Photoelectrochemical water splitting performance of flower like ZnO nanostructures synthesized by a novel chemical method

Sohila, S.; Ramesh, R.; Yaakob, Zahira; Teridi, Mohd Asri Mat; Sopian, Kamaruzzaman

doi:10.1007/s10854-015-4100-2

Cited by 19 publications

(8 citation statements)

References 29 publications

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“…ZnO nanostructures have shown interesting results in PEC water splitting because of their outstanding electrochemical properties. 23 Rokade et al 24 designed 1D ZnO nanorods and nanotubes (NTs) by the electrodeposition method, the nanotube structure showed enhanced hydrogen PEC current density of 0.67 A cm À2 at 0.5 V over the nanorod morphology.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cu, Ni and Pb doping on the photo-electrochemical activity of ZnO thin films

2019

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Section: Introductionmentioning

confidence: 99%

Effect of Cu, Ni and Pb doping on the photo-electrochemical activity of ZnO thin films

2019

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“…As a polar crystal, ZnO is known to possess partially positively charged Zn 2+ -terminated (001) and negatively charged O 2− -terminated (00 ) polar surfaces. It is evident that ZnO was reported to show the flower-like morphology [ 25 , 29 ]. In the current experiment, it is deduced that the polar ZnO nanoseeds could be adsorbed onto the negative-charged surface of SL and then form the ZnO-SL composite with layer-by-layer structure.…”

Section: Resultsmentioning

confidence: 99%

Renewable Lignosulfonate-Assisted Synthesis of Hierarchical Nanoflake-Array-Flower ZnO Nanomaterials in Mixed Solvents and Their Photocatalytic Performance

Zuo

Guo

et al. 2016

Nanoscale Res Lett

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With the assistance of sodium lignosulfonate, hierarchical nanoflake-array-flower nanostructure of ZnO has been fabricated by a facile precipitation method in mixed solvents. The sodium lignosulfonate amount used in our synthetic route is able to fine-tune ZnO morphology and an abundance of pores have been observed in the nanoflake-array-flower ZnO, which result in specific surface area reaching as high as 82.9 m2 · g−1. The synthesized ZnO exhibits superior photocatalytic activity even under low-power UV illumination (6 W). It is conjectured that both nanoflake-array structure and plenty of pores embedded in ZnO flakes may provide scaffold microenvironments to enhance photocatalytic activity. Additionally, this catalyst can be used repeatedly without a significant loss in photocatalytic activity. The low-cost, simple synthetic approach as well as high photocatalytic and recycling efficiency of our ZnO nanomaterials allows for application to treat wastewater containing organic pollutants in an effective way.

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“…Conversely, 3D-ZnO superstructures were regarded as promising material for PEC water-splitting due to their ability to improve light absorption and harvest solar light more efficiently by increasing the quantity of endless light scattering [20,21]. These superstructures were synthesized with various morphologies, such as mulberrylike [22], worm-like [23], wool ball [24], birdcage-like [25], hedgehogs [26], firecracker [27], nanocomb [28], nanoflower [15], and nanoneedle [29].…”

Section: Introductionmentioning

confidence: 99%

3D-ZnO Superstructure Decorated with Carbon-Based Material for Efficient Photoelectrochemical Water-Splitting under Visible-Light Irradiation

et al. 2023

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The depletion of fossil fuels is a worldwide problem that has led to the discovery of alternative energy sources. Solar energy is the focus of numerous studies due to its huge potential power and environmentally friendly nature. Furthermore, one such area of study is the production of hydrogen energy by engaging photocatalysts using the photoelectrochemical (PEC) method. 3-D ZnO superstructures are extensively explored, showing high solar light-harvesting efficiency, more reaction sites, great electron transportation, and low electron-hole recombination. However, further development requires the consideration of several aspects, including the morphological effects of 3D-ZnO on water-splitting performance. This study reviewed various 3D-ZnO superstructures fabricated through different synthesis methods and crystal growth modifiers, as well as their advantages and limitations. Additionally, a recent modification by carbon-based material for enhanced water-splitting efficiency has been discussed. Finally, the review provides some challenging issues and future perspectives on the improvement of vectorial charge carrier migration and separation between ZnO as well as carbon-based material, using rare earth metals, which appears to be exciting for water-splitting.

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Photoelectrochemical water splitting performance of flower like ZnO nanostructures synthesized by a novel chemical method

Cited by 19 publications

References 29 publications

Effect of Cu, Ni and Pb doping on the photo-electrochemical activity of ZnO thin films

Effect of Cu, Ni and Pb doping on the photo-electrochemical activity of ZnO thin films

Renewable Lignosulfonate-Assisted Synthesis of Hierarchical Nanoflake-Array-Flower ZnO Nanomaterials in Mixed Solvents and Their Photocatalytic Performance

3D-ZnO Superstructure Decorated with Carbon-Based Material for Efficient Photoelectrochemical Water-Splitting under Visible-Light Irradiation

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