Novel Silica Functionalized Monosodium Glutamate/PVA Cross-Linked Membranes for Alkali Recovery by Diffusion Dialysis
نویسندگان
چکیده
In this work, two types of silica functionalized monosodium glutamate (GMSG and VMSG)/poly(vinyl alcohol) (PVA) were cross-linked by sol–gel process to prepare novel hybrid cation exchange membranes. The prepared membranes systematically characterized FTIR spectroscopy, SEM analysis, ion capacity (IEC), TGA, water uptake, swelling, mechanical strength diffusion dialysis performance for alkali separation using NaOH/Na2WO4 solution. peaks around 1260–1350 cm? 1 confirmed the secondary C–N linkages. cross-linking between GMSG/VMSG PVA was verified presence stretching Si–O–C, Si–O–Si, C–O–C –C(=O)–O–C groups 1080 1120 1. analysis dense structure uniform distribution particles in membrane. TGA results indicated that GMSG showed relatively high thermal stability as compared VMSG Water uptake degree swelling decreased while IEC values increased with increase content membrane matrix. properties improved up 40% content. NaOH coefficient (UOH) factor (S) declined Finally, effect temperature studied it found from 25 45 °C resulted decrease both crossed-linked
منابع مشابه
Adsorption Properties of Thiol-Functionalized Silica Nanoparticles Prepared for Application in Poly(ether sulfone) Nanocomposite Membranes
متن کامل
BPPO-Based Anion Exchange Membranes for Acid Recovery via Diffusion Dialysis
To reduce the environmental impact of acids present in various industrial wastes, improved and robust anion exchange membranes (AEMs) are highly desired. Moreover, they should exhibit high retention of salts, fast acid permeation and they should be able to operate with low energy input. In this work, AEMs are prepared using a facile solution-casting from brominated poly-(2,6-dimethyl-1,4-phenyl...
متن کاملFunctionalized Polymeric Membranes for CO2 Capture
Reducing CO2 emission and lowering the concentration of greenhouse gases in the atmosphere has quickly become one of the most urgent environmental issues. While a variety of technologies and methods have been developed, the separation of CO2 from gas streams is still a critical issue. Apart from establishing new techniques, the exploration of membrane materials with high separation performance ...
متن کاملUltrathin cross-linked nanoparticle membranes.
The fabrication of functional nanostructured materials for sensing, encapsulation and delivery requires practical approaches to self-assembly on multiple length scales and the synthesis of tough yet permeable structures. Here, the self-assembly of functionalized, photoluminescent nanoparticles at liquid interfaces, followed by cross-linking of the associated ligands, affords robust membranes th...
متن کاملFunctionalized Mesoporous Silica Nanoparticles as a Novel Antioxidant Delivery System
Antioxidants have an important role in control and prevention of dangerous diseases like cancers, but instability and high solubility of the antioxidants are <span style="font-size: 11pt; color: #00000...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Polymers and The Environment
سال: 2021
ISSN: ['1566-2543', '1572-8919']
DOI: https://doi.org/10.1007/s10924-021-02205-3