scholarly journals Economical, Green Synthesis of Fluorescent Carbon Quantum Dots from Lac Extract

2020 ◽  
Vol 5 (3) ◽  
pp. 213-217 ◽  
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Water Solubility ◽  
Low Cost ◽  
Hydrothermal Process ◽  
Synthesis Method ◽  
Photovoltaic Cell ◽  
Carbon Quantum Dots ◽  
Sensor Applications ◽  
Fluorescent Carbon

Fluorescent carbon quantum dots (FCDs) have attracted tremendous interest because of their advantageous characteristics of cost effectiveness and fluorescent nature. In this study, we developed a simple, economical and effective method for the green synthesis of fluorescent carbon quantum dots (FCDs) from Lac of Butea monosperma host tree, a renewable and sustainable resource. The synthesis method involves the low cost hydrothermal process using the Lac extract as a carbon source. The as-synthesized FCDs were characterized by Xray diffraction (XRD), Transmission electron microscopy (TEM) and Spectrofluorophotometer. The synthesized FCDs possess stable good water solubility as well as high quantum yield. The results suggest that the proposed FCDs could be utilized for photovoltaic cell, bio imaging, drug delivery and bio-sensor applications.

scholarly journals The Synthesis of Highly Fluorescent Carbon Quantum Dots from Tartaric Acid

2020 ◽  
Vol 10 (6) ◽  
pp. 7337-7342
Keyword(s):  
Quantum Dots ◽  
Tartaric Acid ◽  
Low Cost ◽  
Photovoltaic Cell ◽  
Carbon Quantum Dots ◽  
Fluorescent Properties ◽  
Tem Analysis ◽  
Transmission Electron ◽  
Bio Compatibility ◽  
Fluorescent Carbon

Carbon quantum dots (C-dots) have attracted tremendous interest because of their advantageous characteristics of cost-effectiveness and fluorescent nature. In this study, we developed a simple, economical, and effective method for the green synthesis of fluorescent carbon quantum dots using low-cost hydrothermal treatment of Tartaric acid as a carbon source. The as-synthesized C-dots were characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM), UV–Vis absorption spectroscopy, Spectrofluorophotometry, Fourier transform infrared spectroscopy (FT-IR). The synthesized C-dots possess stable fluorescent properties, good, bio-compatibility, and high quantum yield. The C-dots are highly crystalline, with longitudinal dimensions of 3.128 ± 0.17 nm. The XRD and TEM analysis indicates that the synthesized C-dots have a nearly spherical morphology and narrow size distribution. The results suggest that the proposed C-dots could be utilized for photovoltaic cell, bioimaging, drug delivery, and biosensor applications.

Green synthesis of fluorescent carbon quantum dots for the detection of mercury(ii) and glutathione

2018 ◽  
Vol 42 (8) ◽  
pp. 5814-5821 ◽  
Author(s):  
Daraksha Bano ◽  
Vijay Kumar ◽  
Vikas Kumar Singh ◽  
Syed Hadi Hasan
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Carbon Quantum Dots ◽  
First Time ◽  
Fluorescent Carbon

On–off–on detection of Hg2+ and GSH using green-synthesized CQDs from T. indica leaves for the first time.

Green Synthesis of Fluorescent Carbon Quantum Dots for Detection of Hg2+

2014 ◽  
Vol 42 (9) ◽  
pp. 1252-1258 ◽  
Author(s):  
Yue XU ◽  
Chun-Jing TANG ◽  
Hong HUANG ◽  
Chao-Qun SUN ◽  
Ya-Kun ZHANG ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Carbon Quantum Dots ◽  
Fluorescent Carbon

Green synthesis of fluorescent carbon quantum dots and carbon spheres from pericarp

2015 ◽  
Vol 58 (5) ◽  
pp. 863-870 ◽  
Author(s):  
Wei Du ◽  
Xiaoqian Xu ◽  
Han Hao ◽  
Rongmei Liu ◽  
Di Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Carbon Quantum Dots ◽  
Carbon Spheres ◽  
Fluorescent Carbon

Green synthesis of nitrogen-doped fluorescent carbon quantum dots for selective detection of iron

2017 ◽  
Vol 25 (7) ◽  
pp. 417-422 ◽  
Author(s):  
Hong-chen Tan ◽  
Wen-hua Zhao ◽  
Qi Qiu ◽  
Rui Zhang ◽  
Yang-yang Zuo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Green Synthesis ◽  
Carbon Quantum Dots ◽  
Selective Detection ◽  
Nitrogen Doped ◽  
Fluorescent Carbon

scholarly journals An Overview of the Recent Developments in Carbon Quantum Dots—Promising Nanomaterials for Metal Ion Detection and (Bio)Molecule Sensing

Chemosensors ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 138
Author(s):  
Silvija Šafranko ◽  
Dominik Goman ◽  
Anamarija Stanković ◽  
Martina Medvidović-Kosanović ◽  
Tihomir Moslavac ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Carbon Dots ◽  
Metal Ion ◽  
Water Solubility ◽  
Wide Spectrum ◽  
Low Cost ◽  
Chemical Species ◽  
Carbon Quantum Dots ◽  
Recent Developments ◽  
Metal Ion Detection

The fluorescent carbon quantum dots (CQDs) represent an emerging subset of carbonaceous nanomaterials, recently becoming a powerful tool for biosensing, bioimaging, and drug and gene delivery. In general, carbon dots are defined as zero-dimensional (0D), spherical-like nanoparticles with <10 nm in size. Their unique chemical, optical, and electronic properties make CQDs versatile materials for a wide spectrum of applications, mainly for the sensing and biomedical purposes. Due to their good biocompatibility, water solubility, and relatively facile modification, these novel materials have attracted tremendous interest in recent years, which is especially important for nanotechnology and nanoscience expertise. The preparation of the biomass-derived CQDs has attracted growing interest recently due to their low-cost, renewable, and green biomass resources, presenting also the variability of possible modification for the enhancement of CQDs’ properties. This review is primarily focused on the recent developments in carbon dots and their application in the sensing of different chemical species within the last five years. Furthermore, special emphasis has been made regarding the green approaches for obtaining CQDs and nanomaterial characterization toward better understanding the mechanisms of photoluminescent behavior and sensing performance. In addition, some of the challenges and future outlooks in CQDs research have been briefly outlined.

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