Atık Karbon Keçenin Pirol ile Polimerizasyonu ve Katot Olarak Kullanılabilirliği

Abstract

Elektrokimyasal prosesler, atıksudaki karışık kirletici yükünü tek basamakta arıtabilmeleri ve kısa sürede yüksek giderim verimi sağlamaları nedeniyle yaygın olarak kullanılmaktadır. Son yıllarda bu arıtım yön-temleri ile ilgili en hızlı teknolojik gelişmeler yenilikçi elektrot üretimi alanında olup, birçok araştırmacı anot ve katot aktivitesini arttırmayı amaçlayan çalışmalar yapmaktadır. Bu çalışmaların bir diğer hedefi ise elektrot üretiminde en çok kullanılan ve yerkabuğundaki oranları her geçen gün azalan metallere alternatif olabilecek; elde edilmesi kolay, ucuz ve sürdürülebilir hammaddelerden elektrot eldesidir. Çalışmamızda kimyasal oksidatif polimerizasyon yöntemi kullanılarak atık karbon keçe (KK) üzerinde pirol monomeri-nin FeCl3.6H2O oksidantı ile polimerizyonu yapılmıştır. Polimerizasyon sonucunda polipirol kaplı karbon keçe (KK/PPy) elde edilmiştir. KK/PPy ve KK’nın elektrot olarak etkinliği elektrooksidasyon prosesinde boya giderimi üzerinden araştırılmıştır. Ayrıca pirol konsantrasyonu (0.05-1 M), oksidant konsantrasyonu (0.05-0.5 M) ve sıcaklığın (5-600C) katodun kütlesel artışı ve direnç azalışı üzerine etkisi incelenmiştir. En yüksek direnç azalışını sağlayan polimerizasyon koşulları 0.2 M pirol konsantrasyonu, 0.3 M FeCl3.6H2O konsantrasyonu ve sıcaklık 50C olarak bulunmuştur. Optimum koşullarda üretilen KK/PPy ve işlem gör-memiş KK elektrooksidasyon prosesinde katot olarak kullanılarak aktiviteleri birbiri ile karşılaştırılmış ve boya gideriminde KK/PPy’nin daha etkili olduğu görülmüştür. Ayrıca tekstil atığı olarak ortaya çıkan atık karbon keçeden elektrot malzemesi üretilmesi sürdürülebilir bir yötem olarak çevrenin ve doğal kaynakla-rın korunması ilkesine hizmet eden yenilikçi bir yaklaşımdır.

Keywords

• Elektrooksidasyon
• iletken polimerler
• karbon keçe
• kimyasal oksidatif polimerizasyon
• polipirol

Waste Carbon Felt Polymerization with Pyrrole and Usability as Cath-ode

Abstract

Electrochemical processes are widely used because they can remove the mixed pollutant load in wastewater in a single step and provide high removal efficiency in a short time. In recent years, the techno-logical developments related to these treatment methods have been in the field of innovative electrode production. Researchers are striving to increase anode and cathode activity. Another goal of these studies is to produce electrodes from easy-to-obtain, cheap and sustainable raw materials that can be an alternative to metals that are most used in electrode production and whose ratios are decreasing day by day in the earth's crust. In this study, polypyrrole (PPy) coated carbon felt was obtained by polymerizing pyrrole monomer with FeCl3.6H2O oxidant on carbon felt (KK) using the chemical oxidative polymerization meth-od (KK/PPy). The obtained KK/PPy and KK were investigated through dye removal in the electrooxidation process. The effects of pyrrole concentration (0.05-1 M), oxidant concentration (0.05-0.5 M), and temper-ature (5-600C) on the mass increase and resistance decrease of the cathode were investigated. The best polymerization conditions were found to be 0.2 M pyrrole concentration, 0.3 M FeCl3.6H2O concentration, and temperature 500C. KK/PPy produced under optimum conditions and untreated KK were used as cath-odes in the electrooxidation process and their activities were compared. It was seen that KK/PPy was more effective in dye removal. In addition, the production of electrode material from waste, which is generated from textile is an innovative approach that serves the principle of protecting the natural resources as a sustainable method.

Keywords

• Electrooxidation
• conductive polymers
• polypyrol
• carbone felt
• chemical oxidative polymerization.

