استثمار الرماد المتطاير المعالج في تصنيع متراكب نانوي Fe₃O₄@FA@GO@BiOCl فعال ضوئيًا لإزالة الأصباغ من المحاليل المائية

[1] A. T. Salem and N. O. . AL-Musawi, “Water Treatment With Conventional and Alternative Coagulants: A Review,” J. Eng., vol. 27, no. 9, pp. 20–28, Sep. 2021, doi: 10.31026/j.eng.2021.09.02.

[2] R. H. S. AL Suhaili and N. O. A. NASSER, “WATER QUALITY INDICES FOR TIGRIS RIVER IN BAGHDAD CITY,” J. Eng., vol. 14, no. 03, pp. 2656–2668, Sep. 2008, doi: 10.31026/j.eng.2008.03.09.

[3] A. Pirkarami and M. E. Olya, “Removal of dye from industrial wastewater with an emphasis on improving economic efficiency and degradation mechanism,” J. Saudi Chem. Soc., vol. 21, pp. S179–S186, Jan. 2017, doi: 10.1016/j.jscs.2013.12.008.

[4] N. M. Mahmoodi and M. Arami, “Numerical finite volume modeling of dye decolorization using immobilized titania nanophotocatalysis,” Chem. Eng. J., vol. 146, no. 2, pp. 189–193, Feb. 2009, doi: 10.1016/j.cej.2008.05.036.

[5] A. P. Periyasamy, “Textile Dyes in Wastewater and its Impact on Human and Environment: Focus on Bioremediation,” Water, Air, Soil Pollut., vol. 236, no. 9, p. 562, Sep. 2025, doi: 10.1007/s11270-025-08204-7.

[6] M. Ismail et al., “Pollution, Toxicity and Carcinogenicity of Organic Dyes and their Catalytic Bio-Remediation,” Curr. Pharm. Des., vol. 25, no. 34, pp. 3645–3663, Nov. 2019, doi: 10.2174/1381612825666191021142026.

[7] J. Sharma, S. Sharma, and V. Soni, “Classification and impact of synthetic textile dyes on Aquatic Flora: A review,” Reg. Stud. Mar. Sci., vol. 45, p. 101802, Jun. 2021, doi: 10.1016/j.rsma.2021.101802.

[8] J. Hong, K.-H. Cho, V. Presser, and X. Su, “Recent advances in wastewater treatment using semiconductor photocatalysts,” Curr. Opin. Green Sustain. Chem., vol. 36, p. 100644, Aug. 2022, doi: 10.1016/j.cogsc.2022.100644.

[9] S. S. M. Ali, R. H. H. Al-Shammari, and A. M. J. Al-Mamoori, “Removing Toxic Dyes from Aqueous Medium by Trichoderma-Graphain Oxide Aerogel,” Baghdad Sci. J., Apr. 2023, doi: 10.21123/bsj.2023.7773.

[10] S. H. Hasan and S. S. M. Alawadi, “Reducing the Purification Period of Congo Red Dye Solution By Using Co-Exposure to Ultraviolet and Green Laser as A Photocatalysit Source,” Iraqi J. Sci., pp. 2025–2038, May 2022, doi: 10.24996/ijs.2022.63.5.18.

[11] W. S. Hummers and R. E. Offeman, “Preparation of Graphitic Oxide,” J. Am. Chem. Soc., vol. 80, no. 6, pp. 1339–1339, Mar. 1958, doi: 10.1021/ja01539a017.

[12] M. MURUGANANDHAM, “Decolourisation of Reactive Orange 4 by Fenton and photo-Fenton oxidation technology,” Dye. Pigment., vol. 63, no. 3, pp. 315–321, Dec. 2004, doi: 10.1016/j.dyepig.2004.03.004.

