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Nayak S, Kumar Das K, Parida K. Indulgent of the physiochemical features of MgCr-LDH nanosheets towards photodegradation process of methylene blue. J Colloid Interface Sci 2023; 634:121-137. [PMID: 36535152 DOI: 10.1016/j.jcis.2022.12.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 12/01/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022]
Abstract
In the present work, we report the preparatory strategy of MgCr-layered double hydroxide (LDH) nanosheets with 90% degree of delamination by employing a formamide-assisted co-precipitation and mild hydrothermal route for the degradation of methylene blue (MB) under solar light exposure. The as-synthesized MgCr-LDH nanosheets were characterized by assorted characterization techniques such as powder X-ray diffraction (PXRD), transmission electron microscopy (TEM), field emission scanning electron microscopy (FE-SEM), Raman, thermogravimetric analysis (TGA), N2 adsorption-desorption measurement, X-ray photoelectron spectroscopy (XPS) and UV-Visible diffused reflectance spectroscopy (UV-DRS). The XRD pattern of MgCr-LDH nanosheets quantified the strain (ε) and dislocation density (δ) of 1.371 lines-2 m-4 and 0.5723 lines m-2 related to the (110) plane with d-spacing value of 1.6169 Ȧ. With a minimum band gap of ∼2.63 eV, the as-synthesized MgCr-LDH nanosheets displayed 90.6% MB photodegradation under the experimental protocols such as catalyst dosage of 30 mg/L, initial MB concentrations of 20 ppm, pH of 7 and time duration of 2 h under solar light exposure. Further, the recyclability test of the photocatalyst signifies material stability up to four successive cycles with 90% retention of MB degradation under sunlight exposure. The superior catalytic performances of the MgCr-LDH nanosheets could be ascertained to the suppression of excitonic recombination and effective light harvestation properties, synergistically contributed by the porous structural aspects via association of uni/multi-lamellar nanosheets, surface defect sites and photoactive Cr3+ cations. Additionally, the surface -OH groups of LDH contributed towards the generation of •OH radicals for triggering the catalytic performances. This type of work advances the novel ideas for establishing highly potent photocatalysts via synergizing structural and surface properties, paving towards effective wastewater treatment.
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Affiliation(s)
- Susanginee Nayak
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research (ITER), Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar 751030, Odisha, India
| | - Kundan Kumar Das
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research (ITER), Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar 751030, Odisha, India
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research (ITER), Siksha 'O' Anusandhan Deemed to be University, Bhubaneswar 751030, Odisha, India.
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Simultaneous determination of four quinolones in honey by nickel/aluminum-layered double hydroxide-based air-assisted dispersive solid-phase extraction and high-performance liquid chromatography. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01595-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Effects of Immobilized Ionic Liquid on Properties of Biodegradable Polycaprolactone/LDH Nanocomposites Prepared by In Situ Polymerization and Melt-Blending Techniques. NANOMATERIALS 2020; 10:nano10050969. [PMID: 32443604 PMCID: PMC7712423 DOI: 10.3390/nano10050969] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 04/28/2020] [Accepted: 04/30/2020] [Indexed: 11/17/2022]
Abstract
The high capacity of calcinated layered double hydroxides (LDH) to immobilize various active molecules together with their inherent gas/vapor impermeability make these nanoparticles highly promising to be applied as nanofillers for biodegradable polyester packaging. Herein, trihexyl(tetradecyl)phosphonium decanoate ionic liquid (IL) was immobilized on the surface of calcinated LDH. Thus, the synthesized nanoparticles were used for the preparation of polycaprolactone (PCL)/LDH nanocomposites. Two different methods of nanocomposite preparation were used and compared: microwave-assisted in situ ring opening polymerization (ROP) of ε-caprolactone (εCL) and melt-blending. The in situ ROP of εCL in the presence of LDH nanoparticles with the immobilized IL led to homogenous nanofiller dispersion in the PCL matrix promoting formation of large PCL crystallites, which resulted in the improved mechanical, thermal and gas/water vapor barrier properties of the final nanocomposite. The surface-bonded IL thus acted as nanofiller surfactant, compatibilizer, as well as thermal stabilizer of the PCL/LDH nanocomposites. Contrary to that, the melt-blending caused a partial degradation of the immobilized IL and led to the production of PCL nanocomposites with a heterogenous nanofiller dispersion having inferior mechanical and gas/water vapor barrier properties.
