Semi-empirical study of ortho-cresol photo degradation in manganese-doped zinc oxide nanoparticles suspensions

被引:15
作者
Abdollahi, Yadollah [1 ]
Zakaria, Azmi [1 ]
Abdullah, Abdul Halim [2 ]
Masoumi, Hamid Reza Fard [2 ]
Jahangirian, Hossein [2 ]
Shameli, Kamyar [2 ]
Rezayi, Majid [5 ]
Banerjee, Santo [3 ,4 ]
Abdollahi, Tahereh [1 ]
机构
[1] Univ Putra Malaysia, Inst Adv Technol, Mat Synth & Characterizat Lab, Serdang 43400, Selangor, Malaysia
[2] Univ Putra Malaysia, Fac Sci, Dept Chem, Serdang 43400, Selangor, Malaysia
[3] Univ Putra Malaysia, Inst Math Res, Lab Cryptog Anal & Struct, Serdang 43400, Selangor, Malaysia
[4] Int Sci Assoc, Dept Complex & Network Dynam, Ankara, Turkey
[5] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Chem Sci & Food Technol, Bangi 43600, Selangor De, Malaysia
关键词
Photo degradation; Mn-doped ZnO nanoparticles; Optimization; Modeling; RSM; Simulation; ANOVA; Semi-empirical; Photo catalyst; PHOTOCATALYTIC DEGRADATION; AZO DYES; OPTIMIZATION; PHOTODEGRADATION; ZNO; DECOLORIZATION; EFFICIENCY; PHENOLS; WATER;
D O I
10.1186/1752-153X-6-88
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The optimization processes of photo degradation are complicated and expensive when it is performed with traditional methods such as one variable at a time. In this research, the condition of ortho-cresol (o-cresol) photo degradation was optimized by using a semi empirical method. First of all, the experiments were designed with four effective factors including irradiation time, pH, photo catalyst's amount, o-cresol concentration and photo degradation % as response by response surface methodology (RSM). The RSM used central composite design (CCD) method consists of 30 runs to obtain the actual responses. The actual responses were fitted with the second order algebraic polynomial equation to select a model (suggested model). The suggested model was validated by a few numbers of excellent statistical evidences in analysis of variance (ANOVA). The used evidences include high F-value (143.12), very low P-value (<0.0001), non-significant lack of fit, the determination coefficient (R-2 = 0.99) and the adequate precision (47.067). To visualize the optimum, the validated model simulated the condition of variables and response (photo degradation %) be using a few number of three dimensional plots (3D). To confirm the model, the optimums were performed in laboratory. The results of performed experiments were quite close to the predicted values. In conclusion, the study indicated that the model is successful to simulate the optimum condition of o-cresol photo degradation under visible-light irradiation by manganese doped ZnO nanoparticles.
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页数:8
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