[1] Y. Jiang et al., "New strategy for the in situ synthesis of single-crystalline MnWO4/TiO2 photocatalysts for efficient and cyclic photodegradation of organic pollutants," CrystEngComm, vol. 18, no. 10, pp. 1832-1841, 2016.
[2] R. C. Pawar, Y. Pyo, S. H. Ahn, and C. S. Lee, "Photoelectrochemical properties and photodegradation of organic pollutants using hematite hybrids modified by gold nanoparticles and graphitic carbon nitride," Applied Catalysis B: Environmental, vol. 176, pp. 654-666, 2015.
[3] S. Matongo, G. Birungi, B. Moodley, and P. Ndungu, "Pharmaceutical residues in water and sediment of Msunduzi River, kwazulu-natal, South Africa," Chemosphere, vol. 134, pp. 133-140, 2015.
[4] S. S. Ray, R. Gusain, and N. Kumar, "Classification of water contaminants,"Carbon Nanomaterial-Based Adsorbents for Water Purification, pp. 11-36, 2020.
[5] F. Huang, L. Chen, H. Wang, and Z. Yan, "Analysis of the degradation mechanism of methylene blue by atmospheric pressure dielectric barrier discharge plasma," Chemical Engineering Journal, vol. 162, no. 1, pp. 250-256, 2010.
[6] G. Ren et al., "Recent advances of photocatalytic application in water treatment: a review," Nanomaterials, vol. 11, no. 7, p. 1804, 2021.
[7] Y. Liu, Y. Cao, H. Lv, S. Li, and H. Zhang, "Construction of a 2D nanoplate-like MoS2/Bi2WO6 heterojunction with enhanced visible-light photocatalytic activities," Materials Letters, vol. 188, pp. 99-102, 2017.
[8] A. Fujishima, X. Zhang, and D. A. Tryk, "TiO2 photocatalysis and related surface phenomena," Surface science reports, vol. 63, no. 12, pp. 515-582, 2008.
[9] M. Aliofkhazraei et al., "Review of plasma electrolytic oxidation of titanium substrates: Mechanism, properties, applications and limitations," Applied Surface Science Advances, vol. 5, p. 100121, 2021.
[10] A. K. L. Sajjad, S. Shamaila, B. Tian, F. Chen, and J. Zhang, "One step activation of WOx/TiO2 nanocomposites with enhanced photocatalytic activity," Applied Catalysis B: Environmental, vol. 91, no. 1-2, pp. 397-405, 2009.
[11] C.-F. Lin, C.-H. Wu, and Z.-N. Onn, "Degradation of 4-chlorophenol in TiO2, WO3, SnO2, TiO2/WO3 and TiO2/SnO2 systems," Journal of Hazardous Materials, vol. 154, no. 1-3, pp. 1033-1039, 2008.
[12] K. Y. Song, M. K. Park, Y. T. Kwon, H. W. Lee, W. J. Chung, and W. I. Lee, "Preparation of transparent particulate MoO3/TiO2 and WO3/TiO2 films and their photocatalytic properties," Chemistry of materials, vol. 13, no. 7, pp. 2349-2355, 2001.
[13] J. H. Pan and W. I. Lee, "Preparation of highly ordered cubic mesoporous WO3/TiO2 films and their photocatalytic properties," Chemistry of Materials, vol. 18, no. 3, pp. 847-853, 2006.
[14] M. Bayati, F. Golestani-Fard, A. Moshfegh, and R. Molaei, "A photocatalytic approach in micro arc oxidation of WO3–TiO2 nano porous semiconductors under pulse current," Materials Chemistry and Physics, vol. 128, no. 3, pp. 427-432, 2011.
[15] W.-K. Wang et al., "Single-molecule and-particle probing crystal edge/corner as highly efficient photocatalytic sites on a single TiO2 particle," Proceedings of the National Academy of Sciences, vol. 116, no. 38, pp. 18827-18833, 2019.
[16] M. Farhadian, P. Sangpour, and G. Hosseinzadeh, "Morphology dependent photocatalytic activity of WO3 nanostructures," Journal of Energy Chemistry, vol. 24, no. 2, pp. 171-177, 2015.
[17] X. Li, J. Yu, and M. Jaroniec, "Hierarchical photocatalysts," Chemical Society Reviews, vol. 45, no. 9, pp. 2603-2636, 2016.
[18] K. Venkateswarlu et al., "Role of electrolyte chemistry on electronic and in vitro electrochemical properties of micro-arc oxidized titania films on Cp Ti," Electrochimica Acta, vol. 105, pp. 468-480, 2013.
