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Article

Synthesis, Characterization, and Synergistic Effects of Modified Biochar in Combination with α-Fe2O3 NPs on Biogas Production from Red Algae Pterocladia capillacea

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Marine Pollution Lab, National Institute of Oceanography and Fisheries (NIOF), Alexandria 21556, Egypt
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Advanced Technology and New Materials Research Institute, City for Scientific Research and Technological Applications, Alexandria 21934, Egypt
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Department of Chemical Engineering, Faculty of Engineering, Minia University, Minia 61519, Egypt
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Department of Agriculture and Environmental Sciences, Bari University, 70121 Bari, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Idiano D’Adamo
Sustainability 2021, 13(16), 9275; https://doi.org/10.3390/su13169275
Received: 13 July 2021 / Revised: 14 August 2021 / Accepted: 16 August 2021 / Published: 18 August 2021
(This article belongs to the Topic Actions for Bioenergy and Biofuels: A Sustainable Shift)
This study is the first work that evaluated the effectiveness of unmodified (SD) and modified biochar with ammonium hydroxide (SD-NH2) derived from sawdust waste biomass as an additive for biogas production from red algae Pterocladia capillacea either individually or in combination with hematite α-Fe2O3 NPs. Brunauer, Emmett, and Teller, Fourier transform infrared, thermal gravimetric analysis, X-ray diffraction, transmission electron microscopy, Raman, and a particle size analyzer were used to characterize the generated biochars and the synthesized α-Fe2O3. Fourier transform infrared (FTIR) measurements confirmed the formation of amino groups on the modified biochar surface. The kinetic research demonstrated that both the modified Gompertz and logistic function models fit the experimental data satisfactorily except for 150 SD-NH2 alone or in combination with α-Fe2O3 at a concentration of 10 mg/L. The data suggested that adding unmodified biochar at doses of 50 and 100 mg significantly increased biogas yield compared to untreated algae. The maximum biogas generation (219 mL/g VS) was obtained when 100 mg of unmodified biochar was mixed with 10 mg of α-Fe2O3 in the inoculum. View Full-Text
Keywords: Pterocladia capillacea; biochar; sawdust; modified sawdust; α-Fe2O3 NPs; biogas Pterocladia capillacea; biochar; sawdust; modified sawdust; α-Fe2O3 NPs; biogas
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MDPI and ACS Style

Hassaan, M.A.; El Nemr, A.; Elkatory, M.R.; Ragab, S.; El-Nemr, M.A.; Pantaleo, A. Synthesis, Characterization, and Synergistic Effects of Modified Biochar in Combination with α-Fe2O3 NPs on Biogas Production from Red Algae Pterocladia capillacea. Sustainability 2021, 13, 9275. https://doi.org/10.3390/su13169275

AMA Style

Hassaan MA, El Nemr A, Elkatory MR, Ragab S, El-Nemr MA, Pantaleo A. Synthesis, Characterization, and Synergistic Effects of Modified Biochar in Combination with α-Fe2O3 NPs on Biogas Production from Red Algae Pterocladia capillacea. Sustainability. 2021; 13(16):9275. https://doi.org/10.3390/su13169275

Chicago/Turabian Style

Hassaan, Mohamed A., Ahmed El Nemr, Marwa R. Elkatory, Safaa Ragab, Mohamed A. El-Nemr, and Antonio Pantaleo. 2021. "Synthesis, Characterization, and Synergistic Effects of Modified Biochar in Combination with α-Fe2O3 NPs on Biogas Production from Red Algae Pterocladia capillacea" Sustainability 13, no. 16: 9275. https://doi.org/10.3390/su13169275

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