Year 2023,
Volume: 7 Issue: 4, 316 - 324, 31.12.2023
Mustafa Seyrek
,
Filiz Boran
,
Merve Okutan
Project Number
MUH19001.19.002
References
- [1] Karagoz M, Uysal C. Environmental Pollution Cost Analyses of a Compression Ignition Diesel Engine Fuelled With Tire Pyrolytic Oil-Diesel Blends. Int J Automot Sci Technol. 2020;4(4):281-288.
- [2] Hassan NS, Jalil AA, Khusnun NF et al. Extra-modification of zir-conium dioxide for potential photocatalytic applications to-wards environmental remediation: A critical review. J Environ Manage. 2023;327:116869.
- [3] Wang W, Lv Y, Liu H, Cao Z. Recent advances in application of polypyrrole nanomaterial in water pollution control. Sep Pu-rif Technol. 2024;330:125265.
- [4] Pirzada BM, Mir NA, Qutub N, Mehraj O, Sabir S, Muneer M. Synthesis, characterization and optimization of photocatalytic activity of TiO2/ZrO2 nanocomposite heterostructures. Mater Sci Eng B. 2015;193:137–145.
- [5] Krishnan A, Swarnalal A, Das D, Krishnan M, Saji VS, Shibli SMA. A review on transition metal oxides based photocatalysts for degradation of synthetic organic pollutants. J Environ Sci. 2024;139:389–417.
- [6] Mohtashami R, Shang JQ. Treatment of automotive paint wastewater in continuous-flow electroflotation reactor. J Clean Prod. 2019;218:335–346.
- [7] Mohtashami R, Shang JQ, Xu Y. Treatment of automotive paint wastewater using electroflotation: kinetic study, influencing factors and data analysis. Environ Process. 2018;5(3):577–591.
- [8] Khan K, Saeed M, Awad SA et al. Facile synthesis of zirconia supported nanomaterials for efficient photocatalytic applica-tions. J Chinese Chem Soc. 2023;70(1):46–57.
- [9] Kumari H, Sonia, Suman et al. A review on photocatalysis used for wastewater treatment: dye degradation. Water Air Soil Pollut. 2023;234:349.
- [10] Nair K S, Manu B, Azhoni A. Sustainable treatment of paint industry wastewater: Current techniques and challenges. J Environ Manage. 2021;296:113105.
- [11] Sampurnam S, Muthamizh S, Balachdran S, Narayanan V. Fabrication of hybrid polyaniline – Polyoxometalate deco-rated with ZrO2 ternary nanocomposites with excellent visible light driven photocatalytic performance. J Photochem Photobiol A Chem. 2023;443:114844.
- [12] Ramamoorthy S, Das S, Balan R, Lekshmi IC. Tuning donor-acceptor strength through preferential binding in meso-porous ZrO2-TiO2 nanocomposite as mechanistic approach for enhanced photocatalytic degradation of Alizarin Yellow GG dye. J Alloys Compd. 2022;898:162769.
- [13] Ozkazanc H. Novel nanocomposites based on polythio-phene and zirconium dioxide. Mater Res Bull. 2016;73(2):226–232.
- [14] Teymourian H, Salimi A, Firoozi S, Korani A, Soltanian S. One-pot hydrothermal synthesis of zirconium dioxide nano-particles decorated reduced graphene oxide composite as high performance electrochemical sensing and biosensing platform. Electrochim Acta. 2014;143:196–206.
- [15] Sagadevan S, Podder J, Das I. Hydrothermal synthesis of zirconium oxide nanoparticles and its characterization. J Mater Sci Mater Electron. 2016;27(6):5622–5627.
- [16] Majnis MF, Yee OC, Mohd Adnan MA, Yusof Hamid MR, Ku Shaari KZ, Muhd Julkapli N. Photoactive of Chitosan-ZrO2/TiO2 thin film in catalytic degradation of malachite green dyes by solar light. Opt Mater. 2022;124:111967.
[17] Basahel SN, Ali TT, Mokhtar M, Narasimharao K. Influ-ence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange. Nanoscale Res Lett. 2015;10(1).
- [18] Vinayagam R, Singhania B, Murugesan G et al. Photo-catalytic degradation of methylene blue dye using newly syn-thesized zirconia nanoparticles. Environ Res. 2022;214:113785.
- [19] Kumari N, Anand V, Sareen S et al. Synthesis of low-band gap porous zirconia nanoparticles via greener-route: Mechanistic investigation and their applications. Mater Chem Phys. 2023;294:127004.
