Light-dependent biohydrogen production: Progress and perspectives

Suresh, G.; Kumari, Poonam; Mohan, S. Venkata

doi:10.1016/j.biortech.2023.129007

Cited by 11 publications

(3 citation statements)

References 135 publications

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“…NADH dehydrogenase, cytochromes, and other carrier proteins transfer electrons through the quinone pool, aiding in the transfer of electrons to cytochrome and eventually ferredoxin. In its reduced state, ferredoxin donates electrons to the catalytic site of hydrogenase, where protons are combined to generate H 2 . , The use of biomass/biowaste to produce biogas is a one stone two bird approach, where we can treat the organic waste and simultaneously produce biogas. ,, But the presence of CO 2 in the biogas mixture lowers its calorific value. Pure CH 4 and H 2 have calorific values of 8500 and 2600 kcal/m 3 , respectively, whereas for the biogas mixture it varies from 4800 to 6900 kcal/m 3 . , Hence, by employing CCS technologies for biogas purification, to increase its CH 4 or H 2 content up to 80–90% in biogas, we can produce high-value bio-CH 4 and bio-H 2 (80–90%), which are clean, efficient, and sustainable sources of energy …”

Section: Introductionmentioning

confidence: 99%

“…In its reduced state, ferredoxin donates electrons to the catalytic site of hydrogenase, where protons are combined to generate H 2 . 26,27 The use of biomass/biowaste to produce biogas is a one stone two bird approach, where we can treat the organic waste and simultaneously produce biogas. 24,28,29 But the presence of CO 2 in the biogas mixture lowers its calorific value.…”

Section: ■ Introductionmentioning

confidence: 99%

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Purification of Waste-Generated Biogas Mixtures Using Covalent Organic Framework’s High CO₂ Selectivity

Paul,

Maibam,

Chatterjee

et al. 2024

ACS Appl. Mater. Interfaces

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Development of crystalline porous materials for selective CO 2 adsorption and storage is in high demand to boost the carbon capture and storage (CCS) technology. In this regard, we have developed a β-keto enamine-based covalent organic framework (VM-COF) via the Schiff base polycondensation technique. The as-synthesized VM-COF exhibited excellent thermal and chemical stability along with a very high surface area (1258 m 2 g −1 ) and a high CO 2 adsorption capacity (3.58 mmol g −1 ) at room temperature (298 K). The CO 2 /CH 4 and CO 2 /H 2 selectivities by the IAST method were calculated to be 10.9 and 881.7, respectively, which were further experimentally supported by breakthrough analysis. Moreover, theoretical investigations revealed that the carbonyl-rich sites in a polymeric backbone have higher CO 2 binding affinity along with very high binding energy (−39.44 KJ mol −1 ) compared to other aromatic carbonrich sites. Intrigued by the best CO 2 adsorption capacity and high CO 2 selectivity, we have utilized the VM-COF for biogas purification produced by the biofermentation of municipal waste. Compared with the commercially available activated carbon, VM-COF exhibited much better purification ability. This opens up a new opportunity for the creation of functionalized nanoporous materials for the large-scale purification of waste-generated biogases to address the challenges associated with energy and the environment.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Purification of Waste-Generated Biogas Mixtures Using Covalent Organic Framework’s High CO₂ Selectivity

Paul,

Maibam,

Chatterjee

et al. 2024

ACS Appl. Mater. Interfaces

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“…The second is H 2 production by photosynthetic bacteria. Photosynthetic bacteria are bacteria that grow by receiving light energy from the sun; they are classified into green sulfur bacteria, red sulfur bacteria, and red non-sulfur bacteria [6,14]. Among them, red non-sulfur bacteria use light energy to obtain reducing power from carbon sources to produce H 2 .…”

Section: Introductionmentioning

confidence: 99%

Biohydrogen Production under Aerial Conditions by a Nitrogen-Fixing Bacterium Isolated from a Steel Signboard

