Cobalt tetrasulfophthalocyanine (CoPcS) was synthesized, characterized by matrix-assisted laser de-sorption/ionization time of flight mass spectra (TOF-MS), Fourier transform infrared spectra(FTIR) and ul-traviolet and visible spectra (UV-Vis). CoPcS modified by cyanuric chloride was supported onto silk fibers(SF) to obtain a novel supported catalyst (CoPcS-SF). The catalytic oxidation activity for acid orange Ⅱ (AO2) was investigated in the presence of H2O2. The experimental results showed that AO2 could be efficiently decom-posed in CoPcS-SF and H2O2, and more than 97% of AQ2 in 60 min was eliminated at initial pH 7. Moreover, CoPcS-SF could be recycled. The effects of pH, the electrolyte of NaCl and temperature indicated the reaction could efficiently proceed in a wide pH range from 3 to 9, and the reaction rate could be obviously enhanced when NaCl was present, increasing with the elevation of the temperature. FT-IR and gas chromatography/mass spec-trometry (GC-MS) analysis showed that AO2 was mainly oxidized into some small molecular biodegradable ali-phatic carboxylic compounds such as maleic acid, fumaric acid, succinic acid, etc.%合成了四磺酸基钴酞菁(CoPcS),采用基质辅助激光解析电离飞行时间质谱(MALDI TOFMS)、紫外-可见光谱(UV-Vis)和傅里叶变换红外光谱(FT-IR)对其进行表征,然后通过三聚氯氰改性将其负载到蚕丝纤维(SF)上,制得了新型蚕丝纤维负载钴酞菁催化剂(CoPcS-SF).以H2O2为氧化剂,考察了CoPcS-SF对酸性橙Ⅱ(AO2)的催化氧化性能,结果表明,在中性条件下,CoPcS SF能高效催化氧化AO2,反应60min后AO2的去除率可达97％以上,并且具有较好的重复使用性.考察了pH值、电解质NaCl和温度对CoPcS-SF催化性能的影响,结果表明,CoPcS-SF在pH值3～9较宽范围内均具有较高催化活性；NaCl对催化AO2有促进作用；催化活性随反应温度升高而增强.FT-IR和气质联用(GC-MS)对AO2的降解产物分析表明,AO2的主要产物为顺丁烯二酸、反丁烯二酸和丁二酸等小分子可生物降解脂肪酸.
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