Anti-microbial and methylene blue dye adsorption properties of cotton fabrics modified with TiO₂, Fe, Ag-doped TiO₂, and graphene oxide nanomaterials

Abstract

Nanoparticle materials have received increasing attention in the functional modification of textiles. In this work, pure TiO2, Ag-doped TiO2, Fe-doped TiO2, and graphene oxide nanoparticles were used to impart the anti-bacterial and adsorptive properties of nanoparticles to cotton fabric. The treated fabric materials were investigated by X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. The obtained treated fabrics were used as adsorbents for the removal of methylene blue from aqueous solution. The functionalized cotton fabrics were tested for their anti-microbial capability against Escherichia coli, Bacillus cereus, and Candida albicans. All the functionalized fabrics have higher anti-microbial activity compared to untreated cotton, especially the fabrics containing silver and Fe-doped TiO2. The optimum conditions of the adsorption process are determined via the study of the effect of the initial concentration of dye, pH, and contact time on the removal efficiency. Langmuir, Freundlich, and Temkin isotherms are applied for the equilibrium adsorption data. GO-Cot and Ag-Ti@GO-Cot samples showed the highest adsorption removal activity. The linear correlation coefficient ( R2) showed that the Temkin model well fitted the data of adsorption in the GO-Cot sample. The analysis of experimental data with different kinetic models showed that the pseudo-second-order kinetic model well fitted the adsorption data better than the other kinetic models of the pseudo-first-order, Elovich, and intra-particle diffusion.

Frankincense-Based Functionalized Multiwalled Carbon Nanotubes with Iron Oxide Composites for Efficient Removal of Crystal Violet: Kinetic and Equilibrium Analysis

“…25,26 Its versatility, cost-effectiveness, and wide applicability have also contributed to its popularity in the field of effluent treatment. 27 For the adsorptive elimination of dyes in wastewater, a variety of adsorbents and biosorbents have been used, including chitosan nanoparticles, modified montmorillonite, palm kernel shellbased activated carbon, and magnetic graphene oxide. 28−31 Adsorbents are commonly derived from various sources, such as agricultural and industrial waste, biomass, clay, and carbonous materials.…”

“…Although these methods effectively remove organic and inorganic pollutants, they are time-consuming, expensive, require many disposals, and frequently fail to remove resistant chemicals. , Adsorption, however, has proven to be the most adaptable and useful technology for removing dyes from effluent. It has consistently demonstrated excellent results in terms of its ability to remove dyes from effluents, making it the preferred choice for many industrial treatment processes. , Its versatility, cost-effectiveness, and wide applicability have also contributed to its popularity in the field of effluent treatment . For the adsorptive elimination of dyes in wastewater, a variety of adsorbents and biosorbents have been used, including chitosan nanoparticles, modified montmorillonite, palm kernel shell-based activated carbon, and magnetic graphene oxide. − …”

Efficient and Rapid Removal of Pb(II) and Cu(II) Heavy Metals from Aqueous Solutions by MgO Nanorods

“…Chemical and physical procedures such as chemical oxidation [18], ozonation, adsorption [19], froth flotations, reverse osmosis, membrane separation [20], coagulation [21], flocculation, and electrocoagulation are often utilized in the treatment process [19]. Regarding dye elimination, adsorption is the favored technique between the others used because of its affordable price, easy preparation, and a diminutive amount of energy consumption [22][23][24]. Therefore, developing reliable adsorbents nowadays becomes a necessity Nanoparticles (NPs) have received much attention, since they are harmless and exhibit unique features at the nanoscale that improve their potential for use in various disciplines [25][26][27][28].…”