Adsorption of safranin dye from aqueous solutions using a low-cost agro-waste material soybean hull

Chandane, Vishal S.; Singh, Vikash

doi:10.1080/19443994.2014.991758

Cited by 65 publications

(22 citation statements)

References 38 publications

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“…Among various approaches towards MB removal from wastewater, adsorption and photocatalysis have been found to be superior to other methods because of its attractive features such as economical and effective method with a simple process. 14 Many adsorbents are introduced such as activated carbon, 15 sawdust, 16 perlite, 17 soybean hull, 18 kaolinite clay, 19 and rice straw. 20 However, they suffer from some limitations such as mechanical resistance, poor heat, and low adsorption capacity.…”

Section: Introductionmentioning

confidence: 99%

Development of a Novel Mixed Titanium, Silver Oxide Polyacrylonitrile Nanofiber as a Superior Adsorbent and its Application for MB Removal in Wastewater Treatment

Xu¹,

Wei²,

Jin³

et al. 2017

J. Braz. Chem. Soc.

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In this study, a novel electrospun nanofibrous composite was synthesized from polyacrylonitrile (PAN) and well-dispersed oxide nanoparticles containing Ti and Ag (PAN-TA). The nanoparticles incorporated into the nanofibers can endow the composite with photocatalytic and antimicrobial ability. The morphologies and structure of the nanofibers were characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM) and X-ray diffraction (XRD). Controlled experiments were carried out with the effects of chemical modification, solution pH, temperature, dosage, contact time, and initial concentration of the dye. The methylene blue (MB) dye was completely removed within 20 min at room temperature 25 o C with high maximum retention capacity of 155.4 mg g -1 . Moreover, equilibrium data and kinetics data indicated that the dye adsorption agreed well with the Langmuir isotherm model and pseudo-second order model, respectively. In addition, the nanofibers could be easily separated from dye solution and showed high reusability for numerous repeat cycles, thus indicating good application prospects for the wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Development of a Novel Mixed Titanium, Silver Oxide Polyacrylonitrile Nanofiber as a Superior Adsorbent and its Application for MB Removal in Wastewater Treatment

Xu¹,

Wei²,

Jin³

et al. 2017

J. Braz. Chem. Soc.

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“…Figure 3 presented the FTIR curves of the two pyrolyzed biocarbons. The peak at 1540 cm −1 corresponds to the aromatic -C=C-stretching due to the aromatic structure presence on the soy hull [41]. The sharp peak at 1010 cm −1 can be attributed to the ether -C-O-C-stretching bond [41].…”

Section: Biocarbon Morphology and Characterizationmentioning

confidence: 98%

“…The peak at 1540 cm −1 corresponds to the aromatic -C=C-stretching due to the aromatic structure presence on the soy hull [41]. The sharp peak at 1010 cm −1 can be attributed to the ether -C-O-C-stretching bond [41]. The bands around 1650-1750 cm −1 can be due to the presence of free and esterified carboxyl groups [42].…”

Section: Biocarbon Morphology and Characterizationmentioning

confidence: 99%

Underutilized Agricultural Co-Product as a Sustainable Biofiller for Polyamide 6,6: Effect of Carbonization Temperature

et al. 2020

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Polyamide 6,6 (PA66)-based biocomposites with low-cost carbonaceous natural fibers (i.e., soy hulls, co-product from soybean industry) were prepared through twin-screw extrusion and injection molding. The soy hull natural fiber was pyrolyzed at two different temperatures (500 °C and 900 °C denoted as BioC500 and BioC900 respectively) to obtain different types of biocarbons. The BioC500 preserved a higher number of functional groups as compared to BioC900. Higher graphitic carbon content was observed on the BioC900 than BioC500 as evident in Raman spectroscopy. Both biocarbons interact with the PA66 backbone through hydrogen bonding in different ways. BioC900 has a greater interaction with N-H stretching, while BioC500 interacts strongly with the amide I (C=O stretching) linkage. The BioC500 interrupts the crystallite growth of PA66 due to strong bond connection while the BioC900 promotes heterogeneous crystallization. Dynamic mechanical analysis shows that both biocarbons result in an increasing storage modulus and glass transition temperature with increasing content in the BioC/PA66 biocomposites over PA66. Rheological analysis shows that the incorporation of BioC900 results in decreasing melt viscosity of PA66, while the incorporation of BioC500 results in increasing the melt viscosity of PA66 due to greater filler–matrix adhesion. This study shows that pyrolyzed soy hull natural fiber can be processed effectively with a high temperature (>270 °C) engineering plastic for biocomposites fabrication with no degradation issues.

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“…Near‐neutral or slightly basic pH conditions were determined to be optimal for adsorption of dye to the soya material, such that the studies were carried out between pH 7.0 and 8.0, and this range was selected due to the repulsive surface interactions between charged dye molecules and the adsorbent at more basic pH levels . A similar method was used by Chandane and Singh in 2014 to remove safranin dye from aqueous solution using soybean hulls …”

Section: Remediation Of Dyesmentioning

confidence: 99%

Advanced Cellulosic Materials for Treatment and Detection of Industrial Contaminants in Wastewater

et al. 2016

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The scarcity of fresh, clean water is one of the most tremendous global crises currently facing the human race. Various technologies exist for the treatment of contaminated water on different waste volume scales, for specific pollutants, and at a range of cost points. The use of agricultural and industrial by‐products directly or with simple modifications for treating wastewater has been investigated thoroughly, and the new frontier in this field is the development of advanced cellulose materials which are low cost, highly efficient, and widely applicable. Concurrently, developing highly sensitive and selective methods for analyzing the remediation efficiency of these materials is important as low concentrations of industrial contaminants can cause severe health problems in humans. The focus of this review is current progress in advanced cellulose materials for treatment of industrially‐contaminated wastewater, particularly that which contains dyes, heavy metals, and petrochemicals, and the development of ultrasensitive technologies such as photothermal spectroscopy (PTS) and photoacoustic spectroscopy (PAS) for pollutant detection.

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Adsorption of safranin dye from aqueous solutions using a low-cost agro-waste material soybean hull

Cited by 65 publications

References 38 publications

Development of a Novel Mixed Titanium, Silver Oxide Polyacrylonitrile Nanofiber as a Superior Adsorbent and its Application for MB Removal in Wastewater Treatment

Development of a Novel Mixed Titanium, Silver Oxide Polyacrylonitrile Nanofiber as a Superior Adsorbent and its Application for MB Removal in Wastewater Treatment

Underutilized Agricultural Co-Product as a Sustainable Biofiller for Polyamide 6,6: Effect of Carbonization Temperature

Advanced Cellulosic Materials for Treatment and Detection of Industrial Contaminants in Wastewater

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