Peanut hull, an agricultural waste, proved to act as an efficient adsorbent for five anionic and cationic dyes. The process was found to be a pH dependent, suggesting the adsorption is controlled by interaction between the charged dye molecule and the surface charge on the adsorbent. The effect of variable parameters (contact time, pH, mass of adsorbent, dye concentration, agitation and activat...

background and objectives: synthetic dyes are recalcitrant to degradation and toxic to different organisms. decolorization of textile wastewaters is one of the major concerns since last decades. physical-chemical treatments are very expensive and frequently producing large amounts of toxic wastes. biological treatments can be more convenient. in the present study, an attempt has been made for d...

Abstract Co and N co-modified mesoporous carbon composites (Co/N-mC) have been simply prepared at low cost from the carbonization of ZIF-67 wherein not only providing surface N-modification for promoting adsorption behavior acidic dyes, but also constructing a magnetic property convenient separation. Co/N-mC composite presented ability MO (178 mg g −1 ) > RhB (141 (T = 25 °C, pH 7.0, C 0 20 ...

The sorption of three basic dyes, named basic violet 10, basic violet 1, and basic green 4, from aqueous solutions onto sugarcane dust was studied. The results revealed the potential of sugarcane dust, a waste material, to be a low-cost sorbent. Equilibrium isotherms were analyzed using the Langmuir, the Freundlich, and the three-parameter Redlich-Peterson isotherms. In order to determine the b...

Live cell imaging complements the array of biochemical and molecular genetic approaches to provide a comprehensive insight into functional dependencies and molecular interactions in fission yeast. Fluorescent proteins and vital dyes reveal dynamic changes in the spatial distribution of organelles and the proteome and how each alters in response to changes in environmental and genetic compositio...

This paper aims to evaluate the simultaneous adsorption of basic red 2 (BR2) and violet 3 (BV3) in a binary system batch mode using date stones as low cost adsorbents. For both dyes, experimental kinetic data were well fitted by Brouers–Sotolongo model (R =0.99) intraparticle diffusion was controlling step mass transfer mechanisms. The extent found be lower for BR2 (1.13×10 -11 cm /s) than BV3 ...

Evidence has been presented that when human rectal mucosa and polyps are fixed with buffered OsO(4) according to the method of Palade, staining of paraffin sections by basic and acidic dyes results in a distinct color difference between chromatin and cytoplasm. Furthermore, the Feulgen reaction also can be carried out successfully and such OsO(4)-fixed Feulgen-stained sections are especially su...