Synthesis and characterization of porous CaCO3 micro/nano-particles A. Achour, A. Arman, M. Islam, A. A. Zavarian, A. Basim Al-Zubaidi and J. Szade Eur. Phys. J. Plus, 132 6 (2017) 267 Published online: 15 June 2017 DOI: 10.1140/epjp/i2017-11531-8