Badri A., fauzi and Mohadi, Risfidian and Mardiyanto, Mardiyanto and lesbani, Aldes (2022) Adsorptive capacity of malachite green onto Mg/M3+ (M3+=Al and Cr) LDHs (Similarity). Turnitin Universitas Sriwijaya. (Submitted)
Preview |
Text
C_1_c_1_13_Adsorptive_capacity_of_malachite_green_.pdf Download (2MB) | Preview |
Abstract
Layered double hydroxides (LDHs) of MgM3+ (M3+=Al and Cr) were synthesized by coprecipitation method to form Mg/Al and Mg/Cr LDHs. The materials were applied as adsorbents of malachite green in aqueous solution. The physical properties of Mg/Al and Mg/Cr were analyzed using XRD, FTIR, BET and TGDTA characterizations. The XRD pattern shows the characteristic of LDHs which has diffraction at 11.470 (003) and at 34.690 (012) for Mg/Al and 12.450 (003) and at 380 (012) for Mg/Cr. The interlayer spaces of Mg/Al and Mg/Cr LDHs were 7.71 Å and 7.62 Å, respectively. The surface area of Mg/Al was higher than Mg/Cr. The FTIR spectra confirm that the intense peak at 1385 cm-1 denotes vibration of nitrate bond and M-O band in under 1000 cm-1. Thus, the Mg/Al and Mg/Cr LDHs were applied as adsorbents to remove malachite green in aqueous solution. The results of malachite green adsorption showed that malachite green was adsorbed onto Mg/Al and Mg/Cr followed pseudo second order and Langmuir adsorption parameter. The adsorption capacity of malachite green for Mg/Al and Mg/Cr was 44.444 mg/g and 33.784 mg/g, respectively. The thermodynamic study showed that the adsorption process was spontaneous, endothermic and favored in high temperature. The regeneration process showed that Mg/Al and Mg/Cr LDHs has high stability structure toward reusability of adsorbent until three cycles adsorption process.
| Item Type: | Other |
|---|---|
| Subjects: | #3 Repository of Lecturer Academic Credit Systems (TPAK) > Results of Ithenticate Plagiarism and Similarity Checker |
| Divisions: | 08-Faculty of Mathematics and Natural Science > 47102-Chemistry (S2) |
| Depositing User: | Dr.rer.nat Risfidian Mohadi |
| Date Deposited: | 27 Aug 2022 13:27 |
| Last Modified: | 27 Aug 2022 13:27 |
| URI: | http://repository.unsri.ac.id/id/eprint/77853 |
Actions (login required)
 |
View Item |