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| Preparation of Ag Doped TiO2 Photocatalyst and Its Advanced Treatment for Paper Process Effluent |
| Received:May 04, 2019 |
| DOI：10.11980/j.issn.0254-508X.2019.08.015 |
| Key Words:Ag doping TiO2 photocatalyst CODCr removal rate paper wastewater |
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| Abstract:Ag doped TiO2 photocatalyst was prepared by sol-gel method. The prepared samples were characterized by XRD, UV-vis, SEM and EDS. The crystallinity and band gap of synthesized TiO2 decreased when the doping amount of Ag was increased. The photocatalyst was applied to treat washing and bleaching effluent in order to induce CODCr and chroma. This paper analyzed the effect degree on the consequence of different factors such as doping content of Ag, original pH value of washing and bleaching effluent, amount of photocatalyst and illumination time .The photocatalytic treatment test indicated that the photocatalytic degradation was optimum when the Ag doping amount was 3%, the pH value was 6 and the catalyst dosage was 0.6 g/L. The chroma and CODCr removal rate were 100% and 81.3% respectively after 12 hours radiation. |
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