Enthralling Adsorption of Different Dye and Metal Contaminants from Aqueous Systems by Cobalt/Cobalt Oxide Nanocomposites Derived from Single‐Source Molecular Precursors

Mohammad, Akbar; Ansari, Shagufi Naz; Chaudhary, Archana; Ahmad, Khursheed; Rajak, Richa; Tauqeer, Mohd.; Mobin, Shaikh M.

doi:10.1002/slct.201703169

Cited by 9 publications

(4 citation statements)

References 64 publications

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“…Further, dyes dissolved in water will absorb more sunlight, so that the photosynthetic capacity of aquatic organisms will be inhibited. [47,48] The prepared N-ZIF-(0:1)@NiCo-LDH catalyst was used in the catalytic reduction of MO and MB using NaBH 4 as reductant, the progress of which was analyzed with UV-visible spectrometry. As shown in Figure 10, the characteristic absorption peaks of MO and MB in water solution appeared at 462 and 664 nm, respectively.…”

Section: Catalytic Reduction Of 4-np and Dyesmentioning

confidence: 99%

Hollow N‐ZIFs@NiCo‐LDH as highly efficient catalysts for 4‐nitrophenol and dyes

Lin

Duan

Zhao

2020

Applied Organom Chemis

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N‐ZIF‐(1:0)@NiCo‐LDH, N‐ZIF‐(1:3.5)@NiCo‐LDH and N‐ZIF‐(0:1)@NiCo‐LDH were prepared by mixing solvents in various volume ratios (Vmethanol:Vwater = 1:0, 1:3.5 and 0:1) when synthesizing precursors. These composite materials were characterized using scanning and transmission electron microscopies, X‐ray diffraction, X‐ray photoelectron spectroscopy and nitrogen adsorption–desorption measurements, and investigated as catalysts for reduction of 4‐nitrophenol, methyl orange and methylene blue. The NaBH4 concentration as an important factor that may affect catalytic activity for reduction of 4‐nitrophenol was examined. Under optimal experimental conditions, the excellent catalytic activity of the N‐ZIF‐(0:1)@NiCo‐LDH composite, compared to that of N‐ZIF‐(1:0)@NiCo‐LDH and N‐ZIF‐(1:3.5)@NiCo‐LDH composites, could be attributed to the presence of graphitic nitrogen. In addition, compared with previously reported catalysts, all catalysts prepared show excellent catalytic activity owing to the unique structure exposing more active sites.

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Section: Catalytic Reduction Of 4-np and Dyesmentioning

confidence: 99%

Hollow N‐ZIFs@NiCo‐LDH as highly efficient catalysts for 4‐nitrophenol and dyes

Lin

Duan

Zhao

2020

Applied Organom Chemis

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“…At present, the energy crisis, environmental pollution, and food safety related issues are major concerns which demand extensive attention [1][2][3]. Ensuring the safety of food is a critical priority for public health, especially when it comes to agricultural products that play a vital role in providing essential nutrition to the population [4].…”

Section: Introductionmentioning

confidence: 99%

Hydrothermally Synthesized MoS2 as Electrochemical Catalyst for the Fabrication of Thiabendazole Electrochemical Sensor and Dye Sensitized Solar Cells

Khan,

Ahmad,

Raza

et al. 2024

Catalysts

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In this work we reported the hydrothermal preparation of molybdenum disulfide (MoS2). The phase purity and crystalline nature of the synthesized MoS2 were examined via the powder X-ray diffraction method. The surface morphological structure of the MoS2 was examined using scanning electron microscopy and transmission electron microscopy. The specific surface area of the MoS2 was calculated using the Brunauer-Emmett-Teller method. The elemental composition and distribution of the Mo and S elements were determined using energy-dispersive X-ray spectroscopy. The oxidation states of the Mo and S elements were studied through employing X-ray photoelectron spectroscopy. In further studies, we modified the active surface area (3 mm) of the glassy carbon (GC) electrode using MoS2 as an electrocatalyst. The MoS2 modified GC electrode (MSGC) was used as an electrochemical sensor for the detection of thiabendazole (TBZ). Linear sweep voltammetry (LSV) was used as the electrochemical sensing technique. The MSGC exhibited good performance in the detection of TBZ. A limit of detection of 0.1 µM with a sensitivity of 7.47 µA/µM.cm2 was obtained for the detection of TBZ using the LSV method. The MSGC also showed good selectivity for the detection of TBZ in the presence of various interfering compounds. The obtained results showed that MoS2 has good electrocatalytic properties. This motivated us to explore the catalytic properties of MoS2 in dye sensitized solar cells (DSSCs). Thus, we have fabricated DSSCs using MoS2 as a platinum-free counter electrode material. The MoS2 counter electrode-based DSSCs showed good power conversion efficiency of more than 5%. We believe that the present work is beneficial for the scientific community, and especially for research surrounding the design and fabrication of catalysts for electrochemical sensing and DSSC applications.

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“…In the present scenario, the design and fabrication of bi-functional or multi-functional materials received extensive attention for various optoelectronic and electrochemical applications [1][2][3]. It is of great significance to summarize the bi-functional properties of such materials towards the development of perovskite solar cells (PSCs) and electrochemical biosensors [4][5][6]. The PSCs have been proven as the most efficient thin film-based photovoltaic technology compared to the conventional solar cells [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Titanium Carbide (Ti3C2Tx) MXene as Efficient Electron/Hole Transport Material for Perovskite Solar Cells and Electrode Material for Electrochemical Biosensors/Non-Biosensors Applications

Niyitanga,

Chaudhary,

Ahmad

et al. 2023

Micromachines

Self Cite

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Recently, two-dimensional (2D) MXenes materials have received enormous attention because of their excellent physiochemical properties such as high carrier mobility, metallic electrical conductivity, mechanical properties, transparency, and tunable work function. MXenes play a significant role as additives, charge transfer layers, and conductive electrodes for optoelectronic applications. Particularly, titanium carbide (Ti3C2Tx) MXene demonstrates excellent optoelectronic features, tunable work function, good electron affinity, and high conductivity. The Ti3C2Tx has been widely used as electron transport (ETL) or hole transport layers (HTL) in the development of perovskite solar cells (PSCs). Additionally, Ti3C2Tx has excellent electrochemical properties and has been widely explored as sensing material for the development of electrochemical biosensors. In this review article, we have summarized the recent advances in the development of the PSCs using Ti3C2Tx MXene as ETL and HTL. We have also compiled the recent progress in the fabrication of biosensors using Ti3C2Tx-based electrode materials. We believed that the present mini review article would be useful to provide a deep understanding, and comprehensive insight into the research status.

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Enthralling Adsorption of Different Dye and Metal Contaminants from Aqueous Systems by Cobalt/Cobalt Oxide Nanocomposites Derived from Single‐Source Molecular Precursors

Cited by 9 publications

References 64 publications

Hollow N‐ZIFs@NiCo‐LDH as highly efficient catalysts for 4‐nitrophenol and dyes

Hollow N‐ZIFs@NiCo‐LDH as highly efficient catalysts for 4‐nitrophenol and dyes

Hydrothermally Synthesized MoS2 as Electrochemical Catalyst for the Fabrication of Thiabendazole Electrochemical Sensor and Dye Sensitized Solar Cells

Titanium Carbide (Ti3C2Tx) MXene as Efficient Electron/Hole Transport Material for Perovskite Solar Cells and Electrode Material for Electrochemical Biosensors/Non-Biosensors Applications

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