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Synthesis of Alpha‐Fe 2 O 3 nanospheres and its dark‐degradation for organic dye pollutions
Author(s) -
Wu Fengmin,
Wang Xiaowei,
Li Mei,
Xu Hang
Publication year - 2019
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.13176
Subject(s) - aqueous solution , raman spectroscopy , scanning electron microscope , transmission electron microscopy , materials science , nuclear chemistry , mesoporous material , methylene blue , degradation (telecommunications) , specific surface area , adsorption , environmental pollution , spectroscopy , analytical chemistry (journal) , chemical engineering , nanotechnology , chemistry , organic chemistry , catalysis , photocatalysis , telecommunications , physics , environmental protection , environmental science , engineering , computer science , optics , composite material , quantum mechanics
The removal of organic dye from aqueous solution is crucial to human health and environmental pollution. Herein, α‐Fe 2 O 3 nanospheres were synthesized through sol–gel method and applied as adsorbents to remove methylene blue (MB) from aqueous solutions. The precursor samples annealed at different temperature were characterized by means of X‐ray diffraction and Raman spectroscopy. The results showed the as‐prepared sample was α‐Fe 2 O 3 phase with well‐crystallized rhombohedra structure. Scanning electron microscopy and transmission electron microscope showed that the synthesized α‐Fe 2 O 3 product was consisted of nanospheres. The Brunauer–Emmett–Teller showed the synthesized samples exhibited possessing high specific surface area with mesoporous structures. The as‐prepared synthesized α‐Fe 2 O 3 nanospheres had excellent degraded properties; the maximum degradation rate for MB was around 94% within 10 min when the α‐Fe 2 O 3 nanospheres content was 0.15 g L −1 . © 2019 American Institute of Chemical Engineers Environ Prog, 38:e13146, 2019