Influence of laser photoactivated graphitic carbon nitride nanosheets and nickel nanoparticles on purple non-sulfur bacteria for biohydrogen production from biomass
The objective of this study is to increase biohydrogen production from biomass using laser photoactivated nanomaterials. Light saturation of photo-fermentation is a vital factor that influences fermentation effectiveness and hydrogen yield. In this study, it is hypothesized that the bio-stimulation of hydrogen-producing purple non-sulfur (PNS) bacteria using laser photoactivated nanomaterials can enhance the endurance ability of such bacteria to unsteady light irradiation, where this leads to overcome the challenge of light saturation. Furthermore, the addition of nanomaterials leads to bio-stimulate the bacterial cells and enhance their activity and growth rate and, therefore, increase biohydrogen production from biomass. A biohydrogen production system and a model of photobioreactor were manufactured and installed. Food wastes were collected from kitchen leftovers of different fast-food suppliers and were used in this study as feedstocks for biohydrogen production. The production process was conducted as following: exposing 16.5 mg/l of graphitic carbon nitride nanosheets on the one hand and 50 mg/l of nickel nanoparticles on the other hand to a helium-neon green laser radiation source with a wavelength of 543 nm for 1 h, then adding them to the bacterial inoculum and then mixing them with biomass and water by a ratio of 0.5:1:2 which were then kept in the photobioreactor exposed to white light emitting diodes (LEDs) with a luminous flux of 3600 lumen and at 30 degrees C for 26 days with mixing for 5 min every 30 min to produce biohydrogen. By this method, it is possible to improve the bioenvironmental conditions and the bio-responses of bacteria which results in increasing the biohydrogen yield by 287% over the conventional method. (C) 2021 Elsevier Ltd. All rights reserved.
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Cairo Univ, Fac Agr, Dept Agr Engn, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
Samer, M.
;
Attia, Y. A.
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Cairo Univ, NILES, Giza 12613, Egypt
Univ Santiago Compostela, Fac Chem, Phys Chem Dept, E-15782 Santiago De Compostela, Spain
Univ Santiago Compostela, Fac Chem, Phys Chem Dept, NANOMAG Lab, E-15782 Santiago De Compostela, SpainCairo Univ, NILES, Giza 12613, Egypt
Attia, Y. A.
;
Abdel-Hadi, M. A.
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Suez Canal Univ, Fac Agr, Dept Agr Engn, Ismailia, EgyptCairo Univ, NILES, Giza 12613, Egypt
Abdel-Hadi, M. A.
;
Hassan, H. E.
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Cairo Univ, NILES, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
Hassan, H. E.
;
Badr, Y.
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Cairo Univ, NILES, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
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Cairo Univ, Fac Agr, Dept Agr Engn, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
Samer, M.
;
Attia, Y. A.
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h-index: 0
机构:
Cairo Univ, NILES, Giza 12613, Egypt
Univ Santiago de Compostela, Dept Phys Chem, Fac Chem, E-15782 Santiago De Compostela, Spain
Univ Santiago de Compostela, NANOMAG Lab, E-15782 Santiago De Compostela, SpainCairo Univ, NILES, Giza 12613, Egypt
Attia, Y. A.
;
Abdel-Hadi, M. A.
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h-index: 0
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Suez Canal Univ, Fac Agr, Dept Agr Engn, Ismailia, EgyptCairo Univ, NILES, Giza 12613, Egypt
Abdel-Hadi, M. A.
;
Hassan, H. E.
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h-index: 0
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Cairo Univ, NILES, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
Hassan, H. E.
;
Badr, Y.
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Cairo Univ, NILES, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
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Cairo Univ, Natl Inst Laser Enhanced Sci, Giza 12613, EgyptCairo Univ, Natl Inst Laser Enhanced Sci, Giza 12613, Egypt
Attia, Yasser A.
;
Kobeasy, Mohamed I.
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Cairo Univ, Fac Agr, Dept Biochem, Giza 12613, Egypt
Taif Univ, Fac Sci, Dept Chem, At Taif 21974, Saudi ArabiaCairo Univ, Natl Inst Laser Enhanced Sci, Giza 12613, Egypt
Kobeasy, Mohamed I.
;
Samer, Mohamed
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h-index: 0
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Cairo Univ, Fac Agr, Dept Agr Engn, Giza 12613, EgyptCairo Univ, Natl Inst Laser Enhanced Sci, Giza 12613, Egypt
机构:
Cairo Univ, Fac Agr, Dept Agr Engn, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
Samer, M.
;
Attia, Y. A.
论文数: 0引用数: 0
h-index: 0
机构:
Cairo Univ, NILES, Giza 12613, Egypt
Univ Santiago Compostela, Fac Chem, Phys Chem Dept, E-15782 Santiago De Compostela, Spain
Univ Santiago Compostela, Fac Chem, Phys Chem Dept, NANOMAG Lab, E-15782 Santiago De Compostela, SpainCairo Univ, NILES, Giza 12613, Egypt
Attia, Y. A.
;
Abdel-Hadi, M. A.
论文数: 0引用数: 0
h-index: 0
机构:
Suez Canal Univ, Fac Agr, Dept Agr Engn, Ismailia, EgyptCairo Univ, NILES, Giza 12613, Egypt
Abdel-Hadi, M. A.
;
Hassan, H. E.
论文数: 0引用数: 0
h-index: 0
机构:
Cairo Univ, NILES, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
Hassan, H. E.
;
Badr, Y.
论文数: 0引用数: 0
h-index: 0
机构:
Cairo Univ, NILES, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
机构:
Cairo Univ, Fac Agr, Dept Agr Engn, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
Samer, M.
;
Attia, Y. A.
论文数: 0引用数: 0
h-index: 0
机构:
Cairo Univ, NILES, Giza 12613, Egypt
Univ Santiago de Compostela, Dept Phys Chem, Fac Chem, E-15782 Santiago De Compostela, Spain
Univ Santiago de Compostela, NANOMAG Lab, E-15782 Santiago De Compostela, SpainCairo Univ, NILES, Giza 12613, Egypt
Attia, Y. A.
;
Abdel-Hadi, M. A.
论文数: 0引用数: 0
h-index: 0
机构:
Suez Canal Univ, Fac Agr, Dept Agr Engn, Ismailia, EgyptCairo Univ, NILES, Giza 12613, Egypt
Abdel-Hadi, M. A.
;
Hassan, H. E.
论文数: 0引用数: 0
h-index: 0
机构:
Cairo Univ, NILES, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
Hassan, H. E.
;
Badr, Y.
论文数: 0引用数: 0
h-index: 0
机构:
Cairo Univ, NILES, Giza 12613, EgyptCairo Univ, NILES, Giza 12613, Egypt
机构:
Cairo Univ, Natl Inst Laser Enhanced Sci, Giza 12613, EgyptCairo Univ, Natl Inst Laser Enhanced Sci, Giza 12613, Egypt
Attia, Yasser A.
;
Kobeasy, Mohamed I.
论文数: 0引用数: 0
h-index: 0
机构:
Cairo Univ, Fac Agr, Dept Biochem, Giza 12613, Egypt
Taif Univ, Fac Sci, Dept Chem, At Taif 21974, Saudi ArabiaCairo Univ, Natl Inst Laser Enhanced Sci, Giza 12613, Egypt
Kobeasy, Mohamed I.
;
Samer, Mohamed
论文数: 0引用数: 0
h-index: 0
机构:
Cairo Univ, Fac Agr, Dept Agr Engn, Giza 12613, EgyptCairo Univ, Natl Inst Laser Enhanced Sci, Giza 12613, Egypt