A new photocatalyst, few-layer MoS grown in MgAl-LDH interlayers (MoS/MgAl-LDH), was prepared by a facile two-step hydrothermal synthesis. The structural and photocatalytic properties of the obtained material were characterized by several techniques including powder X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), photoluminescence spectroscopy (PL) and UV-vis absorption spectroscopy. The MoS/MgAl-LDH composite showed excellent photocatalytic performance for methyl orange (MO) degradation at low concentrations (50 mg L and 100 mg L). Furthermore, even for a MO solution concentration as high as 200 mg L, this composite also presented high degradation efficiency (>84%) and mineralization efficiency (>73%) at 120 min. The results show that the MoS/MgAl-LDH composite has great potential for application in wastewater treatment.
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| http://dx.doi.org/10.1039/c9ra03858b | DOI Listing |
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