Production of Activated Carbon from Coffee Grounds Using Chemical and Physical Activation Method

Yuliusman, Yuliusman; Nasruddin, Nasruddin; Afdhol, Muhammad Khairul; Haris, F; Amiliana, Rahmatika Alfia; Hanafi, Afdhal; Ramadhan, Imam

doi:10.1166/asl.2017.8822

Cited by 20 publications

(6 citation statements)

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“…The conditions during the preparation of used coffee grounds and the type of coffee powder can cause this difference. [12]. The activated carbon was washed with hydrochloric acid solution and distilled water to remove impurities.…”

Section: Results and Discussion Preparation Of Used Coffee Groundsmentioning

confidence: 99%

The Performance of Activated Carbon from Used Coffee Grounds Combined with Iron(III) Oxide under UV Light and Ultrasound for Phenol Degradation

Dinira¹,

Rumhayati²,

Wiryawan³

2021

J. Pure App. Chem Res

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Coffee consumption over the past four years has continued to increase the amount of used coffee grounds. Usually, the used coffee grounds are simply thrown away. In fact, it can still be used as other materials that are more efficient and environmentally friendly, such as activated carbon. Activated carbon can be utilized as an adsorbent to adsorb compounds that are carcinogenic and potentially last a long time in the environment, such as phenols. Phenol decomposition through chemical can be carried out by Advanced Oxidation Process (AOP) which utilize hydroxyl radicals. This method used a catalyst such as iron(III) oxide under ultraviolet light. Phenol decomposition can also be carried out using ultrasound. This study presents the performance of the combination of activated carbon-catalyst with ultrasound in phenol decomposition. The results showed that the mass of the composite influenced the 0.1 M phenol degradation by the activated carbon–iron(III) oxide assisted with ultraviolet light, ultrasound, and 0.01 M hydrogen peroxide. for 45 minutes. The best degradation of phenol was obtained when 0.5 g adsorbent was applied with the adsorption capacity of phenol was 704.37 mg/g. The concentration of hydrogen peroxide also affects the decomposition of phenol in solution. From the variation of the hydrogen peroxide solution used (0.01; 0.02; and 0.03 M), the optimal concentration in degrading phenol was 0.01 M with the adsorption capacity of phenol was 393.70 mg/g.

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Section: Results and Discussion Preparation Of Used Coffee Groundsmentioning

confidence: 99%

The Performance of Activated Carbon from Used Coffee Grounds Combined with Iron(III) Oxide under UV Light and Ultrasound for Phenol Degradation

Dinira¹,

Rumhayati²,

Wiryawan³

2021

J. Pure App. Chem Res

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“…Figure 2 shows that the surface area increased from 39.06 m 2 /g to 588.41 m 2 /g with activation times of 15 and 120 min, respectively, and then decreased to 535.62 m 2 /g with longer activation time (180 min). In the activation process, superheated CO2 diffuses into the inner precursor which burns the blockage of the byproducts, expands the pore, and increases the surface area (Lan et al, 2019;Yuliusman et al, 2017). The activation reaction can be seen below (Cheremisinoff dan Ellerbusch, 1978).…”

Section: Bet Analysis and Activation Time Selectionmentioning

confidence: 99%

Characterization and Application of Mangosteen Peel Activated Carbon for Ammonia Gas Removal

Hanami

Lestari

2021

Environ. Nat. Resour. J.

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Mangosteen peel can be used as an activated carbon precursor because of its high lignin content and hardness. In this study, mangosteen peel activated carbon (MP-AC) was prepared by a physical activation method using CO2 at 850°C. The Brunauer-Emmett-Teller (BET) analysis was used to assess the optimal activation time to identify the largest surface area. The properties of MP-AC were characterized by the SEM-EDS and FTIR analyses. The results showed that MP-AC obtained from the 120-minute activation time had the largest BET specific surface area of 588.41 m2/g and was selected as an adsorbent in the dynamic adsorption of ammonia gas. The values of moisture content, ash content, and iodine number of MP-AC were 6.07%, 9.8%, and 1153.69 mg/g, respectively. Breakthrough curve indicated that with lower inlet concentration and higher adsorbent mass, longer breakthrough time is reached. Equilibrium data was best fitted to the Langmuir isotherm, while the pseudo-first order kinetic model favorably described the adsorption kinetics. The results revealed a potential to utilize MP-AC as an adsorbent for ammonia gas removal with average NH3 adsorption capacity of 0.41 mg/g.

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“…[12]. Coffee beans and overall coffee residues are carbonaceous materials that have been reported as efficient and viable feedstocks for activated carbon production, mainly due to their large worldwide production [13], [14]. For example, in the United Arab Emirates (UAE), more than 2 billion tons of coffee waste are produced annually [15].…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon Production from Coffee Waste via Slow Pyrolysis Using a Fixed Bed Reactor

Inayat

Rocha‐Meneses

Said

et al. 2022

Environmental and Climate Technologies

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Pyrolysis is a thermochemical process commonly used for bio-oil, bio-char, and syngas production. It is particularly attractive due to its cost-effectiveness and low environmental impact. Therefore, this study utilizes coffee waste to produce activated carbon in a slow pyrolysis reactor at different reaction temperatures and residence times. The results obtained in this study show that bio-oil yields tend to increase when moderate reaction temperatures and short residence times are used. In contrast, the bio-char yields are higher at low reaction temperatures and long residence times. The Scanning Electron Microscopic (SEM) images of the coffee waste, bio-char, and activated carbon indicate that the pore size of the bio-char tends to decrease due to heating and tends to increase in the area after using ZnCl2 as activating agent. Coffee waste is a suitable feedstock for activating carbon production.

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Production of Activated Carbon from Coffee Grounds Using Chemical and Physical Activation Method

Cited by 20 publications

References 0 publications

The Performance of Activated Carbon from Used Coffee Grounds Combined with Iron(III) Oxide under UV Light and Ultrasound for Phenol Degradation

The Performance of Activated Carbon from Used Coffee Grounds Combined with Iron(III) Oxide under UV Light and Ultrasound for Phenol Degradation

Characterization and Application of Mangosteen Peel Activated Carbon for Ammonia Gas Removal

Activated Carbon Production from Coffee Waste via Slow Pyrolysis Using a Fixed Bed Reactor

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