|dcterms.references|| G. S. Bullerjahn, R. M. McKay, T. W. Davis et al., “Global solutions to regional problems: collecting global expertise to
address the problem of harmful cyanobacterial blooms. A Lake
Erie case study,” Harmful Algae, vol. 54, pp. 223–238, 2016.
 E. Funari, M. Manganelli, F. M. Buratti, and E. Testai, “Cyanobacteria blooms in water: Italian guidelines to assess and manage the risk associated to bathing and recreational activities,”
Science of the Total Environment, vol. 598, pp. 867–880, 2017.
 H. W. Paerl, W. S. Gardner, K. E. Havens et al., “Mitigating
cyanobacterial harmful algal blooms in aquatic ecosystems
impacted by climate change and anthropogenic nutrients,”
Harmful Algae, vol. 54, pp. 213–222, 2016.
 P. M. Visser, J. M. H. Verspagen, G. Sandrini et al., “How
rising CO2 and global warming may stimulate harmful cyanobacterial blooms,” Harmful Algae, vol. 54, pp. 145–159,
 Environmental Protection Agency, Cyanobacteria and cyanotoxins: information for drinking water systems, pp. 1–11,
 R. Dewil, D. Mantzavinos, I. Poulios, and M. A. Rodrigo, “New
perspectives for advanced oxidation processes,” Journal of
Environmental Management, vol. 195, Part 2, pp. 93–99, 2017.
 V. Gitis and N. Hankins, “Water treatment chemicals: trends
and challenges,” Journal of Water Process Engineering,
vol. 25, pp. 34–38, 2018.
 L. Wolski and M. Ziolek, “Insight into pathways of methylene
blue degradation with H2O2 over mono and bimetallic Nb,
Zn oxides,” Applied Catalysis B: Environmental, vol. 224,
pp. 634–647, 2018.
 D. Pathania, S. Sharma, and P. Singh, “Removal of methylene
blue by adsorption onto activated carbon developed from
Ficus carica bast,” Arabian Journal of Chemistry, vol. 10,
pp. S1445–S1451, 2017.
 C. Díaz-Uribe, W. Vallejo, K. Campos et al., “Improvement of
the photocatalytic activity of TiO2 using Colombian Caribbean
species (Syzygium cumini) as natural sensitizers: experimental
and theoretical studies,” Dyes and Pigments, vol. 150, pp. 370–
 D. Liu, R. Tian, J. Wang et al., “Photoelectrocatalytic degradation of methylene blue using F doped TiO2 photoelectrodeunder visible light irradiation,” Chemosphere, vol. 185,
pp. 574–581, 2017.
 W. Vallejo, C. Diaz-Uribe, and Á. Cantillo, “Methylene
blue photocatalytic degradation under visible irradiation
on TiO2 thin films sensitized with Cu and Zn tetracarboxyphthalocyanines,” Journal of Photochemistry and Photobiology
A: Chemistry, vol. 299, pp. 80–86, 2015.
 M. A. M. Al-Alwani, A. B. Mohamad, A. A. H. Kadhum, and
N. A. Ludin, “Effect of solvents on the extraction of natural
pigments and adsorption onto TiO2 for dye-sensitized solar
cell applications,” Spectrochimica Acta Part A: Molecular and
Biomolecular Spectroscopy, vol. 138, pp. 130–137, 2015.
 N.-S. Lau, M. Matsui, and A. A. A. Abdullah, “Cyanobacteria:
photoautotrophic microbial factories for the sustainable synthesis of industrial products,” BioMed Research International,
vol. 2015, Article ID 754934, 9 pages, 2015.
 A. Kathiravan, M. Chandramohan, R. Renganathan, and
S. Sekar, “Cyanobacterial chlorophyll as a sensitizer for colloidal TiO2,” Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, vol. 71, no. 5, pp. 1783–1787, 2009.
 P. Enciso, M. Cabrerizo, J. Gancheff, P. Denis, and M. Cerda,
“Phycocyanin assemblies onto nanostructured TiO2 for photovoltaic cells,” Journal of Applied Solution Chemistry and
Modeling, vol. 2, pp. 225–233, 2013.
 C. Xiang, C. A. Okonkwo, Q. Xiong, L. Wang, and L. Jia, “A
novel TiO2 film photoanode decorated with spirulina-derived
residual groups for enhanced photocurrent in dye-sensitized
solar cells,” Solar Energy, vol. 134, pp. 461–467, 2016.
 R. S. Gour, M. Bairagi, V. K. Garlapati, and A. Kant,
“Enhanced microalgal lipid production with media engineering of potassium nitrate as a nitrogen source,” Bioengineered,
vol. 9, no. 1, pp. 98–107, 2018.
 J. Komárek, J. Kaštovský, J. Mareš, and J. R. Johansen, “Taxonomic classification of cyanoprokaryotes (cyanobacterial
genera) 2014, using a polyphasic approach,” Preslia, vol. 86,
pp. 295–335, 2014.
 K. Anagnostidis and J. Komárek, “Modern approach to the
classification system of the cyanophytes. 3-Oscillatoriales,”
Algological Studies, vol. 50-53, pp. 327–472, 1988.
