![Open Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextgreen.png)
![Restricted Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextred.png)
Efficient Organic-MGO Matrix as Adsorbent for Heavy Metal Uptake: Spectroscopic, Adsorption Isotherms, Kinetic and Thermodynamic Analysis
In this study, a new adsorbent has been developed by modifying a low-cost and readily available waste, namely the dried orange (Citrus aurantium Linn)peel (CiR). The removal of heavy metals pollutants by binding of magnesium oxides (MgO) on the peel represents a simple, economical, and faster method. Various analysis, including X-ray diffraction, Fourier transforms infrared spectroscopy and application of mathematical models, have been performed on the modified adsorbent (dried Citrus reticulata peel + MgO; CiR-MgO matrix).The abundant free functional groups present in the biomass and metal oxides collectively exert interactive forces leading to the sorption of Zn<sup>2+</sup> heavy metals. The Langmuir isotherm and pseudo-first order kinetic models are confirmed as the best fitted model of the adsorption process through chi-analysis. The rate-limiting step of intra-particle diffusion governs the adsorption process. This method is best suited for fixed-bed column application due to its fast kinetics, hydrophilic nature, and regeneration process with 0.005 M HCl.
Keywords
Agricultural waste, Citrus aurantium Linn, Heavy metals, Low-cost adsorbents, Organic-metal matrix
User
Font Size
Information
![](https://i-scholar.in/public/site/images/abstractview.png)
Abstract Views: 19
![](https://i-scholar.in/public/site/images/pdfview.png)