WebJan 30, 2024 · The adsorption of Congo red (CR) on Co-doped ZnO followed the pseudo-second-order model and the Langmuir isotherm. The adsorption process was spontaneous through monolayer chemisorption, and the maximum adsorption capacity was 230 mg/g. Finally, the Co-doped ZnO was successfully incorporated into an alginate membrane by … WebNov 1, 1994 · The pH and solvent effects on the structure of the azo dye Congo red were investigated. The absorption, resonance Raman and NMR spectra give evidence of the …
Congo red dyestuff Britannica
WebMay 18, 2024 · to 1.0 gram, the pH of the solution was varied from pH 6 to 9 and the initial concentration of congo red was varied from 20 ppm to 100 ppm. The pH was adjusted … WebMaximum Congo-red removal of 96.764 % and adsorption capacity of 149.507 mg/g was found at pH 2, 30 °C, 125 rpm, 150 mg/L and 1gram/L of reaction mixture for an optimum contact time of 2.5 hours. greenhouse windows for kitchens for sale
Acid-Base Indicators - Chemistry LibreTexts
WebEscherichia coli colonies that differ in matrix production display different morphologies on Congo red agar media, which we exploited for screening bacterial isolates capable of inhibiting the matrix. WebApr 12, 2024 · Isotherm modeling was used to determine the efficiency of dye adsorption for the electrosprayed nanocomposite membrane and the confirmed maximum adsorptive capacities of 182.5 mg/g for congo red and 219.3 mg/g for methylene blue, which fits with the Langmuir isotherm model, suggesting uniform single-layer adsorption. Webdescribe congo red dye a pH indicator dye. Ingested yeast cells will appear RED during early stages after being eaten. Later (sometimes you have to wait ½ hr) some of the yeast cells will enter into food vacuoles to which acidosomes have fused, lowering the pH. The yeast cells will turn BLUE, indicating active digestive processes in the cell! greenhouse windows for bathroom