Facile Synthesis of Ag/Pd Nanoparticle - Loaded Poly(ethylene imine) Composite Hydrogels with Highly Efficient Catalytic Reduction of 4-Nitrophenol

Yao Feng; Juanjuan Yin; Shufeng Liu; Yuying Wang; Bingfan Li; Tifeng Jiao

doi:10.1021/acsomega.9b04408

Facile Synthesis of Ag/Pd Nanoparticle - Loaded Poly(ethylene imine) Composite Hydrogels with Highly Efficient Catalytic Reduction of 4-Nitrophenol

ACS Omega. 2020 Feb 14;5(7):3725-3733. doi: 10.1021/acsomega.9b04408. eCollection 2020 Feb 25.

Authors

Yao Feng^{1

2}, Juanjuan Yin¹, Shufeng Liu³, Yuying Wang⁴, Bingfan Li⁵, Tifeng Jiao^{1

2}

Affiliations

¹ Hebei Key Laboratory of Applied Chemistry, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, P. R. China.
² State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, P. R. China.
³ Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, 53 Zhengzhou Road, Qingdao 266042, P. R. China.
⁴ School of Information Science and Engineering, Yanshan University, Qinhuangdao 066004, P. R. China.
⁵ Shandong Key Laboratory of Oil & Gas Storage and Transportation Safety, China University of Petroleum (East China), Qingdao 266580, P. R. China.

Abstract

Poly(ethylene imine) (PEI) has abundant amino groups in a macromolecular chain and can be used as a graft source for metal nanocomposites, which shows excellent ability to form stable complexes with heavy metal ions. In this work, a simple and convenient method was used to make PEI into a stable hydrogel with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide-N-hydroxysuccinimide and subsequently coprecipitate with silver nitrate solution or palladium chloride solution to form metal-loaded composite hydrogels. In addition, the characterizations of composite hydrogels were investigated by scanning electron microscopy, specific surface area tests (Brunauer-Emmett-Teller), X-ray photoelectron spectroscopy, and ultraviolet spectroscopy. The properties of composite hydrogels on the catalytic reduction of 4-nitrophenol were studied. The results showed that the composite hydrogels could be easily separated from the water environment, which indicated the large-scale potential application in organic catalytic degradation and wastewater treatment.