Adsorption and Preconcentration Capabilities of Porous Nano-barium-strontium Titanate for Nickel in Water

摘要：

The adsorption capability of porous nano-bariumstrontium titanate by sorghum straw template method (SBST) for nickel in water was studied. The optimum experimental parameters for the adsorption and preconcentration of the nickel, such as pH, time, eluent and coexisting ion, have been investigated. The results showed that the nickel in water could be adsorbed on the SBST. The adsorbed quantitively was affected by the pH value of medium and time. In the medium of pH 5-8, the adsorption time was 20 min, and capacity of adsorption was 13.27 mg·g~(-1). The adsorbed nickel could be completely eluated using 2 mol·L~(-1) HNO_3. The pre-concentration factor for nickel was more than 100. The method has been applied to the preconcentration and flame atomic absorption spectrometry determination of nickel in water samples. The recoveries were 92.0％-104.0％.

关键词： porous nano-barium-strontium titanate adsorption preconcentration nickel Flame atomic absorption spectrometry environmental water

作者: Dong Zhang

作者单位: School of Environmental and Chemical Engineering Shenyang Ligong University Shenyang 110159, P. R. China

会议类型: 国际会议

会议名称: 2010 6th International Conference on MENS NANO,and Smart System(2010年微机电纳米、智能系统国际会议 ICMENS 2010)

会议地点: 长沙

会议语种:英文

页码: 376-379

在线出版日期: 2010-12-14（万方平台首次上网日期，不代表论文的发表时间）