Bentonite clay: a brief review of properties and applications




Bentonite; Properties; Applications.


Bentonites are clayey materials composed mainly of montmorillonite (a mineral from the smectite group). Their characteristic colloidal composition determines the incorporation of water, forming plastic pastes. Whether sodium or calcium, the bentonites are widely used in numerous industrial applications due to their structural characteristics, availability and abundance in nature, and low cost. The present work aimed to carry out a brief narrative literature review on the potential of bentonite clays regarding their characteristics and some applications. Articles were selected between the years 2017 to 2022 from the Science Direct platform and using the following keywords: bentonite, environmental remediation, cosmetics and pharmaceuticals, biomedicine, and civil construction. The results showed that the most studied area of application was that of environmental remediation connected to investigations in adsorption, which demonstrates the high interest and motivation of researchers in themes related to sustainability. Therefore, it is expected that this preliminary reading can contribute to the understanding of the technological potential of bentonite, bringing clarity to the study of its properties and applications.


Abad, A., & Abad, T. M. (2021). Análise de conteúdo na pesquisa qualitativa. Alternativas Cubanas En Psicología, 10(28), 23–32.

Ahmad, S., & Yasin, A. (2020). Photocatalytic degradation of deltamethrin by using Cu/TiO2/bentonite composite. Arabian Journal of Chemistry, 13(11), 8481–8488.

Allo, W. A., & Murray, H. H. (2004). Mineralogy, chemistry and potential applications of a white bentonite in San Juan province, Argentina. Applied Clay Science, 25(3–4), 237–243.

Amorim, L. V., Dantas Viana, J., Farias, K. V., Rocha Barbosa, M. I., & Ferreira, C. (2006). Estudo Comparativo entre Variedades de Argilas Bentoníticas de Boa Vista, Paraíba. Revista Matéria, 11(1), 30–40.

ANM. (2018). Agência Nacional de Mineração - Bentonita. 1, 3–5.

Babahoum, N., & Ould Hamou, M. (2021). Characterization and purification of Algerian natural bentonite for pharmaceutical and cosmetic applications. BMC Chemistry, 15(1), 1–11.

Baek, M. J., Shin, H. J., Park, J. H., Kim, J., Kang, I. M., Lee, J. I., & Kim, D. D. (2022). Preparation and evaluation of the doxazosin-bentonite composite as a pH-dependent controlled-release oral formulation. Applied Clay Science, 229(August), 106677.

Baltar, Carlos A. M.., Sampaio, João A.. & Oliveira, Glenda A. R.. (2010). Estudo das condições para a modificação superficial de uma Bentonita. (CETEM/UFPE), 39-46. 1.4 Anais_segundo_simposio_minerais_industriais_do_nordeste.pdf

Barbieri, D. M., Lou, B., Dyke, R. J., Chen, H., Zhao, P., Memon, S. A., & Hoff, I. (2022). Calcium bentonite and sodium bentonite as stabilizers for roads unbound. Cleaner Engineering and Technology, 6(June 2021), 100372.

Bonifacio, M. A., Cochis, A., Cometa, S., Scalzone, A., Gentile, P., Procino, G., Milano, S., Scalia, A. C., Rimondini, L., & De Giglio, E. (2020). Advances in cartilage repair: The influence of inorganic clays to improve mechanical and healing properties of antibacterial Gellan gum-Manuka honey hydrogels. Materials Science and Engineering C, 108(November 2019), 110444.

Brito, A. C. O. (2019). Espectroscopia no infravermelho associada à quimiometria para análise da formação de agregados no sistema argila polifosfato (Dissertação de mestrado). Universidade Estadual da Paraíba, Campina Grande, Paraíba, Brasil.

Cavalcanti, G. R. S., Fonseca, M. G., da Silva Filho, E. C., & Jaber, M. (2019). Thiabendazole/bentonites hybrids as controlled release systems. Colloids and Surfaces B: Biointerfaces, 176(December 2018), 249–255.

