Using the plasticity of gold nanoparticles, Professor Liang Feng's research group controllably prepared star-shaped gold-palladium bimetallic nanoparticles with low palladium content. Through a series of characterization of the intermediate products of Au-Pd bimetallic nano-star, a "two-step" growth mechanism of Au-Pd nano-star is proposed, that is, a single metallic Au nano-ball is formed first, and then a bimetallic Au-Pd nano-star is formed with this as the core. Due to the addition of palladium in nanoparticles, nanoparticles can not only effectively catalyze the reduction of p-nitrophenol (industrial waste) to p-aminophenol (industrial raw material), but also effectively catalyze Suzuki coupling reaction, thus realizing the multifunctional catalyst. The research result "Au-PD Nanostar with Low PD Content: Controllable Preparation and Significant Catalytic Performance" was published in the Journal of Physical Chemistry. Ma Tao, 20 17 doctoral student, School of Chemistry and Chemical Engineering, is the first author of this paper.
Controllable Preparation and Multifunctional Catalytic Schematic Diagram of Au-Pd Bimetallic Nanoparticles
Graphene aerogels were introduced into poly (N- isopropylacrylamide) network doped with poly-dopamine nanoparticles (PDA-NPs), and multifunctional hydrogels were prepared by Professor Liang Feng's research group in cooperation with Han Dong Research Group of National Nanoscience Center. The prepared hydrogel not only has enhanced mechanical properties, good electrical conductivity and self-adhesion, but also shows dual response properties of near infrared and temperature, and can release drugs as needed. In addition, the resistance of hydrogel changes with the drug release process, so the drug release concentration can be monitored in real time by using the resistance change. This makes it have potential application value in the fields of drug controlled release and precision medicine. The research achievement "Temperature/Near Infrared Response Conductive Hydrogels for Drug Controlled Release and Real-time Monitoring" was published in the journal Nanoscale. Zhu Yuting, 20 16 doctoral student, School of Chemistry and Chemical Engineering, is the first author of this paper.
In the practical application of pesticides, promoting the spreading and deposition of chemical spray on target crops is of great significance to improve the efficiency of pesticide use and reduce the impact on the environment. Column [n] arene is a new type of macrocyclic supramolecular host. Compared with the traditional macrocyclic structure, columnar aromatic hydrocarbons have highly symmetrical rigid skeleton structure, unique electron-rich holes and easy derivatization, which show important application value in supramolecular chemistry. Professor Liang Feng's research group cooperated with Professor Li Haibing's research group of Huazhong Normal University, and successfully realized the spreading and deposition of pesticide molecule chlormequat on hydrophobic surface by using the host-guest interaction between column aromatic hydrocarbons and pesticide molecules, and showed excellent selectivity. This study explores the application of supramolecular chemistry in agriculture, which has guiding significance for the fine utilization of pesticides. The research result "Pillar [5] arena promotes the selective spreading of chloroformate droplets on hydrophilic surfaces" was published in Langmuir magazine. Yu Sheng, a 20 17 graduate student from School of Chemistry and Chemical Engineering, is the first author of this paper.
In addition, the research paper "Preparation of One-dimensional Nitrogen-doped Carbon-coated Titanium Dioxide Nanocube Arrays by Template Carbonization without Catalyst" co-authored by Wang Jiao, a graduate student of the team, was published in the journal of Applied Surface Science. The research paper "Preparation of Supramolecular Hydrogels with Hybrid Microspheres with High Mechanical Strength Mediated by Host-guest Interaction" by postdoctoral Zhang (co-tutor professor) was published in the journal Soft Matter.
The first unit of the above paper is the State Key Laboratory of Refractory and Metallurgy established by Wuhan University of Science and Technology. The research work is supported by the National High-level Talents Program, the National Natural Science Foundation, the Chutian Scholars Program of Hubei Province, the outstanding young and middle-aged scientific and technological innovation team project of Hubei universities, the State Key Laboratory of Refractory and Metallurgy set up by the Provincial Department, the Hubei Key Laboratory of Coal Conversion and New Carbon Materials, and the excellent doctoral thesis training project of Wuhan University of Science and Technology.
From Wuhan University of Science and Technology
Paper link
https://doi . org/ 10. 102 1/ACS . jpcc . 0c 0003 1
https://doi.org/ 10. 1039/D0NR0 1736A
https://doi . org/ 10. 102 1/ACS . Langmuir . 9b 0396 1
https://doi . org/ 10. 10 16/j . APS USC . 2020. 14530 1
https://doi.org/ 10. 1039/D0SM0027 1B