- [20] Sai Saraswathi V, Santhakumar K. Photocatalytic activity against azo dye and cytotoxicity on MCF-7 cell lines of zirco-nium oxide nanoparticle mediated using leaves of Lagerstroe-mia speciosa. J Photochem Photobiol B Biol. 2017;169:47–55.
- [21] Boran F, Okutan M. Synthesis optimization of ZrO2 nanostructures for photocatalytic applications. Turkish J Chem. 2023;47(2):448–464.
- [22] Sultan M, Waheed A, Bibi I, Islam A. Ecofriendly reduc-tion of methylene blue with polyurethane catalyst. Int J Polym Sci. 2019;2019: 3168618.
- [23] Desai KR, Pathan AA, Bhasin CP. Synthesis, characteri-zation of cadmium sulphide nanoparticles and its application as photocatalytic degradation of Congored. Int J Nanomater Chem. 2017;3(2):39–43.
- [24] Seema H, Christian Kemp K, Chandra V, Kim KS. Gra-phene-SnO2 composites for highly efficient photocatalytic deg-radation of methylene blue under sunlight. Nanotechnology. 2012;23(35).
- [25] Navío JA, Hidalgo MC, Colón G, Botta SG, Litter MI. Preparation and physicochemical properties of ZrO2 and Fe/ZrO2 prepared by a sol-gel technique. Langmuir. 2001;17(1):202–210.
- [26] Hernández S, Gionco C, Husak T et al. Insights into the sunlight-driven water oxidation by Ce and Er-doped ZrO2. Front Chem. 2018;6:368.
- [27] Singh H, Sunaina, Yadav KK, Bajpai VK, Jha M. Tuning the bandgap of m-ZrO2 by incorporation of copper nanoparti-cles into visible region for the treatment of organic pollutants. Mater Res Bull. 2020;123:110698.
- [28] Gionco C, Paganini MC, Giamello E, Sacco O, Vaiano V, Sannino D. Rare earth oxides in zirconium dioxide: How to turn a wide band gap metal oxide into a visible light active pho-tocatalyst. J Energy Chem. 2017;26(2):270–276.
- [29] García-Mendoza C, Oros-Ruiz S, Ramírez-Rave S, Mo-rales-Mendoza G, López R, Gómez R. Synthesis of Bi2S3 nano-rods supported on ZrO2 semiconductor as an efficient photo-catalyst for hydrogen production under UV and visible light. J Chem Technol Biotechnol. 2017;92(7):1503–1510.
- [30] Lops C, Ancona A, Di Cesare K et al. Sonophotocatalyt-ic degradation mechanisms of Rhodamine B dye via radicals generation by micro- and nano-particles of ZnO. Appl Catal B Environ. 2019;243(July 2018):629–640.
- [31] Chen F, Zhao J, Hidaka H. Highly selective deethylation of Rhodamine B: Adsorption and photooxidation pathways of the dye on the TiO2/SiO2 composite photocatalyst. Int J Photo-energy. 2003;5(4):209–217.
- [32] Vasiljevic ZZ, Dojcinovic MP, Vujancevic JD et al. Pho-tocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol-gel method. R Soc Open Sci. 2020;7(9).
- [33] De Mendonça VR, Mourão HAJL, Malagutti AR, Ribeiro C. The role of the relative dye/photocatalyst concentration in TiO2 assisted photodegradation process. Photochem Photobiol. 2014;90(1):66–72.
- [34] Mohammadi MR, Fray DJ. Synthesis and characterisa-tion of nanosized TiO2-ZrO2 binary system prepared by an aqueous sol-gel process: Physical and sensing properties. Sen-sors Actuators, B Chem. 2011;155(2):568–576.
- [35] Arantes TM, Mambrini GP, Stroppa DG et al. Stable colloidal suspensions of nanostructured zirconium oxide syn-thesized by hydrothermal process. J Nanoparticle Res. 2010;12(8):3105–3110.
- [36] Nazim M, Khan AAP, Asiri AM, Kim JH. Exploring Rapid Photocatalytic Degradation of Organic Pollutants with Porous CuO Nanosheets: Synthesis, Dye Removal, and Kinetic Studies at Room Temperature. ACS Omega. 2021;6(4):2601–2612.
