Pressure-induced and flaring photocatalytic diversity of ZnO particles hallmarked by finely tuned pathways

Vrankic, Martina ¹Saric, Ankica ¹Nakagawa, Takeshi ²Ding, Yang ²Despotovic, Ines ¹Kanizaj, Lidija ¹Ishii, Hirofumi ³Hiraoka, Nozomu ³Drazic, Goran ⁴Lutzenkirchen-Hecht, Dirk ⁵Peter, Robert ⁶Petravic, Mladen⁶

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作者信息

1. Rudjer Boskovic Inst
2. Ctr High Pressure Sci & Technol Adv Res
3. Natl Synchrotron Radiat Res Ctr
4. Natl Inst Chem
5. Berg Univ Wuppertal
6. Univ Rijeka
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Abstract

Microstructure and morphology of particles play key roles in optimizing the properties of shape-selected ZnO particles, which are essential factors for flexible and reliable applications. In particular, chemical understanding and physical measurement with scientific theory must be further integrated for the realization of finely tuned ZnO nano microstructures with desired sizes and shapes. Herein, we deliver a detailed description of the mechanism that mimics the formation of finely-tuned, spherical ZnO nanoparticles (NPs) at the computational level. We tackled issues that significantly affect the favorable structural motifs of the spherical ZnO NPs grown hydrothermally from ethanolic solution leading to their advancing chemical and physical properties. The excellent photocatalytic activity of the spherical ZnO was addressed by an apparent-rate constant of 9.7(2)x10(-2) min(-1) efficiently degrading the Rhodamine B solution by similar to 99% in 50 min. The apparent-rate constant for tubular ZnO particles is almost six times lower than that of spherical ZnO NPs. Comparative results revealed that the diversity of size and shape of ZnO particles distinguishes the wurtzite-to-rocksalt transformation reversibility phenomena by dictating the microstructure-dependent deformation behavior and ultimately leading to different transition-induced elastic strain responses to hydrostatic pressure up to 30 GPa. (C) 2021 Elsevier B.V. All rights reserved.

Key words

High pressure/X-ray diffraction/Microstructure/Phase transition/Oxide materials/Catalysis/ZINC-OXIDE NANOPARTICLES/INDUCED STRUCTURAL TRANSFORMATIONS/SOLVOTHERMAL SYNTHESIS/OPTICAL-PROPERTIES/METHYLENE-BLUE/THIN-FILMS/SURFACE FUNCTIONALIZATION/PHASE-TRANSITION/NANOSTRUCTURES/DEGRADATION

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出版年

2022

Journal of Alloys and Compounds

EISCI

ISSN：0925-8388

被引量3

参考文献量124

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