Effect of surface area and physical–chemical properties of graphite and graphene-based materials on their adsorption capacity towards metronidazole and trimethoprim antibiotics in aqueous solution

Carrales-Alvarado, D.H.; Rodriguez-Ramos, I.; Leyva‐Ramos, Roberto; Mendoza‐Mendoza, Esmeralda; Villela-Martínez, Diana Elizabeth

doi:10.1016/j.cej.2020.126155

Cited by 87 publications

(29 citation statements)

References 39 publications

(43 reference statements)

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“…Which indicates that unfavorable adsorption was occurred and also all the adsorption capacity (C m ) values were negative for the SiNP-Cu. These results agree with a previous study by Molu and Yurdakoc, 2010 [ 54 ].…”

Section: Resultssupporting

confidence: 94%

Experimental and theoretical study for removal of trimethoprim from wastewater using organically modified silica with pyrazole-3-carbaldehyde bridged to copper ions

et al. 2022

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Background Human and veterinary antibiotics are typically discharged as parent chemicals in urine or feces and are known to be released into the environment via wastewater treatment plants (WWTPs). Several research investigations have recently been conducted on the removal and bioremediation of pharmaceutical and personal care products (PPCPs) disposed of in wastewater. Results SiNP-Cu, a chelating matrix, was produced by delaying and slowing 1.5-dimethyl-1H-pyrazole-3-carbaldehyde on silica gel from functionalized with 3-aminopropyltrimethoxysilane. The prepared sorbent material was characterized using several techniques including BET surface area, FT-IR spectroscopy, Scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and nitrogen adsorption–desorption isotherm. The pseudo-second-order model provided the best correlation due to the big match between the experimental and theoretical of different adsorption coefficients. The Langmuir and Freundlich adsorption models were used and the study showed a better match with the Freundlich model with a capacity of removal reached up to 420 mg g−1. The removal capacity was dependent on pH and increased by increasing pH. The removal percentage reached 91;5% at pH = 8. The adsorbent demonstrated a high percentage removal of TMP, reaching more than 94% when increased pH. The sample was simply regenerated by soaking it for a few minutes in 1 N HCl and drying it. The sorbent was repeated five times with no discernible decrease in removal capacity. The thermodynamic study also showed endothermic, increasing randomness and not spontaneous. The free energy was 2.71 kJ/mol at 320 K. The findings of the DFT B3LYP/6–31 + g (d, p) local reactivity descriptors revealed that nitrogen atoms and π-electrons of the benzene and pyrimidine rings in the TMP are responsible for the adsorption process with the SiNP surface. The negative values of the adsorption energies obtained by molecular dynamic simulation indicated the spontaneity of the adsorption process. Conclusion The global reactivity indices prove that TMP is stable and it can be removed from wastewater using SiNP surface. The results of the local reactivity indices concluded that the active centers for the adsorption process are the nitrogen atoms and the π-electrons of the pyrimidine and benzene rings. Furthermore, the positive value of the maximum charge transfer number (ΔN) proves that TMP has a great tendency to donate electrons to SiNP surface during the process of adsorption.

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Section: Resultssupporting

confidence: 94%

Experimental and theoretical study for removal of trimethoprim from wastewater using organically modified silica with pyrazole-3-carbaldehyde bridged to copper ions

et al. 2022

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“…To the best of our knowledge, the process is a novel way to produce nanodiamond. The carbon products and nanodiamond reduced from CO 2 have the potential to be used in various applications, as follows: strain sensor, gas sensor, , adsorbate, , lubricants, , and biomedical media. − The amounts of those products were however small for application usage. Further study is thus required to clarify the mechanism of CO 2 thermal reduction and develop catalysts for highly efficient CO 2 thermal reductions to solid carbon products at temperatures much lower than 700 K.…”

Section: Discussionmentioning

confidence: 99%

Low-Temperature CO₂ Thermal Reduction to Graphitic and Diamond-like Carbons Using Perovskite-Type Titanium Nanoceramics by Quasi-High-Pressure Reactions

Watanabe

Ohba

2021

ACS Sustainable Chem. Eng.

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Catalytic thermal reduction of CO 2 has the potential to minimize the energy requirement in carbon capture and utilization. However, this process necessitates high energy with a reactant gas, heating, and pressurization. High-performance catalysts are thus needed to transform CO 2 into value-added carbon products at low energy consumption. We here demonstrate the thermal reduction of CO 2 to carbon products at 700 K and ambient pressure using nanoscale perovskite-type titanium nanocatalysts. The reactivity of CO 2 was exponentially increased by decreasing the particle size until 10 nm. The reaction yields calculated from the weight changes of nanocatalysts under CO 2 flow were very high, i.e., between 1600 and 3300 μmol g −1 h −1 for nanocatalysts smaller than 20 nm, which were similar to those of CO 2 reductions with a reactant gas into lower hydrocarbons and alcohols. A CO 2 reductant was evaluated by transmission electron microscopy, chemical mapping using energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and Raman scattering spectroscopy. Graphitic carbons were coated on 9−12 nm nanocatalysts after CO 2 reduction. Graphitic carbons were mainly observed on the 12 nm nanocatalyst. A nanodiamond-like structure was partly observed on the 9 nm nanocatalyst, as well as a graphitic structure. Nanodiamond was hardly produced in the mild condition at 700 K and ambient pressure, which was normally produced above 2 GPa and 1600 K. A nanodiamond was produced by quasi-high-pressure effect in graphene and amorphous carbons, which were previously produced on nanocatalysts. The low-temperature CO 2 thermal reduction using perovskite-type titanium nanocatalysts at 700 K is thus a promising approach to CO 2 reduction and novel way to produce nanodiamond-like structure.

