| Publication Type |
Journal Article |
| Title |
Apple tree branches derived activated carbons for the removal of beta-blocker atenolol |
| Authors |
Susana C. R. Marques Ana S. Mestre Miguel Machuqueiro Andreja Zgajnar Gotvajn Marjan Marinsek Ana P. Carvalho |
| Groups |
Chem4Env |
| Journal |
CHEMICAL ENGINEERING JOURNAL |
| Year |
2018 |
| Month |
August |
| Volume |
345 |
| Number |
|
| Pages |
669-678 |
| Abstract |
This work approaches the preparation of KOH and K2CO3 activated carbons from apple tree small branches char with activation yields around 40\%, and apparent surface areas up to 2472 m(2) g(-1). The treatment duration had a marked impact on the micropore structure, causing the widening of the narrow micropores to supermicropores. The adsorption characteristics of lab-made carbons for atenolol removal from aqueous phase was assessed by kinetic and equilibrium experiments. Monolayer adsorption capacities between 346 and 556 mg g(-1) were achieved. The commercial atenolol, consisting in a racemic mixture, gave rise to a two-step thermal decomposition process. Thermogravimetric analysis of the exhausted samples revealed that the predominant atenolol specie adsorbed is conditioned by the carbons surface chemistry: neutral/acidic lab-made carbons generally favoured the decomposition of the more stable specie; basic commercial samples retained predominantly the less stable one. |
| DOI |
http://dx.doi.org/10.1016/j.cej.2018.01.076 |
| ISBN |
|
| Publisher |
|
| Book Title |
|
| ISSN |
1385-8947 |
| EISSN |
1873-3212 |
| Conference Name |
|
| Bibtex ID |
ISI:000430696500069 |
| Observations |
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