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Degradation of Dye and Ammonia by Cu/Fe-Layered Doubled Hydroxide as Heterogeneous Photoactivator of NaClO
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Guoping ZHAO1, Yangyang WANG2, Na LI1, Shengrui SUN2, Yangqiao LIU2
Journal of the Chinese Ceramic Society | 2020, 48(5) : 730 - 738
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Journal of the Chinese Ceramic Society | 2020, 48(5): 730-738
Degradation of Dye and Ammonia by Cu/Fe-Layered Doubled Hydroxide as Heterogeneous Photoactivator of NaClO
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Guoping ZHAO1, Yangyang WANG2, Na LI1, Shengrui SUN2, Yangqiao LIU2
Affiliations
  • 1.Zhejiang Tiandi Environmental Protection Technology Co., Ltd., Hangzhou 311121, China
  • 2.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

    • Zhao Guoping (1981-), male, Senior Engineer. E-mail:

About Author:

Zhao Guoping (1981-), male, Senior Engineer. E-mail:

Published: 2020-05-20 doi: 10.14062/j.issn.0454-5648.2020.05.20190579
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Cu/Fe-layered doubled hydroxide (CuFe LDH) prepared by a coprecipitation method was used to degrade methylene blue (MB) and ammonia as a heterogeneous photoactivator of NaClO. The micro-morphology, reaction kinetics and degradation mechanism were investigated. The layered structure of the samples with Cu/Fe molar ratios from 2∶1 to 4∶1 was analyzed. The catalyst with Cu/Fe molar ratio of 3∶1 exhibits the optimum performance under given conditions (i.e., catalyst dosage of 0.5 g/L and NaClO of 0.075 mL), and the pseudo-first-order rate constant of 30 mL MB (100 mg/L) is 7.9 times greater than that without any catalyst. 30 mL ammonia (100 mg/L) at the catalyst dosage of 3 g/L and NaClO of 0.3 mL can be degraded by 99.5% within 1 min, compared to that of 66.6% without any catalyst. Based on the radical quenching experimental results, the superoxide radicals are the dominant reactive oxidants, and also involve chlorine radicals and hydroxyl radicals. The results by electrochemical impedance spectra and X-ray photoelectron spectroscopy reveal that the photoelectrons can accelerate the in-situ regeneration of reaction activity sites on the surface of catalyst and increase the separation efficiency of photo-induced charges in CuFe LDH/NaClO/light system, resulting in the improved degradation of waste water pollutants.

copper iron layered doubled hydroxide  /  sodium hypochlorite  /  methylene blue  /  ammonia  /  superoxide radical
赵国萍, 王杨杨, 李娜, 孙盛睿, 刘阳桥. 铜铁类水滑石光化学催化降解染料和氨氮应用. 硅酸盐学报, 2020 , 48 (5) : 730 -738 . DOI: 10.14062/j.issn.0454-5648.2020.05.20190579
Guoping ZHAO, Yangyang WANG, Na LI, Shengrui SUN, Yangqiao LIU. Degradation of Dye and Ammonia by Cu/Fe-Layered Doubled Hydroxide as Heterogeneous Photoactivator of NaClO[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (5) : 730 -738 . DOI: 10.14062/j.issn.0454-5648.2020.05.20190579
Appendix
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Year 2020 volume 48 Issue 5
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Article Info
doi: 10.14062/j.issn.0454-5648.2020.05.20190579
  • Receive Date：2019-08-22
  • Online Date：2026-10-29
  • Published：2020-05-20
Article Data
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History
  • Received：2019-08-22
  • Revised：2019-10-22
Funding
Affiliations
    1.Zhejiang Tiandi Environmental Protection Technology Co., Ltd., Hangzhou 311121, China
    2.Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

Corresponding:

SUN Shengrui (1984-), female, Ph.D., Assistant Professor; E-mail:
LIU Yangqiao (1973-), female, Ph.D., Professor
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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