2019
DOI: 10.1016/j.cej.2018.09.223
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High-radiance LED-driven fluidized bed photoreactor for the complete oxidation of n-hexane in air

Abstract: This work presents a highly efficient photo-reactor configuration for VOC abatement. It consists of a fluidized bed made of commercial, easy to fluidize, transparent borosilicate glass beads coated with commercial TiO 2 nanoparticles (0.15 to 2.3 wt% loadings). Herein, we demonstrate that the use of high-radiance/low consumption UV-LEDs as irradiation sources with a deeper light penetration under fluidizing conditions facilitates the photocatalytic response to achieve the complete oxidation of VOCs. The role o… Show more

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Cited by 27 publications
(30 citation statements)
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“…Photocatalysis has emerged as a clean and sustainable alternative to mitigate VOCs and other pollutants emissions with the aid of different natural or artificial irradiation sources [10][11][12][13][14]. The use of semiconductors that can induce the generation of electron-hole pairs under irradiation as active species to react with molecules has been intensively studied, especially for the case of TiO2.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Photocatalysis has emerged as a clean and sustainable alternative to mitigate VOCs and other pollutants emissions with the aid of different natural or artificial irradiation sources [10][11][12][13][14]. The use of semiconductors that can induce the generation of electron-hole pairs under irradiation as active species to react with molecules has been intensively studied, especially for the case of TiO2.…”
Section: Introductionmentioning
confidence: 99%
“…Further research is still necessary to implement disruptive improvements that can pave the way for the regular use of solar light and/or low consumption artificial lights (i.e. Light-emitting diodes-LEDs, novel reactor configurations and so on) [9,10,[12][13][14][16][17][18][19][20][21][22][23][24][25]. In addition, it is also necessary to boost the development of novel photocatalytic materials that can overcome the inherent burdens of TiO2 and are able to take advantage of the full solar spectrum instead of the limited UV range attributed to TiO2 [26][27][28][29][30][31][32][33][34].…”
Section: Introductionmentioning
confidence: 99%
“…As a result, they have been widely used in applications such as functional coating, photovoltaics, energy storage and water purication. [25][26][27][28][29][30][31] In specic, TiO 2 nanomaterials are very suitable for sterilization and can degrade a wide range of organic pollutants, including dyes, pesticides and phenolic compounds. [32][33][34][35] However, despite these qualities, there are also problems associated with the usage of TiO 2 nanomaterials, especially nanoparticles in treating water.…”
Section: Introductionmentioning
confidence: 99%
“…In many cases, these reactions are carried out with the aid of other co‐reactants such as hydrogen peroxide or sodium borohydride with moderate to strong oxidant or reducing power, respectively . The most reported photocatalytic materials are semiconductors like titanium dioxide (TiO 2 ) or zinc oxide (ZnO), since they show relatively low price, great performance, chemical stability and long durability , , . However, their major downside is the specific requirement of ultraviolet (UV) wavelengths for their photoactivation, which is relatively more expensive to maintain and represents only around 5 % of the total solar radiation.…”
Section: Introductionmentioning
confidence: 99%