Performance evaluation of carbon black nanoparticles for removal of zinc and copper metal ions from aqueous solution: A kinetics and thermodynamics study

Abstract

Water pollution with heavy metals is a major concern/threat posed to human health. Heavy metals such as zinc and copper, because of their cumulative effects on humans and other organisms, have harmful effects. This research was an experimental study in which effects of variables such as pH, contact time, concentrations of zinc and copper, adsorbent dose, and temperature were investigated on the efficiency of the adsorption process. Data were analyzed with different isotherms, and the kinetics and thermodynamics of the process were also determined. The results showed that the adsorption capacity increased by increasing pH, contact time, the concentration of zinc and copper, and reduction of the adsorbent dose. The adsorption capacity of carbon black nanoparticles for Zn and Cu was 34.56 and 47.36 mg/g, respectively. Comparison of the results of R2 showed that adsorption of Zn and Cu ions followed the Freundlich and Langmuir models, respectively. The results showed that carbon black nanoparticles can be an effective adsorbent for the removal of zinc and copper ions from aqueous solutions, the price of their synthesis is lower than that of many other nanoparticles, and they can be used in real terms.

Preparation of Poly(acrylic acid) ‐Boron Nitride Composite as a Highly Efficient Adsorbent for Adsorptive Removal of Heavy Metal Ions

“…(5)), Freudlich (Eq. (6)) isotherms were used to fit the static experimental data for the adsorption process of Cu(II) [46–52] …”

A dual response UV-vis and fluorescence receptor based on acetylenic-indole conjoined silatrane for selective recognition of Co2+ and Cu2+ ions and in silico antidiabetic activity

“…[13][14][15] Both Co 2+ and Cu 2+ are extensively used in industries such as paper mills, dyeing, batteries, and metal plating. 16,17 Various methods have been employed to detect these metal ions, but UV-vis and fluorescence spectroscopy methods are preferred due to their easy sample preparation and excellent selectivity and sensitivity. 18,19 While some probes have been developed for dual recognition of Co 2+ and Cu 2+ , there is still a need for innovative receptor molecules with improved performance.…”