scholarly journals Innovative photocatalytic reactor for the degradation of VOCs and microorganism under simulated indoor air conditions: Cu-Ag/TiO2-based optical fibers at a pilot scale

2021 ◽  
Vol 411 ◽  
pp. 128622
Author(s):  
Wala Abou Saoud ◽  
Abdoulaye Kane ◽  
Pierre Le Cann ◽  
Anne Gerard ◽  
Lina Lamaa ◽  
...  
2012 ◽  
Vol 13 (1) ◽  
pp. 758-761
Author(s):  
Chih-Ming Ma ◽  
Gui-Bing Hong ◽  
Sih-Yu Liou ◽  
Chang-Tang Chang

2002 ◽  
Vol 5 (1) ◽  
Author(s):  
Andrew J. Feitz ◽  
T. David Waite ◽  
Brace H. Boyden ◽  
Gary J. Jones

AbstractA solar immobilized-catalyst photocatalytic reactor design and TiO


2014 ◽  
Vol 471 ◽  
pp. 136-141 ◽  
Author(s):  
Rongshu Zhu ◽  
Sainan Che ◽  
Xianbo Liu ◽  
Songxue Lin ◽  
Guilin Xu ◽  
...  

2018 ◽  
Vol 8 (10) ◽  
pp. 1920 ◽  
Author(s):  
Abdul Aziz ◽  
Muhammad Sajjad ◽  
Suho Kim ◽  
Md Saifuddin ◽  
Kwang Kim

In this work, the efficacy of volatile organic compounds (VOCs), such as benzene, toluene, ethylbenzene, and xylene, for the removal of indoor air in a heterogeneous photo-Fenton catalytic semi pilot reactor was investigated at room temperature. Fe-zeolite socony mobil (ZSM)-5 was used as the adsorptive catalytic material, which was coated on the polyethylene tubes as a solid support. The response of Fe-ZSM-5 to UV dry irradiation was investigated in terms of VOC degradation from the indoor air. Different coating materials were tested in order to achieve better binding and less pore blockage. Scanning electron microscope (SEM) micrographs of the Fe-ZSM-5 coated tubes were used for the morphological analysis of the tubes. A complete modular semi pilot reactor (12.51 L) was designed to accommodate the Fe-ZSM-5 coated tubes and UV lamps for UV irradiation, in order to achieve the degradation for VOC and the regeneration of the catalytic material. After completion of the setup, the plant design parameters, such as the linear velocity, surface volume loading rate (SVL), and space retention time (SRT), were calculated.


Author(s):  
Maoming Ren ◽  
Kalliat Valsaraj

Copper supported on inverse opal titania generated in-situ by sol-gel technology on optical fibers is effective in improving the photon utilization rate in a photocatalytic reactor. Inverse opal titania allows the slow-down of photons and improves the quantum efficiency for the photoreduction of gaseous CO2 to CH3OH in the presence of water vapor and UV light. Methanol production rates (0.0364 ±0.0014 µ mol.g-cat-1.h-1) were comparable to those of a conventional fiber optic reactor using Cu supported on unstructured titania, but required much lower light intensities. The production rate was independent of the feed rate indicating that the reaction is not mass-transfer controlled. The production rate increased with UV radiation intensity as I0.74 in contrast to I0.20 for unstructured titania. The inverse opal titania was predominantly anatase (101 crystalline phase), had a stop band gap of 307-397 nm and therefore capable of trapping UV light in the opal. Copper supported on inverse opal titania showed features similar to those of pure titania and Copper was present mostly as Cu0. XPS data showed that Cu was mostly dispersed on the surface.


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