[1] Mo, J., Zhang, Y., Xu, Q., Lamson, J. J., & Zhao, R. (2009). Photocatalytic purification of volatile organic compounds in indoor air: A literature review. Atmospheric environment, 43(14): 2229-2246.
[2] Crini, G., & Lichtfouse, E. (2019). Advantages and disadvantages of techniques used for wastewater treatment. Environmental Chemistry Letters, 17(1): 145-155.
[3] Donkadokula, N. Y., Kola, A. K., Naz, I., & Saroj, D. (2020). A review on advanced physico-chemical and biological textile dye wastewater treatment techniques. Reviews in environmental science and bio/technology, 19(3): 543-560.
[4] Islam, T., Repon, M. R., Islam, T., Sarwar, Z., & Rahman, M. M. (2023). Impact of textile dyes on health and ecosystem: a review of structure, causes, and potential solutions. Environmental Science and Pollution Research, 30(4): 9207-9242.
[5] Di Paola, A., García-López, E., Marcì, G., & Palmisano, L. (2012). A survey of photocatalytic materials for environmental remediation. Journal of hazardous materials, 211: 3-29.
[6] Ren, G., Han, H., Wang, Y., Liu, S., Zhao, J., Meng, X., & Li, Z. (2021). Recent advances of photocatalytic application in water treatment: a review. Nanomaterials, 11(7): 1804.
[7] Rafiq, A., Ikram, M., Ali, S., Niaz, F., Khan, M., Khan, Q., & Maqbool, M. (2021). Photocatalytic degradation of dyes using semiconductor photocatalysts to clean industrial water pollution. Journal of Industrial and Engineering Chemistry, 97: 111-128.
[8] Asgari, E., & Kalantari, K. (2021). Improvement of Photocatalytic Activity of ZnO Nanoparticles by Mn Doping in BD71 Degradation. Iranian Chemical Engineering Journal, 20(115): 43-52.
[9] Machrouhi, A., Khiar, H., Elhalil, A., Sadiq, M., Abdennouri, M., & Barka, N. (2023). Synthesis, characterization, and photocatalytic degradation of anionic dyes using a novel ZnO/activated carbon composite. Watershed Ecology and the Environment, 5: 80-87.
[10] Pant, B., Park, M., & Park, S. -J. (2019). Recent advances in TiO2 films prepared by sol-gel methods for photocatalytic degradation of organic pollutants and antibacterial activities. Coatings, 9(10): 613.
[11] Parangi, T., & Mishra, M. K. (2019). Titania nanoparticles as modified photocatalysts: a review on design and development. Comments on Inorganic Chemistry, 39(2): 90-126.
[12] Verma, N., Chundawat, T. S., Chandra, H., & Vaya, D. (2023). An efficient time reductive photocatalytic degradation of carcinogenic dyes by TiO2-GO nanocomposite. Materials Research Bulletin, 158: 112043.
[13] Zhang, X., Wang, Y., Liu, B., Sang, Y., & Liu, H. (2017). Heterostructures construction on TiO2 nanobelts: a powerful tool for building high-performance photocatalysts. Applied Catalysis B: Environmental, 202: 620-641.
[14] Chen, Y., Gao, H., Xiang, J., Dong, X., & Cao, Y. (2018). Enhanced photocatalytic activities of TiO2-reduced graphene oxide nanocomposites controlled by TiOC interfacial chemical bond. Materials Research Bulletin, 99: 29-36.
[15] Kalantari, K., Kalbasi, M., Sohrabi, M., & Royaee, S. J. (2016). Synthesis and characterization of N-doped TiO2 nanoparticles and their application in photocatalytic oxidation of dibenzothiophene under visible light. Ceramics International, 42(13): 14834-14842.
[16] Kalantari, K., Kalbasi, M., Sohrabi, M., & Royaee, S. J. (2017). Enhancing the photocatalytic oxidation of dibenzothiophene using visible light responsive Fe and N co-doped TiO2 nanoparticles. Ceramics international, 43(1): 973-981.
[17] Purabgola, A., Mayilswamy, N., & Kandasubramanian, B. (2022). Graphene-based TiO2 composites for photocatalysis & environmental remediation: synthesis and progress. Environmental Science and Pollution Research, 29(22): 32305-32325.
[18] Rajput, A., Rahman, M. A., Rahman, M. H., & Kuila, A. (2023). Visible light photocatalytic degradation of organic pollutants in industrial wastewater by engineered TiO2 nanoparticles. Biomass Conversion and Biorefinery: 1-11.
