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Synergetic Effects of UV/Fe^(3+) Combined with Electrocatalysis for p-nitrophenol degradation

Chinese Chemical Letters 2002年第4期13卷 375-378页

作者： Ming Hua ZHOU Zu Cheng WU Da Hui WANG Department of Environmental Science and Engineering Zhejiang UniversityHangzhou 310027

Synergetic effects for p-nitrophenol degradation were observed in the combination of two-advanced oxidation processes, UV/Fe3+ and electrocatalysis. The enhancement of removal rate for p-nitrophenol and COD was around 123% and 278%, respectively. The possible contributions for the synergetic effects were the electrochemically regeneration of ferric ion and the role of the oxygen that formed on the anode.

关键词： UV/Fe3+ electrocatalysis synergetic effect p-nitrophenol degradation AOps.

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Ozonation with ultrasonic enhancement of p-nitrophenol wastewater

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2005年第5期6卷 319-323页

作者：徐献文史惠祥汪大翚 Department of Environmental Science and Engineering Zhejiang University Hangzhou 310027 China

Synergetic effects for p-nitrophenol degradation were observed in the ozonation with ultrasonic enhancement. The enhancements of removal rate for p-nitrophenol and TOC were around 116% and 294% respectively in comparison with the individual ultrasound and ozonation systems. The synergetic phenomenon is attributed to two physicochemical mechanisms: (1) Ultrasound decomposes ozone causing augmentation of the activity of free radicals; (2) Ultrasonic wave increased the concen- tration of O3 in solution because of ultrasonic dispersion.

关键词： Ozonolysis Sonolysis Synergetic effect p-nitrophenol degradation

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p-Doped Titania Xerogels as Efficient UV-Visible photocatalysts

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Journal of Materials Science and Chemical Engineering 2014年第8期2卷 17-32页

作者： Céline J.Bodson Sophie L.pirard René pirard Ludivine Tasseroul Catherine Bied Michel Wong Chi Man Benoit Heinrichs Stéphanie D.Lambert Laboratory of Chemical Engineering—Nanomaterials CatalysisElectrochemistryUniversity of LiegeLiegeBelgium Charles Gerhardt Montpellier Institute(UMR5253 CNRS-UM2-ENSCM-UM1) MontpellierFrance

In the present study, sol-gel process is used to synthesize p-doped TiO2 xerogels by the cogelation method of a functionalized p alkoxide, (NH2-(CH2)2-NH-(CH2)2-p(O)-(OC2H5)2) with Ti(OC3H7)4 in either 2-methoxyethanol or isopropanol. The phosphorus-doping improved the thermal stability of titania and decreased the phase transformation of anatase into rutile. This modification by phosphorus shifted the absorption edge of titania to the visible region as proved by Diffuse reflectance measurements, and thus offers the possibility to produce visible light effective TiO2 photocatalyst. The excellent photocatalytic activity of p-doped TiO2 xerogels compared to pure TiO2 could be explained by its high surface area and small TiO2-anatase crystallite size. From these results, it was proved by using three different models that phosphorus intrinsically influences the photocatalytic activity.

关键词： TiO_(2) xerogel phosphorus-Doping Sol-Gel p-nitrophenol degradation photocatalysis

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