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| 真空紫外活化亚氯酸盐降解酸性红G的机理 |
| Mechanism of Acid Red G Degradation by VUV activated Chlorite |
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| DOI： |
| 中文关键词: 酸性红G 真空紫外 亚氯酸盐 活性自由基 氧化降解 |
| 英文关键词: Acidic red G VUV Chlorite Active radical Oxidation degradation |
| 基金项目:国家自然科学基金资助项目（No53270021）；安徽省自然科学基金资助项目（2208085US20）；安徽省教育厅创新团队基金资助项目（2022AH010019） |
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| 中文摘要: |
| 采用真空紫外（VUV）活化亚氯酸盐（ClO-2），研究其对偶氮染料酸性红G（ARG）的氧化降解机理，考察不同体系、ClO-2浓度、初始pH值、ARG初始浓度、无机阴离子和印染助剂对ARG降解效能的影响。结果表明：在ARG初始质量浓度为50mg/L、ClO-2投加浓度为04mmol/L的条件下，反应10min时，VUV/ClO-2体系中ARG去除率可达983%。ARG去除速率随pH值的增大而降低，Cl-会促进ARG氧化分解，HCO-3有微弱的抑制作用，NO-3、SO2-4影响较小，柠檬酸钠和十二烷基苯磺酸钠抑制作用显著。VUV/ClO-2体系中主要氧化物质为·OH、1O2、Cl·和ClO·，ARG降解机理为偶氮键断裂和萘环被破坏。 |
| 英文摘要: |
| The oxidative degradation mechanism of azo dye acid red G by vacuum ultraviolet（VUV） activated chlorite（ClO-2） was studied， and the effects of different systems， ClO-2 concentration， initial pH value， initial concentration of acid red G， inorganic anions， printing and dyeing auxiliaries on the degradation efficiency of acid red G were explored The results showed that when the initial mass concentration of acid red G was 50mg/L， the concentration of ClO-2 was 04mmol/L and the reaction time was 10min， the removal rate of acid red G in VUV/ClO-2 system could reach 983% The removal rate of ARG decreased with the increase of pH value. Cl- promoted the oxidative decomposition of ARG HCO-3had a weak inhibitory effect， while NO-3 and SO2-4had aminor impact Sodium citrate and SDBS had a significant inhibitory effect The main oxidizing substances in VUV/ClO-2 system were ·OH，1O2， Cl·and ClO· The mechanism of ARG degradation was the fracture of azo bond and the destruction of naphthalene ring. |
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