National Soybean Processing Industry Technology Innovation Center, Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University (BTBU), Beijing 100048, China.
Toxins (Basel). 2021 Jul 18;13(7):500. doi: 10.3390/toxins13070500.
A novel porous carbon adsorbent for the removal of deoxynivalenol was prepared from soybean dreg (SD). The new material was characterized by scanning electron microscopy equipped with energy dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) analysis, N adsorption/desorption measurement techniques, X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy and X-ray photoelectron spectroscopy (XPS). The specific surface area of the SDB-6-KOH was found to be 3655.95 m g, the pore volume was 1.936 cm g and the average pore size was 2.125 nm. The high specific surface area and effective functional groups of the carbon material promoted the adsorption of deoxynivalenol. By comparing the adsorption effect of SDB-6-X prepared with different activators (X: KOH, KCO, KHCO), SDB-6-KOH had the highest adsorption capacity. The maximum adsorption capacity of SDB-6-KOH to deoxynivalenol was 52.9877 µg mg, and the removal efficiency reached 88.31% at 318 K. The adsorption kinetic and isotherm data were suitable for pseudo-second-order and Langmuir equations, and the results of this study show that the novel carbon material has excellent adsorptive ability and, thus, offers effective practical application potential for the removal of deoxynivalenol.
一种新型多孔碳吸附剂，用于去除脱氧雪腐镰刀菌烯醇，由大豆渣（SD）制备而成。该新材料的特征在于配备能量色散 X 射线光谱仪（SEM-EDS）的扫描电子显微镜、透射电子显微镜（TEM）、BET 分析、N 吸附/解吸测量技术、X 射线衍射（XRD）、拉曼光谱、傅里叶变换红外（FTIR）光谱和 X 射线光电子能谱（XPS）。发现 SDB-6-KOH 的比表面积为 3655.95 m² g，孔体积为 1.936 cm³ g，平均孔径为 2.125 nm。碳材料的高比表面积和有效官能团促进了脱氧雪腐镰刀菌烯醇的吸附。通过比较用不同活化剂（X：KOH、KCO、KHCO）制备的 SDB-6-X 的吸附效果，SDB-6-KOH 具有最高的吸附容量。SDB-6-KOH 对脱氧雪腐镰刀菌烯醇的最大吸附容量为 52.9877 µg mg，在 318 K 时去除效率达到 88.31%。吸附动力学和等温线数据适合伪二阶和 Langmuir 方程，研究结果表明，新型碳材料具有优异的吸附能力，因此为去除脱氧雪腐镰刀菌烯醇提供了有效的实际应用潜力。
