Highly Efficient Electrospun Silver Decorated Graphene Oxide Nanocomposites on Poly(vinylidene fluoride) (PVDF@GO-Ag) Hybrid Membrane for Reduction of 4-Nitrophenol
Xiaoben Yang,
Zhen He,
Lei Jin,
Huiyang Chen,
Qianglin Li,
Ling Wu,
Zhenghong Huang,
Mingxi Wang
Affiliations
Xiaoben Yang
Key Laboratory of Biomass-Based Materials for Environment and Energy in Petroleum & Chemical Industries, School of Chemical Engineering and Pharmacy, School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Zhen He
Key Laboratory of Biomass-Based Materials for Environment and Energy in Petroleum & Chemical Industries, School of Chemical Engineering and Pharmacy, School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Lei Jin
Key Laboratory of Biomass-Based Materials for Environment and Energy in Petroleum & Chemical Industries, School of Chemical Engineering and Pharmacy, School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Huiyang Chen
Key Laboratory of Biomass-Based Materials for Environment and Energy in Petroleum & Chemical Industries, School of Chemical Engineering and Pharmacy, School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Qianglin Li
Department of Material and Environmental Engineering, Chengdu Technological University, Chengdu 611730, China
Ling Wu
Hubei Province Key Laboratory of Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China
Zhenghong Huang
Key Laboratory of Advanced Materials Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Mingxi Wang
Key Laboratory of Biomass-Based Materials for Environment and Energy in Petroleum & Chemical Industries, School of Chemical Engineering and Pharmacy, School of Chemical and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China
Graphene oxide-silver poly(vinylidene fluoride) membranes (PVDF@GO-Ag) were successfully synthesized by the electrospinning method, which exhibited a high catalytic activity using the hydrogenation of 4-nitrophenol (4-NP) as a model reaction in a batch reaction study. The hybrid membranes doped with 1 wt% GO and 2 wt% Ag (PVDF-1-2) exhibited the most desired performance for the catalytic reduction of 4-NP. Importantly, PVDF-1-2 exhibited excellent cycling stability in 10 catalytic cycle tests and was highly amenable to separation. This property effectively addresses the significant challenges associated with the practical application of nanocatalysts. Furthermore, density-functional theory (DFT) calculations have demonstrated that the GO-Ag nanocomposites exhibit the strongest adsorption capacity for 4-NP− when a specific ratio of GO and Ag is achieved, accompanied by the loading of Ag nanoclusters onto GO. Additionally, the study demonstrated that an increase in temperature significantly accelerated the reaction rate, in line with the van’t Hoff rule. This study provides an effective and environmentally friendly solution for the treatment of 4-NP in wastewater.
