Nkrumah, Kwame, and Luca Ferrari. “Characterization of Schiff Base Modified MCM-41 Molecular Sieve for Adsorption of Lead Ions from Aqueous Solution”. Journal of Green Energy and Environmental Engineering, vol. 1, no. 1, July 2023, pp. 78-91, doi:10.64972/jgeee.v1i1.334.