References
  -  J. Mittal, Permissible synthetic food dyes in India, Resonance –
    J. Sci. Educ., 25 (2020) 567–577. 
 
  -  T. Robinson, G. McMullan, R. Marchant, P. Nigam, Remediation
    of dyes in textile effluent: a critical review on current
    treatment technologies with a proposed alternative, Bioresour.
    Technol., 77 (2001) 247–255. 
 
  -  T.V. Ramachandra, N. Ahalya, R.D. Kanamadi, Biosorption:
    Techniques and Mechanisms, CES Technical Report 110, Centre
    for Ecological Sciences, Indian Institute of Science, Bangalore,
    2005. 
 
  -  M. Arami, N.Y. Limaee, N.M. Mahmoodi, N.S. Tabrizi,
    Equilibrium and kinetics studies for the adsorption of direct
    and acid dyes from aqueous solution by soy meal hull,
    J. Hazard. Mater., 135 (2006) 171–176. 
 
  -  C.I. Pearce, J.R. Lloyd, J.T. Guthrie, The removal of color from
    textile wastewater using whole bacterial cells: a review, Dyes
    Pigm., 58 (2003) 179–196. 
 
  -  M. Shin, T. Nguyen, J. Ramsay, Evaluation of support materials
    for the surface immobilization and decoloration of amaranth
    by Trametes Versicolor, Appl. Microbiol. Biotechnol., 60 (2002)
    218–223. 
 
  -  C. Arora, S. Soni, S. Sahu, J. Mittal, P. Kumar, P.K. Bajpai,
    Iron based metal organic framework for efficient removal
    of methylene blue dye from industrial waste, J. Mol. Liq.,
    284 (2019) 343–352. 
 
  -  K. Rehman, T. Shahzad, A. Sahar, S. Hussain, F. Mahmood,
    M.H. Siddique, M.A. Siddique, M.I. Rashid, Effect of Reactive
    Black 5 azo dye on soil processes related to C and N cycling,
    PeerJ, 6 (2018) e4802, doi: 10.7717/peerj.4802. 
 
  -  N.R. Rane, V.V. Chandanshive, A.D. Watharkar, R.V. Khandare,
    T.S. Patil, P.K. Pawar, Phytoremediation of sulfonated Remazol
    Red dye and textile effluents by Alternanthera philoxeroides:
    an anatomical, enzymatic and pilot scale study, Water Res.,
    83 (2015) 271–281. 
 
  -  D. Pan, S. Ge, J. Zhao, J. Tian, Q. Shao, L. Guo, X. Mai,
    T. Wu, V. Murugadoss, H. Liu, T. Ding, S. Angaiah, Z. Guo,
    Synthesis and characterization of ZnNiIn layered double
    hydroxides derived mixed metal oxides with highly efficient
    photoelectrocatalytic activities, Ind. Eng. Chem. Res., 58 (2019)
    836–848. 
 
  -  V. Kumar, P. Saharan, A.K. Sharma, A. Umar, I. Kaushal,
    A. Mittal, Y. Al-Hadeethi, B. Rashad, Silver doped manganese
    oxide-carbon nanotube nanocomposite for enhanced dyesequestration:
    isotherm studies and RSM modelling approach,
    Ceram. Int., 46 (2020) 10309–10319. 
 
  -  S.K. Sharma, Green Chemistry for Dyes Removal from
    Wastewater: Research Trends and Applications, Wiley and
    Scrivener Publishing, New Jersey, 2015. 
 
  -  B. Volesky, Sorption and Biosorption, BV Sorbex, Quebec, 2003. 
 
  -  B. Volesky, Z.R. Holan, Biosorption of heavy metals, Biotechnol.
    Progr., 11 (1995) 235–250. 
 
  -  K. Chojnacka, A. Chojnacki, H. Górecka, Biosorption of Cr3+,
    Cd2+ and Cu2+ ions by blue-green algae Spirulina sp.: kinetics,
    equilibrium and the mechanism of the process, Chemosphere,
  59 (2005) 75–84. 
 
  -  W.-Y. Lee, W.X. Wang, Metal accumulation in the green
    macroalga Ulva fasciata: effects of nitrate, ammonium, and
    phosphate, Sci. Total Environ., 278 (2001) 11–22. 
 
  -  Z.R. Holan, B. Volesky, Biosorption of Cd by biomass of marine
    algae, Biotechnol. Bioeng., 41 (1993) 819–825. 
 
  -  E. Fourest, B. Volesky, Alginate properties and heavy metal
    biosorption by marine algae, Appl. Biochem. Biotechnol.,
    67 (1997) 33–44. 
 
  -  M.M. Figueira, B. Volesky, V.S.T. Ciminelli, F.A. Roddick,
    Biosorption of metals in brown seaweed biomass, Water Res.,
    34 (2000) 196–204. 
 
  -  A. Kapoor, R. Viraraghavan, Removal of heavy metals from
    aqueous solutions using immobilized fungal biomass in
    continuous mode, Water Res., 32 (1998) 1968–1977. 
 
