Abstract
This study reported a simple eco-friendly synthesis of semi-amorphous hollow calcium silicate hydrates nanoparticles (HCSHNP). Results showed that HCSHNP is relatively in uniform hollow nano-size ranges from (60 to 100) nm and exhibited stable surface morphology (ultra microporous). Hence, it contains an external and internal surface that can be selectively functionalized with multiple organic and inorganic groups. Hence, this work may open a new route to prepare new hybrid hollow bio-active particles for biological and nano-cement science application.