Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification

Degradation activity of plasma catalysis between dielectric barrier discharge (DBD) and carbon nanotubes-graphene-nickel foam (CNTs-G-Nif) has been studied in treatment of dye wastewater. CNTs-G-Nif was prepared through a two-step chemical vapor deposition (CVD) approach. The composite has been char...

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Autores principales:	Qihui Xu, Shuaikang Fang, Yin Chen, Jae Kwang Park, Chao Pan, Yongjun Shen, Na Zhu, Huifang Wu
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	cnts-g-nif combined system coupling factor dbdp catalysis reaction mechanisms Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/4e9ce043d036438bbf1802691f27df35
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spelling	oai:doaj.org-article:4e9ce043d036438bbf1802691f27df352021-11-06T11:07:46ZSynergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification0273-12231996-973210.2166/wst.2021.030https://doaj.org/article/4e9ce043d036438bbf1802691f27df352021-06-01T00:00:00Zhttp://wst.iwaponline.com/content/83/11/2762https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732Degradation activity of plasma catalysis between dielectric barrier discharge (DBD) and carbon nanotubes-graphene-nickel foam (CNTs-G-Nif) has been studied in treatment of dye wastewater. CNTs-G-Nif was prepared through a two-step chemical vapor deposition (CVD) approach. The composite has been characterized by different techniques such as X-ray diffraction (XRD), scanning electron microscope (SEM) and Raman spectroscopy. SEM results showed that the Nif as the growth substrate was evenly wrapped by G and then CNTs were successfully grown on G as the support. The growth mechanism of composite was proposed. The possible coupled catalytic mechanism between DBD and CNTs-G-Nif were addressed. In addition, the modification on G-Nif was found by SEM during the discharge process in liquid phase. And the modification mechanism of DBD plasma (DBDP) acting on composites was discussed. Finally, by means of analyses of ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS), the general degradation pathway and stepwise degradation pathways of alizarin green (AG) were proposed in detail. HIGHLIGHTS A novel degradation system DBD plasma/CNTs-G-Nif is proposed.; The new model of coupling factor is put forward to evaluate the degradation effect.; DBD plasma has modification on G-Nif in degradation of dye wastewater.; Comprehensive mechanisms of preparing,coupling,modifying and degrading are explored.;Qihui XuShuaikang FangYin ChenJae Kwang ParkChao PanYongjun ShenNa ZhuHuifang WuIWA Publishingarticlecnts-g-nifcombined systemcoupling factordbdp catalysisreaction mechanismsEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 83, Iss 11, Pp 2762-2777 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cnts-g-nif combined system coupling factor dbdp catalysis reaction mechanisms Environmental technology. Sanitary engineering TD1-1066
spellingShingle	cnts-g-nif combined system coupling factor dbdp catalysis reaction mechanisms Environmental technology. Sanitary engineering TD1-1066 Qihui Xu Shuaikang Fang Yin Chen Jae Kwang Park Chao Pan Yongjun Shen Na Zhu Huifang Wu Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification
description	Degradation activity of plasma catalysis between dielectric barrier discharge (DBD) and carbon nanotubes-graphene-nickel foam (CNTs-G-Nif) has been studied in treatment of dye wastewater. CNTs-G-Nif was prepared through a two-step chemical vapor deposition (CVD) approach. The composite has been characterized by different techniques such as X-ray diffraction (XRD), scanning electron microscope (SEM) and Raman spectroscopy. SEM results showed that the Nif as the growth substrate was evenly wrapped by G and then CNTs were successfully grown on G as the support. The growth mechanism of composite was proposed. The possible coupled catalytic mechanism between DBD and CNTs-G-Nif were addressed. In addition, the modification on G-Nif was found by SEM during the discharge process in liquid phase. And the modification mechanism of DBD plasma (DBDP) acting on composites was discussed. Finally, by means of analyses of ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS), the general degradation pathway and stepwise degradation pathways of alizarin green (AG) were proposed in detail. HIGHLIGHTS A novel degradation system DBD plasma/CNTs-G-Nif is proposed.; The new model of coupling factor is put forward to evaluate the degradation effect.; DBD plasma has modification on G-Nif in degradation of dye wastewater.; Comprehensive mechanisms of preparing,coupling,modifying and degrading are explored.;
format	article
author	Qihui Xu Shuaikang Fang Yin Chen Jae Kwang Park Chao Pan Yongjun Shen Na Zhu Huifang Wu
author_facet	Qihui Xu Shuaikang Fang Yin Chen Jae Kwang Park Chao Pan Yongjun Shen Na Zhu Huifang Wu
author_sort	Qihui Xu
title	Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification
title_short	Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification
title_full	Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification
title_fullStr	Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification
title_full_unstemmed	Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification
title_sort	synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/4e9ce043d036438bbf1802691f27df35
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Synergistic photocatalytic activity of a combination of carbon nanotubes-graphene-nickel foam nanocomposites enhanced by dielectric barrier discharge plasma technology for water purification

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