The Influence of the Incorporation Method and Mass Ratio of Copper on the Antibacterial Activity of MCM-41
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ORIGINAL PAPER
The Influence of the Incorporation Method and Mass Ratio of Copper on the Antibacterial Activity of MCM-41 Noria Bouchikhi 1 & Mehdi Adjdir 1,2 & Choukry Kamel Bendeddouche 2 & Amina Ramdani 3 & Brahim Guezzen 4 & Hadja Alia Tabti 1 & Elhadi Mohamed Lakhache 1 & Nadir Chami 5 Received: 21 July 2020 / Accepted: 6 October 2020 # Springer Nature B.V. 2020
Abstract This work deals with the use for the first time of waste spent glass as a new source of silicon and aluminum in the synthesis of highly ordered MCM-41 nanomaterials and also treats the method (namely direct and indirect) of its activation by copper under different mass ratios Si/Cu 60; 80 and 100. The evaluation of the activation method efficiency is tested against Gram-negative (E. coli) and Gram-positive (S. aureus and Bacillus cunis). The ordered MCM-41 nanomaterials were prepared by hydrothermal synthesis using the waste spent glass as silicon and aluminum sources. The silicon and aluminum needed for the synthesis of MCM-41 are extracted from waste spent glass by the alkaline fusion process. The copper is added to the MCM by two mentioned methods separately to obtain Cu-MCM-41. The resulting MCM were characterized by X-ray fluorescence (XRF), Inductively Coupled Plasma Optical Emission spectroscopy (ICP-OES), X-ray diffraction (XRD), Nitrogen adsorption-desorption, and Fourier transformed Infra-red spectroscopy (FTIR). Evaluation data revealed that the ordered mesoporous Cu-MCM-41 nanomaterials by both methods under different mass ratios Si/Cu are obtained. The high crystalline order is attributed to the mass ratio Si/Cu 100 for both methods. It is also noted that the specific surface areas of all mass ratios in both methods are up to 1000 m2 g−1. No relationship is found between surface area and substitution method or metal content. Indeed, the efficiency of copper incorporation method of Cu-MCM-41 synthesized under molar ratio (Si/C = 100) in their two different states calcined and un-calcined are applied as antibacterial inhibitors against Gram-negative (E. coli) and Gram-positive (S. aureus and Bacillus cunis). The results obtained by the application of Cu-MCM-41 materials as antibacterial inhibitors appear to be very promising. However, the indirect method shows a slight improvement in antibacterial inhibition compared to the direct method. Keywords Waste spent glass . Alkaline fusion . Cu-MCM-41 mesoporous . Structural and textural properties . Antibacterial activity
* Noria Bouchikhi [email protected] * Mehdi Adjdir [email protected] 1
Department of Chemistry, Faculty of Science, University of Saïda, Dr. Tahar Moulay, 20000 Saida, Algeria
2
Applied Organic Synthesis Laboratory, Faculty of Exact and Applied Sciences, University Oran1 Ahmed Ben Bella, BP 1524 El M’Naouer, 31000 Oran, Algeria
3
Laboratory of Materials & Catalysis, Faculty of Sciences, Site I BP 89 DjillaliLiabès’s University, 22000 SidiBel-Abbès, Algeria
4
Laboratory of Separation and Purification technology, Department of Chemistry, Faculty of
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