductionmentioning

confidence: 71%

Development of Z-scheme bimetallic tungstate-supported nitrogen deficient g-C₃N₄heterojunction for the treatment of refractory pharmaceutical pollutants

et al. 2023

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“…The high specific capacity, affordability, high efficiency, and accessibility of NiO nanoparticles (NPs) make them a popular choice for catalysis . Numerous studies have been conducted using nickel oxide nanoparticles to photocatalytically degrade methylene blue dye . However, the use of transition metals and their ions in wastewater treatment systems is limited due to their hazardous nature and difficulty in recycling, and the simple ability of pure nanoparticles to aggregate prevents their usefulness and catalytic activity when utilized alone as well as the toxicity of NiO NPs and their risk to the environment and human health is still an open topic .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Kaolin-Supported Nickel Oxide Composites for the Catalytic Oxidative Degradation of Methylene Blue Dye

Mohammed,

Atlabachew,

Aragaw

et al. 2024

ACS Omega

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Organic dye contamination of water is a contributing factor to environmental pollution and has a negative impact on aquatic ecology. In this study, unsupported NiO and kaolin-supported NiO composites were synthesized by a one-step wet impregnation–precipitation method through the precipitation of nickel hydroxide onto locally accessible, inexpensive, and easily treated kaolin surfaces by using sodium hydroxide as a precipitating agent. The product was calcined at 500 °C and used for the catalytic oxidative degradation of methylene blue (MB) dye in an aqueous solution. The morphology, structure, and interactions of the synthesized materials were explored by SEM, XRD, and FT-IR spectroscopy. The characterization results revealed the fabrication and the growth of NiO on the kaolin surface. To determine the catalytic oxidative degradation performance of the catalyst, many experiments have been performed using the MB dye as a model dye. The catalytic degradation tests confirmed the importance of NiO and the high catalytic activity of the synthesized NiO/kaolin composite toward MB dye degradation. The oxidative degradation results showed that the optimized precursor amount on the kaolin surface could efficiently enhance the removal of MB dye. The kinetic investigation of the catalytic degradation of MB dye fitted the pseudo-first-order kinetic model. High removal efficiency was observed after eight reuse cycles, proving the exceptional stability and reusability of the composite. The catalytic process also proceeded with a low activation energy of 30.5 kJ/mol. In conclusion, the kaolin-supported NiO composite was established to be a favorable catalyst to degrade a model dye (MB) from an aqueous solution in the presence of inexpensive and easily available NaOCl with a catalytic efficiency of the material higher than 99% of the 20.3 mg catalyst within 6 min with an apparent rate constant, k app, higher than 0.44625 min–1, which is far better than that of the unsupported catalyst with a k app of 0.0926 min–1 at 10 mg dose in 20 min.

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“…However, industrial-scale NP production has introduced a new type of pollution into the environment. It is highly desirable to reduce the environmental loads of chemical pollution by developing new and convenient methods to overcome the drawbacks of chemical methods, improve yield, and lower costs [6,7]. Zinc oxide (ZnO) nano particles (NPs) have sparked considerable interest in recent years due to their potential applications in solar cells, gas sensors, photocatalysts, and nanomedicines [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Polymer precursor method for the synthesis of zinc oxide nanoparticles: A Novel Approach

Kumar¹,

Bhoj

Wohra

et al. 2023

Preprint

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Zinc oxide (ZnO) is a very important compound used in different industries. Several methods are currently used to synthesize ZnO. In this study, we discuss a novel chemical route used to synthesize and purify ZnO in the nanometer scale, with full control on the particle size. Zinc oxide nanoparticles have been synthesized using a simple chemical method using polymer precursors. The synthesized nanoparticles were characterized by X-ray Diffraction (XRD), Scanning electron microscope (SEM), Transmission electron microscope (SEM) and Fourier Transform Infrared spectroscopy (FTIR). The average crystallite size as measured from XRD and TEM image confirmed the particle size in the range of 30-50 nm. The SEM image was used to confirm the uniform spherical particles of zinc oxide nanoparticles.

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Synthesis, photocatalytic degradation and antibacterial properties of selenium or silver doped zinc oxide nanoparticles: A detailed review

Cited by 46 publications

References 131 publications

Development of Z-scheme bimetallic tungstate-supported nitrogen deficient g-C₃N₄heterojunction for the treatment of refractory pharmaceutical pollutants

Development of Z-scheme bimetallic tungstate-supported nitrogen deficient g-C₃N₄heterojunction for the treatment of refractory pharmaceutical pollutants

Synthesis of Kaolin-Supported Nickel Oxide Composites for the Catalytic Oxidative Degradation of Methylene Blue Dye

Polymer precursor method for the synthesis of zinc oxide nanoparticles: A Novel Approach

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Synthesis, photocatalytic degradation and antibacterial properties of selenium or silver doped zinc oxide nanoparticles: A detailed review

Cited by 46 publications

References 131 publications

Development of Z-scheme bimetallic tungstate-supported nitrogen deficient g-C3N4heterojunction for the treatment of refractory pharmaceutical pollutants

Development of Z-scheme bimetallic tungstate-supported nitrogen deficient g-C3N4heterojunction for the treatment of refractory pharmaceutical pollutants

Synthesis of Kaolin-Supported Nickel Oxide Composites for the Catalytic Oxidative Degradation of Methylene Blue Dye

Polymer precursor method for the synthesis of zinc oxide nanoparticles: A Novel Approach

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Development of Z-scheme bimetallic tungstate-supported nitrogen deficient g-C₃N₄heterojunction for the treatment of refractory pharmaceutical pollutants

Development of Z-scheme bimetallic tungstate-supported nitrogen deficient g-C₃N₄heterojunction for the treatment of refractory pharmaceutical pollutants