{001}TiO2的除氨抗菌性能研究
Preparation of {001}TiO2 and its ammonia removal and antimicrobial properties
投稿时间:2020-04-22  
DOI:
中文关键词:  {001}TiO2  抗菌  除氨  理论依据
英文关键词:{001}TiO2  Anti-bacterial  Ammonia removal  Theoretical basis
基金项目:重庆市技术创新与应用示范专项社会民生类重点研发项目(cstc2018jscx-mszdX0045);国家生猪产业技术体系(CARS-35)
作者单位E-mail
朱佳明 重庆市畜牧科学院, 重庆 荣昌 402460
农业农村部西南养殖工程科学观测实验站, 重庆 荣昌 402460 
 
蒲施桦 重庆市畜牧科学院, 重庆 荣昌 402460
农业农村部西南养殖工程科学观测实验站, 重庆 荣昌 402460 
pu88962@126.com 
龙定彪 重庆市畜牧科学院, 重庆 荣昌 402460
农业农村部西南养殖工程科学观测实验站, 重庆 荣昌 402460 
 
王浩 重庆市畜牧科学院, 重庆 荣昌 402460
农业农村部西南养殖工程科学观测实验站, 重庆 荣昌 402460 
 
曾雅琼 重庆市畜牧科学院, 重庆 荣昌 402460
农业农村部西南养殖工程科学观测实验站, 重庆 荣昌 402460 
 
简悦 重庆市畜牧科学院, 重庆 荣昌 402460
农业农村部西南养殖工程科学观测实验站, 重庆 荣昌 402460 
 
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中文摘要:
      采用溶胶-凝胶法在低温条件下制备出{001}TiO2光催化剂,分别以大肠杆菌和氨气为目标污染物,考察所制备催化剂的抗菌除氨性能,为其在养殖应用上提供一定的理论依据。结果表明:所制备催化剂是由5 nm左右的小颗粒堆积而成,含有40.1%的高活性{001}面,这种{001}面与催化剂自身的{101}面形成异质结构,加速了光生载流子分离,展现出优异的催化性能。{001}TiO2在太阳光和紫外光下对氨气降解率分别为32.7%、61.3%,分别是TiO2的3.08倍、2.21倍,在日光灯下{001}TiO2对大肠杆菌的抑菌圈为32.1 mm,远高于TiO2
英文摘要:
      The {001}TiO2photocatalyst was prepared by sol-gel method at low temperature. The antibacterial and ammonia removal properties of the prepared catalyst were investigated by taking Escherichia coli and ammonia as the target pollutants respectively, providing a theoretical basis for its application. The results showed that the catalyst was made up of small particles at about 5nm and contained 40.1% highly active {001} surface which formed a heterostructure with the {101} surface of the catalyst itself, accelerated the separation of photocarriers and showed excellent catalytic performance. The degradation rates of {001} TiO2 to ammonia under sunlight and ultraviolet light were 32.7 and 61.3%, respectively, which were 3.08 and 2.21 times of TiO2. The inhibition zone of {001} TiO2 to Escherichia coli under fluorescent light was 32.1mm, much higher than that of TiO2.
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