Preparation of Al-TiO2 nanotubes and their photocatalytic activities

被引：4

作者：

Lee, Hyeran ^{[1
]}

Lee, Deuk Yong ^{[1
]}

Lee, Myung-Hyun ^{[2
]}

Kim, Bae-Yeon ^{[3
]}

Song, Yo-Seung ^{[4
]}

机构：

[1] Daelim Univ, Dept Biomed Engn, 29 Imgok Ro, Anyang 13916, South Korea

[2] Korea Inst Ceram Engn & Technol, Div Energy & Environm, Jinju 52851, South Korea

[3] Incheon Natl Univ, Dept Mat Sci & Engn, Incheon 22012, South Korea

[4] Korea Aerosp Univ, Dept Mat Engn, Goyang 10540, South Korea

来源：

JOURNAL OF ELECTROCERAMICS | 2019年 / 42卷 / 3-4期

基金：

新加坡国家研究基金会;

关键词：

Al-TiO2; electrospinning; nanotube; calcination temperature; methylene blue; Photodegradation; BAND-GAP ENERGY; CRYSTAL-STRUCTURE; TIO2; DEGRADATION; FABRICATION; NANOFIBERS; MORPHOLOGY;

D O I：

10.1007/s10832-018-0159-5

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Al-TiO2 nanotubes having an Al/Ti molar ratio of 0.38 were prepared using a sol-gel derived electrospinning and subsequent calcination at intervals of 50 degrees C from 500 to 650 degrees C to investigate the effect of calcination temperature on the crystal structure and the photocatalytic activity of methylene blue (MB). XRD results revealed that the Al-TiO2 nanotubes were composed of anatase (4546%) and rutile (5355%). The Barrette-Emmett-Teller (BET) surface area and the degradation kinetic constant increased dramatically from 151 to 226m(2)/g and from 2.0x10(-2)min(-1) to 6.3x10(-2)min(-1), respectively. The Al-TiO2 nanotubes calcined above 600 degrees C exhibited enhanced MB degradation (100%) compared to that of the TiO2 nanotubes (27%) mainly due to the larger BET area.

引用

页码：124 / 128

页数：5

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