Preparation and Characterization of Graphite Waste/CeO<sub>2</sub>Composites

Kusrini, Eny; Utami, C S; Nasruddin, Nasruddin; Prasetyanto, EA; Bawono, Aji Agraning

doi:10.1088/1757-899x/316/1/012030

Cited by 2 publications

(6 citation statements)

References 8 publications

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“…Among the three graphite modifications with metal salt (Ce(NO3)3.6H2O), the highest adsorption capacity (0.1574 kg/kg) was given by G0.5 composite. From our previous report, the surface area of G0.5 is 20.03 m 2 /g (Kusrini et al, 2018a). For comparison, GBM and G2 have a surface area of 26.35 and 26.82 m 2 /g respectiely, which is slightly larger than G0.5 composite.…”

Section: Surface Area Analysismentioning

confidence: 80%

“…The graphite/CeO2 composites were prepared according to the method reported by Kusrini et al (2018a), and were used as the adsorbent for CO2 capture in this study. Ce(NO3)3.6H2O and CeO2 were purchased from R & M Chemicals (Essex, UK).…”

Section: Methodsmentioning

confidence: 99%

“…Previously, the applicability of graphite waste and graphite waste/Fe3O4 composites as sorbents for capturing CO2 has been reported (Kusrini et al, 2017), including improved CO2 adsorption capacities using graphite waste on magnetic nanoparticle Fe3O4 impregnation. A study by Kusrini et al (2018a) has reported the synthesis and development of graphite waste/CeO2 composites synthesized using pre-treated by mechanical-thermal methods and then followed by chemical modification with Ce salt (Ce(NO3)3.6H2O). It is expected that the presence of Ce 3+ ions on the surface of the graphite waste is able to change the structure of the graphite surface, supply more redox-active sites and elevate the surface area.…”

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confidence: 99%

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CO2 Capture using Graphite Waste Composites and Ceria

Kusrini¹,

Utami

Usman

et al. 2018

IJTech

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Solid sorbents based on graphite electrode waste and cerium oxide (ceria, CeO2) have been studied with regard to CO2 capture. The acid-base properties of cerium oxide produce a sorbent for the capture of CO2. The aim of the study is to evaluate the performance of CO2 capture using graphite/CeO2 composites at different weights of Ce(NO3)3.6H2O (0.5, 1 and 2 g), namely G0.5, G1 and G2, respectively. Volumetric adsorption studies of CO2 on graphite/CeO2 composites and ceria were conducted at various pressures (P) of 3, 5, 8, 15 and 20 bar, and temperatures (T) of 303, 308, 318 K. Graphite waste before modification (GBM), activated graphite waste (GA), and CeO2 for capturing CO2 were also investigated. By varying the two parameters (P and T), we found that the maximum adsorption capacities of CO2 at 303 K and 20 bar were 0.0713, 0.0316, 0.1574, 0.0987, 0.1137, and 0.0964 kg/kg respectively, for GBM, GA, G0.5, G1, G2 and CeO2. The highest adsorption capacity of CO2 was found in the G0.5 composite. The adsorption performance of CO2 using ceria was almost similar to the G1 composite. We found that CO2 adsorption capacity decreases with an increasing temperature from 303 to 318 K. It was concluded that ceria and composite graphite waste/CeO2 are stable and selective CO2 sorbents. The work allows us to synthesize a new sorbent which can be effectively applied for CO2 capture. The adsorption capacity of CO2 depends significantly on the active site and chemical modifier of the sorbents.

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Section: Surface Area Analysismentioning

confidence: 80%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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CO2 Capture using Graphite Waste Composites and Ceria

Kusrini¹,

Utami

Usman

et al. 2018

IJTech

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“…Graphite electrode waste can be obtained from the electrolysis processing waste from the aluminum industry. The composition of graphite electrode waste is carbon [4][5][6][7]. The characterization and application of graphite waste after chemical modification have been reported as potential adsorbents for removal of CO2 [4,5], and dyes [6].…”

Section: Introductionmentioning

confidence: 99%

“…The characterization and application of graphite waste after chemical modification have been reported as potential adsorbents for removal of CO2 [4,5], and dyes [6]. After treatment of graphite waste by thermal and mechanical methods, the surface area of graphite electrode wastes was variable: 5.9 m 2 /g [6], 8.49 m 2 /g [4], and 26.35 m 2 /g [7]. By surface modification with chemical treatment using Fe3O4 nanoparticles, the surface area of pre-treated graphite waste increase up to 35.52 m 2 /g [4].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2018

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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 (Fe3O4). 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/Fe3O4 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 Fe3O4 mass ratio 1: 1 (w/w). The experimental results showed that the pre-treated graphite waste are non-porous. Effect of magnetite nanoparticles (Fe3O4) revealed that the surface area of graphite waste/Fe3O4 composite increased from 8.44 m2/g to 64.58 m2/g. The EDX composition of Fe increased from 0.08 to 38.68 wt%, indicated that the modification of Fe3O4 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.

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Preparation and Characterization of Graphite Waste/CeO₂Composites

Cited by 2 publications

References 8 publications

CO2 Capture using Graphite Waste Composites and Ceria

CO2 Capture using Graphite Waste Composites and Ceria

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

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Preparation and Characterization of Graphite Waste/CeO2Composites

Cited by 2 publications

References 8 publications

CO2 Capture using Graphite Waste Composites and Ceria

CO2 Capture using Graphite Waste Composites and Ceria

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

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Preparation and Characterization of Graphite Waste/CeO₂Composites