Comparative study between liquid–liquid extraction and bulk liquid membrane for the removal and recovery of methylene blue from wastewater

Soniya, M.; Muthuraman, G.

doi:10.1016/j.jiec.2015.05.032

Cited by 70 publications

(22 citation statements)

References 40 publications

(32 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…But without proper treatment, these dyes contaminate water and cause very hazardous effects on aquatic life; that is., the microbial activity of aquatic organisms disturbs, which further reduces the transparency of water and mitigates photosynthesis, which results in the death of aquatic animals. For example, methylene blue (MB) is a heterocyclic aromatic cationic dye which in high concentration produces harmful effects in human beings, like tissue necrosis, vomiting, shock, mental confusion, anemia [2], when come in contact with their bodies. Therefore, the removal of MB dye from industrial effluents before discharge in water bodies is of prime importance, but due to their high stability and solubility in water the removal of this dye is very difficult and a challenging task for researchers working in environmental field.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the colored form of MB cannot be biodegraded more easily as compared to its reduced colorless form. Several methods have been designed for the removal of MB and other organic pollutants from waste water such as adsorption desorption strategy [3][4][5][6], c-irradiation [7], ozonation [8][9][10], photocatalysis [11][12][13], ion exchange [14], membrane separation [2], reverse or forward osmosis [15], electrochemical methods [16,17], biochemical materials [18][19][20], but all these methods are either very expensive or cannot remove the pollutants completely. Chemical reduction method used to convert these dyes from toxic state to nontoxic or less toxic form is very easy and environmentally friendly, but the reduction of these dyes without catalyst takes much time.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ag-loaded thermo-sensitive composite microgels for enhanced catalytic reduction of methylene blue

Shah

Sayed

Fayaz

et al. 2017

Nanotechnol. Environ. Eng.

View full text Add to dashboard Cite

In this work, we report the synthesis of composite system pNAC, composed of silver nanoparticles embedded in pure thermo-sensitive crosslinked polymer network of poly(N-isopropylacrylamide-co-acrylamide) (pNA), using as a catalyst for the reduction of methylene blue (MB) dye by sodium borohydride (NaBH 4 ). The pNA was prepared by conventional free radical polymerization technique using sodium dodecyl sulfate as stabilizing agent, followed by in situ reduction of AgNO 3 inside the polymer network by NaBH 4 for the synthesis of composite systems pNACs. The synthesized pNA and pNACs were characterized by FTIR, dynamic light scattering, thermogravimetric analysis, scanning electron microscopy and UV-visible spectroscopy techniques. The materials were found sensitive toward temperature change of the medium. The entrapment ability of pNA toward different amounts of AgNO 3 solution was studied, and effect of metal content on particle size of pNACs was analyzed. The pNACs were applied as a catalyst for the reduction of MB in which they exhibit high catalytic activity and reusability toward the reaction.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ag-loaded thermo-sensitive composite microgels for enhanced catalytic reduction of methylene blue

Shah

Sayed

Fayaz

et al. 2017

Nanotechnol. Environ. Eng.

View full text Add to dashboard Cite

show abstract

“…Pengambilan metilen biru paling tinggi yaitu sebesar 92,89% pada pH 7 hal ini dikarenakan pada pH netral metilen biru dapat dengan mudah berikatan dengan asam salisilat. Penurunan metilen biru yang terambil disebabkan adanya H + pada pH asam mengakibatkan persaingan antara ion H + dari asam dengan muatan positif dari metilen biru untuk berikatan, sedangkan penurunan metilen biru yang terambil pada kondisi basa disebabkan adanya OH -dan gugus COO -dari asam salisilat yang menyebabkan adanya kompetisi untuk berikatan dengan metilen biru [7].…”

