纳米花状MnO<sub>2</sub>/PPS功能复合滤料的制备及其NH<sub>3</sub>-SCR脱硝性能研究

郑伟杰; 郑玉婴; 陈健; 邹海强; 付彬彬; 陈雪红

doi:10.11777/j.issn1000-3304.2017.17014

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纳米花状MnO₂/PPS功能复合滤料的制备及其NH₃-SCR脱硝性能研究

研究论文 | 更新时间：2021-01-26

- 纳米花状MnO₂/PPS功能复合滤料的制备及其NH₃-SCR脱硝性能研究
- Fabrication of nf-MnO₂/PPS Functional Composites for Selective Reduction of NO_x with NH₃
- 高分子学报 2017年第11期页码：1806-1815
- 作者机构：
  
  福州大学材料科学与工程学院福州 350108
- 作者简介：
  
  郑玉婴, E-mail: yyzheng@fzu.edu.cn Yu-ying Zheng, E-mail: yyzheng@fzu.edu.cn
- 基金信息：
  
  福建省高校产学合作科技重大关键资助项目(2015H0016)
- DOI：10.11777/j.issn1000-3304.2017.17014
  中图分类号：
- 纸质出版日期：2017-11-20，
  
  收稿日期：2017-1-16，
  
  修回日期：2017-3-21，
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郑伟杰, 郑玉婴, 陈健, 邹海强, 付彬彬, 陈雪红. 纳米花状MnO₂/PPS功能复合滤料的制备及其NH₃-SCR脱硝性能研究[J]. 高分子学报, 2017,(11):1806-1815.

Wei-jie Zheng, Yu-ying Zheng, Jian Chen, Hai-qiang Zou, Bin-bin Fu, Xue-hong Chen. Fabrication of nf-MnO₂/PPS Functional Composites for Selective Reduction of NO_x with NH₃[J]. Acta Polymerica Sinica, 2017,(11):1806-1815.
郑伟杰, 郑玉婴, 陈健, 邹海强, 付彬彬, 陈雪红. 纳米花状MnO₂/PPS功能复合滤料的制备及其NH₃-SCR脱硝性能研究[J]. 高分子学报, 2017,(11):1806-1815. DOI： 10.11777/j.issn1000-3304.2017.17014.

Wei-jie Zheng, Yu-ying Zheng, Jian Chen, Hai-qiang Zou, Bin-bin Fu, Xue-hong Chen. Fabrication of nf-MnO₂/PPS Functional Composites for Selective Reduction of NO_x with NH₃[J]. Acta Polymerica Sinica, 2017,(11):1806-1815. DOI： 10.11777/j.issn1000-3304.2017.17014.

摘要

首先采用表面活性剂十二烷基硫酸钠（SDS）对聚苯硫醚（PPS）滤料进行表面活化，由于SDS亲水基团（SO

）与溶液中的H

发生静电吸附作用，使得之后高锰酸钾在PPS滤料表面原位生成纳米花状二氧化锰，制得nf-MnO

/PPS复合滤料；并通过探讨高锰酸钾与滤料的质量比、反应时间对nf-MnO

/PPS复合滤料结构及性能的影响，从而得到最佳制备条件.并利用场发扫描电子显微镜（FESEM）、透射电子显微镜（TEM）、X-射线光电子能谱（XPS）、脱硝活性测试等分析手段对该复合滤料的结构和性能进行了研究；在其基础上利用原位聚合法，在复合滤料表面形成聚吡咯包覆层，制得nf-MnO

/PPy@PPS复合滤料，并通过多种测试分析手段对改性滤料的结构和性能进行了研究.最后，脱硝测试结果显示，由最佳条件制备出的nf-MnO

/PPS表现出了最优异的脱硝活性，其在80~180 ℃时的NO转化率达到36%~100%，nf-MnO

/PPy@PPS表现出了更好的结合强度和催化稳定性能，但脱硝活性有所下降.

Abstract

Polyphenylene sulfide (PPS) filter was firstly treated by lauryl sodium sulfate (SDS) to activate the surface of PPS. Because of the electrostatic interaction between SO

and H

the potassium permanganate (KMnO

) can transform into nano flower of manganese dioxide by redox reaction on the surface of PPS. The as-prepared functional composites were denoted as nf-MnO

/PPS. The preparation conditions were optimized as follows:mass ratio of KMnO

to PPS was 0.5 and reaction time 5.5 h. The best preparation condition was obtained through studying the relationship between the mass ratio of KMnO

/PPS

reaction time and the performance of the composites. Field emission scanning electron microscopy (FESEM)

transmission electron microscopy (TEM)

X-ray photoelectron spectroscopy (XPS)

Fourier transform infrared spectroscopy (FTIR) and SCR activity test were used to investigate the structure

properties and the performance of the composites. FESEM displayed that flake-like MnO

catalyst was uniformly distributed on the surface of PPS filter material

the as-prepared nf-MnO

catalyst was coated on PPS material by a redox method

and the results showed that all the composite filter materials presented excellent SCR activity

and the conversion of NO could reach 100% at 180 ℃. In addition

the above-mentioned composite filter material

denoted as nf-MnO

/PPy@PPS

was then covered by a layer of polypyrrole (PPy) composites

via

the interfacial polymerization technique. The structure properties and performance of nf-MnO

/PPy@PPS were also studied using. FESEM

TEM

XPS

FTIR and SCR activity test. Finally

as shown by SCR activity test

the nf-MnO

/PPS

fabricated under the optimized conditions

led to the conversion of NO to 36%-100% in the temperature range of 80-180 ℃. The nf-MnO

/PPy@PPS demonstrated higher mechanical strength of combination and catalytic stability

with slightly decreased conversion of NO.

关键词

聚苯硫醚(PPS)吡咯原位聚合法结合强度催化剂稳定性能

Keywords

Polyphenylene sulphidePolypyrroleIn situ polymerizationStrength of combinationCatalytic stability

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纳米花状MnO2/PPS功能复合滤料的制备及其NH3-SCR脱硝性能研究

Fabrication of nf-MnO2/PPS Functional Composites for Selective Reduction of NOx with NH3

DOI：10.11777/j.issn1000-3304.2017.17014

摘要

Abstract

关键词

Keywords

references

纳米花状MnO₂/PPS功能复合滤料的制备及其NH₃-SCR脱硝性能研究

Fabrication of nf-MnO₂/PPS Functional Composites for Selective Reduction of NO_x with NH₃