Page 189 - 《精细化工》2020年第9期

第 9 期 阮 炽，等: 聚吡咯改性石墨毡电极的氧还原性能及应用 ·1903·

环降解实验。经 5 次循环使用，电极活性未见明显 40(20): 3671-3682.
[2] MARTINEZ-HUITLE C A, RODRIGO M A, SIRÉS I, et al. Single
变化，乙基纤维素生产废水的 COD 降解率均在 85%
and coupled electrochemical processes and reactors for the abatement
以上（图 10b），这表明聚吡咯改性的石墨毡电极具 of organic water pollutants: A critical review[J]. Chemical Reviews,
有很好的稳定性。 2015, 115(24): 13362-13407.
[3] BRILLAS E, SIRÉS I, OTURAN M A. Electro-Fenton process and

related electrochemical technologies based on Fenton’s reaction
chemistry[J]. Chemical Reviews, 2009, 109(12): 6570-6631.
[4] KURNIAWAN T A, LO W H, CHAN G Y S. Radicals-catalyzed
oxidation reactions for degradation of recalcitrant compounds from
landfill leachate[J]. Chemical Engineering Journal, 2006, 125(1):
35-57.
[5] LE T X H, BECHELANY M, CRETIN M. Carbon felt based-electrodes
for energy and environmental applications: A review[J]. Carbon,
2017, 122: 564-591.
[6] ZHOU L (周蕾). Preparation of cathodic materials and investigation
of rotating disk reactor for electro-Fenton system[D]. Tianjin: Nankai
University (南开大学), 2013.
[7] MIAO J, ZHU H, TANG Y, et al. Graphite felt electrochemically
modified in H 2SO 4 solution used as a cathode to produce H 2O 2 for
pre-oxidation of drinking water[J]. Chemical Engineering Journal,
2014, 250: 312-318.
[8] LE T X H, CHARMETTE C, BECHELANY M, et al. Facile
preparation of porous carbon cathode to eliminate paracetamol in
aqueous medium using electro-Fenton system[J]. Electrochimica
Acta, 2016, 188: 378-384.
[9] FELLINGER T P, HASCHE F, STRASSER P, et al. Mesoporous
nitrogen-doped carbon for the electrocatalytic synthesis of hydrogen
peroxide[J]. Journal of the American Chemical Society, 2012, 134(9):
4072-4075.
[10] HE Z X, SHI L, SHEN J X, et al. Effects of nitrogen doping on the
electrochemical performance of graphite felts for vanadium redox

flow batteries[J]. International Journal of Energy Research, 2015,
图 10 阴极电势对乙基纤维素工艺废水 COD 降解速率的 39(5): 709-716.
影响（a）和稳定性实验结果（b） [11] LI W (李伟). Investigation on preparation of polypyrrole composites
and the properties of the charge storage in microbial fuel cells[D].
Fig. 10 Effects of cathode potential on the COD degradation
rate (a) of wastewater from ethyl cellulose process Harbin: Harbin Engineering University (哈尔滨工程大学), 2019.
and stability tests (b) [12] XU S Z (许思哲). Synthesis of layered PPy/CRGO nanocomposites
and their applications in supercapacitor electrodes[D]. Shanghai:
Shanghai Jiao Tong University (上海交通大学), 2011.
3 结论 [13] ZHANG X H, WANG S S, LU S, et al. Influence of doping anions
on structure and properties of electro-polymerized polypyrrole
counter electrodes for use in dye-sensitized solar cells[J]. Journal of
通过电化学氧化聚合聚吡咯成功地在石墨毡表 Power Sources, 2014, 246: 491-498.
面引入了吡咯氮，显著提高了石墨毡的两电子 ORR [14] PAN Z W H, WANG K, WANG Y, et al. In-situ electrosynthesis of
hydrogen peroxide and wastewater treatment application: A novel
活性和 H 2 O 2 生成速率。硫酸钠作为聚合支持电解质
strategy for graphite felt activation[J]. Applied Catalysis B:
有利于获得高的两电子 ORR 活性。聚合时间影响聚 Environmental, 2018, 237: 392-400.
吡咯的厚度，从而影响改性电极的电荷传递电阻。 [15] Ministry of Environmental Protection. Water quality–Determination
of the chemical oxygen demand-Dichromate method: HJ 828-2017[S].
聚合时间为 1000 s 时所得改性电极的 H 2 O 2 生成速 Beijing: China Environmental Press（中国环境出版社）, 2017: 3-30.
2
率最大，达到 29.40 mg/(L·cm ·h)。以聚吡咯改性石 [16] LI J J (李娟娟). Electrochemical synthesis and investigation of
墨毡为阴极构建的电芬顿体系能够有效降解乙基纤 electrochemical performance of doped polypyrrole and its
composites[D]. Lanzhou: Lanzhou University of Technology (兰州
维素生产的废水，阴极电势为–0.55 V 时，去除率达 理工大学), 2017.
到 88.8%，出水 COD 低于 100 mg/L。循环实验表明， [17] AJJAN F N, JAFARI M J, RĘBIŚ T, et al. Spectroelectrochemical
investigation of redox states in a polypyrrole/lignin composite
聚吡咯改性石墨毡电极在电芬顿体系中具有很好的 electrode material[J]. Journal of Materials Chemistry A, 2015, 3(24):
稳定性和反应活性，有利于电芬顿氧化技术在高盐 12927-12937.
有机废水处理方面得到实际应用。 [18] WANG Y, LIU Y H, WANG K, et al. Preparation and
characterization of a novel KOH activated graphite felt cathode for
the electro-Fenton process[J]. Applied Catalysis B: Environmental,
参考文献：
2015, 165: 360-368.
[1] LEFEBVRE O, MOLETTA R. Treatment of organic pollution in
industrial saline wastewater: A literature review[J]. Water Res, 2006, （下转第 1917 页）