Nano alumina was synthesised using precursors from pre-heated kaolinitic clay at 600˚C, 700˚C, and 800˚C following by a bottom-up sol gel method that led to Al(OH) 3 . The latter was subsequently calcinated at 900˚C to form γ -nano alumina ( γ -Al 2 O 3 ). The final products were characterised using X-ray Diffraction (XRD), Fourier transformed infrared Spectroscopy (FTIR), Scanning electron Microscopy (SEM) coupled with Energy dispersive X-ray analysis (EDX) as well as Brunauer-Emmett-Teller (BET) for specific surface area measurement. The γ -nano alumina confirmed by X-ray patterns and infrared spectroscopy was found to be in a poorly crystalized form with 6.8 nm as crystallite size. The specific surface area and the synthesis yield varied with the temperature of pre-heating kaolinitic clay. The best process yield, 17.88%, and specific surface area of 146.78 m 2 /g, was obtained with 700˚C as the best pre-heating temperature of the precursor. Due to the characteristics of the product obtained, they could be very interesting in many applications such as adsorption given their high specific area and nanoscale structure.
Alqahtani, W.M.S., Abdul, N.S., Aslam, K., Alanazi, A., Ansary, N., Alresayes, S.S., et al. (2023) PEEK Surface Treatment on Surface Roughness and Bond Integrity to Composite Resin Utilizing Er: YAG, Rosebengal Activated by PDT, and Aluminum Trioxide Particles. Photodiagnosis and Photodynamic Therapy , 44, Article ID: 103879. https://doi.org/10.1016/j.pdpdt.2023.103879
Yadav, A.K. and Bhattacharyya, S. (2019) Preparation of Porous Alumina Adsorbent from Kaolin Using Acid Leach Method: Studies on Removal of Fluoride Toxic Ions from an Aqueous System. Adsorption , 26, 1073-1082. https://doi.org/10.1007/s10450-019-00193-4
Breky, M.M.E., Borai, E.H. and Kassem, A.T. (2019) Synthesis of High-Grade Alumina from Aluminium Dross and Its Utilization for the Sorption of Radioactive Cobalt. Desalination and Water Treatment , 170, 265-276. https://doi.org/10.5004/dwt.2019.24732
Gonidanga, B.S., Njoya, D., Lecomte-Nana, G. and Njopwouo, D. (2019) Phase Transformation, Technological Properties and Microstructure of Fired Products Based on Clay-Dolomite Mixtures. Journal of Materials Science and Chemical Engineering , 7, 1-14. https://doi.org/10.4236/msce.2019.711001
Teles, F., Martins, G. and Antunes, F. (2022) Fire Retardancy in Nanocomposites by Using Nanomaterial Additives. Journal of Analytical and Applied Pyrolysis , 163, Article ID: 105466. https://doi.org/10.1016/j.jaap.2022.105466
Aghapour, F., Moghadamnia, A.A., Nicolini, A., Kani, S.N.M., Barari, L., Morakabati, P., et al. (2018) Quercetin Conjugated with Silica Nanoparticles Inhibits Tumor Growth in MCF-7 Breast Cancer Cell Lines. Biochemical and Biophysical Research Communications , 500, 860-865. https://doi.org/10.1016/j.bbrc.2018.04.174
Adesina, A.O., Elvis, O.A., Mohallem, N.D.S. and Olusegun, S.J. (2019) Adsorption of Methylene Blue and Congo Red from Aqueous Solution Using Synthesized Alumina-Zirconia Composite. Environmental Technology , 42, 1061-1070. https://doi.org/10.1080/09593330.2019.1652696
Ali, S., Abbas, Y., Zuhra, Z. and Butler, I.S. (2019) Synthesis of γ -Alumina (Al 2 O 3 ) Nanoparticles and Their Potential for Use as an Adsorbent in the Removal of Methylene Blue Dye from Industrial Wastewater. Nanoscale Advances , 1, 213-218. https://doi.org/10.1039/c8na00014j
