EN 17120:2019
(Main)Photocatalysis - Water purification - Performance of photocatalytic materials by measurement of phenol degradation
Photocatalysis - Water purification - Performance of photocatalytic materials by measurement of phenol degradation
This document describes a test method to evaluate the performance of photocatalytic materials in water purification by measuring phenol degradation. This test method is applicable to photocatalytic materials in form of powders (suspensions in water, slurries) under UV irradiation. The photocatalytic performance of the tested material is assessed by the observed rate of phenol degradation at specified experimental conditions as determined by HPLC.
Photokatalyse - Wasserreinigung - Leistungsbewertung von photokatalytischen Werkstoffen durch Messung des Phenolabbaus
Dieses Dokument beschreibt ein Prüfverfahren zur Leistungsbewertung photokatalytischer Werkstoffe bei der Wasserreinigung durch Messung des Phenolabbaus. Das Prüfverfahren findet Anwendung bei photokatalytischen Werkstoffen in Form von Pulvern (Suspensionen in Wasser, Schlämme) bei UV Einstrahlung. Die photokatalytische Leistung des geprüften Werkstoffes wird durch die beobachtete Phenolabbaugeschwindigkeit unter festgelegten Versuchsbedingungen mittels HPLC beurteilt.
Photocatalyse - Purification de l'eau - Évaluation des performances des matériaux photocatalytiques par mesurage de la dégradation du phénol
Le présent document décrit une méthode d'essai permettant d’évaluer les performances des matériaux photocatalytiques dans le processus de purification de l'eau par mesurage de la dégradation du phénol. Cette méthode d'essai est applicable aux matériaux photocatalytiques sous forme de poudres (suspensions aqueuses, suspensions épaisses) soumis à une irradiation UV. La performance photocatalytique du matériau soumis à essai est évaluée par détermination en chromatographie en phase liquide à haute performance (CLHP) du taux de dégradation du phénol dans des conditions expérimentales spécifiées.
Fotokataliza - Čiščenje vode - Ugotavljanje zmogljivosti fotokatalitičnih materialov z merjenjem razgradnje fenola
Ta evropski standard opisuje preskusno metodo za ocenjevanje zmogljivosti fotokatalitičnih materialov pri čiščenju vode z merjenjem razgradnje fenola. Ta preskusna metoda se uporablja pri fotokatalitičnih materialih v obliki praškov (suspenzije v vodi, brozge), ki so obsevani z ultravijolično svetlobo. Fotokatalitična zmogljivost preskušenega materiala se oceni na podlagi ugotovljene stopnje degradacije pod določenimi preskusnimi pogoji, kot odloča HPLC.
General Information
- Status
- Published
- Publication Date
- 19-Feb-2019
- Withdrawal Date
- 30-Aug-2019
- Technical Committee
- CEN/TC 386 - Photocatalysis
- Drafting Committee
- CEN/TC 386/WG 3 - Water purification
- Current Stage
- 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
- Start Date
- 02-Sep-2024
- Completion Date
- 02-Sep-2024
Overview
EN 17120:2019 is a European standard developed by CEN that specifies a test method for evaluating the performance of photocatalytic materials used in water purification. This standard focuses on assessing photocatalytic efficiency by measuring the degradation rate of phenol under UV irradiation. It applies to photocatalytic materials primarily in powder form, such as suspensions or slurries in water. The key analytical technique used to assess phenol degradation is High Performance Liquid Chromatography (HPLC).
This standard provides a reliable and reproducible procedure to quantify the photocatalytic activity of materials intended for water purification applications, ensuring consistency in testing and facilitating comparison between different materials and laboratories.
