Removal of basic dyes from aqueous medium using a novel polymer: Jalshakti.
Studies were carried out to remove basic dyes such as safranine T, methylene blue, crystal violet, light green, brilliant milling violet and patent blue VS from their aqueous solutions using biodegradable polymeric absorbent material, viz., Jalshakti (JS). Results showed that 93% safranine T, 98% methylene blue and 84% crystal violet were adsorbed on JS relative to their initial concentration (10 mg L(-1)). The optimum pH was found to be 6.0+/-0.5 and smaller size of particle of JS resulted better adsorptive removal of the dyes. IR spectroscopic and potassium ion release studies revealed that basic dyes were selectively removed through adsorption-ion-exchange mechanism involving carboxylic groups and K+ ions of JS.
Dhodapkar
Rita
R
National Environmental Engineering Research Institute, Nehru Marg, Nagpur 440 020, India. ritadhodapkar@hotmail.com
Rao
N N
NN
Pande
S P
SP
Kaul
S N
SN
D000327:Adsorption; D002244:Carbon / Q000737:chemistry; D004396:Coloring Agents / Q000737:chemistry* / Q000302:isolation & purification*; D004058:Diffusion; D005069:Evaluation Studies as Topic; D005840:Gentian Violet / Q000737:chemistry / Q000302:isolation & purification; D006863:Hydrogen-Ion Concentration; D007526:Isoelectric Point; D007700:Kinetics; D008739:Methyl Green / Q000737:chemistry / Q000302:isolation & purification; D008751:Methylene Blue / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D010316:Particle Size; D010619:Phenazines / Q000737:chemistry / Q000302:isolation & purification; D010783:Photometry; D011108:Polymers / Q000737:chemistry*; D011199:Potentiometry; D012996:Solutions; D013055:Spectrophotometry, Infrared; D014867:Water / Q000737:chemistry*; D018508:Water Purification
D004396:Coloring Agents; D010619:Phenazines; D011108:Polymers; D012996:Solutions; D014867:Water; D002244:Carbon; D008739:Methyl Green; D005840:Gentian Violet; D008751:Methylene Blue; C009195:safranine T