Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from water
<h3>Background</h3><p dir="ltr">Carbon dots (CDs) are of particular interest in numerous applications. However, their efficiency for heavy metal removal from wastewater was not yet reported. Herein, we rationally synthesized CDs from petroleum coke waste via hydrothermal...
محفوظ في:
| المؤلف الرئيسي: | |
|---|---|
| مؤلفون آخرون: | , , , , |
| منشور في: |
2020
|
| الموضوعات: | |
| الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
| _version_ | 1864513552132341760 |
|---|---|
| author | Khouloud Jlassi (2583832) |
| author2 | Kamel Eid (1542562) Mostafa H. Sliem (6316958) Aboubakr M. Abdullah (1505017) Mohamed M. Chehimi (2079574) Igor Krupa (1389267) |
| author2_role | author author author author author |
| author_facet | Khouloud Jlassi (2583832) Kamel Eid (1542562) Mostafa H. Sliem (6316958) Aboubakr M. Abdullah (1505017) Mohamed M. Chehimi (2079574) Igor Krupa (1389267) |
| author_role | author |
| dc.creator.none.fl_str_mv | Khouloud Jlassi (2583832) Kamel Eid (1542562) Mostafa H. Sliem (6316958) Aboubakr M. Abdullah (1505017) Mohamed M. Chehimi (2079574) Igor Krupa (1389267) |
| dc.date.none.fl_str_mv | 2020-02-05T18:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1186/s12302-020-0292-z |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Rational_synthesis_characterization_and_application_of_environmentally_friendly_polymer_carbon_dot_hybrid_composite_film_for_fast_and_efficient_UV-assisted_Cd2_removal_from_water/21598290 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Nanotechnology Environmental sciences Pollution and contamination Waste management Water-soluble carbon dots Polymer–carbon dot-based hybrid composite film UV-assisted Cd2+ removal |
| dc.title.none.fl_str_mv | Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from water |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <h3>Background</h3><p dir="ltr">Carbon dots (CDs) are of particular interest in numerous applications. However, their efficiency for heavy metal removal from wastewater was not yet reported. Herein, we rationally synthesized CDs from petroleum coke waste via hydrothermal treatment in the presence of ammonia.</p><h3>Results</h3><p dir="ltr">This drove the formation of outstanding photoluminescent, water-soluble, biocompatible, and high yield of monodispersed sub-5 nm CDs. The CDs are co-doped with high 10% of N and 0.2% of S. The as-prepared CDs possess unprecedented photoluminescent properties over broad pH range making these dots unique efficient pH sensor.</p><h3>Conclusions</h3><p dir="ltr">Chitosan (CH)–CDs hybrid hydrogel nanocomposite film was further prepared as a platform membrane for the removal Cd2+ metal from wastewater. The as-prepared CH–CDs membranes show relatively good mechanical properties, based on stress resistance and flexibility to facilitate handling. The equilibrium state was reached within 5 min. Intriguingly, the UV-light illuminations enhanced the Cd2+ removal efficiency of the photoluminescent CDs substantially by four times faster under. It was found that adsorption followed pseudo-second-order kinetic and Langmuir isotherm models. The maximum adsorption capacity at 25 °C was found to be 112.4 mg g−1 at pH 8. This work paves the way to new applications of CDs in water treatment.</p><h2>Other Information</h2><p dir="ltr">Published in: Environmental Sciences Europe<br>License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1186/s12302-020-0292-z" target="_blank">http://dx.doi.org/10.1186/s12302-020-0292-z</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_b2f987a96faf1286cbcded9cefa37d8b |
| identifier_str_mv | 10.1186/s12302-020-0292-z |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/21598290 |
| publishDate | 2020 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from waterKhouloud Jlassi (2583832)Kamel Eid (1542562)Mostafa H. Sliem (6316958)Aboubakr M. Abdullah (1505017)Mohamed M. Chehimi (2079574)Igor Krupa (1389267)EngineeringNanotechnologyEnvironmental sciencesPollution and contaminationWaste managementWater-soluble carbon dotsPolymer–carbon dot-based hybrid composite filmUV-assisted Cd2+ removal<h3>Background</h3><p dir="ltr">Carbon dots (CDs) are of particular interest in numerous applications. However, their efficiency for heavy metal removal from wastewater was not yet reported. Herein, we rationally synthesized CDs from petroleum coke waste via hydrothermal treatment in the presence of ammonia.</p><h3>Results</h3><p dir="ltr">This drove the formation of outstanding photoluminescent, water-soluble, biocompatible, and high yield of monodispersed sub-5 nm CDs. The CDs are co-doped with high 10% of N and 0.2% of S. The as-prepared CDs possess unprecedented photoluminescent properties over broad pH range making these dots unique efficient pH sensor.</p><h3>Conclusions</h3><p dir="ltr">Chitosan (CH)–CDs hybrid hydrogel nanocomposite film was further prepared as a platform membrane for the removal Cd2+ metal from wastewater. The as-prepared CH–CDs membranes show relatively good mechanical properties, based on stress resistance and flexibility to facilitate handling. The equilibrium state was reached within 5 min. Intriguingly, the UV-light illuminations enhanced the Cd2+ removal efficiency of the photoluminescent CDs substantially by four times faster under. It was found that adsorption followed pseudo-second-order kinetic and Langmuir isotherm models. The maximum adsorption capacity at 25 °C was found to be 112.4 mg g−1 at pH 8. This work paves the way to new applications of CDs in water treatment.</p><h2>Other Information</h2><p dir="ltr">Published in: Environmental Sciences Europe<br>License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="http://dx.doi.org/10.1186/s12302-020-0292-z" target="_blank">http://dx.doi.org/10.1186/s12302-020-0292-z</a></p>2020-02-05T18:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1186/s12302-020-0292-zhttps://figshare.com/articles/journal_contribution/Rational_synthesis_characterization_and_application_of_environmentally_friendly_polymer_carbon_dot_hybrid_composite_film_for_fast_and_efficient_UV-assisted_Cd2_removal_from_water/21598290CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/215982902020-02-05T18:00:00Z |
| spellingShingle | Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from water Khouloud Jlassi (2583832) Engineering Nanotechnology Environmental sciences Pollution and contamination Waste management Water-soluble carbon dots Polymer–carbon dot-based hybrid composite film UV-assisted Cd2+ removal |
| status_str | publishedVersion |
| title | Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from water |
| title_full | Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from water |
| title_fullStr | Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from water |
| title_full_unstemmed | Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from water |
| title_short | Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from water |
| title_sort | Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd<sup>2+</sup> removal from water |
| topic | Engineering Nanotechnology Environmental sciences Pollution and contamination Waste management Water-soluble carbon dots Polymer–carbon dot-based hybrid composite film UV-assisted Cd2+ removal |