Trace level determination of Hg2+ ions in environmental samples with a mercaptotriazole-functionalized TiO2 nanostructure-based fluorescent probe

被引：5

作者：

Akshaya, K. B. ^{[1
]}

Reenamole, G. ^{[2
]}

Sasitharan, Kezia ^{[1
]}

Vinod, T. P. ^{[1
]}

Varghese, Anitha ^{[1
]}

George, Louis ^{[1
]}

机构：

[1] CHRIST, Dept Chem, Hosur Rd, Bengaluru 560029, India

[2] Mar Thoma Coll, Dept Chem, Thiruvalla 689103, Kerala, India

来源：

ANALYTICAL METHODS | 2019年 / 11卷 / 04期

关键词：

HEAVY-METALS; COLORIMETRIC DETECTION; SURFACE MODIFICATION; SENSITIVE DETECTION; LIVING CELLS; MERCURY; WATER; SPECTROSCOPY; SENSOR; NANOPARTICLES;

D O I：

10.1039/c8ay02109k

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A highly selective and sensitive fluorescent probe for the determination of Hg2+ ions is reported using substituted mercaptotriazole functionalized TiO2 nanoparticles (MMT@TiO2). The functionalized TiO2 nanoparticles were characterized by UV-vis spectrophotometric, spectrofluorometric, FT-IR, FT-Raman, XPS, TEM, SEM, EDAX and P-XRD analyses. The interaction of Hg2+ ions with functionalized MMT@TiO2 induced aggregation of nanoparticles causing chelation enhanced fluorescence. The limit of detection and limit of quantitation for the determination of Hg2+ ions were found to be 2.18 x 10(-10) M and 6.61 x 10(-10) M, respectively. The method developed was successfully applied for the determination of Hg2+ ions in environmental samples.

引用

页码：537 / 547

页数：11

共 66 条

[1] Efficient rhodamine-thiosemicarbazide-based colorimetric/fluorescent 'turn-on' chemodosimeters for the detection of Hg2+ in aqueous samples [J].

Angupillai, Satheshkumar ;

Hwang, Ji-Yong ;

Lee, Jae-Young ;

Rao, Boddu Ananda ;

Son, Young-A. .

SENSORS AND ACTUATORS B-CHEMICAL, 2015, 214 :101-110

[2]

Balaure PC, 2017, NANOTECH AGRIFOOD, V9, P551, DOI 10.1016/B978-0-12-804300-4.00016-2

[3]

Bhagyalakshmi N, 2012, INT J CHEM PHARM SCI, V1, P287

[4] Spectroscopic determination of the structure of amorphous nitrogenated carbon films [J].

Bhattacharyya, S ;

Cardinaud, C ;

Turban, G .

JOURNAL OF APPLIED PHYSICS, 1998, 83 (08) :4491-4500

[5]

Bjerregaard P, 2015, HANDBOOK ON THE TOXICOLOGY OF METALS, VOL I & II, 4TH EDITION, P425, DOI 10.1016/B978-0-444-59453-2.00021-4

[6] Ecological effects, transport, and fate of mercury: a general review [J].

Boening, DW .

CHEMOSPHERE, 2000, 40 (12) :1335-1351

[7]

Bose S. S., 2010, SPECTROCHIM ACTA A, V779, P877

[8] X-ray photoelectron spectroscopy sulfur 2p study of organic thiol and disulfide binding interactions with gold surfaces [J].

Castner, DG ;

Hinds, K ;

Grainger, DW .

LANGMUIR, 1996, 12 (21) :5083-5086

[9] New Heterocycles from Tetrazines and Oxadiazoles [J].

Chavez, David E. ;

Parrish, Damon A. .

JOURNAL OF HETEROCYCLIC CHEMISTRY, 2009, 46 (01) :88-90

[10] Fluorescent and colorimetric sensors for environmental mercury detection [J].

Chen, Guiqiu ;

Guo, Zhi ;

Zeng, Guangming ;

Tang, Lin .

ANALYST, 2015, 140 (16) :5400-5443

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