کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5468035 | 1518926 | 2017 | 41 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High photocatalytic property and crystal growth of spindle-like ZnO microparticles synthesized by one-step hydrothermal method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
The spindle-like ZnO microparticles were successfully synthesized by a simple hydrothermal method using triethanolamine (TEA) as the surfactant. The phase components, particle sizes and morphologies of ZnO samples derived from different contents of TEA (3, 4, 5, 6 and 7Â mL) were characterized by XRD, SEM, TEM, EDS and BET. The photocatalytic activity of ZnO microparticles with different morphologies was evaluated by degradation of methyl orange (MO). The photocatalytic degradation process was monitored in terms of decolorization and total organic carbon (TOC) removals. The results indicated that the spindle-like ZnO exhibited higher photodegradation efficiencies under UV light irradiation than other ZnO structures due to the special morphology. The photodegradation could be described as the pseudo-first-order kinetics with apparent rate constants ranging from 3.59Â ÃÂ 10â3 to 1.04Â ÃÂ 10â2Â minâ1, which were based on the morphology of the structures. The sample presented a good recycle performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 144, October 2017, Pages 229-236
Journal: Vacuum - Volume 144, October 2017, Pages 229-236
نویسندگان
Xingjie Lv, Yi Du, Zhongfu Li, Zhongtao Chen, Kai Yang, Tong Liu, Chaofeng Zhu, Minxing Du, Yibing Feng,