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Performance Assessment of Alkaline Earth Metal Silicates for Lauric Acid Removal: An Analytical Hierarchy Process (AHP) Approach

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Abstract:

This study investigated the potential of acid-pretreated rice husk ash (RHA) sourced alkaline earth metal silicates for lauric acid (LA) adsorption. The synthesized materials were characterized using BET, FTIR, XRD, EDS, and SEM analyses, demonstrating that metal cation size had a notable effect on surface area, pore structure, crystallinity, and particle aggregation. Magnesium silicate (MS-1.0), with its smaller atomic radius, exhibited the highest surface area and the most porous structure among the samples. Calcium silicate (CS-1.0) displayed a moderate surface area with a mesoporous structure, while strontium silicate (SS-1.0), having the largest atomic radius, exhibited the lowest surface area, a predominantly macroporous structure and the highest degree of particle aggregation. The synthesized alkaline earth metal silicates were tested for LA adsorption performance and compared using the analytical hierarchy process (AHP). CS-1.0 demonstrated the highest LA removal efficiency (59.94% ± 11.24%) and adsorption capacity (8.68 ± 1.60 mmol/g), while MS-1.0 had the lowest removal efficiency (17.64 ± 3.28%) and adsorption capacity (2.60 ± 0.50 mmol/g). Interestingly, the production yield increased from MS-1.0 to CS-1.0 and SS-1.0. Through the AHP method, CS-1.0 was identified as the best-performing adsorbent in this study, considering both adsorption efficiency and production yield with the highest priority value of 0.9603.

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Periodical:

Key Engineering Materials (Volume 1028)

Pages:

73-78

DOI:

https://doi.org/10.4028/p-9rRcvf

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Online since:

October 2025

Authors:

Zainor Syahira Zainal, Peng Yong Hoo*, Abdul Latif Ahmad, Ahmad Zuhairi Abdullah, Qi Hwa Ng, Siew Hoong Shuit, Siti Kartini Enche Ab Rahim, Jeyashelly Andas

Keywords:

Adsorption, Alkaline Earth Metal Silicate, Analytical Hierarchy Process, Rice Husk

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© 2025 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

References

[1] P. J. Fellows, "Frying," in Food Processing Technology, Elsevier, 2017, p.783–810.

DOI: 10.1016/B978-0-08-100522-4.00018-3

Google Scholar

[2] S. B. Kumar, U. S. Sushma, L. Chandrasagar, V. B. Raju, and V. Devi, "Use of Waste Frying Oil as CI Engine Fuel—A Review," OALib, vol. 04, no. 11, p.1–33, 2017.

DOI: 10.4236/oalib.1103958

Google Scholar

[3] A. Mannu et al., "Recycling of used vegetable oils by powder adsorption," Waste Manag. Res. J. Sustain. Circ. Econ., vol. 41, no. 4, p.839–847, Apr. 2023.

DOI: 10.1177/0734242X221135336

Google Scholar

[4] M. Rasman et al., "Engineering properties of bitumen modified with bio-oil," MATEC Web Conf., vol. 250, p.02003, 2018.

DOI: 10.1051/matecconf/201825002003

Google Scholar

[5] Y. Zou and T. Yang, "Rice Husk, Rice Husk Ash and Their Applications," in Rice Bran and Rice Bran Oil, Elsevier, 2019, p.207–246.

DOI: 10.1016/B978-0-12-812828-2.00009-3

Google Scholar

[6] M. Thommes et al., "Physisorption of gases, with special reference to the evaluation of surface area and pore size distribution (IUPAC Technical Report)," Pure Appl. Chem., vol. 87, no. 9–10, p.1051–1069, Oct. 2015.

DOI: 10.1515/pac-2014-1117

Google Scholar

[7] M. Garai, N. Sasmal, and B. Karmakar, "Effects of M 2+ (M = Ca, Sr, and Ba) Addition on Crystallization and Microstructure of SiO 2 -MgO-Al 2 O 3 -B 2 O 3 -K 2 O-F Glass," Indian J. Mater. Sci., vol. 2015, p.1–8, Aug. 2015.

DOI: 10.1155/2015/638341

Google Scholar

[8] S. Hayashi, S. Hatano, T. Kobayashi, N. Saito, and K. Nakashima, "Effect of cation addition on silica scale on glass surfaces," Int. J. Ceram. Eng. Sci., vol. 6, no. 2, p. e10203, Mar. 2024.

DOI: 10.1002/ces2.10203

Google Scholar

[9] N. Ghosh, S. Roy, A. Bandyopadhyay, and J. A. Mondal, "Vibrational Raman Spectroscopy of the Hydration Shell of Ions," Liquids, vol. 3, no. 1, p.19–39, Dec. 2022.

DOI: 10.3390/liquids3010003

Google Scholar

[10] K. J. Lee and Y.-H. Wang, "Effect of Alkaline Earth Metal on AZrOx (A = Mg, Sr, Ba) Memory Application," Gels, vol. 8, no. 1, p.20, Dec. 2021.

DOI: 10.3390/gels8010020

Google Scholar

[11] N. F. Sulaiman, N. I. Ramly, M. H. Abd Mubin, and S. L. Lee, "Transition metal oxide (NiO, CuO, ZnO)-doped calcium oxide catalysts derived from eggshells for the transesterification of refined waste cooking oil," RSC Adv., vol. 11, no. 35, p.21781–21795, 2021.

DOI: 10.1039/D1RA02076E

Google Scholar

[12] J. Kaur, D. K. Nandy, B. Arora, and B. K. Sahoo, "Properties of alkali-metal atoms and alkaline-earth-metal ions for an accurate estimate of their long-range interactions," Phys. Rev. A, vol. 91, no. 1, p.012705, Jan. 2015.

DOI: 10.1103/PhysRevA.91.012705

Google Scholar