283 publications from this institution
Corrosion inhibitors are widely used in acid solutions during pickling and descaling. In this study, the inhibition performance of different alkaline metal salts in the concentration range 0-0.1 M has been found out. The corrosion behavior of low carbon steel in 1 M HCl in the presence of different metal cations and different anions is studied using weight loss and OCP (Open Circuit Potential) methods at 20 åC. It is found that the addition of these salts inhibits the corrosion markedly. The inhibition effect is in the following order Na2SO4 >NaI > LiCl > NaCl > KCl > NaNO3 > NaBr.
Mesoporous polyvinyl alcohol/chitosan/silica composite nanofiber (PCSCN) as a dye adsorbent was prepared using electrospinning and used for removing Direct Red 80 (DR80). The PCSCN was characterized using SEM, FTIR, and AFM. Dye adsorption was an endothermic reaction and followed the Langmuir isotherm and pseudo‐second order kinetics. The effects of operational parameters were investigated. The optimum condition was initial pH 2, adsorbent dosage = 0.015 g, initial dye concentration = 15 mg/L, and the optimum adsorption capacity of 322 mg/g. The results showed that PCSCN was a promising adsorbent to remove dye from colored wastewater. © 2018 American Institute of Chemical Engineers Environ Prog, 38: S100–S109, 2019
