摘要
以农业废弃物荞麦壳与硫酸亚铁为原料,通过原位炭化还原法一步制备复合多孔炭材料。采用XRD、SEM等表征手段,考察了所得材料的物化性能。考察硫酸亚铁浓度、炭化温度和Cr(Ⅵ)水溶液pH值对Cr(Ⅵ)去除性能的影响。结果表明,制备的样品为负载FeS/Fe2O3/Fe3O4的无定形多孔炭。样品在pH=2时表现出优良的Cr(Ⅵ)去除性能;在相同pH值的Cr (Ⅵ)溶液中,浸渍荞麦壳粉的FeSO4浓度越高、样品焙烧温度越高,所得FeS/Fe2O3/Fe3O4荞麦壳基多孔炭对Cr(Ⅵ)去除量越大。
Composite porous carbon was prepared by an insitu carbonization reduction method using agricultural waste buckwheat shell as the carbon precursor and ferrisulfas as the ironsource. The physicochemical properties of the obtained materials were investigated by means of XRD and SEM. The effects of ferrous sulfate concentration,carbonization temperature and pH value of Cr(Ⅵ) aqueous solution on the removal of Cr(Ⅵ) were investigated. The results show that the sample prepared is amorphous carbon loaded with FeS/Fe2O3/Fe3O4. The samples showed excellent Cr(Ⅵ) removal performance at pH = 2. In the same pH value of Cr(Ⅵ) solution,the higher the impregnation concentration of FeSO4 and the higher the calcination temperature,the greater the removal of Cr(Ⅵ) by FeS/Fe2O3/Fe3O4 buckwheat shellbased porous carbon.
作者
赵红建
赵文霞
张卓
马富
ZHAO Hong-jian;ZHAO Wen-xia;ZHANG Zhuo;MA Fu(College of Chemistry and Chemical Engineering,Ningxia Normal University,Guyuan 756000,China;Qingtongxia Senior High School,Wuzhong 751100,China)
出处
《应用化工》
CAS
CSCD
北大核心
2019年第6期1283-1286,共4页
Applied Chemical Industry
基金
国家自然科学基金(21561027)
宁夏师范学院科学研究项目(NXSFZDC1806)
关键词
荞麦壳
硫酸亚铁
复合多孔炭
buckwheat shell
ferrous sulfate
composite porous carbon
作者简介
赵红建(1978-),女,山东泰安人,宁夏师范学院副教授,硕士,主要从事纳米材料及天然产物利用的研究。电话:13519547262,E-mail:zhhjmf2005@163.com
