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Optimization of TiO2-based UV-LED Photocatalytic System for Mixed Dyes and Pharmaceutical Contaminants

1Key Laboratory of Nuclear Air Purification Technology, China Institute for Radiation Protection, Taiyuan, Shanxi, 030006, China

2School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China

3Dezhou Industrial Technology Research Institute of North University of China, Dezhou 253000, China

4 School of Chemistry and Chemical Engineering, North University of China, Taiyuan 030051, China

5 Key Laboratory of Nuclear Air Purification Technology, China Institute of Radiation Protection, Taiyuan, Shanxi, China

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Received: 10 Jul 2024; Revised: 3 Aug 2024; Accepted: 4 Aug 2024; Available online: 25 Aug 2024; Published: 30 Oct 2024.
Editor(s): Istadi Istadi
Open Access Copyright (c) 2024 by Authors, Published by BCREC Publishing Group
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
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Abstract

To optimize the working efficiency of the novel UV-LED system based on TiO2 photocatalyst, the influence mechanism of LED lamp arrangement, light source wavelength and working voltage on photocatalytic efficiency was investigated. Acid red 26 (AR 26), acetaminophen (ACT) and diclofenac (DCF) were used as contaminant targets of the photocatalytic system. LED lamp arrangement had almost no effect on the degradation of AR26. However, the degradation efficiency of ACT and DCF was improved under a higher light uniformity. The ACT concentration and DCF concentration at 360 min decreased by 14% and 15%, respectively, with increasing light distribution from 45% to 66.5%. The main reason for this discrepancy in effect was whether the rate-determining step of the degradation mechanism was affected by the light uniformity. The short wavelength and high working voltage of LEDs were conducive to the photocatalytic degradation of contaminants to a different degree. When the wavelength was reduced from 405nm to 365nm, the conversion of AR26, ACT, and DCF increased by 77%, 227%, and 106%, respectively. The conversion rates of AR26, ACT, and DCF increased by 28%, 54%, and 32%, respectively, with voltage increasing from 3 V to 4 V. The data of this work will provide support for optimizing the working efficiency of UV-LED systems based on TiO2 photocatalysts. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Keywords: TiO2 photocatalyst; UV-LED; Lamp arrangement; wavelength; working voltage
Funding: China National Nuclear Corporation

