Overview
Photocatalyst testing assesses the performance of materials like titanium dioxide (TiO₂) that initiate redox reactions under UV or visible light. These tests measure degradation rates of pollutants, antibacterial efficacy, and durability under operational conditions. Standardized protocols ensure comparability across research and industrial applications. Testing is critical for quality control in manufacturing photocatalytic products such as air filters, water purification systems, and self-cleaning glass. Regulatory compliance often requires adherence to international standards like ISO 22197 for air purification performance or JIS R 1703 for antibacterial activity.
Physical and Chemical Properties
Key metrics include quantum yield (photons utilized per reaction), bandgap energy (determines light absorption range), and surface hydroxyl group density. Advanced characterization techniques like UV-Vis spectroscopy and electron spin resonance (ESR) identify reactive oxygen species generation. Accelerated aging tests evaluate long-term stability by exposing photocatalysts to extreme humidity, temperature, or contaminant loads. X-ray diffraction (XRD) analyzes crystallinity changes post-testing, as anatase-phase TiO₂ typically outperforms rutile in photocatalytic activity.
Main Applications
In construction, testing validates photocatalytic concrete's ability to reduce NOx emissions. For medical devices, assays confirm antimicrobial performance against pathogens like E. coli under ISO 27447. Water treatment applications focus on organic pollutant breakdown rates measured via HPLC or TOC analysis. Emerging uses include photocatalytic hydrogen production, where testing quantifies H₂ evolution rates using gas chromatography. Indoor air purifiers undergo formaldehyde degradation tests per Chinese standard GB/T 23761-2020.
Safety and Storage
Nanoparticulate photocatalysts require containment during testing to prevent inhalation risks. Labs should use HEPA-filtered glove boxes when handling dry powders. Post-testing, samples with adsorbed pollutants may require hazardous waste disposal. Unused photocatalyst materials should be stored in amber glass containers to prevent light activation. Temperature-controlled environments (15-25°C) maintain stability, especially for organic-inorganic hybrid photocatalysts prone to thermal degradation.
B2B Procurement Guide
