Amaku James Friday, Mtunzi Fanyana M
Wastewater Treatment Research Laboratory, Department of Biotechnology and Chemistry, Vaal University of Technology, Vanderbijlpark, 1911, Gauteng, South Africa.
Department of Chemistry, Michael Okpara University of Agriculture Umudike, P.M.B 7267, Umuahia, Abia State, Nigeria.
Environ Sci Pollut Res Int. 2024 Dec;31(57):65496-65512. doi: 10.1007/s11356-024-35594-8. Epub 2024 Nov 25.
Funtumia elastica husk was employed as an efficient and economically viable adsorbent to supplement traditional treatment methods in the removal of sulfamethoxazole from wastewater by converting it into usable material. The purpose of this study was to make biochar (FHB) from Funtumia elastica husk through the pyrolysis process and further modify the biochar using zinc oxide nanoparticles (ZnONPs) to a nanocomposite (FBZC). The antioxidant and antimicrobial characteristics as well as the potential of FBZC and FHB to sequester sulfamethoxazole from wastewater were investigated. Uptake capacities of 59.34 mg g and 26.18 mg g were attained for the monolayer adsorption of SMX onto FBZC and FHB, respectively. SEM and FTIR spectroscopic techniques were used to determine the surface morphology and chemical moieties of adsorbents, respectively. Brunauer-Emmett-teller (BET) surface analysis was used to assess the specific surface area of FHB (0.5643 m g) and FBZC (1.2267 m g). The Elovich and pseudo-first-order models are both well-fitted by the experimental data for FHB and FBZC, according to kinetic results. Nonetheless, the equilibrium data for FHB and FBZC were better explained by the Freundlich and Langmuir isotherm models, respectively. The pH values of 6.83 and 5.57 were determined for FBZC and FHB respectively. Optimum solution pH, dosage, and contact time of 6, 0.05 g, and 120 min were estimated for FHB and FBZC. In conclusion, these findings demonstrate the strong potential of FBZC to simultaneously arrest the spread of pathogenic microbes and sequester sulfamethoxazole from wastewater.
弹性富特木果皮被用作一种高效且经济可行的吸附剂，通过将其转化为可用材料来补充传统处理方法，以去除废水中的磺胺甲恶唑。本研究的目的是通过热解过程从弹性富特木果皮制备生物炭（FHB），并使用氧化锌纳米颗粒（ZnONPs）将生物炭进一步改性为纳米复合材料（FBZC）。研究了FBZC和FHB的抗氧化和抗菌特性以及从废水中螯合磺胺甲恶唑的潜力。SMX在FBZC和FHB上的单层吸附量分别达到59.34 mg/g和26.18 mg/g。分别使用扫描电子显微镜（SEM）和傅里叶变换红外光谱（FTIR）技术来确定吸附剂的表面形态和化学基团。采用布鲁诺尔-埃米特-泰勒（BET）表面分析来评估FHB（0.5643 m²/g）和FBZC（1.2267 m²/g）的比表面积。根据动力学结果，FHB和FBZC的实验数据都很好地拟合了埃洛维奇模型和准一级模型。然而，FHB和FBZC的平衡数据分别由弗伦德利希等温线模型和朗缪尔等温线模型能更好地解释。FBZC和FHB的pH值分别测定为6.83和5.57。FHB和FBZC的最佳溶液pH值、剂量和接触时间分别估计为6、0.05 g和120分钟。总之，这些发现表明FBZC具有强大的潜力，可同时阻止致病微生物的传播并从废水中螯合磺胺甲恶唑。
