• P-ISSN1225-0163
  • E-ISSN2288-8985
  • SCOPUS, ESCI, KCI

Article Detail

Home > Article Detail
  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Photocatalytic effect for the pitch-coated TiO2

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2006, v.19 no.4, pp.301-308



  • 159Downloaded
  • 308Viewed

Abstract

Pitch-coated anatase <TEX>$TiO_2$</TEX> typed was prepared by <TEX>$CCl_4$</TEX> solvent mixing method with different mixing ratios. Since the carbon layers derived from pitch on the <TEX>$TiO_2$</TEX> particles were porous, the pitch-coated <TEX>$TiO_2$</TEX> sample series showed a good adsorptivity and photo decomposition activity. The BET surface area depends on the pitch contents, which was made by changing the mixing ratios of the pitch with the raw <TEX>$TiO_2$</TEX>. The SEM results present to the characterization of porous texture on the pitch-coated <TEX>$TiO_2$</TEX> sample and pitch distributions on the surfaces for all the materials used. From XRD data, a weak and broad carbon peak of graphene with pristine anatase peaks were observed in the X-ray diffraction patterns for the pitch-coated <TEX>$TiO_2$</TEX>. The EDX spectra show the presence of C, O and S with strong Ti peaks. Most of these samples are richer in carbon and major Ti metal than any other elements. Finally, the excellent photocatalytic activity of pitchcoated <TEX>$TiO_2$</TEX> with Uv/Vis spectra between absorbance and time could be attributed to the homogeneous coated pitch on the external surface by <TEX>$CCl_4$</TEX> solvent method.

keywords
porous carbon, BET surface area, SEM, XRD, EDX, photocatalytic activity


Reference

1

Ollis, D. F, (1989) Photocatalysis fundamentals and applications, Wiley, New York

2

Li, F. B, (2001) Appl. Catal. A: Gen,

3

Datye, A. K, (1995) J. Solid State Chem.,

4

Fujishima, A, (1972) Nature,

5

Matos, J, (2000) J. Catal.,

6

Park, B. J, (1999) J. Colloid Interface Sci.,

7

Takeda, N, (1998) J. Catal.,

8

Yoshikawa, M, (1998) Appl. Catal. A: Gen.,

9

Parkand, S. J, (1999) J. Colloid Interface Sci.,

10

Zhang, Y, (1996) J. Solar Energy Eng.,

11

Ding, Z, (2001) Catal. Today.,

12

Negishi, N, (1999) Mater. Lett.,

13

Ahuja, S, (1996) J. Photochem. Photobiol. A-Chem.,

14

Nagaoka, S, (2002) J. Mol. Catal. A: Chem.,

15

Beydiun, D, (2002) J. Mol. Catal. A: Chem.,

16

Ding, Z, (2000) J. Colloid Interface Sci.,

17

Torimoto, T, (1996) Environ. Sci. Technol.,

18

Torimoto, T, (1997) J. Photochem. Photobiol. A-Chem.,

19

Kinoshita, K, (1998) Carbon-electrochemical and physicochemical properties, John Wiley, New York

20

Park, S. L, (2001) Carbon,

21

Zhang, X. W, (2005) Carbon,

22

Zhang, X. W, (2006) Carbon,

Analytical Science and Technology