Näytä suppeat kuvailutiedot

dc.contributor.authorSimões dos Reis, Glaydson
dc.contributor.authorBergna, Davide
dc.contributor.authorTuomikoski, Sari
dc.contributor.authorGrimm, Alejandro
dc.contributor.authorLima, Eder Claudio
dc.contributor.authorThyrel, Mikael
dc.contributor.authorSkoglund, Nils
dc.contributor.authorLassi, Ulla
dc.contributor.authorLarsson, Sylvia H.
dc.date.accessioned2022-12-12T13:10:45Z
dc.date.available2022-12-12T13:10:45Z
dc.date.issued2022
dc.identifier.citationSimões dos Reis, G., Bergna, D., Tuomikoski, S., Grimm, A., Lima, E. C., Thyrel, M., Skoglund, N., Lassi, U., & Larsson, S. H. (2022). Preparation and Characterization of Pulp and Paper Mill Sludge-Activated Biochars Using Alkaline Activation : A Box–Behnken Design Approach. <i>ACS Omega</i>, <i>7</i>(36), 32620-32630. <a href="https://doi.org/10.1021/acsomega.2c04290" target="_blank">https://doi.org/10.1021/acsomega.2c04290</a>
dc.identifier.otherCONVID_160416424
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/84303
dc.description.abstractThis study utilized pulp and paper mill sludge as a carbon source to produce activated biochar adsorbents. The response surface methodology (RSM) application for predicting and optimizing the activated biochar preparation conditions was investigated. Biochars were prepared based on a Box–Behnken design (BBD) approach with three independent factors (i.e., pyrolysis temperature, holding time, and KOH:biomass ratio), and the responses evaluated were specific surface area (SSA), micropore area (Smicro), and mesopore area (Smeso). According to the RSM and BBD analysis, a pyrolysis temperature of 800 °C for 3 h of holding and an impregnation ratio of 1:1 (biomass:KOH) are the optimum conditions for obtaining the highest SSA (885 m2 g–1). Maximized Smicro was reached at 800 °C, 1 h and the ratio of 1:1, and for maximizing Smeso (569.16 m2 g–1), 800 °C, 2 h and ratio 1:1.5 (445–473 m2 g–1) were employed. The biochars presented different micro- and mesoporosity characteristics depending on pyrolysis conditions. Elemental analysis showed that biochars exhibited high carbon and oxygen content. Raman analysis indicated that all biochars had disordered carbon structures with structural defects, which can boost their properties, e.g., by improving their adsorption performances. The hydrophobicity–hydrophilicity experiments showed very hydrophobic biochar surfaces. The biochars were used as adsorbents for diclofenac and amoxicillin. They presented very high adsorption performances, which could be explained by the pore filling, hydrophobic surface, and π–π electron–donor–acceptor interactions between aromatic rings of both adsorbent and adsorbate. The biochar with the highest surface area (and highest uptake performance) was subjected to regeneration tests, showing that it can be reused multiple times.en
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherAmerican Chemical Society
dc.relation.ispartofseriesACS Omega
dc.rightsCC BY 4.0
dc.titlePreparation and Characterization of Pulp and Paper Mill Sludge-Activated Biochars Using Alkaline Activation : A Box–Behnken Design Approach
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202212125560
dc.contributor.laitosKokkolan yliopistokeskus Chydeniusfi
dc.contributor.laitosKokkola University Consortium Chydeniusen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.format.pagerange32620-32630
dc.relation.issn2470-1343
dc.relation.numberinseries36
dc.relation.volume7
dc.type.versionpublishedVersion
dc.rights.copyright© 2022 The Authors. Published by American Chemical Society
dc.rights.accesslevelopenAccessfi
dc.subject.ysobiohiili
dc.subject.ysopuuhiili
dc.subject.ysokiertotalous
dc.subject.ysoliete
dc.subject.ysomassa- ja paperiteollisuus
dc.subject.ysoadsorptio
dc.subject.ysohuokoisuus
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p27826
jyx.subject.urihttp://www.yso.fi/onto/yso/p12089
jyx.subject.urihttp://www.yso.fi/onto/yso/p28601
jyx.subject.urihttp://www.yso.fi/onto/yso/p17939
jyx.subject.urihttp://www.yso.fi/onto/yso/p1384
jyx.subject.urihttp://www.yso.fi/onto/yso/p13395
jyx.subject.urihttp://www.yso.fi/onto/yso/p13541
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1021/acsomega.2c04290
jyx.fundinginformationThis research was funded by Bio4Energy - a Strategic Research Environment appointed by the Swedish government and the Swedish University of Agricultural Sciences. The Fourier transform infrared (FTIR) spectroscopy and Raman measurements were performed at the Vibrational Spectroscopy Core Facility (ViSp), Chemical Biological Centre (KBC), Umeå University. The Umeå Core Facility for Electron Microscopy (UCEM-NMI node) at the Chemical Biological Centre (KBC), Umeå University, is gratefully acknowledged. E.C.L. thanks FAPERGS and CNPq for financial support.
dc.type.okmA1


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