- [37] Wang X, Patel RL, Liang X. Significant improvement in TiO2 photocatalytic activity through controllable ZrO2 deposi-tion. RSC Adv. 2018;8(45):25829–25834.
- [38] Zhao J, Ge S, Pan D et al. Solvothermal synthesis, char-acterization and photocatalytic property of zirconium dioxide doped titanium dioxide spinous hollow microspheres with sun-flower pollen as bio-templates. J Colloid Interface Sci. 2018;529:111–121.
- [39] Keiteb AS, Saion E, Zakaria A, Soltani N. Structural and optical properties of zirconia nanoparticles by thermal treat-ment synthesis. J Nanomater. 2016;2016(4):1–6.
- [40] Chang SM, Doong RA. Interband transitions in sol-gel-derived ZrO2 films under different calcination conditions. Chem Mater. 2007;19(19):4804–4810.
- [41] Peymani Forooshani R, Poursalehi R, Yourdkhani A. Optical and structural properties of colloidal zirconia nanopar-ticles prepared by arc discharge in liquid. AIP Conf Proc. 2018;1920:020028-1–020028-6.
- [42] Herrera G, Montoya N, Doménech-Carbó A, Alarcón J. Synthesis, characterization and electrochemical properties of iron-zirconia solid solution nanoparticles prepared using a sol-gel technique. Phys Chem Chem Phys. 2013;15(44):19312–19321.
- [43] Ciuparu D, Ensuque A, Shafeev G, Bozon-Verduraz F. Synthesis and apparent bandgap of nanophase zirconia. J Mater Sci Lett. 2000;19(11):931–933.
- [44] Rani M, Shanker U. Sun-light driven rapid photocatalytic degradation of methylene blue by poly(methyl methacry-late)/metal oxide nanocomposites. Colloids Surfaces A Physi-cochem Eng Asp. 2018;559:136–147.
- [45] Garcia JC, Scolfaro LMR, Lino AT et al. Structural, elec-tronic, and optical properties of ZrO2 from ab initio calculations. J Appl Phys. 2006;100(10).
- [46] Hussain SA, Lkhayatt A, Adel H Omran, Mahdi EA. Effect of co-dopant on the structural and optical properties of nanocrystalline ZrO2 thin films prepared by spray pyrolysis technique. J Appl Phys. 2016;8(5):44–49.
- [47] Mahanthappa M, Kottam N, Yellappa S. Enhanced pho-tocatalytic degradation of methylene blue dye using CuS–CdS nanocomposite under visible light irradiation. Appl Surf Sci. 2019;475:828–838.
- [48] Lv T, Pan L, Liu X, Lu T, Zhu G, Sun Z. Enhanced pho-tocatalytic degradation of methylene blue by ZnO-reduced gra-phene oxide composite synthesized via microwave-assisted re-action. J Alloys Compd. 2011;509(41):10086–10091.
- [49] Wang Z, Srivastava V, Iftekhar S, Ambat I, Sillanpää M. Fabrication of Sb2O3/PbO photocatalyst for the UV/PMS assist-ed degradation of carbamazepine from synthetic wastewater. Chem Eng J. 2018;354:663–671.
- [50] Zaborowska M, Smok W, Tanski T. Electrospinning synthesis and characterization of zirconia nanofibers annealed at differ-ent tempera-tures. Appl Surf Sci. 2023;615:156342.
- [51] Chelliah P, Wabaidur SM, Sharma HP, Majdi HS, Smait DA, Najm MA, et. al. Photocatalytic organic contaminant degrada-tion of green synthesized ZrO2 NPs and their antibacterial activities. Separations. 2023;10:156.
Treatment of Automotive Paint Wastewater: Photocatalytic degradation of methylene blue using semi-conductive ZrO2
Year 2023,
Volume: 7 Issue: 4, 316 - 324, 31.12.2023
Mustafa Seyrek
,
Filiz Boran
,
Merve Okutan
Abstract
Addressing water pollution, particularly in the automotive industry's painting processes, is vital due to its significant environmental impact, and the use of photocatalysis, an environmentally friendly and energy-efficient advanced oxidation method, holds promise for removing non-biodegradable organic dyes from wastewater. In this study, the use of semiconductor ZrO2 nanoparticles in the photocatalytic degradation of pollutants in wastewater under UV light was investigated. Zeta potential, Brunauer–Emmett–Teller (BET) surface area and UV-Vis absorption spectroscopy analyses were performed on the ZrO2 nanoparticle synthesized under optimized experimental conditions. ZrO2 nanoparticles synthesized under the optimized experimental conditions exhibited a high specific surface area (51.793 m2/g). ZrO2 nanoparticles had strong absorption in the visible light region, and the energy band gap was estimated to be approximately 3.062 eV. The photocatalytic activity was evaluated by the degradation of methylene blue under UV light (366 nm). The effects of parameters such as the amount of catalyst, concentration and pH of the dye solution, the wavelength of the UV light source used (366 and 254 nm) and the type of test environment on the removal efficiency of methylene blue were investigated. ZrO2 nanoparticles showed a high degradation efficiency of 91% in a strong alkaline environment, which may be the result of the facilitated formation of –OH radicals due to the increased concentration of hydroxyl ions.
