کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8027340 | 1517620 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of porous ZnO/TiO2 thin films with superhydrophilicity and photocatalytic activity via a template-free sol-gel method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Synthesis of porous ZnO/TiO2 thin films with superhydrophilicity and photocatalytic activity via a template-free sol-gel method Synthesis of porous ZnO/TiO2 thin films with superhydrophilicity and photocatalytic activity via a template-free sol-gel method](/preview/png/8027340.png)
چکیده انگلیسی
Superhydrophilicity of TiO2 thin film under natural conditions is of great importance for antifogging and self-cleaning applications of glass products. Transparent superhydrophilic porous ZnO/TiO2 composite films were prepared on glass substrates using a template-free sol-gel method. The results indicated that the porous ZnO (10%)/TiO2 composite film possesses superhydrophilicity with water contact angle less than 5° without UV irradiation. Surface chemical composition of the films was characterized by X-ray photoelectron spectroscopy (XPS). The morphologies of the porous films were characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The porous morphology, crystal structure and surface chemical composition were significantly affected by ZnO addition. The natural superhydrophilic performance was attributed to the synergistic effect of the porous structure and surface hydroxyl groups. Photocatalytic activities of the ZnO/TiO2 composites were also evaluated using methyl orange (MO) as a model pollutant, with 78.1% of MO degraded by ZnO (10%)/TiO2, which was higher than 49.3% obtained from pure TiO2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 258, 15 November 2014, Pages 531-538
Journal: Surface and Coatings Technology - Volume 258, 15 November 2014, Pages 531-538
نویسندگان
Yanfeng Chen, Chaojie Zhang, Weixin Huang, Chunxiao Yang, Tao Huang, Yue Situ, Hong Huang,