Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supports
<p>The present study aims to use green synthesized TiO<sub>2</sub> as a photocatalyst in suspended and immobilized form under UV light to efficiently degrade a combination of reactive dyes, namely titan yellow, methyl orange, rhodamine B, and methylene blue. TiO<sub>2</sub...
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2024
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| _version_ | 1852025464489508864 |
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| author | Shilpa Hiremath (20101953) |
| author2 | Sudeep Mudhulu (20101956) C. Vidya (20101959) M. N. Chandraprabha (20101962) Vinutha Moses (20101965) C. Manjunatha (5147057) |
| author2_role | author author author author author |
| author_facet | Shilpa Hiremath (20101953) Sudeep Mudhulu (20101956) C. Vidya (20101959) M. N. Chandraprabha (20101962) Vinutha Moses (20101965) C. Manjunatha (5147057) |
| author_role | author |
| dc.creator.none.fl_str_mv | Shilpa Hiremath (20101953) Sudeep Mudhulu (20101956) C. Vidya (20101959) M. N. Chandraprabha (20101962) Vinutha Moses (20101965) C. Manjunatha (5147057) |
| dc.date.none.fl_str_mv | 2024-11-03T22:40:12Z |
| dc.identifier.none.fl_str_mv | 10.6084/m9.figshare.27600372.v1 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/online_resource/Green_synthesized_nano-TiO_sub_2_sub_from_Tamarindusindica_leaf_extract_for_photo-degradation_of_combination_of_dyes_by_suspension_and_immobilization_on_inert_supports/27600372 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Biochemistry Medicine Molecular Biology Biotechnology Developmental Biology Cancer Inorganic Chemistry Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified Nano TiO2 immobilization photodegradation mixture of dyes continuous mode |
| dc.title.none.fl_str_mv | Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supports |
| dc.type.none.fl_str_mv | Text Online resource info:eu-repo/semantics/publishedVersion text |
| description | <p>The present study aims to use green synthesized TiO<sub>2</sub> as a photocatalyst in suspended and immobilized form under UV light to efficiently degrade a combination of reactive dyes, namely titan yellow, methyl orange, rhodamine B, and methylene blue. TiO<sub>2</sub> nanoparticles (NPs) were synthesized using <i>Tamarindus indica</i> leaf extract and were utilized to parametrically study photo-degradation at room temperature. The green synthesized NPs were characterized by Powder XRD, SEM, and FTIR techniques to understand the crystalline phase/purity, morphology, and functional groups respectively. The TiO<sub>2</sub> in suspension under UV light showed >90% degradation towards a 10 ppm composite dye at a loading of 1.5 gL<sup>−1</sup>, pH 7, and an irradiation time of 120 min. Subsequently, TiO<sub>2</sub> was further immobilized in-situ, on inert supports of perlite granules and glass and studied for catalytic activity in batch and continuous modes. The TiO<sub>2</sub> nanoparticles immobilized on perlite granules and glass showed 59 and 48% degradation in batch operation under the same conditions as in suspended form. In continuous mode, the highest degradation activity was recorded at 2 Lh<sup>−1</sup> after 4 passes. Further, kinetic studies reveal that the degradation reaction is best described by Langmuir Hinshelwood kinetics for both suspended and immobilized TiO<sub>2</sub>.</p> |
| eu_rights_str_mv | openAccess |
| id | Manara_87fc28282024940780256b0ec54e3b86 |
| identifier_str_mv | 10.6084/m9.figshare.27600372.v1 |
| network_acronym_str | Manara |
| network_name_str | ManaraRepo |
| oai_identifier_str | oai:figshare.com:article/27600372 |
| publishDate | 2024 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supportsShilpa Hiremath (20101953)Sudeep Mudhulu (20101956)C. Vidya (20101959)M. N. Chandraprabha (20101962)Vinutha Moses (20101965)C. Manjunatha (5147057)BiochemistryMedicineMolecular BiologyBiotechnologyDevelopmental BiologyCancerInorganic ChemistryBiological Sciences not elsewhere classifiedChemical Sciences not elsewhere classifiedNano TiO2immobilizationphotodegradationmixture of dyescontinuous mode<p>The present study aims to use green synthesized TiO<sub>2</sub> as a photocatalyst in suspended and immobilized form under UV light to efficiently degrade a combination of reactive dyes, namely titan yellow, methyl orange, rhodamine B, and methylene blue. TiO<sub>2</sub> nanoparticles (NPs) were synthesized using <i>Tamarindus indica</i> leaf extract and were utilized to parametrically study photo-degradation at room temperature. The green synthesized NPs were characterized by Powder XRD, SEM, and FTIR techniques to understand the crystalline phase/purity, morphology, and functional groups respectively. The TiO<sub>2</sub> in suspension under UV light showed >90% degradation towards a 10 ppm composite dye at a loading of 1.5 gL<sup>−1</sup>, pH 7, and an irradiation time of 120 min. Subsequently, TiO<sub>2</sub> was further immobilized in-situ, on inert supports of perlite granules and glass and studied for catalytic activity in batch and continuous modes. The TiO<sub>2</sub> nanoparticles immobilized on perlite granules and glass showed 59 and 48% degradation in batch operation under the same conditions as in suspended form. In continuous mode, the highest degradation activity was recorded at 2 Lh<sup>−1</sup> after 4 passes. Further, kinetic studies reveal that the degradation reaction is best described by Langmuir Hinshelwood kinetics for both suspended and immobilized TiO<sub>2</sub>.</p>2024-11-03T22:40:12ZTextOnline resourceinfo:eu-repo/semantics/publishedVersiontext10.6084/m9.figshare.27600372.v1https://figshare.com/articles/online_resource/Green_synthesized_nano-TiO_sub_2_sub_from_Tamarindusindica_leaf_extract_for_photo-degradation_of_combination_of_dyes_by_suspension_and_immobilization_on_inert_supports/27600372CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/276003722024-11-03T22:40:12Z |
| spellingShingle | Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supports Shilpa Hiremath (20101953) Biochemistry Medicine Molecular Biology Biotechnology Developmental Biology Cancer Inorganic Chemistry Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified Nano TiO2 immobilization photodegradation mixture of dyes continuous mode |
| status_str | publishedVersion |
| title | Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supports |
| title_full | Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supports |
| title_fullStr | Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supports |
| title_full_unstemmed | Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supports |
| title_short | Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supports |
| title_sort | Green synthesized nano-TiO<sub>2</sub> from Tamarindusindica leaf extract for photo-degradation of combination of dyes by suspension and immobilization on inert supports |
| topic | Biochemistry Medicine Molecular Biology Biotechnology Developmental Biology Cancer Inorganic Chemistry Biological Sciences not elsewhere classified Chemical Sciences not elsewhere classified Nano TiO2 immobilization photodegradation mixture of dyes continuous mode |