Optimization of Photo-Fenton Catalyst Preparation Based Bamboo Carbon Fiber by Response Surface Methodology  

作　　者：Yizhang Wang Zhaoyang Yu Jinbo Hu Shanshan Chang Yuan Liu Ting Li Gonggang Liu Xiaodong(Alice)Wang 

机构地区：[1]College of Materials Science and Engineering,Central South University of Forestry and Technology,Changsha,410004,China [2]Hunan Taohuajiang Bamboo Science&Technology Co.,Ltd.,Yiyang,413400,China [3]Department of Wood and Forest Sciences,Laval University,Quebec,G1V 0A6,Canada

出　　处：《Journal of Renewable Materials》2023年第1期147-165,共19页可再生材料杂志（英文）

基　　金：funding from Hunan Provincial Key Research and Development Program(2020WK2018);Hunan Provincial Forestry Technological Innovation Funds(XLK202107-3);Scientific Research Project of Hunan Education Department(19A505,21B0242);National Natural Science Foundation of China(No.21908251);Hunan Provincial Natural Science Foundation of China(No.2020JJ2058).

摘　　要：In this paper,the residue from bamboo factory has been used to design photo-Fenton catalyst,which has the advantages of low cost and magnetic recycling.The photo-Fenton catalytic performance of the biocarbon-based catalyst was excellent and its optimal preparation process was also explored by response surface methodology.First,bamboo-carbon fiber was selected as the photo-Fenton catalyst carrier.Subsequently,the surface of the car-bon fiber was modified,with which dopamine,nano-Fe_(3)O_(4) and nano-TiO_(2) were successively loaded by hydro-thermal method.After the single factor tests,four factors including dopamine concentration,ferric chloride mass,P25 titanium dioxide mass and liquid-solid ratio were selected as the characteristic values.The degradation efficiency of photo-Fenton catalyst to methylene blue(MB)solution was treated as the response value.After the analysis of the response surface optimization,it was shown that the significance sequence of the selected 4 factors in terms of the MB degradation efficiency was arranged as follows:dopamine concentration>liquid-solid ratio>P25 titanium dioxide quality>ferric chloride quality.The optimal process parameters of fiber-carbon catalyst were affirmed as follows:the 1.7 mg/mL concentration of dopamine,the 1.2 g mass of ferric chloride,the 0.2 g mass of P25 titanium dioxide and the liquid-solid ratio of 170 mL/g.The experiment-measured average MB degra-dation efficiency performed by the optimized catalyst was 99.3%,which was nearly similar to the model-predicted value of 98.9%.It showed that the prediction model and response surface model were accurate and reliable.The results from response surface optimization could provide a good reference to design bamboo-based Fenton-like catalyst with excellent catalytic performance.

关 键 词：Photo-fenton catalysis bamboo fiber carbon fiber response surface optimization methylene blue 

分 类 号：O643.36[理学—物理化学]