摘要
以苯酚、甲醛为单体,聚乙烯醇为分散剂,十八醇等为致孔剂,在Na OH催化条件下,采用水相悬浮缩聚法制备了多孔酚醛(PF)树脂微球,并研究该树脂对模拟废水中Cu(Ⅱ)的吸附性能。结果表明,PF树脂微球为0.1g,Cu(Ⅱ)初始质量浓度为200 mg/L,pH=6,吸附时间为240 min时,Cu(Ⅱ)的去除率为90.67%,最大吸附量为36.27 mg/g。吸附过程符合准二级动力学模型,可用Langmuir方程描述PF树脂微球吸附Cu(Ⅱ)的过程。
Porous phenol–formaldehyde(PF) microspheres were prepared from phenol and formaldehyde by suspension polymerization in polyvinyl alcohol with octadecanol as porogenic agent and NaOH as catalyst. The adsorption of the PF resin on Cu(Ⅱ) in simulated wastewater was studied. The results showed that the removal efficiency of Cu(Ⅱ) and the maximum adsorption quantity reached 90.67% and 36.27 mg/g respectively under the following optimal conditions: PF resin microspheres 0.1 g, initial Cu(Ⅱ) mass concentration 200 mg/L, pH 6, and adsorption time 240 min. The adsorption process of PF on Cu(Ⅱ) follows the pseudo-second-order kinetics and can be well described by Langmuir model.
作者
张慕诗
ZHANG Mushi(Fujian Chuanzheng Communications Collage,Fuzhou 350001,China)
出处
《电镀与涂饰》
CAS
CSCD
北大核心
2020年第15期1027-1033,共7页
Electroplating & Finishing
基金
福建省教育厅科技项目计划(JB07030)。
关键词
酚醛树脂
多孔微球
悬浮缩聚
二价铜离子
废水处理
吸附
动力学
phenol–formaldehyde resin
porous microsphere
suspension polymerization
copper(Ⅱ) ion
wastewater treatment
adsorption
kinetics
