E. Perez-ramirez, E. Lima, and A. Guzman, Natural betalains supported on ?-alumina: A 509 wide family of stable pigments, Dyes and Pigments, vol.120, pp.161-169, 2015.

C. Anselmi, D. Capitani, A. Tintaru, B. Doherty, A. Sgamellotti et al., Beyond the 511 color : A structural insight to eosin-based lakes, Dyes and Pigments, vol.140, pp.297-311, 2017.

S. Mintova, M. Jaber, and V. Valtchev, Nanosized microporous crystals: emerging 513 applications, Chemical Society Reviews, vol.44, pp.7207-7240, 2015.

K. El-adraa, T. Georgelin, J. F. Lambert, F. Jaber, F. Tielens et al., Cysteine515 montmorillonite composites for heavy metal cation complexation: A combined 516 experimental and theoretical study, Chemical Engineering Journal, vol.314, pp.406-423, 2017.

D. E. Arnold and . Maya, Blue and Palygorskite: A second possible pre-Columbian source

, Ancient Mesoamerica, vol.16, pp.51-62, 2005.

G. H. Cocoletzi and G. Canto, Trapping and diffusion of organic dyes inside of palygorskite 520 clay : The ancient Maya Blue pigment, Microporous and Mesoporous Materials, vol.521, p.249, 2017.

S. Wu, Z. Duan, F. Hao, S. Xiong, W. Xiong et al., , p.523

. Sepiolite-/-rhodamine-b-@, SiO 2 hybrid fl uorescent pigments with high stability, Dyes and Pigments, vol.524, pp.395-402, 2017.

G. Tian, W. Wang, B. Mu, Q. Wang, and A. Wang, Cost-efficient, vivid and stable 526 red hybrid pigments derived from naturally available sepiolite and halloysite, Ceramics, vol.527, pp.1862-1869, 2017.

S. Kittinaovarat, P. Kansomwan, and N. Jiratumnukul, Chitosan / modified montmorillonite beads and adsorption Reactive Red 120, Applied Clay Science, vol.48, pp.87-91, 2010.

M. Jaber, T. Georgelin, H. Bazzi, F. Costa-torro, and G. Clodic, Selectivities in 531 adsorption and peptidic condensation in the (arginine and glutamic acid)/montmorillonite 532 clay system, Journal of Physical Chemistry C, vol.118, pp.25447-25455, 2014.

A. Gil, F. Assis, S. Albeniz, and S. A. Korili, Removal of dyes from wastewaters by 534 adsorption on pillared clays, Chemical Engineering Journal, vol.168, pp.1032-1072, 2011.

A. Gil, L. M. Gandía, and M. A. Vicente, Recent Advances in the Synthesis and Catalytic 536 Applications of Pillared Clays, Catalysis Reviews, p.4940, 2017.

K. Li, J. Lei, G. Yuan, P. Weerachanchai, J. Y. Wang et al., Zr-and Al538 pillared clays for efficient catalytic pyrolysis of mixed plastics, Chemical Engineering 539 Journal, vol.317, pp.800-809, 2017.

V. Tangaraj, J. J. Jaber, M. Bechelany, M. Balme, and S. , Adsorption and photophysical 541 properties of fluorescent dyes over montmorillonite and saponite modified by 542 surfactant, vol.184, pp.1355-1361, 2017.

L. Bergaoui, J. Lambert, H. Suquet, and C. M. , CuII on Al13-Pillared Saponites, p.544

, Macroscopic Adsorption Measurements and EPR Spectra, Journal of Physical 545 Chemistry, vol.99, pp.2155-61, 1995.

F. Tomul, T. Basoglu, F. Canbay, and H. , Determination of adsorptive and catalytic 547 properties of copper, silver and iron contain titanium-pillared bentonite for the removal 548 bisphenol A from aqueous solution, Applied Surface Science, vol.360, pp.579-93, 2016.

Z. Machatova, Z. Barbierikova, P. Poliak, V. Jancovicova, V. Lukes et al., Study of natural anthraquinone colorants by EPR and UV/vis spectroscopy. Dyes 551 and Pigments, vol.550, pp.79-93, 2016.

C. Miliani, . Romani, and G. Favaro, Acidichromic effects in 1, 2-di-and 1, 2, 4553 trihydroxyanthraquinones. A spectrophotometric and fluorimetric study, Journal of 554 Physical Organic Chemistry, pp.141-150, 2000.

V. Vágvölgyi, J. Kovács, E. Horváth, J. Kristóf, and É. Makó, Investigation of 556 mechanochemically modified kaolinite surfaces by thermoanalytical and spectroscopic 557 methods, Journal of Colloids and Interface Science, vol.317, pp.523-532, 2008.

S. Balme, R. Guégan, J. Jaber, M. Lepoitevin, M. Dejardin et al., Structure, 559 orientation and stability of lysozyme confined in layered materials, Soft Matter, vol.560, p.3188, 2013.

