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兰州大学机构库  > 化学化工学院  > 期刊论文
题名: Green synthesis of carbon dots functionalized silver nanoparticles for the colorimetric detection of phoxim
作者: Zheng, MD; Wang, CG; Wang, YY; Wei, W; Ma, S; Sun, XH; He, J
收录类别: SCIE ; PUBMED
出版日期: 2018-08-01
刊名: TALANTA
卷号: 185, 期号:2, 页码:309-315
出版者: ELSEVIER
出版地: AMSTERDAM
英文摘要: In this work, Lycii Fructus as raw materials for green synthesis of fluorescent carbon dots (CDs) reduce AgNO3. The CDs-AgNPs were synthesized by one-step method. CDs were applied to stabilize AgNPs due to abundant functional groups on the surface of CDs. In presence of phoxim, the dispersed CDs-AgNPs get aggregated and the absorption peak with red shift from 400 nm to 525 rim, resulting in the color changed from yellow to red. Under optimized conditions, the absorbance ratio at A(525 nm)/A(400 nm) was related linearly to the concentrations of phoxim in the range of 0.1-100 mu M. The detection limit was calculated to 0.04 mu M, which is lower than maximum residue limits of phoxim in samples in China. The colorimetric sensor was successfully utilized to monitoring phoxim in environmental and fruit samples with good recoveries ranges from 87% to 110.0%. These results showed the sensor had a promising application prospect in real samples.
关键词: Lycii Fructus ; CDs-AgNPs ; Phoxim ; Colorimetric sensor
作者部门: [Zheng, Mingda ; Wang, Chenge ; Wang, Yingying ; Wei, Wei ; Ma, Shuang ; Sun, Xiaohan ; He, Jiang] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R China
通讯作者: He, J (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R China.
学科分类: Chemistry
文章类型: Article
语种: 英语
DOI: 10.1016/j.talanta.2018.03.066
ISSN号: 0039-9140
WOS记录号: WOS:000433656200041
PM记录号: 29759205
第一机构:
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.lzu.edu.cn/handle/262010/196904
Appears in Collections:化学化工学院_期刊论文

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Recommended Citation:
Zheng, MD,Wang, CG,Wang, YY,et al. Green synthesis of carbon dots functionalized silver nanoparticles for the colorimetric detection of phoxim[J]. TALANTA,2018,185(2):309-315.
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