Topics

Toward enhancing the separation and antifouling performance of thin-film composite nanofiltration membranes: A novel carbonate-based preoccupation strategy.

08:00 EDT 12th March 2020 | BioPortfolio

Summary of "Toward enhancing the separation and antifouling performance of thin-film composite nanofiltration membranes: A novel carbonate-based preoccupation strategy."

High-performance nanofiltration (NF) membranes with simultaneously improved antifouling and separation performance are of great significance for environmental water purification. In this work, a high-performance thin-film composite (TFC) NF membrane (TFC-Ca) was constructed through in-situ incorporation of calcium bicarbonate during interfacial reaction. The surface morphology and chemical structure of the TFC-Ca membrane were systematically investigated by FTIR, XPS, AFM, and SEM. The results indicated that the surface characteristics of the pristine NF membrane were greatly changed by the incorporation of calcium bicarbonate. The TFC-Ca membrane exhibited improved hydrophilicity, narrowed pore size, declined negative charge, and increased surface area. Compared to the control membrane, the TFC-Ca membrane possessed a much greater water permeability and higher molecule rejections. For the TFC-Ca membrane, an optimized water permeance of 13.4 ± 0.3 L m h bar with 99.9% NaSO rejection was obtained. Impressively, the TFC-Ca membrane exhibited excellent antifouling performance during 5 cycles of humic acid fouling tests. A satisfactory flux recovery up to 90.0% was achieved after physical cleaning for the optimized membrane. Furthermore, the TFC-Ca membrane also presented superior performance stability when treated with strong acid and chelating agents for 7 days. Overall, this facile preoccupation strategy via in-situ incorporation of calcium bicarbonate allows the fabrication of high-performance TFC membranes with outstanding separation and antifouling properties.

Affiliation

Journal Details

This article was published in the following journal.

Name: Journal of colloid and interface science
ISSN: 1095-7103
Pages: 155-165

Links

DeepDyve research library

PubMed Articles [11448 Associated PubMed Articles listed on BioPortfolio]

Facile Fabrication of Composite Vanadium Oxide Thin Films with Enhanced Thermochromic Properties.

In general, high-purity monoclinic VO2 (VO2(M)) was considered as a prerequisite for obtaining VO2-based thermochromic coatings with high performance. The co-existence of other vanadium oxides (such a...

Advanced Thin Film Cathodes for Lithium Ion Batteries.

Binder-free thin film cathodes have become a critical basis for advanced high-performance lithium ion batteries for lightweight device applications such as all-solid-state batteries, portable electron...

Oriented and Penetrating Zeolitic Imidazolate Framework ZIF-7 Polymer Composite Membrane with High Hydrogen Permselectivity.

Oriented and penetrating molecular sieving membranes are helpful to enhance their separation performances. Through a simple flat-scraping of polyimide (PI) solution containing highly dispersed ZIF-7(...

Pushing Rubbery Polymer Membranes to be Economic for CO2 Separation: Embedment with Ti3C2Tx MXene Nanosheets.

Sustainable and energy-efficient molecular separation require membranes with high gas permeability and selectivity. This work reports excellent CO2 separation performance of self-standing and thin-fil...

Emerging thin-film nanocomposite (TFN) membranes for reverse osmosis: A review.

Thin-film composite (TFC) membranes are the heart of reverse osmosis (RO) processes for desalination and water reuse. In recent years, nanomaterials with high permeability, selectivity and chemical re...

Clinical Trials [5115 Associated Clinical Trials listed on BioPortfolio]

A Study of Different Oral Thin Film (S)-Ketamine Formulations for Sublingual Administration in Healthy Participants

The purpose of the study in healthy participants is to characterize the plasma pharmacokinetic (PK) profile of different single dose Oral Thin Film (OTF) (S)-ketamine formulations administ...

Optical Coherence Tomography of Tear Film Dynamics In-Vivo

The purpose of this study is to evaluate a new instrument that takes digital images of tear film (a thin film that coats the eye that is made up of oil and water). The investigators are i...

Evaluation of Mepitel Film® in Preventing Epidermitis in Patients Receiving Radiation Therapy for Breast Cancer

The purpose of this research is to evaluate the use of Mepitel Film® in preventing radiation epidermitis in patients receiving radiation treatment for breast cancer. Mepitel® Film is a t...

Clinical Investigation of the F-Composite 2 System in Direct Filling Therapy

The objective of this study is to evaluate the clinical performance of the new restorative F-Composite 2 system for Class I and Class II cavities that need to be restored in permanent teet...

Clinical Performance of Two Bulk-Fill Composite of Posterior Restorations

To minimize the effects of polymerization shrinkage in the restorative treatment, there are new composites called Bulk- Fill which the companies has developed this composites for example T...

Medical and Biotech [MESH] Definitions

Use of a device (film badge) for measuring exposure of individuals to radiation. It is usually made of metal, plastic, or paper and loaded with one or more pieces of x-ray film.

The thin serous membrane enveloping the lungs (LUNG) and lining the THORACIC CAVITY. Pleura consist of two layers, the inner visceral pleura lying next to the pulmonary parenchyma and the outer parietal pleura. Between the two layers is the PLEURAL CAVITY which contains a thin film of liquid.

A film base coated with an emulsion designed for use with x-rays.

Agents that improve the ability to carry out activities such as athletics, mental endurance, work, and resistance to stress. The substances can include PRESCRIPTION DRUGS; DIETARY SUPPLEMENTS; phytochemicals; and ILLICIT DRUGS.

The measurement of radiation by photography, as in x-ray film and film badge, by Geiger-Mueller tube, and by SCINTILLATION COUNTING.

Quick Search


DeepDyve research library

Relevant Topic

Nutrition
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...


Searches Linking to this Article