An optimal study of the preparation conditions of urea-modified titanium ore adsorbent
The four main effect production factors,doping rate,calcination temperature,soaking time and heating rate,are chose to design experiments based on the orthogonal table L9(34) to prepare urea-modified titanium ore (UTO) sorbents.And the decoloration efficiency of methyl orange is examined by using UTO as sorbents under dark-state absorption.Based on the orthogonal experiments,we obtained the optimal operating parameters:urea 8.0wt%,soaking time 3h,calcination temperature 300℃ and heating rate 10℃/min.As the preparation condition was run at the optimal conditions,the decoloration efficiency of methyl orange reached 98.1%,which was significantly better than the undoped samples.Thus,it is feasible to treat dye wastewater by these UTO sorbents.
Urea-modified titanium ore (UTO) orthogonal test decoloration efficiency methyl orange
Xue-fei LEI Xiang-xin XUE He YANG Xiao-qian XIA
Department of Materials Science and Engineering, Northeastern University at Qinnuangdao,Qinhuangdao School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China
国际会议
杭州
英文
380-383
2012-03-23（万方平台首次上网日期，不代表论文的发表时间）