Pular para o conteúdo principal
  • Parceiros aprovados
  • Sobre a ELGA
    • Sobre a ELGA
    • Carreiras
    • Eventos
  • Apoio
    • Planeamento laboratorial
    • Registar um produto
    • Register Your Product (USA & Canada Only)
  • Contacto
  • U.S.A.
  • U.K.
  • Deutschland
  • España
  • France
  • Italia
  • 日本
  • 中国
Início ELGA LabWater
  • Produtos
    • PURELAB
    • CENTRA
    • MEDICA
    • BIOPURE
    • Gama completa dos produtos ELGA
  • Aplicações
    • Análise microbiológica
    • Bioquímica Clínica
    • Cromatografia gasosa
    • Cromatografia líquida
    • Eletroquímica
    • Espectrofotometria
    • Espectrometria de massa
    • Espectroscopia Atómica
    • Genética
    • Imunoquímica
    • Requisitos de água para laboratório em geral
  • Tecnologias
    • Carbono ativado
    • Eletrodeionização (EDI)
    • Filtração
    • Osmose Reversa
    • PureSure
    • Troca iónica
    • Ultravioleta
  • Impurezas na água
    • Compostos biológicos
    • Compostos inorgânicos
    • Gases dissolvidos
    • Microrganismos e bactérias
    • Partículas
  • Knowledge
    • Blogue
    • Estudos de caso
    • Água ultrapura
    • Guias e Livros brancos
  • Produtos
    • PURELAB
    • CENTRA
    • MEDICA
      • Hubgrade
      • MEDICA BIOX
    • BIOPURE
    • Gama completa dos produtos ELGA
      • PURELAB® Classic
  • Aplicações
    • Análise microbiológica
    • Bioquímica Clínica
    • Cromatografia gasosa
    • Cromatografia líquida
      • Hochleistungsflüssigkeitschromatographie (HPLC)
    • Eletroquímica
    • Espectrofotometria
    • Espectrometria de massa
    • Espectroscopia Atómica
    • Genética
    • Imunoquímica
    • Requisitos de água para laboratório em geral
  • Tecnologias
    • Carbono ativado
    • Eletrodeionização (EDI)
    • Filtração
    • Osmose Reversa
    • PureSure
    • Troca iónica
    • Ultravioleta
  • Impurezas na água
    • Compostos biológicos
    • Compostos inorgânicos
    • Gases dissolvidos
    • Microrganismos e bactérias
    • Partículas
  • Knowledge
    • Blogue
      • Analytical Chemistry
      • Clinical & Pharma
      • Cool Science
      • Environment and sustainability
      • Life in the lab
      • Purelab product design
      • Science of the future
      • Water Purity
      • Water in the lab
    • Estudos de caso
      • A Abbott Diagnostics escolhe os sistemas ELGA MEDICA no Sul da Ásia
      • Beam Me Up, Scotty: PURELAB® Option Q Delivers Essential Ultra Pure Water
      • Argenta chooses DKSH New Zealand to deliver Ultrapure water in Animal Pharma
      • Clean Water for a Clean Future
      • LS Scientific & ELGA deliver UltraPure water to the NAFDAC Laboratory
      • Lifebrain Group chooses ELGA as water partner for new modern 24/7 PCR-COVID-19 laboratory in Vienna, Austria.
      • Critital Tests Benefit from PURELAB® Option Reliable Pure Water
      • DASA: a maior empresa de diagnósticos médicos do Brasil
      • A ELGA ajuda os laboratórios de imunosserologia a maximizar o tempo de atividade
      • Fondazione Telethon Continues to Choose ELGA Labwater as a Trusted Partner
      • Importância da água ultrapura Tipo 1+ para o desenvolvimento de medicamentos genéricos
      • MEDICA® Pro selecionado para analisadores Siemens ADVIA® no City General Hospital
      • Optimale Wasserqualität für mikrobiologische Forschung und Lehre
      • PURELAB® Option R Guarantees Pure Water for Leading Microfluidics Technology
      • PURELAB® Pulse Delivers Reliable Water Quality and Quantity for a Wide Range of Applications
      • PURELAB® flex: um sistema de formação ideal para o método de investigação atual
      • Powering Cutting-Edge Gene Research
      • Sichere Reinstwasserversorgung für präzise Produkttests
      • Zentrale Reinstwasser-Aufbereitung für Analyser
      • ELGA LabWater and Beckman Coulter Join Forces
      • Applied New Technologies Department Improves ICP, IC & HPLC Sample Turnaround Times with PURELAB®
      • Desvendar os segredos da Antártida com a ajuda de água ultrapura
      • Advancing Genetic Technologies
      • Cross Infection Control: Pure and Simple
      • Researching effective new ways to prevent cardiovascular disease at the University of Columbia
    • Água ultrapura
    • Guias e Livros brancos
      • Pureza da água de HPLC
      • HPLC no setor farmacêutico
      • Redução de riscos clínicos
      • Sustentabilidade
  • U.S.A.
  • U.K.
  • Deutschland
  • España
  • France
  • Italia
  • 日本
  • 中国
  • Política de privacidade
  • Termos e condições
  • Conformidade legal global
  • Patentes
  • Impressum
  • Início
  • Filtering Out Organic Contaminants In Water Using Electrospun Biopolymer Nanofibres - Poland
Analytical Chemistry
Environment & Sustainability

