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Conditional Optimization on the Photocatalytic Degradation Removal Efficiency of Formaldehyde using TiO2 – Nylon 6 Electrospun Composite Membrane

Taddao Pahasup-anan, Kowit Suwannahong, Piyaporn Kampeerapappun, Ratthapol Rangkupan, Wipada Dechapanya

Abstract


Since the outbreak of the coronavirus disease in 2019, many people have adjusted their work and lifestyle to the new normal, such as purchasing takeaway dishes or utilizing food delivery services more frequently. This causes individuals to spend more time indoors. The health, comfort, and well-being of building occupants are directly impacted by indoor air quality, which is a significant issue. The main objective of this study was to investigate the optimal conditions for the treatment of gaseous formaldehyde using TiO2 – Nylon 6 electrospun composite membrane via photocatalytic oxidation. Response surface methodology (RSM) model with the Box-Behnken Design (BBD) was applied for experimental design and statistical analysis. Three factors (catalyst dosage, initial formaldehyde concentration, and gas flow rate) affecting the removal efficiency were studied. Three sets of experiments were conducted to compare the formaldehyde removal efficiencies of the following processes; the adsorption process, the photolysis process, and the photocatalytic oxidation process. From the results, it is obvious that the photocatalytic oxidation process yielded the highest removal efficiency (83.43%) as compared to the other two processes. The mechanism of the formaldehyde photocatalytic oxidation process can be described using the simplified Langmuir-Hinshelwood equation. The reaction follows a pseudo-first order reaction, with a rate constant of 0.0058 min–1. The optimal conditions were found to be at 80.0%w/w catalyst dosage, 7.0 ppm initial formaldehyde concentration, and 1.5 L/min gas flow rate which resulted in an 84.54% removal efficiency after 420 minutes of treatment period. Thus, the application use of the TiO2 – Nylon 6 electrospun composite membrane equipped with the UV light source could be a promising alternative technology for indoor air treatment.

Keywords



[1]    S. N. Saleh, C. U. Lehmann, S. A. McDonald, M. A. Basit, and R. J. Medford, “Understanding public perception of coronavirus disease 2019 (COVID-19) social distancing on Twitter,” Infection Control & Hospital Epidemiology, vol. 42, no. 2, pp. 131–138, Aug. 2021, doi:  10.1017/ice.2020.406.

[2]    M. Somani, A. N. Srivastava, S. K. Gummadivalli, and A. Sharma, “Indirect implications of COVID-19 towards sustainable environment: An investigation in Indian context,” Bioresource Technology Reports, vol. 11, Sep. 2020, Art. no. 100491, doi: 10.1016/ j.biteb.2020.100491.

[3]    EPA, “Indoor Air Facts No.4 (revised) Sick Building Syndrome,” EPA, OH, 1991.

[4]    T. M. Mata, F. Felgueiras, A. A. Martins, H. Monteiro, M. P. Ferraz, G. M. Oliveira, M. F. Gabriel, and G. V. Silva, “Indoor air quality in elderly centers: Pollutants emission and health effects,” Environments, vol. 9, no.7, p. 86, Jul. 2022, doi: 10.3390/environments9070086.

[5]    EPA, “Risk evaluation for formaldehyde,” 2024. [Online]. Available: https://www.epa.gov/assessing- and-managing-chemicals-under-tsca/risk-evaluation-formaldehyde#:~:text=Due%20to%20its%20varied%20sources%2C%20people%20are%20routinely,and%20if%20it%20is%20absorbed%20into%20the%20skin

[6]    N. Liu, L. Fang, W. Liu, H. Kan, Z. Zhao, F. Deng, C. Huang, B. Zhao, X. Zeng, Y. Sun, H. Qian, J. Mo, C. Sun, J. Guo, X. Zheng, Z. Bu, L. B. Weschler, and Y. Zhang, “Health effects of exposure to indoor formaldehyde in civil buildings: A systematic review and meta-analysis on the literature in the past 40 years,” Building and Environment, vol. 233, Apr. 2023, Art. no. 110080, doi: 10.1016/j.buildenv.2023. 110080.

[7]    T. M. Mata, A. A. Martins, C. S. C. Calheiros, F. Villanueva, N. P. Alonso-Cuevilla, M. F. Gabriel, and G. V. Silva, “Indoor air quality: A review of cleaning technologies,” Environments, vol. 9, no. 9, Sep. 2022, doi: 10.3390/environments 9090118.

[8]    A. E. Cassano and O. M. Alfano, “Reaction engineering of suspended solid heterogeneous photocatalytic reactors,” Catalysis Today, vol. 58, no. 2, pp. 167–197, May 2000, doi: 10.1016/ S0920-5861(00)00251-0.

