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炼油碱渣废水是一种含有大量有毒有机物质的碱性废水。目前,关于这种碱性废水的处理工艺还不成熟,直接利用废水来合成功能材料的报道也很少。由于炼油碱渣废水中的硫化物可以提供硫源,碱性环境有利于纳米结构成核生长。基于此,本文通过一种简单的水热法合成了ZnO/ZnS纳米复合材料,同时还考虑了水热过程中pH值对ZnO/ZnS纳米复合物形貌和性能的影响。光催化降解甲基橙实验表明,材料在200 min内将20 mg/L的染料基本降解完。
Refining caustic wastewater is a kind of alkaline wastewater containing a large amount of toxic organic substances. At present, the treatment process of this alkaline wastewater is not yet mature, and there are few reports on the direct use of wastewater to synthesize functional materials. Sulfide in refinery caustic wastewater can provide sulfur source, and the alkaline environment is conducive to the nucleation and growth of nanostructures. Based on this, ZnO / ZnS nanocomposites were synthesized by a simple hydrothermal method, and the effect of pH value on the morphology and properties of ZnO / ZnS nanocomposites was also considered. Photocatalytic degradation of methyl orange experiments show that the material within 20 min 20 mg / L of the dye end of the basic degradation.