Studies on the adsorption of dyes, Methylene blue, Safranin T, and Malachite green onto Polystyrene foam

The toxic effects of four disinfectants viz., copper sulfate (CuSO4), potassium permanganate (KMnO4), methylene blue and malachite green on fish and fish pathogenic bacteria Aeromonas sp., Pseudomonas fluorescens, Edwardsiella sp. and Flavobacterium sp. were investigated. Lethal concentration of the disinfectants to fingerlings of Labeo rohita was determined in aquarium by standard method. Lethal concentration of copper sulfate (CuSO4), potassium permanganate (KMnO4), methylene blue and malachite green against fish were found in 0.75ppm, 7ppm, 6ppm and 0.5ppm at 21.4hrs, 18hrs, 9.5hrs and 1.40hrs, respectively. Methylene blue at 4ppm and 5ppm concentration inhibited the growth of Pseudomonas fluorescens and 6ppm concentration suppressed the growth of Aeromonas sp. Copper sulfate (CuSO4) was effective only against Edwardsiella sp at concentration of 10ppm and 8ppm. Malachite green repressed the growth of all four tasted bacteria at a concentration of 1ppm. Potassium permanganate (KMnO4) was failed to exhibit any inhibitory effect on the bacteria even at 30ppm concentration. DOI: http://dx.doi.org/10.3329/ijns.v1i4.9738 IJNS 2011 1(4): 102-105

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Synthesis and Characterization of Poly(azomethine)/ZnO Nanocomposite Toward Photocatalytic Degradation of Methylene Blue, Malachite Green, and Bismarck Brown

Journal of Dynamic Systems Measurement and Control ◽

10.1115/1.4042090 ◽

2019 ◽

Vol 141 (5) ◽

Cited By ~ 2

Author(s):

S. J. Pradeeba ◽

K. Sampath

Keyword(s):

Methylene Blue ◽

Fourier Transform ◽

Infrared Spectroscopy ◽

Fourier Transform Infrared Spectroscopy ◽

Malachite Green ◽

Fourier Transform Infrared ◽

Visible Spectroscopy ◽

X Ray ◽

Natural Sunlight ◽

Uv Visible

This research was carried out based on the significance of protecting the environment by preventing the contamination of water caused from effluents discharge from dyeing industries, effective nanocomposite were prepared to solve this problem. The poly(azomethine), ZnO, and poly(azomethine)/ZnO nanocomposites were prepared and characterized by Fourier transform-infrared spectroscopy, ultraviolet (UV)–visible spectroscopy, powder X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDAX), scanning electron Microscope (SEM), and transmission electron microscopy (TEM) techniques. Methylene blue (MB), Malachite green (MG), and Bismarck brown (BB) were degraded from water using poly(azomethine) (PAZ), zinc oxide (ZnO), PAZ/ZnO (PNZ) nanocomposites as photocatalyst in the presence of natural sunlight. The degradation efficiency and reaction kinetics were calculated, and the outcome of the photocatalytic experiments proved that the PAZ/ZnO nanocomposites reveals excellent photocatalytic activity and effective for decolorization of dye containing waste water than PAZ and ZnO in the presence of natural sunlight. The maximum degradation efficiency 97%, 96%, and 95% was obtained for PNZ nanocomposites at optimum dosage of catalyst as 500 mg and 50 ppm of MB, MG, and BB dye concentration, respectively. The maximum degradation time was 5 h. After photocatalytic study, the samples were characterized by Fourier-transform infrared spectroscopy (FT-IR) and UV–visible spectroscopy.

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Two-fold 2D + 2D → 2D interweaved rhombus (4,4) grid: synthesis, structure, and dye removal properties in darkness and in daylight

Dalton Transactions ◽

10.1039/c8dt04170a ◽

2019 ◽

Vol 48 (3) ◽

pp. 1095-1107 ◽

Cited By ~ 4

Author(s):

Meng-Jung Tsai ◽

Jheng-Hua Luo ◽

Jing-Yun Wu

Keyword(s):

Methylene Blue ◽

Methyl Orange ◽

Malachite Green ◽

Dye Removal ◽

Acid Orange 7 ◽

High Adsorption ◽

Acid Orange ◽

Adsorption Capacities

A rhombus (4,4) grid showing two-fold 2D + 2D → 2D interweaved nets appeared to be a good adsorbent to selectively adsorb and separate anionic methyl orange (MO) and acid orange 7 (AO7) dyes over cationic methylene blue (MB) and malachite green (MG) from water with high adsorption capacities in both darkness and daylight.

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Efficacy of Selected Chemotherapeutic and Medicinal Plants on Fungal Fish Pathogens

Progressive Agriculture ◽

10.3329/pa.v19i1.17361 ◽

2013 ◽

Vol 19 (1) ◽

pp. 105-116 ◽

Cited By ~ 1

Author(s):

T Rahman ◽

MBR Chowdhury ◽

MAR Faruk

Keyword(s):

Methylene Blue ◽

Medicinal Plants ◽

Malachite Green ◽

Experimental Infection ◽

Brilliant Green ◽

Control Measure ◽

Fish Pathogens ◽

Different Doses ◽

Fresh Culture

Studies were conducted to examine the efficacy of selected chemotherapeutic and medicinal plants against common fungal fish pathogens. Four different doses of available fungicidal agents viz., lime + salt, brilliant green, malachite green and methylene blue were applied to the fresh culture of newly isolated fish pathogenic fungi (Aphanomyces invadans, Saprolegnia sp. and Achlya sp.) under in-vitro condition and minimum inhibitory dose (MID) was determined. Based on in-vitro results, chemotherapeutic were applied to the experimental infection of fish (Barbonymus gonionotus). Salt + lime, brilliant green and malachite green offered better results in reducing the rate of infection followed by medium effective methylene blue. Medicinal plants were selected on the basis of previous studies. Crude extracts were prepared from various parts (leaves and bulb) of neem (Azadirachta indica), turmeric (Curcuma longa) and shoti (C. zedoaria) and four different doses were applied to the fresh culture of above mentioned fungal pathogens under in-vitro condition to determine MID. Treatment trial was performed using the MID of the highly effective plant extracts (viz., tumeric, shoti, neem + tumeric and neem + shoti) on experimental infection of fish. Turmeric and neem + tumeric were found to be the most effective ones. Thus, medicinal plants would be an effective and alternative control measure along with selected chemotherapeutic against fungal diseases of fish.DOI: http://dx.doi.org/10.3329/pa.v19i1.17361 Progress. Agric. 19(1): 105 - 116, 2008

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