[9]    V. Héquet, C. Raillard, O. Debono, F. Thévenet, N. Locoge, and L. Le Coq, “Photocatalytic oxidation of VOCs at ppb level using a closed-loop reactor: The mixture effect,” Applied Catalysis B: Environmental, vol. 226, pp. 473–486, Jun. 2018, doi: 0.1016/j.apcatb.2017.12.041.

[10] J. Sydorenko, A. Mere, M. Krunks, M. Krichevskaya, and I.O. Acik, “Transparent TiO2 thin films with high photocatalytic activity for indoor air purification,” RSC Advances, vol. 12, no. 55, pp. 35531–35542, Dec. 2022, doi: 10.1039/D2RA06488J.

[11] E. Tapia-Brito, J. Riffat, Y. Wang, Y. Wang, A. M. Ghaemmaghami, C. M. Coleman, M.T. Erdinç, and S. Riffat, “Experimental study of the purification performance of a MopFan-based photocatalytic air cleaning system,” Building and Environment, vol. 240, Jul. 2023, Art. no. 110422, doi: 10.1016/j.buildenv.2023.110422.

[12] Z. Han, V. W. C. Chang, L. Zhang, M. S. Tse, O. K. Tan, and L. M. Hildemann, “Preparation of TiO2-coated polyester fiber filter by spray-coating and its photocatalytic degradation of gaseous formaldehyde,” Aerosol and Air Quality Research, vol. 12, no. 6, pp. 1327–1335, Dec. 2012, doi: 10.4209/aaqr.2012.05.0114.

[13] A. Jaworek and A. T. Sobczyk, “Electrospraying route to nanotechnology: An overview,” Journal of Electrostatics, vol. 66, no. 3–4, pp. 197–219, Mar. 2008, doi: 10.1016/j.elstat.2007.10.001.

[14] M. G. Ali, H. M. Mousa, F. Blaudez, M. S. Abd El-sadek, M. A. Mohamed, G. T. Abdel-Jaber, A. Abdal-hay, and S. Ivanovski, “Dual nanofiber scaffolds composed of polyurethane- gelatin/nylon 6- gelatin for bone tissue engineering,” Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 597, Jul. 2020, Art. no. 124817, doi: 10.1016 /j.colsurfa.2020.124817.

[15] T. Pahasup-anan, K. Suwannahong, W. Dechapanya, and R. Rangkupan, “Fabrication and photocatalytic activity of TiO2 composite membranes via simultaneous electrospinning and electrospraying process,” Journal of Environmental Sciences (China), vol. 72, pp. 13–24, Oct. 2018, doi: 10.1016/j.jes.2017.11.025.

[16] Z. Han, V.-W. Chang, X. Wang, T.-T. Lim, and L. Hildemann, “Experimental study on visible-light induced photocatalytic oxidation of gaseous formaldehyde by polyester fiber supported photocatalysts,” Chemical Engineering Journal, vol. 218, pp. 9–18, Feb. 2013, doi: 10.1016/ j.cej.2012.12.025.

[17] S. B. Kim and S. C. Hong, “Kinetic study for photocatalytic degradation of volatile organic compounds in air using thin film TiO2 photocatalyst,” Applied Catalysis B: Environmental, vol. 35, no. 4, pp. 305–315, Jan. 2002, doi: 10.1016/S0926-3373(01)00274-0.

[18] C. H. Ao, S. C. Lee, J. Z. Yu, and J. H. Xu, “Photodegradation of formaldehyde by photocatalyst TiO2: Effects on the presences of NO, SO2 and VOCs,” Applied Catalysis B: Environmental, vol. 54, no. 1, pp. 41–50, Nov. 2004, doi: 10.1016/j.apcatb.2004.06.004.

[19] H. Qi, D.-z. Sun, and G.-q. Chi, “Formaldehyde degradation by UV/TiO2/O3 process using continuous flow mode,” Journal of Environmental Sciences, vol. 19, no. 9, pp. 1136–1140, Jan. 2007, doi: 10.1016/S1001-0742(07)60185-5.

[20] G. Zhang, Z. Sun, Y. Duan, R. Ma, and S. Zheng, “Synthesis of nano-TiO2/diatomite composite and its photocatalytic degradation of gaseous formaldehyde,” Applied Surface Science, vol. 412, pp. 105–112, Aug. 2017, doi: 10.1016/ j.apsusc.2017.03.198.

