Effective removal of dyes from aqueous solutions using a novel antibacterial polymeric adsorbent

Abstract

Here, ethylenediamine-epichlorohydrin-trichlorophenol (EET) cross-linked polymer was synthesized and characterized by Fourier Transforms Infrared spectroscopy (FTIR), thermogravimetric analysis (TGA-DSC) and scanning electron microscopy (SEM). EET exhibited substantial antibacterial activity with inhibition zones of 38 and 64 mm against E. coli and S. aureus bacteria. Therefore, it was applied to treat methyl orange (MO) and rhodamine B (RB) dyes containing synthetic aqueous solutions under varying operation parameters. Notably, 10 and 15 mg of EET removed 98.72% of MO at pH 8 and 92.45% of RB at pH 3. Moreover, EET cross-linked polymer retained stable activities of about 98.6% over five consecutive recycling runs for MO dye. The EET demonstrated a fast adsorption rate and the adsorption data fits well with the pseudo-second-order for both dyes, suggesting chemisorption. Also, considering the correlation coefficient values, the experimental dataset fits suitably with Temkin equation for RB and Langmuir equation for MO. Thermodynamic evaluations for both dyes show spontaneity onto the cross-linked polymer.

Photocatalytic Degradation of Toxic Phenolic Compound and Bacterial Inactivation by Ternary Li doped Zn0.5Ni0.5Fe2O4

“…Table 2 compares the performance of Li/ZNF with various materials in terms of TCP degradation. To degrade TCP, high amounts of catalysts (500–1000 mg.L‐1) were utilized in these studies, and the authors reported high efficiency of 95 to 100 %, which was achieved in 45 to 100 min [51–54] . Although various operational settings were used in each of these investigations, the performance of the Li/ZNF is comparable even at a low dose.…”

“…To degrade TCP, high amounts of catalysts (500-1000 mg.L-1) were utilized in these studies, and the authors reported high efficiency of 95 to 100 %, which was achieved in 45 to 100 min. [51][52][53][54] Although various operational settings were used in each of these investigations, the performance of the Li/ZNF is comparable even at a low dose. Also, unlike the other catalysts, Li/ZNF can be easily retrieved from the reaction tank due to its magnetic properties.…”

Synthesis of a poly(p-aminophenol)/starch/graphene oxide ternary nanocomposite for removal of methylene blue dye from aqueous solution

“…Wastewater contaminated with dyes is considered one of the most significant pollutants from the various industrial sources that cause severe environmental pollution. Many manufacturers of plastics, rubber, textiles, leather, paper, cosmetics, and food use dyes in their products, and the disposal of even small amounts of such can affect the ecosystem and result in serious environmental problems [2,3]. Therefore, removing dyes from wastewater is an important route to significantly reducing water and soil pollution.…”

Adsorption of anionic dyes from textile wastewater utilizing raw corncob

“…Agricultural wastes are mostly containing hemicellulose, lignin, and cellulose of high molecular weight. Some small-sized lignocellulosic materials are much important for the removal of dye molecules [ 20 , 21 , 22 ]. The agricultural wastes have been successfully applied for basic excluding of dyes as well as acid dyes.…”