Enhanced microalgal hydrogen production subsisting on visible light TiO2 nanotubes photocatalyst pre-treated palm kernel expeller

Nurul Tasnim Sahrin; Fatima Musa Ardo; Uganeeswary Suparmaniam; Anita Ramli; Jin Chung Sin; Sze Mun Lam; Wen Da Oh; Boredi Silas Chidi; Hui Suan Ng; Muhammad Kashif Shahid; Ahmed M. Tawfeek; Kuan Shiong Khoo; Jun Wei Lim

doi:10.1016/J.IJHYDENE.2023.12.099

Enhanced microalgal hydrogen production subsisting on visible light TiO₂ nanotubes photocatalyst pre-treated palm kernel expeller

Nurul Tasnim Sahrin, Fatima Musa Ardo, Uganeeswary Suparmaniam, Anita Ramli, Jin Chung Sin, Sze Mun Lam, Wen Da Oh, Boredi Silas Chidi, Hui Suan Ng, Muhammad Kashif Shahid, Ahmed M. Tawfeek, Kuan Shiong Khoo^*, Jun Wei Lim^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The present study investigated the application of photocatalytic process using TiO₂ nanotubes (NTs) photocatalyst as an effective pre-treatment method for palm kernel expeller (PKE) in increasing its biodegradability to enhance the microalgal hydrogen production via dark fermentation. A series of TiO₂ NTs photocatalysts were synthesized via employing electrochemical anodization of Ti foil at various voltages each in different types of electrolytes (choline chloride-ethylene glycol (ChCl-EG), choline chloride-urea (ChCl-U), choline chloride-glycerol (ChCl-Gly)). Increasing trend of average NTs diameters at 26.14 ± 1.30, 73.01 ± 1.94 and 122.00 ± 13.32 nm was observed for 25, 30 and 35 V in synthesizing TiO₂ NTs using suitable ChCl-EG electrolyte, respectively. The high 35 V had resulted in noticeable pore ruptures within this TiO₂ NTs photocatalyst. The PKE pre-treated by TiO₂ NTs photocatalyst anodized at optimum 30 V in ChCl-EG electrolyte had demonstrated the highest releases of biochemical oxygen demand (BOD₅) and soluble chemical oxygen demand (SCOD) concentrations at 594 and 607 mg/L, respectively. Moreover, the microalgal efficiency of BOD₅ conversion and hydrogen yield were also consistently maintained from third cycle of TiO₂ NTs photocatalyst's reutilizations, signifying the stability of TiO₂ NTs photocatalyst.

Original language	English
Pages (from-to)	1307-1318
Number of pages	12
Journal	International Journal of Hydrogen Energy
Volume	54
DOIs	https://doi.org/10.1016/J.IJHYDENE.2023.12.099
Publication status	Published - 7 Feb 2024
Externally published	Yes

Keywords

TiO₂ nanotubes
Photocatalyst
Microalgae
Green hydrogen production
Fermentation
Palm kernel expeller

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10.1016/J.IJHYDENE.2023.12.099

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Sahrin, N. T., Ardo, F. M., Suparmaniam, U., Ramli, A., Sin, J. C., Lam, S. M., Da Oh, W., Chidi, B. S., Ng, H. S., Shahid, M. K., Tawfeek, A. M., Khoo, K. S., & Lim, J. W. (2024). Enhanced microalgal hydrogen production subsisting on visible light TiO₂ nanotubes photocatalyst pre-treated palm kernel expeller. International Journal of Hydrogen Energy, 54, 1307-1318. https://doi.org/10.1016/J.IJHYDENE.2023.12.099

@article{22ac27ad95c145ef876b9965ab91b788,

title = "Enhanced microalgal hydrogen production subsisting on visible light TiO2 nanotubes photocatalyst pre-treated palm kernel expeller",

abstract = "The present study investigated the application of photocatalytic process using TiO2 nanotubes (NTs) photocatalyst as an effective pre-treatment method for palm kernel expeller (PKE) in increasing its biodegradability to enhance the microalgal hydrogen production via dark fermentation. A series of TiO2 NTs photocatalysts were synthesized via employing electrochemical anodization of Ti foil at various voltages each in different types of electrolytes (choline chloride-ethylene glycol (ChCl-EG), choline chloride-urea (ChCl-U), choline chloride-glycerol (ChCl-Gly)). Increasing trend of average NTs diameters at 26.14 ± 1.30, 73.01 ± 1.94 and 122.00 ± 13.32 nm was observed for 25, 30 and 35 V in synthesizing TiO2 NTs using suitable ChCl-EG electrolyte, respectively. The high 35 V had resulted in noticeable pore ruptures within this TiO2 NTs photocatalyst. The PKE pre-treated by TiO2 NTs photocatalyst anodized at optimum 30 V in ChCl-EG electrolyte had demonstrated the highest releases of biochemical oxygen demand (BOD5) and soluble chemical oxygen demand (SCOD) concentrations at 594 and 607 mg/L, respectively. Moreover, the microalgal efficiency of BOD5 conversion and hydrogen yield were also consistently maintained from third cycle of TiO2 NTs photocatalyst's reutilizations, signifying the stability of TiO2 NTs photocatalyst.",