Filtering Out Organic Contaminants In Water Using Electrospun Biopolymer Nanofibres - Poland

29 nov 2021
- by ELGA Editorial Team

Night panorama of Old Town in Warsaw, Poland

The production of natural nanofibres and fabrics through electrospinning has recently gained attention as it allows the creation of materials with high surface area and controllable pore structure.

Scientists at the Silesian University of Technology in Poland and the Technical University of Liberec in the Czech Republic have investigated the filtering ability of TiO2 functionalized electrospun fibres made from gum karaya (GK) and polyvinyl alcohol (PVA). The study also extended to investigating how the decomposition of TiO2 nanoparticles and methane plasma treatment could affect the characteristics of the membranes.

Electrospinning is an easy and flexible way to create non-woven fibres with a high surface area to volume ratio and a porosity that can be tuned. This makes it the technology of choice for a variety of applications, especially tissue engineering. But it’s not only the porosity of the fibres that can be customised; adding silver, gold, magnetite, zero-valent iron or other nanoparticles to an electrospun membrane can improve its characteristics. For example, TiO2 can be used to enhance the membrane’s photocatalytic and filtering properties. This improved filtering ability has potential application for the decontamination of wastewater, to remove traces of organic contaminants such as industrial chemicals, pharmaceuticals and personal care products that could possibly have a detrimental effect on human health and marine ecology. Scientists at the Faculty of Energy and Environmental Engineering at the Silesian University of Technology in Poland and the Centre for Nanomaterials, Advanced Technologies and Innovation at the Technical University of Liberec in the Czech Republic have now investigated the benefits of using TiO2 functionalized electrospun GK/PVA membranes, to remove bisphenol A and diclofenac contaminants from water.1

Sample Preparation and Analysis

GK solution, with and without TiO2, was prepared using deionised water (18.2 MΩ/cm) from an ELGA PURELAB® flex system and mixed with PVA at different ratios to find the composition that gave optimal spinnability and consistent nanofibre size. The fibres, spun using a Nanospider electrospinning machine, were treated with methane plasma while maintaining continuous gas flow through the chamber, which helped remove traces of air and moisture, and keep the pressure constant during the procedure. The finished membrane was accessed through SEM/EDX morphology and thermogravimetric analysis, in addition, water contact angle measurements were performed to determine a surface hydrophilicity or hydrophobicity and the effect of UV treatment was taken into consideration.

