College of Environment and Chemical Engineering and State Key Laboratory of Hollow-Fiber Membrane Materials and Membrane Processes, Tianjin Polytechnic University, Tianjin, 300387, People's Republic of China.
College of Science, Tianjin University of Science and Technology, Tianjin, 300457, People's Republic of China.
Environ Sci Pollut Res Int. 2018 Apr;25(11):10714-10719. doi: 10.1007/s11356-018-1369-8. Epub 2018 Feb 1.
A novel sonocatalyst CdS was prepared by a facile precipitation method, and characterized by X-ray powder diffraction, transmission electron microscopy, UV-vis absorption spectroscopy, and photoluminescence spectroscopy. Comparative sonocatalytic degradation experiments were carried out in different conditions under ultrasonic irradiation and with rhodamine B (RhB) used as the model substrate. Results indicate that CdS is a highly active sonocatalyst. The efficiency of RhB sonodegradation in aqueous solutions within 4 h is up to 70% after the addition of CdS. Abundant •OH during the RhB sonodegradation was detected, which may be responsible for the high sonodegradation rate over CdS under ultrasonic radiation.
一种新型的声催化剂 CdS 通过简便的沉淀法制备，并通过 X 射线粉末衍射、透射电子显微镜、紫外-可见吸收光谱和光致发光光谱进行了表征。在超声辐射下，以罗丹明 B（RhB）为模型底物，在不同条件下进行了比较声催化降解实验。结果表明，CdS 是一种高活性的声催化剂。在添加 CdS 后，水溶液中 RhB 的 4 小时内的声降解效率高达 70%。在 RhB 的声降解过程中检测到大量的 •OH，这可能是超声辐射下 CdS 具有高声降解率的原因。
