袁承业是中国萃取剂化学研究的奠基者，在“两弹一星”等国防任务需求下，成功研制出关键萃取剂如P204 (双(2-乙基己基)磷酸酯)、p350 (甲基膦酸二甲庚酯)等。他还结合有色金属综合利用情况，研制出多种磷萃取剂如P507 (2-乙基已基膦酸-2-乙基已基酯)。袁承业先生团队在大量实验数据的基础上对萃取剂的结构和性能进行了研究，并通过量子化学、分子力学、热力学以及其他测试手段等进行了深入分析，将有机磷萃取剂的化学性能提升至一个新的高度。这些研究为萃取剂的设计与优化提供了坚实的理论基础，同时也推动了工业应用的发展。

A simple two-step hydrothermal method synthesized four different CdS/Fe₃O₄ photocatalysts with varying ratios of mass of CdS to Fe₃O₄. The composition and morphology of the prepared samples were investigated using X-ray diffraction (XRD), Raman spectrum, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Solid UV reflectance spectra testing found that CdS/Fe₃O₄ nanocomposites had good light absorption throughout the spectral range, promoting their photocatalytic properties. Under visible light irradiation, CdS/Fe₃O₄ (2:5) with a mass ratio of 2:5 exhibited excellent photocatalytic performance, with a degradation rate of 98.8% for rhodamine B. Furthermore, after five cycles of photocatalytic degradation reaction, the rhodamine B degradation rate remained at 96.2%, indicating that the photocatalysts have good photocatalytic stability.