Degradation and mechanism of tetracycline hydrochloride in wastewater by Si-FeOOH /H<sub>2</sub>O<sub>2</sub> Fenton-like

JIANG Shengtao; ZHU Jianzhong; GUAN Yujiang; BAI Shuli; YAO Jun; YE Qingmei

doi:10.11949/j.issn.0438-1157.20150047

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Degradation and mechanism of tetracycline hydrochloride in wastewater by Si-FeOOH /H₂O₂ Fenton-like

更新时间：2025-12-10

- Degradation and mechanism of tetracycline hydrochloride in wastewater by Si-FeOOH /H₂O₂ Fenton-like
- CIESC Journal Issue 10, Pages: 4244-4251(2015)
- 作者机构：
  
  1. 台州学院浙江省植物进化生态学与保护重点实验室,浙江,台州,318000
  2. 河海大学环境学院浅水湖泊综合治理与资源开发教育部重点实验室,江苏,南京,210098
  3. 浙江新农化工股份有限公司,浙江,台州,317300
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150047
  CLC： 703
- Online First：05 October 2015，
  
  Published：05 October 2015
- 稿件说明：
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JIANG Shengtao, ZHU Jianzhong, GUAN Yujiang, et al. Degradation and mechanism of tetracycline hydrochloride in wastewater by Si-FeOOH /H₂O₂ Fenton-like[J]. CIESC Journal, 2015, (10): 4244-4251. DOI: 10.11949/j.issn.0438-1157.20150047.
DOI：

JIANG Shengtao, ZHU Jianzhong, GUAN Yujiang, et al. Degradation and mechanism of tetracycline hydrochloride in wastewater by Si-FeOOH /H₂O₂ Fenton-like[J]. CIESC Journal, 2015, (10): 4244-4251. DOI: 10.11949/j.issn.0438-1157.20150047. DOI：

摘要

采用碱沉法制备的Si-FeOOH作为非均相类芬顿催化剂

研究其催化降解盐酸四环素废水的效能

考察了催化剂投量、pH、过氧化氢加入量对盐酸四环素降解效能和反应速率的影响。实验结果表明:在催化剂投加量3.0 g·L-1、H2O2投加量9.9 mmol·L-1、pH为3、室温[(25±1)℃]的条件下

盐酸四环素降解率为90%

一级反应速率常数为0.0504 min-1。与催化剂FeOOH相比

类芬顿催化剂Si-FeOOH性能更卓越。同时采用探针化合物正丁醇、苯醌

证明了Si-FeOOH /H2O2 催化体系中的氧化活性种主要为羟基自由基(·OH)和超氧自由基(HO2·)

并推测了其催化反应机理。

Abstract

The performance of Si-FeOOH

as a type of Fenton-like heterogeneous catalyst made by alkaline precipitation methods

was evaluated with degrading tetracycline hydrochloride (TH) in wastewater and reaction condition including catalyst loading

pH and hydrogen peroxide dosage examined. The results show that the degradation rate of tetracycline hydrochloride can reach up to 90% and the reaction rate 0.0504 min-1 at catalyst loading 3.0 g·L-1

H2O2 dosage 9.9 mmol·L-1

pH 3 and temperature (25±1)℃. A comparison with FeOOH catalyst indicates that Fenton-like Si-FeOOH is better than FeOOH. Various contaminants and probe compounds (n-butanol

benzoquinone) were used to identify the active species involved in the catalytic system. The results revealed that the hydroxyl radicals (·OH) and superoxide radical (HO2·) may be responsible for the degradation of tetracycline hydrochloride (TH). The possible catalytic oxidation mechanism was also discussed. The use of Si-FeOOH /H2O2 system may be a feasible approach for the elimination of widely existing pollutants.

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Degradation and mechanism of tetracycline hydrochloride in wastewater by Si-FeOOH /H2O2 Fenton-like

DOI：10.11949/j.issn.0438-1157.20150047

摘要

Abstract

关键词

Keywords

references

Degradation and mechanism of tetracycline hydrochloride in wastewater by Si-FeOOH /H₂O₂ Fenton-like