 S. Cirés and A. Quesada, Catálogo de cianobacterias planctónicas potencialmente tóxicas de las aguas continentales españolas,
Ministerio de Medio Ambiente y Medio Rural y Marino, 2011.
 AlgaeBase, “M.D. Guiry,” 2019, http://www.algaebase.org/.
 J. A. Fernández, A. Suan, J. C. Ramírez et al., “Treatment of
real wastewater with TiO2-films sensitized by a natural-dye
obtained from Picramnia sellowii,” Journal of Environmental
Chemical Engineering, vol. 4, no. 3, pp. 2848–2856, 2016.
 E. Rice, R. Baird, A. Eaton, and L. Clescerl, Standard Methods
for Examination of Water and Wastewater, American Public
Health Association, Washington DC, USA, 22a edition, 2012.
 C. Quiñones, Y. Ayala, and W. Vallejo, “Methylene blue
photoelectrodegradation under UV irradiation on Au/Pdmodified TiO2 films,” Applied Surface Science, vol. 257, no. 2,
pp. 367–371, 2010.
 F. E. Fritsch and F. Rich, “Freshwater algae from Griqualand
West,” Transactions of the Royal Society of South Africa,
vol. 18, no. 1, pp. 1–92, 1929.
 M. Gomont, “Monographie des Oscillariées (Nostocacées
Homocystées). Deuxième partie. - Lyngbyées,” Annales des sciences Naturelles, Botanique, Série, vol. 7, no. 16, pp. 91–264,
1892, pls 1-7.
 M. Hamadanian, J. Safaei-Ghomi, M. Hosseinpour,
R. Masoomi, and V. Jabbari, “Uses of new natural dye photosensitizers in fabrication of high potential dye-sensitized solar
cells (DSSCs),” Materials Science in semiconductor Processing,
vol. 27, pp. 733–739, 2014.
 Ü. İşci, M. Beyreis, N. Tortik et al., “Methylsulfonyl Zn
phthalocyanine: a polyvalent and powerful hydrophobic
photosensitizer with a wide spectrum of photodynamic
applications,” Photodiagnosis and Photodynamic Therapy,
vol. 13, pp. 40–47, 2016.
 T. Phongamwong, M. Chareonpanich, and J. Limtrakul, “Role
of chlorophyll in spirulina on photocatalytic activity of CO2
reduction under visible light over modified N-doped TiO2
photocatalysts,” Applied Catalysis B: Environmental, vol. 168-
169, pp. 114–124, 2015.
 J. Lim, A. D. Bokare, and W. Choi, “Visible light sensitization
of TiO2 nanoparticles by a dietary pigment, curcumin, for
environmental photochemical transformations,” RSC
Advances, vol. 7, no. 52, pp. 32488–32495, 2017.
 P. Enciso, F. M. Cabrerizo, J. S. Gancheff, P. A. Denis, and
M. F. Cerdá, “Phycocyanin as potential natural dye for its use
in photovoltaic cells,” Journal of Applied Solution Chemistry
and Modeling, vol. 2, pp. 225–233, 2013.
 E. L. Simmons, “Relation of the diffuse reflectance remission
function to the fundamental optical parameters,” Optica Acta:
International Journal of Optics, vol. 19, no. 10, pp. 845–851,
 J. Tauc, R. Grigorovici, and A. Vancu, “Optical properties and
electronic structure of amorphous germanium,” Physica Status
Solidi (b), vol. 15, no. 2, pp. 627–637, 1966.
 B. D. Viezbicke, S. Patel, B. E. Davis, and D. P. Birnie III,
“Evaluation of the Tauc method for optical absorption edge
determination: ZnO thin films as a model system,” Physica
Status Solidi (b), vol. 252, no. 8, pp. 1700–1710, 2015.
 W. Vallejo, A. Rueda, C. Díaz-Uribe, C. Grande, and
P. Quintana, “Photocatalytic activity of graphene oxide–TiO2
thin films sensitized by natural dyes extracted from Bactris guineensis,” Royal Society Open Science, vol. 6, no. 3, article
 S. Khaleghi,“Calculation of electronic and optical properties of
doped titanium dioxide nanostructure,” Journal of Nanostructures, vol. 2, no. 2, pp. 157–161, 2012.
 T. S. Senthil, N. Muthukumarasamy, S. Agilan,
R. Balasundaraprabhu, and C. K. Senthil Kumaran, “Effect of
surface morphology on the performance of natural dye sensitized TiO2 thin film solar cell,” Advanced Materials Research,
vol. 678, pp. 326–330, 2013.
 I. K. Konstantinou and T. A. Albanis, “TiO2-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and
mechanistic investigations: a review,” Applied Catalysis B:
Environmental, vol. 49, no. 1, pp. 1–14, 2004.
 S. Wang, H. Yang, X. Wang, and W. Feng, “Surface disorder
engineering of flake-like Bi2WO6 crystals for enhanced photocatalytic activity,”Journal of Electronic Materials, vol. 48, no. 4,
pp. 2067–2076, 2019.
 X. Zhao, H. Yang, H. Zhang, Z. Cui, and W. Feng, “Surfacedisorder-engineering-induced enhancement in the photocatalytic activity of Bi4Ti3O12 nanosheets,” Desalination and
Water Treatment, vol. 145, pp. 326–336, 2019.||spa