A composite structure of the zeolite and activated carbon is successfully synthesized through CO₂ activation followed by the hydrothermal synthesis method using coal gangue as the raw material. The zeolite-activated carbon composite is used as an adsorbent for the removal of heavy metal ions and macromolecular organics. The integrative adsorption property of the composite could be improved by adding a certain amount of powdered coal into coal gangue as the extra carbon source. The specific surface area of a so-prepared composite is 669.4 m²/g, which is much larger than that of the pure NaA type zeolite (16.96 m²/g). As a result, the zeolite-activated carbon shows high adsorptive efficiencies for Cu²⁺ (92.8 %) and Rh-B (94.2 %). The thermodynamic and kinetic processes for adsorption of Cu²⁺ and Rh-B onto pure zeolite and zeolite-activated carbon are also investigated systematically. The mechanistic study of zeolite-activated carbon indicates that the uniform micropores in zeolite are suitable for the adsorption of heavy metal ions and the multilevel porous structure of activated carbon could accommodate macromolecular organics. The high value-added product prepared from coal gangue is a good alternative to treat industrial waste water.

通过CO ₂活化，然后以煤石为原料的水热合成法成功地合成了沸石和活性炭的复合结构。沸石活化的碳复合材料用作吸附剂，用于去除重金属离子和高分子有机物。通过向煤石中添加一定量的粉煤作为额外的碳源，可以提高复合材料的整体吸附性能。一个如此制备的复合材料的比表面积为669.4米² / g，这是比纯的NaA型沸石的大得多（16.96米² /克）。结果，沸石活性炭显示出对Cu ^2+的高吸附效率。（92.8％）和Rh-B（94.2％）。还系统地研究了Cu ²⁺和Rh-B吸附到纯沸石和沸石活性炭上的热力学和动力学过程。沸石活性炭的机理研究表明，沸石中均匀的微孔适合于重金属离子的吸附，并且活性炭的多级多孔结构可以容纳大分子有机物。由煤石制得的高附加值产品是处理工业废水的良好替代品。