Optimization of mesoporous alumina sol‐gel synthesis by Taguchi and response surface methodology

2019 ◽  
Vol 16 (4) ◽  
pp. 1544-1556 ◽  
Author(s):  
Fatemeh Hosseinzadeh ◽  
Hossein Sarpoolaky
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Sol Gel ◽  
Mesoporous Alumina ◽  
Alumina Sol ◽  
Sol Gel Synthesis

scholarly journals Efficient Removal of Levofloxacin by Activated Persulfate with Magnetic CuFe2O4/MMT-k10 Nanocomposite: Characterization, Response Surface Methodology, and Degradation Mechanism

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3583
Author(s):  
Junying Yang ◽  
Minye Huang ◽  
Shengsen Wang ◽  
Xiaoyun Mao ◽  
Yueming Hu ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Photoelectron Spectroscopy ◽  
Degradation Mechanism ◽  
Sol Gel ◽  
Combustion Method ◽  
Copper Ferrite ◽  
X Ray ◽  
Rsm Model

In this study, a magnetic copper ferrite/montmorillonite-k10 nanocomposite (CuFe2O4/MMT-k10) was successfully fabricated by a simple sol-gel combustion method and was characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), the Brunner–Emmett–Teller (BET) method, vibrating sample magnetometer (VSM), and X-ray photoelectron spectroscopy (XPS). For levofloxacin (LVF) degradation, CuFe2O4/MMT-k10 was utilized to activate persulfate (PS). Due to the relative high adsorption capacity of CuFe2O4/MMT-k10, the adsorption feature was considered an enhancement of LVF degradation. In addition, the response surface methodology (RSM) model was established with the parameters of pH, temperature, PS dosage, and CuFe2O4/MMT-k10 dosage as the independent variables to obtain the optimal response for LVF degradation. In cycle experiments, we identified the good stability and reusability of CuFe2O4/MMT-k10. We proposed a potential mechanism of CuFe2O4/MMT-k10 activating PS through free radical quenching tests and XPS analysis. These results reveal that CuFe2O4/MMT-k10 nanocomposite could activate the persulfate, which is an efficient technique for LVF degradation in water.

scholarly journals Preparation and performance of sensing material for diethyl ether: Optimization of working conditions by response surface methodology

2020 ◽  
Author(s):  
Wenjuan Zhang ◽  
Fuxiu Yang ◽  
Hong Wang ◽  
Chunxiu Gu ◽  
Yun Lu ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Diethyl Ether ◽  
Working Conditions ◽  
Sol Gel ◽  
Optimization Method ◽  
Impregnation Method ◽  
Sensing Material ◽  
And Performance ◽  
Lower Temperature

Pd doped ZnNi3Al2O7 composite was synthesized by sol-gel and impregnation method. The EDS spectrum and TEM image showed that Pd atoms are uniformly distributed on the surface of ZnNi3Al2O7 with a particle size of less than 50 nm. A sensitive diethyl ether gas sensor based on cataluminescence on the composite at lower temperature than 200℃ was reported. There is a good linear relationship between the luminescence intensity and the concentration of diethyl ether in the range of 0.1-75 mg/m3. The detection limit (3σ) is 0.06 mg/m3. The working conditions optimized by response surface methodology were analytical wavelength of 548.86 nm, reaction temperature of 109.18℃ and carrier gas velocity of 125.88 ml/min, respectively. The sensitivity of the method can be increased by 4.5% under the optimized working conditions. The optimization method is universal for many multi parameter processes.

Green approach in the sol–gel synthesis of defect free unsupported mesoporous alumina films

2016 ◽  
Vol 224 ◽  
pp. 43-50 ◽  
Author(s):  
Gajanan B. Kunde ◽  
Ganapati D. Yadav
Keyword(s):  
Sol Gel ◽  
Mesoporous Alumina ◽  
Alumina Films ◽  
Green Approach ◽  
Sol Gel Synthesis

Optimization using response surface methodology for fast removal of hazardous azo dye by γ-Fe2O3@CuO nanohybrid synthesized by sol–gel combustion

2017 ◽  
Vol 43 (11) ◽  
pp. 6245-6257 ◽  
Author(s):  
Mostafa Hossein Beyki ◽  
Hassan Alijani ◽  
Yousef Fazli
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Azo Dye ◽  
Sol Gel ◽  
Gel Combustion ◽  
Fast Removal

Solvent influence in silica-alumina sol-gel synthesis

2000 ◽  
pp. 1085-1090 ◽  
Author(s):  
A. Carati ◽  
C. Rizzo ◽  
M. Tagliabue ◽  
C. Perego
Keyword(s):  
Sol Gel ◽  
Solvent Influence ◽  
Silica Alumina ◽  
Alumina Sol ◽  
Sol Gel Synthesis

scholarly journals Optimization of Process Parameters for Anti-Glare Spray Coating by Pressure-Feed Type Automatic Air Spray Gun Using Response Surface Methodology

2019 ◽  
Author(s):  
Yu-Hui Huang ◽  
Lung-Chuan Chen ◽  
Huann-Ming Chou
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Sol Gel ◽  
Spray Coating ◽  
Experimental Results ◽  
Air Transport ◽  
Soda Lime Glass ◽  
Market Demand ◽  
Delivery Pressure ◽  
Displacement Speed

The process of preparing anti-glare thin films by spray-coating silica sol-gel to soda-lime glass was exclusively and statistically studied in this paper. The effects of sol-gel delivery pressure, gas transport pressure, and displacement speed on the gloss, haze, arithmetic mean surface roughness (Ra) and total transmittance light (TTL) were analyzed. The experimental results indicate that the factors of sol-gel delivery pressure, air transport pressure, and displacement speed exhibits significant effect on the haze, gloss, and Ra. In contrast, the variation of TTL with these three factors are insignificant.  Because the anti-glare property is predominantly determined by low gloss and high haze, therefore, we aim to minimize gloss and maximize haze to achieve high anti-glare. Response Surface Methodology (RSM) was employed to analyze the main and interactions effect of the three factors through a quadratic polynomial equation by. The analysis of variance (ANOVA) and R2 analysis confirm the adequacy of the semi-empirical equation. The RSM predict the lowest gloss and highest haze are 9.2 GU and 59.3%, corresponding to the (sol-gel delivery pressure, air-transport pressure, displacement speed) of (250, 560, 140) and (260, 600, 20), respectively. Comparing the predicted optimal data with the real experimental results confirms the applicability of the mathematical model. The results of this study provide a crucial basis for subsequent production of anti-glare glass in response to market demand.

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