Modified microwave method for the synthesis of visible light-responsive TiO2/MWCNTs nanocatalysts

被引：25

作者：

Alosfur, Firas K. Mohamad ^{[1
,4
]}

Jumali, Mohammad Hafizuddin Haji ^{[1
]}

Radiman, Shahidan ^{[1
]}

Ridha, Noor J. ^{[1
,4
]}

Yarmo, Mohd Ambar ^{[2
]}

Umar, Akrajas Ali ^{[3
]}

机构：

[1] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Appl Phys, Bangi 43600, Selangor, Malaysia

[2] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Chem Sci & Food Technol, Bangi 43600, Selangor, Malaysia

[3] Univ Kebangsaan Malaysia, Inst Microengn & Nanoelect IMEN, Bangi 43600, Selangor, Malaysia

[4] Univ Baghdad, Coll Sci, Dept Phys, Baghdad, Iraq

来源：

NANOSCALE RESEARCH LETTERS | 2013年 / 8卷

关键词：

Microwave; TiO2/MWCNTs; Hybrid nanocatalysts; Photocatalytic; ASSISTED HYDROTHERMAL SYNTHESIS; PHOTOCATALYTIC DEGRADATION; METHYLENE-BLUE; SOLAR PHOTOCATALYSIS; TIO2; PHOTOCATALYSTS; RHODAMINE-B; WASTE-WATER; COMPOSITES; DYE; PHOTODEGRADATION;

D O I：

10.1186/1556-276X-8-346

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Recently, TiO2/multi-walled carbon nanotube (MWCNT) hybrid nanocatalysts have been a subject of high interest due to their excellent structures, large surface areas and peculiar optical properties, which enhance their photocatalytic performance. In this work, a modified microwave technique was used to rapidly synthesise a TiO2/MWCNT nanocatalyst with a large surface area. X-ray powder diffraction, field-emission scanning electron microscopy, transmission electron microscopy and Brunauer-Emmett-Teller measurements were used to characterise the structure, morphology and the surface area of the sample. The photocatalytic activity of the hybrid nanocatalysts was evaluated through a comparison of the degradation of methylene blue dye under irradiation with ultraviolet and visible light. The results showed that the TiO2/MWCNT hybrid nanocatalysts degraded 34.9% of the methylene blue (MB) under irradiation with ultraviolet light, whereas 96.3% of the MB was degraded under irradiation with visible light.

引用

页码：1 / 6

页数：6

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