Electronic and nanostructure engineering of bifunctional MoS2 towards exceptional visible-light photocatalytic CO2 reduction and pollutant degradation

Khan, Bilawal; Raziq, Fazal; Faheem, M. Bilal; Farooq, M. Umar; Hussain, Sadam; Ali, Farman; Ullah, Abid; Mavlonov, Abdurashid; Zhao, Yang; Liu, Zhongran; Tian, He; Shen, Huahai; Zu, Xiaotao; Li, Sean; Xiao, Haiyan; Xi, Xiang

doi:10.1016/j.jhazmat.2019.120972

Cited by 101 publications

(56 citation statements)

References 65 publications

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“…Various metal oxides, hydroxides, nitrogen sulfides, and polymers are considered as excellent pseudocapacitive material. Although metal oxides are selected as primary materials for pseudocapacitive behavior, low dielectric potential between the electrode and electrolyte hinders rapid electron transport [14][15][16] . Nowadays, transition metal chalcogenides (MCs) have been received much attention and interest in creating superior electrode materials in supercapacitor usage because of their exceptional physical, chemical and anisotropic properties.…”

mentioning

confidence: 99%

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Isacfranklin

Yuvakkumar

Ravi

et al. 2020

Sci Rep

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The growth in energy devices and the role of supercapacitors are increasingly important in today’s world. Designing an electrode material for supercapacitors using metals that have high performance, superior structure, are eco-friendly, inexpensive and highly abundant is essentially required for commercialization. In this point of view, quaternary chalcogenide Cu2NiSnS4 with fascinating marigold flower like microstructured electrodes are synthesized using different concentrations of citric acid (0, 0.05 M, 0.1 M and 0.2 M) by employing solvothermal method. The electrode materials physicochemical characteristics are deliberated in detail using the basic characterization techniques. The electrochemical studies revealed better electrochemical performances, in particular, Cu2NiSnS4@0.1 M-CA electrode revealed high 1029 F/g specific capacitance at 0.5 A/g current density. Further, it retained 78.65% capacity over 5000 cycles. To prove the practical applicability, a full-cell asymmetric solid-state device is fabricated, and it delivered 41.25 Wh/Kg and 750 Wh/Kg energy and power density at 0.5 A/g. The optimum citric acid added Cu2NiSnS4 electrode is shown to be a promising candidate for supercapacitor applications.

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confidence: 99%

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Isacfranklin

Yuvakkumar

Ravi

et al. 2020

Sci Rep

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“…In contrast to pristine MoS 2 , MoS 2 /Ag/SnO 2 demonstrated a nearly 10‐fold increase in methane production. [ 105 ]…”

Section: Binary Metal Sulfide Photocatalystsmentioning

confidence: 99%

Nanostructured Metal Sulfides: Classification, Modification Strategy, and Solar‐Driven CO₂ Reduction Application

Wang

Lin

Tian

et al. 2020

Adv Funct Materials

265

170

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Solar‐driven conversion of CO2 into high value‐added fuels is expected to be an environmental‐friendly and sustainable approach for relieving the greenhouse gas effect and countering energy crisis. Metal sulfide semiconductors with wide photoresponsive range and favorable band structures are suitable photocatalysts for CO2 photoreduction. This review summarizes the recent progress on metal sulfide semiconductors for photocatalytic CO2 reduction. First, the fundamentals, mechanisms and some principles, like product selectivity, of photocatalytic CO2 reduction are introduced. Then, according to the elemental composition, the metal sulfide photocatalysts applied for CO2 reduction are classified into binary (CdS, ZnS, MoS2, SnS2, Bi2S3, In2S3,Cu2S, NiS/NiS2, and CoS2), ternary (ZnIn2S4, CdIn2S4, CuInS2, Cu3SnS4, and CuGaS2), and quaternary (Cu2ZnSnS4) systems, in which their crystal structures, photochemical characteristics, and photocatalytic CO2 reduction applications are systematically demonstrated. Especially, the diverse modification strategies for improving the activity and product selectivity of photocatalytic CO2 reduction on these metal sulfides are summarized. Finally, the current challenges and future directions for the development of metal sulfide photocatalysts for CO2 reduction are proposed. This review is expected to serve as a powerful reference for exploiting high‐efficiency metal sulfide photocatalysts for CO2 conversion and furthering related mechanism understanding.