[13] R. Tanwar and U. K. Mandal, “Photocatalytic activity of Ni 0.5 Zn 0.5 Fe 2 O 4 @polyaniline decorated BiOCl for azo dye degradation under visible light – integrated role and degradation kinetics interpretation,” RSC Adv., vol. 9, no. 16, pp. 8977–8993, 2019, doi: 10.1039/C9RA00548J.

[14] A. Umar et al., “Enhanced sunlight-driven photocatalytic, supercapacitor and antibacterial applications based on graphene oxide and magnetite-graphene oxide nanocomposites,” Ceram. Int., vol. 48, no. 19, pp. 29349–29358, Oct. 2022, doi: 10.1016/j.ceramint.2022.05.371.

[15] C. Liao, Y. Li, and S. C. Tjong, “Visible-Light Active Titanium Dioxide Nanomaterials with Bactericidal Properties,” Nanomaterials, vol. 10, no. 1, p. 124, Jan. 2020, doi: 10.3390/nano10010124.

[16] J.-W. Chen, B. Yuan, J.-W. Shi, J.-C. E. Yang, and M.-L. Fu, “Reduced graphene oxide and titania nanosheet cowrapped coal fly ash microspheres alternately as a novel photocatalyst for water treatment,” Catal. Today, vol. 315, pp. 247–254, Oct. 2018, doi: 10.1016/j.cattod.2018.02.044.

[17] P. Singh, A. Sudhaik, P. Raizada, P. Shandilya, R. Sharma, and A. Hosseini-Bandegharaei, “Photocatalytic performance and quick recovery of BiOI/Fe3O4@graphene oxide ternary photocatalyst for photodegradation of 2,4-dintirophenol under visible light,” Mater. Today Chem., vol. 12, pp. 85–95, Jun. 2019, doi: 10.1016/j.mtchem.2018.12.006.

[18] L. Zhang, W. Wang, L. Zhou, M. Shang, and S. Sun, “Fe3O4 coupled BiOCl: A highly efficient magnetic photocatalyst,” Appl. Catal. B Environ., vol. 90, no. 3–4, pp. 458–462, Aug. 2009, doi: 10.1016/j.apcatb.2009.04.005.

[19] W. J. Kim, D. Pradhan, B.-K. Min, and Y. Sohn, “Adsorption/photocatalytic activity and fundamental natures of BiOCl and BiOClxI1−x prepared in water and ethylene glycol environments, and Ag and Au-doping effects,” Appl. Catal. B Environ., vol. 147, pp. 711–725, Apr. 2014, doi: 10.1016/j.apcatb.2013.10.008.

[20] C. Yang, F. Li, M. Zhang, T. Li, and W. Cao, “Preparation and first-principles study for electronic structures of BiOI/BiOCl composites with highly improved photocatalytic and adsorption performances,” J. Mol. Catal. A Chem., vol. 423, pp. 1–11, Nov. 2016, doi: 10.1016/j.molcata.2016.06.007.

[21] W. Wang, F. Huang, and X. Lin, “xBiOI–(1−x)BiOCl as efficient visible-light-driven photocatalysts,” Scr. Mater., vol. 56, no. 8, pp. 669–672, Apr. 2007, doi: 10.1016/j.scriptamat.2006.12.023.

[22] S. N. Tan, M. L. Yuen, and R. A. Ramli, “Photocatalysis of dyes: Operational parameters, mechanisms, and degradation pathway,” Green Anal. Chem., vol. 12, p. 100230, Mar. 2025, doi: 10.1016/j.greeac.2025.100230.

[23] H. Liu, T. Lv, and Z. Zhu, “Template-assisted synthesis of hollow TiO2@rGO core–shell structural nanospheres with enhanced photocatalytic activity,” J. Mol. Catal. A Chem., vol. 404–405, pp. 178–185, Aug. 2015, doi: 10.1016/j.molcata.2015.04.022.

