Skripsi

PENGARUH PERBEDAAN METODA EKSTRAKSI HIDROTERMAL DAN KALSINASI TERHADAP KARAKTERISTIK SILIKA DARI TONGKOL JAGUNG

---

Penilaian

---

The research by title effect of the differences hydrotermal extraction methods and calcination the characterization of silika from corn cob has been performed. Corncob is extracted by hydrothermal variation NaOH concentration methods 0.5;1.0; 1.5 and 2.0 M and calcination methods with temperature variations 600, 700 and 800oC, to obtain silica powder and on hydrothermal methods with NaOH concentration variations have yield value of 2-3.8% and on the calcination method have yield value at 2-3.31%. Next in characterization using XRD, FTIR and determining surface width using the Methylene blue method. The best XRD characterization results on the hydrothermal method is at NaOH 2.0 M because it shows an angle 2θ = 28.05o with amorphous phase and has a smaller particle size of 0.164 nm, while the best XRD results on the calcination method are 600oC because it shows an angle 2θ = 20.07o with a crystalline phase and has the smallest particle size of 1.464 nm. Best results from the next XRD in the characterization using FTIR. The FTIR results from both methods show a decrease in the specific function of silica, namely Si-O in the number of waves around 1000-500 cm-1 and Si-OH in the number of waves around 3500-1600 cm-1. The result of a surface determination using the methylene blue method, the largest surface area in the hydrothermal method is at NaOH 2.0 M, which is 13.704 m2/g, and the largest surface area in the calcination method is at 600oC, which is 12.704 m2/g. Based on the results of the comparisons of both methods that the silica obtained in the hydrothermal method has a greater yield value, and surface widths than the calcination method, in the hydrothermal method also has an amorphous phase while the calcination method has a crystalline phase. But the silica produced by the calcination method is whiter than the hydrothermal method.

---

Availability

Inventory Code	Barcode	Call Number	Location	Status
2007001869	T38625	T386252020	Central Library (REFERENCES)	Available but not for loan - Not for Loan

Detail Information

Series Title

-

Call Number

T386252020

Publisher

Inderalaya : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Sriwijaya., 2020

Collation

xvi, 55 hlm. : ilus. ; 21 cm

Language

Indonesia

ISBN/ISSN

-

Classification

547.207

Content Type

Text

Media Type

unmediated

Carrier Type

-

Edition

-

Subject(s)

Jurusan Kimia
Reaksi Kimia Organik-Silika Tongkol Jagung

Specific Detail Info

-

Statement of Responsibility

DS

Other version/related

File Attachment

Comments

---

You must be logged in to post a comment