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将再生竹纤维加入氟钛酸铵与硼酸的混合溶液中,经水热法合成,得到纤维素/TiO_2复合材料。以紫外光为光源,研究纤维素/TiO_2复合材料对甲基橙水溶液的催化降解性能。通过FT-IR、XRD、SEM等对纤维处理前后进行化学结构和微观形貌表征,结果表明:TiO_2与纤维素形成的氢键等分子间作用力使TiO_2被吸附到纤维素表面上,复合材料出现528 cm~(-1)的O-Ti-O键的吸收峰。在紫外光照射60 min下,复合材料对甲基橙水溶液的光催化降解率为95.9%,与纯TiO_2相当;复合材料可反复降解甲基橙水溶液5次。本实验合成的复合材料为污水处理提供了一种简单、低成本、环境友好的方法。
The regenerated bamboo fiber was added to a mixed solution of ammonium tungstate and boric acid to synthesize the cellulose / TiO 2 composite by the hydrothermal method. UV light as a light source, cellulose / TiO 2 composites on the catalytic degradation of methyl orange aqueous solution. The chemical structure and microstructure of the fibers were characterized by FT-IR, XRD and SEM. The results showed that the intermolecular hydrogen bonds such as hydrogen bond formed between TiO 2 and cellulose adsorbed TiO 2 on the surface of cellulose, A 528 cm -1 O-Ti-O bond appears. Under UV irradiation for 60 min, the composite photocatalytic degradation rate of methyl orange aqueous solution was 95.9%, which was equivalent to pure TiO 2. The composite material could degrade methyl orange aqueous solution five times repeatedly. The composites synthesized in this experiment provide a simple, low-cost and environment-friendly method for wastewater treatment.