References

1. Adamhasan, A.S. (2008). Poliester poli̇ani̇li̇n, pamuk poli̇ani̇li̇n kompozi̇t kumaşlarinin hazirlanmasi ve elektri̇ksel özelli̇kleri̇ni̇n ı̇ncelenmesi̇ (Yüksek lisans tezi). Erişim adresi: https://tez.yok.gov.tr/UlusalTezMerkezi
2. Antony, J., Niveditha, S. V., Gandhimathi, R., Ramesh, S.T. ve Nidheesh, P. V. (2020). Stabilized landfill leachate treatment by zero valent aluminium-acid system combined with hydrogen peroxide and persulfate based advanced oxidation process, Waste Management, (106), 1–11. https://doi.org/10.1016/j.wasman.2020.03.005
3. Avloni, J., Ouyang, M., Florio, L., Henn, A.R. ve Sparavigna, A. (2007). Shielding effectiveness evaluation of metallized ve polypyrrole-coated fabrics. Journal of Thermoplastic Composite Materials, 20(3), 241–254. https://doi.org/10.1177/0892705707076718
4. Cho, J.W. ve Jung, H. (1997). Electrically conducting high-strength aramid composite fibres prepared by vapour-phase polymerization of pyrrole. Journal of Materials Science, 32(20), 5371–5376. https://doi.org/10.1023/A:1018627113857
5. Cihaner, A. (2004). Electrochemical synthesis of crowned conducting polymers: Nature of radical cations in polymerization and mechanism of conductivity (Doktora tezi). Erişim adresi: https://tez.yok.gov.tr/UlusalTezMerkezi
6. Das, P.P., Sharma, M. ve Purkait, M.K. (2022). Recent progress on electrocoagulation process for wastewater treatment: A review. Separation and Purification Technology, (292), 121058. https://doi.org/10.1016/j.seppur.2022.121058
7. Du, X., Oturan, M.A., Zhou, M., Belkessa, N., Su, P., Cai, J., Trellu, C. ve Mousset, E. (2021). Nanostructured electrodes for electrocatalytic advanced oxidation processes: From materials preparation to mechanisms understanding and wastewater treatment applications. Applied Catalysis B: Environmental (296), 120332. https://doi.org/10.1016/j.apcatb.2021.120332
8. Duran, N.G., Karakişla, M., Aksu, L. ve Saçak, M. (2009). Conducting polyaniline/kaolinite composite: Synthesis, characterization and temperature sensing properties. Materials Chemistry and Physics 118(1), 93–98. https://doi.org/10.1016/j.matchemphys.2009.07.009

