Facile one-pot electrosynthesis of zinc hydroxide for the adsorption of hazardous 2-(2-methyl-4-chlorophenoxy) propionic acid (MCPP) from water and its modelling studies

Kamaraj, Ramakrishnan; Pandiarajan, Aarthi; Vasudevan, Sudharshan; Vasudevan, Subramanyan

doi:10.1016/j.jece.2018.03.011

Cited by 32 publications

(9 citation statements)

References 31 publications

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“…The value of n is greater than 1, and 1/n is less than 1. [13][14][15][16][17] Tempkin isotherm model reveals the endothermic nature of reaction, R 2 value of 0.9796, and the positive value of B T from Table 4 (663.578) indicates an endothermic interaction. For D-R isotherm model, the maximum adsorption capacity of Q m is 17.8499 mg g −1 , which was lesser than Q m of Langmuir isotherm with R 2 value of 0.9209.…”

Section: Effect Of Ph On Adsorption Processmentioning

confidence: 98%

“…4 Among the adsorbents used in removing pollutants from water are egg shell waste, 5 sugar cane bagasse beans husk, 6 orange peel, [7][8][9] coconut husk, 10 banana stalk, 11 and kola nut husks. 12 Other methods used for removing pollutants include electrocoagulation, advanced oxidation process, anodic oxidation, ion exchange, reduction and membrane separation method, bioremediation, and photocatalytic oxidation [13][14][15][16][17] and electrochemical technologies. 18 Poly (aniline)chitosan-reduced graphene oxide based hetero semiconductor oxide for degradation of organic pollutants, 19 metal-organic framework (MOF), 20 the use of Ag-Pt nanoparticles, 21 Ag 2 S-MgO/GO nanocomposite, 22 Co 3 S 4 -SnO 2 /PVPCS nanocomposites, 23 and photocatalytic performance of Cr 2 O 3 /cellulose nanocomposites were also used to remove organic pollutants.…”

Section: Introductionmentioning

confidence: 99%

“…For the Freundlich model, R 2 value is 0.9533. The value of n is greater than 1, and 1/n is less than 1 [13][14][15][16][17]. Tempkin isotherm model reveals the endothermic nature of reaction, R 2 value of 0.9796, and the positive value of B T from Table4(663.578) indicates an endothermic interaction.…”

mentioning

confidence: 95%

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Moringa oleifera seed pod‐based adsorbent for the removal of paracetamol from aqueous solution: A novel approach toward diversification

Ogunmodede

Akanji

Bello

2021

Env Prog and Sustain Energy

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The removal of paracetamol (PCM) from aqueous solution using chemically modified Moringa seed pod activated carbon (MOSPAC) was investigated. MOSPAC was characterized using Fourier transform infrared spectroscopy, electron dispersive X-ray (EDX), and scanning electron microscopy, respectively. EDX results show that carbon in MOSP is 61.69% by weight and 61.18% by atom, while MOSPAC is 78.44% by weight and 88.80% by atom. The effects of operational parameters such as adsorbent dosage, initial PCM concentration, contact time, pH, and temperature were investigated. Langmuir model described the adsorption process mostly with adsorption capacity, q o of 20.284 mg g −1 . The Dubinin-Radushkevich (D-R) isotherm showed that the mean free energy, E D-R , ranged from 100 to 408 kJ mol −1 ,

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Section: Effect Of Ph On Adsorption Processmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Moringa oleifera seed pod‐based adsorbent for the removal of paracetamol from aqueous solution: A novel approach toward diversification

Ogunmodede

Akanji

Bello

2021

Env Prog and Sustain Energy

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“…Because of the flexibility, cost-effectiveness, no secondary pollution production, ease of operation, as well as low energy consumption, it is believed that adsorption technology is an efficient technique for antibiotic elimination. Further, adsorption processes in many cases can be reversible, so that adsorbents can be easily recycled and reused with the appropriate desorption process. − Although different sorbents including activated carbon, carbon nanotube, organoclay, biochar, porous polymers, and metal hydroxides have been utilized to remove antibiotics, these sorbents have demonstrated some limitations such as low sorption capacity and difficult separation. Thus, more investigation is required to find an efficient and cost-effective sorbent that has a high sorption capacity, an easy separation ability, and a fast adsorption rate.…”

Section: Introductionmentioning

confidence: 99%

Porous Aluminum-Based Metal–Organic Framework–Aminoclay Nanocomposite: Sustainable Synthesis and Ultrahigh Sorption of Cephalosporin Antibiotics

