Hydrothermal synthesis of 1T-WS_2 nanosheets with excellent adsorption performance for dye removal from wastewater

摘要

The 1T-WS2 semiconductors were synthesized via a facile hydrothermal method and characterized by a series of technologies. The WS2 adsorbents showed excellent adsorption performances (210.2 mg/g) and ultrafast adsorption rate (2 min) toward methylene blue (MB) under ultrasound. The high adsorption capacity was attributed to its multilayer structure and large surface area, which provided more easily accessible adsorption sites for MB. Moreover, the adsorption capability of this material exhibited satisfactory tolerance against the changes in both pH and adsorption temperature. (C) 2019 Elsevier B.V. All rights reserved.