Photocatalytic abatement of emerging pollutants in pure water and wastewater effluent by TiO2 and Ce-ZnO: degradation kinetics and assessment of transformation products†,Photochemical & Photobiological Sciences

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Photocatalytic abatement of emerging pollutants in pure water and wastewater effluent by TiO2 and Ce-ZnO: degradation kinetics and assessment of transformation products†
Photochemical & Photobiological Sciences ( IF 2.7 ) Pub Date : 2018-09-06 00:00:00 , DOI: 10.1039/c8pp00311d
Debora Fabbri _{1,

2,

3,

4} , María José López-Muñoz _{5,

6,

7,

8} , Alessandro Daniele _{1,

2,

3,

4} , Claudio Medana _{2,

3,

4,

9} , Paola Calza _{1,

2,

3,

4}

Affiliation

Here, the performances of two different catalysts, Ce-ZnO and TiO₂ synthetized in our laboratories, were compared with the commercial TiO₂-P25 for degradation of a mixture of seven emerging pollutants under UV irradiation. The investigation included monitoring pollutants abatement in Milli-Q water and in wastewater effluent and identifying their transformation products by HPLC-HRMS. Structural characterization of intermediates supported by data available from literature allowed elucidation of the transformation pathways occurring in the presence of all investigated catalysts in the wastewater effluent. Preliminary results showed a good removal efficacy for almost all examined contaminants, even in real water matrix (i.e. wastewater effluent). The type of matrix and catalyst affects the number and/or the abundance of transformation products, which suggests differences in their transformation routes.

中文翻译：

TiO ₂和Ce-ZnO光催化消除纯净水和废水中的新兴污染物：降解动力学和转化产物评估†

在这里，我们在实验室中合成的两种不同催化剂Ce-ZnO和TiO ₂的性能与商业TiO ₂ -P25在紫外线辐射下降解七种新兴污染物的混合物的性能进行了比较。调查包括监测Milli-Q水和废水中的污染物消减，并通过HPLC-HRMS识别其转化产物。中间体的结构表征得到了可从文献中获得的数据的支持，从而可以阐明在废水中存在所有研究的催化剂的情况下发生的转化途径。初步结果表明，即使在真实的水基质中，几乎所有被检查的污染物都具有良好的去除效果（即废水）。基质和催化剂的类型影响转化产物的数量和/或丰度，这表明它们转化途径的不同。

更新日期：2018-09-06

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