[24] H. Xiao and T. Wang, “Graphene oxide (rGO)-metal oxide (TiO2/Ag2O) based nanocomposites for the removal of rhodamine B at UV–visible light,” J. Phys. Chem. Solids, vol. 154, p. 110100, Jul. 2021, doi: 10.1016/j.jpcs.2021.110100.

[25] M. R. Al-Mamun, M. N. Karim, N. A. Nitun, S. Kader, M. S. Islam, and M. Z. H. Khan, “Photocatalytic performance assessment of GO and Ag co-synthesized TiO2 nanocomposite for the removal of methyl orange dye under solar irradiation,” Environ. Technol. Innov., vol. 22, p. 101537, May 2021, doi: 10.1016/j.eti.2021.101537.

[26] R. H. Jaber, S. E. Ebrahim, and F. M. Omar, “Fe3O4@BiOCl@GO Core/shell heterojunction nanocomposite as a magnetically recyclable photocatalyst for complete visible light degradation and deep mineralization of dyes in wastewater,” Results Eng., vol. 29, p. 108620, Mar. 2026, doi: 10.1016/j.rineng.2025.108620.

[27] P. Huo et al., “H2O2 modified surface of TiO2/fly-ash cenospheres and enhanced photocatalytic activity on methylene blue,” Desalination, vol. 263, no. 1–3, pp. 258–263, Nov. 2010, doi: 10.1016/j.desal.2010.06.067.

[28] B. Wang, Q. Li, W. Wang, Y. Li, and J. Zhai, “Preparation and characterization of Fe3+-doped TiO2 on fly ash cenospheres for photocatalytic application,” Appl. Surf. Sci., vol. 257, no. 8, pp. 3473–3479, Feb. 2011, doi: 10.1016/j.apsusc.2010.11.050.

[29] L.-L. Tan, W.-J. Ong, S.-P. Chai, and A. R. Mohamed, “Noble metal modified reduced graphene oxide/TiO2 ternary nanostructures for efficient visible-light-driven photoreduction of carbon dioxide into methane,” Appl. Catal. B Environ., vol. 166–167, pp. 251–259, May 2015, doi: 10.1016/j.apcatb.2014.11.035.

[30] A. K. A. Khalil et al., “Fly ash as zero cost material for water treatment applications: A state of the art review,” Sep. Purif. Technol., vol. 354, p. 129104, Feb. 2025, doi: 10.1016/j.seppur.2024.129104.

[31] F. Mushtaq et al., “MnFe2O4/coal fly ash nanocomposite: a novel sunlight-active magnetic photocatalyst for dye degradation,” Int. J. Environ. Sci. Technol., vol. 17, no. 10, pp. 4233–4248, Oct. 2020, doi: 10.1007/s13762-020-02777-y.

[32] N. Nadeem, M. Zahid, Z. A. Rehan, M. A. Hanif, and M. Yaseen, “Improved photocatalytic degradation of dye using coal fly ash-based zinc ferrite (CFA/ZnFe2O4) composite,” Int. J. Environ. Sci. Technol., vol. 19, no. 4, pp. 3045–3060, Apr. 2022, doi: 10.1007/s13762-021-03255-9.

[33] B. Tong, L. Shi, and X. Liu, “Sol–Gel Synthesis and Photocatalytic Activity of Graphene Oxide/ZnFe2O4-Based Composite Photocatalysts,” Front. Mater., vol. 9, Jul. 2022, doi: 10.3389/fmats.2022.934759.

[34] Y. Wang, J. Wu, Z. Liu, H. Wang, J. Zhang, and N. Li, “Construction of BiOCl/reduced graphene oxide nanocomposites heterojunction with abundant oxygen vacancies for efficient photocatalytic organic pollutant removal,” Inorg. Chem. Commun., vol. 167, p. 112713, Sep. 2024, doi: 10.1016/j.inoche.2024.112713.

