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Nanoscale Pisum sativum pods biochar encapsulated starch hydrogel: A novel nanosorbent for efficient chromium (VI) ions and naproxen drug removal.
Bioresource Technology ( IF 9.7 ) Pub Date : 2020-03-27 , DOI: 10.1016/j.biortech.2020.123263 Asmaa K Mohamed 1 , Mohamed E Mahmoud 1
Bioresource Technology ( IF 9.7 ) Pub Date : 2020-03-27 , DOI: 10.1016/j.biortech.2020.123263 Asmaa K Mohamed 1 , Mohamed E Mahmoud 1
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Assembly of novel ecofriendly and sustainable (N-PSPB/SHGL) nanosorbent was fabricated based on encapsulation of derived nanoscale spherical biochar from Pisum sativum pods (N-PSPB) with starch hydrogel (SHGL). The mass ratio between starch and N-PSPB was examined and 2% (w/w) was selected as the optimum percentage for fabrication of the assembled hydrogel. High swelling capacity was characterized by N-PSPB/SHGL nanosorbent (500.0%) at room temperature (25 °C), excellent stability for ten cycles with respect to regeneration by 0.1 mol L-1 HCl. Additionally, characterizations of N-PSPB/Starch nanosorbent were established by SEM and BET measurement to characterize surface area (226.94 m2/g) and pore volume (9.88 cm3/g). The N-PSPB/SHGL nanosorbent was subjected to extensive investigations to evaluate its efficiency for removal of naproxen drug (NAP) and chromium (VI). The Cr(VI) and NAP drug adsorptions were fitted to pseudo-second kinetic and correlated with Langmuir isotherm. The adsorption processes were spontaneous and endothermic based on thermodynamic study.
中文翻译：
纳米豌豆荚生物炭封装淀粉水凝胶：一种新型纳米吸附剂，可有效去除铬 (VI) 离子和萘普生药物。
基于豌豆荚衍生的纳米球形生物炭 (N-PSPB) 与淀粉水凝胶 (SHGL) 的封装，组装了新型生态友好且可持续的 (N-PSPB/SHGL) 纳米吸附剂。检查了淀粉和 N-PSPB 之间的质量比，并选择 2% (w/w) 作为制备组装水凝胶的最佳百分比。 N-PSPB/SHGL 纳米吸附剂 (500.0%) 在室温 (25 °C) 下具有高溶胀能力，在 0.1 mol L-1 HCl 再生十个循环中具有优异的稳定性。此外，通过 SEM 和 BET 测量建立了 N-PSPB/淀粉纳米吸附剂的表征，以表征表面积 (226.94 m2/g) 和孔体积 (9.88 cm3/g)。 N-PSPB/SHGL 纳米吸附剂经过了广泛的研究，以评估其去除萘普生药物 (NAP) 和铬 (VI) 的效率。 Cr(VI) 和 NAP 药物吸附符合准二级动力学并与 Langmuir 等温线相关。根据热力学研究，吸附过程是自发的和吸热的。
更新日期：2020-03-28
中文翻译：
纳米豌豆荚生物炭封装淀粉水凝胶：一种新型纳米吸附剂，可有效去除铬 (VI) 离子和萘普生药物。
基于豌豆荚衍生的纳米球形生物炭 (N-PSPB) 与淀粉水凝胶 (SHGL) 的封装，组装了新型生态友好且可持续的 (N-PSPB/SHGL) 纳米吸附剂。检查了淀粉和 N-PSPB 之间的质量比，并选择 2% (w/w) 作为制备组装水凝胶的最佳百分比。 N-PSPB/SHGL 纳米吸附剂 (500.0%) 在室温 (25 °C) 下具有高溶胀能力，在 0.1 mol L-1 HCl 再生十个循环中具有优异的稳定性。此外，通过 SEM 和 BET 测量建立了 N-PSPB/淀粉纳米吸附剂的表征，以表征表面积 (226.94 m2/g) 和孔体积 (9.88 cm3/g)。 N-PSPB/SHGL 纳米吸附剂经过了广泛的研究，以评估其去除萘普生药物 (NAP) 和铬 (VI) 的效率。 Cr(VI) 和 NAP 药物吸附符合准二级动力学并与 Langmuir 等温线相关。根据热力学研究，吸附过程是自发的和吸热的。
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