Sdiri, A., Higashi, T., Bouaziz, S. and Benzina, M. (2014) Synthesis and Characterization of Silica Gel from Siliceous Sands of Southern Tunisia. Arabian Journal of Chemistry , 7, 486-493. https://doi.org/10.1016/j.arabjc.2010.11.007
Potdar, H.S., Jun, K., Bae, J.W., Kim, S. and Lee, Y. (2007) Synthesis of Nano-Sized Porous γ -Alumina Powder via a Precipitation/digestion Route. Applied Catalysis A : General , 321, 109-116. https://doi.org/10.1016/j.apcata.2007.01.055
Behera, P.S., Sarkar, R. and Bhattacharyya, S. (2016) Nano Alumina: A Review of the Powder Synthesis Method. Interceram — International Ceramic Review , 65, 10-16. https://doi.org/10.1007/bf03401148
Ghanizadeh, S., Bao, X., Vaidhyanathan, B. and Binner, J. (2014) Synthesis of Nano α -Alumina Powders Using Hydrothermal and Precipitation Routes: A Comparative Study. Ceramics International , 40, 1311-1319. https://doi.org/10.1016/j.ceramint.2013.07.011
Shojaie-Bahaabad, M. and Taheri-Nassaj, E. (2008) Economical Synthesis of Nano Alumina Powder Using an Aqueous Sol-Gel Method. Materials Letters , 62, 3364-3366. https://doi.org/10.1016/j.matlet.2008.03.012
Tantawy, M.A. and Ali Alomari, A. (2019) Extraction of Alumina from Nawan Kaolin by Acid Leaching. Oriental Journal of Chemistry , 35, 1013-1021. https://doi.org/10.13005/ojc/350313
Nikoofar, K., Shahedi, Y. and Chenarboo, F.J. (2019) Nano Alumina Catalytic Applications in Organic Transformations. Mini - Reviews in Organic Chemistry , 16, 102-110. https://doi.org/10.2174/1570193x15666180529122805
Baba, A.A., Raji, M.A., Muhammed, M.O., Abdulkareem, A.Y., Olasinde, F.T., Ayinla, K.I., et al. (2019) Potential of a Nigerian Biotite-Rich Kaolinite Ore to Industrial Alumina by Hydrometallurgical Process. Metallurgical Research & Technology , 116, Article No. 222. https://doi.org/10.1051/metal/2018076
Said, S., Mikhail, S. and Riad, M. (2020) Recent Processes for the Production of Alumina Nano-Particles. Materials Science for Energy Technologies , 3, 344-363. https://doi.org/10.1016/j.mset.2020.02.001
Zulfiqar, U., Subhani, T. and Husain, S.W. (2016) Synthesis and Characterization of Silica Nanoparticles from Clay. Journal of Asian Ceramic Societies , 4, 91-96. https://doi.org/10.1016/j.jascer.2015.12.001
Fatimah, I., Sumarlan, I. and Alawiyah, T. (2015) Fe(III)/TIO 2 -Montmorillonite Photocatalyst in Photo-Fenton-Like Degradation of Methylene Blue. International Journal of Chemical Engineering , 2015, Article ID: 485463. https://doi.org/10.1155/2015/485463
Kumar, D., Wu, X., Fu, Q., Ho, J.W.C., Kanhere, P.D., Li, L., et al. (2015) Hydrophobic Sol-Gel Coatings Based on Polydimethylsiloxane for Self-Cleaning Applications. Materials & Design , 86, 855-862. https://doi.org/10.1016/j.matdes.2015.07.174
Tchanang, G., Djangang, C.N., Abi, C.F., Moukouri, D.L.M. and Blanchart, P. (2021) Synthesis of Reactive Silica from Kaolinitic Clay: Effect of Process Parameters. Applied Clay Science , 207, Article ID: 106087. https://doi.org/10.1016/j.clay.2021.106087
Kipling, J.J. and Wilson, R.B. (1960) Adsorption of Methylene Blue in the Determination of Surface Areas. Journal of Applied Chemistry , 10, 109-113. https://doi.org/10.1002/jctb.5010100303
Li, X., Ou, Y., Li, C., Zhu, J. and Zhi, P. (2019) Preparation of Alumina from Aluminum Ash by Sintering with Sodium Hydroxide. IOP Conference Series : Earth and Environmental Science , 233, Article ID: 042027. https://doi.org/10.1088/1755-1315/233/4/042027
