摘要
首先采用溶胶-凝胶法制备二氧化钛(TiO_(2)),再采用煅烧和超声法制备g-C_(3)N_(4)/TiO_(2),最后以四环素为目标物探究g-C_(3)N_(4)/TiO_(2)的光催化性能。采用单因素的实验方法,首先得出了TiO_(2)最佳制备工艺为煅烧温度600℃、煅烧时间3.5 h、烘干温度120℃;其次确定了制备g-C_(3)N_(4)/TiO_(2)的最佳掺杂比为5%;最后得到了g-C_(3)N_(4)/TiO_(2)光催化四环素的最佳工艺条件为紫外灯照射120 min条件下,催化剂投加量1.0 g/L、四环素初始浓度5 mg/L时四环素降解率为99.63%。
Titanium dioxide(TiO_(2))was prepared by sol-gel method and g-C_(3)N_(4)/TiO_(2)was prepared by calcination and ultrasonic method.Tetracycline was used as the target to explore the photocatalytic performance of g-C_(3)N_(4)/TiO_(2).Using a single factor experimental method,the optimal preparation process for TiO_(2)was first obtained as follows:calcination temperature of 600℃,calcination time of 3.5 hours,and drying temperature of 120℃.The optimal doping ratio for preparing g-C_(3)N_(4)/TiO_(2)was determined to be 5%.The optimal process conditions for g-C_(3)N_(4)/TiO_(2)photocatalysis of tetracycline were obtained.Under the condition of ultraviolet lamp irradiation for 120 minutes,the degradation rate of tetracycline was 99.63%when the catalyst dosage was 1.0 g/L and the initial concentration of tetracycline was 5 mg/L.
作者
李思航
刘双易
杨天一
车春波
李俊生
Li Sihang;Liu Shuangyi;Yang Tianyi;Che Chunbo;Li Junsheng(School of Food Science and Engineering,Harbin University of Commerce,Harbin 150028,China)
出处
《环境科学与管理》
CAS
2023年第9期110-113,共4页
Environmental Science and Management
基金
大学生创新创业训练计划项目(202110240119)。
