Presented to

[نام نویسنده را انتخاب نمایید]

This is to certify that your paper entitled «Evaluation of the various adsorption isotherm models for the photocatalytic removal of methylene blue from the wastewater by graphene oxide/TiO۲/SiO۲» was indexed with 8 pages, in the CIVILICA citation database, code COI:JR_ARWW-11-1_009, after evaluation and approval of the referees of the "Journal of Applied Research in Water and Wastewater Vol 11, Issue 1 , Year 2024.

While offering our congratulations on the indexation of your paper, please be informed that this certificate is prepared based on the information submitted by the secretariat of the above journal and the information contained in the CIVILICA database, and the accuracy of its content can be inquired at any time through link provided at the bottom of the page or scanning the code image.