Aburai,

Tanaka,

Kohira

et al. 2024

Fermentation

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Hydrogen gas is attractive as a clean fuel source if it can be produced efficiently without relying on fossil fuels. Biohydrogen production using photosynthetic bacteria may enable environmentally friendly hydrogen production but is currently limited by factors such as low oxygen tolerance. In this study, we isolate a new strain of bacteria that can produce hydrogen under aerial-phase conditions compared with those under liquid-phase conditions in a nitrogen gas or an argon gas atmosphere. Bacterial strains were cultured from scrapings taken from a steel signboard. Investigation of the hydrogen production of the strains under aerial- and liquid-phase conditions and subsequent DNA sequencing led to identification of the bacterium Cereibacter sp. KGU-NF001. Aerial-phase conditions were achieved by filter membranes with the bacterial strains and placing the membranes on medium-soaked cotton wool. The gas atmosphere affected the behavior of the isolated bacterial strains under both aerial- and liquid-phase conditions. Cereibacter sp. KGU-NF001 showed promising oxygen tolerance and was able to maintain hydrogen production of 1.33 mL/mg/d even when the atmosphere contained 12% oxygen. Our findings illustrate that biohydrogen production may be achieved by photosynthetic bacteria under oxygen-containing aerial-phase conditions, indicating a possible pathway to help lower our reliance on fossil fuels.

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Living Therapeutics for Synergistic Hydrogen‐Photothermal Cancer Treatment by Photosynthetic Bacteria

Zhang,

Deng,

Xia

et al. 2024

Advanced Science

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Hydrogen gas (H2) therapy, recognized for its inherent biosafety, holds significant promise as an anti‐cancer strategy. However, the efficacy of H2 treatment modalities is compromised by their reliance on systemic gas administration or chemical reactions generation, which suffers from low efficiency, poor targeting, and suboptimal utilization. In this study, living therapeutics are employed using photosynthetic bacteria Rhodobacter sphaeroides for in situ H2 production combined with near‐infrared (NIR) mediated photothermal therapy. Living R. sphaeroides exhibits strong absorption in the NIR spectrum, effectively converting light energy into thermal energy while concurrently generating H2. This dual functionality facilitates the targeted induction of tumor cell death and substantially reduces collateral damage to adjacent normal tissues. The findings reveal that integrating hydrogen therapy with photothermal effects, mediated through photosynthetic bacteria, provides a robust, dual‐modality approach that enhances the overall efficacy of tumor treatments. This living therapeutic strategy not only leverages the therapeutic potential of both hydrogen and photothermal therapeutic modalities but also protects healthy tissues, marking a significant advancement in cancer therapy techniques.

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Light-dependent biohydrogen production: Progress and perspectives

Cited by 11 publications

References 135 publications

Purification of Waste-Generated Biogas Mixtures Using Covalent Organic Framework’s High CO₂ Selectivity

Purification of Waste-Generated Biogas Mixtures Using Covalent Organic Framework’s High CO₂ Selectivity

Biohydrogen Production under Aerial Conditions by a Nitrogen-Fixing Bacterium Isolated from a Steel Signboard

Living Therapeutics for Synergistic Hydrogen‐Photothermal Cancer Treatment by Photosynthetic Bacteria

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Light-dependent biohydrogen production: Progress and perspectives

Cited by 11 publications

References 135 publications

Purification of Waste-Generated Biogas Mixtures Using Covalent Organic Framework’s High CO2 Selectivity

Purification of Waste-Generated Biogas Mixtures Using Covalent Organic Framework’s High CO2 Selectivity

Biohydrogen Production under Aerial Conditions by a Nitrogen-Fixing Bacterium Isolated from a Steel Signboard

Living Therapeutics for Synergistic Hydrogen‐Photothermal Cancer Treatment by Photosynthetic Bacteria

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Purification of Waste-Generated Biogas Mixtures Using Covalent Organic Framework’s High CO₂ Selectivity

Purification of Waste-Generated Biogas Mixtures Using Covalent Organic Framework’s High CO₂ Selectivity