Supporting Institution
Hitit University
Project Number
MUH19001.19.002
Thanks
This study was supported by the Hitit University Scientific Research Project in frame of the project code of MUH19001.19.002 as researchers, we thank the Hitit Univer-sity/TURKEY.
References
- [1] Karagoz M, Uysal C. Environmental Pollution Cost Analyses of a Compression Ignition Diesel Engine Fuelled With Tire Pyrolytic Oil-Diesel Blends. Int J Automot Sci Technol. 2020;4(4):281-288.
- [2] Hassan NS, Jalil AA, Khusnun NF et al. Extra-modification of zir-conium dioxide for potential photocatalytic applications to-wards environmental remediation: A critical review. J Environ Manage. 2023;327:116869.
- [3] Wang W, Lv Y, Liu H, Cao Z. Recent advances in application of polypyrrole nanomaterial in water pollution control. Sep Pu-rif Technol. 2024;330:125265.
- [4] Pirzada BM, Mir NA, Qutub N, Mehraj O, Sabir S, Muneer M. Synthesis, characterization and optimization of photocatalytic activity of TiO2/ZrO2 nanocomposite heterostructures. Mater Sci Eng B. 2015;193:137–145.
- [5] Krishnan A, Swarnalal A, Das D, Krishnan M, Saji VS, Shibli SMA. A review on transition metal oxides based photocatalysts for degradation of synthetic organic pollutants. J Environ Sci. 2024;139:389–417.
- [6] Mohtashami R, Shang JQ. Treatment of automotive paint wastewater in continuous-flow electroflotation reactor. J Clean Prod. 2019;218:335–346.
- [7] Mohtashami R, Shang JQ, Xu Y. Treatment of automotive paint wastewater using electroflotation: kinetic study, influencing factors and data analysis. Environ Process. 2018;5(3):577–591.
- [8] Khan K, Saeed M, Awad SA et al. Facile synthesis of zirconia supported nanomaterials for efficient photocatalytic applica-tions. J Chinese Chem Soc. 2023;70(1):46–57.
- [9] Kumari H, Sonia, Suman et al. A review on photocatalysis used for wastewater treatment: dye degradation. Water Air Soil Pollut. 2023;234:349.
- [10] Nair K S, Manu B, Azhoni A. Sustainable treatment of paint industry wastewater: Current techniques and challenges. J Environ Manage. 2021;296:113105.
- [11] Sampurnam S, Muthamizh S, Balachdran S, Narayanan V. Fabrication of hybrid polyaniline – Polyoxometalate deco-rated with ZrO2 ternary nanocomposites with excellent visible light driven photocatalytic performance. J Photochem Photobiol A Chem. 2023;443:114844.
- [12] Ramamoorthy S, Das S, Balan R, Lekshmi IC. Tuning donor-acceptor strength through preferential binding in meso-porous ZrO2-TiO2 nanocomposite as mechanistic approach for enhanced photocatalytic degradation of Alizarin Yellow GG dye. J Alloys Compd. 2022;898:162769.
- [13] Ozkazanc H. Novel nanocomposites based on polythio-phene and zirconium dioxide. Mater Res Bull. 2016;73(2):226–232.
- [14] Teymourian H, Salimi A, Firoozi S, Korani A, Soltanian S. One-pot hydrothermal synthesis of zirconium dioxide nano-particles decorated reduced graphene oxide composite as high performance electrochemical sensing and biosensing platform. Electrochim Acta. 2014;143:196–206.
- [15] Sagadevan S, Podder J, Das I. Hydrothermal synthesis of zirconium oxide nanoparticles and its characterization. J Mater Sci Mater Electron. 2016;27(6):5622–5627.
