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研究了Ti O2/竹炭复合材料在紫外光作用下对直接耐酸大红4BS的催化降解情况。结果表明,Ti O2含量为48.34%的复合材料对直接耐酸大红4BS的光催化降解效果最好。在紫外灯光照射下,复合材料投加量为120~160 g/L时,对100 mg/L的直接耐酸大红4BS溶液可达到良好的降解效果;p H越小,降解率越好,在p H值为0.38时,对100 mg/L的直接耐酸大红4BS溶液的降解率达99.14%;随直接耐酸大红4BS浓度的升高,降解率先升高后降低;随时间的延长,降解率升高。复合材料对直接耐酸大红4BS的光催化降解符合反应一级动力学方程。
The catalytic degradation of direct acid-fast red 4BS by Ti O2 / bamboo charcoal composite under ultraviolet light was studied. The results showed that the photocatalytic degradation of direct acid-fast red 4BS was the best when the content of Ti O2 was 48.34%. Under ultraviolet light irradiation, when the composite dosage was 120 ~ 160 g / L, the direct acid-fast red 4BS solution with 100 mg / L could achieve a good degradation effect; the smaller the pH value, the better the degradation rate in p When the value of H was 0.38, the degradation rate of direct acid-fast red 4BS solution of 100 mg / L was 99.14%. The degradation rate increased first and then decreased with the increase of direct acid-fast red 4BS concentration. With the extension of time, the degradation rate increased . The photocatalytic degradation of direct acid-fast red 4BS complied with the reaction first-order kinetic equation.