Application of Fe-based metal-organic framework and its pyrolysis products for sulfonamide treatment

Tran, Thuan Van; Nguyen, Duyen Thi Cam; Nguyen, Hong-Tham T.; Nanda, Sonil; Vo, Dai‐Viet N.; Trung, Sy; Nguyen, Tuyen Van; Thi, Tuyet Anh Dang; Bạch, Long Giang; Nguyen, Trinh Duy

doi:10.1007/s11356-019-06011-2

Cited by 35 publications

(13 citation statements)

References 86 publications

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“…The spectra obtained for the extracted PHB displayed a high correspondence with that for pure PHB as well as with previously reported spectra 14,15 . In the present study, the values of the FTIR absorption bands of the carbonyl group, -OH group, -C-H group, and -CH 2 and -CH 3 groups were related to values reported in recent studies [53][54][55][56] . One of the most common chemical groups in all types of PHAs is the carbonyl group (C = O) 41,43 .…”

Section: Discussionsupporting

confidence: 82%

Bioplastic (poly-3-hydroxybutyrate) production by the marine bacterium Pseudodonghicola xiamenensis through date syrup valorization and structural assessment of the biopolymer

Mostafa

Alrumman

Alamri

et al. 2020

Sci Rep

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Biobased degradable plastics have received significant attention owing to their potential application as a green alternative to synthetic plastics. A dye-based procedure was used to screen poly-3hydroxybutyrate (PHB)-producing marine bacteria isolated from the Red Sea, Saudi Arabia. Among the 56 bacterial isolates, Pseudodonghicola xiamenensis, identified using 16S rRNA gene analyses, accumulated the highest amount of PHB. The highest PHB production by P. xiamenensis was achieved after 96 h of incubation at pH 7.5 and 35 °C in the presence of 4% NaCl, and peptone was the preferred nitrogen source. The use of date syrup at 4% (w/v) resulted in a PHB concentration of 15.54 g/L and a PHB yield of 38.85% of the date syrup, with a productivity rate of 0.162 g/L/h, which could substantially improve the production cost. Structural assessment of the bioplastic by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy revealed the presence of methyl, hydroxyl, methine, methylene, and ester carbonyl groups in the extracted polymer. The derivative products of butanoic acid estimated by gas chromatography-mass spectrometry [butanoic acid, 2-amino-4-(methylseleno), hexanoic acid, 4-methyl-, methyl ester, and hexanedioic acid, monomethyl ester] confirmed the structure of PHB. The present results are the first report on the production of a bioplastic by P. xiamenensis, suggesting that Red Sea habitats are a potential biological reservoir for novel bioplastic-producing bacteria. Petroleum-based plastic has been rapidly produced in recent decades, and its biodegradation resistance has led to a serious environmental issue for the management of solid wastes 1. The global demand for bioplastic as a substitute for synthetic plastics has increased due to its nontoxicity, renewability, biocompatibility, and biodegradability 2. Degradable biobased plastics can be produced from different renewable raw materials (polysaccharides and proteins), plants (starch-based plastics and cellulose-based plastics), and microbial bioplastics (polylactic acid and polyhydroxyalkanoates (PHAs)) 3. PHAs are the most promising type of bioplastic; they are nontoxic, biodegradable and biocompatible and have properties similar to those of conventional plastics 4. PHAs are biopolymers with diverse structures; as a defense mechanism for surviving stress conditions with nutrient imbalance, PHAs accumulate inside bacterial cells as stored energy 5. The considerable variations in functional groups from methyl to tridecyl, unsaturated bonds, and chain length make PHAs appropriate biopolymers for many different applications 6. The most common form of PHAs is poly-3-hydroxybutyrate (PHB), which accumulates in many microbes by binding β-hydroxybutyrate monomers with ester bonds 7. The universal manufacturing capacity of

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Section: Discussionsupporting

confidence: 82%

Bioplastic (poly-3-hydroxybutyrate) production by the marine bacterium Pseudodonghicola xiamenensis through date syrup valorization and structural assessment of the biopolymer

Mostafa

Alrumman

Alamri

et al. 2020

Sci Rep

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“…The N 1s spectrum was deconvoluted to three peaks centered at 398.5, 400.1, and 401.4 eV, which correspond to CN–C groups, tertiary N atoms, and amino functional groups, respectively (Figure d). , The deconvoluted C 1s and N 1s XPS spectra of Ni@Ni-NC were significantly different from those of CN. The C 1s peaks were observed at 284.6, 285.8, 286.4, 287.4, and 289.0 eV, corresponding to C–C, CN, C–O, C–N, and O–CO groups, respectively (Figure c). − The N 1s peaks were found at 398.5, 399.6, 399.9, and 400.8 eV, corresponding to pyridinic N, Ni–N, pyrrolic N, and graphitic N groups, respectively (Figure d). , The characteristic peaks of the C 3 N 4 structure were reduced significantly, and the peak for Ni–N bonds newly appeared. The elemental C/N ratios and N amounts, which were determined through XPS measurements, changed significantly from 1.05 (CN) to 2.86 (Ni@Ni-NC), and from 47.1 (CN) to 20.5 atom % (Ni@Ni-NC) (Table S2).…”

Section: Results and Discussionmentioning

confidence: 99%

Ni Nanoparticles on Ni Core/N-Doped Carbon Shell Heterostructures for Electrocatalytic Oxygen Evolution

Seok

Choi

Lee

et al. 2021

ACS Appl. Nano Mater.

