吸附
X射线光电子能谱
材料科学
朗缪尔吸附模型
傅里叶变换红外光谱
比表面积
分析化学(期刊)
打赌理论
水溶液
衍射仪
扫描电子显微镜
亚甲蓝
拉曼光谱
碳纤维
核化学
化学工程
化学
有机化学
光催化
复合材料
工程类
物理
催化作用
光学
复合数
作者
Zhiwei Ying,Lu Huang,Lili Ji,Li He,Xinqi Liu,Chi Zhang,Jian Zhang,Guofu Yi
出处
期刊:Materials
[MDPI AG]
日期:2021-04-02
卷期号:14 (7): 1754-1754
被引量:9
摘要
Porous carbon material with high specific surface area was prepared from soybean dreg by a simple and effective two-step method (high temperature pyrolysis and activation). The structural characteristics of the synthesized carbon were evaluated by Brunauer–Emmett–Teller (BET), N2 adsorption/desorption measurements/techniques, an elemental analyzer (EA), scanning electron microscopy equipped with energy dispersive X-ray spectroscopy (SEM-EDS), transmission electron microscopy (TEM), an X-ray diffractometer (XRD), Raman spectroscopy (Raman), a Fourier transform infrared spectrometer (FTIR), and X-ray photoelectron spectroscopy (XPS). The specific surface area of SDB-6-K was 2786 m2 g−1, the pore volume was 2.316 cm3 g−1, and the average pore size was 3.326 nm. The high specific surface area and effective functional groups of carbon material promoted the adsorption of methylene blue. The maximum adsorption capacity of SDB-6-K to methylene blue was 2636 mg g−1 at 318 K. The adsorption kinetic and isotherm data were most suitable for pseudo-second-order and Langmuir equations. The results showed that the adsorbent had excellent adsorptive ability and had good practical application potential in the field of dye wastewater treatment in the future.
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