以花生壳和钛胶为原料,利用溶胶-凝胶法合成了花生壳改性TiO2晶体。以甲基橙为降解对象,研究花生壳改性TiO2的光催化性能,探讨了掺杂量、煅烧温度对光催化剂活性的影响。结果表明:采用溶胶-凝胶法制备的花生壳改性TiO2对甲基橙具有一定的光催化活性,能够将其降解;在100℃下煅烧,100mL钛胶掺杂1g花生壳所制得的催化剂对甲基橙的降解效果最佳,可见光光照2h,甲基橙降解率达到95.7%。
Peanut shells and titanic gel was used as raw materials to prepare peanut shells modified TiO2 crystal by sol-gel method.The visible light-degradation performance of methyl organge was studied to discuss the peanut shells' doping amount,calcination temperature whether exercised an influence on it.The results suggested that peanut shells modified TiO2 prepared via sol-gel method shown the photocatalytic activity for the decomposition of methyl orange:with the condition of being calcined at 100℃,peanut shells doping amount of 1g in 100mL titanic gel shown the best result.After simulated visible light-degradation for 2h,the methyl organge was degraded by 95.7%.
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