Advances in nanomaterials induced biohydrogen production using waste biomass

Srivastava, Neha; Srivastava, Manish; Mishra, Puranjan; Kausar, Mohd Adnan; Saeed, Mοhd; Gupta, Vijai Kumar; Singh, R. P.; Ramteke, Pramod W.

doi:10.1016/j.biortech.2020.123094

Cited by 106 publications

(25 citation statements)

References 95 publications

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“…Another category is metal oxide nanoparticles, also called nanostructured semiconductors (i.e., titanium dioxide, silver oxide, zinc oxide, among others) [158][159][160][161]. These nanomaterials are widely investigated in catalytic systems with an emphasis on developing environmentally correct processes that can promote environmental recovery in environments contaminated with waste or effluents, and even in the search for sustainable development, producing value-added molecules from renewable sources [162][163][164][165].…”

Section: Relationship Between Nanotechnology and Sustainable Developmentmentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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Plastics are ubiquitous in our society and are used in many industries, such as packaging, electronics, the automotive industry, and medical and health sectors, and plastic waste is among the types of waste of higher environmental concern. The increase in the amount of plastic waste produced daily has increased environmental problems, such as pollution by micro-plastics, contamination of the food chain, biodiversity degradation and economic losses. The selective and efficient conversion of plastic waste for applications in environmental remediation, such as by obtaining composites, is a strategy of the scientific community for the recovery of plastic waste. The development of polymeric supports for efficient, sustainable, and low-cost heterogeneous catalysts for the treatment of organic/inorganic contaminants is highly desirable yet still a great challenge; this will be the main focus of this work. Common commercial polymers, like polystyrene, polypropylene, polyethylene therephthalate, polyethylene and polyvinyl chloride, are addressed herein, as are their main physicochemical properties, such as molecular mass, degree of crystallinity and others. Additionally, we discuss the environmental and health risks of plastic debris and the main recycling technologies as well as their issues and environmental impact. The use of nanomaterials raises concerns about toxicity and reinforces the need to apply supports; this means that the recycling of plastics in this way may tackle two issues. Finally, we dissert about the advances in turning plastic waste into support for nanocatalysts for environmental remediation, mainly metal and metal oxide nanoparticles.

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Section: Relationship Between Nanotechnology and Sustainable Developmentmentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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“…Hydrogen gas is a clean energy source (combustion product is water). [ 22–27 ] It can be generated using several methods such as water splitting or phototrophic microorganisms. [ 22,23,25–29 ] Other methods, [ 30,31 ] including the hydrolysis of hydride (e.g., sodium borohydride, NaBH 4 ), are promising for applications such as direct borohydride fuel cells.…”

Section: Introductionmentioning

confidence: 99%

“…[ 22–27 ] It can be generated using several methods such as water splitting or phototrophic microorganisms. [ 22,23,25–29 ] Other methods, [ 30,31 ] including the hydrolysis of hydride (e.g., sodium borohydride, NaBH 4 ), are promising for applications such as direct borohydride fuel cells. [ 32–34 ] Hydrides offer the production of onboard H 2 for applications, [ 35,36 ] such as uncrewed airplanes, fuel‐cell applications, [ 37 ] and proton‐exchange membrane fuel cells.…”

Section: Introductionmentioning

confidence: 99%

Zeolitic imidazolate frameworks (ZIF‐8, ZIF‐67, and ZIF‐L) for hydrogen production

Abdelhamid

2021

Applied Organom Chemis

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Hydride materials have good performance for hydrogen (H2) gas storage and release. The release of H2 gas from hydrides via the hydrolysis process can be improved or controlled using a catalyst. Herein, benzoic acid (BA) and hexamethylenetetramine (HMTA) modulate the synthesis of hierarchical porous zeolitic imidazolate framework‐8 (HFZIF‐8, Zn‐based metal organic frameworks [MOFs]), ZIF‐67 (Co‐based MOFs), and leaf‐like ZIF (ZIF‐L). The mechanistic study for the synthesis procedure of ZIF‐8 revealed an in situ synthesis of zinc hydroxide nitrate nanosheets (100‐ to 150‐nm thickness) with an interplanar distance of 0.97 nm between the layers of zinc hydroxide, Zn5(OH)82+. X‐ray diffraction (XRD) data indicated that benzoate ions replaced nitrate ions (2NO3−) between Zn5(OH)82+ layers leading to an increase in the interplanar distance (from 0.97 nm to 1.9 nm). Zinc hydroxide benzoate nanosheets showed a fast conversion into HPZIF‐8 at room temperature. The concentration of BA and HMTA tuned the porosity of HPZIF‐8, offering a hierarchical micropore–mesopore structure. The prepared materials increased the hydrolysis rate of sodium borohydride. ZIF‐8 and ZIF‐67 prepared using BA showed high catalytic performance in terms of efficiency and reaction time compared with other materials. The result's findings open new avenues for the synthesis of adequate materials for hydrogen generation via the hydrolysis of hydrides.

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“…These temperature and pH stable enzymes are highly demanding in biomass to biofuels industries 6 . Cellulolytic enzymes which possess such thermo and pH stable properties are notably found in fungal strains and therefore are always preferred to produce cellulase enzyme over the bacterial strains due to the high cellulolytic index 7 , 8 .…”

Section: Introductionmentioning

confidence: 99%

Sustainable green approach to synthesize Fe3O4/α-Fe2O3 nanocomposite using waste pulp of Syzygium cumini and its application in functional stability of microbial cellulases

Srivastava

Alhazmi

et al. 2021

Sci Rep

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Synthesis of nanomaterials following green routes have drawn much attention in recent years due to the low cost, easy and eco-friendly approaches involved therein. Therefore, the current study is focused towards the synthesis of Fe3O4/α-Fe2O3 nanocomposite using waste pulp of Jamun (Syzygium cumini) and iron nitrate as the precursor of iron in an eco-friendly way. The synthesized Fe3O4/α-Fe2O3 nanocomposite has been extensively characterized through numerous techniques to explore the physicochemical properties, including X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, Ultraviolet-Vis spectroscopy, field emission scanning electron microscope, high resolution transmission electron microscope and vibrating sample magnetometer. Further, efficiency of the Fe3O4/α-Fe2O3 nanocomposite has been evaluated to improve the incubation temperature, thermal/pH stability of the crude cellulase enzymes obtained from the lab isolate fungal strain Cladosporium cladosporioides NS2 via solid state fermentation. It is found that the presence of 0.5% Fe3O4/α-Fe2O3 nanocomposite showed optimum incubation temperature and thermal stability in the long temperature range of 50–60 °C for 15 h along with improved pH stability in the range of pH 3.5–6.0. The presented study may have potential application in bioconversion of waste biomass at high temperature and broad pH range.

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Advances in nanomaterials induced biohydrogen production using waste biomass

Cited by 106 publications

References 95 publications

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

Zeolitic imidazolate frameworks (ZIF‐8, ZIF‐67, and ZIF‐L) for hydrogen production

Sustainable green approach to synthesize Fe3O4/α-Fe2O3 nanocomposite using waste pulp of Syzygium cumini and its application in functional stability of microbial cellulases

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