Adsorption of ethidium bromide (EtBr) from aqueous solutions by natural pumice and aluminium-coated pumice

Chitin Adsorbents for Toxic Metals: A Review

“…Based on the above, it is necessary to carefully treat and remove the effluents containing heavy metals. One of the most trendy and promising techniques is considered to be adsorption due to its simplicity, low cost and reuse potential [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. In this review article, a screening of the recent literature will be done regarding the use of chitin adsorbents as potential materials for the removal of toxic metals.…”

Mechanistic insights into ethidium bromide removal by palygorskite from contaminated water

“…1). The maximum EtBr adsorption capacity calculated from the Langmuir model was 275 mmol/kg, which was well above 149 mmol/kg (58.82 mg/g) and 195 mmol/kg (76.92 mg/g) for EtBr adsorbed on a natural pumice, and aluminium-coated pumice, respectively, at pH=8 (Heibati et al, 2016). Fitting of the adsorption isotherm data to the Freundlich model suggested that EtBr adsorption on PFl-1 followed a multi-layer adsorption pattern on heterogeneous adsorption sites (Figueroa et al, 2004;Heibati et al, 2016).…”

“…The equilibrium time was 8 min for EtBr adsorption on CuO nanoparticles at an initial concentration of 0.3 mg/L, final pH 9, and adsorbent dose 0.03 g/20 mL (Fakhri, 2014). Besides, the equilibrium time was 3 h for EtBr adsorption on both natural pumice and aluminium-coated pumice at initial concentrations of 30 and 100 mg/L, initial pH 8, and adsorbent dose 8 g/L (Heibati et al, 2016). For PFl-1, the EtBr adsorption reached to 88% of its maximum capacity within just 15 min, which indicated that the clay mineral had advantage over other adsorbents in terms of quick removal of EtBr from aqueous solutions.…”

Efficient phenol removal from aqueous solution using iron-coated pumice and leca as an available adsorbents: evalution of kinetics and isotherm studies

“…Various materials such as activated carbon (Abussaud et al, 2016), coconut shell (Din et al, 2009), single-walled and multi-walled carbon nanotubes (Dehghani et al, 2016) and chitin (Dursun and Kalayci, 2005) have been used for the phenol removal from aqueous solutions. However, the use of low-cost and local adsorbents for pollutant removal is highly interesting (Heibati et al, 2016). For this purpose, several studies have been conducted on the use of the pumice or LECA as an local low-cost in both natural and modified forms, to remove the pollutants such as phenol and 4-chlorophenol (Akbal, 2005a), cadmium (Panuccio et al, 2009), fluoride (Asgari et al, 2012), basic dyes (Akbal, 2005b), heavy metals (Malakootian et al, 2009), from aqueous solution (Asgari et al, 2012).…”