Application of Soot in the Removal of 2, 5-Dichlorophenol in Aqueous Medium

Joseph, Collin G.; Bono, Awang; Anisuzzama, S. M.; Krishnaiah, Duduku; Tan, W.C.

doi:10.3923/jas.2014.3182.3191

Cited by 7 publications

(3 citation statements)

References 19 publications

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“…Figure 3 b shows the nitrogen sorption isotherm for PSN which exhibited a type III isotherm, curving outward to the relative pressure axis, signifying that the quantity adsorbed increases with an increase in relative pressure [ 30 ]. These observations are in line with prior reports [ 13 ].…”

Section: Resultssupporting

confidence: 94%

“…The pore diameter of PSN is above 2 nm indicating that the material is mesoporous [ 30 ]. The observed surface area and pore volume obtained is slightly lower than the value, 5.396 and 1.239 respectively, reported by Joseph et al, [ 13 ] for nascent soot particles. This shortfall was ascribed to the resultant effect of introducing oxygenated groups into the carbon pore structure during HNO 3 oxidation of carbon [ 19 ].…”

Section: Resultscontrasting

confidence: 79%

“…Inclusion of nanoparticles to engineer the surface hydrophilicity of membranes is widespread [ 8 , 9 , 11 , 12 ] as a consequence of exploitation of their large surface-area-to-volume ratio in addition to chemical and mechanical resistance. Soot, obtained as waste or a byproduct of the incomplete combustion of fuels such as gasoline, kerosene, or diesel at a low temperature or limited supply of oxygen, is sized within the nanometer range [ 13 ], and can be a good candidate to be used as a nanofiller in polymer membranes. However, its hydrophobicity increases its tendency to aggregate with concomitant reduction in surface area and usability [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

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Antifouling Polyethersulfone-Petrol Soot Nanoparticles Composite Ultrafiltration Membrane for Dye Removal in Wastewater

et al. 2021

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Engineered nanoparticles are known to boost membrane performance in membrane technology. Hitherto, tunable properties that lead to improved hydrophilicity due to increased surface oxygen functionalities upon oxidation of petrol soot have not been fully exploited in membrane filtration technology. Herein, the integration of oxidized petrol soot nanoparticles (PSN) into polyethersulfone ultrafiltration membranes produced via phase inversion technique for dye removal in wastewater is reported. The nanoparticles, as well as the composite membranes, were characterized with diverse physicochemical methods, particularly TEM, SEM, BET, AFM, contact angle, etc. The effect of varying the ratio of PSN (0.05–1.0 wt %) on the properties of the composite membrane was evaluated. The composite membranes displayed increased hydrophilicity, enhanced pure water flux, and antifouling properties relative to the pristine membrane. For example, the obtained pure water flux increased from 130 L·m−2·h−1 for base membrane to 265 L·m−2·h−1 for the best composite membrane (M4). The best flux recovery ratio (FRR) observed for the membranes containing PSN was ca. 80% in contrast to 49% obtained with the pristine membrane indicative of the positive influence of PSN on membrane antifouling behavior. Furthermore, the PSN composite membranes displayed relatively selective anionic dye rejection of ˃95% for Congo red and between 50–71% for methyl orange compared with 42–96% rejection obtained for cationic methylene blue dye with increasing PSN content. The successful fabrication of polyethersulfone–PSN composite membranes by a simple blending process opens a novel route for the preparation of economical, functional, and scalable water purification membranes capable of addressing the complex issue of water remediation of organic azo dyes.

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Section: Resultssupporting

confidence: 94%

Section: Resultscontrasting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

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Antifouling Polyethersulfone-Petrol Soot Nanoparticles Composite Ultrafiltration Membrane for Dye Removal in Wastewater

et al. 2021

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Removal of chlorinated phenol from aqueous solution utilizing activated carbon derived from papaya (Carica Papaya) seeds

Krishnaiah

Joseph

Anisuzzaman

et al. 2017

Korean J. Chem. Eng.

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Activated carbons (ACs) were prepared from papaya seeds with different dry weight impregnation ratios of zinc chloride (ZnCl2) to papaya seeds by using a two-stage selfgenerated atmosphere method. The papaya seeds were first semi-carbonized in a muffle furnace at 300 oC for 1 h and then impregnated with ZnCl2 before activation at 500 oC for 2 h. Several physical and chemical characteristics such as moisture, ash, pH, functional groups, morphological structure and porosity of prepared ACs were studied and presented here. AC2, with the impregnation ration of 1 : 2 (papaya seeds: ZnCl2), yielded a product that had the highest adsorption capacity, 91.75%, achieved after 180min contact time. The maximum Brunauer, Emmett and Teller (BET) surface area of AC2 was 546m2/g. Adsorption studies indicated that AC2 complied well with the Langmuir isotherm (qm=39.683mg g-1) and the pseudo-second-order (qe=29.36mg g-1). This indicated that chemisorption was the primary adsorption method for AC2. The intraparticle diffusion model proved that the mechanism of adsorption was separated into two stages: the instantaneous stage and the gradual adsorption stage. Overall, this work demonstrated the suitability of using papaya seeds as a precursor to manufacture activated carbon.

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Removal of chlorinated phenol from aqueous media by guava seed ( Psidium guajava ) tailored activated carbon

Anisuzzaman

Joseph

Krishnaiah

et al. 2016

Water Resources and Industry

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Application of Soot in the Removal of 2, 5-Dichlorophenol in Aqueous Medium

Cited by 7 publications

References 19 publications

Antifouling Polyethersulfone-Petrol Soot Nanoparticles Composite Ultrafiltration Membrane for Dye Removal in Wastewater

Antifouling Polyethersulfone-Petrol Soot Nanoparticles Composite Ultrafiltration Membrane for Dye Removal in Wastewater

Removal of chlorinated phenol from aqueous solution utilizing activated carbon derived from papaya (Carica Papaya) seeds

Removal of chlorinated phenol from aqueous media by guava seed ( Psidium guajava ) tailored activated carbon

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