Correlation between the Structural, Morphological, Optical, Nanomechanical, and Tribological Properties of ZnO Films by USPT with Their Photocatalytic Activities

IF 5.8 2区 材料科学 Q2 CHEMISTRY, PHYSICAL
Meryem POLAT GONULLU, Hanifi CİNİCİ, Cemil CETİNKAYA, Suleyman TEKELI, Bulent BOSTAN, Damla Dilara CAKIL
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Abstract

The present work focused on studying the nanomechanical properties of ZnO thin films deposited on glass substrates using the ultrasonic spray pyrolysis technique. Structural and morphological properties are related to processing conditions, which affect mechanical, optical, and photocatalytic properties. To produce the ZnO films, three different molarities of spraying solution have been used which are 0.05 M; 0.075; and 0.10. The increase in the concentration of the spray solution led to an improvement in the crystal structure with the average crystallite size increasing from 28 nm to 35 nm. Morphological investigations revealed that the spherical nanoparticles with various size distributions. The rough surface topology emerged as a result of increasing solution molarity. Optical band gap values of the films decreased from 3.29 to 3.27 eV. Photocatalytic efficiency reached 93% for ZnO film produced at higher solution molarity. Improved hardness values were determined for all films. Scratch tests showed better adhesion behavior for ZnO film at low solution molarity. Results indicate that solution molarity is an important parameter of the physical and photocatalytic properties of ZnO films as well as mechanical behaviors.
USPT制备的ZnO薄膜的结构、形貌、光学、纳米力学和摩擦学性能与其光催化活性的关系
本文主要研究了超声波喷雾热解技术在玻璃基板上沉积ZnO薄膜的纳米力学性能。结构和形态性能与加工条件有关,影响机械、光学和光催化性能。为了制备ZnO薄膜,采用了三种不同摩尔浓度的喷涂溶液,分别为0.05 M;0.075;和0.10。随着喷雾溶液浓度的增加,晶体结构得到改善,平均晶粒尺寸从28 nm增加到35 nm。形态学研究表明,纳米颗粒呈球形,具有不同的尺寸分布。粗糙的表面拓扑结构是溶液摩尔浓度增加的结果。薄膜的光学带隙值由3.29 eV降至3.27 eV。在较高溶液摩尔浓度条件下制备的ZnO薄膜的光催化效率达到93%。测定了所有薄膜的硬度值。划痕实验表明,在低溶液摩尔浓度条件下,ZnO薄膜的粘附性能较好。结果表明,溶液的摩尔浓度是ZnO薄膜物理和光催化性能以及力学行为的重要参数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Alloys and Compounds
Journal of Alloys and Compounds 工程技术-材料科学:综合
CiteScore
11.10
自引率
14.50%
发文量
5146
审稿时长
67 days
期刊介绍: The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.
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