氧基电解质La_(10-x)V_x(SiO_4)_6O_(3+x)的制备及性能测试(英文)

Apatite-lanthanum silicate has attracted considerable interest in recent years due to its high oxide ion conductivity.In this paper,V-doped samples La10-xVx(SiO4) 6O3+x(0≤x≤1.5) were prepared by sol-gel method and the influences of V-dopant content on calcining temperature and conductivity were reported.The samples were characterized by thermal analysis(TG-DSC) ,X-ray diffraction(XRD) and scanning electron micrograph(SEM) . The apatite was obtained at 800°C,a relatively low temperature in comparison to 1500°C with the conventional solid-state method.The ceramic pellets sintered at 1200°C for 5 h showed a higher relative density than La9.33Si6O26 pellets sintered at 1400°C for 20 h.The conductivities of samples were measured by electrochemical impedance spectroscopy.The conductivity was improved with the increase of V-dopant content on La site.     

电石渣在含铬废水处理中的应用

以XX公司含铬废水在传统化学沉淀法较难絮凝沉淀的情况为例,介绍电石渣在含铬废水处理中的应用情况及存在的问题。通过电石渣在污水处理方面的应用,一方面利用电石渣的特性解决电镀废水絮凝沉淀的难题,变废为宝;另一方面解决湿法制乙炔工艺中产生的电石渣造成的环境污染问题。