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Performance of bimetallic nanoscale zero-valent iron particles for removal of oxytetracycline.
J Environ Sci (China). 2018 Jul; 69:173-182.JE

Abstract

In this study, bimetallic nanoscale zero-valent iron particles (nZVI), including copper/nanoscale zero-valent iron particles (Cu/nZVI) and nickel/nanoscale zero-valent iron particles (Ni/nZVI), were synthesized by one-step liquid-phase reduction and applied for oxytetracycline (OTC) removal. The effects of contact time and initial pH on the removal efficiency were studied. The as-prepared nanoscale particles were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Finally, the degradation mechanisms of OTC utilizing the as-prepared nanoparticles were investigated by using X-ray photoelectron spectroscopy (XPS) and mass spectrometry (MS). Cu/nZVI presented remarkable ability for OTC degradation and removed 71.44% of OTC (100mg/L) in 4hr, while only 62.34% and 31.05% of OTC was degraded by Ni/nZVI and nZVI respectively. XPS and MS analysis suggested that OTC was broken down to form small molecules by ·OH radicals generated from the corrosion of Fe0. Cu/nZVI and Ni/nZVI have been proved to have potential as materials for application in OTC removal because of their significant degradation ability toward OTC.

Authors+Show Affiliations

Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China. Electronic address: qyyue58@aliyun.com.Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, China. Electronic address: bygao@sdu.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29941253

Citation

Wu, Yuwei, et al. "Performance of Bimetallic Nanoscale Zero-valent Iron Particles for Removal of Oxytetracycline." Journal of Environmental Sciences (China), vol. 69, 2018, pp. 173-182.
Wu Y, Yue Q, Gao Y, et al. Performance of bimetallic nanoscale zero-valent iron particles for removal of oxytetracycline. J Environ Sci (China). 2018;69:173-182.
Wu, Y., Yue, Q., Gao, Y., Ren, Z., & Gao, B. (2018). Performance of bimetallic nanoscale zero-valent iron particles for removal of oxytetracycline. Journal of Environmental Sciences (China), 69, 173-182. https://doi.org/10.1016/j.jes.2017.10.006
Wu Y, et al. Performance of Bimetallic Nanoscale Zero-valent Iron Particles for Removal of Oxytetracycline. J Environ Sci (China). 2018;69:173-182. PubMed PMID: 29941253.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Performance of bimetallic nanoscale zero-valent iron particles for removal of oxytetracycline. AU - Wu,Yuwei, AU - Yue,Qinyan, AU - Gao,Yuan, AU - Ren,Zhongfei, AU - Gao,Baoyu, Y1 - 2017/10/27/ PY - 2017/06/23/received PY - 2017/10/04/revised PY - 2017/10/12/accepted PY - 2018/6/27/entrez PY - 2018/6/27/pubmed PY - 2018/7/28/medline KW - Bimetallic nanoscale zero-valent iron particles KW - Degradation mechanism KW - Hydroxyl radicals KW - Oxytetracycline SP - 173 EP - 182 JF - Journal of environmental sciences (China) JO - J Environ Sci (China) VL - 69 N2 - In this study, bimetallic nanoscale zero-valent iron particles (nZVI), including copper/nanoscale zero-valent iron particles (Cu/nZVI) and nickel/nanoscale zero-valent iron particles (Ni/nZVI), were synthesized by one-step liquid-phase reduction and applied for oxytetracycline (OTC) removal. The effects of contact time and initial pH on the removal efficiency were studied. The as-prepared nanoscale particles were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD). Finally, the degradation mechanisms of OTC utilizing the as-prepared nanoparticles were investigated by using X-ray photoelectron spectroscopy (XPS) and mass spectrometry (MS). Cu/nZVI presented remarkable ability for OTC degradation and removed 71.44% of OTC (100mg/L) in 4hr, while only 62.34% and 31.05% of OTC was degraded by Ni/nZVI and nZVI respectively. XPS and MS analysis suggested that OTC was broken down to form small molecules by ·OH radicals generated from the corrosion of Fe0. Cu/nZVI and Ni/nZVI have been proved to have potential as materials for application in OTC removal because of their significant degradation ability toward OTC. SN - 1001-0742 UR - https://www.unboundmedicine.com/medline/citation/29941253/Performance_of_bimetallic_nanoscale_zero_valent_iron_particles_for_removal_of_oxytetracycline_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1001-0742(17)31810-7 DB - PRIME DP - Unbound Medicine ER -
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