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 406
- Downloads 1
Seasonal Variations in Physicochemical Parameters and Primary Productivity of Shelar lake Bhiwandi, Thane, Maharashtra
Water has unique physico-chemical properties. It serves both as a factor and an environmental medium or substratum in which organisms live. Water in the ponds, lakes and river basins is economically more important as i...
Ascorbic Protects Testicular Oxidative Stress and Spermatozoa Deformationsin Male Swiss Mice Exposedto Lead Acetate
Lead is the known environmental contaminant adversely affecting the male reproductive system in human and experimental animals. The cytotoxic effects of lead on male reproductive system involve the production of reacti...
Lead Induced Infertility in Swiss Mice and Role of Antioxidants
In the present study, effects of lead toxicity on fertility of female Swiss mice have been investigated. Implantation sites, litter size, body weight of pups and histopathology of ovary were investigated. Lead toxicity...
Occurrence of Poecilotheria Metallica Pocock, 1899 from Seshachalam Hills, Eastern Ghats, Andhra Pradesh, India
The genus Poecilotheria is known to occur only in India and Sri Lanka. The genus is represented by 8 species in India and 7 in Sri Lanka. Since August 2011 onwards, we are carrying out a detailed biodiversity inventory...
Studies on Textile Industry Waste Water Using Saw Dust as a Low Cost Adsorbent
The textile wastewater contains different colors which are harmful to the environment. The removal of dyes from effluent using adsorption process provides an attractive alternative treatment, especially if the adsorban...