兰州大学机构库 >化学化工学院
Green synthesis of carbon dots functionalized silver nanoparticles for the colorimetric detection of phoxim
Zheng, MD; Wang, CG; Wang, YY; Wei, W; Ma, S; Sun, XH; He, J; He, J (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R China.
收录类别SCIE ; PUBMED
2018-08-01
发表期刊TALANTA
卷号185期号:2页码:309-315
出版者ELSEVIER
出版地AMSTERDAM
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
学科领域Chemistry
DOI10.1016/j.talanta.2018.03.066
ISSN0039-9140
文章类型Article
语种英语
WOS记录号WOS:000433656200041
PM记录号29759205
第一机构
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文献类型期刊论文
条目标识符http://ir.lzu.edu.cn/handle/262010/196904
Collection化学化工学院
通讯作者He, J (reprint author), Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R China.
Recommended Citation:
GB/T 7714
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.
APA Zheng, MD.,Wang, CG.,Wang, YY.,Wei, W.,Ma, S.,...&He, J .(2018).Green synthesis of carbon dots functionalized silver nanoparticles for the colorimetric detection of phoxim.TALANTA,185(2),309-315.
MLA Zheng, MD,et al."Green synthesis of carbon dots functionalized silver nanoparticles for the colorimetric detection of phoxim".TALANTA 185.2(2018):309-315.
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