Agricultural waste valorisation Novel Areca catechu L. residue blended with PVA-Chitosan for removal of chromium (VI) from water Characterization, kinetics, and isotherm studies
- Title
- Agricultural waste valorisation Novel Areca catechu L. residue blended with PVA-Chitosan for removal of chromium (VI) from water Characterization, kinetics, and isotherm studies
- Creator
- Jose J.; Binish C.J.; Johns J.; Chundattu S.J.; Vijayasankar A.V.
- Description
- Arecanut, an industrial crop prevalent in tropical regions such as India, Sri Lanka, and parts of Southeast Asia, generates significant agricultural waste during processing. This study explores a waste-to-wealth approach by incorporating arecanut organic residue into Polyvinyl alcohol (PVA) - Chitosan blends via an eco-friendly continuous stirring method to develop an adsorbent film for removing chromium (VI) from water. Morphological analyses confirmed enhanced surface area, porosity, and roughness in the blended films. XRD and FTIR analyses indicated a semi-crystalline nature with a decrease in the characteristic peak intensity of PVA and chitosan, confirming the incorporation of arecanut residue. Optimal conditions identified OR-4 film, using 0.4 g of adsorbent, achieving 88.68 % removal of 173 mg/L chromium (VI) at pH 9.0, within 45 minutes at 40C. SEM images demonstrated significant surface roughness reduction before and after adsorption, confirming chromium adsorption. Kinetic studies revealed a pseudo-second-order model and adsorption isotherms confirmed film surface heterogeneity. This research advances eco-friendly materials for water purification and offers a sustainable solution for managing agricultural residues. 2024 Elsevier B.V.
- Source
- Industrial Crops and Products, Vol-222
- Date
- 2024-01-01
- Publisher
- Elsevier B.V.
- Subject
- Arecanut; Chitosan; Chromium (VI) removal; Continuous stirring synthesis; PVA
- Coverage
- Jose J., Department of Chemistry, CHRIST-Deemed to be University, Bangalore, 560029, India; Binish C.J., Department of Chemistry, CHRIST-Deemed to be University, Bangalore, 560029, India; Johns J., Department of Physics, Rajarajeswari College of Engineering, Mysore Road, Bengaluru, 560074, India; Chundattu S.J., Department of Sciences and Humanities, CHRIST-Deemed to be University, Bangalore, 560074, India; Vijayasankar A.V., Department of Chemistry, CHRIST-Deemed to be University, Bangalore, 560029, India, Department of Sciences and Humanities, CHRIST-Deemed to be University, Bangalore, 560074, India
- Rights
- Restricted Access
- Relation
- ISSN: 9266690; CODEN: ICRDE
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Jose J.; Binish C.J.; Johns J.; Chundattu S.J.; Vijayasankar A.V., “Agricultural waste valorisation Novel Areca catechu L. residue blended with PVA-Chitosan for removal of chromium (VI) from water Characterization, kinetics, and isotherm studies,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 23, 2025, https://archives.christuniversity.in/items/show/12673.