一步合成g-C3N4@ZSM-5分子筛及其光催化性能探究

以硅藻泥为硅源合成了ZSM-5分子筛;以三聚氰胺为前驱体制备g-C3N4,将合成的分子筛(未去除模板剂)与三聚氰胺混合加热,去除模板剂的同时,合成ZSM-5分子筛@g-C3N4.分别用XRD,SEM,TEM,EDS,DTA等对样品进行表征分析,以亚甲基蓝模拟目标污染物,分别考察ZSM-5分子筛@g-C3N4投加量,亚甲...     

Simulation of CIECAM02 color appearance model based on Chinese color system

Color appearance model ( CAM) can be used to determine the required colors for reproduction across changes in cross-media. CIECAM02 color appearance model prediction is implemented by artificial neural networks in this paper,which includes forward and reversed prediction. 1333 color samples as training samples and other 1332 color samples as test samples are selected in the Chinese color system. In order to test the prediction accuracy of neural networks after simulation of CIECAM02 color appearance model,the color-difference formula can be used for the evaluation of forward and reversed models. Results have shown that BP neural-network has acceptable accuracy in simulation of CIECAM02 color appearance model for colors of Chinese color system.