Fenton reaction is widely applied to treat organic contaminant through hydroxyl radicals (HO), which is formed from the catalytic reaction of hydrogen peroxide (H₂O₂) and Fe²⁺. Nevertheless, its well application for actual wastewater has been confined by the narrow range of pH, disproportionation of H₂O₂ and inefficiency of Fe²⁺/Fe³⁺ circulation. To overcome these shortcomings, an improved Fenton-like method applying calcium peroxide (CaO₂) as the substitution of H₂O₂ and molybdenum disulfide (MoS₂) as the co-catalyst was proposed. The results indicated the efficient rhodamine B (RhB) removal (98.6%) was achieved under the conditions of 1 mmol L⁻¹ CaO₂, 0.5 mmol L⁻¹ Fe²⁺, 0.3 g L⁻¹ MoS₂, and initial pH 5.85 within 5 min, and this system could well degrade other dyes, antibiotic, and phenol. The MoS₂ addition could promote the Fe²⁺/Fe³⁺ conversion and H₂O₂ disintegration. The radical masking tests and electron paramagnetic resonance demonstrated that the HO was the main active substances during this process. The decomposition intermediates of RhB were identified through the mass spectra analysis, and their ecotoxicities were assessed by the toxicity estimation software. Finally, this process also presented a favorable performance for the real wastewater treatment, which is a potential route to promote the development of Fenton method.

芬顿反应广泛应用于通过过氧化氢 (H ₂ O ₂ ) 和 Fe ²⁺催化反应形成的羟基自由基 (HO )来处理有机污染物。然而，其在实际废水中的良好应用受到pH值范围窄、H ₂ O ₂歧化和Fe ²⁺ /Fe ³⁺循环效率低下的限制。为了克服这些缺点，一种改进的类芬顿方法应用过氧化钙 (CaO ₂ ) 作为 H ₂ O ₂和二硫化钼 (MoS ₂) 作为助催化剂被提出。结果表明，在 1 mmol L ^-1 CaO ₂、0.5 mmol L ^-1 Fe ²⁺、0.3 g L ^-1 MoS ₂和初始 pH 5.85的条件下，可实现有效去除罗丹明 B (RhB) (98.6%)在5分钟内，该系统可以很好地降解其他染料、抗生素和苯酚。MoS ₂添加可以促进Fe ²⁺ /Fe ³⁺转化和H ₂ O ₂分解。自由基掩蔽试验和电子顺磁共振表明 H2O是这个过程中的主要活性物质。通过质谱分析鉴定了RhB的分解中间体，并通过毒性评估软件评估了它们的生态毒性。最后，该工艺对实际废水处理也表现出良好的性能，是促进芬顿法发展的潜在途径。