VO2(D) hollow core–shell microspheres: synthesis, methylene blue dye adsorption and their transformation into C/VOxnanoparticles

2018 ◽  
Vol 5 (3) ◽  
pp. 550-558 ◽  
Author(s):  
Liangmiao Zhang ◽  
Jianing Yao ◽  
Fang Xia ◽  
Yunfeng Guo ◽  
Chuanxiang Cao ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Dye Adsorption ◽  
Blue Dye ◽  
Core Shell ◽  
Methylene Blue Dye ◽  
Hollow Core ◽  
Adsorption Ability ◽  
Adsorption Performance ◽  
Enhanced Adsorption ◽  
Mb Adsorption

Hollow core–shell VO2(D) microspheres were fabricated and they exhibited excellent MB adsorption ability; and the regenerated C/VOxnanoparticles showed enhanced adsorption performance and good reusability.

scholarly journals Removal of methylene blue dye in water by using recoverable natural zeolite/Fe3O4 adsorbent

2021 ◽  
Keyword(s):  
Methylene Blue ◽  
Natural Zeolite ◽  
Low Cost ◽  
Dye Adsorption ◽  
Adsorption Kinetic ◽  
Blue Dye ◽  
Adsorption Ability ◽  
Pseudo Second Order ◽  
Co Precipitation ◽  
Mb Adsorption

<p>In this paper, the low-cost and practical adsorption for removing methylene blue (MB) dye has been developed by using recoverable natural zeolite that was magnetized with Fe3O4. The magnetization was conducted by co-precipitation technique. The adsorbents obtained from the magnetization were characterized by XRD, FTIR, surface area analyzer and turbidity meter machines. The MB adsorption on the recoverable adsorbent was performed by batch experiment. The effect of Fe3O4 fraction on adsorbent characters, recoverability, and adsorption ability was evaluated. The adsorption kinetic and isotherm were also determined. The research results attributed that recoverable zeolite/Fe3O4 adsorbent has been successfully produced. It was found that the increase of Fe3O4 fraction in the adsorbent, has improved the recoverability, but in the same time, it caused the adsorption decreased. The fraction of Fe3O4 as much 33.30%w displayed compromisingly good capacity and recoverability. The maximum MB dye adsorption was reached by a condition of 0.25 g L-1 of the adsorbent dose, pH 8, and in 60 mins of the contact time The adsorption kinetic well fitted with pseudo second-order with the adsorption rate of 0.0238 mg g-1 min-1. The adsorption strongly agreed with the Langmuir isotherm with adsorption capacity of 32.258 mg g-1 .</p>

scholarly journals Preparation, Characterization and Methylene Blue Dye Adsorption Ability of Acid Activated-Natural Zeolite

2017 ◽  
Vol 172 ◽  
pp. 012039
Author(s):  
O A Saputra ◽  
M D Prameswari ◽  
V T D Kinanti ◽  
O D Mayasari ◽  
Y D Sutarni ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Natural Zeolite ◽  
Dye Adsorption ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Adsorption Ability

scholarly journals Degradation of Methylene Blue Dye in the Presence of Visible Light Using SiO2@α-Fe2O3 Nanocomposites Deposited on SnS2 Flowers

2018 ◽  
Author(s):  
Sridharan Balu ◽  
Kasimayan Uma ◽  
Guan-Ting Pan ◽  
Thomas C.-K. Yang ◽  
Sayee Kannan Ramaraj
Keyword(s):  
Methylene Blue ◽  
Three Dimensional ◽  
Semiconductor Materials ◽  
Blue Dye ◽  
Core Shell ◽  
Methylene Blue Dye ◽  
X Ray Diffraction ◽  
Facile Hydrothermal Method ◽  
X Ray ◽  
Scanning Electron

Semiconductor materials have been shown to have better photocatalytic behavior and can be utilized for the photodegradation of organic pollutants. In this work, three-dimensional flower-like SnS2 were synthesized by a facile hydrothermal method. Core-shell structured SiO2@&alpha;-Fe2O3 nanocomposites were then deposited on the top of the SnS2 flowers. The as-synthesized nanocomposites were characterized by X-ray diffraction (XRD), Raman spectroscopy, field emission scanning electron microscopy (FE-SEM), Brunauer-Emmett-Teller (BET) and photoluminescence spectroscopy (PL). The photocatalytic behavior of the SnS2-SiO2@&alpha;-Fe2O3 nanocomposites was observed by observing the degradation of methylene blue (MB). The results show an effective enhancement of photocatalytic activity for the degradation of MB especially for the 15 wt. % SiO2@&alpha;-Fe2O3 nanocomposites on SnS2 flowers.

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