Facile aqueous synthesis of ZnCuInS/ZnS-ZnS QDs with enhanced photoluminescence lifetime for selective detection of Cu(ii) ions
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Mgedle, Nande
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Univ Johannesburg, Dept Chem Sci, POB 17011, ZA-2028 Johannesburg, South Africa
Univ Johannesburg, Ctr Nanomat Sci Res, POB 17011, ZA-2028 Johannesburg, South AfricaUniv Johannesburg, Dept Chem Sci, POB 17011, ZA-2028 Johannesburg, South Africa
Mgedle, Nande
[1
,2
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Aladesuyi, Olanrewaju A.
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Univ Johannesburg, Dept Chem Sci, POB 17011, ZA-2028 Johannesburg, South Africa
Univ Johannesburg, Ctr Nanomat Sci Res, POB 17011, ZA-2028 Johannesburg, South AfricaUniv Johannesburg, Dept Chem Sci, POB 17011, ZA-2028 Johannesburg, South Africa
Aladesuyi, Olanrewaju A.
[1
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Lebepe, Thabang Calvin
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Univ Johannesburg, Dept Chem Sci, POB 17011, ZA-2028 Johannesburg, South Africa
Univ Johannesburg, Ctr Nanomat Sci Res, POB 17011, ZA-2028 Johannesburg, South AfricaUniv Johannesburg, Dept Chem Sci, POB 17011, ZA-2028 Johannesburg, South Africa
Lebepe, Thabang Calvin
[1
,2
]
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Ncapayi, Vuyelwa
[1
,2
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Oluwafemi, Oluwatobi Samuel
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Univ Johannesburg, Dept Chem Sci, POB 17011, ZA-2028 Johannesburg, South Africa
Univ Johannesburg, Ctr Nanomat Sci Res, POB 17011, ZA-2028 Johannesburg, South AfricaUniv Johannesburg, Dept Chem Sci, POB 17011, ZA-2028 Johannesburg, South Africa
Oluwafemi, Oluwatobi Samuel
[1
,2
]
机构:
[1] Univ Johannesburg, Dept Chem Sci, POB 17011, ZA-2028 Johannesburg, South Africa
[2] Univ Johannesburg, Ctr Nanomat Sci Res, POB 17011, ZA-2028 Johannesburg, South Africa
Quaternary quantum dots (QDs) have recently gained more attention due to their low toxicity, tunable wavelength, reduced or no blueshift emission upon overcoating, improved photoluminescence (PL) quantum yield, and PL lifetime when compared to their binary (II-VI) and ternary (I-III-VI) counterparts. In this work, the aqueous synthesis of ZnCuInS/ZnS-ZnS multi-shell quaternary QDs as a nanosensor for the selective detection of Cu2+ ions was reported. The as-synthesized QDs were spherical, with a particle diameter of 3.66 +/- 0.81 nm, and emitted in the first near-infrared window (725 nm) with an average decay PL lifetime of 43.69 ns. The X-ray diffraction analysis showed that the QDs were of the wurtzite structure, while the Fourier transform infrared spectroscopy confirmed GSH capping through the sulphur-metal bond. Furthermore, the fluorometric study shows that the developed multi-shell QDs were selective towards Cu2+ ions compared to other metal ions via fluorescence quenching with a limit of detection of 1.4 mu M, which is below the acceptable limit in drinking water.
机构:
Imam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Chem, Riyadh 11623, Saudi ArabiaImam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Chem, Riyadh 11623, Saudi Arabia
Algethami, Faisal K.
Al-Wasidi, Asma S.
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Princess Nourah Bint Abdulrahman Univ, Coll Sci, Dept Chem, POB 84428, Riyadh 11671, Saudi ArabiaImam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Chem, Riyadh 11623, Saudi Arabia
Al-Wasidi, Asma S.
Al-Farraj, Eida S.
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Imam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Chem, Riyadh 11623, Saudi ArabiaImam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Chem, Riyadh 11623, Saudi Arabia
Al-Farraj, Eida S.
Katouah, Hanadi A.
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Umm Al Qura Univ, Fac Appl Sci, Dept Chem, Mecca 21955, Saudi ArabiaImam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Chem, Riyadh 11623, Saudi Arabia
Katouah, Hanadi A.
Abdelrahman, Ehab A.
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Imam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Chem, Riyadh 11623, Saudi Arabia
Benha Univ, Fac Sci, Chem Dept, Banha 13518, EgyptImam Mohammad Ibn Saud Islamic Univ IMSIU, Coll Sci, Dept Chem, Riyadh 11623, Saudi Arabia
机构:
Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, ThailandOrganic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, Thailand
Santiwat, Thanapich
Sornkaew, Nilubon
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Chemistry Program, Department of Science, Faculty of Science and Technology, Bansomdejchaopraya Rajabhat University, Bangkok,10600, ThailandOrganic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, Thailand
Sornkaew, Nilubon
Mayurachayakul, Pipattra
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Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, ThailandOrganic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, Thailand
Mayurachayakul, Pipattra
Srikittiwanna, Kittiwat
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Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, ThailandOrganic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, Thailand
Srikittiwanna, Kittiwat
Pratumyot, Kornkanya
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Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, ThailandOrganic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, Thailand
Pratumyot, Kornkanya
Sukwattanasinitt, Mongkol
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Department of Chemistry, Faculty of Science and Nanotec-CU Center of Excellence on Food and Agriculture, Chulalongkorn University, Bangkok,10330, ThailandOrganic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, Thailand
Sukwattanasinitt, Mongkol
Niamnont, Nakorn
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Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, ThailandOrganic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok,10140, Thailand
机构:
King Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, ThailandKing Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, Thailand
Santiwat, Thanapich
Sornkaew, Nilubon
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Bansomdejchaopraya Rajabhat Univ, Fac Sci & Technol, Dept Sci, Chem Program, Bangkok 10600, ThailandKing Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, Thailand
Sornkaew, Nilubon
Mayurachayakul, Pipattra
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King Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, ThailandKing Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, Thailand
Mayurachayakul, Pipattra
Srikittiwanna, Kittiwat
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h-index: 0
机构:
King Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, ThailandKing Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, Thailand
Srikittiwanna, Kittiwat
Pratumyot, Kornkanya
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机构:
King Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, ThailandKing Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, Thailand
Pratumyot, Kornkanya
Sukwattanasinitt, Mongkol
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机构:
Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand
Chulalongkorn Univ, Nanotec CU Ctr Excellence Food & Agr, Bangkok 10330, ThailandKing Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, Thailand
Sukwattanasinitt, Mongkol
Niamnont, Nakorn
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h-index: 0
机构:
King Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, ThailandKing Mongkuts Univ Technol Thonburi, Fac Sci, Dept Chem, Organ Synth Electrochem & Nat Prod Res Unit, Bangkok 10140, Thailand