Fabrication and performances of MWCNT/TiO2 composites derived from MWCNTs and titanium (IV) alkoxide precursors

Bulletin of materials science

Wonchun Oh¹  Mingliang Chen¹  Fengjun Zhang² 

[1] Department of Advanced Materials and Science Engineering, Hanseo University, Seosan-si, Chungnam-do 356-706, Korea$$Department of Advanced Materials and Science Engineering, Hanseo University, Seosan-si, Chungnam-do 356-706, KoreaDepartment of Advanced Materials and Science Engineering, Hanseo University, Seosan-si, Chungnam-do 356-706, Korea$$;Anhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture, Anhui Hefei 230022, P.R. China$$Anhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture, Anhui Hefei 230022, P.R. ChinaAnhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture, Anhui Hefei 230022, P.R. China$$

关键词: MWCNTs;    TEM;    photocatalytic decomposition;    bactericidal effect.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Multi-walled carbon nanotubes (MWCNTs)/TiO₂ composites were synthesized by solâ€�?�gel technique using titanium (IV) ð‘�??-butoxide (TNB), titanium (IV) isopropoxide (TIP) and titanium (IV) propoxide (TPP) as different titanium alkoxide precursors. The as-prepared composites were comprehensively characterized by BET surface area, SEM, XRD, EDX and UV-Vis absorption spectroscopy. The samples were evaluated for their photocatalytic activity towards the degradation of methylene blue (MB) under UV irradiation. The results indicated that the sample MPB had best excellent photocatalytic activity among the three kinds of samples. Furthermore, we also used piggery waste to determine the photocatalytic activity for the MWCNT/TiO₂ composites by using a chemical oxygen demand (COD) method. It seemed all of the samples have an excellent removal effect of COD. From the results of the bactericidal test, MWCNT/TiO₂ composites with sunlight had a greater effect on E. coli than any other experimental conditions.

【 授权许可】

Unknown