Studies on Adsorption of Basic Dyes on Activated Carbon Derived from Phragmites australis (Common Reed)
Journal Title: Universal Journal of Environmental Research and Technology - Year 2012, Vol 2, Issue 3
Abstract
In this study, the adsorption of two basic dyes, namely, Crystal Violet (CV) and Rhodamine B (RB) from aqueous solution by phragmite australis treated with 40% H3PO4 was investigated. Batch experiments were conducted to study the effect of temperature, contact time, pH and carbon dose. Equilibrium adsorption isotherms and kinetics were investigated. The equilibrium experimental data were analyzed by using the Langmuir, Freundlich, Temkin and Harkin – Jura isotherms. The kinetic data obtained was analyzed using a pseudo – first order, pseudo – second order and intra – particle diffusion equations. Dye adsorption was best described by the Langmuir model and with the pseudo – second order kinetic model. Thermodynamic parameters such as free energy (ΔGº), enthalpy (ΔHº), and entropy changes (ΔSº) were evaluated. The surface morphology of modified phragmite australis was characterized by FT – IR spectroscopy, scanning electron microscope (SEM), surface area and Boehm titrations.
Authors and Affiliations
Shouman M. A and Rashwan W. E
Keywords
Related Articles
- EP ID EP31720
- DOI -
- Views 345
- Downloads 1
Spatial Analysis of Composition and Species Interactions with Temporal Variation of Zooplankton Community of Shallow Tropical Lake: Thol Bird Sanctuary, India
Spatial and temporal patterns in the distribution of the zooplankton in a tropical Man-made reservoir- Thol Bird Sanctuary were investigated for two consecutive years from September 2007 to August 2009. The zooplankton...
Antimicrobial Compound from Streptomyces Isolate Characterized Using HPLC
Need for novel, safe and more efficient antibiotics is a key challenge to the pharmaceutical industry today. The ever increasing knowledge in the area of pathogen`s drug resistance has evoked the discovery of new antibi...
Mass Wasting Processes in Khairna Basin: Kumaon Himalayas
A geodynamically active and geomorphologically sensitive study area (the Khairna river basin) lies between 290 23' to 29031' North latitudes and 790 25' to 79039' East longitudes in the Kumaun lesser Himalayas and cover...
Heavy Metal Content in Leaves of Ficus retusa Collected from Contaminated and Uncontaminated Sites in Northern Egypt: Mitigation of Toxicity by Washing Treatments
Leaves of Ficus retusa were collected from three locations; suburban, urban and industrial in Northern Egypt. Concentrations of heavy metals in soils collected from the suburban site were lower than that collected from...
Extraction and Dyeing Behavior of Pomegranate dye on Tencel Fabric
Application of natural dyes for textile is increasing due to the awareness of ecology, environment and pollution control. The objective of this study is to dye Tencel fabric with pomegranate peel natural dye for compara...