Enhanced photocatalytic degradation and UV protection properties of BiOCl nanosheets coating for cotton fabric

2018 ◽  
Vol 11 (03) ◽  
pp. 1850052 ◽  
Author(s):  
Jiarui Jin ◽  
Kejun Feng ◽  
Xiaohong Liu
Keyword(s):  
Photocatalytic Degradation ◽  
Cotton Fabric ◽  
Solvothermal Method ◽  
Uv Spectroscopy ◽  
Photocatalytic Property ◽  
Uv Protection ◽  
X Ray Diffraction ◽  
X Ray ◽  
Finishing Agent ◽  
Average Size

BiOCl nanosheets were prepared through a simple solvothermal method. The obtained BiOCl nanosheets were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD) and UV spectroscopy. The average size of BiOCl nanosheets was 210[Formula: see text]nm. The BiOCl nanosheets were applied as a finishing agent for cotton fabric, which can give the UV protection and photocatalytic degradation of RhB properties to cotton fabric. We made four different concentrations of finishing agents to coat the fabric by pad-dry-cure method. Furthermore, the UPF ratting and photocatalytic degradation of RhB were conducted. The finished cotton fabric exhibited excellent UV protection and photocatalytic property.

Surfactant-Free Solvothermal Synthesis, Characterization and Photocatalytic Property of Zn2SnO4 Hierarchical Architectures

2012 ◽  
Vol 174-177 ◽  
pp. 958-961
Author(s):  
Tie Kun Jia ◽  
Xiao Feng Wang ◽  
Jun Wei Zhao ◽  
Gui Hua Liao ◽  
Wei Min Wang
Keyword(s):  
Electron Microscopy ◽  
Aqueous Solution ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Photocatalytic Property ◽  
X Ray Diffraction ◽  
Forming Process ◽  
X Ray ◽  
Hierarchical Architectures ◽  
Scanning Electron

Zn2SnO4 hierarchical architectures were synthesized via a solvothermal method. The products were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results showed that the products were composed of a mass of nanoplates. The forming process of Zn2SnO4 hierarchical architectures was discussed and the proposed mechanism was put forward in this work. The photocatalytic activity of Zn2SnO4 structures was evaluated by the degradation of RhB aqueous solution and the results showed that hierarchical architectures had good photocatalytic property.

Synthesis of In2Se3/CuSe Composite Powder by Solvothermal Method

2012 ◽  
Vol 512-515 ◽  
pp. 211-214
Author(s):  
J. Gao ◽  
Z.G. Zou ◽  
F. Long ◽  
C.Y. Xie ◽  
S.S. Chi
Keyword(s):  
Atmospheric Pressure ◽  
Composite Powder ◽  
Solvothermal Method ◽  
Ammonium Bromide ◽  
Temperature Reaction ◽  
X Ray Diffraction ◽  
Composite Powders ◽  
X Ray ◽  
Average Size ◽  
Scanning Electron

The In2Se3/CuSe composite powders with the size in the range of 2-8µm for solar cell were successfully synthesized via using relatively simple solvothermal method at atmospheric pressure by the reaction between InCI3.4H2O, CuCI2.2H2O and Selenious acid and hydrazine hydrate in ethylene glycol.The influences of reaction temperature, reaction time, concentration of solution on the phase and morphology of In2Se3/CuSe composite powders were investigated. The phase and morphology of the products hSubscript textave been well studied by X-ray diffraction (XRD)and scanning electron microscope (SSubscript textEM) techniques.The study revealed that under the conditions of solvothermal method at atmospheric pressure, relative pure In2Se3 and CuSe powder were synthesized at temperatures of 160°C and 100°C respectively. The In2Se3/CuSe of irregular flake composite powders with the average size of 2-8µm had been obtained.The morphology of the products can be controlled by adding different kinds of surfactants such as PVP (Polyvinylpyrrolidone), CTAB (Hexadecyl trimethyl ammonium Bromide) and so on.

