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Khosla, Ekta
- Efficient Micellar Extraction of Ternary Mixture of Cationic Dyes from Aqueous Medium
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Authors
Affiliations
1 Department of Chemistry, Kanya Maha Vidyalaya, Jalandhar - 144004, Punjab, IN
2 Department of Applied Sciences and Humanities, Shaheed Bhagat Singh State Technical Campus, Ferozepur - 152004, Punjab, IN
3 Department of Chemistry, Hans Raj Mahila Maha Vidyalaya, Jalandhar - 144008, Punjab, IN
1 Department of Chemistry, Kanya Maha Vidyalaya, Jalandhar - 144004, Punjab, IN
2 Department of Applied Sciences and Humanities, Shaheed Bhagat Singh State Technical Campus, Ferozepur - 152004, Punjab, IN
3 Department of Chemistry, Hans Raj Mahila Maha Vidyalaya, Jalandhar - 144008, Punjab, IN
Source
Journal of Surface Science and Technology, Vol 33, No 3-4 (2017), Pagination: 106-114Abstract
In the present work an attempt has been made to extract ternary mixture of Basic Yellow-2 (BY-2), Basic Red-12 (BR-12) and Basic Blue-26 (BB-26) dyes from simulated textile effluent by solvent extraction using anionic surfactant Sodium Dodecylsulfate (SDS). This study proposes an efficient, fast, simple and effective microemulsion system for the removal of cationic dyes using reverse micelles of anionic surfactant from wastewaters. In this method, dyes are dissolved in aqueous phase and mixed with organic solvent in the presence of surfactant. The effects of the concentration of feed mixture (dye and surfactant), temperature, pH and salt concentration on extraction of dyes from aqueous phase have been studied after the complete separation of two phases. The method poses no environmental threat, so it is an eco-friendly way to treat dye house effluents.Keywords
Anionic Surfactant, Cationic Dyes, Reverse Micelles, Solvent Extraction.
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- Batch Experiment of Removal of Heavy Metal (Pb) (II) by use of Inexpensive Bio Absorbent Leaf of Abutilon pannosum (APL)
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Authors
Affiliations
1 Department of Chemistry, KSKV Kachchh University, Bhuj – 370001, Gujarat, IN
2 Department of Chemistry, KSKV Kachchh University, Mundra Road, Bhuj – 370001, Gujarat, IN
3 Department of Chemistry, Hans Raj Mahila Maha Vidyalaya, Jalandhar – 144008, Punjab, IN
1 Department of Chemistry, KSKV Kachchh University, Bhuj – 370001, Gujarat, IN
2 Department of Chemistry, KSKV Kachchh University, Mundra Road, Bhuj – 370001, Gujarat, IN
3 Department of Chemistry, Hans Raj Mahila Maha Vidyalaya, Jalandhar – 144008, Punjab, IN
Source
Journal of Surface Science and Technology, Vol 34, No 1-2 (2018), Pagination: 37-49Abstract
The contamination of heavy metals to the environment, i.e., soil, water, plant and air is of great concern due to their potential impact on human and animal health. Lead causes pollution and affects all the systems of the human body. The present study highlights experimental data on low cost adsorbent like leaf powder of plant Abutilon pannosum (APL) for removal of heavy metal (Pb2+) ions. The adsorbent material opted was found to be an efficient material for removal of Lead (II). The present study aimed to identify efficient medium for the removal of heavy metal with various parameters like adsorbent dosages, concentration, agitation time, temperature and pH. This report also identified the adsorption capacity of APL leaf powder. The experiments were done using Atomic absorption spectrometer. Different isotherm models like Freundlich isotherm, Langmuir Isotherm, Temkin isotherm, Dubinin-Radushkevich isotherm, Redlich-Peterson isotherm, Sips or Langmuir-Freundlich isotherm, Halsey adsorption Isotherm, Khan isotherm for understanding the mechanism of the process. Thermodynamic parameters were studied at different temperatures 295 to 312 K to evaluate the nature of adsorption of Pb2+ by APL powder. The two parameter isotherm coefficients (R<sup>2</sup>>0.99) for kinetics of the process were studied using Pseudo first order, Pseudo second order, Elovich equation, Intra-particle diffusion and Bangham equations. This study has demonstrated that the plant materials of Abutilon pannosum can be used as an effective bio absorbent for removal of lead from aqueous solutions.Keywords
Adsorption, Heavy Metal, Kinetic Study, Leaf Powder, Thermodynamics.References
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