Статья

Enhanced Catalytic Reduction of 4-Nitrophenol Driven by Fe3O4-Au Magnetic Nanocomposite Interface Engineering: From Facile Preparation to Recyclable Application

Yue ChenCollege of Physics, Jilin Normal University, Siping 136000, ChinaYuanyuan ZhangCollege of Physics, Jilin Normal University, Siping 136000, ChinaQiangwei KouCollege of Physics, Jilin Normal University, Siping 136000, ChinaYang LiuCollege of Physics, Jilin Normal University, Siping 136000, ChinaDonglai HanSchool of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, ChinaDandan WangTechnology Development Department, GLOBALFOUNDRIES (Singapore) Pte. Ltd., 60 Woodlands Industrial Park D, Street 2, Singapore 738406, SingaporeYantao SunCollege of Physics, Jilin Normal University, Siping 136000, ChinaYongjun ZhangCollege of Physics, Jilin Normal University, Siping 136000, ChinaYaxin WangCollege of Physics, Jilin Normal University, Siping 136000, ChinaZiyang LuSchool of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, ChinaLei ChenCollege of Physics, Jilin Normal University, Siping 136000, ChinaJinghai YangCollege of Physics, Jilin Normal University, Siping 136000, ChinaScott Guozhong XingUnited Microelect Corp. Ltd., 3 Pasir Ris Dr 12, Singapore 519528, Singapore

2018en

ABI

Аннотация

In this work, we report the enhanced catalytic reduction of 4-nitrophenol driven by Fe₃O₄-Au magnetic nanocomposite interface engineering. A facile solvothermal method is employed for Fe₃O₄ hollow microspheres and Fe₃O₄-Au magnetic nanocomposite synthesis via a seed deposition process. Complementary structural, chemical composition and valence state studies validate that the as-obtained samples are formed in a pure magnetite phase. A series of characterizations including conventional scanning/transmission electron microscopy (SEM/TEM), Mössbauer spectroscopy, magnetic testing and elemental mapping is conducted to unveil the structural and physical characteristics of the developed Fe₃O₄-Au magnetic nanocomposites. By adjusting the quantity of Au seeds coating on the polyethyleneimine-dithiocarbamates (PEI-DTC)-modified surfaces of Fe₃O₄ hollow microspheres, the correlation between the amount of Au seeds and the catalytic ability of Fe₃O₄-Au magnetic nanocomposites for 4-nitrophenol (4-NP) is investigated systematically. Importantly, bearing remarkable recyclable features, our developed Fe₃O₄-Au magnetic nanocomposites can be readily separated with a magnet. Such Fe₃O₄-Au magnetic nanocomposites shine the light on highly efficient catalysts for 4-NP reduction at the mass production level.

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Идентификаторы

DOI: 10.3390/nano8050353

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar