In Situ Generation of Hydrogen Peroxide Using Polymetallic-Doped g-C3N4 for Pollutant Removal

Fenton reaction is a powerful technology for pollutants’ removal from water. However, the cost of H2O2 becomes one of the major stumbling blocks in its application. H2O2 has a relatively high price and is eas...

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Autores principales:	Liyan Wang, Jianqing Ma, Qianhui Guo, Liang Liu, Jiangnan Shou, Aojie Sun, Liaoyuan Zhao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	in situ generation hydrogen peroxide pollutant removal graphitic carbon nitride Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/701f7a3805944e8f9274c71c9381690b
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spelling	oai:doaj.org-article:701f7a3805944e8f9274c71c9381690b2021-11-25T16:38:20ZIn Situ Generation of Hydrogen Peroxide Using Polymetallic-Doped g-C<sub>3</sub>N<sub>4</sub> for Pollutant Removal10.3390/app1122107972076-3417https://doaj.org/article/701f7a3805944e8f9274c71c9381690b2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10797https://doaj.org/toc/2076-3417Fenton reaction is a powerful technology for pollutants’ removal from water. However, the cost of H<sub>2</sub>O<sub>2</sub> becomes one of the major stumbling blocks in its application. H<sub>2</sub>O<sub>2</sub> has a relatively high price and is easily decomposed during transportation and use; therefore, in situ synthesis of H<sub>2</sub>O<sub>2</sub> could improve economic benefits effectively. In this study, a Fe/Ni/Pd ternary metal-doped graphitic carbon nitride (FeNi-Pd@CN) is prepared, and in situ H<sub>2</sub>O<sub>2</sub> generation using formic acid as hydrogen sources for organics removal was proved. The catalyst is advantageous, as H<sub>2</sub>O<sub>2</sub> could accumulate to 1.69 mmol/L in 150 min when pumping air rather than oxygen gases in other studies. Furthermore, 92.0% of Acid Red 73 (200 mg/L) and 93.2% of tetracycline hydrochloride (10 mg/L) could be removed in 150 min without any pH adjustment. Characterization results show that the catalyst has good stability in metal leaching and reuse tests. It is proved that •OH and •O<sub>2</sub><sup>−</sup> are the main reactive oxygen species, and a synergistic effect between Fe and Ni exists that enhances ROS generation for organics degradation. This work offers a promising method to remove refectory organic contaminants from industrial wastewater.Liyan WangJianqing MaQianhui GuoLiang LiuJiangnan ShouAojie SunLiaoyuan ZhaoMDPI AGarticlein situ generationhydrogen peroxidepollutant removalgraphitic carbon nitrideTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10797, p 10797 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	in situ generation hydrogen peroxide pollutant removal graphitic carbon nitride Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	in situ generation hydrogen peroxide pollutant removal graphitic carbon nitride Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Liyan Wang Jianqing Ma Qianhui Guo Liang Liu Jiangnan Shou Aojie Sun Liaoyuan Zhao In Situ Generation of Hydrogen Peroxide Using Polymetallic-Doped g-C<sub>3</sub>N<sub>4</sub> for Pollutant Removal
description	Fenton reaction is a powerful technology for pollutants’ removal from water. However, the cost of H<sub>2</sub>O<sub>2</sub> becomes one of the major stumbling blocks in its application. H<sub>2</sub>O<sub>2</sub> has a relatively high price and is easily decomposed during transportation and use; therefore, in situ synthesis of H<sub>2</sub>O<sub>2</sub> could improve economic benefits effectively. In this study, a Fe/Ni/Pd ternary metal-doped graphitic carbon nitride (FeNi-Pd@CN) is prepared, and in situ H<sub>2</sub>O<sub>2</sub> generation using formic acid as hydrogen sources for organics removal was proved. The catalyst is advantageous, as H<sub>2</sub>O<sub>2</sub> could accumulate to 1.69 mmol/L in 150 min when pumping air rather than oxygen gases in other studies. Furthermore, 92.0% of Acid Red 73 (200 mg/L) and 93.2% of tetracycline hydrochloride (10 mg/L) could be removed in 150 min without any pH adjustment. Characterization results show that the catalyst has good stability in metal leaching and reuse tests. It is proved that •OH and •O<sub>2</sub><sup>−</sup> are the main reactive oxygen species, and a synergistic effect between Fe and Ni exists that enhances ROS generation for organics degradation. This work offers a promising method to remove refectory organic contaminants from industrial wastewater.
format	article
author	Liyan Wang Jianqing Ma Qianhui Guo Liang Liu Jiangnan Shou Aojie Sun Liaoyuan Zhao
author_facet	Liyan Wang Jianqing Ma Qianhui Guo Liang Liu Jiangnan Shou Aojie Sun Liaoyuan Zhao
author_sort	Liyan Wang
title	In Situ Generation of Hydrogen Peroxide Using Polymetallic-Doped g-C<sub>3</sub>N<sub>4</sub> for Pollutant Removal
title_short	In Situ Generation of Hydrogen Peroxide Using Polymetallic-Doped g-C<sub>3</sub>N<sub>4</sub> for Pollutant Removal
title_full	In Situ Generation of Hydrogen Peroxide Using Polymetallic-Doped g-C<sub>3</sub>N<sub>4</sub> for Pollutant Removal
title_fullStr	In Situ Generation of Hydrogen Peroxide Using Polymetallic-Doped g-C<sub>3</sub>N<sub>4</sub> for Pollutant Removal
title_full_unstemmed	In Situ Generation of Hydrogen Peroxide Using Polymetallic-Doped g-C<sub>3</sub>N<sub>4</sub> for Pollutant Removal
title_sort	in situ generation of hydrogen peroxide using polymetallic-doped g-c<sub>3</sub>n<sub>4</sub> for pollutant removal
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/701f7a3805944e8f9274c71c9381690b
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In Situ Generation of Hydrogen Peroxide Using Polymetallic-Doped g-C<sub>3</sub>N<sub>4</sub> for Pollutant Removal

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