In this paper, coal gangue, a solid waste is used as raw material to provide silicon and aluminum sources for synthesis of zeolite. A coal gangue zeolite based Cu/Fe–X catalyst is successfully prepared by immersion-calcination method, which is used to remove Rhodamine B from aqueous solution. The characterization results show that Cu and Fe have been successfully loaded on zeolite, not damaged its structure, and these nanoparticles are highly dispersed and low crystallinity. This special structure will enhance its catalytic ability to activate H₂O₂. The experiment showed that hydroxyl radical (·OH) was the main active species for catalytic degradation of Rhodamine B, and the circulation of Cu²⁺ to Cu¹⁺ and Fe³⁺ to Fe²⁺ could synergistically produce ·OH. Furthermore, the redox potential of Cu¹⁺ and Cu²⁺ is lower than Fe²⁺ and Fe³⁺, which can promote Fe³⁺ circulate to Fe²⁺, further promote Fe²⁺ to activate H₂O₂ to decompose into ·OH, and overcome the speed limiting step of Fenton-Like catalytic reaction. The Cu/Fe–X catalyst can activate H₂O₂ in wide pH range (1–10). Under optimal conditions, the catalytic degradation rate can reach 99.9%, and the TOC removal rate is as high as 98.5%. Therefore, Cu/Fe–X/H₂O₂ system can effectively remove organic dyes, and has a high industrial application prospect.

本文以固体废物煤矸石为原料，为沸石的合成提供硅源和铝源。采用浸渍-煅烧法成功制备了煤矸石沸石基Cu/Fe-X催化剂，用于去除水溶液中的罗丹明B。表征结果表明，Cu和Fe已成功负载在沸石上，未破坏其结构，且这些纳米颗粒高度分散、结晶度低。这种特殊的结构将增强其活化H ₂ O ₂的催化能力。^{实验表明，羟基自由基(·OH)是催化降解罗丹明B的主要活性物种，Cu 2+}循环为Cu ¹⁺和Fe ³⁺与Fe ²⁺可以协同产生·OH。^{此外，Cu 1+}和Cu ²⁺的氧化还原电位低于Fe ²⁺和Fe ³⁺，可以促进Fe ³⁺循环为Fe ²⁺，进一步促进Fe ²⁺活化H ₂ O ₂分解为Fe 2+ 。 ·OH，克服类Fenton催化反应的限速步骤。Cu/Fe-X催化剂可以在较宽的pH范围（1-10）内活化H ₂ O _{2 。}在最佳条件下，催化降解率可达99.9%，TOC去除率高达98.5%。因此，Cu/Fe–X/H ₂ O₂系统能有效去除有机染料，具有较高的工业应用前景。