One‐step hydrothermal synthesis of ZnO microtubes with an efficient photocatalytic activity

Abideen, Zain Ul; Shah, Abid Hussain; Teng, Fei; Abro, Mohammad Ilyas; Ullah, Kifayat

doi:10.1049/mna2.12024

Cited by 22 publications

(3 citation statements)

References 27 publications

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“…Among of them, some of the common and popular techniques include the hydrothermal method, sol-gel method, co-precipitation method, solution synthesis, vapor solid liquid, thermal decomposition and solid-state. [48][49][50][51][52][53][54][55] Hydrothermal and solvothermal synthesis are effective methods for synthesis of materials at high temperature (100 °C-1000 °C) and under high vapor pressures (1-100 MPa). These techniques are used to produce ZnO nanostructures (0D, 1D, 2D and 3D nanostructures), which are very effective for controlling the shapes and dimensions, crystallinity and purity of the material.…”

Section: Synthesis Of Nanostructural Znomentioning

confidence: 99%

Review—Nanostructural ZnO-Based Electrochemical Sensor for Environmental Application

Ahmed

Zhao

et al. 2022

J. Electrochem. Soc.

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Recently, a variety of sensors based on zinc oxide nanostructures have been used for the detection of various environmental contaminants. The morphological versatility of zinc oxide crucially improves its sensing properties. In this review, we have mostly focused on the preparation methods of zinc oxide with different structures and morphologies and the electrochemical behaviors for the detection of environmental contaminants including heavy metal ions, volatile organic compounds, pesticides, bacteria and viruses. Numerous electrodes are available for the detection of contaminants in electrochemical systems, but a reliable, portable and inexpensive electrode is urgently needed. Thus, we have summarized several nanostructured zinc oxide -based materials and their actual applications. Controllable structures and morphologies of zinc oxide nanomaterials can make them have an adjustable performance for electrochemical sensors. The investigation of different structure and morphology-dependent sensing properties of zinc oxide nanostructures can offer an insight into the sensing mechanism and enhancement of property for many electrochemical sensors. Zinc oxide -based nanomaterials will serve as a quick and simple platform to identify a wide range of mentioned contaminants with very low detection limits by electrochemical method

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Section: Synthesis Of Nanostructural Znomentioning

confidence: 99%

Review—Nanostructural ZnO-Based Electrochemical Sensor for Environmental Application

Ahmed

Zhao

et al. 2022

J. Electrochem. Soc.

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“…The ZnO thin films can be easily nanostructured by different techniques like magnetron sputtering, [ 11 ] thermal evaporation, [ 12 ] sol‐gel, [ 13 ] chemical vapor deposition (CVD), [ 14 ] hydrothermal, [ 15 ] and spray pyrolysis technique, used in this work due to its simplicity, low cost and non‐vacuum deposition method allowing the reproducibility of reliable and uniform films of metal, oxide, and semiconductor. [ 16 ]…”

Section: Introductionmentioning

confidence: 99%

“…[8] However, recombination can be relatively avoided by separating, trapping, and transferring charges to intermediate energy levels as structural and surface defects. [9,10] The ZnO thin films can be easily nanostructured by different techniques like magnetron sputtering, [11] thermal evaporation, [12] sol-gel, [13] chemical vapor deposition (CVD), [14] hydrothermal, [15] and spray pyrolysis technique, used in this work due to its simplicity, low cost and non-vacuum deposition method allowing the reproducibility of reliable and uniform films of metal, oxide, and semiconductor. [16] In this study, the modification of physical properties by varying the deposition temperature was targeted to enhance the photodegradation efficiency.…”

Section: Introductionmentioning

confidence: 99%

Effect of Deposition Temperature on Morphological, Optical, and Photocatalytic Properties of ZnO Thin Films Synthesized by Ultrasonic Spray Pyrolysis Method

Ouhaibi

Saoula

Ghamnia

et al. 2022

Crystal Research and Technology

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ZnO thin films are synthesized by an ultrasonic spray pyrolysis method, with the deposition temperature in a range between 250–450 °C. The obtained thin films are analyzed by X‐ray diffraction (XRD), atomic force microscopy (AFM), and photoluminescence (PL). The samples are used in a photocatalytic experiment to compare the degradation efficiency by methylene blue decomposition under UV irradiation. XRD patterns confirm a polycristalline wurtzite structure with preferred orientation along the (002) plane. AFM images reveal an important change in the shape and size of the grains constituting the surface. The roughness values are in the range of 17–93 nm. Thickness values of thin films deposited at 250, 350, and 450 °C are ≈0.9, 2.3, and 1.4 µ, respectively. From PL characterization, the spectra are found to be sensitive to the deposition temperature, where emission peaks with different forms and intensities are observed. One peak at 389 nm is attributed to the recombination of free excitons, and other peaks between 403–522 nm correspond to violet, blue, and green emissions indicating the presence of Zn vacancies, Zn interstitials, and oxygen vacancies, respectively, in the ZnO structure. The photocatlytic results show that the best photocatalytic efficiency of 88% is achieved by ZnO thin film deposited at 450 °C.

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Modified ZnO Nanomaterials Electrodes for Monitoring of Environmental Contaminants

Bhamare,

Kulkarni

2024

Nanostructure Science and Technology

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One‐step hydrothermal synthesis of ZnO microtubes with an efficient photocatalytic activity

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 22 publications

References 27 publications

Review—Nanostructural ZnO-Based Electrochemical Sensor for Environmental Application

Review—Nanostructural ZnO-Based Electrochemical Sensor for Environmental Application

Effect of Deposition Temperature on Morphological, Optical, and Photocatalytic Properties of ZnO Thin Films Synthesized by Ultrasonic Spray Pyrolysis Method

Modified ZnO Nanomaterials Electrodes for Monitoring of Environmental Contaminants

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