Coelho, J. M., & Cabral Junior, M. (2010). Estudo prospectivo da bentonita: tendências de mercado (CETEM/UFPE, Ed.). II Simpósio De Minerais Industriais Do Nordeste.

Dardir, F. M., Mohamed, A. S., Abukhadra, M. R., Ahmed, E. A., & Soliman, M. F. (2018). Cosmetic and pharmaceutical qualifications of Egyptian bentonite and its suitability as drug carrier for Praziquantel drug. European Journal of Pharmaceutical Sciences, 115(December 2017), 320–329.

Elshater, A., Elhaddad, A., Elattaar, A., Abugharbia, M., & Soliman, W. (2018). Characterisation of the Egyptian Pliocene bentonite from the Sohag region for pharmaceutical use. Arabian Journal of Geosciences, 11(14).

Favero, J. da S., dos Santos, V., Weiss-Angeli, V., Gomes, L. B., Veras, D. G., Dani, N., Mexias, A. S., & Bergmann, C. P. (2019). Evaluation and characterization of Melo Bentonite clay for cosmetic applications. Applied Clay Science, 175(August 2018), 40–46.

Garnica, A. I. C., Curbelo, F. D. da S., Magalhães, R. R., & De Sousa, R. P. F. (2018). Efeitos De Surfactantes Na Organofilização De Argilas Bentoníticas Para Uso Em Fluidos De Perfuração De Base Microemulsionada. Holos, 4, 89–105.

Gupta, S., & Chaudhary, S. (2022). State of the art review on supplementary cementitious materials in India – II: Characteristics of SCMs, effect on concrete and environmental impact. Cleaner Production, 357, 131945.

Javed, U., Khushnood, R. A., Memon, S. A., Jalal, F. E., & Zafar, M. S. (2020). Sustainable incorporation of lime-bentonite clay composite for production of ecofriendly bricks. Journal of Cleaner Production, 263, 121469.

Karakaya, M. Ç., Karakaya, N., & Bakir, S. (2011). Some properties and potential applications of the Na- and Ca-bentonites of ordu (N.E. Turkey). Applied Clay Science, 54(2), 159–165.

Krishnan, B., & Mahalingam, S. (2017a). Ag/TiO2/bentonite nanocomposite for biological applications: Synthesis, characterization, antibacterial and cytotoxic investigations. Advanced Powder Technology, 28(9), 2265–2280.

Krishnan, B., & Mahalingam, S. (2017b). Improved surface morphology of silver/copper oxide/bentonite nanocomposite using aliphatic ammonium based ionic liquid for enhanced biological activities. Journal of Molecular Liquids, 241, 1044–1058.

Laidani, Z. E. A., Benabed, B., Abousnina, R., Gueddouda, M. K., & Kadri, E. H. (2020). Experimental investigation on effects of calcined bentonite on fresh, strength and durability properties of sustainable self-compacting concrete. Construction and Building Materials, 230, 117062.

Liu, M., Hu, Y., Lai, Z., Yan, T., He, X., Wu, J., Lu, Z., & Lv, S. (2020). Influence of various bentonites on the mechanical properties and impermeability of cement mortars. Construction and Building Materials, 241, 118015.

Luckham, P. F., & Rossi, S. (1999). The colloidal and rheological properties of bentonite suspensions. Advances in Colloid and Interface Science, 82(1), 43–92.

Matos, W. E. de C., da Silva, H. de J. B., da Paz, G. M., & Dos Santos, V. B. (2021). Utilization of sugarcane bagasse ashes as filler or pozzolanic material for the cementitious mortar production: A review. Revista Materia, 26(4).

Meng, B., Guo, Q., Men, X., Ren, S., Jin, W., & Shen, B. (2020). Modified bentonite by polyhedral oligomeric silsesquioxane and quaternary ammonium salt and adsorption characteristics for dye. Journal of Saudi Chemical Society, 24(3), 334–344.