[35] S. Nonthing, A. Panchakeaw, R. Dulyasucharit, H. Nakajima, and S. Nanan, “Fe3O4/BiOCl photocatalyst with magnetic recovery property for solar-light-responsive removal of Rhodamine B dye,” OpenNano, vol. 26, p. 100260, Nov. 2025, doi: 10.1016/j.onano.2025.100260.

[36] H. Chen, X. Wang, W. Bi, Y. Wu, and W. Dong, “Photodegradation of carbamazepine with BiOCl/Fe 3 O 4 catalyst under simulated solar light irradiation,” J. Colloid Interface Sci., vol. 502, pp. 89–99, Sep. 2017, doi: 10.1016/j.jcis.2017.04.031.

[37] L. Favier and M. Harja, “TiO2/Fly Ash Nanocomposite for Photodegradation of Organic Pollutant,” in Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications, Cham: Springer International Publishing, 2020, pp. 1–24. doi: 10.1007/978-3-030-11155-7_11-2.

[38] S. Leela N et al., “Enhanced photocatalytic activity of azo dyes degradation by urea assisted Mo-doped TiO2 under UV-A light and sunlight irradiation,” J. Alloys Compd., vol. 1020, p. 179389, Mar. 2025, doi: 10.1016/j.jallcom.2025.179389.

[39] D. H. Cui, Y. Y. Li, X. D. Ruan, X. C. Song, and Y. Zhang, “Fabrication and photocatalytic performance of Fe3O4@SiO2@BiOCl magnetic nanocomposite,” in Material Science and Environmental Engineering - Proceedings of the 3rd annual 2015 International Conference on Material Science and Environmental Engineering, ICMSEE 2015, CRC Press/Balkema, 2016, pp. 325–328. doi: 10.1201/b19346-69.

[40] N. Nadeem et al., “Coal fly ash-based copper ferrite nanocomposites as potential heterogeneous photocatalysts for wastewater remediation,” Appl. Surf. Sci., vol. 565, p. 150542, Nov. 2021, doi: 10.1016/j.apsusc.2021.150542.

[41] S. H. Ammar, W. A. Abdulnabi, and H. D. A. Kader, “Synthesis, characterization and environmental remediation applications of polyoxometalates-based magnetic zinc oxide nanocomposites (Fe3O4@ZnO/PMOs),” Environ. Nanotechnology, Monit. Manag., vol. 13, p. 100289, May 2020, doi: 10.1016/j.enmm.2020.100289.

[42] G. Asab, E. A. Zereffa, and T. Abdo Seghne, “Synthesis of Silica-Coated Fe 3 O 4 Nanoparticles by Microemulsion Method: Characterization and Evaluation of Antimicrobial Activity,” Int. J. Biomater., vol. 2020, pp. 1–11, Mar. 2020, doi: 10.1155/2020/4783612.

[43] R. Al Rammahi, F. Rasin, and F. Al Aani, “TREATMENT FLY ASH OF AL MUSAYYIB THERMAL POWER PLANT TO BE USED AS A POZZOLANIC MATERIAL,” Kufa J. Eng., vol. 10, no. 3, pp. 90–99, Jun. 2021, doi: 10.30572/2018/KJE/100306.

[44] V. Gilja, Z. Katančić, L. K. Krehula, V. Mandić, and Z. Hrnjak-Murgić, “Efficiency of TiO 2 catalyst supported by modified waste fly ash during photodegradation of RR45 dye,” Sci. Eng. Compos. Mater., vol. 26, no. 1, pp. 292–300, Jan. 2019, doi: 10.1515/secm-2019-0017.

[45] A. H. Jatoi et al., “High-performance asparagine-modified graphene oxide membranes for organic dyes and heavy metal ion separation,” New J. Chem., vol. 48, no. 4, pp. 1715–1723, 2024, doi: 10.1039/D3NJ04552H.

