国产精品视频一区二区三区四,亚洲av美洲av综合av,99国内精品久久久久久久,欧美电影一区二区三区电影

文獻名： Photocatalytic performance of novel chromium oxide-silicon dioxide decorated on multi-walled carbon nanotubes and graphene oxide nanocomposites: Preparation, structural, and optimization

 

作者： Muhammad  Aqeel Ashraf^a,b,e, Zhenling Liu^c,Dongfang Zheng^a, Cheng Li^a, Wan-Xi Peng^a, Ali Fakhri^d

a    School of Forestry, Henan Agricultural University, Zhengzhou, 450002, China

b    Department of Geology Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia

c    School of Management, Henan University of Technology, Zhengzhou, 450001, China

d    Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran

e    School of Environmental Studies, China University of Geosciences 430074 Wuhan, China

 

摘要：In this project, we successfully prepared Cr2O3-SiO2/graphene oxide (GO) or multi-walled carbon nanotubes (MWCNTs) by microwave/ultrasonic/hydrothermally method, aiming for the photo-degradation capture of Parathion compound from aqueous solutions. For the removal of Parathion, the photocatalysis properties is different and the apparent degradation amount sequence is SiO2?<?Cr2O3-SiO2?<?Cr2O3-SiO2/MWCNTs?<?Cr2O3-SiO2/GO nano-catalyst. Compared with bare SiO2 particles, Cr2O3-SiO2, and Cr2O3-SiO2/MWCNTs, the prepared Cr2O3-SiO2/GO exhibits the excellent photocatalytic performance for the UV light degradation of Parathion compound. The maximum photo-degradation of Parathion by Cr2O3-SiO2/GO was carried out after 60?min of contact time under UV light. The response surface method with box-behnken design was used to optimization of Parathion photo-degradation. Moreover, the good stability and convenient recycling of the prepared Cr2O3-SiO2/MWCNTs and Cr2O3-SiO2/GO nanocomposites further make it have excellent application aim in removal of organic pollution.