Abstract
A novel manganese titanium oxide/biological carbon (Mn/Ti/BC) composite was synthesized and prepared by hydrothermal synthesis to further improve the adsorption performance of Rhodamine B. The microstructure of the composite was analyzed by characterization means such as scanning electron microscopy(SEM),FT-IR spectroscopy and X-ray diffraction. The adsorption experiments were carried out by varying the parameters such as adsorption time, adsorbent dosage, initial concentration of the solution, and temperature. The adsorbed samples were analyzed by UV spectrophotometer. The obtained data were tested for the Langmuir and Freundlich isotherm models at equilibrium. The R2 (correlation coefficient) values indicated that the data were in good agreement with the Langmuir adsorption model. The experimental results showed that the removal rate of Rhodamine B reached 98% when the solution concentration of Rhodamine B was 100 mg/L, and the addition of manganese titanium oxide-biomass carbon composite was 0.5 g, and the dosage ratio was 1:1:1 (Mn–Ti–C). The adsorption process was chemisorption in accordance with the secondary kinetic equation. With low cost, fast adsorption, and good stability,the Mn–Ti–C composite is an excellent adsorption material with good application prospects.
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