| Title: | Upcycling of plastic waste into multi-walled carbon nanotubes as efficient organic dye adsorbent |
|---|
| Authors: | ID Gaceva, Gordana Bogoeva (Author)
ID Sokolovska, Meri (Author)
ID Stefov, Viktor (Author)
ID Najdoski, Metodija (Author)
ID Kovačič, Sebastijan (Author) |
|---|
| Files: |  16+SP+9145-01-08-25.pdf (1,09 MB)
MD5: 0FADA0D92F30C5187E9491E2201D727B
 https://acsi-journal.eu/index.php/ACSi/article/view/9145
https://acsi-journal.eu/index.php/ACSi/article/view/9145/10230
|
|---|
| Language: | English |
|---|
| Work type: | Article |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: | FKKT - Faculty of Chemistry and Chemical Engineering
|
|---|
| Abstract: | Multi-walled CNTs with an average diameter of about 80 nm, a length of several micrometers and surface area (SBET) of 100 m2 g–1 were obtained by pyrolysis of low-density polyethylene waste. The potential of the resulting MWCNTs material to purify water containing organic dyes was tested with Bezaktiv Blau HE-RM (BB) and Bezaktiv Rot S-3B (BR) reactive dyes. 200 mg L–1 MWCNT material was used to follow the adsorption of 30 mg L–1, 40 mg L–1, 50 mg L–1 and 60 mg L–1 BB and BR at pH 3 and a temperature of ~25 °C. The results have shown that this material has a high potential as a sorbent, and its adsorption capacity of 257 mg g–1 (for Bezaktiv BlauHE-RM) and 213 mg g–1 (for Bezaktiv Rot) is close to some commercial MWCNTs and functionalized MWCNT-based adsorbents. The adsorption process was very fast, reaching 80–90% of the dye removal in 10–15 minutes, and the equilibrium time was reached in 40–60 minutes. The adsorption isotherm showed that the Langmuir model was more suitable than the Freundlich model for describing the adsorption properties of the pollutants. |
|---|
| Keywords: | adsorption, anionic dyes, upcycling plastic waste, carbon nanotubes |
|---|
| Publication status: | Published |
|---|
| Publication version: | Version of Record |
|---|
| Submitted for review: | 08.01.2025 |
|---|
| Publication date: | 03.03.2025 |
|---|
| Publisher: | Slovensko kemijsko društvo (Slovenian Chemical Society) |
|---|
| Year of publishing: | 2025 |
|---|
| Number of pages: | str. 154-163 |
|---|
| Numbering: | let. 72, št. 1 |
|---|
| PID: | 20.500.12556/DKUM-95212  |
|---|
| UDC: | 54 |
|---|
| ISSN on article: | 1580-3155 |
|---|
| COBISS.SI-ID: | 229767171 |
|---|
| DOI: | 10.17344/acsi.2025.9145 |
|---|
| Copyright: | Copyright (c) 2025 Gordana Bogoeva-Gaceva, Meri Sokolovska, Viktor Stefov, Metodija Najdoski, Sebastijan Kovačič |
|---|
| Publication date in DKUM: | 12.01.2026 |
|---|
| Views: | 124 |
|---|
| Downloads: | 2 |
|---|
| 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. |
