Purification of RhB dye from aquatic media via CaO-TiO2@g-C3N4 nanocomposite

On the quest to eliminate the noxious RhB dye from aqueous medium, a CaO-TiO2@g-C3N4 sorbent was con-structed by sonication method. The adsorbent's characteristics were identified using XRD, X-ray photoelectron spectroscopy, Fourier Transform Infrared, TEM and BET surface area analyzer techniques. The adsorption pro -cess was examined in a batch system by analyzing the impacts of several experimental factors, including the pH of the solution, contact time, and initial dye concentration. CaO-TiO2@g-C3N4 demonstrates equilibrium for Rh.B dye adhesion after 120 min. Pseudo-first order and pseudo-second-order kinetic models accurately modeled the adsorption process. Based on the Langmuir isotherm at 25 degrees C, the highest adsorption capacity measured was 778.7 mg/g. The CaO-TiO2@g-C3N4 nanocomposite demonstrated satisfactory performance in eliminating Rh.B dye from aquatic media under pH = 7.0, 50.0 ppm concentration and 120-minute equilibrium time which are the ideal neutral aquatic conditions. It can be concluded that CaO-TiO2@g-C3N4 is a useful, economical, and ecological sorbent for taking out dyes from sewage.

Automated summary

A CaO-TiO2@g-C3N4 sorbent was constructed using sonication method for the elimination of RhB dye from aqueous medium. The sorbent demonstrated equilibrium for the dye adhesion after 120 minutes, with a maximum adsorption capacity of 778.7 mg/g. The nanocomposite showed satisfactory performance in neutral aquatic conditions.