A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_session39pfi7pnr7d4s6o59375ointej8r3car): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

Innovative progress in graphene derivative-based composite hybrid membranes for the removal of contaminants in wastewater: A review. | LitMetric

Innovative progress in graphene derivative-based composite hybrid membranes for the removal of contaminants in wastewater: A review.

Chemosphere

Department of Chemistry, Inha University, 100 Inharo, Incheon, 22212, South Korea. Electronic address:

Published: November 2022

AI Article Synopsis

  • Graphene derivatives, particularly graphene oxide, are emerging as promising materials for membrane separation technology, enhancing pollutant removal due to their unique properties like high oxygen functionality and nanochannel formation.
  • Recent advancements focus on developing composite hybrid membranes (GDHMs) through chemical treatment and addition of active materials, significantly improving characteristics such as permeability, stability, and antifouling compared to standard graphene oxide membranes.
  • GDHMs demonstrate high removal efficiency for various contaminants, including toxic dyes and heavy metals, and the study explores the mechanisms behind this effectiveness, while also addressing the challenges and future prospects of using GDHMs in wastewater treatment.

Article Abstract

Graphene derivatives (graphene oxide) are proved as an innovative carbon materials that are getting more attraction in membrane separation technology because of its unique properties and capability to attain layer-to-layer stacking, existence of high oxygen-based functional groups, and generation of nanochannels that successively enhance the selective pollutants removal performance. The review focused on the recent innovations in the development of graphene derivative-based composite hybrid membranes (GDHMs) for the removal of multiple contaminants from wastewater treatment. To design GDHMs, it was observed that at first GO layers undergo chemical treatments with either different polymers, plasma, or sulfonyl. After that, the chemically treated GO layers were decorated with various active functional materials (either with nanoparticles, magnetite, or nanorods, etc.). By preparing GDHMs, properties such as permeability, porosity, hydrophilicity, water flux, stability, feasibility, mechanical strength, regeneration ability, and antifouling tendency were excessively improved as compared to pristine GO membranes. Different types of novel GDHMs were able to remove toxic dyes (77-100%), heavy metals/ions (66-100%), phenols (40-100%), and pharmaceuticals (74-100%) from wastewater with high efficiency. Some of GDHMs were capable to show dual contaminant removal efficacy and antibacterial activity. In this study, it was observed that the most involved mechanisms for pollutants removal are size exclusion, transport, electrostatic interactions, adsorption, and donnan exclusion. In addition to this, interaction mechanism during membrane separation technology has also been elaborated by density functional theory. At last, in this review the discussion related to challenges, limitations, and future outlook for the applications of GDHMs has also been provided.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.chemosphere.2022.135590DOI Listing

Publication Analysis

Top Keywords

graphene derivative-based
8
derivative-based composite
8
composite hybrid
8
hybrid membranes
8
contaminants wastewater
8
membrane separation
8
separation technology
8
pollutants removal
8
gdhms
6
removal
5

Similar Publications

The applications of nanotechnology in the field of water treatment are rapidly expanding and have harvested significant attention from researchers, governments, and industries across the globe. This great interest stems from the numerous benefits, properties, and capabilities that nanotechnology offers in addressing the ever-growing challenges related to water quality, availability, and sustainability. This review paper extensively studies the applications of several nanomaterials including: graphene and its derivative-based adsorbents, CNTs, TiO NPs, ZnO NPs, Ag NPs, Fe NPs, and membrane-based nanomaterials in the purification of drinking water.

View Article and Find Full Text PDF

Graphene derivative based hydrogels in biomedical applications.

J Tissue Eng

October 2024

Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Graphene and its derivatives are widely used in tissue-engineering scaffolds, especially in the form of hydrogels. This is due to their biocompatibility, electrical conductivity, high surface area, and physicochemical versatility. They are also used in tissue engineering.

View Article and Find Full Text PDF

Graphene derivative-based ink advances inkjet printing technology for fabrication of electrochemical sensors and biosensors.

Biosens Bioelectron

July 2024

Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute (CATRIN), Palacký University Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic; IT4Innovations, VSB - Technical University of Ostrava, 17. listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic. Electronic address:

The field of biosensing would significantly benefit from a disruptive technology enabling flexible manufacturing of uniform electrodes. Inkjet printing holds promise for this, although realizing full electrode manufacturing with this technology remains challenging. We introduce a nitrogen-doped carboxylated graphene ink (NGA-ink) compatible with commercially available printing technologies.

View Article and Find Full Text PDF

Nano-carbon-reinforced polymer composites have gained much consideration in functional applications due to their attractive mechanical strength and cost-effectiveness. The surface chemistry and associated mechanical strength of carbon nanotubes (CNTs), graphene, and other carbon derivative-based nanocomposites are well understood. While CQDs are considered emerging carbon derivatives, their surface chemistry, unique physio-chemical properties, and dispersion behavior in polymers are yet to be explored.

View Article and Find Full Text PDF

Graphene-Based Hybrid Fillers for Rubber Composites.

Molecules

February 2024

State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China.

Graphene and its derivatives have been confirmed to be among the best fillers for rubber due to their excellent properties, such as high mechanical strength, improved interface interaction, and strain-induced crystallization capabilities. Graphene rubber materials can be widely used in tires, shoes, high-barrier conductive seals, electromagnetic shielding seals, shock absorbers, etc. In order to reduce the graphene loading and endow more desirable functions to rubber materials, graphene-based hybrid fillers are extensively employed, which can effectively enhance the performance of rubber composites.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!