Visible-light active collagen-TiO2 nanobio-sponge for water remediation: A sustainable approach
Pollution owing to the dye house wastewater and negligent disposal of proteinaceous wastes are major threats to the environment. The conventional water treatment and solid waste management techniques are neither efficient nor cost effective. Here, we developed a collagen-TiO2 nanoparticles based pho...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Cleaner Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772397621000113 |
| _version_ | 1818346455280123904 |
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| author | S. Nagaraj K. Cheirmadurai P. Thanikaivelan |
| author_facet | S. Nagaraj K. Cheirmadurai P. Thanikaivelan |
| author_sort | S. Nagaraj |
| collection | DOAJ |
| description | Pollution owing to the dye house wastewater and negligent disposal of proteinaceous wastes are major threats to the environment. The conventional water treatment and solid waste management techniques are neither efficient nor cost effective. Here, we developed a collagen-TiO2 nanoparticles based photocatalytic nanobio-sponge from bio-waste for the remediation of organic dyes from wastewater. TiO2 nanoparticles were functionalized (TIF) with 3-aminopropyltriethoxysilane for stabilizing type-I collagen fibers extracted from cowhide wastes. 13C-nuclear magnetic resonance (13C NMR) and Fourier-transform infrared (FT-IR) spectroscopic analyses confirm the amine functionalization on the surface of TiO2 nanoparticles. Thermal stability of collagen fibers is increased to 84 °C after treatment with TIF, which is 20 °C higher than that of pristine collagen fibers. Further, we converted them into a bio-sponge for photocatalytic degradation of Rhodamine-B (RhB). We demonstrate that the collagen nanobio-sponge loaded with 10% (w/w) TIF nanoparticles can degrade RhB up to 95% under visible light irradiation as well as direct sunlight with a reduction in chemical oxygen demand up to 94%. Photo degradation of RhB was not manifested when the reaction was carried out in dark conditions. The results of this study pave way for the cost-effective and sustainable development of engineered biomass based sponges for real-life environmental remediation applications. |
| first_indexed | 2024-12-13T17:18:32Z |
| format | Article |
| id | doaj.art-ee022d2ad7924248855f6c493789da94 |
| institution | Directory Open Access Journal |
| issn | 2772-3976 |
| language | English |
| last_indexed | 2024-12-13T17:18:32Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Cleaner Materials |
| spelling | doaj.art-ee022d2ad7924248855f6c493789da942022-12-21T23:37:22ZengElsevierCleaner Materials2772-39762021-12-011100011Visible-light active collagen-TiO2 nanobio-sponge for water remediation: A sustainable approachS. Nagaraj0K. Cheirmadurai1P. Thanikaivelan2Advanced Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai 600020, India; University of Madras, Chepauk, Chennai 600005, IndiaAdvanced Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai 600020, India; University of Madras, Chepauk, Chennai 600005, IndiaAdvanced Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai 600020, India; University of Madras, Chepauk, Chennai 600005, India; Corresponding author at: Advanced Materials Laboratory, Council of Scientific and Industrial Research (CSIR)-Central Leather Research Institute (CLRI), Adyar, Chennai 600020, India.Pollution owing to the dye house wastewater and negligent disposal of proteinaceous wastes are major threats to the environment. The conventional water treatment and solid waste management techniques are neither efficient nor cost effective. Here, we developed a collagen-TiO2 nanoparticles based photocatalytic nanobio-sponge from bio-waste for the remediation of organic dyes from wastewater. TiO2 nanoparticles were functionalized (TIF) with 3-aminopropyltriethoxysilane for stabilizing type-I collagen fibers extracted from cowhide wastes. 13C-nuclear magnetic resonance (13C NMR) and Fourier-transform infrared (FT-IR) spectroscopic analyses confirm the amine functionalization on the surface of TiO2 nanoparticles. Thermal stability of collagen fibers is increased to 84 °C after treatment with TIF, which is 20 °C higher than that of pristine collagen fibers. Further, we converted them into a bio-sponge for photocatalytic degradation of Rhodamine-B (RhB). We demonstrate that the collagen nanobio-sponge loaded with 10% (w/w) TIF nanoparticles can degrade RhB up to 95% under visible light irradiation as well as direct sunlight with a reduction in chemical oxygen demand up to 94%. Photo degradation of RhB was not manifested when the reaction was carried out in dark conditions. The results of this study pave way for the cost-effective and sustainable development of engineered biomass based sponges for real-life environmental remediation applications.http://www.sciencedirect.com/science/article/pii/S2772397621000113Collagen fibersNanoparticlesPhotocatalysisIrradiationCrosslinking |
| spellingShingle | S. Nagaraj K. Cheirmadurai P. Thanikaivelan Visible-light active collagen-TiO2 nanobio-sponge for water remediation: A sustainable approach Cleaner Materials Collagen fibers Nanoparticles Photocatalysis Irradiation Crosslinking |
| title | Visible-light active collagen-TiO2 nanobio-sponge for water remediation: A sustainable approach |
| title_full | Visible-light active collagen-TiO2 nanobio-sponge for water remediation: A sustainable approach |
| title_fullStr | Visible-light active collagen-TiO2 nanobio-sponge for water remediation: A sustainable approach |
| title_full_unstemmed | Visible-light active collagen-TiO2 nanobio-sponge for water remediation: A sustainable approach |
| title_short | Visible-light active collagen-TiO2 nanobio-sponge for water remediation: A sustainable approach |
| title_sort | visible light active collagen tio2 nanobio sponge for water remediation a sustainable approach |
| topic | Collagen fibers Nanoparticles Photocatalysis Irradiation Crosslinking |
| url | http://www.sciencedirect.com/science/article/pii/S2772397621000113 |
| work_keys_str_mv | AT snagaraj visiblelightactivecollagentio2nanobiospongeforwaterremediationasustainableapproach AT kcheirmadurai visiblelightactivecollagentio2nanobiospongeforwaterremediationasustainableapproach AT pthanikaivelan visiblelightactivecollagentio2nanobiospongeforwaterremediationasustainableapproach |