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：

---

纳米级豌豆荚生物炭包埋的淀粉水凝胶：一种新型纳米吸附剂，可有效去除铬（VI）离子和萘普生药物。

基于从豌豆荚（N-PSPB）衍生的纳米级球形生物炭与淀粉水凝胶（SHGL）的封装，制备了新型的环保，可持续的（N-PSPB / SHGL）纳米吸附剂。检查淀粉和N-PSPB之间的质量比，并选择2％（w / w）作为组装水凝胶的最佳制备百分比。N-PSPB / SHGL纳米吸附剂（500.0％）在室温（25°C）下具有较高的溶胀能力，相对于0.1 mol L-1 HCl的再生，十个循环具有出色的稳定性。另外，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（226.94m2 / g）和孔体积（9.88cm3 / g）。对N-PSPB / SHGL纳米吸附剂进行了广泛的研究，以评估其去除萘普生药物（NAP）和铬（VI）的效率。Cr（VI）和NAP药物吸附符合拟秒动力学，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。