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| Advanced Treatment of Papermaking Wastewater by Photocatalysis with MoS2/g-C3N4 Nano-composite Catalyst |
| Received:June 28, 2021 |
| DOI：10.11980/j.issn.0254-508X.2021.10.009 |
| Key Words:MoS2/g-C3N4 photocatalytic papermaking wastewater advanced treatment |
| Fund Project:四川省水利厅科研项目《改性田螺壳生物炭对水中三氯生（TCS）的吸附性能及机理研究》（SKY2019-05）。 |
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| Abstract:The MoS2/g-C3N4 nano-composite catalyst was prepared via combining MoS2 and g-C3N4 by N-methy1-2-pyrrolidone. The prepared nano-composite catalyst was characterized by X-ray diffraction （XRD）， X-ray photoelectron spectroscopy （XPS）， photoluminescence spectroscopy （PL） and scanning electron microscopy（SEM）. The nano-composite catalyst were used to advanced treatment by photocatalysis of papermaking wastewater. The results showed that a few MoS2 combined with g-C3N4 could improve the photocatalytic activity of nano-composite catalyst remarkably. The removal efficiency of CODCr and chroma in papermaking wastewater could reach 63.4% and 83.2%，respectively， when react time was 180 min， pH value was 5， dosage of 1.5% MoS2/g-C3N4 was 2 g/L. The enhanced photocatalytic activity of MoS2/g-C3N4 was probably due to the matched band structure between MoS2 and g-C3N4， which could decrease the recombination rate of photo-generated electron and hole to improve the photocatalytic activity of MoS2/g-C3N4 catalyst. |
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