Utilization of Modified Spent Coffee Ground Biochar for Cr(VI) Adsorption from Aqueous Solutions

Removal of Heavy Metals From Aqueous Solutions Using Biochar Derived From Agricultural Waste: Kinetics, Mechanisms, and Cost Analysis.

This study evaluates the adsorption performance and mechanisms of Pb(II), Cu(II), Cd(II), and Zn(II) removal from water using coconut-fiber-derived biochar (CFBC). The physicochemical properties of CFBC were characterized by proximate and ultimate analyses, Fourier-transform infrared spectroscopy (FTIR), X-ray diffract...

Preparation and use of low-cost magneto adsorbent for Cr (VI) removal from synthetic aqueous solutions

In this study, we prepared a low-cost adsorbent, magnetised activated carbon (MAC), from agricultural waste (Dodonaea Viscosa tree branches) and used it to adsorb hexavalent chromium (Cr (VI)) from aqueous solutions. The study includes a framework for material characterisation by (XRD, FTIR, SEM and BET). The major ope...

Adsorptive Removal of Cr(VI) from Aqueous Solution Using Phosphoric Acid Activated Carbon Derived from Calabash (Crescentia cujete) Fruit Shell: Kinetics, Isotherms, and Thermodynamic Analysis

Biochar derived from bean husk for the removal of lead and hexavalent chromium from aqueous solutions

Heavy metals are among the most prevalent and difficult environmental pollutants to manage. This study explored the conversion of bean husks into biochar and evaluated its effectiveness as an inexpensive adsorbent to eliminate Pb(II) and Cr(VI) from water. Several analytical methods were utilized to ascertain the prope...

Binary System Adsorption of Methylene Blue and Congo Red Using Magnetic Activated Carbon

Dye pollution is an environmental concern posing significant risks to human health and water quality, showing the need for effective methods to reduce dye concentrations in contaminated water. Therefore, this study aimed to explore the reduction of dye concentration in a binary system through adsorption using magnetic...

Sustainable and efficient sorption of uranium (VI) from aqueous solutions using alkali-activated cotton stalk with characterization, mechanistic insights and reusability

Eco-friendly alkali-activated cotton stalk was utilised for uranium (VI) sorption from aqueous solutions. The structure and morphology of the sorbent were characterised and elucidated by Fourier transform infrared (FTIR) spectroscopy, energy-dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM) and X-...