期刊论文

中文

材料导报

1005-023X

2018

32

A02

218-222

41773133:国家自然科学基金 17A028:湖南省教育厅科学研究项目 :湖南省重点学科建设项目(十二五) :湖南省高等学校科技创新团队支持计划 2015KJ23:衡阳市科学技术发展计划

本校为第一机构

以三水硝酸铜和5A分子筛为原料,采用湿法浸渍法制备了CuO-5A催化剂,采用扫描电镜、X射线衍射仪和红外光谱仪对其进行分析表征,并将其用于处理甲基橙模拟废水.考察材料种类(5A+H2O2,20 ％CuO-5A+ H2O2,H2O2)、铜负载量、pH值、催化剂投加量、温度等因素对催化效果的影响,并测定催化剂的稳定性,同时采用准一级动力学模型进行拟合分析.结果 表明,CuO已成功负载在5A分子筛表面,采用20％的CuO-5A对甲基橙的催化湿式氧化效果最好.在甲基橙初始浓度为50 mg/L、材料投加量为0.6g、pH值为2、温度为70℃条件下,第一次、第二次和第三次使用的CuO-5A在60 min时对甲基橙的转化率分别为97.9％、92.3％和90.5％...

CuO-5Acatalysts were prepared by wet impregnation method using Cu(NO3)2·3H2O and 5A molecular sieve as raw materials,and characterized by SEM,XRD and FTIR techniques,which were used to remove methyl orange from simulated wastewater.Batch experiments were conducted to investigate the effects of materials kinds(5A+H2O2,20%CuO-5A+H2O2,H2O2),copper loading,pH value,catalysts dosage and temperature on catalytic effect,and the stability of catalysts was measured.In addition,the processes of catalytic reaction were fitted by apseudo-first-order kinet...