[46] R. H. Jaber, S. E. Ebrahim, and F. M. Omar, “Magnetic Core/Shell Fe3O4@FA Nanocomposite for Visible Light Photocatalytic Degradation of Methyl Orange,” Int. J. Des. Nat. Ecodynamics, vol. 20, no. 9, pp. 1993–2010, Sep. 2025, doi: 10.18280/ijdne.200905.

[47] E. C. Umejuru, E. Prabakaran, and K. Pillay, “Coal Fly Ash Decorated with Graphene Oxide–Tungsten Oxide Nanocomposite for Rapid Removal of Pb 2+ Ions and Reuse of Spent Adsorbent for Photocatalytic Degradation of Acetaminophen,” ACS Omega, vol. 6, no. 17, pp. 11155–11172, May 2021, doi: 10.1021/acsomega.0c04194.

[48] Y.-R. Jiang, H.-P. Lin, W.-H. Chung, Y.-M. Dai, W.-Y. Lin, and C.-C. Chen, “Controlled hydrothermal synthesis of BiOxCly/BiOmIn composites exhibiting visible-light photocatalytic degradation of crystal violet,” J. Hazard. Mater., vol. 283, pp. 787–805, Feb. 2015, doi: 10.1016/j.jhazmat.2014.10.025.

[49] M. Danish and M. Muneer, “Excellent visible-light-driven Ni-ZnS/g-C3N4 photocatalyst for enhanced pollutants degradation performance: Insight into the photocatalytic mechanism and adsorption isotherm,” Appl. Surf. Sci., vol. 563, p. 150262, Oct. 2021, doi: 10.1016/j.apsusc.2021.150262.

[50] K.-M. Chang, C.-T. Chang, K.-Y. Chao, and C.-H. Lin, “A Novel pH-dependent Drift Improvement Method for Zirconium Dioxide Gated pH-Ion Sensitive Field Effect Transistors,” Sensors, vol. 10, no. 5, pp. 4643–4654, May 2010, doi: 10.3390/s100504643.

[51] A. J. Paula, D. S. T. Martinez, R. T. Araujo Júnior, A. G. Souza Filho, and O. L. Alves, “Suppression of the hemolytic effect of mesoporous silica nanoparticles after protein corona interaction: independence of the surface microchemical environment,” J. Braz. Chem. Soc., vol. 23, no. 10, pp. 1807–1814, Oct. 2012, doi: 10.1590/S0103-50532012005000048.

[52] I. Sæbø, M. Bjørås, H. Franzyk, E. Helgesen, and J. Booth, “Optimization of the Hemolysis Assay for the Assessment of Cytotoxicity,” Int. J. Mol. Sci., vol. 24, no. 3, p. 2914, Feb. 2023, doi: 10.3390/ijms24032914.

[53] M. Dw. Nm. Tn. An. P, “Fe3O4/SiO2 Nanocomposite Derived from Coal Fly Ash and Acid Mine Drainage for the Adsorptive Removal of Diclofenac in Wastewater,” 2025, doi: https://doi.org/10.3390/recycling10030099.

[54] X. Chang et al., “Constrained growth of ultrasmall BiOCl nanodiscs with a low percentage of exposed {001} facets and their enhanced photoreactivity under visible light irradiation,” Appl. Catal. B Environ., vol. 176–177, pp. 201–211, Oct. 2015, doi: 10.1016/j.apcatb.2015.03.047.

[55] H.-P. Jing, C.-C. Wang, Y.-W. Zhang, P. Wang, and R. Li, “Photocatalytic degradation of methylene blue in ZIF-8,” RSC Adv., vol. 4, no. 97, pp. 54454–54462, 2014, doi: 10.1039/C4RA08820D.

[56] E. G. Karvelas, N. K. Lampropoulos, L. T. Benos, T. Karakasidis, and I. E. Sarris, “On the magnetic aggregation of Fe3O4 nanoparticles,” Comput. Methods Programs Biomed., vol. 198, p. 105778, Jan. 2021, doi: 10.1016/j.cmpb.2020.105778.