[19] Basavarajappa, P. S., Patil, S. B., Ganganagappa, N., Reddy, K. R., Raghu, A. V., & Reddy, C. V. (2020). Recent progress in metal-doped TiO2, non-metal doped/codoped TiO2 and TiO2 nanostructured hybrids for enhanced photocatalysis. International Journal of Hydrogen Energy, 45(13): 7764-7778.
[20] Mishra, S., Chakinala, N., Chakinala, A. G., & Surolia, P. K. (2022). Photocatalytic degradation of methylene blue using monometallic and bimetallic Bi-Fe doped TiO2. Catalysis Communications, 171: 106518.
[21] Ali, T., Tripathi, P., Azam, A., Raza, W., Ahmed, A. S., Ahmed, A., & Muneer, M. (2017). Photocatalytic performance of Fe-doped TiO2 nanoparticles under visible-light irradiation. Materials Research Express, 4(1): 015022.
[22] Sayyar, Z., Babaluo, A. A., & Shahrouzi, J. R. (2015). Kinetic study of formic acid degradation by Fe3+ doped TiO2 self-cleaning nanostructure surfaces prepared by cold spray. Applied Surface Science, 335: 1-10.
[23] Neren Ökte, A., & Akalın, Ş. (2010). Iron (Fe3+) loaded TiO2 nanocatalysts: characterization and photoreactivity. Reaction Kinetics, Mechanisms and Catalysis, 100(1): 55-70.
[24] Banisharif, A., Khodadadi, A. A., Mortazavi, Y., Firooz, A. A., Beheshtian, J., Agah, S., & Menbari, S. (2015). Highly active Fe2O3-doped TiO2 photocatalyst for degradation of trichloroethylene in air under UV and visible light irradiation: Experimental and computational studies. Applied Catalysis B: Environmental, 165: 209-221.
[25] Chen, C. -C., Hu, S. -H., & Fu, Y. -P. (2015). Effects of surface hydroxyl group density on the photocatalytic activity of Fe3+-doped TiO2. Journal of Alloys and Compounds, 632: 326-334.
[26] Han, G., Kim, J. Y., Kim, K. -J., Lee, H., & Kim, Y. -M. (2020). Controlling surface oxygen vacancies in Fe-doped TiO2 anatase nanoparticles for superior photocatalytic activities. Applied Surface Science, 507: 144916.
[27] Moradi, V., Ahmed, F., Jun, M. B., Blackburn, A., & Herring, R. A. (2019). Acid-treated Fe-doped TiO2 as a high performance photocatalyst used for degradation of phenol under visible light irradiation. Journal of Environmental Sciences, 83: 183-194.
[28] Yalçın, Y., Kılıç, M., & Çınar, Z. (2010). Fe+3-doped TiO2: A combined experimental and computational approach to the evaluation of visible light activity. Applied Catalysis B: Environmental, 99(3-4): 469-477.
[29] Meroni, D., & Bianchi, C. L. (2022). Ultrasound waves at the service of photocatalysis: from sonochemical synthesis to ultrasound-assisted and piezo-enhanced photocatalysis. Current Opinion in Green and Sustainable Chemistry: 100639.
[30] Qayyum, A., Giannakoudakis, D. A., Łomot, D., Colmenares-Quintero, R. F., LaGrow, A. P., Nikiforow, K., Lisovytskiy, D., & Colmenares, J. C. (2023). Tuning the physicochemical features of titanium oxide nanomaterials by altering the ultrasound parameters during the synthesis: Elevating photocatalytic selective partial oxidation of aromatic alcohols. Ultrasonics Sonochemistry: 106306.
[31] Saien, J., & Soleymani, A. (2007). Degradation and mineralization of Direct Blue 71 in a circulating upflow reactor by UV/TiO2 process and employing a new method in kinetic study. Journal of Hazardous Materials, 144(1-2): 506-512.
[32] Kalaivani, T., & Anilkumar, P. (2018). Role of temperature on the phase modification of TiO2 nanoparticles synthesized by the precipitation method. Silicon, 10(4): 1679-1686.
[33] Tian, G., Fu, H., Jing, L., & Tian, C. (2009). Synthesis and photocatalytic activity of stable nanocrystalline TiO2 with high crystallinity and large surface area. Journal of Hazardous Materials, 161(2-3): 1122-1130.