Imanipoor

Mohammadi

2022

Langmuir

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A novel sorbent was synthesized based on MIL-53(Al) MOF grown over an aminoclay (AC) platform, called MIL-53(Al)@AC nanocomposite, via a green and facile hydrothermal method. The nanocomposite was characterized using FT-IR, PXRD, BET, TEM, FESEM, EDS, XPS, TGA, DLS, and zeta potential analyses. BET analysis represented the porous nature and great surface area of MIL-53(Al)@AC. The high crystalline structure for the synthesized nanocomposite was verified using the PXRD pattern. FESEM, EDS, TEM, and XPS analysis proved the successful decoration of MIL-53(Al) over the AC platform. Cephalosporin antibiotics cefixime (CFX) and cephalexin (CPX), which are often present in wastewaters, were utilized to examine the sorption capacity of the nanocomposite. The significant influential factors such as pH, temperature, sorbent amount, ionic strength, and impurity were discussed. At an initial pH of 7.0 ± 0.1, the highest sorption capacities of CFX and CPX on MIL-53(Al)@AC were 784.14 and 747.91 mg g −1 (T = 298 K, and sorbent amount = 0.1 g L −1 ), which were 1.43 and 1.47 times greater compared to that of MIL-53(Al), respectively. The evaluation of experimental results was implemented through the Langmuir and Freundlich isotherm equations. The isothermal data were described nobly by the Freundlich isotherm, which confirmed multilayer adsorption on heterogeneous surfaces (R 2 > 0.970). A kinetic study indicated that the nanocomposite could adsorb the majority of cephalosporin antibiotics within 30 min. In addition, the experimental data were evaluated via pseudo-first-order, pseudo-second-order, and intraparticle diffusion models. The results indicated that the pseudosecond-order equation agreed more closely with the kinetic data (R 2 > 0.990). Furthermore, the processes of adsorption were exothermic and spontaneous. The electrostatic attraction, hydrophobic interaction, π−π electron donor−acceptor effect, H-bond, and π−π stacking constituted the main sorption mechanisms. Finally, MIL-53(Al)@AC presented an excellent regeneration performance. Thus, the results revealed the potential application of the MIL-53(Al)@AC nanocomposite for water remediation.

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“…Contaminants that can be removed by electrocoagulation are for example heavy metals [10,11], pharmaceuticals and antibiotics [12,13] and organic pollutants e.g. herbicides, phenols, textile dyes [14][15][16][17]. The electrocoagulation reactor is an electrochemical cell, which has two electrodes, an anode as a sacrificial metal, and cathode.…”

Section: Introductionmentioning

confidence: 99%

Removal of total organic carbon from peat solution by hybrid method—Electrocoagulation combined with adsorption

Myllymäki

Lahti

Romar

et al. 2018

Journal of Water Process Engineering

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Humic substances end up in water from the drainage basin causing eutrophication and the spread of algae.These natural organic substances have an influence on the physical, chemical and biological properties of the water system. Adsorption and electrocoagulation (EC) are commonly used purification methods in the water and wastewater treatment. Both methods are used by themselves for removing a wide range of impurities. In this research, the novelty was to study the effect of combined activated carbon (AC) adsorption and electrocoagulation method on the removal of organic substances as total organic carbon (TOC) from the peat solution. With the hybrid method, TOC content was efficiently removed (~95 %) by using first adsorption treatment followed by electrocoagulation with Al-or Fe -electrode. Instead, when using the adsorption and electrocoagulation separately, the removal of TOC was 79-89 %. Based on this study, the hybrid method could be efficiently used for removing organic substances from the water system.

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Facile one-pot electrosynthesis of zinc hydroxide for the adsorption of hazardous 2-(2-methyl-4-chlorophenoxy) propionic acid (MCPP) from water and its modelling studies

Cited by 32 publications

References 31 publications

Moringa oleifera seed pod‐based adsorbent for the removal of paracetamol from aqueous solution: A novel approach toward diversification

Moringa oleifera seed pod‐based adsorbent for the removal of paracetamol from aqueous solution: A novel approach toward diversification

Porous Aluminum-Based Metal–Organic Framework–Aminoclay Nanocomposite: Sustainable Synthesis and Ultrahigh Sorption of Cephalosporin Antibiotics

Removal of total organic carbon from peat solution by hybrid method—Electrocoagulation combined with adsorption

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