When sourcing testing services, prioritize labs accredited for relevant ISO standards. Request detailed method descriptions covering light source specifications (e.g., 365nm UV intensity), target pollutant concentrations, and control sample protocols. For in-house testing equipment, consider modular systems allowing customization of reaction chamber size and gas flow rates. Budget approximately $20,000-$100,000 for basic to advanced setups. Key suppliers include PerfectLight (China) and PSLabTech (UK) for specialized photoreactors.
Related Manufacturers
- 主营：检测
- 主营：纺织品、覆面材料、纺织面料、检测技术、检测中心、检测平台、检测设备、纤维检测、检测实验室、五氯苯酚、儿童服装、童装绳索、服装机械、儿童服饰安全
- 主营：金属管材检测、塑胶跑道检测、第三方检测机构、润滑油检测、电缆检测、钢管检测、焊管检测、镀锌管检测、无缝钢管检测、钛镁合金检测、水溶肥检测、接线端子检测、膨润土检测、洗涤剂检测、食品添加剂检测、沥青检测、白油检测、煤焦油检测、煤矸石检测、生物质燃料检测、水处理药剂检测、螺栓检测、煤炭检测
- 主营：气相色谱仪、热解析仪、全自动顶空进样器、变压器油色谱仪、便携式气相色谱仪、智能实验室、高纯气体分析仪、在线色谱仪、氢空发生器
- 主营：光催化剂成分分析、配方研发
- 主营：氟硅酸镁、氟硅酸钠、氟化氢铵、氟化铵、氟化钾、氟化钠、氟硅酸钾、氟硅酸锌、六氟磷酸钾、六氟磷酸钠、氟硅酸铵、氟化铝
- 主营：脚手架、传感器、测试仪、检测仪、催化剂、检测设备、检测扣件、刹车片、铝合金、试验机、金属丝、钢管扣件、钢筋套筒、水泥胶砂、验机夹具、金属铸件、弹簧拉压、直角扣件、扭力测力计、拉拔力夹具、拉力实验机、弹簧试验台、缠绕一体机、扭力测试机、万能测试机
- 主营：纺织产品检测、面料检测
- 主营：液相色谱仪、气相色谱仪、凝胶色谱仪、顶空进样器、便携式色谱仪、在线色谱仪、柱后衍生装置
- 主营：检查仪、分析仪、匀胶机、监测仪、镀膜机、解析仪、真空阀、sbr小试、cod恒温、水位计、离子计、测定仪、速测仪、气压力、浊度计、实验室、采样器、测振仪、混匀仪、硬度计、崩解仪、微伏表、蛋白质、纯水机、测试仪
- 主营：紫外线杀菌器、紫外线消毒器、中压紫外线消毒器、aot光催化消毒设备、中压紫外线杀菌器、过流式紫外线消毒器、管道式紫外线消毒器、紫外线消毒模块、紫外线消毒模块组、明渠式紫外线消毒设备、水箱自洁消毒器、aop水质消毒设备
- 主营：钛白粉、二氧化钛、异氟尔酮、荧光增白剂、油酸酰胺、二辛酯、二丁酯、片碱、草酸、丙三醇、异丙醇、氨水、乙酸乙酯、氧化铁绿、氧化铁红、硬脂酸、马林酸树脂、二甲基硅油、钙粉、甘油、次氯酸钠、辛醇、乙醇、甲醇、甲基硅油
- 主营：氮氧化合物监测、烟气在线监测、餐饮油烟监测、臭氧消除剂、VOCs监测、餐饮油烟净化器、VOCs处理设备、工业油雾净化设备、大气治理材料、除尘设备、废气处理设备、智慧环保在线系统、餐饮油烟除味设备、恶臭与异味处理设备、废气治理解决方案
- 主营：乳化剂、分散剂、防水防油剂、二氧化硅
- 主营：椰子油、油酸锌、硫酸铯、杀菌剂、印染剂、阻燃剂、润湿剂、催化剂、粘合剂、乳化剂、防腐剂、塑化剂、草酸锰、硫酸锂、石英砂、绝缘油、茶皂素、醋酸镁、锂电池、碘化锂、培养基、蒸馏水、硬脂酸、草酸钾、磷酸铁
- 主营：光稳定剂1084、抗氧剂9228、荧光增白剂OB、光引发剂651、抗氧剂565、抗氧剂5067、紫外线吸收剂BP9、紫外线吸收剂BP8、抗氧剂1098、紫外线吸收剂BP-1、抗氧剂T502、抗氧剂1135、水溶性紫外线吸收剂D、抗氧剂BHA、内酯型抗氧剂136、光引发剂CBP、防老剂2246、抗氧剂、紫外线吸收剂、防老剂、对甲苯磺酸钠、苯并三氮唑 BTA、十二烷基苯磺酸钠
- 主营：臭氧催化剂、臭氧催化填料
- 主营：聚丙烯酰胺、聚合氯化铝、聚合硫酸铁、消泡剂、阻垢剂、除臭剂、干燥剂、除氟剂、硫酸亚铁、复合碳源、活性炭、醋酸钠、葡萄糖、纤维球滤料、净水填料、菌种
- 主营：正己烷、苯乙烯、异丙醇、溶剂油、金属清洗剂、叔丁醇、正庚烷、醋酸丁酯、环氧树脂、二氯甲烷、乙酸乙酯、醋酸甲酯、n-甲基甲胺、多乙烯多胺、丙烯酸甲酯、甲基丙烯酸、二乙氨基乙醇
- 主营：紫外线消毒器、水箱自洁消毒器、臭氧发生器、光催化反应器、AOT紫外光催化消毒设备、紫外线消毒模块、蒸馏水机、中压紫外线消毒器、TOC脱除器、UV-AOP高级氧化设备、船舶污水紫外线消毒器、非透明液体紫外线消毒器、电高效蒸馏水机、列管多效蒸馏水机、水产养殖紫外线消毒器、TOC降解器、TOC去除器、TOC消解器、内置式水箱自洁消毒器、外置式水箱自洁消毒器、空气源臭氧发生器、氧气源臭氧发生器、明渠式紫外线消毒器
- 主营：漂白粉、茶皂素、噻霉酮、杀菌剂bit、浮选油、草酸铵、戊二醛、苯甲醇、磺化油、漂粉精、氟化钠、三甘醇、碳酸钙、白僵菌、松醇油、碳酸钡、黄糊精、雷米邦a、号全精炼、三乙醇胺、牛骨发酵、快干水泥、多聚甲醛、次氯酸钠、羟基乙叉
- 主营：无机材料、锌氧化物、镁氧化物、ptfe添加剂用、纳米银抗菌剂、催化剂载体用、白色粉末、3n镝氧化物、纳米氧化钬、纳米氧化铈、透明钛溶胶、不锈钢制品、氧化钛白粉、纳米氧化镧、纳米氧化铜、纳米氧化铒、氧化物粉末、氧化铁液体、纳米氧化镁、溶氧化锌液体、高纯氧化锌zno、纳米三氧化钨、纳米负离子粉、5n工业纯氧化铝、纳米三氧化二铝