Carbon-based TiO2-x heterostructure nanocomposites for enhanced photocatalytic degradation of dye molecules

Sriramoju, Jagadeesh Babu; Muniyappa, Murthy; Marilingaiah, Navya Rani; Chetana, S.; Shetty, Manjunath; Mudike, Ravi; C.P, Chitrabanu; Shivaramu, Prasanna D.; Nagaraju, G.; Rangappa, Kanchugarakoppal S.; C.S, Ananda Kumar; Rangappa, Dinesh

doi:10.1016/j.ceramint.2020.12.014

Cited by 31 publications

(9 citation statements)

References 44 publications

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“…These include but are not limited to energy storage, optoelectronics, electronics, communications, biomedicine, adsorption, as well as gas and liquid separations, illustrating their broad range of potential applications. [27][28][29][30][31][32][33][34][35][36][37] MXenes have already shown their potential in several research areas, including hybrid materials, energy storage devices, electromagnetic interference shielding, and nanocomposites. [38][39][40][41] In parallel, brand-new fields are emerging where MXenes excel above other nanomaterials, such as tribology.…”

Section: Background On Energy Storage Technologiesmentioning

confidence: 99%

“…Hexagonal boron nitride, layered double hydroxides, graphene, graphitic carbon nitride, transition metal dichalcogenides (TMDs), black phosphorus (BP), silicone, and MXenes are all considered intriguing materials due to their exceptional electronic, chemical, physical, mechanical, and optical properties. [32][33][34][35][36][37]141 The energy demand is on the rise, and finding an efficient and eco-friendly way to gather and store energy is the challenge of the 21st century. The search for affordable energy sources and the commercialization of emerging technology are also key challenges.…”

Section: Electrochemical Performance Of Mxene Hybrid Compositesmentioning

confidence: 99%

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Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

Mohd Abdah,

Thakur

et al. 2023

J. Electrochem. Soc.

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MXenes are an emerging class of two-dimensional transition metal carbides and nitrides with metallic conductivity and hydrophilic surfaces. The discovery of MXenes has opened new possibilities for developing advanced hybrid composites for energy storage and conversion applications. This review summarizes recent advances in developing MXene-based hybrid composites, including their synthesis, characterization, and electrochemical performance. The heterostructure of MXenes with nanocarbons, metal oxides, polymers, and other nanomaterials can overcome the limitations of pristine MXenes and lead to enhanced lithium/sodium-ion storage, pseudocapacitive performance, and electrocatalytic activity. Various fabrication techniques have been employed to synthesize MXene composites with controlled nanostructures, morphology, and interfacial properties. Characterization by microscopy, spectroscopy, and electrochemical methods has shed light on structure-property relationships in these materials. As electrode materials, properly designed MXene hybrids have achieved high specific capacity, excellent rate capability, and long-term stability. The review also discusses strategies for further improving MXene composite energy storage performance, as well as emerging applications such as thermoelectrics and photocatalysis. Continued research to understand interfacial effects and optimize MXene heterostructures holds promise for developing next-generation energy storage technologies.

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Section: Background On Energy Storage Technologiesmentioning

confidence: 99%

Section: Electrochemical Performance Of Mxene Hybrid Compositesmentioning

confidence: 99%

Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

Mohd Abdah,

Thakur

et al. 2023

J. Electrochem. Soc.

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“…Cobalt sulphide can serve as a pseudocapacitor, while graphene acts as an EDLCs source and increases the composite's conductivity, surface area, and porosity [22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

A facile supercritical fluid synthesis of cobalt sulfide integrated with MXene and PANI/PDOT nanocomposites as electrode material for supercapacitor applications

Chetana

Upadhyay

Joshi

et al. 2022

Preprint

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We report the synthesis of ternary CoS/MXene/PANI and CoS/MXene/ PEDOT composites using supercritical fluid (SCF) method for the first time. These fabricated materials along with CoS/MXene was gone through electrochemical investigations using three electrode system. Enhancement in specific capacitance was observed with inclusion of PANI (407 F/g) and further enhanced with PEDOT (630 F/g) at 2 A/g. Therefore, symmetric device using coin cell technique was fabricated by taking CoS/MXene/PEDOT and CoS/MXene/PANI as electrode material. These coin cells were further be examined on the basis of CV, GCD and EIS and it was observed that the specific capacitance was enhance in CoS/MXene/PEDOT (331.1 F/g) over CoS/MXene/PANI (246 F/g) at 2 A/g. For the material, the capacitance retention was calculated to evaluate the charge storage stability and it was observed that the CoS/MXene/PEDOT (97%) is slightly higher stable than CoS/MXene/PANI (96%).

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“…Photocatalysts are not directly involved in the oxidation reaction; however, it is known that the main reactions involved in photocatalytic degradations are the electronhole interfacial redox reactions, which are generated when the photocatalyst is subjected to light of sufficient energy [13]; they create high levels of oxidizing species (OH, O 2− ) that cause complex organic molecules to degrade in the presence of light due to the difference in potential between oxidizing species and the organic matter [11,16]. Different types of photocatalysts have been used for dye degradation in wastewater, such as metals and metal oxides [2,17,18], carbon-based nanostructures [19,20], semiconductors [21,22], and metal-organic frameworks (MOFs) [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Photodegradation of Carbol Fuchsin Dye Using an Fe2−xCuxZr2−xWxO7 Photocatalyst under Visible-Light Irradiation

et al. 2021

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Fe2−xCuxZr2−xWxO7 (x: 0, 0.05, 0.015) nanoparticles were synthesized following the Pechini method and characterized via X-ray diffraction (XRD), transmission electron microscopy (TEM), and diffuse reflectance spectroscopy (DRS) measurements to be used as photocatalysts in colored water remediation. All of the prepared materials were crystallized in a cubic fluorite phase as the major phase. The band gap was reduced upon doping with W6+ and Cu2+ from 1.96 eV to 1.47 eV for Fe1.85Cu0.15Zr1.85W0.15O7. Carbol fuchsin (CF) dye was used to determine the photocatalytic degradation efficiency of the prepared catalysts. Degradation efficiency was directly proportional to the dopant’s concentration. Complete removal of 20 mg/L CF was achieved under optimal conditions (pH 9, and catalyst loading of 1.5 g/L) using Fe1.85Cu0.15Zr1.85W0.15O7. The degradation rate followed pseudo-first-order kinetics. The reusability for photocatalysts was tested five times, decreasing its efficiency by 4% after the fifth cycle, which indicates that the prepared Fe1.85Cu0.15Zr1.85W0.15O7 photocatalyst is a promising novel photocatalyst due to its superior efficiency in dye photodegradation.

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Carbon-based TiO2-x heterostructure nanocomposites for enhanced photocatalytic degradation of dye molecules

Cited by 31 publications

References 44 publications

Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

Progress and Prospects of MXene-Based Hybrid Composites for Next-Generation Energy Technology

A facile supercritical fluid synthesis of cobalt sulfide integrated with MXene and PANI/PDOT nanocomposites as electrode material for supercapacitor applications

Photodegradation of Carbol Fuchsin Dye Using an Fe2−xCuxZr2−xWxO7 Photocatalyst under Visible-Light Irradiation

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