Murray, H. H. (2000). Traditional and new applications for kaolin, smectite, and palygorskite: A general overview. Applied Clay Science, 17(5–6), 207–221.

Murray, H. H. (2007). Occurrences, processing and application of kaolins, bentonite, palygorskite- sepiolite, and common clays. Developments in Clay Science, 2.

Musie, W., & Gonfa, G. (2022). Adsorption of sodium from saline water with natural and acid activated Ethiopian bentonite. Results in Engineering, 14(March), 100440.

Nogueira, H. C. N., Sousa, A. A. P., & Paiva, W. (2022). Bentonita incorporada com rejeito de granito aplicada na pelotização de minério de ferro. Research, Society and Development, 11(4), 1–12.

Nozari, M., Gholizadeh, M., Zahiri Oghani, F., & Tahvildari, K. (2021). Studies on novel chitosan/alginate and chitosan/bentonite flexible films incorporated with ZnO nano particles for accelerating dermal burn healing: In vivo and in vitro evaluation. International Journal of Biological Macromolecules, 184(March), 235–249.

Ramalho, W. J. C. R., Souza, M. F. de, & Ferreira, H. S. (2021). Investigação do efeito viscosificante e estabilizante de argilas hidrofílica e hidrofóbica em fluidos emulsionados de base oleoso. Research, Society and Development, 10(3), e3910312927.

Santos, P. de S. (1989). Ciência e Tecnologia de Argilas (E. Blucher, Ed.; 2o edição).

Shanmugapriya, K., Kim, H., Saravana, P. S., Chun, B. S., & Kang, H. W. (2018). Fabrication of multifunctional chitosan-based nanocomposite film with rapid healing and antibacterial effect for wound management. International Journal of Biological Macromolecules, 118, 1713–1725.

Sundraraja, M., Bama, K., Selvanathan, G., & Ramesh Prabhu, M. (2018). Ionic liquid-mediated: Enhanced surface morphology of silver/manganese oxide/bentonite nanocomposite for improved biological activities. Journal of Molecular Liquids, 249, 1020–1032.

Swain, R., Nandi, S., Sahoo, R. N., Swain, S. S., Mohapatra, S., & Mallick, S. (2022). Bentonite clay incorporated topical film formulation for delivery of trimetazidine: Control of ocular pressure and in vitro-in vivo correlation. Journal of Drug Delivery Science and Technology, 67(1), 102956.

Tadesse, S. H. (2022). Application of Ethiopian bentonite for water treatment containing zinc. Emerging Contaminants, 8, 113–122.

Trigueiro, P., Pedetti, S., Rigaud, B., Balme, S., Janot, J. M., dos Santos, I. M. G., Gougeon, R., Fonseca, M. G., Georgelin, T., & Jaber, M. (2018). Going through the wine fining: Intimate dialogue between organics and clays. Colloids and Surfaces B: Biointerfaces, 166, 79–88.

Tura, N., & Ojanen, V. (2022). Sustainability-oriented innovations in smart cities: A systematic review and emerging themes. Cities, 126(April), 103716.

Yang, H., Long, D., Zhenyu, L., Yuanjin, H., Tao, Y., Xin, H., Jie, W., Zhongyuan, L., & Shuzhen, L. (2019). Effects of bentonite on pore structure and permeability of cement mortar. Construction and Building Materials, 224, 276–283.



How to Cite

FERNANDES, E. F. dos S. .; AGUIAR, E. S. .; LIMA, Érica K. A. de .; ALVES, K. E. da S. .; FARIAS, J. R. de S. .; ALMEIDA, Y. B. A. de .; ALVES, M. E. R. .; SILVA, H. de J. B. da .; BRAGA, A. do N. S. .; SANTOS, V. B. dos . Bentonite clay: a brief review of properties and applications. Research, Society and Development, [S. l.], v. 12, n. 2, p. e7912239917, 2023. DOI: 10.33448/rsd-v12i2.39917. Disponível em: Acesso em: 7 jun. 2023.



Review Article