PMID- 34072183 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210714 IS - 2079-4991 (Print) IS - 2079-4991 (Electronic) IS - 2079-4991 (Linking) VI - 11 IP - 6 DP - 2021 May 27 TI - Carbothermal Synthesis of Ni/Fe Bimetallic Nanoparticles Embedded into Graphitized Carbon for Efficient Removal of Chlorophenol. LID - 10.3390/nano11061417 [doi] LID - 1417 AB - The reactivity of nanoscale zero-valent iron is limited by surface passivation and particle agglomeration. Here, Ni/Fe bimetallic nanoparticles embedded into graphitized carbon (NiFe@GC) were prepared from Ni/Fe bimetallic complex through a carbothermal reduction treatment. The Ni/Fe nanoparticles were uniformly distributed in the GC matrix with controllable particle sizes, and NiFe@GC exhibited a larger specific surface area than unsupported nanoscale zero-valent iron/nickel (FeNi NPs). The XRD results revealed that Ni/Fe bimetallic nanoparticles embedded into graphitized carbon were protected from oxidization. The NiFe@GC performed excellently in 2,4,6-trichlorophenol (TCP) removal from an aqueous solution. The removal efficiency of TCP for NiFe@GC-50 was more than twice that of FeNi nanoparticles, and the removal efficiency of TCP increased from 78.5% to 94.1% when the Ni/Fe molar ratio increased from 0 to 50%. The removal efficiency of TCP by NiFe@GC-50 can maintain 76.8% after 10 days of aging, much higher than that of FeNi NPs (29.6%). The higher performance of NiFe@GC should be ascribed to the significant synergistic effect of the combination of NiFe bimetallic nanoparticles and GC. In the presence of Ni, atomic H* generated by zero-valent iron corrosion can accelerate TCP removal. The GC coated on the surface of Ni/Fe bimetallic nanoparticles can protect them from oxidation and deactivation. FAU - Zhuang, Min AU - Zhuang M AD - School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China. AD - School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China. FAU - Shi, Wen AU - Shi W AD - School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China. FAU - Wang, Hui AU - Wang H AD - School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China. FAU - Cui, Liqiang AU - Cui L AD - School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China. FAU - Quan, Guixiang AU - Quan G AD - School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China. FAU - Yan, Jinlong AU - Yan J AD - School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China. AD - School of Environmental Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China. LA - eng GR - 22006127/National Natural Science Foundation of China/ GR - 21677119/National Natural Science Foundation of China/ GR - SJCX19_1041/Postgraduate Research & Practice Innovation Program of Jiangsu Province/ GR - KYCX20_2967/Postgraduate Research & Practice Innovation Program of Jiangsu Province/ PT - Journal Article DEP - 20210527 PL - Switzerland TA - Nanomaterials (Basel) JT - Nanomaterials (Basel, Switzerland) JID - 101610216 PMC - PMC8226776 OTO - NOTNLM OT - adsorption OT - chlorophenol OT - graphitized carbon OT - nanoscale zero-valent iron OT - reduction COIS- The authors declare no conflict of interest. EDAT- 2021/06/03 06:00 MHDA- 2021/06/03 06:01 PMCR- 2021/05/27 CRDT- 2021/06/02 01:34 PHST- 2021/04/09 00:00 [received] PHST- 2021/05/02 00:00 [revised] PHST- 2021/05/25 00:00 [accepted] PHST- 2021/06/02 01:34 [entrez] PHST- 2021/06/03 06:00 [pubmed] PHST- 2021/06/03 06:01 [medline] PHST- 2021/05/27 00:00 [pmc-release] AID - nano11061417 [pii] AID - nanomaterials-11-01417 [pii] AID - 10.3390/nano11061417 [doi] PST - epublish SO - Nanomaterials (Basel). 2021 May 27;11(6):1417. doi: 10.3390/nano11061417.