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  1. Dihom, H.R., Al-Shaibani, M.M., Mohamed, R.M.S.R., Al-Gheethi, A.A., Sharma, A., Khamidun, M.H.B. (2022). Photocatalytic degradation of disperse azo dyes in textile wastewater using green zinc oxide nanoparticles synthesized in plant extract: A critical review. Journal of Water Process Engineering, 47, 102705. DOI: 10.1016/j.jwpe.2022.1027050
  2. Agarwal, H., Goyal, D. (2022). Photocatalytic degradation of textile dyes using phycosynthesised ZnO nanoparticles. Inorganic Chemistry Communications, 142, 109676. DOI: 10.1016/j.inoche.2022.109676
  3. Thanh, N.T.P., Danh, N.T., Nguyen, T.Q., Giang, H.V., Chi, T.K., Giang, L.T.T., Trung, T.Q. (2024). Investigating for Photocatalytic Activity of Hybrid TiO2/Reduced Graphene Oxide and Application in Reducing VOCs. Bulletin of Chemical Reaction Engineering & Catalysis, 19(1), 79-85. DOI: 10.9767/bcrec.20042
  4. Dos Santos, A.B., Cervantes, F.J., Van Lier, J.B. (2007). Review paper on current technologies for decolourisation of textile wastewaters: perspectives for anaerobic biotechnology. Bioresource Technology, 98(12), 2369-2385. DOI: 10.1016/j.biortech.2006.11.013
  5. Srinivasan, S., Sadasivam, S.K. (2018). Exploring docking and aerobic-microaerophilic biodegradation of textile azo dye by bacterial systems. Journal of Water Process Engineering, 22, 180-191. DOI: 10.1016/j.jwpe.2018.02.004
  6. Ratnawati, R., Enjarlis, E., Husnil, Y.A., Christwardana, M., Slamet, S. (2020). Degradation of Phenol in Pharmaceutical Wastewater using TiO2/Pumice and O3/Active Carbon. Bulletin of Chemical Reaction Engineering & Catalysis, 15(1), 146-154. DOI: 10.9767/bcrec.15.1.4432.146-154
  7. Bu, J., Yuan, L., Zhang, N., Liu, D., Meng, Y., Peng, X. (2020). High-efficiency adsorption of methylene blue dye from wastewater by a thiosemicarbazide functionalized graphene oxide composite. Diamond and Related Materials, 101, 107604. DOI: 10.1016/j.diamond.2019.107604
  8. Thabede, P.M., Shooto, N.D., Naidoo, E.B. (2020). Removal of methylene blue dye and lead ions from aqueous solution using activated carbon from black cumin seeds. South African Journal of Chemical Engineering, 33(1), 39-50. DOI: 10.1016/j.sajce.2020.04.002
  9. Bayramoğlu, G., Arıca, M.Y. (2007). Biosorption of benzidine based textile dyes “Direct Blue 1 and Direct Red 128” using native and heat-treated biomass of Trametes versicolor. Journal of Hazardous Materials, 143(1-2), 135-143. DOI: 10.1016/j.jhazmat.2006.09.002
  10. Imran, M., Arshad, M., Negm, F., Khalid, A., Shaharoona, B., Hussain, S., Nadeem, S.M., Crowley, D.E. (2016). Yeast extract promotes decolorization of azo dyes by stimulating azoreductase activity in Shewanella sp. strain IFN4. Ecotoxicology and Environmental Safety, 124, 42-49. DOI: 10.1016/j.ecoenv.2015.09.041
  11. Ghanbari, F., Moradi, M. (2015). A comparative study of electrocoagulation, electrochemical Fenton, electro-Fenton and peroxi-coagulation for decolorization of real textile wastewater: electrical energy consumption and biodegradability improvement. Journal of Environmental Chemical Engineering, 3(1), 499-506. DOI: 10.1016/j.jece.2014.12.018
  12. Balouchi, H., Baziar, M., Dehghan, A., Alidadi, H., Shams, M. (2022). Combination of electrocoagulation and MOF adsorption systems for EBT removal from water. International Journal of Environmental Analytical Chemistry, 102(6), 1307-1317. DOI: 10.1080/03067319.2020.1737035
  13. Chiu, Y.-H., Chang, T.-F. M., Chen, C.-Y., Sone, M., Hsu, Y.-J. (2019). Mechanistic insights into photodegradation of organic dyes using heterostructure photocatalysts. Catalysts, 9(5), 430. DOI: 10.3390/catal9050430
  14. Chandrabose, G., Dey, A., Gaur, S.S., Pitchaimuthu, S., Jagadeesan, H., Braithwaite, N.S.J., Selvaraj, V., Kumar, V., Krishnamurthy, S. (2021). Removal and degradation of mixed dye pollutants by integrated adsorption-photocatalysis technique using 2-D MoS2/TiO2 nanocomposite. Chemosphere, 279, 130467. DOI: 10.1016/j.chemosphere.2021.130467
  15. Wang, Y., He, J., Wu, P., Luo, D., Yan, R., Zhang, H., Jiang, W. (2020). Simultaneous Removal of Tetracycline and Cu(II) in Hybrid Wastewater through Formic-Acid-Assisted TiO2 Photocatalysis. Industrial & Engineering Chemistry Research, 59(33), 15098-15108. DOI: 10.1021/acs.iecr.0c02443
  16. Rashed, M.N., El Taher, M.E.D., Fadlalla, S.M. (2022). Photocatalytic degradation of Rhodamine‐B dye using composite prepared from drinking water treatment sludge and nano TiO2. Environmental Quality Management, 31(3), 175-185. DOI: 10.1002/tqem.21772
  17. Riaz, S., Park, S.-J. (2020). An overview of TiO2-based photocatalytic membrane reactors for water and wastewater treatments. Journal of Industrial and Engineering Chemistry, 84, 23-41. DOI: 10.1016/j.jiec.2019.12.021
  18. Song, K., Mohseni, M., Taghipour, F. (2016). Application of ultraviolet light-emitting diodes (UV-LEDs) for water disinfection: A review. Water Research, 94, 341-349. DOI: 10.1016/j.watres.2016.03.003
  19. Yung, K.C., Liem, H., Choy, H., Cai, Z. (2014). Thermal investigation of a high brightness LED array package assembly for various placement algorithms. Applied Thermal Engineering, 63(1), 105-118. DOI: 10.1016/j.applthermaleng.2013.11.009
  20. Chen, Y., Hou, T., Pan, M. (2019). Comparative analysis between water-cooled and air-cooled heat dissipation in a high-power light-emitting diode chipset. Journal of Thermal Science and Engineering Applications, 11(6), 061002. DOI: 10.1115/1.4043004
  21. Seo, J.-H., Lee, M.-Y. (2018). Illuminance and heat transfer characteristics of high power LED cooling system with heat sink filled with ferrofluid. Applied Thermal Engineering, 143, 438-449. DOI: 10.1016/j.applthermaleng.2018.07.079
  22. Wang, C., Bai, H., Yi, N., Kang, X. (2023). Multi-dimensional optimization for a novel photocatalytic reactor incorporating the decolorization of azo dye and thermal management of ultraviolet light-emitting diode arrays. Energy Conversion and Management: X, 17, 100344. DOI: 10.1016/j.ecmx.2022.100344
  23. Giri, A.S., Golder, A.K. (2014). Fenton, Photo-Fenton, H2O2 Photolysis, and TiO2 Photocatalysis for Dipyrone Oxidation: Drug Removal, Mineralization, Biodegradability, and Degradation Mechanism. Industrial & Engineering Chemistry Research, 53(4), 1351-1358. DOI: 10.1021/ie402279q
  24. Eskandarian, M.R., Choi, H., Fazli, M., Rasoulifard, M.H. (2016). Effect of UV-LED wavelengths on direct photolytic and TiO2 photocatalytic degradation of emerging contaminants in water. Chemical Engineering Journal, 300, 414-422. DOI: 10.1016/j.cej.2016.05.049
  25. Moghni, N., Boutoumi, H., Khalaf, H., Makaoui, N., Colón, G. (2022). Enhanced photocatalytic activity of TiO2/WO3 nanocomposite from sonochemical-microwave assisted synthesis for the photodegradation of ciprofloxacin and oxytetracycline antibiotics under UV and sunlight. Journal of Photochemistry and Photobiology A: Chemistry, 428, 113848. DOI: 10.1016/j.jphotochem.2022.113848
  26. Wang, J., Lee, S.R., Zou, H. (2016). Effect of the surface curvature of the phosphor layer on the optical performance of a WLED. Paper presented at the 2016 13th China International Forum on Solid State Lighting (SSLChina)
  27. Institute, A.N.S. (1997). Electronic projction-fixed resolution projectors. In. New York: National Association of Photographic Manufacturers, Inc
  28. Al-Zahrani, S. A., Patil, M. B., Mathad, S. N., Patil, A. Y., Al Otaibi, A., Masood, N., Mansour, D., Kha, A., Gupta, V., Topare, N.S., Somya, A., Ayyar, M. (2023). Photocatalytic Azo Dye Degradation Using Graphite Carbon Nitride Photocatalyst and UV-A Irradiation. Crystals, 13(4), 577. DOI: 10.3390/cryst13040577

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