Vietnam Journal of Catalysis and Adsorption
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Photocatalytic degradation of Rhodamine-B under visible light region by ZnO nanoparticles loaded on activated carbon made from longan seed biomass
Vietnam Journal of Catalysis and Adsorption - Tập 9 Số 3 - Trang 1-8 - 2021
In the present study, the synthesis of ZnO /LSAC through pyrolysis of the carbonized material prepared from longan seed, zinc acetate in alkaline medium. The obtained materials was characterized by means of XRD, SEM, TEM, BET and UV-Vis-DRS. The XRD patterns of ZnO /LSAC nanocomposites were assigned to wurtzite structure of ZnO with crystallite size about 15 to 30 nm. SEM and TEM ......
#Zinc oxide #Photodegradation #Longan seed #Biomass carbon #Rhodamine-B
Effect of iron doping concentration on the structure and photocatalytic activity of ZnO nanosheets under visible light irradiation
Vietnam Journal of Catalysis and Adsorption - 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......
#Fe-doped ZnO #nanosheets #hydrothermal synthesis #methylene blue #photodegradation
Synthesis of WO3/g-C3N4 Z-scheme heterojunction with novel photocatalytic activity for degradation of residual antibiotics in aquatic environment under visible light
Vietnam Journal of Catalysis and Adsorption - Tập 11 Số 4 - Trang 68-72 - 2022
In the research, we successfully synthesized WO 3 /g-C 3 N 4 Z-scheme heterojunction for photocatalytic degradation of tetracycline. These synthesized materials have been characterized by X-ray diffraction (XRD), Scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR Spectroscopy), to investigate their crystal phase, morphology and chemical compositions. The synthesi......
#WO3 #g-C3N4 #Photocatalytic #Heterojunction #Tetracycline
A theoretical study on the influence of non-metal (B, C, N, O, F) doping on the electronic and optical properties of graphitic carbon nitride (g-C3N4)
Vietnam Journal of Catalysis and Adsorption - - 2021
A robust and accurate tight-binding quantum chemical method (GFN2-xTB) was performed to study the electronic and optical properties of graphitic carbon nitride (g-C3N4) and g-C3N4 modified with non-metal atom (B, C, N, O, F). The vertical ionization potential, electron affinity and global electrophilicity indexes were calculated and analyzed. The obtained results show that the doping of B, C, N, ......
#g-C3N4 #non-metal #electronic structures #optical properties #GFN-xTB
Synthesis of Fe-MIL-101 material and evaluation of photocatytic activity under visible light
Vietnam Journal of Catalysis and Adsorption - Tập 7 Số 2 - Trang 49-53 - 2018
In the present work, results synthesis of Fe-MIL-101 material and evaluation of photocatytic activity under visible light. Characterization of Fe-MIL-101 was investigated by using techniques including X-ray diffraction pattern (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), IR spectra and UV-visible absorption spectrometer. Evaluation of the photocataly......
Study on adsorption of Cu(II) in aqueous solution using zeolite 3A prepared from rice husk ash
Vietnam Journal of Catalysis and Adsorption - Tập 8 Số 1 - Trang 122-128 - 2019
In the present work, 3A zeolite was formed via a process of exchanging sodium by potassium in 4A zeolite. The 3A zeolite was characterized using X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and X-ray fluorescence (XRF). The chemical composition of the obtained product was 0,60K2O.0,39Na2O.Al2O3.2,02SiO2 with high crystalline. Its particles were completed with a uniform size i......
Study on phenol adsorption onto Fe-MIL101 in aqueous solution
Vietnam Journal of Catalysis and Adsorption - Tập 7 Số 2 - Trang 54-60 - 2018
In the present work, Fe-MIL101 formed by hydrothermal synthesis with ligand of H2BDC was characterized by physico-chemical mehods including X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM) and N2 adsorption-desorption isotherm (BET). The results showed that the obtained material exhibited rather good crystallization, uniform crystals’ size and......
A study on the sorption of phenol from aqueous solution by activated red mud derived from alumina processing plant in Tanrai, Lamdong province, Vietnam
Vietnam Journal of Catalysis and Adsorption - Tập 8 Số 1 - Trang 61-68 - 2019
In the present work, red mud derived from TanRai alumina plant was acivated by HCl acid and using as effective adsorbent of phenol from aqueous sloution. The activated red mud was characterized by physico-chemical mehods including X-ray diffraction (XRD), scanning electron microscopy (SEM) and particle distribution. Phenol adsorption ability from aqueous solution onto activated red mud was investi......
Synthesis of Fe-doped TiO2 nanotubes by hydrothermal method for photodegradation of methylene blue from aqueous solutions
Vietnam Journal of Catalysis and Adsorption - Tập 11 Số 1 - Trang 29-36 - 2021
Fe-doped TiO 2 nanotubes were prepared by hydrothermal method using ferric nitrate and commercial TiO 2 powder. The obtained materials were characterized by means of XRD, TEM, BET, FT-IR and UV-Vis-DRS. The photocatalytic activity was evaluated based on photodegradation of methylene blue under visible light irradiation. The results show that Fe 3+ ions might incorporate into the lattice of TiO......
#Fe doping #TiO2 nanotubes #hydrothermal synthesis #methylene blue #photodegradation
Effect of iron doping concentration on the structure and photocatalytic activity of ZnO nanosheets under visible light irradiation
Vietnam Journal of Catalysis and Adsorption - 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 Zn 2+ , 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 h......
#Fe-doped ZnO #nanosheets #hydrothermal synthesis #methylene blue #photodegradation
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