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This is to certify that your paper entitled «Kinetics and equilibrium evaluation of acid red 14 removal by adsorption onto silver nanoparticles-nano alumina- chitosan biocomposite» was indexed with 10 pages, in the CIVILICA citation database, code COI:CBGCONF06_104, after evaluation and approval of the referees of the "6th National Congress on Strategic Research in Chemical and Chemical Engineering with Emphasis on Iranian Native Technologies held in Tehran 2020.

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 conference 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.