Synthesis of Bi_0.5Li_0.5TiO₃ Nanoparticles by Sol-Gel Method for Photocatalytic Methylene Blue Degradation and Antibacterial Activity

Abstract

Facile synthesis of nanomaterials for advanced characterization and application is gaining interest from many researchers. In this study, Bi0.5Li0.5TiO3 nanoparticles were synthesized through the sol-gel method. The photocatalytic activity of the synthesized Bi0.5Li0.5TiO3 was investigated for degradation of methylene blue (MB) under UV irradiation. A photocatalytic efficiency of 74% was found at 150 min when the degradation was performed in the basic media, and the kinetic rate constant was calculated equal to 0.0093 min-1. The antibacterial activity of Bi0.5Li0.5TiO3 nanoparticles was evaluated against E. coli, and the results showed considerable efficiency.

Removal of Methylene Blue Dye Using Nickel Oxide/ Carboxymethyl Cellulose Nanocomposite: Kinetic, Equilibrium and Thermodynamic Studies

“…Langmuir model assumes that the adsorbate mol-ecules MB can be the only adsorption on one active site without interaction between the adsorbent molecules and after equilibrium, there is no supplemental adsorption. It is expressed in equation (6) as follow [45]. where C e , Q e , qmax, and k L are the equilibrium concentration of MB (mg/L), the amount of MB dye adsorbed by adsorbent (nanocomposite) at equilibrium (mg/g), the theoretical maximum monolayer adsorption capacity of the adsorbent (mg/g) and constant of Langmuir (L/mg), respectively.…”

“…Because of that, increasing attention has been on removing MB from the wastewater. Many techniques have been extensively used for the treatment and removal of dye from waste water, including photo-degradation [5], adsorption [6], coagulation, and flocculation [7], cation exchange [8], and advanced oxidation processes [9]. Remarkably, the adsorption technique has been attracted attention because of its simplicity of design, ease of operation, high-efficiency, and environmentally friendly, which encouraged researchers to synthesize useful materials for this purpose [10].…”

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“…Langmuir model assumes that the adsorbate mol-ecules MB can be the only adsorption on one active site without interaction between the adsorbent molecules and after equilibrium, there is no supplemental adsorption. It is expressed in equation (6) as follow [45]. where C e , Q e , qmax, and k L are the equilibrium concentration of MB (mg/L), the amount of MB dye adsorbed by adsorbent (nanocomposite) at equilibrium (mg/g), the theoretical maximum monolayer adsorption capacity of the adsorbent (mg/g) and constant of Langmuir (L/mg), respectively.…”

“…Because of that, increasing attention has been on removing MB from the wastewater. Many techniques have been extensively used for the treatment and removal of dye from waste water, including photo-degradation [5], adsorption [6], coagulation, and flocculation [7], cation exchange [8], and advanced oxidation processes [9]. Remarkably, the adsorption technique has been attracted attention because of its simplicity of design, ease of operation, high-efficiency, and environmentally friendly, which encouraged researchers to synthesize useful materials for this purpose [10].…”