Purenat

About the Company

Purenat commercializes a low-carbon alternative to activated carbon filters : an activated fabric (media) which destroys air pollutants instead of only capturing them, it is effective on VOC (odors, solvents, gaz) and micro-organisms (viruses and bacteria). The disruptive technology can be custom-integrated to meet the air pollution control challenges of indoor air, industrial waste and odors for manufacturers in a wide range of sectors: > Waste / Recycling > Wastewater treatment plants (WWTP) > Soil remediation > Surface treatment > Methanization > Buildings (fixed and mobile ventilation/exhaust systems and air purifiers) > Aerospace > Automotive Make an appointment for a personalized pre-study contact@pure-nat.com | 05 59 01 11 64 About Purenat > Startup deeptech founded in 2020 > Two founders with a team of 6 > 1 patent in 2022 > 1st found raising (1.1M€) in 2023 to recruit, complete the industrial scale and start commercial launch > Awards won in 2023 : Pollutec Innovation, Global Industrie, NA 20 by French Tech

Listed Jobs

Company Name

Purenat

Job Title

Stagiaire en recherche et développement

Job Description

**Job Title:** R&D Intern – Photocatalytic Textile Filter Materials **Role Summary:** Support the development of new photocatalytic matrices for textile air‑filter applications through experimental research, material selection, formulation, and performance testing in collaboration with the Laboratory of Condensed Matter Chemistry (LCMCP) in Paris. **Expectations:** - Conduct literature reviews and engage suppliers to identify promising commercial photocatalysts. - Apply defined selection criteria to shortlist materials. - Plan and coordinate experimental schedules, material procurement, and formulation trials. - Perform comprehensive material characterization and photocatalytic activity tests. - Produce clear protocols, test reports, and documentation of results. - Demonstrate proactive communication, organization, and a strong interest in experimental research. **Key Responsibilities:** 1. Perform bibliographic study and supplier outreach to compile a list of candidate photocatalysts. 2. Develop and apply a criteria matrix for material screening. 3. Design experimental timelines, manage supplies, and execute formulation of new photocatalytic matrices. 4. Characterize formulations using mechanical testing, contact‑angle measurements, infrared spectroscopy, DSC, microscopy, etc. 5. Set up and conduct photocatalytic reactivity experiments. 6. Write detailed test protocols, record data, and draft technical reports. **Required Skills:** - Literature research and technical sourcing. - Ability to define and use multi‑criteria selection tools. - Experimental planning and project tracking. - Proficiency with material characterization techniques (mechanical tests, contact‑angle, FTIR, DSC, optical/electron microscopy). - Experience in photocatalysis testing or related chemical analysis is a plus. - Strong scientific writing and documentation skills. - Team collaboration and effective communication in an academic‑industry environment. **Required Education & Certifications:** - Currently enrolled in or recently completed a Master’s program (Bac+4/+5) – Master 1/2 or Engineering degree in Chemistry, Materials Science, or related field. - Prior experience with polymer/material characterization or aging studies preferred. - No specific certifications required.

Paris, France

Hybrid

13-01-2026