Removal of Acid Orange 7 and Remazol Black 5 reactive dyes from aqueous solutions using a novel biosorbent

2012 ◽  
Vol 32 (6) ◽  
pp. 1394-1400 ◽  
Author(s):  
Yahya Hamzeh ◽  
Alireza Ashori ◽  
Elham Azadeh ◽  
Ali Abdulkhani
Keyword(s):  
Aqueous Solutions ◽  
Reactive Dyes ◽  
Acid Orange 7 ◽  
Acid Orange ◽  
Remazol Black

A novel photochemical system of ferrous sulfite complex: Kinetics and mechanisms of rapid decolorization of Acid Orange 7 in aqueous solutions

2014 ◽  
Vol 57 ◽  
pp. 87-95 ◽  
Author(s):  
Danna Zhou ◽  
Long Chen ◽  
Changbo Zhang ◽  
Yingtan Yu ◽  
Li Zhang ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Acid Orange 7 ◽  
Acid Orange

Modelling adsorption of acid orange 7 dye in aqueous solutions to spent brewery grains

2004 ◽  
Vol 40 (2) ◽  
pp. 163-170 ◽  
Author(s):  
Joaquim Pedro Silva ◽  
Sónia Sousa ◽  
Isolina Gonçalves ◽  
John J. Porter ◽  
Suzana Ferreira-Dias
Keyword(s):  
Aqueous Solutions ◽  
Acid Orange 7 ◽  
Acid Orange

Reactions of Acid Orange 7 with Iron Nanoparticles in Aqueous Solutions

2011 ◽  
Vol 115 (49) ◽  
pp. 24143-24152 ◽  
Author(s):  
F.S. Freyria ◽  
B. Bonelli ◽  
R. Sethi ◽  
M. Armandi ◽  
E. Belluso ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Iron Nanoparticles ◽  
Acid Orange 7 ◽  
Acid Orange

Synthesis and adsorption application of amine shield-introduced-released porous chitosan hydrogel beads for removal of acid orange 7 from aqueous solutions

RSC Advances ◽  
2015 ◽  
Vol 5 (77) ◽  
pp. 62778-62787 ◽  
Author(s):  
Tingting Li ◽  
Yunguo Liu ◽  
Shufan Wang ◽  
Guangming Zeng ◽  
Bohong Zheng ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Low Cost ◽  
Acid Orange 7 ◽  
Chitosan Hydrogel ◽  
Acid Orange ◽  
Hydrogel Beads ◽  
Porous Chitosan

An effective and low-cost adsorbent named amine shield-introduced-released porous chitosan hydrogel beads (APCB) was synthesized and used for the removal of acid orange 7 from aqueous solutions.

Triphenylphosphonium conjugated quaternary ammonium based gel: synthesis and potential application in the efficient removal of toxic acid orange 7 dye from aqueous solution

2020 ◽  
Vol 44 (35) ◽  
pp. 14989-14999
Author(s):  
Sayantani Bhattacharya ◽  
Diptendu Patra ◽  
Raja Shunmugam
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Quaternary Ammonium ◽  
Potential Application ◽  
Acid Orange 7 ◽  
Efficient Removal ◽  
Acid Orange

The concerted influence of quaternary ammonium and triphenylphosphonium moieties in a gel for removal of acid orange 7 from aqueous solutions.

scholarly journals Removal of Acid Orange 7 dye from aqueous solutions using polyaniline-modified rice bran: isotherms, kinetics, and thermodynamics

2019 ◽  
Vol 6 (3) ◽  
pp. 203-213 ◽  
Author(s):  
Marzieh Bagheri ◽  
Esmail Mardani
Keyword(s):  
Aqueous Solutions ◽  
Rice Bran ◽  
Dye Removal ◽  
Industrial Wastes ◽  
Acid Orange 7 ◽  
Factors Affecting ◽  
Adsorbent Dosage ◽  
Acid Orange ◽  
Adsorbent Surface ◽  
Bet Technique

Background: Today, due to increasing usage of dyes in various industrials and their destructive effects on health and environment, it is necessary to remove them from industrial wastes. Although there are few studies on the use of rice bran modified with polyaniline (RB/PANI) for removal of different dyes, but the effect of this adsorbent on the removal of Acid Orange 7 (AO7) dye has not been evaluated yet. Therefore, this study was conducted to investigate the removal of AO7 dye by RB/PANI as an adsorbent. Methods: The adsorbent characteristics were determined using scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) spectroscopy. Also, the adsorbent surface area was measured by Brunauer–Emmett–Teller (BET) technique. The method of one-factor-at-a-time was used to optimize various factors including pH, temperature, and adsorbent dosage. Results: The optimal values for the factors affecting AO7 dye removal were calculated. It was revealed that the maximum dye removal was obtained at pH = 3, temperature = 25˚C, dye concentration = 30 mg/L, adsorbent dosage = 30 mg/L, and contact time= 60 minutes. The maximum removal percentage for RB/PANI was 97.13%. It was also revealed that Langmuir isotherm is the best fitted isotherm model. Conclusion: According to the results, the polyaniline-modified rice bran could be used as an excellent adsorbent for the removal of AO7 from aqueous solutions. The maximum dye removal efficiency for AO7 was obtained at pH = 3. Also, it was revealed that AO7 dye removal follows the pseudo-secondorder kinetic model and it is a spontaneous process.

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