- [16] Majnis MF, Yee OC, Mohd Adnan MA, Yusof Hamid MR, Ku Shaari KZ, Muhd Julkapli N. Photoactive of Chitosan-ZrO2/TiO2 thin film in catalytic degradation of malachite green dyes by solar light. Opt Mater. 2022;124:111967.
[17] Basahel SN, Ali TT, Mokhtar M, Narasimharao K. Influ-ence of crystal structure of nanosized ZrO2 on photocatalytic degradation of methyl orange. Nanoscale Res Lett. 2015;10(1).
- [18] Vinayagam R, Singhania B, Murugesan G et al. Photo-catalytic degradation of methylene blue dye using newly syn-thesized zirconia nanoparticles. Environ Res. 2022;214:113785.
- [19] Kumari N, Anand V, Sareen S et al. Synthesis of low-band gap porous zirconia nanoparticles via greener-route: Mechanistic investigation and their applications. Mater Chem Phys. 2023;294:127004.
- [20] Sai Saraswathi V, Santhakumar K. Photocatalytic activity against azo dye and cytotoxicity on MCF-7 cell lines of zirco-nium oxide nanoparticle mediated using leaves of Lagerstroe-mia speciosa. J Photochem Photobiol B Biol. 2017;169:47–55.
- [21] Boran F, Okutan M. Synthesis optimization of ZrO2 nanostructures for photocatalytic applications. Turkish J Chem. 2023;47(2):448–464.
- [22] Sultan M, Waheed A, Bibi I, Islam A. Ecofriendly reduc-tion of methylene blue with polyurethane catalyst. Int J Polym Sci. 2019;2019: 3168618.
- [23] Desai KR, Pathan AA, Bhasin CP. Synthesis, characteri-zation of cadmium sulphide nanoparticles and its application as photocatalytic degradation of Congored. Int J Nanomater Chem. 2017;3(2):39–43.
- [24] Seema H, Christian Kemp K, Chandra V, Kim KS. Gra-phene-SnO2 composites for highly efficient photocatalytic deg-radation of methylene blue under sunlight. Nanotechnology. 2012;23(35).
- [25] Navío JA, Hidalgo MC, Colón G, Botta SG, Litter MI. Preparation and physicochemical properties of ZrO2 and Fe/ZrO2 prepared by a sol-gel technique. Langmuir. 2001;17(1):202–210.
- [26] Hernández S, Gionco C, Husak T et al. Insights into the sunlight-driven water oxidation by Ce and Er-doped ZrO2. Front Chem. 2018;6:368.
- [27] Singh H, Sunaina, Yadav KK, Bajpai VK, Jha M. Tuning the bandgap of m-ZrO2 by incorporation of copper nanoparti-cles into visible region for the treatment of organic pollutants. Mater Res Bull. 2020;123:110698.
- [28] Gionco C, Paganini MC, Giamello E, Sacco O, Vaiano V, Sannino D. Rare earth oxides in zirconium dioxide: How to turn a wide band gap metal oxide into a visible light active pho-tocatalyst. J Energy Chem. 2017;26(2):270–276.
- [29] García-Mendoza C, Oros-Ruiz S, Ramírez-Rave S, Mo-rales-Mendoza G, López R, Gómez R. Synthesis of Bi2S3 nano-rods supported on ZrO2 semiconductor as an efficient photo-catalyst for hydrogen production under UV and visible light. J Chem Technol Biotechnol. 2017;92(7):1503–1510.
- [30] Lops C, Ancona A, Di Cesare K et al. Sonophotocatalyt-ic degradation mechanisms of Rhodamine B dye via radicals generation by micro- and nano-particles of ZnO. Appl Catal B Environ. 2019;243(July 2018):629–640.
- [31] Chen F, Zhao J, Hidaka H. Highly selective deethylation of Rhodamine B: Adsorption and photooxidation pathways of the dye on the TiO2/SiO2 composite photocatalyst. Int J Photo-energy. 2003;5(4):209–217.
- [32] Vasiljevic ZZ, Dojcinovic MP, Vujancevic JD et al. Pho-tocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol-gel method. R Soc Open Sci. 2020;7(9).
- [33] De Mendonça VR, Mourão HAJL, Malagutti AR, Ribeiro C. The role of the relative dye/photocatalyst concentration in TiO2 assisted photodegradation process. Photochem Photobiol. 2014;90(1):66–72.