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Supported Ni-based nanocatalysts have attracted much attention to replace noble metal catalysts (e.g., IrO2) for the oxygen evolution reaction (OER) due to their low costs. However, their low activity is the main hindrance for their use in the practical OER application. In this study, a Ni-based core–shell material (Ni@Ni-NC) is produced through the heat treatment of a mixture of urea and NiCl2·(H2O)6. Multiple analysis data reveal that the Ni@Ni-NC consists of a Ni nanoparticle core and several tens of nanometer-thick, N-doped carbon (NC) shell materials, in which atomically attached Ni-based species were homogeneously distributed. Ni@Ni-NC exhibits excellent electrocatalytic OER performance with over- and onset potentials of 371 mV and 1.51 V, respectively, which are better than those of commercial IrO2. As control samples, structural and electrochemical properties of various composites (Ni nanoparticles + N-doped graphene, Ni nanoparticles + C3N4, atomically dispersed Ni on a C3N4 surface) and acid-treated Ni@Ni-NC are investigated. These experiments reveal that the well-dispersed Ni–NC species and core–shell structures play pivotal roles in improving the electrocatalytic OER performance. Furthermore, density functional theory (DFT) calculations suggest the dual-site OER mechanism of the Ni–NC active species with a significantly low reaction barrier. The mechanisms for the formation of core–shell structures are studied with control samples, which are produced from different heating times, and DFT calculation suggested that the core/shell structure formation is attributed to the cohesive energy of the Ni particles and strong bonds between the Ni and NC supports. This work provides a facile strategy for designing supported Ni catalysts with core–shell architecture for electrocatalytic reactions and other advanced applications.

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“…Response surface methodology (RSM) is a statistical technique that entails factorial design and regression analysis. It is used to determine the relative relevance of individual elements and their interacting controls 37 . The most often used response surface approaches are central composite and Box-Behnken 38 .…”

Section: Introductionmentioning

confidence: 99%

Sulfonated graphene oxide impregnated cellulose acetate floated beads for adsorption of methylene blue dye: optimization using response surface methodology

Basha

El-Monaem

Khalifa

et al. 2022

Sci Rep

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New multi-featured adsorbent beads were fabricated through impregnation of sulfonated graphene (SGO) oxide into cellulose acetate (CA) beads for fast adsorption of cationic methylene blue (MB) dye. The formulated SGO@CA composite beads were thoroughly characterized by several tools including FTIR, TGA, SEM, XRD, XPS and zeta potential. The optimal levels of the most significant identified variables affecting the adsorption process were sequential determined by the response surface methodology (RSM) using Plackett–Burman and Box–Behnken designs. The gained results denoted that the surface of SGO@CA beads displayed the higher negative charges (− 42.2 mV) compared to − 35.7 and − 38.7 mV for pristine CA and SGO, respectively. In addition, the floated SGO@CA beads demonstrated excellent floating property, fast adsorption and easy separation. The adsorption performance was accomplished rapidly, since the adsorption equilibrium was closely gotten within 30 min. Furthermore, the adsorption capacity was greatly improved with increasing SGO content from 10 to 30%. The obtained data were followed the pseudo-second order kinetic model and agreed with Langmuir adsorption isotherm model with a maximum adsorption capacity reached 234.74 mg g−1. The thermodynamic studies designated the spontaneity and endothermic nature of MB dye adsorption. Besides, the floated beads exposed acceptable adsorption characteristics for six successive reuse cycles, in addition to their better adsorption selectivity towards MB dye compared to cationic crystal violet and anionic Congo red dyes. These findings assume that the formulated SGO@CA floated beads could be used effectively as highly efficient, easy separable and reusable adsorbents for the fast removal of toxic cationic dyes.

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Application of Fe-based metal-organic framework and its pyrolysis products for sulfonamide treatment

Cited by 35 publications

References 86 publications

Bioplastic (poly-3-hydroxybutyrate) production by the marine bacterium Pseudodonghicola xiamenensis through date syrup valorization and structural assessment of the biopolymer

Bioplastic (poly-3-hydroxybutyrate) production by the marine bacterium Pseudodonghicola xiamenensis through date syrup valorization and structural assessment of the biopolymer

Ni Nanoparticles on Ni Core/N-Doped Carbon Shell Heterostructures for Electrocatalytic Oxygen Evolution

Sulfonated graphene oxide impregnated cellulose acetate floated beads for adsorption of methylene blue dye: optimization using response surface methodology

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