研究目的
Investigating the integration of 3D macroscopic graphene aerogel with 0D-2D AgVO3-g-C3N4 heterojunction for highly efficient photocatalytic oxidation of nitric oxide.
研究成果
The 3D porous aerogel AVO-CN-GA was prepared for degrading NO at the ppb level under visible light irradiation. The construction of the heterojunction improved the separation of electron-hole pairs, which resulted in a maximum NO degradation ratio of 65%. Introducing GO enhanced the conductivity, visible light adsorption, recyclability, and stability of the photocatalyst. Cycling tests demonstrated the stability and potential commercial application of the system.
研究不足
The study focuses on the photocatalytic removal of NO at low concentrations (600 ppb) and room temperature, which may not cover all environmental conditions. The stability and recyclability of the aerogel were verified over five cycles, but longer-term stability under various conditions was not explored.
1：Experimental Design and Method Selection:
The study involves the synthesis of a 3D macroscopic AgVO3-g-C3N4-graphene hybrid aerogel through a simple in-situ growth and boiling water bath method.
2：Sample Selection and Data Sources:
The samples include g-C3N4 nanosheets, AgVO3 quantum dots, and graphene oxide sheets.
3：List of Experimental Equipment and Materials:
Materials used include dicyandiamide, graphite power, potassium permanganate, L-ascorbic acid, metavanadate amine, and silver nitrate. Equipment includes SEM, TEM, XRD, XPS, UV-vis spectrophotometer, FTIR spectrometers, and fluorescence spectrophotometer.
4：Experimental Procedures and Operational Workflow:
The synthesis involves the in-situ growth of AgVO3 on g-C3N4, followed by the formation of a hydrogel with GO in a boiling water bath, and freeze-drying to obtain the aerogel.
5：Data Analysis Methods:
The photocatalytic performance was evaluated by measuring the NO removal efficiency under visible light irradiation.
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-
Scanning electron microscopy
Hitachi S-4700
Hitachi
Characterization of the morphology and structure of the samples
-
UV-vis spectrophotometer
CARY50
CARY
Determination of the light absorption spectra of the samples
-
Electrochemical system
CHI 660B
CHI
Performing electrochemical impedance spectroscopy and photocurrent measurements
-
Electron spin resonance spectrometer
Bruker A300EPR
Bruker
Obtaining the Electron spin resonance spectra
-
Transmission electron microscopy
Tecnai G200
Tecnai
Characterization of the morphology and structure of the samples
-
X-ray diffraction
X’ Pert-Pro MPD
X’ Pert-Pro
Analysis of the crystal phase of the products
-
X-ray photoelectron spectrometer
ESCALAB MK II
ESCALAB
Obtaining XPS spectra and valence band edges
-
Fourier transform infrared spectrometers
Nicolet 4700
Nicolet
Determination of the light absorption spectra of the samples
-
Fluorescence spectrophotometer
FLS920
FLS
Recording the photoluminescence spectra of the products
-
NOx analyzer
42i-TL
Thermo Environmental Instruments, Inc.
Monitoring the concentration of NO
-
登录查看剩余8件设备及参数对照表
查看全部