Njiomou Djangang, C., Lecomte, G.L., Soro, J., Elimbi, A., Blanchart, P. and Njopwouo, D. (2010) Elaboration de céramiques poreuses à base de sciure de bois et de deux argiles du Cameroun. Annales de chimie Science des Matériaux , 35, 1-16. https://doi.org/10.3166/acsm.35.1-16
Kakali, G., Perraki, T., Tsivilis, S. and Badogiannis, E. (2001) Thermal Treatment of Kaolin: The Effect of Mineralogy on the Pozzolanic Activity. Applied Clay Science , 20, 73-80. https://doi.org/10.1016/s0169-1317(01)00040-0
Mazghouni, M., Kbir-Ariguib, N., Counioux, J.J. and Sebaoun, A. (1981) Etude Des Equilibres Solide—Liquide—Vapeur Des Systemes Binaires K 3 PO 4 H 2 O Et Mg 3 (PO) 2 H 2 O. Thermochimica Acta , 47, 125-139. https://doi.org/10.1016/0040-6031(81)85099-x
Salahudeen, N., Ahmed, A.S., Al-Muhtaseb, A.H., Dauda, M., Waziri, S.M. and Jibril, B.Y. (2015) Synthesis of Gamma Alumina from Kankara Kaolin Using a Novel Technique. Applied Clay Science , 105, 170-177. https://doi.org/10.1016/j.clay.2014.11.041
Bich, C., Ambroise, J. and Péra, J. (2009) Influence of Degree of Dehydroxylation on the Pozzolanic Activity of Metakaolin. Applied Clay Science , 44, 194-200. https://doi.org/10.1016/j.clay.2009.01.014
Moutou, J.M., Foutou, P.M., Matini, L., Samba, V.B., Mpissi, Z.F.D. and Loubaki, R. (2018) Characterization and Evaluation of the Potential Uses of Mouyondzi Clay. Journal of Minerals and Materials Characterization and Engineering , 6, 119-138. https://doi.org/10.4236/jmmce.2018.61010
Qtaitat, M.A. and Al-Trawneh, I.N. (2005) Characterization of Kaolinite of the Baten El-Ghoul Region/south Jordan by Infrared Spectroscopy. Spectrochimica Acta Part A : Molecular and Biomolecular Spectroscopy , 61, 1519-1523. https://doi.org/10.1016/j.saa.2004.11.008
Vizcayno, C., de Gutiérrez, R.M., Castello, R., Rodriguez, E. and Guerrero, C.E. (2010) Pozzolan Obtained by Mechanochemical and Thermal Treatments of Kaolin. Applied Clay Science , 49, 405-413. https://doi.org/10.1016/j.clay.2009.09.008
Salvador, S. (1995) Pozzolanic Properties of Flash-Calcined Kaolinite: A Comparative Study with Soak-Calcined Products. Cement and Concrete Research , 25, 102-112. https://doi.org/10.1016/0008-8846(94)00118-i
Autef, A., Joussein, E., Gasgnier, G. and Rossignol, S. (2012) Role of the Silica Source on the Geopolymerization Rate. Journal of Non - Crystalline Solids , 358, 2886-2893. https://doi.org/10.1016/j.jnoncrysol.2012.07.015
Parida, K.M., Pradhan, A.C., Das, J. and Sahu, N. (2009) Synthesis and Characterization of Nano-Sized Porous Gamma-Alumina by Control Precipitation Method. Materials Chemistry and Physics , 113, 244-248. https://doi.org/10.1016/j.matchemphys.2008.07.076
Banerjee, S., Gautam, R.K., Jaiswal, A., Chandra Chattopadhyaya, M. and Chandra Sharma, Y. (2015) Rapid Scavenging of Methylene Blue Dye from a Liquid Phase by Adsorption on Alumina Nanoparticles. RSC Advances , 5, 14425-14440. https://doi.org/10.1039/c4ra12235f
Rahmanpour, O., Shariati, A. and Nikou, M.R.K. (2012) New Method for Synthesis Nano Size γ -Al 2 O 3 Catalyst for Dehydration of Methanol to Dimethyl Ether. International Journal of Chemical Engineering and Applications , 3, 125-128. https://doi.org/10.7763/ijcea.2012.v3.172
Chu, T.P.M., Nguyen, N.T., Vu, T.L., Dao, T.H., Dinh, L.C., Nguyen, H.L., et al. (2019) Synthesis, Characterization, and Modification of Alumina Nanoparticles for Cationic Dye Removal. Materials , 12, Article 450. https://doi.org/10.3390/ma12030450