- [34] Mohammadi MR, Fray DJ. Synthesis and characterisa-tion of nanosized TiO2-ZrO2 binary system prepared by an aqueous sol-gel process: Physical and sensing properties. Sen-sors Actuators, B Chem. 2011;155(2):568–576.
- [35] Arantes TM, Mambrini GP, Stroppa DG et al. Stable colloidal suspensions of nanostructured zirconium oxide syn-thesized by hydrothermal process. J Nanoparticle Res. 2010;12(8):3105–3110.
- [36] Nazim M, Khan AAP, Asiri AM, Kim JH. Exploring Rapid Photocatalytic Degradation of Organic Pollutants with Porous CuO Nanosheets: Synthesis, Dye Removal, and Kinetic Studies at Room Temperature. ACS Omega. 2021;6(4):2601–2612.
- [37] Wang X, Patel RL, Liang X. Significant improvement in TiO2 photocatalytic activity through controllable ZrO2 deposi-tion. RSC Adv. 2018;8(45):25829–25834.
- [38] Zhao J, Ge S, Pan D et al. Solvothermal synthesis, char-acterization and photocatalytic property of zirconium dioxide doped titanium dioxide spinous hollow microspheres with sun-flower pollen as bio-templates. J Colloid Interface Sci. 2018;529:111–121.
- [39] Keiteb AS, Saion E, Zakaria A, Soltani N. Structural and optical properties of zirconia nanoparticles by thermal treat-ment synthesis. J Nanomater. 2016;2016(4):1–6.
- [40] Chang SM, Doong RA. Interband transitions in sol-gel-derived ZrO2 films under different calcination conditions. Chem Mater. 2007;19(19):4804–4810.
- [41] Peymani Forooshani R, Poursalehi R, Yourdkhani A. Optical and structural properties of colloidal zirconia nanopar-ticles prepared by arc discharge in liquid. AIP Conf Proc. 2018;1920:020028-1–020028-6.
- [42] Herrera G, Montoya N, Doménech-Carbó A, Alarcón J. Synthesis, characterization and electrochemical properties of iron-zirconia solid solution nanoparticles prepared using a sol-gel technique. Phys Chem Chem Phys. 2013;15(44):19312–19321.
- [43] Ciuparu D, Ensuque A, Shafeev G, Bozon-Verduraz F. Synthesis and apparent bandgap of nanophase zirconia. J Mater Sci Lett. 2000;19(11):931–933.
- [44] Rani M, Shanker U. Sun-light driven rapid photocatalytic degradation of methylene blue by poly(methyl methacry-late)/metal oxide nanocomposites. Colloids Surfaces A Physi-cochem Eng Asp. 2018;559:136–147.
- [45] Garcia JC, Scolfaro LMR, Lino AT et al. Structural, elec-tronic, and optical properties of ZrO2 from ab initio calculations. J Appl Phys. 2006;100(10).
- [46] Hussain SA, Lkhayatt A, Adel H Omran, Mahdi EA. Effect of co-dopant on the structural and optical properties of nanocrystalline ZrO2 thin films prepared by spray pyrolysis technique. J Appl Phys. 2016;8(5):44–49.
- [47] Mahanthappa M, Kottam N, Yellappa S. Enhanced pho-tocatalytic degradation of methylene blue dye using CuS–CdS nanocomposite under visible light irradiation. Appl Surf Sci. 2019;475:828–838.
- [48] Lv T, Pan L, Liu X, Lu T, Zhu G, Sun Z. Enhanced pho-tocatalytic degradation of methylene blue by ZnO-reduced gra-phene oxide composite synthesized via microwave-assisted re-action. J Alloys Compd. 2011;509(41):10086–10091.
- [49] Wang Z, Srivastava V, Iftekhar S, Ambat I, Sillanpää M. Fabrication of Sb2O3/PbO photocatalyst for the UV/PMS assist-ed degradation of carbamazepine from synthetic wastewater. Chem Eng J. 2018;354:663–671.
- [50] Zaborowska M, Smok W, Tanski T. Electrospinning synthesis and characterization of zirconia nanofibers annealed at differ-ent tempera-tures. Appl Surf Sci. 2023;615:156342.
- [51] Chelliah P, Wabaidur SM, Sharma HP, Majdi HS, Smait DA, Najm MA, et. al. Photocatalytic organic contaminant degrada-tion of green synthesized ZrO2 NPs and their antibacterial activities. Separations. 2023;10:156.