Recyclable Magnetic Mesoporous Nanocomposite with Improved Sensing Performance toward Nitrite

Yihe Zhang; Zisheng Su; Bin Li; Liming Zhang; Di Fan; Heping Ma

doi:10.1021/acsami.6b02133

Recyclable Magnetic Mesoporous Nanocomposite with Improved Sensing Performance toward Nitrite

Yihe Zhang
, Zisheng Su
, Bin Li
, Liming Zhang
, Di Fan
, Heping Ma

Research output: Contribution to journal › Article › peer-review

46 Scopus citations

Abstract

A magnetic nanomaterial for nitrite ion detection was demonstrated in the present study. This nanomaterial was prepared by grafting a rhodamine 6G derivative (denoted as Rh 6G-OH) into the channels of core-shell magnetic mesoporous silica nanospheres. The nanocomposite (denoted as Fe₃O₄@Rh 6G) showed large surface area and improved fluorescent performance to accumulate and recognize NO₂^-, and its superparamagnetic behavior played an important role in reusability. The fluorescent intensity decreased linearly along with the NO₂^- concentration in the range of 1-50 μM, and the detection limit was estimated to be 0.8 μM, which was much lower than the maximum limit of nitrite ion in drinking water (65 μM) recommended by World Health Organization. Importantly, Fe₃O₄@Rh 6G could be magnetically collected and effectively reutilized after six test cycles.

Original language	English
Pages (from-to)	12344-12351
Number of pages	8
Journal	ACS Applied Materials and Interfaces
Volume	8
Issue number	19
DOIs	https://doi.org/10.1021/acsami.6b02133
State	Published - 18 May 2016
Externally published	Yes

Keywords

NO sensing
fluorescence
magnetism
nanocomposite
reutilization
rhodamine derivative

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10.1021/acsami.6b02133

Cite this

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title = "Recyclable Magnetic Mesoporous Nanocomposite with Improved Sensing Performance toward Nitrite",

abstract = "A magnetic nanomaterial for nitrite ion detection was demonstrated in the present study. This nanomaterial was prepared by grafting a rhodamine 6G derivative (denoted as Rh 6G-OH) into the channels of core-shell magnetic mesoporous silica nanospheres. The nanocomposite (denoted as Fe3O4@Rh 6G) showed large surface area and improved fluorescent performance to accumulate and recognize NO2-, and its superparamagnetic behavior played an important role in reusability. The fluorescent intensity decreased linearly along with the NO2- concentration in the range of 1-50 μM, and the detection limit was estimated to be 0.8 μM, which was much lower than the maximum limit of nitrite ion in drinking water (65 μM) recommended by World Health Organization. Importantly, Fe3O4@Rh 6G could be magnetically collected and effectively reutilized after six test cycles.",

keywords = "NO sensing, fluorescence, magnetism, nanocomposite, reutilization, rhodamine derivative",

author = "Yihe Zhang and Zisheng Su and Bin Li and Liming Zhang and Di Fan and Heping Ma",

note = "Publisher Copyright: {\textcopyright} 2016 American Chemical Society.",

year = "2016",

month = may,

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doi = "10.1021/acsami.6b02133",

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volume = "8",

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T1 - Recyclable Magnetic Mesoporous Nanocomposite with Improved Sensing Performance toward Nitrite

AU - Zhang, Yihe

AU - Su, Zisheng

AU - Li, Bin

AU - Zhang, Liming

AU - Fan, Di

AU - Ma, Heping

PY - 2016/5/18

Y1 - 2016/5/18

N2 - A magnetic nanomaterial for nitrite ion detection was demonstrated in the present study. This nanomaterial was prepared by grafting a rhodamine 6G derivative (denoted as Rh 6G-OH) into the channels of core-shell magnetic mesoporous silica nanospheres. The nanocomposite (denoted as Fe3O4@Rh 6G) showed large surface area and improved fluorescent performance to accumulate and recognize NO2-, and its superparamagnetic behavior played an important role in reusability. The fluorescent intensity decreased linearly along with the NO2- concentration in the range of 1-50 μM, and the detection limit was estimated to be 0.8 μM, which was much lower than the maximum limit of nitrite ion in drinking water (65 μM) recommended by World Health Organization. Importantly, Fe3O4@Rh 6G could be magnetically collected and effectively reutilized after six test cycles.

AB - A magnetic nanomaterial for nitrite ion detection was demonstrated in the present study. This nanomaterial was prepared by grafting a rhodamine 6G derivative (denoted as Rh 6G-OH) into the channels of core-shell magnetic mesoporous silica nanospheres. The nanocomposite (denoted as Fe3O4@Rh 6G) showed large surface area and improved fluorescent performance to accumulate and recognize NO2-, and its superparamagnetic behavior played an important role in reusability. The fluorescent intensity decreased linearly along with the NO2- concentration in the range of 1-50 μM, and the detection limit was estimated to be 0.8 μM, which was much lower than the maximum limit of nitrite ion in drinking water (65 μM) recommended by World Health Organization. Importantly, Fe3O4@Rh 6G could be magnetically collected and effectively reutilized after six test cycles.

KW - NO sensing

KW - fluorescence

KW - magnetism

KW - nanocomposite

KW - reutilization

KW - rhodamine derivative

UR - https://www.scopus.com/pages/publications/84971277757

U2 - 10.1021/acsami.6b02133

DO - 10.1021/acsami.6b02133

M3 - 文章

AN - SCOPUS:84971277757

SN - 1944-8244

VL - 8

SP - 12344

EP - 12351

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 19

ER -

Recyclable Magnetic Mesoporous Nanocomposite with Improved Sensing Performance toward Nitrite

Abstract

Keywords

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