Synthesis of layered organic–inorganic nanohybrid material: an organic dye, naphthol blue black in magnesium–aluminum layered double hydroxide inorganic lamella

Open lamella systems such as layered double hydroxides (LDHs) can be used to generate new nanostructured materials of layered organic–inorganic nanohybrid type. The synthesis of a new nanocomposite material consisting of inorganic layers, Mg–Al-LDH (MAL) as a host and naphthol blue black (NBB), an organic dye as a guest was successfully done. Various concentrations of NBB, ranging from 0.001 to 0.0015 M were used to prepare the nanocomposite under different Mg/Al molar ratios and pH. The concentration of NBB of 0.0015 M at pH 10 was found to be able to give a well-ordered nanolayered organic–inorganic hybrid structure with basal spacing of 19.6 Å.