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“…By solid addition method, the CoFe2O4@CMC/HZSM-5 point of zero charge (pHpzc) was evaluated. At first, 10 different pH (2)(3)(4)(5)(6)(7)(8)(9)(10)(11) values, 100 mL of KCl solution (0.1 mol/L) was prepared. Then, 0.01 g of the magnetic nanobiocomposite was added to each solution.…”

Section: Adsorption Methodsmentioning

confidence: 99%

“…Metronidazole is one of the most commonly used antibiotics in the world which is in the WHO's list of essential medicines. Metronidazole, like other antibacterial and antioxidant medicines which have nitroimidazole ring structure, is suspicious to causes carcinogenic and mutagenic [4]. By reason of the non-biodegradability, toxicity, mutagenic and carcinogenic potential of metronidazole, the wastewater containing this antibiotic causes harmful effects on the humans and ecological environment so, removal of metronidazole has environmental, technical and economic importance [5].…”

Section: Introductionmentioning

confidence: 99%

Preparation of CoFe2O4@Carboxymethylcellulose/HZSM-5 as a Novel Nano Magnetic Adsorbent for Metronidazole Removal: Isotherm, Kinetic and Thermodynamic Study

Nasiri

Heidari

Javid

et al. 2021

Preprint

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In this research CoFe2O4@CMC/ HZSM-5 synthesized in the presence of Carboxymethylcellulose as a biopolymer in the green conditions as a new nanomagnetic adsorbent for metronidazole removal from aqueous media. Physical and chemical structure of adsorbent was investigated by FTIR, FESEM, EDS, Mapping, TEM, XRD, VSM, BET and TGA techniques. The results indicated that 94% of the metronidazole concentration removed by CoFe2O4@CMC/HZSM-5 in the optimal conditions including pH 6, temperature 20oC, metronidazole concentration 50 mg/L, contact time 60 min and adsorbent dose 2 g/L. The resulting data from adsorption experimental experiments had better correlated with the Freundlich isotherm and pseudo-second order kinetic. Also, the thermodynamic study demonstrated that the adsorption process was an endothermic process and had a physical mechanism. As well as, the achieved findings demonstrated that following six adsorption runs, the adsorbent chemical structure had no change and the nanomagnetic adsorbent efficiency in the removal process had a slight decrease. CoFe2O4@CMC/HZSM-5 magnetic nanocomposite had effective adsorption capacity for metronidazole removal.

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Effect of surface area and physical–chemical properties of graphite and graphene-based materials on their adsorption capacity towards metronidazole and trimethoprim antibiotics in aqueous solution

Cited by 87 publications

References 39 publications

Experimental and theoretical study for removal of trimethoprim from wastewater using organically modified silica with pyrazole-3-carbaldehyde bridged to copper ions

Experimental and theoretical study for removal of trimethoprim from wastewater using organically modified silica with pyrazole-3-carbaldehyde bridged to copper ions

Low-Temperature CO₂ Thermal Reduction to Graphitic and Diamond-like Carbons Using Perovskite-Type Titanium Nanoceramics by Quasi-High-Pressure Reactions

Preparation of CoFe2O4@Carboxymethylcellulose/HZSM-5 as a Novel Nano Magnetic Adsorbent for Metronidazole Removal: Isotherm, Kinetic and Thermodynamic Study

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Effect of surface area and physical–chemical properties of graphite and graphene-based materials on their adsorption capacity towards metronidazole and trimethoprim antibiotics in aqueous solution

Cited by 87 publications

References 39 publications

Experimental and theoretical study for removal of trimethoprim from wastewater using organically modified silica with pyrazole-3-carbaldehyde bridged to copper ions

Experimental and theoretical study for removal of trimethoprim from wastewater using organically modified silica with pyrazole-3-carbaldehyde bridged to copper ions

Low-Temperature CO2 Thermal Reduction to Graphitic and Diamond-like Carbons Using Perovskite-Type Titanium Nanoceramics by Quasi-High-Pressure Reactions

Preparation of CoFe2O4@Carboxymethylcellulose/HZSM-5 as a Novel Nano Magnetic Adsorbent for Metronidazole Removal: Isotherm, Kinetic and Thermodynamic Study

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Low-Temperature CO₂ Thermal Reduction to Graphitic and Diamond-like Carbons Using Perovskite-Type Titanium Nanoceramics by Quasi-High-Pressure Reactions