1
|
Ahmad M, Abbas G, Haider R, Jalal F, Shar GA, Soomro GA, Qureshi N, Iqbal M, Nazir A. Kinetics and Equilibrium Studies of Eriobotrya Japonica: A Novel Adsorbent Preparation for Dyes Sequestration. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2018-1201] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Present study deals with use of agricultural based waste material Loquat (Eriobotrya japonica) seeds for removal of toxic Acid orange 7 (AO7) dye from aqueous streams. Batch mode experiments were conducted as function of pH, initial dye concentration, contact time and dosage of adsorbent. Biomass was used in native, pretreated and immobilized forms. Maximum removal was observed at pH 2. Desorption studies were done in order to determine degree of stability and regeneration of immobilized biomass. For equilibrium studies, Langmuir and Freundlich models were applied. Pseudo 1st & 2nd order models were applied on experimental data for reaction kinetics evaluation. Pseudo 2nd order model was best fit for present experiments. Biomass characterization was done by scanning electron microscopy (SEM), Energy dispersive X-ray (EDX) and Fourier Transform Infrared (FTIR) techniques for elucidation of biomass constituents and surface morphology before and after dye loading. It was observed that loquat seeds may be potential adsorbent for removal of toxic dyes from wastewater.
Collapse
Affiliation(s)
- Mukhtar Ahmad
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Ghulam Abbas
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Rizwan Haider
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Fatima Jalal
- Department of Zoology , Government College University Faisalabad , Faisalabad , Pakistan
| | - Ghulam Abbas Shar
- Institute of Chemistry, Shah Abdul Latif University , Khairpur 66020 , Sindh , Pakistan
| | - Gul Afshan Soomro
- Institute of Chemistry, Shah Abdul Latif University , Khairpur 66020 , Sindh , Pakistan
| | - Naseem Qureshi
- Department of Chemistry , Karakoram International University , Gilgit 15100 , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , University of Lahore , Lahore , Pakistan
| | - Arif Nazir
- Department of Chemistry , University of Lahore , Lahore , Pakistan
| |
Collapse
|