[57] C.-G. Lu, C.-J. Jiao, X.-C. Zhang, W.-C. Lin, and X.-F. Chen, “Fly Ash-Supported Photocatalysts: Synthesis, Applications, and Advances in Modification Technology,” Crystals, vol. 15, no. 3, p. 223, Feb. 2025, doi: 10.3390/cryst15030223.

[58] F. A. R. Alkurdy and S. E. Ebrahim, “Comparison Between Commercial and Synthesized Fe3O4 Nanoparticles for Removal of Heavy Metal Contaminants in Wastewater,” Assoc. Arab Univ. J. Eng. Sci., vol. 27, no. 1, pp. 30–43, Mar. 2020, doi: 10.33261/jaaru.2019.27.1.004.

[59] K. T. Paul, S. Satpathy, I. Manna, K. Chakraborty, and G. Nando, “Preparation and Characterization of Nano structured Materials from Fly Ash: A Waste from Thermal Power Stations, by High Energy Ball Milling,” Nanoscale Res. Lett., vol. 2, no. 8, p. 397, Aug. 2007, doi: 10.1007/s11671-007-9074-4.

[60] M. Rubab et al., “Synthesis and photocatalytic degradation of rhodamine B using ternary zeolite/WO 3 /Fe 3 O 4 composite,” Nanotechnology, vol. 32, no. 34, p. 345705, Aug. 2021, doi: 10.1088/1361-6528/ac037f.

[61] K. V. Divya Lakshmi, T. Siva Rao, J. Swathi Padmaja, I. Manga Raju, S. K. Abdul Alim, and P. Kalyani, “Visible light driven mesoporous Mn and S co-doped TiO2 nano material: Characterization and applications in photocatalytic degradation of indigocarmine dye and antibacterial activity,” Environ. Nanotechnology, Monit. Manag., vol. 10, pp. 494–504, Dec. 2018, doi: 10.1016/j.enmm.2018.11.001.

[62] M. Shekofteh-Gohari and A. Habibi-Yangjeh, “Fe3O4/ZnO/CoWO4 nanocomposites: Novel magnetically separable visible-light-driven photocatalysts with enhanced activity in degradation of different dye pollutants,” Ceram. Int., vol. 43, no. 3, pp. 3063–3071, Feb. 2017, doi: 10.1016/j.ceramint.2016.11.115.

[63] Z. Z. Vasiljevic et al., “Photocatalytic degradation of methylene blue under natural sunlight using iron titanate nanoparticles prepared by a modified sol–gel method,” R. Soc. Open Sci., vol. 7, no. 9, Sep. 2020, doi: 10.1098/rsos.200708.

[64] R. R. Davda, J. W. Shabaker, G. W. Huber, R. D. Cortright, and J. A. Dumesic, “A review of catalytic issues and process conditions for renewable hydrogen and alkanes by aqueous-phase reforming of oxygenated hydrocarbons over supported metal catalysts,” Appl. Catal. B Environ., vol. 56, no. 1–2, pp. 171–186, Mar. 2005, doi: 10.1016/j.apcatb.2004.04.027.

[65] M. M. Mahdi and S. E. Ebrahim, “A Review of BiOBr-Based Photocatalysts for Wastewater Treatment,” Int. J. Heat Technol., vol. 42, no. 1, pp. 219–237, Feb. 2024, doi: 10.18280/ijht.420123.

[66] S. Sontakke, C. Mohan, J. Modak, and G. Madras, “Visible light photocatalytic inactivation of Escherichia coli with combustion synthesized TiO2,” Chem. Eng. J., vol. 189–190, pp. 101–107, May 2012, doi: 10.1016/j.cej.2012.02.036.

