Synthesis and characterization of graphite/magnetite composite as low cost potential adsorbent from graphite waste

Eny Kusrini, Felix Oktavianto, Agustina Simanjuntak, Giovanni Pasca, Anwar Usman

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

The comparative properties of pre-treated graphite waste and composite with magnetite nanoparticles were studied. The present work describes the thermal-mechanical method for pre-treated graphite electrode waste and chemical modification on the pre-treated graphite waste with magnetite nanoparticles (Fe 3 O 4 ). The raw material is graphite electrode waste. The variables of temperature and time that affected the properties of pre-treated graphite waste was also observed. Pre-treated of graphite electrode waste was prepared via thermal process at temperatures of 60, 75, 90°C and various times of 30, 60 and 90 minutes, followed by mechanical crushing of the resultant graphite waste to 75 μm particle size. The synthetic material (graphite waste/Fe 3 O 4 composite) was prepared with hydrochloric acid (0.1 M) for activation of the pre-treated graphite waste, followed by chemical modification with pre-treated graphite waste to Fe 3 O 4 mass ratio 1: 1 (w/w). The experimental results showed that the pre-treated graphite waste are non-porous. Effect of magnetite nanoparticles (Fe 3 O 4 ) revealed that the surface area of graphite waste/Fe 3 O 4 composite increased from 8.44 m 2 /g to 64.58 m 2 /g. The EDX composition of Fe increased from 0.08 to 38.68 wt%, indicated that the modification of Fe 3 O 4 nanoparticles onto graphite waste was carried out successfully. This data is useful for the preliminary treatment process of graphite electrode waste for further applications that require adsorbent preparation and modification.

Original languageEnglish
Article number03029
JournalE3S Web of Conferences
Volume67
DOIs
Publication statusPublished - 26 Nov 2018
Event3rd International Tropical Renewable Energy Conference "Sustainable Development of Tropical Renewable Energy", i-TREC 2018 - Kuta, Bali, Indonesia
Duration: 6 Sep 20188 Sep 2018

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