Vietnam Journal of Catalysis and Adsorption
0866-7411
Cơ quản chủ quản: N/A
Các bài báo tiêu biểu
Effect of hexamethylene tetramine (HMTA) surfactant on the structural characteristics and photocatalytic activity of Cu-ZnO nanoparticle materials fabricated by the hydrothermal method
Tập 10 Số 3 - Trang 34-39 - 2021
The experiment had fabricated and studied the properties of ZnO and Cu doped ZnO
nanoparticles with the change of the hexamethylene tetramine surfactant content
(HMTA) with molar ratio Zn2 +: HMTA = 1: x; x = 1, 2 and 4. The methods were
used to study the characteristics of materials such as: XRD, raman shift, SEM,
reflection spectrum. The results show that, when the content of surfactant HMTA
inc...
#ZnO nanomaterials #Cu doped ZnO #photocatalysts #HMTA #ultraviolet irradiation
Synthesis of Cu2O and Cu2O-C3N4 nanomaterials for the photodegradation of organic dyes under visible light irradiation
Tập 10 Số 3 - Trang 65-70 - 2021
These experiment fabricated C3N4 powdermaterials by the calcinational method and
fabricated Cu2O, Cu2O-3%C3N4, Cu2O-5%C3N4 nanomaterials by the hydrothermal
method. The powdermaterials characteristics were studied by methods such as:
X-ray diffraction (XRD); raman shift; scanning electron microscope (SEM); UV-vis
solid absorption spectra. The photocatalytic activity of samples was studied by
decom...
#Cu2O #C3N4 #octahedral Cu2O-C3N4 crystals #photocatalysts #visible light irradiation
Nickel nanoparticles supported on titanium oxides nanotubes as an efficient catalyst for hydrodechlorination of 3-chlorophenol
Tập 10 Số 4 - Trang 120-124 - 2021
Titanium oxides nanotubes (TNTs) were prepared by hydrothermal method and used
as nano-support for nickel nanoparticles. Indeed, nickel nanoparticles supported
TNTs (Ni-TNTs) were in situ synthesized from nickel salt and TNTs by chemical
reduction method using sodium borohydride (NaBH4) as reducing agent. The
physio-chemical properties of Ni-TNTs nano-catalysts were fully characterized
such as Tra...
#Hydrodechlorination #nanocatalyst #nickel nanoparticles #titanium oxides nanotubes
In-vitro antifungal activities of silver-copper complex/chitosan (Ag-Cu@CS) nanoparticles synthesized by in-situ encapsulation
Tập 10 Số 1S - Trang 24-30 - 2021
In this study, silver-copper complex/chitosan (Ag-Cu@CS) nanoparticles were
successfully synthesized by in-situ encapsulation reduction method. The results
show that as-synthesized nanoparticles were quasi spherical in shape with the
average diameter of 7.97 nm, well-dispersed particles in water and stable. The
test phytopathogenic fungi Sclerotium rolfsii, Magnaporthe oryzae K, Botrytis
cinerea, ...
#silver-copper complex/chitosan #in-situ encapsulation #plant protection
Practical Copper-catalyzed Synthesis of Pyrroles under Solvent Free Condition
Tập 11 Số 3 - Trang 54-58 - 2022
An efficient and practical method for the synthesis of pyrroles by Cu-catalyzed
multicomponent reaction has been described. A range of highly functionalized
pyrroles was prepared in good yields under solvent free condition.
#Cu catalysis #Pyrrole synthesis #N-heterocyclic carbene #Multicomponent reaction #Sustainable process
Effect of hexamethylene tetramine (HMTA) surfactant on the structural characteristics and photocatalytic activity of Cu-ZnO nanoparticle materials fabricated by the hydrothermal method
- 2021
The experiment had fabricated and studied the properties of ZnO and Cu doped ZnO
nanoparticles with the change of the hexamethylene tetramine surfactant content
(HMTA) with molar ratio Zn 2 + : HMTA = 1: x; x = 1, 2 and 4. The methods were
used to study the characteristics of materials such as: XRD, raman shift, SEM,
reflection spectrum. The results show that, when the content of surfactant HMTA
i...
#ZnO nanomaterials #Cu doped ZnO #photocatalysts #HMTA #ultraviolet irradiation
Study on the synthesis of heterostructure MoS2/TiO2 material for photocatalytic degradation of 2,4-dichlorophenoxyacetic acid
Tập 10 Số 3 - Trang 113-120 - 2021
Nanoflower MoS2, nanowire TiO2(NNW) and 3D MoS2/TiO2 nano-heterostructure have
been synthesized successfully by simple typical hydrothermal reaction method
followed by 200oC calcination under an argon atmosphere. The prepared samples
are characterized in detail by XRD, FESEM, UV-vis DRS, EDX and BET. The results
suggest that the TiO2 NNW is successfully coupled with MoS2 to form the
heterojunction...
#2 #4-D #heterostructure #nanoflower MoS2 #nanowire TiO2
Synthesis of Mo-Modified TiO2 Material with Enhanced Photocatalytic activity
Tập 10 Số 1S - Trang 56-62 - 2021
The Mo-modified TiO2 was synthesized via facile impregnation combined with
pyrolysis of mixtures in several different initial mass ratios of precursors as
mTi(OH)4/m(NH4)6Mo7O24.4H2O equaling 5, 10 and 15 in 500 oC for an hour. The
as-prepared samples, denoted as n-MT-500 within n for the initial mass ratio of
precursors, were characterized by X-ray diffraction, scanning electron
microscopy, ultra...
#TiO2 #MoO3 #photocatalyst #Ilmenite #modified-TiO2
Effect of iron doping concentration on the structure and photocatalytic activity of ZnO nanosheets under visible light irradiation
Tập 11 Số 2 - Trang 8-15 - 2022
Undoped and Fe-doped ZnO nanosheets have been successfully synthesized by
hydrothermal method using zinc acetate as the source of Zn2+, iron(III) nitrate
as the doping source, urea as media to control the solution pH and polyethylene
glycol as structure-directing agents. The obtained materials were characterized
by means of XRD, TEM, BET, FT-IR and UV-Vis-DRS. The results show that ZnO has a
hexa...
#Fe-doped ZnO #nanosheets #hydrothermal synthesis #methylene blue #photodegradation
Degradation of recalcitrant organic pollutants by modified TiO2 photocatalysts
Tập 11 Số 2 - Trang 98-102 - 2022
Non-metallic C, N, and S doped TiO 2 materials were prepared using the
hydrothermal method from titanyl sulfate solution with different doped
precursors. The influence of non-metallic elements on crystal structure,
morphology, surface area, bonding state, and light absorption ability of
materials was studied through XRD, SEM, BET spectra, and UVis - DRS. The
formation of new Ti-O-C, O-N-Ti bonds, ...
#Photocatalyst TiO2 #a doped #tetracycline antibiotics #ilmenite