[19] S. Petrović, S. Stojadinović, L. Rožić, N. Radić, B. Grbić, and R. Vasilić, "Process modelling and analysis of plasma electrolytic oxidation of titanium for TiO2/WO3 thin film photocatalysts by response surface methodology," Surface and Coatings Technology, vol. 269, pp. 250-257, 2015.
[20] M. Bayati, F. Golestani-Fard, and A. Moshfegh, "Visible photodecomposition of methylene blue over micro arc oxidized WO3–loaded TiO2 nano-porous layers," Applied Catalysis A: General, vol. 382, no. 2, pp. 322-331, 2010.
[21] D.-S. Tsai and C.-C. Chou, "Influences of growth species and inclusions on the current–voltage behavior of plasma electrolytic oxidation: A review," Coatings, vol. 11, no. 3, p. 270, 2021.
[22] T. Monetta, P. Parnian, and A. Acquesta, "Recent advances in the control of the degradation rate of PEO treated magnesium and its alloys for biomedical applications," Metals, vol. 10, no. 7, p. 907, 2020.
[23] A. Santos-Coquillat, M. Mohedano, E. Martinez-Campos, R. Arrabal, A. Pardo, and E. Matykina, "Bioactive multi-elemental PEO-coatings on titanium for dental implant applications," Materials Science and Engineering: C, vol. 97, pp. 738-752, 2019.
[24] X. Yao, X. Zhang, H. Wu, L. Tian, Y. Ma, and B. Tang, "Microstructure and antibacterial properties of Cu-doped TiO2 coating on titanium by micro-arc oxidation," Applied Surface Science, vol. 292, pp. 944-947, 2014.
[25] S.-M. Park, Y.-C. Nah, and C. Nam, "Effects of hydrothermal treatment duration on morphology of WO3 nanostructures," Journal of Nanoscience and Nanotechnology, vol. 17, no. 10, pp. 7719-7722, 2017.
[26] S. Rajagopal, D. Nataraj, D. Mangalaraj, Y. Djaoued, J. Robichaud, and O. Y. Khyzhun, "Controlled growth of WO3 nanostructures with three different morphologies and their structural, optical, and photodecomposition studies," Nanoscale research letters, vol. 4, no. 11, pp. 1335-1342, 2009.
[27] S. Cao and H. Chen, "Hydrothermal synthesis of WO3 nanorod s: structure, growth and gas sensing properties," Optoelectronics and Advanced Materials-Rapid Communications, vol. 12, pp. 749-753, 2018.
[28] D. Nagy, D. Nagy, I. M. Szilágyi, and X. Fan, "Effect of the morphology and phases of WO3 nanocrystals on their photocatalytic efficiency," RSC advances, vol. 6, no. 40, pp. 33743-33754, 2016.
[29] C. S. Nkutha, N. D. Shooto, and E. B. Naidoo, "Adsorption studies of methylene blue and lead ions from aqueous solution by using mesoporous coral limestones," South African Journal of Chemical Engineering, vol. 34, pp. 151-157, 2020.
[30] Y. Zhang, E. K. Stefanakos, and D. Y. Goswami, "Effect of photocatalytic surface roughness on reactors effectiveness for indoor air cleaning," Building and environment, vol. 61, pp. 188-196, 2013.
[31] F. Amano, A. Yamakata, K. Nogami, M. Osawa, and B. Ohtani, "Effect of photoexcited electron dynamics on photocatalytic efficiency of bismuth tungstate," The Journal of Physical Chemistry C, vol. 115, no. 33, pp. 16598-16605, 2011.
[32] S. Ikeda et al., "Quantitative analysis of defective sites in titanium (IV) oxide photocatalyst powders," Physical Chemistry Chemical Physics, vol. 5, no. 4, pp. 778-783, 2003.
[33] Q. Wu, M. Liu, Z. Wu, Y. Li, and L. Piao, "Is photooxidation activity of {001} facets truly lower than that of {101} facets for anatase TiO2 crystals?," The Journal of Physical Chemistry C, vol. 116, no. 51, pp. 26800-26804, 2012.
[34] C.-C. Wang, Z. Zhang, and J. Y. Ying, "Photocatalytic decomposition of halogenated organics over nanocrystalline titania," Nanostructured Materials, vol. 9, no. 1-8, pp. 583-586, 1997.
[35] Z. Zhang, C.-C. Wang, R. Zakaria, and J. Y. Ying, "Role of particle size in nanocrystalline TiO2-based photocatalysts," The Journal of Physical Chemistry B, vol. 102, no. 52, pp. 10871-10878, 1998.
[36] C. B. Almquist and P. Biswas, "Role of synthesis method and particle size of nanostructured TiO2 on its photoactivity," Journal of Catalysis, vol. 212, no. 2, pp. 145-156, 2002.
)