A hyperaccumulation pathway to hierarchically porous carbon nanosheets from halophyte biomass for wastewater remediation

Mahto, Ashesh; Singh, Ankit; Aruchamy, Kanakaraj; Maraddi, Ashok; Bhadu, Gopala Ram; Kotrappanavar, Nataraj Sanna; Meena, Ramavatar

doi:10.1016/j.susmat.2021.e00292

Cited by 4 publications

(6 citation statements)

References 35 publications

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“…26 First, biotemplates have the advantages of vast sources, strong renewability, low cost, etc. 27 Second, natural biotemplates have unique structures, including needle-like biological calcification tubes, sea urchin-like pollen, spherical chlorella, and spiral spirulina. Their unique structure is shown in Fig.…”

Section: Mater Horizmentioning

confidence: 99%

“…19 Fourth, the thermal stability of a biotemplate is poor and can be volatilized by high-temperature pyrolysis and carbonization without residue. 27 Finally, biotemplates, as drug carriers, are non-toxic and harmless to the body and have good biocompatibility. 32 It is worth mentioning that living organisms self-propelled micro/nanorobots providing unique advantages for their applications because they can achieve active propulsion without external fuels or energies.…”

Section: Mater Horizmentioning

confidence: 99%

See 1 more Smart Citation

Intelligent micro/nanorobots based on biotemplates

Chen,

Cai,

Ren

et al. 2024

Mater. Horiz.

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Section: Mater Horizmentioning

confidence: 99%

Section: Mater Horizmentioning

confidence: 99%

Intelligent micro/nanorobots based on biotemplates

Chen,

Cai,

Ren

et al. 2024

Mater. Horiz.

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show abstract

“…This process involves the partial removal of hemicellulose and lignin, which facilitates the separation of layered cellulose fibers into sheets during high-temperature carbonization . In addition, removing intrinsic salt in plant fibers favors the formation of carbon nanosheets . Obviously, the selective removal of non-cellulosic components in plant fibers and the swelling of layer-by-layer packed cellulose are promising strategies for constructing sheet-like biochar.…”

Section: Introductionmentioning

confidence: 99%

“…8 In addition, removing intrinsic salt in plant fibers favors the formation of carbon nanosheets. 9 Obviously, the selective removal of non-cellulosic components in plant fibers and the swelling of layer-by-layer packed cellulose are promising strategies for constructing sheet-like biochar. However, current activation procedures are characterized by high cost, high energy consumption, and potential second pollutions (e.g., sulfuric acid, KOH, and other toxic agents).…”

Section: ■ Introductionmentioning

confidence: 99%

Sustainable Biochar Nanosheets Derived from Sweet Sorghum Residues via Superbase Pretreatment

Lu,

Cai,

Han

et al. 2023

Langmuir

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Two-dimensional (2D) sheet-like biochar as promising alternatives to graphene nanosheets has gained significant attention in materials science while being highly restricted by its complicated synthetic steps. In this study, the dimethyl sulfoxide/potassium hydroxide (DMSO/KOH) superbase system was first used to pretreat sweet sorghum residues (SS) and then carbonized to prepare sheet-like biochar. Ascribing to the strong nucleophilicity of DMSO/KOH, a synergistic effect was achieved by partially removing non-cellulosic components in SS and swelling the amorphous region of cellulose, leaving more layered cellulose behind (∼46.5 wt %), which was favorable for the formation of 2D biochar nanosheets with high graphitization degrees (∼93.1%). This strategy was also suitable for other biomass fibers (e.g., straw, wood powders, and nuclear shells) to obtain sheet-like biochar. The resulting sheet-like biochar could be compounded with cellulose nanofibers to achieve the structural design of composites and solve the molding problem of biochar, which was beneficial for dyeing wastewater treatment. Thus, this work provides insight into a simple strategy for developing 2D ultrathin sheet-like biochar from sustainable biomass wastes.

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“…Carbon nanosheets (CNSs) are stable and flexible structures with vast applications in sensors, filtration, coatings, batteries, transistors, water filtration, antennas, supercapacitors, solar cells, supercapacitors, oxygen reductions and DNA sequencing [41][42][43]. A novel formation is the development of two-dimensional porous CNSs used in lithium batteries, supercapacitors, and electro-catalytic oxygen reductions [44][45][46] .…”

Section: Introductionmentioning

confidence: 99%

On Hosoya Polynomial and Subsequent Indices of C4C8(R) and C4C8(S) Nanosheets

et al. 2022

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Chemical structures are mathematically modeled using chemical graphs. The graph invariants including algebraic polynomials and topological indices are related to the topological structure of molecules. Hosoya polynomial is a distance based algebraic polynomial and is a closed form of several distance based topological indices. This article is devoted to compute the Hosoya polynomial of two different atomic configurations (C4C8(R) and C4C8(S)) of C4C8 Carbon Nanosheets. Carbon nanosheets are the most stable, flexible structure of uniform thickness and admit a vast range of applications. The Hosoya polynomial is used to calculate distance based topological indices including Wiener, hyper Wiener and Tratch–Stankevitch–Zafirov Indices. These indices play their part in determining quantitative structure property relationship (QSPR) and quantitative structure activity relationship (QSAR) of chemical structures. The three dimensional presentation of Hosoya polynomial and related distance based indices leads to the result that though the chemical formula for both the sheets is same, yet they possess different Hosoya Polynomials presenting distinct QSPR and QSAR corresponding to their atomic configuration.

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A hyperaccumulation pathway to hierarchically porous carbon nanosheets from halophyte biomass for wastewater remediation

Cited by 4 publications

References 35 publications

Intelligent micro/nanorobots based on biotemplates

Intelligent micro/nanorobots based on biotemplates

Sustainable Biochar Nanosheets Derived from Sweet Sorghum Residues via Superbase Pretreatment

On Hosoya Polynomial and Subsequent Indices of C4C8(R) and C4C8(S) Nanosheets

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