In situ loading metal oxide particles on bio-chars: Reusable materials for efficient removal of methylene blue from wastewater

2019 ◽  
Vol 220 ◽  
pp. 460-474 ◽  
Author(s):  
Shimin Zhai ◽  
Min Li ◽  
Dong Wang ◽  
Liping Zhang ◽  
Yi Yang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Metal Oxide ◽  
Efficient Removal ◽  
Oxide Particles

In situ photoacoustic spectroscopic analysis on photocatalytic decolorization of methylene blue over titanium(iv) oxide particles

RSC Advances ◽  
2016 ◽  
Vol 6 (70) ◽  
pp. 65518-65523 ◽  
Author(s):  
Naoya Murakami ◽  
Hirotaka Maruno
Keyword(s):  
Methylene Blue ◽  
Photoacoustic Spectroscopy ◽  
Spectroscopic Analysis ◽  
Aqueous Suspension ◽  
Photocatalytic Decolorization ◽  
Oxide Particles

Photoabsorption of an aqueous suspension containing methylene blue (MB) dye and titanium(iv) oxide (TiO2) powder was evaluated using photoacoustic spectroscopy (PAS), and the photocatalytic decolorization of MB over TiO2 was observed using PAS.

Capturing H2S(g)by In Situ-Prepared Ultradispersed Metal Oxide Particles in an Oilsand-Packed Bed Column

2010 ◽  
Vol 24 (11) ◽  
pp. 5903-5906 ◽  
Author(s):  
Nashaat N. Nassar ◽  
Pedro Pereira-Almao
Keyword(s):  
Metal Oxide ◽  
Packed Bed ◽  
Packed Bed Column ◽  
Oxide Particles

scholarly journals Fe3O4@C Nanoparticles Synthesized by In Situ Solid-Phase Method for Removal of Methylene Blue

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 330
Author(s):  
Hengli Xiang ◽  
Genkuan Ren ◽  
Yanjun Zhong ◽  
Dehua Xu ◽  
Zhiye Zhang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Solid Phase ◽  
Raw Materials ◽  
Phase Method ◽  
Maximum Adsorption Capacity ◽  
High Catalytic Activity ◽  
Solid Phase Reaction ◽  
Phase Reaction ◽  
High Concentrations

Fe3O4@C nanoparticles were prepared by an in situ, solid-phase reaction, without any precursor, using FeSO4, FeS2, and PVP K30 as raw materials. The nanoparticles were utilized to decolorize high concentrations methylene blue (MB). The results indicated that the maximum adsorption capacity of the Fe3O4@C nanoparticles was 18.52 mg/g, and that the adsorption process was exothermic. Additionally, by employing H2O2 as the initiator of a Fenton-like reaction, the removal efficiency of 100 mg/L MB reached ~99% with Fe3O4@C nanoparticles, while that of MB was only ~34% using pure Fe3O4 nanoparticles. The mechanism of H2O2 activated on the Fe3O4@C nanoparticles and the possible degradation pathways of MB are discussed. The Fe3O4@C nanoparticles retained high catalytic activity after five usage cycles. This work describes a facile method for producing Fe3O4@C nanoparticles with excellent catalytic reactivity, and therefore, represents a promising approach for the industrial production of Fe3O4@C nanoparticles for the treatment of high concentrations of dyes in wastewater.

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