CD Skripsi

Modifikasi Sifat Magnetik Dan Morfologi Partikel Oksida Besi Pasir Alam Sungai Rokan Melalui Doping Tembaga Dan Dipreparasi Dengan Metoda Ball Milling

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ABSTRACT
The magnetic susceptibility, as well as magnetic properties and morphological properties of the natural sand iron oxide nanoparticles have been investigated. The sample were collected from Rokan River, Ujung Batu District, Rokan Hulu Regency, Riau Province. The sample was prepared by ball milling method. Iron Sand Separator and Neodymium Iron Boron (NdFeB) magnet to separate, between Iron Oxide and Non-Iron Oxide particles. The ball milling process was operated in 70 hours using 16 pieces of iron balls with a diameter of 2 cm and is called the BM1 product. The BM1 products were divided into 3 parts with the same amount of weight and each product was doped copper (Cu) with weight concentrations (weight %) of 0 wt%, 5 wt%, and 10 wt%, and the products are called BM2A, BM2B, and BM2C products respectively. The calculation of the magnetic susceptibility of the samples was done based on the total magnetic induction of a solenoid (BT) and magnetic induction of a solenoid (B0) values resulting in susceptibility values decreasing as the percentage of copper doping increased respectively. Vibrating Sample Magnetometer (VSM) shows the loop hysteresis from samples BM2A, BM2B, and BM2C products. Based on the loop hystersis, it shows that the magnetic properties of the iron oxide particles produced, namely saturation magnetization (MS) decreases, the coercivity value (HC) and loop squareness (Mr/MS) grow up with the increase in doping weight concentration, and remanent magnetization (Mr) and the area of loop hysteresis (A) increase and decrease as the concentration of doping increases. Morphology properties and content of iron oxide particles were measured by using Scanning Electron Microscope with Energy Dispersive X-Ray (SEM-EDX). The results show that the particle size varies with the average size obtained decrease with the increase in copper doping (Cu) given, that is 121,960 ± 47,493 nm, 119,730 ± 37,03 nm, and 84,244 ± 34,392 nm. EDX results showed that copper elements increased with increasing doping concentrations given which were, 0.76% before doping (0 wt%), 7,11% after doping (5 wt%), and increased to 8,13 after doping (10 wt%), while elements O, Si, and Fe decreased.
Keyword: Sand, Ball Milling, Copper

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

1903110014

Penerbit

Pekanbaru : Universitas Riau - FMIPA - Fisika., 2023

Deskripsi Fisik

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Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

1903110014

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

FISIKA

Info Detail Spesifik

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Pernyataan Tanggungjawab

TIAR

Versi lain/terkait

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