Adsorptive removal of Cr (VI) using mesoporous iron-aluminum oxyhydroxide-polyvinyl alcohol self-supporting film: Kinetics, optimization studies and mechanism
- Title
- Adsorptive removal of Cr (VI) using mesoporous iron-aluminum oxyhydroxide-polyvinyl alcohol self-supporting film: Kinetics, optimization studies and mechanism
- Creator
- John B.C.; Viswambaram V.A.; Raj S.S.; Mankunipoyil S.A.
- Description
- Over the past decades, the disposal of heavy metals like Cr(VI) from industries had an adverse effect on the environment, thus making it a topic of particular interest. In this context, mesoporous Aluminum oxyhydroxide-polyvinyl alcohol self-supporting films were synthesized, and different transition metals (V, Fe, Co, Ni and Cu) were incorporated by an eco-friendly route, and their adsorptive capacity towards Cr (VI) was studied. The composite mesoporous film with iron, aluminum oxyhydroxide and PVA was more efficient adsorbent than other transition metal incorporated aluminum oxyhydroxide films. The surface and chemical properties of the film were confirmed by pXRD, FTIR, Raman Spectra, BET-Surface area, BJH, SEM and Optical Profilometry. Furthermore, the effect of different parameters that impact the adsorption capacity towards Cr (VI) is discussed, including adsorbent load, contact time, solution pH, temperature, and initial concentration. A detailed investigation of the film before and after the adsorption of Cr (VI) using different characterization techniques is investigated in detail. The kinetic studies and adsorption isotherms are studied, and a suitable mechanism has been proposed for Cr (VI) removal. The synthesized films possess potential advantages like cost-effectiveness, eco-friendly nature, reusability, and higher removal efficiency towards the removal of Cr (VI) from an aqueous solution. 2023 Elsevier Ltd
- Source
- Materials Today Communications, Vol-34
- Date
- 2023-01-01
- Publisher
- Elsevier Ltd
- Subject
- Bimetallic films; Cr (VI) removal; Heavy metal removal; Iron aluminum oxyhydroxide films
- Coverage
- John B.C., Department of Sciences and Humanities, CHRIST (Deemed to be University), Bangalore, 560074, India; Viswambaram V.A., Department of Sciences and Humanities, CHRIST (Deemed to be University), Bangalore, 560074, India; Raj S.S., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, India; Mankunipoyil S.A., Department of Chemistry, RV College of Engineering, Bangalore, India
- Rights
- Restricted Access
- Relation
- ISSN: 23524928
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
John B.C.; Viswambaram V.A.; Raj S.S.; Mankunipoyil S.A., “Adsorptive removal of Cr (VI) using mesoporous iron-aluminum oxyhydroxide-polyvinyl alcohol self-supporting film: Kinetics, optimization studies and mechanism,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/14323.