| Title: | Cu(II) and Ni(II) adsorption on torrefied wood waste biomass |
|---|
| Authors: | ID Simonič, Marjana (Author)
ID Goričanec, Darko (Author)
ID Petrovič, Aleksandra (Author)
ID Silić, Ilda (Author)
ID Urbancl, Danijela (Author) |
|---|
| Files: |  metals-15-00304.pdf (8,49 MB)
MD5: 69C911AC4213F21C7065BAF4A5628A90
 https://www.mdpi.com/2075-4701/15/3/304
|
|---|
| Language: | English |
|---|
| Work type: | Article |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: | FKKT - Faculty of Chemistry and Chemical Engineering
|
|---|
| Abstract: | The aim of the research was to study the torrefaction processes of wood biomass, compare the product characteristics at different torrefaction temperatures, and assess both moisture adsorption on raw and torrefied samples, as well as metal (Cu(II) and Ni(II)) adsorption on torrefied biomass. The novelty of the research was to investigate whether the presence of adsorbed metals in torrefied biomass significantly affects the energetic properties of the torrefied biomass, compared to torrefied biomass without metals. First, wood samples were torrefied at temperatures of 250 °C, 350 °C, and 400 °C. Following torrefaction, thermogravimetric analysis (TGA) was performed to evaluate mass loss and thermal stability. Next, changes in surface functional groups were examined, and higher heating values (HHV) were measured to assess the energy content. The results showed that torrefaction significantly increased the hydrophobicity of the biomass, leading to reduced moisture adsorption and enhanced material properties. Additionally, the adsorption of Cu(II) and Ni(II) ions on torrefied biomass was investigated. The results showed that the adsorption efficiency for Cu(II) was higher, reaching 62.4%, compared to Ni(II) at 21.2%. The adsorption process followed a pseudo-second-order kinetic model, which indicated that chemisorption was the dominant mechanism. |
|---|
| Keywords: | adsorption, torrefication, nitrogen atmosphere, metals |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Submitted for review: | 23.01.2025 |
|---|
| Article acceptance date: | 08.03.2025 |
|---|
| Publication date: | 11.03.2025 |
|---|
| Publisher: | MDPI AG |
|---|
| Year of publishing: | 2025 |
|---|
| Number of pages: | 15 str. |
|---|
| Numbering: | Vol. 15, iss. 3, [article no.] 304 |
|---|
| PID: | 20.500.12556/DKUM-92028  |
|---|
| UDC: | 66 |
|---|
| ISSN on article: | 2075-4701 |
|---|
| COBISS.SI-ID: | 228692227 |
|---|
| DOI: | 10.3390/met15030304 |
|---|
| Copyright: | © 2025 by the authors |
|---|
| Publication date in DKUM: | 12.03.2025 |
|---|
| Views: | 133 |
|---|
| Downloads: | 11 |
|---|
| Metadata: |    |
|---|
| Categories: | Misc.
|
|---|
|
:
|
Copy citation |
|---|
| | | | Average score: | (0 votes) |
|---|
| Your score: | Voting is allowed only for logged in users. |
|---|
| Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
