Cost effective porous areca nut carbon nanospheres for adsorptive removal of dyes and their binary mixtures
- Title
- Cost effective porous areca nut carbon nanospheres for adsorptive removal of dyes and their binary mixtures
- Creator
- Pathania D.; Araballi A.; Fernandes F.; Shivanna J.M.; Sriram G.; Kurkuri M.; Hegde G.; Aminabhavi T.M.
- Description
- Novel porous nanospheres from areca nuts (ACNPs) were synthesized via one-step pyrolysis without the use of any chemical treatment and the materials were used as adsorbents for the removal of cationic methylene blue (MB) and anionic methyl orange (MO) as well as their binary mixtures. Around, 67 tonnes of areca nut biowaste is generated every year which are then burnt due to their slow rate of decomposition resulting in higher carbon footprints. Biosorbents are generally a preferable alternative for dye adsorption but involve chemical modification for surface enhancement and complex sample treatment. In this work, ACNPs, were investigated for their efficiency in the raw form and were characterized by SEM, EDS, FTIR, XRD, and BET techniques before and after subjecting to the dye adsorption studies. The BET analysis of the adsorbents showed a high specific surface area of 693.8 m2/g when prepared at 1000 C, while the N2 adsorption-desorption plot showed type-IV isotherm, suggesting the microporous nature of the carbon matrix. Batch equilibrium studies showed the removal efficiency of >95% for both the dyes and their binary mixtures under the optimum conditions of 0.15 g/L dosage, 10 ?M concentration and contact time of 70 min. Due to the synergistic effects of the binary dyes, higher removal efficiency of MB compared to MO was observed in the binary mixture. Adsorption results were tested using Langmuir, Freundlich, Temkin, Redlich-Peterson, and Elovich isotherms to assess the best fit of the models. The qm value of MB was found to be 97.37 mg/g, while that of MO was 71.22 mg/g which is higher compared to individual dye components having lower values of 86.12 mg/g and 50.35 mg/g, respectively. Extended Langmuir and Jain and Snoeyink isotherms were used for binary data interpretation. The kinetic results showed good agreement with the Pseudo-second order equation, indicating internal diffusion. The possible mechanism involved electrostatic and ?-? interactions between the dye molecules and ACNPs. This approach is comprehensible and cost effective and can be utilized for dye removal in textile industries. 2023 Elsevier Inc.
- Source
- Environmental Research, Vol-224
- Date
- 2023-01-01
- Publisher
- Academic Press Inc.
- Subject
- Areca nut; Binary mixture; Methylene blue and methyl orange; Nanoadsorbent; Porous nano spheres; Wastewater
- Coverage
- Pathania D., Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, Karnataka, Bangalore, 560029, India; Araballi A., Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, Karnataka, Bangalore, 560029, India; Fernandes F., Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, Karnataka, Bangalore, 560029, India; Shivanna J.M., Department of Chemistry, AMC Engineering College, Bannerghatta Road, Bengaluru, 560083, India; Sriram G., Department of Environment and Energy Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju, 61186, South Korea; Kurkuri M., Centre for Research in Functional Materials (CRFM), JAIN (Deemed to be University), Jain Global Campus, Bengaluru, 562112, India; Hegde G., Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, Karnataka, Bangalore, 560029, India, Department of Chemistry, CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, Karnataka, Bangalore, 560029, India; Aminabhavi T.M., Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi, 580 031, India, Department of Biotechnology, Engineering and Food Technology, Chandigarh University, Punjab, Mohali, 140413, India
- Rights
- Restricted Access
- Relation
- ISSN: 139351; PubMed ID: 36805895; CODEN: ENVRA
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Pathania D.; Araballi A.; Fernandes F.; Shivanna J.M.; Sriram G.; Kurkuri M.; Hegde G.; Aminabhavi T.M., “Cost effective porous areca nut carbon nanospheres for adsorptive removal of dyes and their binary mixtures,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 24, 2025, https://archives.christuniversity.in/items/show/14277.