Conducting hydrogels possessing antibacterial activity were developed using a two-step free-radical aqueous polymerization method to incorporate polyaniline chains into an adsorbent Guar gum/acrylic acid hydrogel network. The material properties of the synthesized samples were characterized using FTIR spectroscopy, thermal analysis and scanning electron microscopy techniques. Conducting hydrogels were tested for antibacterial activities against gram-positive Staphylococcus aureus and gram-negative Escherichia coli bacteria and demonstrated antibacterial activity. Synthesized hydrogel samples can be potential adsorbent materials for dye removal applications.
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| http://dx.doi.org/10.1016/j.jenvman.2015.07.044 | DOI Listing |
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Article Synopsis
- Effluent from the textile industry, particularly dye wastewater like malachite green, poses significant environmental risks, leading to increased research into sustainable dye removal methods.
- A hydrogel composite was developed using black liquor from corncobs and sodium alginate, achieving optimal dye adsorption at a 1:4 weight ratio, with a capacity of 650 mg/g for a dye concentration of 1500 mg/L.
- Characterization techniques confirmed high dye removal efficiencies (up to 95.54%) for both the black liquor/sodium alginate and alkaline lignin/sodium alginate hydrogels, with the adsorption kinetics fitting the pseudo-second-order model and a strong correlation to the Langmuir isotherm.
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