The Results

The SEM/EDX morphology and thermogravimetric analysis showed that TiO2 nanoparticles have successfully attached to the membrane and that only a few of them were lost during the methane plasma treatment. Addition of TiO2 improved the thermostability of the material but it was still susceptible to UV/Vis radiation and easily dissolved in water. Depositing methane plasma on the surface made the material more hydrophobic and therefore less prone to dissolve when submerged in water. In addition, after the treatment, the membrane became less vulnerable to radiation, allowing it to be recovered after use.

The study also showed that the TiO2 functionalized membrane, together with UV radiation, had a much stronger ability to filter out the contaminants – bisphenol A and diclofenac – compared to the light on its own. Furthermore, kinetics indicated that the decomposition process of these pollutants could be divided into two stages, the initial one being significantly faster than the second. 

Future Applications

The potential benefits of electrospun fibre membranes could be explored further, taking advantage of new technologies and other nanoparticles to functionalise the material, to improve the efficiency of filtering out unwanted residues in water. This would make a big difference for the health of both marine life and humans.

Why Choose ELGA LabWater in Poland?

The presence of impurities in laboratory water can be a major problem in research experiments, and can seriously compromise results. ELGA LabWater has been a trusted name in pure and ultrapure water since 1937. We believe in providing you with water purification solutions that can meet a wide range of needs and applications, backed by excellent service and support. For more information on our Type I ultrapure water systems, check out our PURELAB Quest, PURELAB Chorus 1 Complete and our PURELAB Flex models.

CONTACT OUR POLISH PARTNERS TODAY

Reference:
1  Kudlek, E et al. 2017. TiO2 immobilised on biopolymer nanofibers for the removal of bisphenol A and diclofenac from water Ecol Chem Eng 24(3):417-429.

Quest Download

PURELAB Quest

The only purifier on the market that dispenses all 3 types of science ready water from a compact, economical and easy to use system!

             Click Here To Find Out More

 

  • Enquiry
  • Obter uma cotação
  • Agende uma demonstração
  • Encontre um parceiro aprovado

Enquiry

Please check this to confirm that you have read our Terms of Service and Privacy Policy.

Obter uma cotação

Please check this to confirm that you have read our Terms of Service and Privacy Policy.

Agende uma demonstração

Please check this to confirm that you have read our Terms of Service and Privacy Policy.

Call us

Can't find what you are looking for?

Support Number
+44 (0)20 3567 7300
United Kingdom Sales
+44 (0)1628 879 704
United States of America Sales
+1 877-315-3542
France Sales
+33 1 40 83 65 00
China Sales
+86 400-616-8882

 

ELGA LabWater US Head Quarters

Lane End Business Park
Lane End, High Wycombe
HP14 3BY
Reino Unido
T: +44 (0) 203 567 7300
F: +44 (0) 203 567 7205

Sede da ELGA LabWater

Lane End Business Park
Lane End, High Wycombe
HP14 3BY
Reino Unido
T: +44 (0) 203 567 7300
F: +44 (0) 203 567 7205

Estudos de caso

  • Abbott Diagnostics
  • DASA Medical Diagnostics
  • NeoDIN Medical Institute
  • North Staffordshire NHS Trust
  • Olsberg Vocational College

Recursos

  • Saber mais sobre água ultrapura
  • Guias e Livros Brancos
  • Tecnologias de purificação
  • Aplicações
  • Impurezas na água

Blogs

  • Latest Blog
  • Water Purity - Different Types of Pure Water
  • What is Clinical Laboratory Reagent Water (CLSI)?
  • What is Total Organic Carbon (TOC)?
  • Idioma
    • Deutsch
    • English
    • Español
    • Français
    • Italiano
    • Português
    • 日本語
    • 中文
  • Outros sítios Web da Veolia
    • Veolia
    • Veolia Fondation
    • Veolia Water Technologies

© VWS (UK) Ltd. negociando como ELGA LabWater.2022-Todos os direitos reservados.
ELGA é a marca global de água para laboratórios da Veolia.

  • Política de privacidade
  • Termos e condições
  • Conformidade legal global
  • Patentes
  • Impressum
Elga Veolia
TOP

© 2017 ELGA Veolia