TiO2 Powder Synthesized via the Solvothermal Method and Enhanced Photocatalytic Degradation of Methomyl

2016 ◽  
Vol 872 ◽  
pp. 191-195
Author(s):  
Pongthep Jansanthea ◽  
Weerasak Chomkitichai ◽  
Jiraporn Ketwaraporn ◽  
Pusit Pookmanee ◽  
Sukon Phanichphant
Keyword(s):  
Optimum Condition ◽  
Photocatalytic Degradation ◽  
Rate Constant ◽  
Solvothermal Method ◽  
Average Particle Size ◽  
Average Particle ◽  
X Ray Diffraction ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Degradation Rate Constant

TiO2 powder was synthesized via the solvothermal method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Single phase anatase was obtained without calcination steps. The particle was irregular in shape with average particle size of 1.0 μm. The characteristic X–ray radiation of element was show titanium at 4.510 keV and 4.931 keV and oxygen at 0.523 keV. The photocatalytic degradation of methomyl in aqueous solution over TiO2 powder under UV irradiation was determined by UV-Vis spectroscopy. The influence of the amount of TiO2 powder for photocatalytic degradation of methomyl and rate constant were determined. The optimum condition for photocatalytic degradation of methomyl over TiO2 powder was obtained at 0.05 g.L-1 for the amount of TiO2 powder in 60 min. The degradation rate constant at the optimum condition was 0.0243 min-1.

Photocatalytic Degradation of Methylene Blue and Methyl Orange over TiO2 Powder Synthesized via the Solvothermal Method

2015 ◽  
Vol 749 ◽  
pp. 51-55
Author(s):  
Pongthep Jansanthea ◽  
Natkritta Boonprakob ◽  
Jaruwan Treenattip ◽  
Pusit Pookmanee ◽  
Sukon Phanichphant
Keyword(s):  
Methylene Blue ◽  
Methyl Orange ◽  
Photocatalytic Degradation ◽  
Solvothermal Method ◽  
Ammonium Hydroxide ◽  
Titanium Isopropoxide ◽  
Mixed Solution ◽  
X Ray Diffraction ◽  
Visible Spectroscopy ◽  
X Ray

Titanium dioxide (TiO2) powder was synthesized via the solvothermal method. Titanium isopropoxide (C12H28O4Ti), ammonium hydroxide (NH4OH) and nitric acid (HNO3) were used as the starting materials. The mixed solution was diluted with ethanol (C2H5OH) and heated at 100°C for 5h in a Teflon–lined stainless steel autoclave vessel. The phase transition of TiO2 powder was studied by X–ray diffraction (XRD). The morphology and chemical composition of TiO2 powder were investigated by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The photocatalytic degradation of methylene blue and methyl orange over TiO2 powder were determined using Ultraviolet–visible spectroscopy (UV–Vis).

Luminescent Properties of Gd2MoO6:Eu3+ Nanophosphor for WLEDs

2021 ◽  
Author(s):  
Yan Chen ◽  
Yuemei Lan ◽  
Dong Wang ◽  
Guoxing Zhang ◽  
Wenlong Peng ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Transmission Electron Microscope ◽  
Fluorescence Spectra ◽  
Solvothermal Method ◽  
Luminescent Properties ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron

A series of Gd2-xMoO6:xEu3+(x=0.18-0.38) nanophosphors were synthesized by the solvothermal method. The properties of this nanophosphor were characterized by x-ray diffraction (XRD), transmission electron microscope (TEM), fluorescence spectra and diffuse...

