Study of Adsorption for Rose Bengal and Nile blue Dyes on the Nano/Micro-surface of walnut shell-derived coal .
نویسندگان
1 Department of Chemistry, College of Education for Women, University of Kufa, Al Najaf Al-Ashraf, Iraq
2 Department of Chemistry, College of Education for Women, University of Kufa, Al Najaf Al-Ashraf, Iraq
doi
10.22052/JNS.2025.03.015چکیده
Since water pollution constitutes a large proportion of the pollutants spread on the surface of the earth, pollution is unfortunately the most dangerous silent weapon in the world today, especially in light of technological progress. Great efforts have been made to get rid of this pollution. Dyes, which are colored substances that can somehow bind to materials and give them bright colors, are considered water pollutants and have toxic effects on humans. The adsorption of the dyes Indigo Blue and Rose Bengal from their aqueous solutions on the surface of coal derived from walnut shells activated with phosphoric acid was studied as an economical method. Measurements of the surface of the coal derived from walnut shells were made, including SEM, and TEM. Many parameters were studied to determine the best conditions that improve the adsorption process. The results obtained after conducting many effects showed that the contact time for Indigo Blue dye was (150 minutes) and for r Bengal dye was (120 minutes), and the pH function as well as different temperatures (298 to 328 K).
