Controlled-surfactant-directed solvothermal synthesis of γ-Al2O3 nanorods through a boehmite precursor route

Ceramic one-dimensional particles are fascinating nanomaterials for sustainable future industries. Nanorods of γ-Al 2 O 3 with single crystallinity and 10 nm diameter regime were newly developed through solvothermal procedure between AlCl 3 ·6H 2 O, NaOH, and sodium dodecylbenzene sulfonate at 200 °C for 24 h. Controlling the pH values, reaction time, temperature, and effect of surfactant during the solvothermal reaction was studied to control the morphology and structure of nanorods. The solvothermal procedure for preparing γ-AlOOH nanorods followed lamellar growth, assembly, and ripening routes. The γ-AlOOH nanorods were converted to γ-Al 2 O 3 through calcination reaction at 500 °C for 3 h. The produced γ-Al 2 O 3 nanorods were 10 nm average width, 100–200 nm average length, and exposed with [101] orientation and a linear structure. FTIR, HRTEM , FESEM, XRD , and X-ray photoelectron spectroscopy methods were used for characterizing the prepared nanomaterials . New features and applied fields are predictable for the designed γ-AlOOH and γ-Al 2 O 3 nanorods.