Scholarlink

<p>In this study, a lipid-functionalized sorbent derived from <i>Rhizopus oryzae</i> biomass was produced using a biofunctionalization strategy, in which biomass composition was modified via metabolically induced changes during the fungal growth under nitrogen-limited and oxygen limited cultivation conditions. The biosorbent was characterized in terms of point of zero charge, surface morphology (SEM), functional groups (FTIR), and lipid content. Batch biosorption experiments were conducted to evaluate the removal of triclosan (TCS) from aqueous solutions. The effect of lipid content, expressed as the lipid-to-biomass yield (Y<sub>X/L</sub>), on TCS sorption was systematically investigated. Furthermore, the reaction conditions (pH, biomass dose and agitation rate) were optimized using a 2<sup>3</sup> central composite design to maximize sorption performance. The biosorbent was a slightly acidic to neutral material and showed enhanced sorption capacity with increasing Y<sub>X/L</sub>. Under optimal conditions (pH 5.68, 115.9&#xa0;rpm and a biomass dose of 60.50&#xa0;mg), a sorption efficiency of up to 88.2 ± 0.62% was achieved. Kinetic analysis indicated that the pseudo-first order model adequately described the sorption process, although the intraparticle diffusion was identified as the main rate-limiting step. Equilibrium data were best fitted by the Freundlich isotherm, which was further modified to incorporate the effect of Y<sub>L/X</sub>. The thermodynamic analysis revealed that TCS sorption was spontaneous and endothermic, suggesting a process predominantly governed by physical interactions. Overall, these findings demonstrate that lipid-biofunctionalized <i>R. oryzae</i> biomass is a sustainable biosorbent with promising potential for TCS removal under controlled laboratory conditions.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Lipid-Biofunctionalized Rhizopus oryzae Biomass for Enhanced Triclosan Sorption from Water

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年7月28日

查看全文
  • Juan José Benítez-Cortez,
  • Araceli Tomasini,
  • Wylma Dolores Pérez-Pérez,
  • Julio César García-Martínez,
  • Deyanira Ángeles-Beltrán,
  • Héctor Hugo León-Santiestebán

摘要

In this study, a lipid-functionalized sorbent derived from Rhizopus oryzae biomass was produced using a biofunctionalization strategy, in which biomass composition was modified via metabolically induced changes during the fungal growth under nitrogen-limited and oxygen limited cultivation conditions. The biosorbent was characterized in terms of point of zero charge, surface morphology (SEM), functional groups (FTIR), and lipid content. Batch biosorption experiments were conducted to evaluate the removal of triclosan (TCS) from aqueous solutions. The effect of lipid content, expressed as the lipid-to-biomass yield (YX/L), on TCS sorption was systematically investigated. Furthermore, the reaction conditions (pH, biomass dose and agitation rate) were optimized using a 23 central composite design to maximize sorption performance. The biosorbent was a slightly acidic to neutral material and showed enhanced sorption capacity with increasing YX/L. Under optimal conditions (pH 5.68, 115.9 rpm and a biomass dose of 60.50 mg), a sorption efficiency of up to 88.2 ± 0.62% was achieved. Kinetic analysis indicated that the pseudo-first order model adequately described the sorption process, although the intraparticle diffusion was identified as the main rate-limiting step. Equilibrium data were best fitted by the Freundlich isotherm, which was further modified to incorporate the effect of YL/X. The thermodynamic analysis revealed that TCS sorption was spontaneous and endothermic, suggesting a process predominantly governed by physical interactions. Overall, these findings demonstrate that lipid-biofunctionalized R. oryzae biomass is a sustainable biosorbent with promising potential for TCS removal under controlled laboratory conditions.