2016
DOI: 10.4028/www.scientific.net/msf.841.186
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Cd<sup>2</sup><sup>+ </sup>and Cr<sup>3+</sup> Cation Immobilization by Using Geopolymer Based on PT. IPMOMI Fly Ash

Abstract: This study investigates the immobilization of Cd2+ and Cr3+ by using geopolymer paste based on PT. IPMOMI fly ash. The best composition of geopolimers paste was determined based on the highest magnitude of its 7 days compressive strength. Geopolymer pastes were prepared by varying SiO2/Al2O3 and Na2O/SiO2 molar ratio of the starting materials. X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM) were employed to examined these compositions. The molar ratio of SiO2/Al2O3 6.46 was found to produce the … Show more

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Cited by 14 publications
(5 citation statements)
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“…4 and Table 1 ). 36 As presented in Fig. 4a and Table 1 , all GZ samples composed of major elements such as carbon (C) and nitrogen (N) as representative elements for g-C 3 N 4 as well as silicon (Si), aluminium (Al), and oxygen (O) as representative elements for ZSM-5.…”
Section: Resultsmentioning
confidence: 98%
“…4 and Table 1 ). 36 As presented in Fig. 4a and Table 1 , all GZ samples composed of major elements such as carbon (C) and nitrogen (N) as representative elements for g-C 3 N 4 as well as silicon (Si), aluminium (Al), and oxygen (O) as representative elements for ZSM-5.…”
Section: Resultsmentioning
confidence: 98%
“…These compounds are the source of strength in the concrete with the hydration process. On the other hand, geopolymer concrete is a green technology which is currently being developed [5][6][7][8][9][10][11] for the material structure [12]. The main factor that becomes the appeal of geopolymer concrete is the polymerization process, the process of transforming material alumino-silicate oxide and alkaline activator into polysilicate product that has high mechanical strength without using cement.…”
Section: Introductionmentioning
confidence: 99%
“…Geopolimer memiliki kuat tekan yang lebih baik daripada beton, tahan terhadap pemanasan tinggi dan tahan terhadap asam [2] . Mekanisme kimia yang terjadi antara geopolimer dengan logam adalah logam yang bereaksi dan membentuk jaringan geopolimer dimana ion logam bertindak sebagai keseimbangan muatan, dan dienkapsulasi secara fisik [3] . Ion Pb(II) ini berpartisipasi dalam polikondensasi fase gel Si/Al yang membentuk PbO di dalam jaringan geopolimer [4] .…”
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