当前位置: X-MOL 学术J. Fusion Energ. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Synthesis and adsorption properties of modified SDB carrier
Journal of Fusion Energy ( IF 1.1 ) Pub Date : 2018-11-17 , DOI: 10.1007/s10894-018-0204-z
Wenjiao Chen , Wenli Luo , Cailin Liu , Xianyan Ren , Haijun Yang

Styrene–divinylbenzene copolymer (SDB) is a key material for preparing Pt/SDB hydrophobic catalyst, which could be used for the treatment and purification of tritiated water. In this paper, a modified SDB (MSDB) carrier based on tert-butyl styrene (t-Bu-St), methyl methacrylate (MMA), styrene (St) and divinylbenzene (DVB) was prepared by aqueous suspension polymerization. Static adsorption experiment shows that the MSDB has the best adsorption performance at the molar ratio of St, DVB, t-Bu-St and MMA of 1:0.85:0.3:0.3 with n-heptane as porogen. The adsorption behavior of MSDB is analyzed by theoretical formulas. Data show that the adsorption process is in accordance with the Lagrange pseudo-first-order kinetics and Freundlich isotherm (1/n < 1), which is exothermic and entropy decrease (ΔH0 < 0, ΔS0 < 0) in a temperature range of 293.15–333.15 K.

中文翻译:

改性SDB载体的合成及吸附性能

苯乙烯-二乙烯基苯共聚物(SDB)是制备 Pt/SDB 疏水催化剂的关键材料,可用于氚化水的处理和净化。本文采用水悬浮聚合法制备了以叔丁基苯乙烯(t-Bu-St)、甲基丙烯酸甲酯(MMA)、苯乙烯(St)和二乙烯基苯(DVB)为基础的改性SDB(MSDB)载体。静态吸附实验表明,以正庚烷为致孔剂,在St、DVB、t-Bu-St和MMA的摩尔比为1:0.85:0.3:0.3时,MSDB的吸附性能最好。通过理论公式分析MSDB的吸附行为。数据表明,吸附过程符合拉格朗日准一级动力学和弗氏等温线(1/n < 1),在293℃的温度范围内为放热和熵减(ΔH0 < 0,ΔS0 < 0) .
更新日期:2018-11-17
down
wechat
bug