Ni-Mn双金属氧化物微马达用于高效染料吸附  

Micromotors Based on Ni-Mn Binary Oxide and Its Application for Effective Dye Adsorption

作　　者：黄婧 陈慧君 冯晓苗 HUANG Jing;CHEN Hui-Jun;FENG Xiao-Miao(Key Laboratory for Organic Electronics and Information Displays&Institute of Advanced Materials(IAM),School of Materials Science&Engineering,Nanjing University of Posts&Telecommunications,Nanjing 210023,China)

机构地区：[1]南京邮电大学材料科学与工程学院,省部共建有机电子与信息显示国家重点实验室,信息材料与纳米技术研究院,南京210023

出　　处：《无机化学学报》2022年第7期1411-1420,共10页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.62174087);有机电子与信息显示协同创新中心、江苏省生物传感材料与技术重点实验室、江苏省优势学科建设项目(No.YX03001)资助。

摘　　要：通过水热结合高温退火的方法制备了一种Ni-Mn双金属氧化物微马达,所得Ni-Mn双金属氧化物具有针刺状空心结构,可作为马达材料。该Ni-Mn双金属氧化物微马达在燃料(H_(2)O_(2))质量分数仅为1%时显示出很强的驱动能力,运动速度为83.75μm·s^(-1),寿命高于90 min。即使在H_(2)O_(2)质量分数低至0.4%时,该马达仍具有优异的自主运动。由于镍氧化物的存在,该马达可通过磁场控制实现定向运动。得益于优异的催化性能和磁性,该Ni_(6)MnO_(8)马达可在160 s内有效去除亚甲基蓝,且没有二次污染。A kind of binary Ni-Mn oxide(Ni_(6)MnO_(8)) micromotors were prepared by hydrothermal method followed by high-temperature annealing. The obtained binary Ni-Mn oxides showed obvious needle-punched shapes and hollow structures that can be used as micromotors. These binary Ni-Mn oxide micromotors displayed powerful propulsion at a low fuel level(H_(2)O_(2)mass fraction: 1%), with a speed of over 83.75 μm·s^(-1) and a long lifetime of up to 90 min.Even in an extremely low mass fraction of H_(2)O_(2)(0.4%), the micromotors could also perform excellent autonomous locomotion. Due to the presence of Ni oxide, the micromotors could perform the directional movement by magnetic manipulation. Benefiting from excellent catalytic and magnetic properties, the obtained Ni_(6)MnO_(8) micromotors could effectively remove methylene blue within 160 s by adsorption without secondary pollution.

关 键 词：Ni-Mn双金属氧化物 亚甲基蓝 吸附 微马达 环境修复 

分 类 号：TB34[一般工业技术—材料科学与工程] O614.813[理学—无机化学] O614.711[理学—化学]