Decorated multi-walled carbon nanotubes with Sm doped fluorapatites: synthesis, characterization and catalytic activity

摘要: Novel and sustainable heterogeneous catalysts, namely, multi-walled carbon nanotubes (MWCNT) decorated with Sm doped fluorapatite nanocomposites (MWCNT/Sm-FAp) were prepared by facile co-precipitation method using glutamic acid as an organic modifier different loadings of (1%, 2%, 3%, 5%, 7%). The characterized powder X-ray diffraction (PXRD), Fourier transform infra-red spectroscopy (FT-IR), microscopic techniques (FESEM, HRTEM), energy dispersive spectrometer (EDX) Brunauer–Emmett–Teller (BET) surface area, thermogravimetric analysis (TGA). SEM TEM results confirmed that varying loading, the attained varied particles sizes in nano-grade scale morphologies. N2 adsorption isotherm showed BET area enhanced from MWCNT/1% Sm-FAp (47.60 m2 g−1) to MWCNT/7% (62.00 g−1). robust catalytic behavior MWCNT/Sm-FAp impressively showcased esthetic highly selective synthesis 1,2,4-triazole moiety aromatic aldehydes. efficiency increased rise Sm% 1% 5% nanocomposite. With MWCNTs/5% nanocomposite catalyst, reaction recorded 96% yield triazole short times (10 min).