生物炭
吸附
吸附
傅里叶变换红外光谱
X射线光电子能谱
明胶
砷
热解
水溶液
扫描电子显微镜
核化学
化学工程
化学
材料科学
有机化学
复合材料
工程类
作者
Zan Zhou,Yunguo Liu,Shaobo Liu,Hongyu Liu,Guangming Zeng,Xiaofei Tan,Chunping Yang,Yang Ding,Yan Zhang,Xiaoxi Cai
标识
DOI:10.1016/j.cej.2016.12.113
摘要
A new environmentally friendly and low-cost adsorbent to remove As(V) from industry waste water was synthesized by the mixture of 723 K pyrolyzed chestnut shell and magnetic gelatin. The resultant biochar was characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Fourier transform infrared spectrometer (FT-IR) and vibrating sample magnetometer (VSM). Magnetic gelatin microsphere enlarged the specific surface area of pristine biochar so the modified biochar had more adsorption sites for arsenic(V) removal. Also, it had strong magnetic property so it could be easily separated from aqueous solution. Batch sorption experiment results showed that the maximum adsorption capacity was 45.8 mg g−1, which was higher than that of the unmodified (17.5 mg g−1) and some other biochar. All findings illustrated that this new material could be used to deal with arsenic(V)-containing waste water effectively.
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