Solvothermal Synthesis of Bi2Se3 Hexagonal Nanosheet Crystals

2011 ◽  
Vol 236-238 ◽  
pp. 1712-1716 ◽  
Author(s):  
Hai Tao Liu ◽  
Jun Dai ◽  
Jia Jia Zhang ◽  
Wei Dong Xiang
Keyword(s):  
Electron Microscope ◽  
Solvothermal Synthesis ◽  
Solvothermal Method ◽  
Raw Materials ◽  
X Ray Diffraction ◽  
Uniform Size ◽  
X Ray ◽  
Selected Area Electron Diffraction ◽  
Transmission Electron ◽  
Scanning Electron

Bismuth selenide (Bi2Se3) hexagonal nanosheet crystals with uniform size were successfully prepared via a solvothermal method at 160°C for 22 h using bismuth trichloride(BiCl3) and selenium powder(Se) as raw materials, sodium bisulfite(NaHSO3) as a reducing agent, diethylene glycol(DEG) as solvent, and ammonia as pH regulator. Various techniques such as X-ray diffraction (XRD), field-emission scanning electron microscope (FESEM), high-resolution transmission electron microscope (HRTEM), and selected area electron diffraction (SAED) were used to characterize the obtained products. Results show that the as-synthesized samples are pure Bi2Se3 hexagonal nanosheet crystals. A possible growth mechanism for Bi2Se3 hexagonal nanosheet crystals is also discussed based on the experiment.

W-Doped TiO2 Preparation and Photocatalytic Degradation of Guaiacol

2014 ◽  
Vol 513-517 ◽  
pp. 33-36 ◽  
Author(s):  
Zi Chang Xie ◽  
Ying Wang ◽  
Peng Wang ◽  
Lei Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Degradation Rate ◽  
Amorphous State ◽  
X Ray Diffraction ◽  
Model Compounds ◽  
Plant Fibers ◽  
X Ray ◽  
Crystallite Structure

In this paper, W-doped TiO2 (W-TiO2) powder was prepared in hydrothermal method by mixing TiO2 and ammonium metatungstate. The catalysts were characterized by X-ray diffraction and ultraviolet spectrophotometer. The results displayed that W-TiO2 showed an anatase crystallite structure with 2 % W content. W-element in W-TiO2 was amorphous state. The guaiacol was degraded with the W-TiO2 in the visible light. It was a model compounds of lignin existed in the plant fibers. The degradation rate of guaiacol was increased with the photocatalytic time, as high as 88.21 % after 360 min irradiation. It was concluded that the W-TiO2 had an obvious photocatalytic activity under visible light. It can be used in the photocatalytic degradation of lignin.

Preparation and Photocatalytic Property of TiO2/NiFe2O4 Composite Photocatalysts

2012 ◽  
Vol 518-523 ◽  
pp. 775-779 ◽  
Author(s):  
Dong Dong Tan ◽  
De Fu Bi ◽  
Peng Hui Shi ◽  
Shi Hong Xu
Keyword(s):  
Photocatalytic Activity ◽  
Sol Gel ◽  
Photocatalytic Property ◽  
Methyl Orange Solution ◽  
X Ray Diffraction ◽  
Doping Amount ◽  
X Ray ◽  
Uv Illumination ◽  
Composite Photocatalysts ◽  
Orange Solution

The TiO2/NiFe2O4 (TN) composite nanoparticles with different mass ratios of NiFe2O4 to TiO2 were prepared via sol-gel method. X-ray diffraction was used to characterize the phase structure of TN. The results indicated that adulterating a smidgen of NiFe2O4 into the TiO2 (about 0.1%) can promote the phase transformation of TiO2, however, when the doping amount of NiFe2O4 surpasses 1%, the introduction of NiFe2O4 can inhibit the growth of TiO2 crystal grain and reduce the size of TiO2 crystal grain. The degradation experiment of methyl orange solution under UV illumination (253.7 nm) showed that the content of NiFe2O4 in the TN was higher, the photocatalytic activity of TN was worse, and the 0.1% TiO2/NiFe2O4 calcined at 400 °C presented the best photocatalytic activity.

