Chen Siji, Wang Zhixiao, Xia Yuhan, Zhang Bolun, Chen Huan, Chen Guang, Tang Shanshan
College of Life Sciences, Jilin Agricultural University Changchun 130118 China
The Key Laboratory of Straw Biology and Utilization, The Ministry of Education, Jilin Agricultural University Changchun 130118 China.
RSC Adv. 2019 Aug 15;9(44):25480-25487. doi: 10.1039/c9ra04648h. eCollection 2019 Aug 13.
In this work, fungal hyphae (FH, ) was used as the carbon resource for the preparation of porous carbon materials (PCFH) using mixed alkali as the activator. The SEM, N adsorption/desorption, FT-IR, XRD, Raman, and XPS were used to characterize the structure and surface properties of PCFH. The results showed that the PCFH not only has a huge Brunauer-Emmett-Teller (BET) surface area (2480 m g), but also has abundant functional groups containing carbon, oxygen, and nitrogen. Rhodamine B (RhB) was selected to evaluate the adsorption properties of the PCFH prepared under different conditions in dyeing wastewater. A fast adsorption rate was observed, and an uptake capacity of 765 mg g was achieved in the initial 5 min. The maximum adsorption capacity of PCFH to RhB reached 1912 mg g at the pH value of 9, which could efficiently remove RhB from the aqueous solution. The adsorption process was fitted better by a pseudo-second order model, and the adsorption isotherm for the RhB was well fitted by the Freundlich model. Moreover, the probable mechanism of adsorption was analyzed. In short, the good adsorption performance of PCFH indicated that it has a broad application prospect for dye water pollution control.
在本工作中，以真菌菌丝体（FH）为碳源，采用混合碱作为活化剂制备多孔碳材料（PCFH）。利用扫描电子显微镜（SEM）、氮气吸附/脱附、傅里叶变换红外光谱（FT-IR）、X射线衍射（XRD）、拉曼光谱和X射线光电子能谱（XPS）对PCFH的结构和表面性质进行了表征。结果表明，PCFH不仅具有巨大的比表面积（2480 m²/g），而且含有丰富的碳、氧和氮官能团。选用罗丹明B（RhB）来评估不同条件下制备的PCFH对印染废水的吸附性能。观察到快速的吸附速率，在最初5分钟内吸附量达到765 mg/g。在pH值为9时，PCFH对RhB的最大吸附量达到1912 mg/g，能够有效地从水溶液中去除RhB。吸附过程更符合准二级动力学模型，RhB的吸附等温线很好地符合Freundlich模型。此外，还分析了可能的吸附机理。简而言之，PCFH良好的吸附性能表明其在染料水污染控制方面具有广阔的应用前景。
