研究目的
To determine the optimum processing parameters of photocatalytic degradation of acid red 88 (AR88) by CuFe2O4/AgBr composites using response surface methodology.
研究成果
The response surface methodology was effective to optimize the photodegradation process of AR88. The degradation rate of AR88 achieved 94.7% under optimal conditions. The degradation process conformed to pseudo-first order kinetic model, and the ·O2- and ·OH played foremost role for the photodegradation of AR88. The as-prepared CuFe2O4/AgBr composite had high stability.
研究不足
The study focuses on the optimization of photocatalytic degradation of a specific dye (acid red 88) using CuFe2O4/AgBr composites, and the findings may not be directly applicable to other dyes or photocatalytic systems without further research.
1：Experimental Design and Method Selection:
A central composite design based on the response surface methodology was applied to optimize the photocatalytic degradation process of AR88 dyes wastewater by CuFe2O4/AgBr composites.
2：Sample Selection and Data Sources:
Acid red 88 was used as a model of dye wastewater to examine the performance of photocatalysts.
3：List of Experimental Equipment and Materials:
UV-vis spectroscopy (λ=665nm), Xenon lamp source,
4：22 μm membrane filter. Experimental Procedures and Operational Workflow:
A certain amount of photocatalyst was dispersed into 50 ml of the AR88 aqueous solution. Before illumination, AR88 and photocatalyst suspension was mixed 30 min in the dark to reach adsorption equilibrium. Then the suspension was illuminated by a Xenon lamp source under the ceaseless agitation. The suspension about 5 ml was collected at fixed time and was filtrated immediately by a
5：22 μm membrane filter, finally, the residual AR88 concentration was determined. Data Analysis Methods:
The degradation rate was analyzed using Design Expert 8.0.6 software.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