Effect of Ce3+ Ions Doped NiFe2O4 Magnetic Nanoparticles on Photocatalytic Degradation of Rhodamine B and Antibacterial Activities

2021 ◽  
Vol 21 (11) ◽  
pp. 5784-5793
Author(s):  
K. Geetha ◽  
R. Udhayakumar
Keyword(s):  
Photocatalytic Degradation ◽  
Rhodamine B ◽  
Spinel Ferrite ◽  
Magnetic Hysteresis ◽  
Aloe Vera ◽  
Antibacterial Activities ◽  
X Ray Diffraction ◽  
X Ray ◽  
E Coli ◽  
Ferrite Structure

In this study, spinel NiCexFe2–XO4 (x = 0.0 - 0.5) nanoparticles (NPs) was synthesized by microwave combustion technique (MCT) utilizing the fuel of Aloe vera plant extract. The establishment of spinel cubic crystal structure was ensured by powder X-ray diffraction (PXRD) technique. The particles like nanostructured morphology were confirmed by high-resolution scanning electron microscope (HRSEM). Energy dispersive X-ray (EDX) studies confirmed the formation of spinel ferrite structure and ensured that no other elements were present. Magnetic parameters such as remanant magnetisation (Mr), coercivity (He) and saturation magnetization (Ms) were calculated from the magnetic hysteresis (M-H) loops, which exhibited ferromagnetic behaviour. The photocatalytic behavior was investigated by visible light treatment for the photocatalytic degradation (PCD) of rhodamine B (Rh-B) dye and the sample NiCe0.3Fe1.7O4 exhibits higher PCD efficiency (93.88%) than other compositions. The antibacterial activities of gram-positive S. aureus, B. subtilis, gramnegative K. pneumonia and E. coli have been investigated using undoped and Ce3+ substituted NiFe2O4 NPs and observed higher activity, which indicated that, they can be used in the bio-medical applications.

Effect of Yttria-Stabilized Zirconia Concentration in an Electroless Bath on Microstructure and Composition of Ni/Yttria-Stabilized Zirconia Nanocomposite

2021 ◽  
Vol 21 (11) ◽  
pp. 5592-5602
Author(s):  
Samira Almasi ◽  
Ali Mohammad Rashidi
Keyword(s):  
High Performance ◽  
Yttria Stabilized Zirconia ◽  
X Ray Diffraction ◽  
Stabilized Zirconia ◽  
Nickel Ion ◽  
Nanocomposite Particles ◽  
X Ray ◽  
Ni Content ◽  
Naoh Solution ◽  
Average Size

The effect of the yttria-stabilized zirconia (YSZ) nanoparticle loading in an electro-less bath was considered as one of the vital synthesis variables for control Ni content and microstructure of prepared nanocomposite particles, which are two crucial factors to achieving high-performance SOFC anode. Nanocomposite particles were prepared using a simple electroless method without any expensive pretreatment of sensitizing by Sn2+ ions as well as activating by Pd2+ ions that are usually used to apply nickel coating on the surface of a non-conductive substrate. The process was performed by adding YSZ nanoparticles into NaOH solution, separating them from the solution by the centrifugal method, then providing several water-based nanofluids with different concentrations of activated YSZ nanoparticles, mixing them with NiCI2 solution, followed by adding the hydrazine and then NaOH solution. X-ray diffraction and scanning electron microscopy coupled with energy dispersive X-ray analysis were used to analyze the prepared nanocomposite particles. It is observed that after adding YSZ nanoparticles into the NaOH solution, the pH of the solution varied gradually from a starting pH of 10.2 to 9. Also, by increasing the YSZ nanoparticles loading in the electroless bath from 76 mg/l to 126 mg/l, the grain size of Ni deposits, the Ni content and the average size of the prepared nanocomposite particles decreased. The electrochemical mechanism previously proposed for the nickel ion reduction was modified, and a novel analytical model was proposed for variation of the efficiency of Ni deposition with YSZ nanoparticles loading.

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