Laboratory of Photochemical Reaction Engineering

Research Focus and Overview

The research group "Photochemical Reaction Engineering" was established in April 2018 as a part of the Institute of Chemical Engineering and works on fundamental investigations, optimization and design of photoreactors as well as photochemical processes. Optimization and design is based on fundamental knowledge of the photon fluxes in the reactors. For this, micro- and millistructured reactors, online-analytical methods, additive manufacturing and numerical simulations are applied as tools. Another topical focus lies on the application of light as tool for investigations in terms of reaction engineering.

An overview can be found here.

Head of Laboratory: Prof. Dr. rer. nat. Dirk Ziegenbalg

Group Members

Scientific Lead

  • Prof. Dr. Dirk Ziegenbalg

Scientific Co-Workers (PhD Students)

  • M.Sc. Florian Gaulhofer
  • M.Sc. Fabian Guba
  • M.Sc. Daniel Kowalczyk
  • M.Sc. Christian Köcheler
  • M.Sc. Pengcheng Li
  • M.Sc. Benjamin Wriedt

Focus and Methods

Main Topics

  • Design, characterization and intensivation of photoreactors
  • New methods for characterizing photoreactors
  • Unsteady operation of photoreactions
  • Modelling and simulation of photoreactors
  • Reaction control
  • Light as tool
  • Multiphase reactions


  • Actinometry
  • Radiometry
  • Chemical Synthesis
  • Additive manufacturing
  • Modelling and simulation

New Publication online

June 2022

Another new CataLight publication is now published by Angewandte Chemie. Read our scientific perspective on comparability of light-driven catalysis here: 10.1002/anie.202114106 

The DFG granted two new projects within the Priority Program 2370 on photocatalytic and photoelectrocatalytic nitrogen conversion. Read more here.

May 2022

Two new CataLight publications were accepted recently and are online now.

We present a modular open-source photoreactor in ChemPhotoChem. Read the full story here: 10.1002/cptc.202200044 

We could boost the efficiency of light-driven water splitting by dynamic irradiation. The publication is out now in ChemSusChem: 10.1002/cssc.202200708


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A snapshot of our work presented at the studium generale at Ulm University (in German).

We are always looking for motivated student assistants. If you are interessted in contributing to our research, do not hesitate to contact Prof. Ziegenbalg.


We work on various interesting  topics that can also be investigated within research internships and Bachelor's or Master's theses. To take a look on our currently open topics, click here.