Fig. 10From: Fly ash-based geopolymers: an emerging sustainable solution for heavy metal remediation from aqueous mediumFA-modified geopolymers SEM images i 6M27; ii 6M45; iii 6M60; iv M27; v 8M45; vi 8M60; vii 10M27; viii 10M45; ix 10M60 [84]Back to article page