D. Cornu, L. Lin, M. M. Daou, M. Jaber, J. Krafft et al., , vol.562

Y. Millot and H. Lauron-pernot, Influence of acid-base properties of Mg-based 563 catalysts on transesterification: role of magnesium silicate hydrate formation, Science Technology, vol.564, pp.1701-1712, 2017.

N. Ksontini, Ã. Wn, and A. Ghorbel, Al-Fe pillared clays : Synthesis , characterization and 566 catalytic wet air oxidation activity, Journal of Physics and Chemistry of Solids, vol.567, pp.1112-1117, 2008.

P. Kumararaja, K. M. Manjaiah, S. C. Datta, and B. Sarkar, Remediation of metal contaminated 569 soil by aluminium pillared bentonite : Synthesis , characterisation , equilibrium study 570 and plant growth experiment, Applied Clay Science, vol.137, pp.115-137, 2017.

C. Ooka, S. Akita, Y. Ohashi, T. Horiuchi, K. Suzuki et al., Crystallization of 572 hydrothermally treated TiO 2 pillars in pillared montmorillonite for improvement of the 573 photocatalytic activity, Journal of Materials Chemistry, pp.2943-52, 1999.

S. Barama, A. Davidson, A. Barama, H. Boukhlouf, S. Casale et al.,

, Dephosphatation under UV light of water by Ti-PILC with activation by secondary 576 species (La, Se, and Rb), Comptes Rendus Chimie, vol.20, pp.7-19, 2017.

X. Liang, F. Qi, P. Liu, G. Wei, X. Su et al., Performance of Ti-pillared 578 montmorillonite supported Fe catalysts for toluene oxidation: The effect of Fe on 579 catalytic activity, Applied Clay Science, pp.96-104, 2016.

L. Chmielarz, Z. Piwowarska, P. Ku?trowski, A. Wegrzyn, B. Gil et al.,

, Comparison study of titania pillared interlayered clays and porous clay heterostructures 582 modified with copper and iron as catalysts of the DeNOx process, Applied Clay 583 Science, vol.53, pp.164-73, 2011.

L. Bergaoui, J. F. Lambert, M. A. Vicente-rodriguez, L. J. Michot, F. Villiéras et al., , p.585

, Synthetic Saponites with Variable Layer Charge Pillared by Al-13 Polycations

, Langmuir, vol.11, pp.2840-52, 1995.

N. D. Hutson, M. J. Hoekstra, and R. T. Yang, Control of microporosity of Al O-pillared clays : 588 effect of pH , calcination temperature and clay cation exchange capacity. Microporous 589 and Mesoporous Materials, 80, vol.28, pp.447-59, 1999.

R. Jalil, M. E. Baschini, M. Rodríguez-castellón, E. Infantes-molina, A. Sapag et al.,

, Effect of the Al/clay ratio on the thiabendazol removal by aluminum pillared clays

, Applied Clay Science, vol.87, pp.245-53, 2014.

R. Giustetto, O. Wahyudi, I. Corazzari, and F. Turci, Applied Clay Science Chemical stability 594 and dehydration behavior of a sepiolite / indigo Maya Blue pigment. Applied Clay 595 Science, vol.52, pp.41-50, 2011.

M. Doskocz, K. Kubas, A. Frackowiak, and R. Gancarz, NMR and ab initio studies of Mg2+, Ca2+, Zn2+, Cu2+ alizarin complexes, Polyhedron, vol.28, pp.2201-2206, 2009.

V. Y. Fain, B. E. Zaitsev, and M. Ryabov, Metal Complexes with, vol.1, pp.5-599, 2004.

, Electronic Absorption Spectra and Structure of Ligands, Russian Journal of Coordination 600 Chemistry, vol.30, pp.385-389

M. Epstein and S. Yariv, Visible-spectroscopy study of the adsorption of alizarinate by Al602 montmorillonite in aqueous suspensions and in solid state, Journal of Colloids Interface 603 Science, vol.263, pp.377-85, 2003.

W. Feng, D. Nansheng, and H. Helin, Degradation mechanism of azo dye C. I. reactive red 2 605 by iron powder reduction and photooxidation in aqueous solutions, Chemosphere, vol.606, pp.1233-1241, 2000.

D. Lencione, M. H. Gehlen, L. N. Trujillo, R. Leitao, and R. Q. Albuquerque, The spatial 608 distribution of the photostability of thionine in zeolite L nanochannels investigated by 609

, Photobleaching Lifetime Imaging Microscopy. Photochemical and Photobiology 610 Science, vol.15, pp.398-404, 2016.

T. Wu, G. Liu, J. Zhao, H. Hidaka, and N. Serpone, Evidence for H2O2 Generation during the 612

, TiO2-Assisted Photodegradation of Dyes in Aqueous Dispersions under Visible Light 613

, Illumination. Journal of Physical Chemistry B, vol.103, pp.4862-4869, 1999.