研究目的
Investigating the synthesis of carbon quantum dots (CQDs) from lu?a sponge based activated carbon ?ber and their application in the detection of Cr(VI) ions.
研究成果
CQDs were successfully prepared from lu?a sponge based activated carbon ?ber and applied as a fluorescent probe for the detection of Cr(VI) ions. The fluorescence quenching mechanism was investigated, showing a static quenching effect.
研究不足
The CQDs prepared using LSACF still have some shortcomings, such as obvious aggregation and low quantum yield.
1：Experimental Design and Method Selection
CQDs were prepared by chemical oxidation using lu?a sponge based activated carbon ?ber as raw materials. The ?uorescence quenching effect of Cr(VI) ion on CQDs was investigated.
2：Sample Selection and Data Sources
Lu?a sponge was purchased from Luohe Huahui Daily Necessities Co., Ltd. All reagents were analytical grade.
3：List of Experimental Equipment and Materials
High-resolution transmission electron microscope (JEM-2100F), confocal microscopic Raman spectrometer (InVia), spectro?uorometer (Sigma), UV?vis spectrometer (UNICOWFUV-2), X-ray diffractometer (D8 Advance), Fourier transform infrared spectrometer (Nexus), dynamic light scattering particle size analyzers (NANOZS).
4：Experimental Procedures and Operational Workflow
Preparation of LSACF, preparation of LSACF-based CQD, calculation of quantum yield and fluorescence decay lifetime, determination of Cr(VI) using CQDs.
5：Data Analysis Methods
Fluorescence quantum yield was determined by the reference method. The exponential decay curve was fitted to calculate the fluorescence decay lifetime.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
X-ray diffractometer
D8 Advance
Bruker
XRD analysis
暂无现货
预约到货通知
-
Fourier transform infrared spectrometer
Nexus
Thermo Scientific
FTIR analysis
暂无现货
预约到货通知
-
Dynamic light scattering particle size analyzers
NANOZS
Malvern Panalytical
Particle size distribution analysis
暂无现货
预约到货通知
-
High-resolution transmission electron microscope
JEM-2100F
JEOL
Morphological characterization of CQDs
暂无现货
预约到货通知
-
Spectro?uorometer
Sigma
PerkinElmer
Photoluminescence measurements
立即获取同款设备 -
Confocal microscopic Raman spectrometer
InVia
Renishaw
Raman spectroscopy measurements
暂无现货
预约到货通知
-
UV?vis spectrometer
UNICOWFUV-2
UNICO
UV?vis absorption measurements
暂无现货
预约到货通知
-
登录查看剩余5件设备及参数对照表
查看全部
