Hydrothermal Treatment of Grass: A Low‐Cost, Green Route to Nitrogen‐Doped, Carbon‐Rich, Photoluminescent Polymer Nanodots as an Effective Fluorescent Sensing Platform for Label‐Free Detection of Cu(II) Ions

Liu, Sen; Tian, Jingqi; Wang, Lei; Zhang, Yingwei; Qin, Xiaoyun; Luo, Yonglan; Asiri, Abdullah M.; Al‐Youbi, Abdulrahman O.; Sun, Xuping

doi:10.1002/adma.201200164

Cited by 1,418 publications

(877 citation statements)

References 50 publications

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“…The prepared C-dots are highly water-soluble, nano-sized and multi-colourful. However, all these above-mentioned methods suffer from more or less drawbacks such as complex and time-consuming processes, severe synthetic conditions, and high cost, which limit their wide applications [25]. Thus, a low-cost and facile synthesis of C-dots from an economical carbon source is highly desired [2,9].…”

Section: Introductionmentioning

confidence: 99%

Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source

Tan

Zhang

Tang

et al. 2013

Talanta

116

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Section: Introductionmentioning

confidence: 99%

Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source

Tan

Zhang

Tang

et al. 2013

Talanta

116

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“…Polymer carbon dots (PCDs), a new type of fluorescent carbon dots (CDs), prepared through polymerization and crosslinking between small molecules, have emerged and attracted increasing interest due to their unique structures and excellent properties including low toxicity, excitation‐dependent luminescence, low cost, chemical inertness, and excellent biocompatibility 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19. The “core–shell” structure of PCDs distinguishes them from other small molecules and carbon based fluorophores by small molecule/polymer crosslinking into the emission center and holding outer polymer chains synchronously 3, 4, 6.…”

mentioning

confidence: 99%

Full‐Color Emission Polymer Carbon Dots with Quench‐Resistant Solid‐State Fluorescence

et al. 2017

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Polymer carbon dots (PCDs) represent a new class of carbon dots (CDs) possessing sub‐fluorophores and unique polymer‐like structures. However, like small molecule dyes and traditional CDs, PCDs often suffer from self‐quenching effect in solid state, limiting their potential applications. Moreover, it is hard to prepare PCDs that have the same chemical structure, exhibiting full‐color emission under one fixed excitation wavelength by only modulating the concentration of the PCDs. Herein, self‐quenching‐resistant solid‐state fluorescent polymer carbon dots (SSFPCDs) are prepared, which exhibit strong red SSF without any other additional solid matrices, while having a large production yield (≈89%) and a considerable quantum yield of 8.50%. When dispersed in water or solid matrices in gradient concentrations, they can exhibit yellow, green, and blue fluorescence, realizing the first SSFPCDs with the same chemical structure emitting in full‐color range by changing the ratio of SSFPCDs to the solid matrices.

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“…This is because of the vital roles these materials play in different applications, such as adsorbents, catalyst supports, energy storage materials, electrode materials, and stationary phases in liquid chromatography [1,2]. As a result, a number of approaches such as pyrolysis, arc discharge, chemical vapor decomposition, and hydrothermal treatment have been used in the preparation of these carbon materials [3].…”

Section: Introductionmentioning

confidence: 99%

Chemical, structural and energy properties of hydrochars from microwave-assisted hydrothermal carbonization of glucose

Elaigwu

Greenway

2016

Int J Ind Chem

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Hydrothermal carbonization has been used as a green and effective technique for the preparation of hydrochars from simple carbohydrates, such as glucose. The chemical and structural properties of hydrochars prepared from glucose have been studied. However, the energy properties of hydrochars prepared from microwaveassisted hydrothermal carbonization of glucose have not been studied. Thus, in this study, microwave-assisted hydrothermal carbonization of glucose, and the energy properties of the prepared hydrochars are reported. The preparation involved heating glucose in de-ionized water at 200°C for 5-60 min in a microwave oven. The prepared hydrochars were characterized using scanning electron microscope, nitrogen sorption measurement, Fourier transform infrared spectroscopy, elemental (CHN) analyzer, and nuclear magnetic resonance, and their energy properties studied. The result indicated that, in comparison with previous studies using the classical hydrothermal carbonization process, this approach reduced the processing time greatly from hours to 45 min, while the increase in higher heating value of the hydrochar when compared to that of the starting material was higher in this study than some value previously reported.

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Hydrothermal Treatment of Grass: A Low‐Cost, Green Route to Nitrogen‐Doped, Carbon‐Rich, Photoluminescent Polymer Nanodots as an Effective Fluorescent Sensing Platform for Label‐Free Detection of Cu(II) Ions

Cited by 1,418 publications

References 50 publications

Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source

Enhanced photoluminescence and characterization of multicolor carbon dots using plant soot as a carbon source

Full‐Color Emission Polymer Carbon Dots with Quench‐Resistant Solid‐State Fluorescence

Chemical, structural and energy properties of hydrochars from microwave-assisted hydrothermal carbonization of glucose

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