[21] C. Si, J. Zhou, H. Gao, and G. Liu, “Photocatalytic degradation of formaldehyde in a fluidized bed with sound-magnetic assistance,” Advanced Powder Technology, vol. 24, no. 1, pp. 295–300, Jan. 2013, doi:  10.1016/j.apt.2012.07.005.

[22] G. Zhang, Z. Sun, X. Hu, A. Song, and S. Zheng, “Synthesis of BiOCl/TiO2–zeolite composite with enhanced visible light photoactivity,” Journal of the Taiwan Institute of Chemical Engineers, vol. 81, pp. 435–444, Dec. 2017, doi:  10.1016/j.jtice.2017.09.030.

[23] M.T. Laciste, M.D.G. de Luna, N.C. Tolosa, and M.-C. Lu, “Degradation of gaseous formaldehyde via visible light photocatalysis using multi-element doped titania nanoparticles,” Chemosphere, vol. 182, pp. 174–182, Sep. 2017, doi: 10.1016/ j.chemosphere.2017.05.022.

[24] B. M. da Costa Filho, A. L. P. Araujo, G. V. Silva, R. A. R. Boaventura, M. M. Dias, J. C. B. Lopes, and V. J. P. Vilar, “Intensification of heterogeneous TiO2 photocatalysis using an innovative micro-meso-structured-photoreactor for n-decane oxidation at gas phase,” Chemical Engineering Journal, vol. 310, pp. 331–341, Feb. 2017, doi: 10.1016/j.cej.2016.09.080.

[25] J. Ji, Y. Xu, H. Huang, M. He, S. Liu, G. Liu, R. Xie, Q. Feng, Y. Shu, Y. Zhan, R. Fang, X. Ye, and D.Y.C. Leung, “Mesoporous TiO2 under VUV irradiation: Enhanced photocatalytic oxidation for VOCs degradation at room temperature,” Chemical Engineering Journal, vol. 327, pp. 490–499, Nov. 2017, doi: 10.1016/j.cej.2017.06.130.

[26] T. N. Obee and R. T. Brown, “TiO2 photocatalysis for indoor air applications: effects of humidity and trace contaminant levels on the oxidation rates of formaldehyde, toluene, and 1,3-Butadiene,” Environmental Science & Technology, vol. 29, no. 5, pp. 1223–1231, May 1995, doi: 10.1021/es00005a013.

[27] H. Liu, Z. Lian, X. Ye, and W. Shangguan, “Kinetic analysis of photocatalytic oxidation of gas-phase formaldehyde over titanium dioxide,” Chemosphere, vol. 60, no. 5, pp. 630–635, Jun. 2005, doi: 10.1016/j.chemosphere.2005.01.039.

[28]  A. Hamisu, U. I. Gaya, and A. H. Abdullah, “Bi-template assisted sol-gel synthesis of photocatalytically-active mesoporous anatase TiO2 nanoparticles,” Applied Science and Engineering Progress, vol. 4, no. 3, pp. 313–327, 2021, doi: 10.14416/j.asep.2021.04.003.

[29] J. Zhang, D. Fu, Y. Xu, and C. Liu, “Optimization of parameters on photocatalytic degradation of chloramphenicol using TiO2 as photocatalyist by response surface methodology,” Journal of Environmental Sciences, vol. 22, no. 8, pp. 1281–1289, Aug. 2010, doi: 10.1016/S1001-0742(09)60251-5.

[30] S. Chinlee and W. Dechapanya, “COD removal efficiency of pararubber wastewater by ozonation using the central composite design model,” Thai Environmental Engineering Journal, vol. 36, no. 2, pp. 35-43, May-Aug. 2022.

[31] K. Suwannahong, S. Wongcharee, J. Kreanuarte, and T. Kreetachat, “Pre-treatment of acetic acid from food processing wastewater using response surface methodology via Fenton oxidation process for sustainable water reuse,” Journal of Sustainable Development of Energy, Water and Environment Systems, vol. 9, no. 4, pp. 1–18, Dec. 2021, doi: 10.13044/j.sdewes.d8.0363.

[32] A. Hadi, A. Niaei, A. Seifi, and Y. Rasoulzadeh, “The impact of operational factors on degradation of formaldehyde as a human carcinogen using Ag3PO4/TiO2 photocatalyst,” Health Promotion Perspectives, vol. 13, no.1, pp. 47–53, Apr. 2023, doi:  10.34172/hpp.2023.06.

[33] F. Khoshpasand, A. Nikpay, and M. Keshavarz, “Optimization of the photocatalytic oxidation process in toluene removal from air,” Pollution, vol. 9, no. 2, pp. 567–578, Apr. 2023, doi: 10.22059/POLL.2022.347254.1595.

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DOI: 10.14416/j.asep.2024.07.012

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