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Your search keyword '"Liang, Daolun"' showing total 39 results
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39 results on '"Liang, Daolun"'

15. The Research on Different Strategies of Fe3O4 Additive Utilization during Semi-Continuous Anaerobic Co-Digestion: A Comparison of Magnetic Separation Recycling and Replenishment without Recycling.

Author

Jiao, Youzhou, Qin, Yixiang, He, Xiaoman, Liang, Daolun, He, Chao, Liu, Xinxin, Jia, Yangyang, Shen, Dekui, and Li, Pengfei

Abstract

Fe4O3 has shown great potential as an enhancer of batch anaerobic digestion performance. In this study, the effect of two types of Fe3O4 additive utilization strategies (magnetic separation recycling strategy and replenishment without recycling strategy) on semi-continuous anaerobic co-digestion of sludge and corn straw were investigated. A maximum methane yield of 163.88 ± 12.18 mL/g·VS·d was obtained at the dosage of 10 g/kg Fe3O4 with magnetic separation recycling strategy compared to the control without the addition of Fe3O4. As compared to the replenishment strategy, the recycling strategy improved specific daily methane yields by 38.45% and 45.75% for Fe3O4 addition amounts of 5 g/kg and 10 g/kg, respectively. The results show that the recycling of Fe3O4 additives can further optimize the composition of VFAs. Although the total VFAs were not elevated, the proportion of acetic acid increased and the proportion of propionic acid as well as butyric acid decreased. The present research supports the magnetic recycling of Fe3O4 as a new strategy to solve the problem of additive loss in semi-continuous anaerobic digestion process. [ABSTRACT FROM AUTHOR]

Published
2024
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35. Efficient photoelectrochemical conversion of CO2to syngas by photocathode engineering

Author

Chu, Sheng, Ou, Pengfei, Rashid, Roksana Tonny, Pan, Yuyang, Liang, Daolun, Zhang, Huiyan, and Song, Jun

Abstract

The synthesis of renewable chemical fuels from CO2and H2O via photoelectrochemical (PEC) route reprensents a promising room-temperature approach for transforming greenhouse gas into value-added chemicals (e.g., syngas), but to date it has been hampered by the lack of efficient photocathode for CO2reduction. Herein, we report efficient PEC CO2reduction into syngas by photocathode engineering. The photocathode is consisting of a planar p-n Si junction for strong light harvesting, GaN nanowires for efficient electron extraction and transfer, and Au/TiO2for rapid electrocatalytic syngas production. The photocathode yields a record-high solar energy conversion efficiency of 2.3%. Furthermore, desirable syngas compositions with CO/H2ratios such as 1:2 and 1:1 can be produced by simply varying the size of Au nanoparticle. Theoretical calculations reveal that the active sites for CO and H2generation are the facet and undercoordinated sites of Au particles, respectively.

Published
2022
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