通过硫酸盐 (vs) 硫酸盐激活的水性铁酸盐 (vi) 降解阿特拉辛:性能,产品和途径
Qin Guo1, Chaoting Guan2,3, Yi Yang3
1Guangdong Basic Research Center of Excellence for Ecological Security and Green Development, Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology Guangzhou 510006 China jiangjinhit@126.com jiangjin@gdut.edu.cn.
RSC advances
|December 19, 2025
概括
硫酸盐和硫酸盐等减硫剂增强了阿特拉 (ATZ) 的铁酸盐氧化. 不同的减硫剂产生不同的氧化产品和氧化途径,为消除除草剂的先进氧化过程提供了洞察力.
科学领域:
- 环境化学环境化学
- 水处理技术水处理技术
- 氧化化学 有氧化化学
背景情况:
- 铁酸盐 (Fe ((VI)) 是有机污染物的强有力的氧化剂.
- 减硫剂 (硫酸盐,硫酸盐) 可以增强Fe (VI) 的氧化.
- 阿特拉 (ATZ) 是一种广泛使用的除草剂,对环境造成了关注.
研究的目的:
- 系统地比较Fe ((VI) /硫酸盐和Fe ((VI) /硫酸盐系统在ATZ降解中的氧化性能.
- 为了识别和量化ATZ氧化产品.
- 阐明降解途径和不同反应性物种的作用.
主要方法:
- 通过Fe (VI) /硫酸盐和Fe (VI) /硫酸盐系统对ATZ降解的比较研究.
- 反应条件的优化 (pH,剂量,同时存在的成分).
- 使用分析技术识别和量化氧化产品.
- 通过电子转移和反应性物种分析对降解途径的机械研究.
主要成果:
- 两个Fe (VI) /硫酸盐和Fe (VI) /硫酸盐系统都有效降解了ATZ,在中性pH下具有最佳性能.
- 确定和量化了五种ATZ氧化产物.
- 降解涉及电子转移,导致脱基化,基氧化和脱化-化.
- 关键产品 (阿特拉胺/甲基阿特拉) 的比例在两种系统之间有显著差异,表明不同的活性氧化剂 (Fe(V) /Fe(IV) /SO4•−与Fe(IV)).
结论:
- (VI) /硫减硫剂系统对ATZ降解是有效的.
- 减少硫剂的选择会影响氧化途径和产品的分布.
- 了解这些差异对于优化用于除草剂清除的先进氧化过程至关重要.
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