期刊论文

Efficient degradation of sulfamethoxazole by ascorbic acid modified Mn3O4via peroxymonosulfate activation

中文

中国环境科学

1000-6923

2024

44

1

158-166

10.3969/j.issn.1000-6923.2024.01.017

2023NK2031:湖南省科技厅重点研发项目 2022SK2091:湖南省科技厅重点研发项目 2023JJ40031:湖南省自然科学基金青年基金项目

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采用水热-超声法制备抗坏血酸(AA)改性的Mn3O4(AA-MO),并通过XRD、FTIR、SEM、TEM和XPS等技术手段表征样品的物理化学性质.将AA-MO用于活化过硫酸氢...展开更多 采用水热-超声法制备抗坏血酸(AA)改性的Mn3O4(AA-MO),并通过XRD、FTIR、SEM、TEM和XPS等技术手段表征样品的物理化学性质.将AA-MO用于活化过硫酸氢盐(PMS)降解磺胺甲恶唑(SMX),结果表明,AA-MO/PMS体系在2.0~10.0的pH值范围内催化效能先升后降,在中性和偏中性环境中具有最佳降解效果.PMS浓度和催化剂投加量的增大均能有效促进SMX的降解.稳定性实验显示,在3次循环使用后AA-MO相比MO具有更稳定的催化效能.自由基淬灭结果表明硫酸根自由基...

A new ascorbic acid modified Mn3O4(AA-MO)was fabricated by a hydrothermal-ultrasonic method.The sample’s physical and chemical properties were characteristiced by XRD,FTIR,SEM,TEM and XPS.AA-MO was utilized to activate peroxymonosulfate(PMS)for sul...MORE A new ascorbic acid modified Mn3O4(AA-MO)was fabricated by a hydrothermal-ultrasonic method.The sample’s physical and chemical properties were characteristiced by XRD,FTIR,SEM,TEM and XPS.AA-MO was utilized to activate peroxymonosulfate(PMS)for sulfamethoxazole(SMX)degradation.The results de...