Study of synergetic effect by surface discharge plasma/TiO2 combination for indoor air treatment: Sequential and continuous configurations at pilot scale
Study of synergetic effect by surface discharge plasma/TiO2 combination for indoor air treatment: Sequential and continuous configurations at pilot scale
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DOI：
10.1016/j.jphotochem.2015.05.007
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发表时间：
2015-09-01
影响因子：
4.3
通讯作者：
Wolbert, Dominique
中科院分区：
文献类型：
--
作者：
Assadi, Aymen Amine;Bouzaza, Abdelkrim;Wolbert, Dominique
在室温下，用阻挡放电（DBD）等离子体与TiO 2 + UV（TiO 2 + UV）耦合。考察并讨论了流速和丁醛初始浓度对丁醛分解及副产物分布的影响。这两种技术的结合导致了丁醛减排的增强相比，在中试规模从5至10米（3）小时（-1）的流量的单独的系统。由于组合过程的协同因子范围从1.13到1.27。以相同的方式，当与单独的DBD等离子体相比时，CO2选择性显著提高。本研究将介质阻挡放电等离子体系统与固定化二氧化钛催化剂系统相结合，对目标污染物进行氧化处理。实际上，列出了将DBD等离子体与光催化材料顺序地组合联合收割机的不同方式。中试规模的结果表明，当光催化剂放置在后放电，顺序耦合等离子体-光催化剂过程的性能得到改善，在分解，副产物的形成和能量产率。(C)2015 Elsevier B. V.版权所有。
barrier discharge (DBD) plasma coupled with photocatalysis (TiO2 + UV) at room temperature. Effects of flow rate and initial butyraldehyde concentration on the decomposition and the distribution of byproducts were examined and discussed. The combination of these two technologies led to an enhancement of butyraldehyde abatement compared to the separate systems at pilot scale from 5 to 10 m(3) h(-1) of flowrate. The synergy factor due to combination processes ranged from 1.13 to 1.27. In the same way, CO2 selectivity was significantly improved when compared to the DBD plasma alone. In this research, DBD plasma system and an immobilized TiO2 photocatalysis system is sequentially combined to oxidize the target pollutant. Indeed, different ways to combine sequentially DBD plasma with photocatalytic materials are listed. Results at pilot scale showed that when photocatalyst is placed in the post discharge, the performance of sequential coupling plasma-photocatalyst process is improved in term of decomposition, by-products formation and energy yield. (C) 2015 Elsevier B.V. All rights reserved.