TY - JOUR T1 - Chitosan-coated black sesame (Sesamum indicum L.) seed pulp as a novel candidate adsorbent for Cr(VI) elimination. AU - Parlayıcı,Şerife, AU - Tuna,Kübra, AU - Özdemir,Elif, AU - Pehlivan,Erol, PY - 2019/4/13/entrez PY - 2019/4/13/pubmed PY - 2019/6/27/medline SP - 688 EP - 698 JF - Water science and technology : a journal of the International Association on Water Pollution Research JO - Water Sci Technol VL - 79 IS - 4 N2 - This study evaluates the application of Cr(VI) adsorption from the prepared synthetic solution by black sesame (Sesamum indicum L.) seed pulp (BSSP) and chitosan (Cts)-coated black sesame seed pulp beads (Cts-BSSP). BSSP and Cts-BSSP were used as an adsorbent without any chemical or physical treatment to remove Cr(VI) from an aqueous medium. The results indicated that the Cr(VI) removal was pH-dependent and reached an optimum at pH 2.0. It has been observed that the percentage of adsorption increased from 62% to 95% when the amount of Cts-BSSP increased from 0.0125 g to 0.0250 g. The required adsorbent amount for the maximum removal was 0.05 g and 0.1 g for Cst-BSSP and BSSP, respectively. The contact time for the adsorption was 120 min and 90 min for BSSP and Cst-BSSP, respectively. Scanning electron microscopy and Fourier transform infrared spectroscopy were used to explore the possible adsorption mechanism for Cr(VI). The equilibrium data for the BSSP and Cts-BSSP were used with the Langmuir and Freundlich adsorption isotherm models to assess the adsorption capacity and relevant mechanism. The adsorption capacity of the Cts-BSSP for Cr(VI) is relatively high compared to BSSP. The monolayer maximum adsorption capacities for Cr(VI) ions were 31.44 and 18.32 mg/g for Cts-BSSP and BSSP, respectively. SN - 0273-1223 UR - https://www.unboundmedicine.com/medline/citation/30975935/Chitosan_coated_black_sesame__Sesamum_indicum_L___seed_pulp_as_a_novel_candidate_adsorbent_for_Cr_VI__elimination_ DB - PRIME DP - Unbound Medicine ER -