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In situ immobilization of layered double hydroxides onto cotton fiber for solid phase extraction of fluoroquinolone drugs. Talanta 2018; 186:545-553. [DOI: 10.1016/j.talanta.2018.04.100] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 04/23/2018] [Accepted: 04/29/2018] [Indexed: 11/15/2022]
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Wang X, Zhou W, Wang C, Chen Z. Cotton fiber-supported layered double hydroxides for the highly efficient adsorption of anionic organic pollutants in water. NEW J CHEM 2018. [DOI: 10.1039/c8nj00678d] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cotton fiber is used as a substrate for the immobilization of LDHs and applied for the adsorption anionic pharmaceuticals and dyes.
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Affiliation(s)
- Xuemei Wang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery
- Ministry of Education, and Wuhan University School of Pharmaceutical Sciences
- Wuhan
- China
- State Key Laboratory of Transducer Technology
| | - Wei Zhou
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery
- Ministry of Education, and Wuhan University School of Pharmaceutical Sciences
- Wuhan
- China
- State Key Laboratory of Transducer Technology
| | - Chenlu Wang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery
- Ministry of Education, and Wuhan University School of Pharmaceutical Sciences
- Wuhan
- China
| | - Zilin Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery
- Ministry of Education, and Wuhan University School of Pharmaceutical Sciences
- Wuhan
- China
- State Key Laboratory of Transducer Technology
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Mallakpour S, Hatami M. Condensation polymer/layered double hydroxide NCs: Preparation, characterization, and utilizations. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.03.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Yu S, Wang X, Chen Z, Wang J, Wang S, Hayat T, Wang X. Layered double hydroxide intercalated with aromatic acid anions for the efficient capture of aniline from aqueous solution. JOURNAL OF HAZARDOUS MATERIALS 2017; 321:111-120. [PMID: 27614324 DOI: 10.1016/j.jhazmat.2016.09.009] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Revised: 08/19/2016] [Accepted: 09/04/2016] [Indexed: 05/24/2023]
Abstract
Aniline is toxic and hard to be degraded, and thereby causes the environmental pollution seriously. Herein, a practical and green hydrothermal method was applied to fabricate terephthalic acid and pyromellitic acid intercalated layered double hydroxides (LDH) (named as TAL and PAL) for aniline efficient removal. The sorption of aniline on LDH-based materials were investigated at different experimental conditions, and the results indicated that aniline sorption on LDH, TAL and PAL were strongly dependent on pH and independent of ionic strength. The maximum sorption capacities of aniline on TAL and PAL at pH 5.0 and 293K were 90.4 and 130.0mg/g, respectively, which were significantly higher than that of aniline on LDH (52.6mg/g). Based on the BET, FTIR and XPS analysis, the higher sorption capacities of TAL and PAL were mainly due to high surface area and basal spacing as well as the abundant functional groups (e.g. -COO-). The interactions of aniline with TAL and PAL were mainly dominated by hydrogen bonds and electrostatic interactions. Such a facile synthesis method, efficient removal performance and superior reusability indicated that the aromatic acid modified LDH materials had potential application for efficient treatment of organic pollutants in environmental pollution cleanup.
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Affiliation(s)
- Shujun Yu
- School of Chemistry and Environment, North China Electric Power University, Beijing, 102206, PR China; Key Lab of New Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, 230031, Anhui, PR China
| | - Xiangxue Wang
- School of Chemistry and Environment, North China Electric Power University, Beijing, 102206, PR China; Key Lab of New Thin Film Solar Cells, Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, 230031, Anhui, PR China
| | - Zhongshan Chen
- School of Chemistry and Environment, North China Electric Power University, Beijing, 102206, PR China
| | - Jian Wang
- School of Chemistry and Environment, North China Electric Power University, Beijing, 102206, PR China
| | - Suhua Wang
- School of Chemistry and Environment, North China Electric Power University, Beijing, 102206, PR China
| | - Tasawar Hayat
- NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Department of Mathematics, Quaid-I-Azam University, Islamabad 44000, Pakistan
| | - Xiangke Wang
- School of Chemistry and Environment, North China Electric Power University, Beijing, 102206, PR China; NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, PR China.
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Dinari M, Momeni MM, Bozorgmehr Z, Karimi S. Bismuth-containing layered double hydroxide as a novel efficient photocatalyst for degradation of methylene blue under visible light. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-1021-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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