Natural N-bearing nanoparticles in sediments of a shallow bay of the south china: A new N form in N-cycling

Nitrogen (N) in sediments plays a significant role in N-cycling in the estuarine and coastal ecosystems. However, there is only limited information available on the N-bearing nanoparticles in the shallow-marine sediments. Here, we have found that N can occur as the nanoparticle in surface sediments...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Rui Liu, Xianbiao Lin, Guoqiang Wang, Xiang Liu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	N-bearing nanoparticles Transport form of N N-cycling Shallow-marine sediment Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/4afe1d73a8554cdd947c3d7cd134f483
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:4afe1d73a8554cdd947c3d7cd134f483
record_format	dspace
spelling	oai:doaj.org-article:4afe1d73a8554cdd947c3d7cd134f4832021-12-01T04:41:31ZNatural N-bearing nanoparticles in sediments of a shallow bay of the south china: A new N form in N-cycling1470-160X10.1016/j.ecolind.2020.107281https://doaj.org/article/4afe1d73a8554cdd947c3d7cd134f4832021-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20312231https://doaj.org/toc/1470-160XNitrogen (N) in sediments plays a significant role in N-cycling in the estuarine and coastal ecosystems. However, there is only limited information available on the N-bearing nanoparticles in the shallow-marine sediments. Here, we have found that N can occur as the nanoparticle in surface sediments (0–5 cm) of a shallow bay (Zhenhai Bay) in the South China. These particles are usually 50 to 200 nm in size and contain C, N, O, Si, Fe, K, and Na in composition reveled by energy dispersive X-ray spectrometry (EDS). According to the scanning electron microscopy and high-resolution transmission electron microscopy images, these N-bearing nanoparticles exhibit rod-shape, sheet-like particle, fibrillar, and spheroidal in morphology. These findings indicate that nanoparticels could be a transport form for N, and many elements could also accompany nanoparticles during the transportation. The biophile elements (C, N and Fe) within the N-bearing nanoparticles and fibrillar morphology of these nanopartilcles indicate that they may be biogenesis, which is consistent with the characteristics of δ14N (4.51–4.64‰), and C/N (11.2–11.9) in sediments. Therefore, N-bearing nanoparticles maybe take part in the local biotic interaction. In addition, since nanoparticles do not settle out of seawater rapidly and some N-bearing nanoparticles have potential to form the solid phase, a part of N-bearing nanoparticles may separate N from the biological N-cycling. Therefore, N-bearing nanoparticles could affect the local biological N-cycling.Rui LiuXianbiao LinGuoqiang WangXiang LiuElsevierarticleN-bearing nanoparticlesTransport form of NN-cyclingShallow-marine sedimentEcologyQH540-549.5ENEcological Indicators, Vol 122, Iss , Pp 107281- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	N-bearing nanoparticles Transport form of N N-cycling Shallow-marine sediment Ecology QH540-549.5
spellingShingle	N-bearing nanoparticles Transport form of N N-cycling Shallow-marine sediment Ecology QH540-549.5 Rui Liu Xianbiao Lin Guoqiang Wang Xiang Liu Natural N-bearing nanoparticles in sediments of a shallow bay of the south china: A new N form in N-cycling
description	Nitrogen (N) in sediments plays a significant role in N-cycling in the estuarine and coastal ecosystems. However, there is only limited information available on the N-bearing nanoparticles in the shallow-marine sediments. Here, we have found that N can occur as the nanoparticle in surface sediments (0–5 cm) of a shallow bay (Zhenhai Bay) in the South China. These particles are usually 50 to 200 nm in size and contain C, N, O, Si, Fe, K, and Na in composition reveled by energy dispersive X-ray spectrometry (EDS). According to the scanning electron microscopy and high-resolution transmission electron microscopy images, these N-bearing nanoparticles exhibit rod-shape, sheet-like particle, fibrillar, and spheroidal in morphology. These findings indicate that nanoparticels could be a transport form for N, and many elements could also accompany nanoparticles during the transportation. The biophile elements (C, N and Fe) within the N-bearing nanoparticles and fibrillar morphology of these nanopartilcles indicate that they may be biogenesis, which is consistent with the characteristics of δ14N (4.51–4.64‰), and C/N (11.2–11.9) in sediments. Therefore, N-bearing nanoparticles maybe take part in the local biotic interaction. In addition, since nanoparticles do not settle out of seawater rapidly and some N-bearing nanoparticles have potential to form the solid phase, a part of N-bearing nanoparticles may separate N from the biological N-cycling. Therefore, N-bearing nanoparticles could affect the local biological N-cycling.
format	article
author	Rui Liu Xianbiao Lin Guoqiang Wang Xiang Liu
author_facet	Rui Liu Xianbiao Lin Guoqiang Wang Xiang Liu
author_sort	Rui Liu
title	Natural N-bearing nanoparticles in sediments of a shallow bay of the south china: A new N form in N-cycling
title_short	Natural N-bearing nanoparticles in sediments of a shallow bay of the south china: A new N form in N-cycling
title_full	Natural N-bearing nanoparticles in sediments of a shallow bay of the south china: A new N form in N-cycling
title_fullStr	Natural N-bearing nanoparticles in sediments of a shallow bay of the south china: A new N form in N-cycling
title_full_unstemmed	Natural N-bearing nanoparticles in sediments of a shallow bay of the south china: A new N form in N-cycling
title_sort	natural n-bearing nanoparticles in sediments of a shallow bay of the south china: a new n form in n-cycling
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/4afe1d73a8554cdd947c3d7cd134f483
work_keys_str_mv	AT ruiliu naturalnbearingnanoparticlesinsedimentsofashallowbayofthesouthchinaanewnforminncycling AT xianbiaolin naturalnbearingnanoparticlesinsedimentsofashallowbayofthesouthchinaanewnforminncycling AT guoqiangwang naturalnbearingnanoparticlesinsedimentsofashallowbayofthesouthchinaanewnforminncycling AT xiangliu naturalnbearingnanoparticlesinsedimentsofashallowbayofthesouthchinaanewnforminncycling
_version_	1718405806825668608

Natural N-bearing nanoparticles in sediments of a shallow bay of the south china: A new N form in N-cycling

Ejemplares similares