Browsing by Author "Thakur, Vijay Kumar"
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Item Lead removal from synthetic wastewater by biosorbents prepared from seeds of artocarpus heterophyllus and Syzygium Cumini(Elsevier Ltd, 2022-01) Giri, Deen Dayal; Alhazmi, Alaa; Mohammad, Akbar; Srivastava, Neha; Thakur, Vijay Kumar; Gupta, Vijai Kumar; Pal, Dan Bahadur; Haque, Shafiul; Bursa Uludağ Üniversitesi/Tıp Fakültesi/Biyokimya Bölümü.; 0000-0002-2989-121X; EXU-4037-2022; 35793732800The present investigation deals with removal of lead (Pb+2) ions from waste water using biosorbent prepared from seeds of Artocarpus heterophyllus (SBAh) and Syzygium cumini (SBSc). Biosorbents surface has been characterized through FT-IR spectroscopy to probe the presence of functional groups. Response surface methodology enabled optimized conditions (Pb+2 concentration 2 mu g/mL, pH 5.8 and bioadsorbent dose 60 mg) resulted in Pb+2 removal similar to 96% for SBAh and similar to 93% for SBSc at agitation speed 300 rpm. The adsorption capacity has been found to be 4.93 mg/g for SBAh and 3.95 mg/g for SBSc after 70 min. At optimal experimental conditions, kinetics of biosorption was explained well by inter-particle diffusion model for SBAh (R-2 = 0.99) whereas Elovich model best fitted for SBSc (R-2 = 0.98). Further, both the biosorbents followed Temkin adsorption isotherm model.