Enhanced Trace-Level Assay and Excision of Cu(II) Ions via MOF-Cellulose Nanofiber Nanohybrids: A Study of Adsorption Mechanism and RSM Optimization
Metal-organic frameworks (MOFs), synthesized as nano-sized particles, have innumerable applications. However, lower hydrothermal and chemical stability and diminishing structural strength with increasing length of organic ligands have necessitated a suitable substrate for their support, ensuing impr...
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Taylor & Francis Group
2025-12-01
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| Series: | Journal of Chemical Engineering of Japan |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/00219592.2025.2527271 |
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| author | Manjot Singh Jyoti Kazuho Nakamura Hideaki Yoshitake Preeti Tewatia Kavita Sharma Christian Paulik Mukta Sharma Anupama Kaushik |
| author_facet | Manjot Singh Jyoti Kazuho Nakamura Hideaki Yoshitake Preeti Tewatia Kavita Sharma Christian Paulik Mukta Sharma Anupama Kaushik |
| author_sort | Manjot Singh Jyoti |
| collection | DOAJ |
| description | Metal-organic frameworks (MOFs), synthesized as nano-sized particles, have innumerable applications. However, lower hydrothermal and chemical stability and diminishing structural strength with increasing length of organic ligands have necessitated a suitable substrate for their support, ensuing improved applications and recycling. This study synthesized novel nanohybrids by anchoring Zn-BTC MOFs on the surface of Schiff base cellulose nanofibers (SBCFs) (SBCF@Zn-BTC) using the hydrothermal method. The cellulose nanofibers (CNFs) were derived from waste rice straw to warrant a sustainable bio-economy. The nanohybrids exhibited significant fluorescence quenching in the presence of Cu(II) ions in aqueous medium owing to fluorescence resonance energy transfer (FRET) and photo-induced electron transfer (PET) mechanisms. Besides, the nanohybrids also showed excellent adsorption of Cu(II) ions due to porous structure of MOF. EDS and XPS results confirmed the synthesis and adsorption of Cu(II) ions. The nanohybrid was highly selective for Cu(II) ions with a detection limit of 0.254 µM and negligible interference from competing ions. The removal efficiency was 82.8%, substantially higher than SBCFs and Zn-BTC MOF, respectively. The maximum adsorption capacity was 263.5 mg·g−1 (Co=400 mg·L−1) at pH 8 and after 75 minutes of contact time. Facile recovery and recyclability up to 10 cycles with only a 5% descent in adsorption efficiency warranted their efficient performance and potential in wastewater remediation. |
| format | Article |
| id | doaj-art-244a7bdbaea44a39b6ce0ba0d8129083 |
| institution | DOAJ |
| issn | 0021-9592 1881-1299 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Chemical Engineering of Japan |
| spelling | doaj-art-244a7bdbaea44a39b6ce0ba0d81290832025-08-20T02:40:33ZengTaylor & Francis GroupJournal of Chemical Engineering of Japan0021-95921881-12992025-12-0158110.1080/00219592.2025.2527271Enhanced Trace-Level Assay and Excision of Cu(II) Ions via MOF-Cellulose Nanofiber Nanohybrids: A Study of Adsorption Mechanism and RSM OptimizationManjot Singh Jyoti0Kazuho Nakamura1Hideaki Yoshitake2Preeti Tewatia3Kavita Sharma4Christian Paulik5Mukta Sharma6Anupama Kaushik7Graduate School of Engineering Science, Yokohama National University, JapanDivision of Materials and Chemical Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-Ku, Yokohama, 240-8501, JapanDivision of Materials and Chemical Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-Ku, Yokohama, 240-8501, JapanEnergy Research Centre, Panjab University, Chandigarh, IndiaEnergy Research Centre, Panjab University, Chandigarh, IndiaInstitute for Chemical Technology of Organic Materials, Johannes Kepler University, Linz, AustriaDepartment of Civil Engineering, IKG Punjab Technical University, Jalandhar, IndiaDr. SSB University Institute of Chemical Engineering and Technology, Panjab University, Chandigarh, IndiaMetal-organic frameworks (MOFs), synthesized as nano-sized particles, have innumerable applications. However, lower hydrothermal and chemical stability and diminishing structural strength with increasing length of organic ligands have necessitated a suitable substrate for their support, ensuing improved applications and recycling. This study synthesized novel nanohybrids by anchoring Zn-BTC MOFs on the surface of Schiff base cellulose nanofibers (SBCFs) (SBCF@Zn-BTC) using the hydrothermal method. The cellulose nanofibers (CNFs) were derived from waste rice straw to warrant a sustainable bio-economy. The nanohybrids exhibited significant fluorescence quenching in the presence of Cu(II) ions in aqueous medium owing to fluorescence resonance energy transfer (FRET) and photo-induced electron transfer (PET) mechanisms. Besides, the nanohybrids also showed excellent adsorption of Cu(II) ions due to porous structure of MOF. EDS and XPS results confirmed the synthesis and adsorption of Cu(II) ions. The nanohybrid was highly selective for Cu(II) ions with a detection limit of 0.254 µM and negligible interference from competing ions. The removal efficiency was 82.8%, substantially higher than SBCFs and Zn-BTC MOF, respectively. The maximum adsorption capacity was 263.5 mg·g−1 (Co=400 mg·L−1) at pH 8 and after 75 minutes of contact time. Facile recovery and recyclability up to 10 cycles with only a 5% descent in adsorption efficiency warranted their efficient performance and potential in wastewater remediation.https://www.tandfonline.com/doi/10.1080/00219592.2025.2527271Rice straw cellulosel-arginineMOFCopper adsorptionLOD |
| spellingShingle | Manjot Singh Jyoti Kazuho Nakamura Hideaki Yoshitake Preeti Tewatia Kavita Sharma Christian Paulik Mukta Sharma Anupama Kaushik Enhanced Trace-Level Assay and Excision of Cu(II) Ions via MOF-Cellulose Nanofiber Nanohybrids: A Study of Adsorption Mechanism and RSM Optimization Journal of Chemical Engineering of Japan Rice straw cellulose l-arginine MOF Copper adsorption LOD |
| title | Enhanced Trace-Level Assay and Excision of Cu(II) Ions via MOF-Cellulose Nanofiber Nanohybrids: A Study of Adsorption Mechanism and RSM Optimization |
| title_full | Enhanced Trace-Level Assay and Excision of Cu(II) Ions via MOF-Cellulose Nanofiber Nanohybrids: A Study of Adsorption Mechanism and RSM Optimization |
| title_fullStr | Enhanced Trace-Level Assay and Excision of Cu(II) Ions via MOF-Cellulose Nanofiber Nanohybrids: A Study of Adsorption Mechanism and RSM Optimization |
| title_full_unstemmed | Enhanced Trace-Level Assay and Excision of Cu(II) Ions via MOF-Cellulose Nanofiber Nanohybrids: A Study of Adsorption Mechanism and RSM Optimization |
| title_short | Enhanced Trace-Level Assay and Excision of Cu(II) Ions via MOF-Cellulose Nanofiber Nanohybrids: A Study of Adsorption Mechanism and RSM Optimization |
| title_sort | enhanced trace level assay and excision of cu ii ions via mof cellulose nanofiber nanohybrids a study of adsorption mechanism and rsm optimization |
| topic | Rice straw cellulose l-arginine MOF Copper adsorption LOD |
| url | https://www.tandfonline.com/doi/10.1080/00219592.2025.2527271 |
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