Hydrothermal synthesis and highly visible light-induced photocatalytic activity of acid functionalized MWCNTs as support for ZnS-photosensitized TiO2 catalysts

다국어 초록 (Multilingual Abstract)

Nanoscale ZnS-photosensitized TiO2 particles supported on acid functionalized multi-wall carbon nanotubes (MWCNTs) were prepared via a mild hydrothermal route. The new optical properties and porous structure of the as-prepared samples were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), BET surface area analysis,UV-vis DRS and X-ray diffraction (XRD). The photocatalytic activities of the composite catalysts were evaluated by the decomposition of an MB solution under visible light irradiation. The results indicate that the addition of an appropriate amount of MWCNTs as supports for TiO2 and ZnS efficiently inhibit the agglomeration of ZnS/TiO2 thus improving the dispersion of nanoparticles and the activity of visible photodegradation was remarkably improved.

참고문헌 (Reference)

1 M. Anpo, 216 : 505-516, 2003

2 X.D. Yu, 57 : 333-341, 2006

3 H. Irie, 107 : 5483-5486, 2003

4 L. Zhu, 1 : 69-76, 2010

5 W.C. Oh, 1 : 29-34, 2010

6 C. Lettmann, 32 : 215-227, 2001

7 S. Sakthivel, 42 : 4908-4911, 2003

8 S.Y. Treschev, 79 : 8-16, 2008

9 I. Kang, 80 : 81-87, 2008

10 A.C. Chen, 17 : 4530-4537, 2007

11 H, Su, 11 : 684-686, 2001

12 M. Bredol, 33 : 471-476, 1998

13 W. Tang, 280 : 221-226, 1996

14 P. Calandra, 160 : 9-13, 1999

15 X.L. Wang, 43 : 1665-1672, 2004

16 J. Dai, 55 : 383-387, 2002

17 S. Yanagida, 108 : 647-654, 1986

18 J.S. Hu, 44 : 1269-1272, 2005

19 H. Yin, 35 : 227-231, 2001

20 A. France, 161 : 545-550, 2009

21 T.H. Ji, 42 : 720-730, 2007

22 A. Kongkanand, 1 : 13-21, 2007

23 P. Serp, 253 : 337-358, 2003

24 Won-Chun Oh, "Synthesis and characterization of V–C60/TiO2 photocatalysts designed for degradation of methylene blue" 한국공업화학회 16 (16): 299-304, 2010

25 오원춘, "Synthesis and Characterization of CNT/TiO2 Composites Thermally Derivedfrom MWCNT and Titanium(IV) n-Butoxide" 대한화학회 29 (29): 159-164, 2008

26 오원춘, "Preparation with different mixing ratios of anatase to activated carbon and their photocatalytic performance" 세라믹공정연구센터 8 (8): 119-124, 2007