scholarly journals Synthesis of ferrate using NaOCl and Fe(OH)3 from electrolysis of used iron, and its application for metanil yellow degradation

2021 ◽  
Vol 1943 (1) ◽  
pp. 012181
Author(s):  
Gunawan ◽  
N B A Prasetya ◽  
A Haris ◽  
F Febriliani
Keyword(s):  
2020 ◽  
Vol 316 ◽  
pp. 123923 ◽  
Author(s):  
Guang Guo ◽  
Jiuxiao Hao ◽  
Fang Tian ◽  
Chong Liu ◽  
Keqiang Ding ◽  
...  

2019 ◽  
Vol 2 (04) ◽  
pp. 15-26
Author(s):  
Beniah Obinna Isiuku ◽  
Francis Chizoruo Ibe

The biosorption of metanil yellow on hen egg membrane from aqueous solution in a batch process was investigated at 29oC with a view to determine the potential of the membrane in removing metanil yellow from aqueous solution.  The effects of contact time, initial biosorbate concentration, biosorbent dosage and initial biosorbate pH were determined. Various isotherm models were used to analyze experimental data. The highest experimental equilibrium biosorption capacity obtained was 129.88 mg/g. The optimum pH was 3. Adsorption capacity increased with increase in initial solution concentration but decreased with increase in time. The isotherm models applied were good fits based on correlation coefficients. Flory-Huggins isotherm was the best fit (R2 0.986). The biosorption was endothermic, good, physisorptive and spontaneous. This work shows that hen egg membrane is a potential biosorbent for the removal of metanil yellow from aqueous solution.


2009 ◽  
Vol 6 (s1) ◽  
pp. S79-S86 ◽  
Author(s):  
Vikesh Kumar ◽  
M. R. Tripathi ◽  
Manish Kumar ◽  
Gopal Shukla ◽  
Sarvesh Dwivedi ◽  
...  

There are several low lying singlet oxygen (1O2) and superoxide radical (O-2) which are important in photochemical oxidation. In our present analysis we are studying chemical property of singlet oxygen (1O2) and super oxide radical (O-2) and some dyestuffs species to produce reactive oxygen such as singlet oxygen1O2and superoxide radicals. Irradiation with sun lightin vitrothe dyestuff like benzanthrone, metanil yellow andp-aminodiphenylamine were found to produce reactive oxygen species such as singlet oxygen (1O2) and/or superoxide radicals (O-2) .The dose response relationship between singlet1O2production when sunlight expose of those dyestuffs (0-25 min), and (0-12 min) for super oxide (O-2) production were studied. However benzanthrone produces detectable amount of1O2, Although metanil yellow andp-aminodiphenylamine (p-ADPA) did not produce detectable amounts of1O2under similar conditions. The above dye stuffs are routinely used in textiles, cosmetics, detergents, leather industries as well as food additives and role of these activated oxygen species in the development of skin diseases.


The Analyst ◽  
1993 ◽  
Vol 118 (12) ◽  
pp. 1539 ◽  
Author(s):  
Nobuo Nakano ◽  
Akihiro Yamamoto ◽  
Yoshio Kobayashi ◽  
Kunio Nagashima

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