Fabrication of microporous hollow silica spheres templated by NP-10 micelles without calcinations

▶ Nonionic surfactant nonyl phenol ethoxylated decylether (NP-10) was used as template to fabricate silica hollow spheres. ▶ Size and morphologies of the hollow spheres could be tuned by changing the concentration of silica sodium or core materials. ▶ The core materials were removed by ethanol during the reaction. ▶ Neither calcinations process nor solvent etching was necessary to remove the core materials.