PREPARATION OF Fe/Mn-PAC CATALYSTS AND DEGRADATION OF REACTIVE BRILLIANT BLUE KN-R BY CATALYTIC OZONATION

WU Xinming; AN Hao; ZHAO Junyu; OU Zixuan; HAO Liangshan; LI Chao

doi:10.13205/j.hjgc.202304005

Volume 41 Issue 4

Apr. 2023

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WU Xinming, AN Hao, ZHAO Junyu, OU Zixuan, HAO Liangshan, LI Chao. PREPARATION OF Fe/Mn-PAC CATALYSTS AND DEGRADATION OF REACTIVE BRILLIANT BLUE KN-R BY CATALYTIC OZONATION[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 32-39. doi: 10.13205/j.hjgc.202304005

Citation:

WU Xinming, AN Hao, ZHAO Junyu, OU Zixuan, HAO Liangshan, LI Chao. PREPARATION OF Fe/Mn-PAC CATALYSTS AND DEGRADATION OF REACTIVE BRILLIANT BLUE KN-R BY CATALYTIC OZONATION[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 32-39. doi: 10.13205/j.hjgc.202304005

Citation:

WU Xinming, AN Hao, ZHAO Junyu, OU Zixuan, HAO Liangshan, LI Chao. PREPARATION OF Fe/Mn-PAC CATALYSTS AND DEGRADATION OF REACTIVE BRILLIANT BLUE KN-R BY CATALYTIC OZONATION[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 32-39. doi: 10.13205/j.hjgc.202304005

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PREPARATION OF Fe/Mn-PAC CATALYSTS AND DEGRADATION OF REACTIVE BRILLIANT BLUE KN-R BY CATALYTIC OZONATION

doi: 10.13205/j.hjgc.202304005

WU Xinming^1,2,
AN Hao³,
ZHAO Junyu^1,2,
OU Zixuan^1,2,
HAO Liangshan^1,2,
LI Chao^{1,2
,
,}

1. College of Environment, Hohai University, Nanjing 210098, China;
2. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098, China;
3. China MCC5 Group Co., Ltd, Chengdu 610000, China

Received Date: 2022-07-18
Available Online: 2023-05-26
Publish Date: 2023-04-01

Abstract

Abstract

Typical dyestuffs, such as KN-R in printing and dyeing wastewater were difficult to be effectively removed by traditional biochemical treatment technology, due to their biological toxicity and chemical stability, which seriously polluted the water environment. To obtain an efficient KN-R removal approach, Fe/Mn-PAC catalyst was prepared by impregnation calcination. The surface morphology and structure of the catalysts were characterized, and the effects of different factors on the degradation of KN-R were also investigated. Meanwhile, the reusability and stability of the catalysts were studied. It was demonstrated that the Fe/Mn-PAC catalyst had a rough surface with more microporous structures, and the metal oxides on the catalyst surface were dense lichen-like structures, which were conducive to enhancing the catalytic performance. At a catalyst dosage of 400 mg/L, an initial pH of 7.5, an Fe/Mn feed ratio of 1∶1 and a loading amount of 4%, Fe/Mn-PAC showed the best catalytic activity for KN-R degradation, with over 90% of KN-R removed within 45 min. After five recycling cycles, the KN-R removal rate was still 84.7%. The above results demonstrated that the synthesized Fe/Mn-PAC catalyst possessed excellent catalytic capabilities and structural stability, and provided technical support to realize the effective removal of KN-R from printing and dyeing wastewater.
- iron and manganese bimetallic oxides,
- active carbon,
- anthraquinone dye,
- degradation performance,
- ozone catalytic oxidation

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References(32)

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