scholarly journals Synthesis of Mn-Doped ZnSe-ZnS Alloy Quantum Dots by a Hydrothermal Method

2019 ◽  
Vol 48 (9) ◽  
pp. 1081-1083 ◽  
Author(s):  
Hisaaki Nishimura ◽  
Yuxin Lin ◽  
Masayuki Hizume ◽  
Taichi Taniguchi ◽  
Naoteru Shigekawa ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Hydrothermal Method ◽  
Alloy Quantum Dots ◽  
Mn Doped

scholarly journals Quaternary Alloy Quantum Dots as Fluorescence Probes for Total Acidity Detection of Paper-Based Relics

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1726
Author(s):  
Zhuorui Wang ◽  
Cong Cheng ◽  
Yongjuan Cheng ◽  
Lizhen Zheng ◽  
Daodao Hu
Keyword(s):  
Quantum Dots ◽  
Extraction Method ◽  
Quaternary Alloy ◽  
New Method ◽  
Fluorescence Probes ◽  
Total Acidity ◽  
Weak Acids ◽  
Paper Sample ◽  
Composition And Structure ◽  
Alloy Quantum Dots

Traditionally, the acidity of paper-based relics was determined by an extraction method and using a pH meter. This method could not obtain the total acidity of the paper-based relics because it only detected the concentration of free protons in the aqueous soaking solution. To overcome this defect, a new method for determining the total acidity of paper-based relics has been established by using quaternary alloy quantum dots. The quantum dots, CdZnSeS, modified by p-Aminothiophenol (pATP) were prepared, and their composition and structure were characterized. The fluorescence behavior of prepared quantum dots with acidity was investigated. The following results were obtained. The fluorescence of CdZnSeS-pATP quantum dots could decrease with increases in acidity because pATP dissociated from the surfaces of the quantum dots due to protons or undissociated weak acids. Based on this feature, a method for determining the acidity of paper-based relics was constructed, and this method was used to evaluate the acidity of actual paper-based relics. Obviously, for a given paper sample, since both free protons and bound protons can be determined by this method, the acidity measured by this method is more reasonable than that by pH meter.

Electrostatic repulsion strategy for highly selective and sensitive “switch–on” fluorescence sensor of ascorbic acid based on the cysteamine-coated CdTe quantum dots and cerium (IV)

2021 ◽  
Author(s):  
Yifei Guo ◽  
Jingjing Du ◽  
Jianjun Li ◽  
Ran Yang ◽  
Peter B. de Harrington ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Ascorbic Acid ◽  
Hydrothermal Method ◽  
Cadmium Chloride ◽  
Fluorescence Sensor ◽  
Cdte Quantum Dots ◽  
Electrostatic Repulsion ◽  
Functional Monomer ◽  
Simple Hydrothermal Method ◽  
Cdte Qds

In this work, cysteamine-coated CdTe quantum dots (CA-CdTe QDs) were synthesized by a simple hydrothermal method employing cadmium chloride as the cadmium source and cysteamine hydrochloride as the functional monomer....

Rapid Detection of Acrylamide in Food Using Mn-Doped ZnS Quantum Dots as a Room Temperature Phosphorescent Probe

2017 ◽  
Vol 11 (5) ◽  
pp. 1367-1373 ◽  
Author(s):  
Burak Demirhan ◽  
Buket Er Demirhan ◽  
Nusret Ertas ◽  
Hayriye Eda Satana Kara
Keyword(s):  
Quantum Dots ◽  
Rapid Detection ◽  
Room Temperature ◽  
Mn Doped

Enhancement of visible-light-driven photoresponse of Mn-doped SnO 2 quantum dots obtained by rapid and energy efficient synthesis

2018 ◽  
Vol 195 ◽  
pp. 283-289 ◽  
Author(s):  
B. Babu ◽  
A.N. Kadam ◽  
G. Thirumala Rao ◽  
Sang-Wha Lee ◽  
Chan Byon ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Visible Light ◽  
Energy Efficient ◽  
Efficient Synthesis ◽  
Visible Light Driven ◽  
Mn Doped
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