Fitrianingsih, Rina (2012) Sintesis Nanopartikel perak (Ag) melalui metode reduksi kimia dengan variasi molar MSA dan karakterisasi struktur kristal dan morfologi / Rina Fitrianingsih. Diploma thesis, Universitas Negeri Malang.
Full text not available from this repository.Abstract
Kata kunci reduksi kimia nanopartikel stabiliser Sintesis nanopartikel perak (Ag) melalui metode reduksi kimia dengan variasi molar MSA dan karakterisasi struktur kristal dan morfologi. Nanosilver is currently one of the most common engineered nanomaterials and is used in many applications that lead to the release of silver nanoparticles and silver ions into aqueous systems. Nanosilver also possesses enhanced antimicrobial activity and bioavailability that may less environmental risk compared with other manufactured nanomaterials. Described in this research are the synthesis of silver nanoparticle produced by chemical reduction from silver nitrate (AgNO3) solution. As a reducing agent Sodium Borohydride (NaBH4) was used and Mercaptosuccinic Acid (MSA) as stabilizer to prevent the nanoparticle from aglomerating. It was also used two kinds of solvent they are water and methanol. In typical experiment MSA was dissolve in methanol with a number of variation of molarity i.e. 0 03 M 0 06 M 0 12 M 0 15 M and the mixture was kept under vigorous stirring in an ice bath. A solution of silver nitrate of 340 mg in 6 792 ml water was added. A freshly prepared aqueous solution of sodium borohydride (756 6 mL in 100 mL of water) was added drop wisely. The solution was kept for half an hour for stirring and were allowed to settle down in methanol. Characterization of the silver nanoparticle conducted by using XRD pattern and Scanning Electron Microscopy (SEM) to obtain their structures of silver nanoparticles morphology and sizes. Experimental result showed that diameter of silver nanoparticle sized about 24 3 nm (Ag MSA 0 03 M) 20 4 nm (Ag MSA 0 06 M) 16 8 nm (Ag MSA 0 12 M) 16 9 nm (Ag MSA 0 15 M) which was calculated by Scherrer formula by taking the FWHM from fitting to Gaussian. The phases and lattice parameter showed that there is no change in volume significantly by increasing molarity of stabilizer. In contrast the size of particles is decreasing
| Item Type: | Thesis (Diploma) |
|---|---|
| Subjects: | Q Science > QC Physics |
| Divisions: | Fakultas Matematika dan IPA (FMIPA) > Departemen Fisika (FIS) > S1 Fisika |
| Depositing User: | library UM |
| Date Deposited: | 29 Oct 2012 04:29 |
| Last Modified: | 09 Sep 2012 03:00 |
| URI: | http://repository.um.ac.id/id/eprint/20566 |
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