纤锌矿晶体结构
材料科学
降水
光催化
结晶度
纳米颗粒
吸光度
化学工程
微晶
燃烧
Crystal(编程语言)
亚甲蓝
锌
纳米技术
化学
冶金
有机化学
复合材料
催化作用
物理
色谱法
气象学
计算机科学
工程类
程序设计语言
作者
Sucheewin Krobthong,Tipawan Rungsawang,Sutthipoj Wongrerkdee
出处
期刊:Toxics
[Multidisciplinary Digital Publishing Institute]
日期:2023-03-14
卷期号:11 (3): 266-266
被引量:29
标识
DOI:10.3390/toxics11030266
摘要
ZnO nanoparticles (NPs) were comparatively synthesized via precipitation and combustion techniques. The ZnO NPs synthesized via precipitation and combustion exhibited similar polycrystalline hexagonal wurtzite structures. The large crystal sizes of ZnO NPs were obtained from the ZnO precipitation in comparison with those from the ZnO combustion, while the particle sizes were in the same range. The functional analysis implied that the ZnO structures had surface defects. Moreover, absorbance measurement showed the same absorbance range in ultraviolet light. In the photocatalytic degradation of methylene blue, ZnO precipitation exhibited higher degradation performance than ZnO combustion. This was attributed to the larger crystal sizes of ZnO NPs, which provided an enduring carrier movement at semiconductor surfaces and reduced electron-hole recombination. Thus, the crystallinity of ZnO NPs can be considered an important factor in photocatalytic activity. Furthermore, precipitation is an interesting synthesizing method for preparing ZnO NPs with large crystal sizes.
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