Hydroxyapatite incorporated geopolymer porous adsorbent for efficient removal of copper ions and ciprofloxacin. - Arokiasamy, Pilomeena; Abdullah, Mohd Mustafa Al Bakri; Arifi, Eva; Razak, Rafiza Abdul; Rojviriya, Catleya; Mydin, Md Azree Othuman; Sandu, Andrei Victor; Yaacob, Noorulayuni Atiqah; Mohamed, Rosnita (Journal of the American Ceramic Society, 2025)