  -  P.G. Wightman, J.B. Fein, Ternary interactions in a humic acid-
    Cd-bacteria system, Chem. Geol., 180 (2001) 55–65. 
 
  -  N. Rangsayatorn, E.S. Upatham, M. Kruatrachue, P. Pokethitiyook,
    G.R. Lanza, Phytoremediation potential of Spirulina
    (arthrospira) platensis: biosorption and toxicity studies of
    cadmium, Environ. Pollut., 119 (2002) 45–53. 
 
  -  W. Ma, J.M. Tobin, Development of multimetal binding model
    and application to binary metal biosorption onto peat biomass,
    Water Res., 37 (2003) 3967–3977. 
 
  -  R.J.E. Martins, R. Pardo, R.A.R. Boaventura, Cadmium(II) and
    zinc(II) adsorption by the aquatic moss Fontinalis antipyretica:
    effect of temperature, pH and water hardness, Water Res.,
    38 (2004) 693–699. 
 
  -  D. Zhou, L. Zhang, J. Zhou, S. Guo, Cellulose/chitin beads for
    adsorption of heavy metals in aqueous solution, Water Res.,
    38 (2004) 2643–2650. 
 
  -  Y.S. Ho, C.C. Wang, Pseudo-isotherms for the sorption of
    cadmium ion onto tree fern, Process. Biochem., 39 (2003) 1–5. 
 
  -  I. Anastopoulos, A. Mittal, M. Usman, J. Mittal, G. Yu, A. Nunez-Delago, M. Kornaros, A review on halloysite-based adsorbents
    to remove pollutants in water and wastewater, J. Mol. Liq.,
    269 (2018) 855–868. 
 
  -  S. Lellou, S. Kadi, L. Guemou, J. Schott, H. Benhebal, study of
    methylene blue adsorption by modified kaolinite by dimethyl
    sulfoxide, Ecol. Chem. Eng. S, 27 (2020) 225–239. 
 
  -  A. Ates, A. Yildiz, N. Yildiz, A. Calimli, Heavy metal removal
    from aqueous solution by Pseudevernia furfuracea (L.) Zopf,
    Anal. Chim., 97 (2007) 385–393. 
 
  -  R.N. Williams, R.C. Casellas, N.F. Mangelson, L.B. Rees,
    L.L. Clair, G.B. Schaalje, K.D. Swalberg, Elemental analysis of
    lichens from the intermountain Western USA using PIXE, Nucl.
    Instrum. Methods Phys. Res., Sect. B, 109/110 (1996) 336–340. 
 
  -  G. Akcin, O. Salyabas, F. Yesilcimen, Biosorption of heavy metal
    from aqueous solution by dried lichens, Int. J. Chem., 11 (2001)
    141–146. 
 
  -  O.W. Purvis, B.J. Williamson, K. Bartok, N. Zoltani, Bioaccumulation
    of lead by the lichen Acarospara smaragdula from
    smelter emissions, Res. New Phytol., 147 (2000) 591–599. 
 
  -  M.K. Chettri, C.M. Cook, E. Vardaka, T. Sawidis, T. Lanaras, The
    effect of Cu, Zn and Pb on the chlorophyll content of the lichens
    Cladonia convoluta and Cladonia rangiformis, Environ. Exp. Bot.,
    39 (1998) 1–10. 
 
  -  M. Pipiska, M. Hornik, L. Vrtoch, J. Augustin, J. Lesny,
    Biosorption of Co2+ ions by lichen Hypogymnia physodes from
  aqueous solutions, Biologia, 62 (2007) 276–282. 
 
  -  A. Bingol, A. Aslanb, A. Cakicia, Biosorption of chromate
    anions from aqueous solution by a cationic surfactant-modified
    lichen (Cladonia rangiformis (L.)), J. Hazard. Mater., 161 (2009)
    747–752. 
 
  -  O.D. Uluozlu, A. Sari, M. Tuzen, M. Soylak, Biosorption of
    Pb(II) and Cr(III) from aqueous solution by lichen (Parmelina
    tiliaceae) biomass, Bioresour. Technol., 99 (2008) 2972–2980. 
 
  -  M. Tuzen, A. Sari, D. Mendil, M. Soylak, Biosorptive removal of
    mercury(II) from aqueous solution using lichen (Xanthoparmelia
    conspersa) biomass: kinetic and equilibrium studies, J. Hazard.
    Mater., 169 (2009) 263–270. 
 
  -  CHT Group, Bezacryl Golden Yellow GRL 180, Unpublished
    Internal Company Document, 2017. 
 
  -  S.C.R. Santos, G. Ungureanu, I. Volf, R.A.R. Boaventura,
    C.M.S. Botelho, In: V. Popa, Ed., Biomass as Renewable Raw
    Material to Obtain Bioproducts of High-Tech Value, Elsevier,
    Amsterdam, 2018, pp. 69–112. 
 
  -  S. Lagergren, Zur Theorie der Sogenannten Adsorption Gelöster
    Stoffe, Kungliga Svenska Vetenskapsakademiens, Handlingar,
    24 (1898) 1–39. 
 