9. Filip, J., Cajthaml, T., Najmanova, P., Cernik, M. ve Zboril, R. (2020). Advanced Nano-Bio Technologies for Water and Soil Treatment. Springer. https://doi.org/10.1007/978-3-030-29840-1_22
10. Görücü, S., Gülümser, Ç., Sezer, M. ve Veli, S. (2022). Azo dye removal from aqueous solution by powder graphite: Investigation of parameter effects and optimization by Box-Behnken design. Journal of Advanced Research in Natural and Applied Sciences, (9), 56-64. https://doi.org/10.28979/jarnas.1110677
11. Gülümser, Ç. (2021). İleri oksidasyon yöntemleriyle boyar madde içeren sulu çözeltilerin yeni fotokatalitik elektrotlar ile arıtılabilirliğinin incelenmesi (Doktora tezi). Erişim adresi: https://tez.yok.gov.tr/UlusalTezMerkezi
12. Håkansson, E., Amiet, A. ve Kaynak, A. (2006). Electromagnetic shielding properties of polypyrrole/polyester composites in the 1-18 GHz frequency range. Synthetic Metals, 156(14–15), 917–925. https://doi.org/10.1016/j.synthmet.2006.05.010
13. Isgoren, M., Gengec, E. ve Veli, S. (2017). Evaluation of wet air oxidation variables for removal of organophosphorus pesticide malathion using Box-Behnken design. Water Science and Technology. 75(3), 619-628. https://doi.org/10.2166/wst.2016.479
14. Kang, T.S., Lee, S.W., Joo, J. ve Lee, J.Y. (2005). Electrically conducting polypyrrole fibers spun by electrospinning. Synthetic Metals, 153(1–3), 61–64. https://doi.org/10.1016/j.synthmet.2005.07.135
15. Kaynak, A., Najar, S.S. ve Foitzik, R.C. (2008). Conducting nylon, cotton and wool yarns by continuous vapor polymerization of pyrrole. Synthetic Metals, 158(1–2), 1–5. https://doi.org/10.1016/j.synthmet.2007.10.016
16. Kim, M.S., Kim, H.K., Byun, S.W., Jeong, S.H., Hong, Y.K., Joo, J.S., Song, K.T., Kim, J.K., Lee, C.J. ve Lee, J.Y. (2002). PET fabric/polypyrrole composite with high electrical conductivity for EMI shielding. Synthetic Metals, 126(2–3), 233–239. https://doi.org/10.1016/S0379-6779(01)00562-8
17. Kincal, D., Kumar, A., Child, A.D. ve Reynolds, J.R. (1998). Conductivity switching in polypyrrole-coated textile fabrics as gas sensors. Synthetic Metals, 92(1), 53–56. https://doi.org/10.1016/s0379-6779(98)80022-2
18. Kuhn, H.H., Child, A.D. ve Kimbrell, W.C. (1995). Toward real applications of conductive polymers. Synthetic Metals, 71(1–3), 2139–2142. https://doi.org/10.1016/0379-6779(94)03198-F
19. Kutanis, S., Karakişla, M., Akbulut, U. ve Saçak, M. (2007). The conductive polyaniline/poly(ethylene terephthalate) composite fabrics. Composites Part A: Applied Science and Manufacturing, 38(2), 609–614. https://doi.org/10.1016/j.compositesa.2006.02.008
20. Lei, J., Cai, Z. ve Martin, C.R. (1992). Effect of reagent concentrations used to synthesize polypyrrole on the chemical characteristics and optical and electronic properties of the resulting polymer. Synthetic Metals, 46, 53–69. https://doi.org/10.1016/j.reactfunctpolym.2013.06.008
21. Lin, T., Wang, L., Wang, X. ve Kaynak, A. (2005). Polymerising pyrrole on polyester textiles and controlling the conductivity through coating thickness. Thin Solid Films, 479(1–2), 77–82. https://doi.org/10.1016/j.tsf.2004.11.146
22. Lu, Y., Pich, A. ve Adler, H.J.P. (2004). Synthesis and characterization of polypyrrole dispersions prepared with different dopants. Macromolecular Symposia. 210, 411–417. https://doi.org/10.1002/masy.200450646
23. MacDiarmid, A.G. ve Epstein, A.J. (1994). The concept of secondary doping as applied to polyaniline. Synthetic Metals, 65(2–3), 103–116. https://doi.org/10.1016/0379-6779(94)90171-6
24. Martínez-Huitle, C.A., Rodrigo, M.A., Sirés, I. ve Scialdone, O. (2015). Single and coupled electrochemical processes and reactors for the abatement of organic water pollutants: A critical review. Chemical Reviews, 115(24), 13362–13407. https://doi.org/10.1021/acs.chemrev.5b00361
25. Martínez-Huitle, C.A., Rodrigo, M.A., Sirés, I. ve Scialdone, O. (2023). A critical review on latest innovations and future challenges of electrochemical technology for the abatement of organics in water. Applied Catalysis B: Environmental, 328(July 2022). https://doi.org/10.1016/j.apcatb.2023.122430
26. Myers, R.E. (1986). Chemical oxidative polymerization as a synthetic route to electrically conducting polypyrroles. Journal of Electronic Materials, 15(2), 61–69. https://doi.org/10.1007/BF02649904
27. Oh, K.W., Hong, K.H. ve Kim, S.H. (1999). Electrically conductive textiles by in situ polymerization of aniline. Journal of Applied Polymer Science, 74(8), 2094–2101. https://doi.org/10.1002/(SICI)1097-4628(19991121)
28. Omastova, M., Pionteck, J. ve Košina, S. (1996). Preparation and characterization of electrically conductive polypropylene/polypyrrole composites. European Polymer Journal, 32(6), 681–689. https://doi.org/10.1016/0014-3057(95)00206-5
29. Rehan Abbasi, A.M., Mangat, M.M., Baheti, V. ve Militky, J. (2012). Thermal properties of cotton fabric coated with polypyrrole. Journal of Fiber Bioengineering and Informatics, 5(2), 163–168. https://doi.org/10.3993/jfbi06201205
30. Saravanan, C., Shekhar, R.C. ve Palaniappan, S. (2006). Synthesis of polypyrrole using benzoyl peroxide as a novel oxidizing agent. Macromolecular Chemistry and Physics, 207(3), 342–348. https://doi.org/10.1002/macp.200500376
31. Sayar, N. (2008). PEM yakıt hücrelerinde platinsiz metal nanokompozit katalizörler (Yüksek lisans tezi). Erişim adresi: https://tez.yok.gov.tr/UlusalTezMerkezi
32. Veli, S., Arslan, A., Gülümser, C., Topkaya, E., Kurtkulak, H., Zeybek, S., Dimoglo, A, Işgören, M. (2019). Advanced treatment of pre-treated commercial laundry wastewater by adsorption process: Experimental design and cost evaluation. Journal of Ecological Engineering, 20(10), 165-171. https://doi.org/10.12911/22998993/113136
33. Vijayakumar, V., Saravanathamizhan, R. ve Balasubramanian, N. (2016). Electro oxidation of dye effluent in a tubular electrochemical reactor using TiO2/RuO2 anode. Journal of Water Process Engineering, (9), 155–160. https://doi.org/10.1016/j.jwpe.2015.12.006
34. Wagner, M. and Bauer, S. (2023). Industrial and municipal wastewater treatment with a focus on water-reuse. Basel, Switzerland. Erişim adresi: https://doi.org/10.3390/books978-3-0365-6255-1
35. Wang, jikui, Cai, G., Zhu, X. ve Zhou, X. (2012). Oxidative chemical polymerization of 3, 4-ethylenedioxythiophene and its applications in antistatic coatings. Journal of Applied Polymer Science, (124), 109–115. https://doi.org/10.1002/app.35045.