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Preparation of Nano MnOx-loaded Paper via in Situ Synthesis and Its Performance for Formaldehyde Removal
  
DOI：10.11980/j.issn.0254-508X.2018.07.003
Key Words:formaldehyde  nano MnOx  in situ synthesis  catalytic oxidation  visible light photocatalytic oxidation
Author NameAffiliation
WANG Ping1 1. Key Lab of Bio-based Material Science and Technology of Ministry of Education， Northeast Forestry University， Harbin， Heilongjiang Province， 150040 
XIN Xin1 1. Key Lab of Bio-based Material Science and Technology of Ministry of Education， Northeast Forestry University， Harbin， Heilongjiang Province， 150040 
ZHOU Wan-peng2 2.Xuancheng Product Quality Supervision and Inspection Institute，Xuancheng，Anhui Province， 242000 
AN Xian-hui1 1. Key Lab of Bio-based Material Science and Technology of Ministry of Education， Northeast Forestry University， Harbin， Heilongjiang Province， 150040 
QIAN Xue-ren1，* 1. Key Lab of Bio-based Material Science and Technology of Ministry of Education， Northeast Forestry University， Harbin， Heilongjiang Province， 150040 
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Abstract:Nano MnOx-loaded paper was prepared via in situ synthesis process，and its performance for formaldehyde removal was studied.The performance for formaldehyde removal of nano MnOx-loaded paper had some correlation with the deposition ratio of nano MnOx particles. When the concentration of potassium permanganate （KMnO4） was 0.1mol/L， the volume of absolute ethanol was 60 mL， reaction temperature was 25 ℃ and reaction time was 2 h， the nano MnOx-loaded paper with the optimal performance for formaldehyde removal could be prepared. SEM observation indicated that nano MnOx particles were deposited on the surface of pulp fibers. The FT-IR results showed that the in situ deposition of nano MnOx particles did not change the chemical structure of cellulose. The XPS analysis further revealed the generation of MnOx . Formaldehyde was removed by the nano MnOx-loaded paper mainly via catalytic oxidation and partly via visible light photocatalytic oxidation.Formaldehyde could be effectively removed by the nano MnOx-loaded paper in dark environment.
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