The riot dyeing agent Rhodamine B is a loaded in ammunition, which can produce serious environmental pollution after use. In order to eliminate the of rhodamine B, decontamination method with simple operation, wide material sources and green environment protection was studied. First, an orthogonal experiment used obtain concentration ratio decontaminant excellent performance, that is, best effe...

This research focuses on the characteristics of polyvinyl alcohol and starch polymer blends doping with Rhodamine-B. The were prepared using solution cast method, which comprises 1:1(wt. /wt.). PVA had different ratios glycerin 0, 25, 30, 35, 40 % wt. ratio 30% wt was found to be most suitable mechanical properties by strength elasticity. blend 1:1 starch/PVA doped Rhoda mine-B dye 1, 2, 3, 4, ...

Addition of β-Cyclodextrin to aqueous solutions of rhodamine B base results in the deaggregation of the dye to its monomer form. This is due to the association of monomeric rhodamine B base to the cyclodextrin. The absorption and emission spectra of the aqueous dye solution have been described. This has also been proved by UV-Vis, FTIR and Scanning Eelectron Microscope (SEM). Ground state (Kg) ...

A highly sensitive and selective Hg probe 4 based on rhodamine-b was developed and characterized. In consideration of environmental and biological application, we connected a water soluble receptor group (sulfonated β-naphtol) and rhodamine-b together through hydrazine hydrate in high yield. The result turns out that this compound not only exhibits excellent sensitivity and selectivity toward H...

A new, simple and highly sensitive kinetic spectrophotometric method was developed for the determination of trace amounts of Ru(III) in the range of 0.06-20 ng/ml .The method is based on the inhibitory effect of ruthenium(III) on the oxidation of Rhodamine B by bromate in acidic and micellar medium. The reaction was monitored spectrophotometrically by measuring the decreasing in absorbance of R...

This study reports decolorization of Rhodamine B and Congo red by a partially purified laccase from Lentinus polychrous Lév. in the presence or absence of 2,2-azinobis (3-ethylbenzothiazoline-6sulfonate) diammonium salt (ABTS) as a redox mediator. The decolorization study showed that about 90% of Rhodamine B could be decolorized within 52 h, whereas Congo red could be decolorized more than 75% ...