Tetracycline removal from aqueous solution by biochar derived from algae and modified with MnMoO4: effects of operating parameters, isotherm, kinetic, and thermodynamic study.

In the present research, a novel biocomposite that could efficiently remove tetracycline (TC) from wastewater was synthesized. The biocomposite was fabricated by biochar of microalgae (BC) and MnMoO₄ (MM) nanoparticles in different ratios to find a biocomposite with optimum characteristic as an efficient adsorbent. Finally, the optimum one was characterized to confirm its properties as an economical and efficient adsorbent for TC adsorption. Adsorption experiments including kinetic, isotherm and thermodynamic modeling were conducted to verify the high potential of novel biocomposite for TC adsorption. TC as an antibiotic frequently is found in soil, sediment, and aquatic environments which may lead to adverse side effects on human health including bacterial resistance and change in the microbial ecological functions. This makes the present study comprehensive and allows us to reach a strong conclusion on selecting biomaterial for biosorption purposes. Therefore, the present study will add unique knowledge to the science of biosorption.