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has been cited by the following article:

• TITLE: Optimization of Preparation Conditions of Modified Oyster Shell Powder/Ce-N-TiO2 by Response Surface Methodology (RSM)

  AUTHORS: Wei Zhang, Qizheng You, Jinkai Shu, Aihe Wang, Hai Lin, Xuchao Yan

  KEYWORDS: Modified Titanium Dioxide, Response Surface Methodology (RSM), Photocatalysis, Glyphosate

  JOURNAL NAME: Journal of Environmental Protection, Vol.14 No.1, January 11, 2023

  ABSTRACT: A new composite photocatalyst of modified oyster shell powder/Ce-N-TiO2 was prepared by sol-gel method. Based on single factor experiment, Ce doping rate, N doping rate and calcination temperature were taken as input variables. Based on the central composite design (BBD) response surface model, two functional relationship models between three independent variables and glyphosate removal rate were established to evaluate the influence degree of independent variables and interaction on catalyst. The significance of the model and regression coefficient was tested by variance analysis. The analysis of the obtained data showed that the degradation performance of the composite photocatalyst was significantly affected by the calcination temperature and the rate of N doping, while the rate of Ce doping had little effect; at the calcination temperature of 505.440°C, the degradation rate of glyphosate reached the maximum of 82.15% under the preparation conditions of 17.057 mol% N doping and 0.165 mol% Ce doping, respectively.