石墨烯/TiO_(2)功能材料对水体菌藻群落结构的影响研究  

Study on graphene/TiO_(2)functional materials on the community structure of algae and bacteria in environmental water

作　　者：陈荧 周艳文 仇健 许亮 李建宏[3] CHEN Ying;ZHOU Yanwen;QIU Jian;XU Liang;LI Jianhong(Jiangsu Shuangliang Environmental Technology Co.,Ltd.,Wuxi,214444,China;Nanjing Academy of Ecological and Environmental Protection Sciences,Nanjing,210008,China;College of Life Sciences,Nanjing Normal University,Nanjing,210023,China;College of Chemical Engineering,Nanjing University of Technology,Nanjing,211800,China)

机构地区：[1]江苏双良环境科技有限公司,江苏无锡214444 [2]南京市生态环境保护科学研究院,江苏南京210008 [3]南京师范大学生命科学学院,江苏南京210023 [4]南京工业大学化工学院,江苏南京211800

出　　处：《污染防治技术》2023年第5期49-54,共6页Pollution Control Technology

摘　　要：为探寻石墨烯/TiO_(2)功能材料对环境水体中菌藻群落结构的影响,在户外设置了环境水体培养实验,定量测定了藻类、细菌的种类和数量,分析了其群落结构和生物多样性变化。经过28天实验,结果表明:功能材料对藻类、细菌数量均有显著抑制作用,其中抑藻作用高达95%,但藻类多样性表现为增加。采用宏基因组测序法研究了水体中细菌群落结构的变化,结果显示功能材料对水体中细菌有选择性抑制效应,可显著地改变细菌的种类组成;细菌代谢功能基因丰度分析亦支持了石墨烯/TiO_(2)功能材料对细菌繁殖相关过程的显著抑制作用。数据结果综合证实了功能材料可通过改变水体浮游生物的组成,调控水体生态环境。In order to explore the effect of graphene/TiO_(2)functional materials on the community structure of algae and bacteria in environmental water,an environmental water culture experiment was set up outdoors,the species and quantity of algae and bacteria were measured quantitatively,and the community structure and biodiversity changes were analyzed.After 28 days of experiment,the results showed that the functional materials had a significant inhibitory effect on the number of algae and bacteria,of which the inhibitory effect was as high as 95%,but the diversity of algae was increased.The changes of bacteria community structure in water were studied by macrogenome sequencing method.The results showed that functional materials had selective inhibition effect on bacteria in water,which could significantly change the bacterial species composition;The analysis of bacterial metabolic function gene abundance also supports the significant inhibition of graphene/TiO_(2)functional materials on the process related to bacterial reproduction.The data and results confirmed that functional materials can regulate the water ecological environment by changing the composition of plankton in the water.

关 键 词：光催化材料 藻类组成 水体微生物 水生态 宏基因组 

分 类 号：X824[环境科学与工程—环境工程]