Potential Biosorbent Derived fromCalligonum polygonoidesfor Removal of Methylene Blue Dye from Aqueous Solution

Abstract

The ash of C. polygonoides (locally called balanza) was collected from Lakki Marwat, Khyber Pakhtunkhwa, Pakistan, and was utilized as biosorbent for methylene blue (MB) removal from aqueous solution. The ash was used as biosorbent without any physical or chemical treatment. The biosorbent was characterized by using various techniques such as Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM). The particle size and surface area were measured using particle size analyzer and Brunauer-Emmett-Teller equation (BET), respectively. The SEM and BET results expressed that the adsorbent has porous nature. Effects of various conditions such as initial concentration of methylene blue (MB), initial pH, contact time, dosage of biosorbent, and stirring rate were also investigated for the adsorption process. The rate of the adsorption of MB on biomass sample was fast, and equilibrium has been achieved within 1 hour. The kinetics of MB adsorption on biosorbent was studied by pseudo-first- and pseudo-second-order kinetic models and the pseudo-second-order has better mathematical fit with correlation coefficient value (R 2) of 0.999. The study revealed that C. polygonoides ash proved to be an effective, alternative, inexpensive, and environmentally benign biosorbent for MB removal from aqueous solution.

"BIOSORPTION OF COPPER (II) ON TO THE WASTE LEAVES OF KAFAL (Myrica esculenta) "

“…The removal of copper (II) ions was studied over a Fig.-1 shows that the removal efficiency of the metal ion is very rapid between the time 30 to 50 minutes, and a large fraction of the total amount of metal ion was removed within a few minutes. This is due to the availability of the active sites and uncovered surface on the adsorbent 50 . After 60 minutes the uptake of metal ion on biosorbent was not rapid and become about constant.…”

Reducing hazardous heavy metal ions using mangium bark waste

“…8). Xiao and Thomas (2004) and Nasrullah et al (2015) reported that the absorption capacity of a biosorbent was determined by its porosity and the chemical reactivity of the functional groups within it. FTIR spectra showed a strong peak at 3413 cm −1 , indicating a number of hydroxyl and amine functional groups (Fig.…”

“…8a) (Othman and Asharuddin 2013;Sulaymon et al 2013). Nasrullah et al (2015) stated that a peak at approximately 3700 cm −1 also indicates a hydroxyl functional group. At 2920 cm −1 , CH bonds in aliphatic and olefinic compounds are apparent (Lopes et al 2014).…”

“…Othman and Asharuddin (2013) also stated that hydroxyl, amine, carbonyl, and carboxyl groups in the biosorbent play an important role in heavy metal absorption. In addition, Nasrullah et al (2015) claimed that the number of polar groups on the biosorbent surface can increase the cation exchange in the heavy metal absorption process.…”

Experimental Design Approach for Methylene Blue Dye Removal in Aqueous Environment by Nitrilotriacetic Modified Banana Pith

“…7 As for the physical and chemical methods, these techniques usually involve expensive instrument or chemical reagent, and often resulted in high sludge production which in turn creates a handling and disposal problem. 8 In view of the limitations and problems associated with the conventional treatment methods mentioned above, research has therefore been intensified on the utilization and development of low cost materials as the potential low cost adsorbents for dye removal.…”