Treatment of acid red 73 by persulfate in the presence of rGO-Fe<sub>3</sub>O<sub>4</sub> composite

Fei YIN; Cui WANG; Shaoping TONG

doi:10.11949/j.issn.0438-1157.20180918

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Treatment of acid red 73 by persulfate in the presence of rGO-Fe₃O₄ composite

Energy and environmental engineering | 更新时间：2020-06-24

- Treatment of acid red 73 by persulfate in the presence of rGO-Fe₃O₄ composite
- CIESC Journal Vol. 70, Issue 1, Pages: 207-213(2019)
- 作者机构：
  
  浙江工业大学化学工程学院，绿色化学合成技术国家重点实验室培育基地，浙江杭州 310032
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20180918
  CLC： X 703
- Received：13 August 2018，
  
  Revised：2018-09-16，
  
  Published：05 January 2019
- 稿件说明：
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尹飞, 王翠, 童少平. rGO-Fe₃O₄活化过硫酸盐处理酸性红73[J]. 化工学报, 2019, 70(1): 207-213 DOI: 10.11949/j.issn.0438-1157.20180918.

YIN Fei, WANG Cui, TONG Shaoping. Treatment of acid red 73 by persulfate in the presence of rGO-Fe₃O₄ composite[J]. CIESC Journal, 2019, 70(1): 207-213 DOI: 10.11949/j.issn.0438-1157.20180918.
尹飞, 王翠, 童少平. rGO-Fe₃O₄活化过硫酸盐处理酸性红73[J]. 化工学报, 2019, 70(1): 207-213 DOI: 10.11949/j.issn.0438-1157.20180918. DOI：

YIN Fei, WANG Cui, TONG Shaoping. Treatment of acid red 73 by persulfate in the presence of rGO-Fe₃O₄ composite[J]. CIESC Journal, 2019, 70(1): 207-213 DOI: 10.11949/j.issn.0438-1157.20180918. DOI：

摘要

采用共沉淀法制备了还原石墨烯纳米片和磁铁矿复合材料（rGO-Fe

）。利用X射线衍射（XRD）、X射线光电子能谱（XPS）和透射电镜（TEM）对其进行了表征。以酸性红73（AR73）为目标物，研究了rGO-Fe

活化过硫酸盐（PS）处理酸性红73的效能，考察了催化剂投加量、PS浓度、溶液初始pH以及反应温度的影响。结果表明，室温下催化剂投加量为1.0 g/L、PS的浓度为1.0 g/L及初始pH为6.9时，10 min内50 mg/L酸性红73的脱色率达到100%。淬灭实验结果表明rGO-Fe

/PS反应体系同时存在SO

-⋅

、•OH和单线态氧

，其中

的氧化反应起主导作用。复合材料rGO-Fe

不但活性高，而且便于分离，应用前景良好。

Abstract

A reduced graphene oxide nanosheet-iron oxide composite (rGO-Fe

) was synthesized by using coprecipitation method

and characterized by using X-ray diffraction (XRD)

X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The rGO-Fe

composite was used as heterogeneous catalyst to activate persulfate (PS) to decolor acid red 73 (AR73). The effects of catalyst dosage

PS concentration

initial pH value and reaction temperature on the decolorization efficiency were investigated. The results showed that 50 mg/L AR73 was totally removed in 10 min at room temperature when the concentrations of rGO-Fe

and PS were both 1.0 g/L. Singlet oxygen was confirmed to be the primary reactive oxygen species by quenching experiment. This study shows that the rGO-Fe

composite is a promising catalyst for activating PS to treat wastewater due to its high activity and easy separation.

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Treatment of acid red 73 by persulfate in the presence of rGO-Fe3O4 composite

DOI：10.11949/j.issn.0438-1157.20180918

摘要

Abstract

关键词

Keywords

references

Treatment of acid red 73 by persulfate in the presence of rGO-Fe₃O₄ composite