[67] R. K. Shah, “Efficient photocatalytic degradation of methyl orange dye using facilely synthesized α-Fe2O3 nanoparticles,” Arab. J. Chem., vol. 16, no. 2, p. 104444, Feb. 2023, doi: 10.1016/j.arabjc.2022.104444.

[68] N. Tahir et al., “Ternary silver tungstate-MoS2/graphene oxide heterostructure nanocomposite for enhanced photocatalysis under visible light and antibacterial activity,” J. Photochem. Photobiol. A Chem., vol. 436, p. 114376, Mar. 2023, doi: 10.1016/j.jphotochem.2022.114376.

[69] R. Jin, Z. Qiu, W. Cheng, and X. Jin, “Photocatalytic degradation of aniline by magnetic nanomaterials Fe3O4@[email protected]·0.04H2O/Ag3PO4,” Chem. Phys. Lett., vol. 755, p. 137747, Sep. 2020, doi: 10.1016/j.cplett.2020.137747.

[70] M. S. Dahash, S. H. Ammar, and W. A. Abdulnabi, “Synthesis of magnetic zincoxysulfide core/shell nanocomposites (Ni@ZnO 0.6 S 0.4 ) for COD photocatalytic degradation in oil refinery wastewater,” IOP Conf. Ser. Mater. Sci. Eng., vol. 928, p. 022063, Nov. 2020, doi: 10.1088/1757-899X/928/2/022063.

[71] M. A. Basith, R. Ahsan, I. Zarin, and M. A. Jalil, “Enhanced photocatalytic dye degradation and hydrogen production ability of Bi25FeO40-rGO nanocomposite and mechanism insight,” Sci. Rep., vol. 8, no. 1, p. 11090, Jul. 2018, doi: 10.1038/s41598-018-29402-w.

[72] E. A. Chernova et al., “Proton transport in electrochemically reduced graphene oxide: Enhancing H+/H2O selectivity,” Carbon N. Y., vol. 213, p. 118288, Sep. 2023, doi: 10.1016/j.carbon.2023.118288.

[73] P. Singh et al., “Enhanced photocatalytic activity and stability of AgBr/BiOBr/graphene heterojunction for phenol degradation under visible light,” J. Saudi Chem. Soc., vol. 23, no. 5, pp. 586–599, Jul. 2019, doi: 10.1016/j.jscs.2018.10.005.

[74] R. G. Pearson, “Absolute electronegativity and hardness: application to inorganic chemistry,” Inorg. Chem., vol. 27, no. 4, pp. 734–740, Feb. 1988, doi: 10.1021/ic00277a030.

[75] M. Harja, G. Buema, N. Lupu, H. Chiriac, D. D. Herea, and G. Ciobanu, “Fly Ash Coated with Magnetic Materials: Improved Adsorbent for Cu (II) Removal from Wastewater,” Materials (Basel)., vol. 14, no. 1, p. 63, Dec. 2020, doi: 10.3390/ma14010063.

[76] S. WANG and H. WU, “Environmental-benign utilisation of fly ash as low-cost adsorbents,” J. Hazard. Mater., vol. 136, no. 3, pp. 482–501, Aug. 2006, doi: 10.1016/j.jhazmat.2006.01.067.

[77] K. Kumari, N. S. Moyon, and M. Ahmaruzzaman, “Environmentally sustainable fabrication of SnO2/fly ash/biochar nanocomposite for enhanced photocatalytic performance for degradation of Ofloxacin and Rose Bengal,” Sci. Rep., vol. 15, no. 1, p. 11965, Apr. 2025, doi: 10.1038/s41598-025-96480-y.

[78] Z. H. Jabbar and S. E. Ebrahim, “Synthesis, characterization, and photocatalytic degradation activity of core/shell magnetic nanocomposites (Fe3O4@SiO2@Ag2WO4@Ag2S) under visible light irradiation,” Opt. Mater. (Amst)., vol. 122, p. 111818, Dec. 2021, doi: 10.1016/j.optmat.2021.111818.