DataVXACS Applied Polymer MaterialsPaper
journal article·2024-04-26

Ultrafast Graphene Oxide-Lignin Biopolymer Nanocomposite Membranes for Separation of Biomolecules, Dyes, and Salts

Akbar Ali, Muhammad Ismail Vohra, Ahmed Nadeem, Bader S. Al-Anzi, Muzaffar Iqbal, Ayaz Ali Memon, Ashique Hussain Jatoi, Javeed Akhtar, Jun Yang, Khalid Hussain Thebo

ACS Applied Polymer Materials· Volume 6· Issue 8
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Source abstract

Abstract

Graphene oxide offers a promising opportunity to fabricate highly efficient and pressure-endurable membranes in terms of water permeability while demonstrating a high level of solute rejection. However, achieving higher permeance with an excellent separation capability is still challenging. Herein, we report a class of graphene oxide-lignin biopolymer (GOLB) membranes for the first time prepared by functionalizing GO nanosheets with lignin biopolymer extracted from plant pulp. Lignin biopolymer is the most abundant, green, low-cost, and environmentally friendly material with a variety of oxygen functional groups. The as-prepared GOLB membranes have a unique laminated structure that provides an excellent rejection (>99%) for several organic dyes, proteins, and biomolecules with variable molecular weight and exhibits ultrawater permeance ∼1300 L m –2 h –1 bar –1, more than that of reported GO-based membranes. It is interesting that due to larger interlayer spacing, such membranes show less rejection (<10%) for salts, i.e., NaCl, MgCl 2, Na 2 SO 4, etc. Furthermore, these membranes are highly stable up to 37 days in an aqueous environment and 28 days in acidic and basic solutions compared to pristine GO-based membranes.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsComposites

OpenAlex topics: Membrane Separation Technologies · Graphene research and applications · Membrane-based Ion Separation Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering (IPE), Chinese Academy of Sciences, Beijing 100F190, China

One Health Laboratory, Research and Development Karachi, Karachi 76000, Pakistan

Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia

Department of Environmental Sciences, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait

Department of Chemistry, Faculty of Physical and Applied Sciences, The University of Haripur, Haripur, Khyber Pakhtunkhwa 22620, Pakistan

National Centre of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan

Department of Chemistry, Shaheed Benazir Bhutto University, Shaheed Benazirabad 67480, Pakistan

Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

Functional Nano Materials Lab, Department of Chemistry, Mirpur University of Science and Technology (MUST), Azad Jammu and Kashmir, Mirpur 10250, Pakistan

Funding

State Key Laboratory of Multi-phase Complex Systems, Chinese Academy of Sciences · King Saud University · Beijing Municipal Natural Science Foundation · National Natural Science Foundation of China

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