Key Topics
Scope and Materials
Applies to photocatalytic powders suspensions exposed to ultraviolet (UV) light for water purification tests by measuring phenol degradation rates.Test Principle
The photocatalytic material is suspended in an aqueous phenol solution and irradiated with UV light. Phenol concentration is monitored at intervals using HPLC to determine degradation kinetics and photocatalytic efficiency.Instrumentation and Setup
- UV irradiation system with a batch pyrex photoreactor (5 cm diameter, 100 ml volume)
- UV light sources such as mercury vapor lamps, UV-A fluorescent lamps, Xenon lamps, or LEDs
- HPLC system configured for phenol detection at wavelengths between 270 - 280 nm
- Optional Total Organic Carbon (TOC) analyzer for tracking mineralization of organic content
Testing Procedure
- Preparation of phenol stock and working solutions
- Suspension of photocatalytic material in phenol solution
- Controlled UV irradiation with stirring and temperature regulation
- Periodic sampling and filtration before HPLC analysis
- Optional TOC measurements to assess total organic degradation
Performance Metrics
- Calculation of phenol degradation rate constant (k) assuming first-order kinetics
- Comparison of photocatalytic activity to reference materials such as NIST SRM 1898 Titanium Dioxide Nanomaterial
- Reporting of initial and final pH, irradiance, light source characteristics, phenol concentrations, and degradation curves
Applications
Water Purification Evaluation
This standard is essential for researchers and manufacturers to test the effectiveness of photocatalytic materials in degrading organic pollutants like phenol, a common water contaminant. It facilitates product development for environmental technologies aimed at improving water quality.Material Quality Control
Laboratories use EN 17120:2019 to perform consistent photocatalytic activity assessments ensuring photocatalysts meet regulatory and performance benchmarks before commercial deployment.Comparative Studies
Enables comparative performance analysis of different photocatalytic powders, fostering innovation and optimization of catalysts used in wastewater treatment and drinking water purification systems.Regulatory Compliance
Supports certification processes by providing standardized, reproducible test methods accepted across European member states for photocatalytic water purification materials.
Related Standards
CEN/TS 16599:2014
Specifies irradiation conditions and measurement methods for testing photocatalytic properties of semiconductor materials.EN 1484:1997 & ISO 8245:1999
Guidelines for determining Total Organic Carbon (TOC) and Dissolved Organic Carbon (DOC) in water, complementary to phenol degradation analysis.Additional Photocatalysis Standards by CEN/TC 386
Providing broader frameworks for performance testing and material characterization in photocatalytic applications.
By adhering to EN 17120:2019, laboratories and industries can accurately and uniformly assess photocatalytic materials to ensure enhanced performance in water remediation, thereby contributing to safer, cleaner water resources. Keywords relevant to this standard include photocatalysis, water purification, phenol degradation, photocatalytic performance, HPLC analysis, UV irradiation, photocatalyst powders, and water treatment standards.
Frequently Asked Questions
EN 17120:2019 is a standard published by the European Committee for Standardization (CEN). Its full title is "Photocatalysis - Water purification - Performance of photocatalytic materials by measurement of phenol degradation". This standard covers: This document describes a test method to evaluate the performance of photocatalytic materials in water purification by measuring phenol degradation. This test method is applicable to photocatalytic materials in form of powders (suspensions in water, slurries) under UV irradiation. The photocatalytic performance of the tested material is assessed by the observed rate of phenol degradation at specified experimental conditions as determined by HPLC.
This document describes a test method to evaluate the performance of photocatalytic materials in water purification by measuring phenol degradation. This test method is applicable to photocatalytic materials in form of powders (suspensions in water, slurries) under UV irradiation. The photocatalytic performance of the tested material is assessed by the observed rate of phenol degradation at specified experimental conditions as determined by HPLC.
EN 17120:2019 is classified under the following ICS (International Classification for Standards) categories: 25.220.20 - Surface treatment. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 17120:2019 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Photokatalyse - Wasserreinigung - Verhalten von photokatalytischen Werkstoffen durch Messung der Verminderung von PhenolPhotocatalyse - Purification de l'eau - Évaluation des performances des matériaux photocatalytiques par mesurage de la dégradation du phénolPhotocatalysis - Water purification - Performance of photocatalytic materials by measurement of phenol degradation25.220.20Površinska obdelavaSurface treatmentICS:Ta slovenski standard je istoveten z:EN 17120:2019SIST EN 17120:2019en,fr,de01-maj-2019SIST EN 17120:2019SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 17120
February
t r s { ICS
t wä t t rä t r English Version
Photocatalysis æ Water purification æ Performance of photocatalytic materials by measurement of phenol degradation Photocatalyse æ Purification de l 5eau æ Évaluation des performances des matériaux photocatalytiques par mesurage de la dégradation du phénol
Photokatalyse æ Wasserreinigung æ Leistungsbewertung von photokatalytischen Werkstoffen durch Messung des Phenolabbaus This European Standard was approved by CEN on
s { November
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s y s t rã t r s { ESIST EN 17120:2019
Key A stirrer B photo-reactor cell (D = 5cm, V = 100ml) C light source D water cooler Figure 1 — Irradiation system arrangement (light source and stirrer positions can be reversed) A batch-type cylindrical photo-reactor cell made of pyrex glass, 5 cm in diameter and 100 ml volume with ability for magnetic or mechanical stirring is used. The temperature of the irradiated solution shall be measured and recorded inside the reactor during the test and should be kept within 25 ± 5 °C. The irradiation source shall consist of any lamp able to excite the ph
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...