Controllable synthesis and adsorption mechanism of flower-like MoS2/g-C3N4 nanocomposites for the removal of methylene blue in water

• DOI: 10.1007/s11051-022-05465-9
• Publication Date: 2022-04-13T09:08:03Z
• Authors: Zhentao Wang; Jaafar Hasan; Jingjing Wang; Caiwei Zhang; Waheed Iqbal; Ninghui Chang; Chuanguang Qin
• Keywords: Methylene blue; Langmuir adsorption model; Endothermic process; Methyl blue

Abstract The fabrication and adsorption mechanism of flower-like MoS2/g-C3N4 nanocomposites as new adsorbent materials were investigated by batch sorption experiments in this paper. The influence of factors such as pH, adsorbent dosage, concentration and temperature on the adsorption properties of flower-like MoS2/g-C3N4 nanocomposites were studied in detailed. The adsorption isotherm data was fitted with the Langmuir model, and the adsorption kinetic characteristics conform to the quasi second-order kinetic equation. Thermodynamic data showed that the adsorption process of methylene blue (MB) was feasible, endothermic and spontaneous. At 45 ℃, the maximum adsorption capacity was 278.4 mg/g. The adsorbed MB solution was used to water the wheat and chickpea plants within 15 days. Compared with MB solution, the treated MB solution made the plants grow much more better.