Synthesis of Low-Cost, Bio-Based Novel Adsorbent Material Using Charge-Transfer Interaction for Water Treatment from Several Pollutants: Waste to Worth

Tea is the third most consumed beverage in Saudi Arabia (a country Middle East) after water and Arabian coffee. Hence, a large amount of tea leaves discarded as solid waste. Waste (WTLs) have no commercial value could be considered an environmentally sustainable costless material. This work aimed to manufacture adsorbent material from WTLs charge-transfer (CT) interaction use this effectively for removal different kinds pollutants water. The was manufactured three steps. First, CrFeO3 metal composite synthesized CT between FeCl3 CrCl3 with urea. Second, activated carbons were prepared using facile clean treatments pre-carbonization, simple potassium hydroxide (KOH) activation treatment. Finally, fabricated by grounding 1:10 molar ratio (metal carbons). materials characterized spectroscopically morphologically FT-IR, XRD, SEM/EDX, TEM analysis. absorbent used adsorb two organic dyes (Azocarmine G2; M1, Methyl violet 2B; M2), pesticides (Tiller 480SL; M3, Acochem 25% WP; M4) aqueous solution, it showed promising adsorption efficacy. minimum material’s dosage obtain maximum efficiency (R%) M2, M4 100 mL solution (100 mg/L) 0.11, 0.14, 0.13, 0.12 g, respectively. max R% M1 (96.8%) achieved first 45 min, 95.5%, during 55 M3 (96.4%) 35 while M4, 98.6%, min.