[34] Yu, J., Xiang, Q., & Zhou, M. (2009). Preparation, characterization and visible-light-driven photocatalytic activity of Fe-doped titania nanorods and first-principles study for electronic structures. Applied Catalysis B: Environmental, 90(3-4): 595-602.
[35] Kerrami, A., Mahtout, L., Bensouici, F., Bououdina, M., Rabhi, S., Sakher, E., & Belkacemi, H. (2019). Synergistic effect of Rutile-Anatase Fe-doped TiO2 as efficient nanocatalyst for the degradation of Azucryl Red. Materials Research Express, 6(8): 0850-0855.
[36] Wang, J., Li, X., Ren, Y., Xia, Z., Wang, H., Jiang, W., Liu, C., Zhang, S., Li, Z., & Wu, S. (2021). The effects of additive on properties of Fe doped TiO2 nanoparticles by modified sol-gel method. Journal of Alloys and Compounds, 858: 157726.
[37] Riazian, M., & Bahari, A. (2012). Synthesis and nanostructural investigation of TiO2 nanorods doped by SiO2. Pramana, 78: 319-331.
[38] Zou, K., Dong, G., Liu, J., Xu, B., & Wang, D. (2019). Effects of calcination temperature and Li+ ions doping on structure and upconversion luminescence properties of TiO2: Ho3+-Yb3+ nanocrystals. Journal of materials science & technology, 35(4): 483-490.
[39] Chi, M., Sun, X., Lozano-Blanco, G., & Tatarchuk, B. J. (2021). XPS and FTIR investigations of the transient photocatalytic decomposition of surface carbon contaminants from anatase TiO2 in UHV starved water/oxygen environments. Applied Surface Science, 570: 151147.
[40] Lu, J., Dai, Y., Guo, M., Yu, L., Lai, K., & Huang, B. (2012). Chemical and optical properties of carbon-doped TiO2: A density-functional study. Applied Physics Letters, 100(10): 102114.
[41] Makuła, P., Pacia, M., & Macyk, W. (2018). How to correctly determine the band gap energy of modified semiconductor photocatalysts based on UV–Vis spectra. ACS Publications, 6814-6817.
[42] Valero-Romero, M., Santaclara, J., Oar-Arteta, L., Van Koppen, L., Osadchii, D., Gascon, J., & Kapteijn, F. (2019). Photocatalytic properties of TiO2 and Fe-doped TiO2 prepared by metal organic framework-mediated synthesis. Chemical Engineering Journal, 360: 75-88.
[43] Komaraiah, D., Radha, E., Kalarikkal, N., Sivakumar, J., Reddy, M. R., & Sayanna, R. (2019). Structural, optical and photoluminescence studies of sol-gel synthesized pure and iron doped TiO2 photocatalysts. Ceramics International, 45(18): 25060-25068.
[44] Li, J. -J., Cai, S. -C., Xu, Z., Chen, X., Chen, J., Jia, H. -P., & Chen, J. (2017). Solvothermal syntheses of Bi and Zn co-doped TiO2 with enhanced electron-hole separation and efficient photodegradation of gaseous toluene under visible-light. Journal of hazardous materials, 325: 261-270.
[45] Su, Y., Xiao, Y., Li, Y., Du, Y., & Zhang, Y. (2011). Preparation, photocatalytic performance and electronic structures of visible-light-driven Fe–N-codoped TiO2 nanoparticles. Materials Chemistry and Physics, 126(3): 761-768.
[46] Komaraiah, D., Radha, E., Sivakumar, J., Reddy, M. R., & Sayanna, R. (2019). Structural, optical properties and photocatalytic activity of Fe3+ doped TiO2 thin films deposited by sol-gel spin coating. Surfaces and Interfaces, 17: 100368.
[47] Shen, J. -H., Chuang, H. -Y., Jiang, Z. -W., Liu, X. -Z., & Horng, J. -J. (2020). Novel quantification of formation trend and reaction efficiency of hydroxyl radicals for investigating photocatalytic mechanism of Fe-doped TiO2 during UV and visible light-induced degradation of acid orange 7. Chemosphere, 251: 126380.
[48] Wu, Y., Zhang, J., Xiao, L., & Chen, F. (2009). Preparation and characterization of TiO2 photocatalysts by Fe3+ doping together with Au deposition for the degradation of organic pollutants. Applied Catalysis B: Environmental, 88(3-4): 525-532.
