【作者】 郝绍芳；

【导师】 何瑾馨；

【作者基本信息】 东华大学 ， 纺织化学与染整工程， 2010， 硕士

【摘要】 水环境污染已成为全球性普遍关注的重要课题。随着印染行业的不断发展,其排放的印染废水具有水量大、色度高、可生化性差、组分复杂等特点,传统的废水处理方法很难经济有效地进行处理。利用光催化氧化技术处理水中难降解有机污染物的方法已经引起了国内外水处理专家的广泛关注。四磺酸铁酞菁作为一种低能耗,高效率的光催化剂,具有可见光响应范围宽、催化效率高、不易受外界干扰、光热稳定性好等特点,将其用于处理印染废水,从环境可持续发展角度来看,具有十分重要的意义。在本课题中,我们首先通过苯酐-尿素路线,以邻苯二甲酸酐、金属盐、尿素为原料,以钼酸铵为催化剂,用固相法合成了铁酞菁(FePc),并用浓硫酸沉淀法提纯产物,铁酞菁(FePc)经氯磺酸磺化后制备得到具有四个磺酸基的水溶性酞菁化合物四磺酸铁酞菁(FePcS),采用凯式定氮法、红外对最终合成产物的结构进行表征,证明四磺酸铁酞菁已经成功合成。将四磺酸铁酞菁(FePcS)通过负载技术负载于改性纤维素纤维上,制备得到水溶性铁酞菁负载型催化纤维(FePcS-F),然后将该负载光催化剂应用于可见光下催化降解印染废水,基于光催化氧化理论,以典型商品染料活性红K-2G为研究对象,开展光催化氧化降解模拟染料废水的实验研究,探讨分析了影响光催化氧化降解效果的基本因素、工艺条件以及光降解产物等方面内容。更多还原

【Abstract】 Environmental contamination in groundwater involving a variety of nonbiodegradable toxic organic pollutants from industrial effluents is a matter of concern. With the development of textile industry, the amount of discharged wastewater in dyeing and printing industry is very high and could not be treated effectively with traditional methods for its deep color, poor biochemical degradation and complicated components.Photocatalytic oxidation technology has been successfully used to degrade the organic pollutants in wastewater and many water treatment experts pay more attention to study the photocatalytic oxidation technology. Iron phthalocyanine sulfonates（FePcS） can response to a wide range of visiblelight high catalytic efficiency and optical characteristics of a good thermal stability, FePcS as a low-power, high-efficiency catalyst for the treatment of dyeing effluent, has a prefect perspective usage in the field of photo-degradation of dyeing effluent.This paper used phthalicanhydride、metal-salt、carbamide as raw materials, used （NH₄）₂Mo as catalyzer for the synthesis of Iron phthalocyanine （FePc） by the way of solid phrase. And then use chlorosulfonic acid synthesized Iron phthalocyanine quasulfonates. Produets were characterized by FT-IR and the nitrogen content was determined by the micro-Kjeldahl method. By those methods it proved that the FePcS was successfully synthesized.Then the Iron phthalocyanine quasulfonates were supported by modified cellulose fibers in acidic condition to obtain loading FePcS fibers （FePcS-F）, and then used as a heterogeneous catalyst for the photocatalytic degradation of Reactive Red K-2G in water. Base on the photocatalytic oxidation theory, regard the representative merchandise dyes reactive red K-2G as the object, we developed the researches of photocatalytic oxidation degradation of dye effluent Some basic factors including the condation of processing and the products of photocatalytic oxidation affecting the degradation of Reactive Red K-2G were investigated with respect to the decoloration rate.更多还原