DETECTION OF 2, 4, 6-TRINITROTOLUENE BY USING MODIFIED CADMIUM TELLURIDE QUANTUM DOTS

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ZAREI A.R.; DARVISH SHAHMORADI A.; ZARE H.

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Journal: JOURNAL OF ENERGETIC MATERIALS Year:2016 | Volume:10 | Issue:4 (28) Page(s): 37-46

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Title

DETECTION OF 2, 4, 6-TRINITROTOLUENE BY USING MODIFIED CADMIUM TELLURIDE QUANTUM DOTS

Author(s)

ZAREI A.R. | DARVISH SHAHMORADI A. | ZARE H. | Issue Writer Certificate

Keywords

CDTE QUANTUM DOTSQ2

FLUORESCENCEQ2

DETECTIONQ2

2Q3

4Q3

6-TRINITROTOLUENE (TNT)Q2

THIOGLYCOLIC ACID (TGA)Q2

Abstract

The rapid and simple DETECTION of trace explosives, such as 2, 4, 6-tri nitrotoluene (TNT), is very important in countering terrorist threats and pollution of soil and goundwater. Nowadays, quantum dot (QD)-based fluorescent sensors for TNT DETECTION have attracted significant attention because of the unique features of QDs. In this paper, for the first time, a novel method using thioglycolic acid-capped CdTe QDs has been presented to assay TNT. CdTe QDs were synthesized with high quality (2.8 nm) in aqueous phase and were used as fluorescent probe for DETECTION of TNT. The response was linearly proportional to the concentration of TNT in range of 0.6 to 300 mM with a DETECTION limit of 0.037 mM. The calculated Stern–Volmer quenching constant was 1293 M1. The relative standard deviation for five replicate determinations was estimated at 3.3% for TNT with concentration of 140 mM. Studies on the selectivity of this proposed method demonstrate that only TNT can create an intense signal response (The uorescence quenching percentages obtained for each analyte were 16%, 7% and 4% for TNT, 2, 4DNT and 2NT, respectively). Therefore, the thioglycolic acid capped CdTe QDs are excellent nanomaterial for TNT DETECTION.

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APA: Copy

ZAREI, A.R., DARVISH SHAHMORADI, A., & ZARE, H.. (2016). DETECTION OF 2, 4, 6-TRINITROTOLUENE BY USING MODIFIED CADMIUM TELLURIDE QUANTUM DOTS. JOURNAL OF ENERGETIC MATERIALS, 10(4 (28)), 37-46. SID. https://sid.ir/paper/115441/en

Vancouver: Copy

ZAREI A.R., DARVISH SHAHMORADI A., ZARE H.. DETECTION OF 2, 4, 6-TRINITROTOLUENE BY USING MODIFIED CADMIUM TELLURIDE QUANTUM DOTS. JOURNAL OF ENERGETIC MATERIALS[Internet]. 2016;10(4 (28)):37-46. Available from: https://sid.ir/paper/115441/en

IEEE: Copy

A.R. ZAREI, A. DARVISH SHAHMORADI, and H. ZARE, “DETECTION OF 2, 4, 6-TRINITROTOLUENE BY USING MODIFIED CADMIUM TELLURIDE QUANTUM DOTS,” JOURNAL OF ENERGETIC MATERIALS, vol. 10, no. 4 (28), pp. 37–46, 2016, [Online]. Available: https://sid.ir/paper/115441/en

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