Spent coffee grounds-based activated carbon preparation for sequestering of malachite green

2016 ◽  
Author(s):  
Jun-Wei Lim ◽  
Keat-Ying Lam ◽  
Mohammed J. K. Bashir ◽  
Yin-Fong Yeong ◽  
Man-Kee Lam ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Malachite Green ◽  
Spent Coffee Grounds ◽  
Coffee Grounds

scholarly journals Malachite Green Adsorption by Spent Coffee Grounds

2018 ◽  
Vol 318 ◽  
pp. 012015 ◽  
Author(s):  
Siti Syamimie Atirah Mat ◽  
Sharifah Zati Hanani Syed Zuber ◽  
Siti Kartini Enche Ab Rahim ◽  
Khairunissa Syairah Ahmad Sohaimi ◽  
Noor Amirah Abdul Halim ◽  
...  
Keyword(s):  
Malachite Green ◽  
Spent Coffee Grounds ◽  
Coffee Grounds

scholarly journals High yield carbonization and mesoporous activated carbon production from acid-treated spent coffee grounds

TANSO ◽  
2018 ◽  
Vol 2018 (282) ◽  
pp. 49-54
Author(s):  
Keisuke Kikuchi ◽  
Rie Yamashita ◽  
Satoshi Sakuragawa ◽  
Yukie Saito
Keyword(s):  
Activated Carbon ◽  
High Yield ◽  
Spent Coffee Grounds ◽  
Carbon Production ◽  
Coffee Grounds ◽  
Mesoporous Activated Carbon

High yield carbonization and mesoporous activated carbon production from acid-treated spent coffee grounds

Carbon ◽  
2021 ◽  
Vol 175 ◽  
pp. 607
Author(s):  
Keisuke Kikuchi ◽  
Rie Yamashita ◽  
Satoshi Sakuragawa ◽  
Yukie Saito
Keyword(s):  
Activated Carbon ◽  
High Yield ◽  
Spent Coffee Grounds ◽  
Carbon Production ◽  
Coffee Grounds ◽  
Mesoporous Activated Carbon

scholarly journals Activated Carbon from Spent Coffee Grounds: A Good Competitor of Commercial Carbons for Water Decontamination

2020 ◽  
Vol 10 (16) ◽  
pp. 5598
Author(s):  
Egle Rosson ◽  
Francesco Garbo ◽  
Giovanni Marangoni ◽  
Roberta Bertani ◽  
Maria Cristina Lavagnolo ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Adsorption Capacity ◽  
Partition Coefficients ◽  
Activated Carbons ◽  
Organic Dyes ◽  
Bromothymol Blue ◽  
Order Kinetic ◽  
Spent Coffee Grounds ◽  
Lower Efficiency ◽  
Coffee Grounds

In the framework of the circular economy, spent coffee grounds were converted into powdered activated carbon by means of pyrolysis, using potassium hydroxide as the activating agent. Its adsorption capacity on a panel of phenolic compounds was compared with those of two commercial powdered activated carbons, after preliminary studies on organic dyes with different ionic properties, to assess the affinity between adsorbates and adsorbents. Pseudo-first-order and pseudo-second-order kinetic models were carried out, together with Freundlich and Langmuir isotherms. They were useful to calculate the breakthrough at 5%, 10%, and 50% of adsorption and the partition coefficients for the comparison of performance between different sorbent systems in a less biased manner (e.g., reducing bias associated with operational settings like sorbate concentration and sorbents dosage). The results showed that the removal efficiency for SCGs-AC was comparable with that of the commercial activated carbons with the highest partition coefficients for methylene blue (12,455 mg/g/μM, adsorption capacity = 179 mg/g) and 3-chlorophenol (81.53 mg/g/μM, adsorption capacity = 3765 mg/g). The lower efficiency in bromothymol blue and bisphenol-A adsorption was due to its different morphology and surface properties.

Study of Rhodamine B adsorption onto activated carbon from spent coffee grounds

2020 ◽  
Author(s):  
Teguh Wirawan ◽  
Soerja Koesnarpadi ◽  
Nanang Tri Widodo
Keyword(s):  
Activated Carbon ◽  
Rhodamine B ◽  
Spent Coffee Grounds ◽  
Coffee Grounds

Pore structure and chemical composition of activated carbon derived from composted spent coffee grounds

Carbon ◽  
2021 ◽  
Vol 175 ◽  
pp. 604
Author(s):  
Keisuke Kikuchi ◽  
Rie Yamashita ◽  
Satoshi Sakuragawa ◽  
Takuya Saeki ◽  
Koji Oikawa ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Chemical Composition ◽  
Pore Structure ◽  
Spent Coffee Grounds ◽  
Coffee Grounds
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