Adsorption of Chromium (Ⅵ) from Aqueous Solutions with Corncob

摘要：

　　Corncob,an agricultural solid waste,was used as biosorbent for the removal of chromium(Ⅵ).Variables of the batch experiments includind solution pH,Cr(Ⅵ) concentration and particle size were conducted.FT-IR spectra of the adsorbents (before use and after exhaustion) were recorded to explore number and position of the functional groups available for the binding of chromium ions on to studied adsorbents.SEM of the adsorbents was recorded to explore the morphology of the studied adsorbents.X-ray photoelectron spectroscopy (XPS) study revealed that the mechanism of Cr(Ⅵ) biosorption with corncob was its complete reduction into Cr(Ⅲ) and partial binding of the reduced-Cr(Ⅲ).

关键词： adsorbent corncob chromium(Ⅵ) reduction

作者: WU Ying

作者单位: Department of Chemical and Material Engineering, Hefei University, Hefei 230022, China

会议类型: 国际会议

会议名称: The 4th International Conference on Environmental Technology and Knowledge Transfer(第四届亚欧环境技术及知识转化国际研讨会(2012ICET))

会议地点: 合肥

会议语种:英文

页码: 596-600

在线出版日期: 2012-05-24（万方平台首次上网日期，不代表论文的发表时间）