  -  Y.S. Ho, G. McKay, Kinetic models for the sorption of dye from
    aqueous solution by wood, Process Saf. Environ. Prot., 76 (1998)
    183–191. 
 
  -  W.J. Weber, J.C. Morris, Kinetics of adsorption on carbon from
    solution, Sanitary Eng. Div., 89 (1963) 31–39. 
 
  -  H.M.F. Freundlich, Over the adsorption in solution, J. Phys.
    Chem., 57 (1906) 385–471. 
 
  -  I. Langmuir, The adsorption of gases on plane surfaces of glass,
    mica and platinum, J. Am. Chem. Soc., 40 (1918) 1361–1403. 
 
  -  O. Çelebi, C. Üzüm, T. Shahwan, H.N. Erten, A radiotracer
    study of the adsorption behavior of aqueous Ba2+ ions on
    nanoparticles of zero-valent iron, J. Hazard. Mater., 148 (2007)
  761–767. 
 
  -  N. Ayawei, A.T. Ekubo, D. Wankasi, E.D. Dikio, Adsorption
    of congo red by Ni/Al-CO3: equilibrium, thermodynamic and
  kinetic studies, Orient. J. Chem., 31 (2015) 1307–1318. 
 
  -  M. Gubernak, W. Zapała, K. Kaczmarski, Analysis of
    amylbenzene adsorption equilibria on an RP-18e chromatographic
    column, Acta Chromatogr., 13 (2003) 38–59. 
 
  -  P.S. Kumar, S. Ramalingam, S.D. Kirupha, A. Murugesan,
    S. Vidhyadevi, S. Sivanesan, Adsorption behavior of nickel(II)
    onto cashew nutshell: equilibrium, thermodynamics, kinetics,
    mechanism and process design, Chem. Eng. J., 1169 (2010)
    122–131. 
 
  -  F. Brouers, T.J. Al-Musawi, On the optimal use of isotherm
    models for the characterization of biosorption of lead onto
    algae, J. Mol. Liq., 212 (2015) 46–51. 
 
  -  P.X. Sheng, Y.P. Ting, J.P. Chen, L. Hong, Sorption of lead,
    copper, cadmium, zinc, and nickel by marine algal biomass:
    characterization of biosorptive capacity and investigation of
    mechanisms, J. Colloid Interface Sci., 275 (2004) 131–141. 
 
  -  J. Coates, Interpretation of Infrared Spectra, A Practical
    Approach, In: Encyclopedia of Analytical Chemistry, John
    Wiley & Sons Ltd., Chichester, 2000, pp. 10815–10837. 
 
  -  V. Murphy, H. Hughes, P. Mcloughlin, Cu(II) binding by dried
    biomass of red, green and brown macroalgae, Water Res.,
    41 (2007) 731–740. 
 
  -  E. Murano, R. Toffanin, E. Cecere, R. Rizzo, S.H. Knutsen,
    Investigation of the carrageenans extracted from Solieria
    filiformis and Agardhiella subulata from Mar Piccolo, Taranto,
    Mar. Chem., 58 (1997) 319–325. 
 
  -  N.A.A. Nazri, R.S. Azis, H.C. Man, A.H. Shaari, N.M. Saiden,
    I. Ismail, Equilibrium studies and dynamic behavior of
    cadmium adsorption by magnetite nanoparticles extracted
    from mill scales waste, Desal. Water Treat., 171 (2019) 115–131. 
 
  -  Z. Aksu, G. Dönmez, A comparative study on the biosorption
    characteristics of some yeasts for Remazol Blue reactive dye,
    Chemosphere, 50 (2003) 1075–1083. 
 
  -  Z. Yaneva, B. Koumanova, Comparative modeling of monoand
    dinitrophenols sorption on yellow bentonite from aqueous
    solutions, J. Colloid Interface Sci., 293 (2006) 303–311. 
 
  -  C.H. Giles, T.H. MacEwan, S.N. Nakhwa, D. Smith, Studies
    in adsorption. Part XI. A system of classification of solution
    adsorption isotherms, and its use in diagnosis of adsorption
    mechanisms and in measurement of specific surface areas of
    solids, J. Chem. Soc., 973 (1960) 3973–3993. 
 
  -  H.B. Senturk, D. Ozdes, C. Duran, Biosorption of Rhodamine
    6G from aqueous solutions onto Almond shell (Prunus dulcis) as
    a low-cost biosorbent, Desalination, 252 (2010) 81–87. 
 
  -  F. Bessaha, K. Marouf-Khelifa, I. Batonneau-Gener,
    A. Khelifa, Characterization and application of heat-treated
    and acid-leached halloysites in the removal of malachite green:
    adsorption, desorption, and regeneration studies, Desal. Water
    Treat., 57 (2016) 14609–14621 
 
  -  M. Saeed, M. Munir, M. Nafees, S.S.A. Shah, H. Ullah, A. Waseem,
    Synthesis, characterization and applications of silylation based
    grafted bentonites for the removal of Sudan dyes: isothermal,
    kinetic and thermodynamic studies, Microporous Mesoporous
  Mater., 291 (2020) 1096–1097.