Section: Gambar 2 Pengaruh Ph Terhadap Persentase Metilen Biru Yang unclassified

Blue Methylene Retrieval using Silica-Salicylic Acid Modified Filtering

2018

View full text Add to dashboard Cite

A r t i c l e I n f o A b s t r a c tKeywords: methylene blue, silica, salicylic acidThe retrieval of methylene blue using a silica-modified sulfide-salicylic acid has been carried out. Salicylate-silica-acid alloys have been prepared by comparing the four media ie filter paper, silica-filter paper, salicylic acid-filter paper and salicylic acidsilica-filter paper. This study aims to study the recovery of methylene blue using salicylic acid-modified silica filtering with various parameters on the adsorption and desorption process. The results showed that the salicylic acid-silica alloy could improve the capability of methylene blue removal. The result of pH variation on the adsorption process showed that at pH 7 methylene blue can be taken 92.89%. Whereas at concentration variation, salicylic acid at 5 mM can take methylene blue equal to 92.86%.The desorption results showed that pH 1 methylene blue could be desorbed at 308.89 mg/g, while the variation of contact time of desorption ie at 110 minutes could an saturate the blue methylene by 589,61 mg/g. The UV-Vis analysis showed a decrease in absorbance in salicylic acid after contact with silica. The FTIR analysis also shows that in salicylate-silica-acid alloys there are Si-O groups derived from silica and C = O derived from salicylic acid.A b s t r a k Kata Kunci: Metilen biru, silika, asam salisilat Pengambilan metilen biru menggunakan penyaringan termodifikasi silika-asam salisilat telah dilakukan dengan membuat paduan silika-asam salisilat dan membandingkan keempat media yaitu kertas saring, kertas saring-silika, kertas saringasam salisilat dan kertas saring-silika-asam salisilat. Penelitian ini bertujuan untuk mempelajari pengambilan metilen biru menggunakan penyaringan termodifikasi silikaasam salisilat dengan berbagai parameter pada proses adsorpsi dan desorpsi. Hasil penelitian menunjukkan bahwa paduan silika-asam salisilat dapat meningkatkan kemampuan pengambilan metilen biru. Hasil variasi pH pada proses adsorpsi menunjukkan bahwa pada pH 7 metilen biru dapat terambil 92,89%, sedangkan variasi konsentrasi asam salisilat pada 5 mM dapat mengambil metilen biru sebesar 92,86%.Hasil desorpsi menunjukkan pada pH 1 metilen biru dapat terdesorpsi sebesar 308,89 mg/g, sedangkan variasi waktu kontak desorpsi yaitu pada waktu 110 menit dapat mendesorpsi metilen biru sebesar 589,61 mg/g. Hasil analisis UV-Vis menunjukkan adanya penurunan absorbansi pada asam salisilat setelah kontak dengan silika. Hasil analisis FTIR juga menunjukkan pada paduan silika-asam salisilat terdapat gugus Si-O yang berasal dari silika dan C=O yang berasal dari asam salisilat.

show abstract

“…The fundamentals of LLE are based on the non‐uniform distribution of solute between immiscible liquid phases . In the last decade, ionic liquids (ILs) have drawn the attention of researchers working in different areas of chemistry because of their chemical stability, non‐volatility, non‐flammability and wide liquid‐temperature range …”

Section: Introductionmentioning

confidence: 99%

Extraction of reactive dyes from aqueous solutions by halogen‐free ionic liquids

Castillo-Cervantes

Lijanova

Likhanova

et al. 2019

Coloration Technology

View full text Add to dashboard Cite

Dyes are commonly used in various industries and unfortunately many of them are discharged into water bodies, causing environmental problems. In the current study, three hydrophobic, halogen‐free ionic liquids were synthesised and their capability as extracting agents was evaluated using four reactive dyes (CI Reactive Blue 4, CI Reactive Black 5, CI Reactive Orange 16 and CI Reactive Red 2). The ionic liquids, immiscible with the aqueous phase, could extract the reactive dyes from aqueous solutions, withdrawing the same amount of weight. The effects of pH and temperature on the extraction process were also studied. Trioctylmethyl ammonium ethylenediaminetetraacetate displayed a high extraction efficiency (99%), where only 33 mg of ionic liquids extracted 50 mg of CI Reactive Blue 4. Fourier Transform–infrared spectroscopy was used to screen the interaction between the ionic liquid and CI Reactive Blue 4 during the extraction stage.

show abstract

Comparative study between liquid–liquid extraction and bulk liquid membrane for the removal and recovery of methylene blue from wastewater

Cited by 70 publications

References 40 publications

Ag-loaded thermo-sensitive composite microgels for enhanced catalytic reduction of methylene blue

Ag-loaded thermo-sensitive composite microgels for enhanced catalytic reduction of methylene blue

Blue Methylene Retrieval using Silica-Salicylic Acid Modified Filtering

Extraction of reactive dyes from aqueous solutions by halogen‐free ionic liquids

Contact Info

Product

Resources

About