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“…Dimensional changes like out of a plane (ΔTc) that change in thickness of the dry and wet membrane can be calculated by using a screw gauge and measured by using Equation (4). In the plane (ΔLc) that changes in the length of the film, films were determined by using Vernier caliper and measured using Equation ( 5) and the ratio of change in thickness to change in length was measured using Equation (6).…”

Section: Dimensional Changesmentioning

confidence: 99%

“…3 Presently, utilization of natural resources of fossil fuels is rapid because the increase in population rate is quite high which demands alternative environment-friendly energy resources. [4][5][6] One such way which can help to have a balance between demand and consumption of energy can be achieved using photovoltaic technologies in an environment-friendly atmosphere. 7 In today's world research studies providing a more promising solution to overcome energy crises gain warm attention.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of clay‐armored coatable sulfonated polyimide nanocomposites as robust polyelectrolyte membranes

Ali

Said

et al. 2021

J of Applied Polymer Sci

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Herein, coatable sulfonated polyimide (SPI) and clay-reinforced SPI membranes SPI-clay 3%, SPI-clay 5%, and SPI-clay 7% were successfully fabricated by one-step high temperature via direct imidization method. The membranes were cast as a coatable thin film using a solution casting method and grafted vermiculite clay nanoparticle were incorporated into the neat SPI as reinforcement by the sonication method. Three different formulated nanocomposite membranes were investigated using different characterization techniques such as Fourier transform infrared spectroscopy as peaks at 1166 and 1227 cm À1 confirmed successful sulfonation. In Proton ( 1 H) NMR synthesis of SPI confirmed as aromatic proton at 7.3-8.8 ppm depicts successful sulfonation and X-ray diffraction results confirmed the crystalline structure of clay, as its content increased (7%) clear diffraction peak arises at 6 and 25 . Scanning electron microscopy (SEM) provides information about surface morphology of clay reinforced SPI membranes, and SEM micrographs shown uniform dispersion of clay nanofillers and developed easy transfer of electron. Thermogravimetric analysis was performed to investigate the thermal stability of synthesized films, results of thermographs shown degradation in the range of 510-600 C. Different physicochemical parameters employed and their results show the effectiveness of synthesized clay reinforced SPI membranes. Water uptake (WU%) about 0.96%, hydrolytic about 98 h and oxidative stability up to 80 C, ions exchange capacity about 3.16 mmol/g for synthesized clay reinforced SPI membranes. Measurement regarding Dimensional changes was also investigated and dimensional changes (1.557 Δt/Δl). All these results reveal that the clay-reinforced coatable SPI membranes are a promising material for polymer electrolyte membranes to be used in fuel cell energy applications.

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Electronic and nanostructure engineering of bifunctional MoS2 towards exceptional visible-light photocatalytic CO2 reduction and pollutant degradation

Cited by 101 publications

References 65 publications

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Nanostructured Metal Sulfides: Classification, Modification Strategy, and Solar‐Driven CO₂ Reduction Application

Synthesis of clay‐armored coatable sulfonated polyimide nanocomposites as robust polyelectrolyte membranes

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Electronic and nanostructure engineering of bifunctional MoS2 towards exceptional visible-light photocatalytic CO2 reduction and pollutant degradation

Cited by 101 publications

References 65 publications

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Marigold flower like structured Cu2NiSnS4 electrode for high energy asymmetric solid state supercapacitors

Nanostructured Metal Sulfides: Classification, Modification Strategy, and Solar‐Driven CO2 Reduction Application

Synthesis of clay‐armored coatable sulfonated polyimide nanocomposites as robust polyelectrolyte membranes

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Nanostructured Metal Sulfides: Classification, Modification Strategy, and Solar‐Driven CO₂ Reduction Application