铁钼类芬顿催化剂的制备及其降解盐酸四环素的性能研究
刘梦帆 , 彭小倩 , 袁庆路 , 范梦婕 , 陈英文
现代化工 ›› 2025, Vol. 45 ›› Issue (9) : 119 -124.
铁钼类芬顿催化剂的制备及其降解盐酸四环素的性能研究
Preparation of iron-molybdenum Fenton-like catalysts and study on their performance in degrading tetracycline hydrochloride
利用一锅煅烧法制备铁钼类芬顿催化剂(FMN),并利用非均相类芬顿体系对盐酸四环素(TCH)进行降解性能研究。采用XRD、SEM、FT-IR、XPS等手段对催化剂进行表征分析,探究不同因素对TCH废水降解性能的影响,并探索该体系的催化降解机理。结果表明,在反应温度30℃、初始pH=4.5、催化剂FMN材料投加量0.2 g/L、H2O2浓度15 mmol/L的条件下,60 min内该体系对TCH的降解率可达87.2%,同时,该催化剂表现出良好的抗干扰能力和循环稳定性,具备较强的实际应用价值。在降解过程中,·OH和 1O2为主导反应的活性物质,二者协同作用强化了TCH的降解。
An iron-molybdenum Fenton-like catalyst (FMN) is prepared via a one-pot calcination method,and applied in a heterogeneous Fenton-like system to study the degradation performance of tetracycline hydrochloride (TCH).The catalyst is characterized by means of XRD,SEM,FT-IR,and XPS techniques to investigate the influences of various factors on the degradation efficiency of TCH wastewater and to explore the catalytic degradation mechanism of the system.The results demonstrate that the degradation rate of TCH by the system reaches 87.2% within 60 minutes under the conditions that reaction temperature is at 30℃,initial pH=4.5,FMN catalyst dosage is 0.2 g/L,and H2O2 concentration is 15 mmol/L.Additionally,the catalyst exhibits excellent anti-interference capability and cycling stability,indicating a strong potential for practical application.During the TCH degradation process,·OH and 1O2 are identified as the dominant reactive species,and their synergistic effect enhances significantly the degradation of TCH.
tetracycline hydrochloride / Fenton-like / degradation / H2O2 / iron-molybdenum
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国家重点研发计划(2023YFB3810800)
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