当前位置: X-MOL 学术Iran. Polym. J. › 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.)
Rosin-derived porous microspheres with robust selective cationic dye adsorption
Iranian Polymer Journal ( IF 3.1 ) Pub Date : 2021-07-12 , DOI: 10.1007/s13726-021-00955-4
Zenghui Cheng 1, 2, 3, 4, 5 , Chunpeng Wang 1, 2, 3, 4, 5 , Meihong Liu 1, 2, 3, 4, 5 , Jifu Wang 1, 2, 3, 4, 5 , Daihui Zhang 1, 2, 3, 4, 5 , Fuxiang Chu 1, 2, 3, 4, 5 , Juan Yu 5
Affiliation  

Abstract

The utilization of rosin to fabricate functional polymers has attracted great attention due to its unique structure and property. Herein, we prepared a new type of carboxyl-containing cross-linked rosin microspheres (CCRMs) using a renewable-resource rosin as the raw material through the suspension polymerization. For comparative purpose, vanillin methacrylate (VMA), styrene (St) and isobornyl methacrylate (IBOMA) were separately used to replace DAGMA as monomer for the preparation of microspheres. Our results indicated that the obtained porous CCRMs showed a broad size distribution ranging from mesopores (3–50 nm) to macropores (> 50 nm), whereas the counterparts derived from VMA, St or IBOMA showed a powder state. Moreover, the CCRMs exhibited moderately high thermal stability. The integration of DAGMA into polymer microspheres provided CCRMs with excellent adsorption ability, which exhibited robust selective cationic dye (e.g., methylene blue (MB) and crystal violet (CV)) adsorption from waste aqueous solution. The adsorption process was fitted well with the Langmuir isotherm and the pseudo-second-order kinetic model. The maximum adsorption capacity was observed to be 602.4 mg/g for CV at 40 °C, and 512.8 mg/g for MB at 20 °C. In general, the high dye adsorption properties suggest that CCRMs may be highly efficient in adsorption selectivity for some cationic dyes.

Graphic abstract



中文翻译:

具有强选择性阳离子染料吸附的松香衍生多孔微球

摘要

利用松香制备功能性聚合物因其独特的结构和性能而备受关注。在此,我们以可再生资源松香为原料,通过悬浮聚合制备了一种新型的含羧基交联松香微球(CCRMs)。出于对比目的,分别使用甲基丙烯酸香草醛(VMA)、苯乙烯(St)和甲基丙烯酸异冰片酯(IBOMA)代替DAGMA作为制备微球的单体。我们的结果表明,所获得的多孔 CCRM 显示出从介孔(3-50 nm)到大孔(> 50 nm)的广泛尺寸分布,而来自 VMA、St 或 IBOMA 的对应物显示出粉末状态。此外,CCRM 表现出中等高的热稳定性。DAGMA 与聚合物微球的结合为 CCRMs 提供了优异的吸附能力,表现出强大的选择性阳离子染料(如亚甲蓝 (MB) 和结晶紫 (CV))从废水溶液中吸附。吸附过程符合朗缪尔等温线和准二级动力学模型。观察到 CV 在 40 °C 下的最大吸附容量为 602.4 mg/g,在 20 °C 下 MB 的最大吸附容量为 512.8 mg/g。一般而言,高染料吸附特性表明 CCRM 可能对某些阳离子染料具有高效的吸附选择性。吸附过程符合朗缪尔等温线和准二级动力学模型。观察到 CV 在 40 °C 下的最大吸附容量为 602.4 mg/g,在 20 °C 下 MB 的最大吸附容量为 512.8 mg/g。一般而言,高染料吸附特性表明 CCRM 可能对某些阳离子染料具有高效的吸附选择性。吸附过程符合朗缪尔等温线和准二级动力学模型。观察到 CV 在 40 °C 下的最大吸附容量为 602.4 mg/g,在 20 °C 下 MB 的最大吸附容量为 512.8 mg/g。一般而言,高染料吸附特性表明 CCRM 可能对某些阳离子染料具有高效的吸附选择性。

图形摘要

更新日期:2021-07-13
down
wechat
bug