炉渣制光催化剂催化降解水中罗丹明B的研究

以废弃的钢铁冶炼炉渣为原料制备了光催化剂GN,并对其进行了X衍射、紫外-可见漫反射吸收光谱、比表面积及孔径分布等物性测试,通过在三相内循环流化床光催化反应器中对罗丹明B废水进行处理,确定了GN的最佳光催化氧化条件.将GN与传统的光催化剂TiO2作比较,结果表明,GN不仅具备较高的光催化活性,而且成本更低,为钢铁冶炼炉渣的循环再利用提供了一种新思路,同时也为光催化氧化技术的工业化应用提供了一条新颖、经济、可行的途径.

Study on degradation of rhodamine B in water with photocatalyst prepared by Ti-bearing slag

The new photocatalyst GN was prepared by metallurgy furnace slag. Zeta potential coupled with XRD ,UV-vis absorption spectrum, specific surface area and pore size distribution was used to investigate the physical aspects and chemical components of this photocatalyst. And the optimum photocatalystic and oxidizing condition was obtained by treating rhodamine B sample in the novel gas-liquid-sludge photocatalysis reactor. Compared with present traditional photocatalyst TiO₂,the analysis of economical factors proved that GN has high catalytic activity and is much cheaper. This technique offeres a new way to reuse the abandoned metallurgy furnace slag as well as a novel, economic and feasible method of applying photocatalystic in industrialisation.