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  • Starting this year, we are offering two Awards in honour of Professor David Ollis and Professor Dionysios Dionysiou: (1) Ollis TiO2 Photocatalysis Award and (2) Dionysiou AOPs Award.  The recipients of these Awards will be chosen by a special scientific committee.  Also, the recipients will be awarded a $2,000 honorarium and a plaque. Soon we will start the nomination process for these Awards.
  • I would like to inform you that authors have the option to submit their papers presented at SPASEC-27/AOTs-28 for consideration for publication after a peer review process, in a special issue of the Ozone: Science and Engineering Journal.
  • We are still waiting for the responses of more invitees for our invitation to speak at these conferences. Please note: for those who cannot physically participate for whatever reasons, we can accommodate them by providing the opportunity of online presentations (hybrid approach).  The registration fee for online presentation is 300 Euro (early registration, invited speaker) / 400 Euro (regular registration). The registration fee for online presentation is 250 Euro (early registration, student) / 350 Euro (regular registration).  The number of invited speakers who requested online presentation is limited.
  • Because the presentations of the invited speakers represent the corner stone of the program, we usually consider them as members of the International Scientific Committee at the same time.
  • Those who are planning to attend our conferences as well as SPEA-12 will qualify for a discounted registration fee through Redox Technologies Inc. of 400 Euro (early registration)/ 500 Euro (regular registration).
  • The deadline for abstracts submission (up to 500 words) in MS Word is Friday, March 29, 2024. Abstracts need to be submitted to
  • Your cooperation in forwarding this message to whoever you think would be interested in presenting his / her work at these conferences would be greatly appreciated.