Citation: CAI Yun, WU Qiong, FU Cheng, YU Yan. Study on the Structures and Properties of Copper Removal Adsorbent Prepared from Sinter-free Pulverized Oyster Shell Materials[J]. Chinese Journal of Structural Chemistry, ;2014, 33(2): 263-269. shu

Study on the Structures and Properties of Copper Removal Adsorbent Prepared from Sinter-free Pulverized Oyster Shell Materials

1.
College of Materials Science and Engineering, New Campus of Fuzhou University, Fuzhou 350108, China

Received Date: 19 August 2013
Available Online: 25 November 2013
Fund Project: Sponsored by the National Natural Science Foundation of China (No.51102047) (No.51102047)Fujian Science Foundation for Distinguished Young Scholars (2012J06011) (2012J06011)

A hollow tubular copper removal adsorbent was prepared with oyster shell and cement as the main raw materials. The effects of different formulas, different initial copper concentrations and different pH values of samples on the copper removal efficiency were investigated to determine the optimal conditions for copper removal. The content of copper in the wastewater is determined by Atomic Absorption Spectrophotometer. The microstructure and elemental composition of the samples were characterized by scanning electron microscopy (SEM) and EDS. As a result, the formula with the content of cement to be 8 wt% and the oyster shell powder of 92 wt% is optimal. Under the condition of 30℃, when the pH value was 9.0, the Cu²⁺ adsorption capacity of the sample could reach 0.59 mg/g at 48 h. SEM analysis revealed that there are abundant pores in the sample, which is beneficial for Cu²⁺ absorption on the adsorbent.
- portland cement,
- oyster shell powder,
- copper removal,
- sinter-free
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