Sonocatalytic Methylene Blue in The Presence of Fe3O4-CuO-TiO2 Nanocomposites Heterostructure

[摘要] In this work, the emphasis was mainly placed on investigating the sonocatalytic activity of Fe3O4-CuO-TiO2nanocomposites heterostructure. The prepared samples were characterized by X-ray diffraction (XRD), Vibrating Sample Magnetometer (VSM), Brunauer-Emmett-Teller (BET) Surface Area Analysis. Methylene blue dye was selected to examine the sonocatalytic activity of Fe3O4-CuO-TiO2nanocomposites heterostructure. The degradation reaction processes were monitored by UV-vis spectrophotometer. The influence on the activity of the Fe3O4-CuO-TiO2nanocomposites heterostructure such as TiO2loading was studied. The sonocatalyst Fe3O4-CuO-TiO2with molar ratio of 1:1:5 showed the highest sonocatalytic activity. At last, the experiment also indicated that holes are the main reactive species in the photodegradation mechanism in methylene blue.

[发布机构] Departemen Fisika, Fakultas MIPA, Universitas Indonesia, Depok; 16424, Indonesia^1;Integrated Laboratory of Energy and Environment, Fakultas MIPA, Universitas Indonesia, Depok; 16424, Indonesia^2

[效力级别] 化学

[关键词] Brunauer-emmett-teller surface areas;Degradation reaction;Methylene Blue;Methylene blue dye;Reactive species;Sonocatalytic;UV-Vis spectrophotometers;Vibrating sample magnetometer