| Facile Synthesis, Characterization and Photocatalytic Activity of MWCNT-Supported Metal Sulfide Composites under Visible Light Irradiation |
| Lei Zhu, Ze-Da Meng, Won-Chun Oh |
| Department of Advanced Materials Science & Engineering, Hanseo University |
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| ABSTRACT |
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This paper reported a simple deposition-precipitation method, introducing the metal (Ni, Ag and Sn) and $Na_2S{cdot}5H_2O$ to preparedispersion metal sulfide nanoparticles on the surface of the Multi-walled carbon nanotube for synthesis of CNT-$M_xS_y$ ($NiS_2$, $Ag_2S$, SnS) composite photocatalysts. The characterization of the prepared CNT-$M_xS_y$ ($NiS_2$, $Ag_2S$, SnS) composites was performed by X-ray diffraction, scanning electron microscopy with energy dispersive X-ray analysis and BET analysis. Furthermore, the MB degradation rate constant for CNT-SnS composite was $5.68{times}10^{-3}$ under visible light irradiation, which was much higher than the corresponding values for other samples. The detailed formation and photocatalytic mechanism are also provided here. |
| Key words:
MWCNTs, Metal sulfide, XRD, FE-SEM, Deposition-precipitation |
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