keywords = "TiO₂ nanotubes, Photocatalyst, Microalgae, Green hydrogen production, Fermentation, Palm kernel expeller",

author = "Sahrin, \{Nurul Tasnim\} and Ardo, \{Fatima Musa\} and Uganeeswary Suparmaniam and Anita Ramli and Sin, \{Jin Chung\} and Lam, \{Sze Mun\} and \{Da Oh\}, Wen and Chidi, \{Boredi Silas\} and Ng, \{Hui Suan\} and Shahid, \{Muhammad Kashif\} and Tawfeek, \{Ahmed M.\} and Khoo, \{Kuan Shiong\} and Lim, \{Jun Wei\}",

year = "2024",

month = feb,

day = "7",

doi = "10.1016/J.IJHYDENE.2023.12.099",

language = "English",

volume = "54",

pages = "1307--1318",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier",

}

Sahrin, NT, Ardo, FM, Suparmaniam, U, Ramli, A, Sin, JC, Lam, SM, Da Oh, W, Chidi, BS, Ng, HS, Shahid, MK, Tawfeek, AM, Khoo, KS & Lim, JW 2024, 'Enhanced microalgal hydrogen production subsisting on visible light TiO₂ nanotubes photocatalyst pre-treated palm kernel expeller', International Journal of Hydrogen Energy, vol. 54, pp. 1307-1318. https://doi.org/10.1016/J.IJHYDENE.2023.12.099

TY - JOUR

T1 - Enhanced microalgal hydrogen production subsisting on visible light TiO2 nanotubes photocatalyst pre-treated palm kernel expeller

AU - Sahrin, Nurul Tasnim

AU - Ardo, Fatima Musa

AU - Suparmaniam, Uganeeswary

AU - Ramli, Anita

AU - Sin, Jin Chung

AU - Lam, Sze Mun

AU - Da Oh, Wen

AU - Chidi, Boredi Silas

AU - Ng, Hui Suan

AU - Shahid, Muhammad Kashif

AU - Tawfeek, Ahmed M.

AU - Khoo, Kuan Shiong

AU - Lim, Jun Wei

PY - 2024/2/7

Y1 - 2024/2/7

N2 - The present study investigated the application of photocatalytic process using TiO2 nanotubes (NTs) photocatalyst as an effective pre-treatment method for palm kernel expeller (PKE) in increasing its biodegradability to enhance the microalgal hydrogen production via dark fermentation. A series of TiO2 NTs photocatalysts were synthesized via employing electrochemical anodization of Ti foil at various voltages each in different types of electrolytes (choline chloride-ethylene glycol (ChCl-EG), choline chloride-urea (ChCl-U), choline chloride-glycerol (ChCl-Gly)). Increasing trend of average NTs diameters at 26.14 ± 1.30, 73.01 ± 1.94 and 122.00 ± 13.32 nm was observed for 25, 30 and 35 V in synthesizing TiO2 NTs using suitable ChCl-EG electrolyte, respectively. The high 35 V had resulted in noticeable pore ruptures within this TiO2 NTs photocatalyst. The PKE pre-treated by TiO2 NTs photocatalyst anodized at optimum 30 V in ChCl-EG electrolyte had demonstrated the highest releases of biochemical oxygen demand (BOD5) and soluble chemical oxygen demand (SCOD) concentrations at 594 and 607 mg/L, respectively. Moreover, the microalgal efficiency of BOD5 conversion and hydrogen yield were also consistently maintained from third cycle of TiO2 NTs photocatalyst's reutilizations, signifying the stability of TiO2 NTs photocatalyst.

AB - The present study investigated the application of photocatalytic process using TiO2 nanotubes (NTs) photocatalyst as an effective pre-treatment method for palm kernel expeller (PKE) in increasing its biodegradability to enhance the microalgal hydrogen production via dark fermentation. A series of TiO2 NTs photocatalysts were synthesized via employing electrochemical anodization of Ti foil at various voltages each in different types of electrolytes (choline chloride-ethylene glycol (ChCl-EG), choline chloride-urea (ChCl-U), choline chloride-glycerol (ChCl-Gly)). Increasing trend of average NTs diameters at 26.14 ± 1.30, 73.01 ± 1.94 and 122.00 ± 13.32 nm was observed for 25, 30 and 35 V in synthesizing TiO2 NTs using suitable ChCl-EG electrolyte, respectively. The high 35 V had resulted in noticeable pore ruptures within this TiO2 NTs photocatalyst. The PKE pre-treated by TiO2 NTs photocatalyst anodized at optimum 30 V in ChCl-EG electrolyte had demonstrated the highest releases of biochemical oxygen demand (BOD5) and soluble chemical oxygen demand (SCOD) concentrations at 594 and 607 mg/L, respectively. Moreover, the microalgal efficiency of BOD5 conversion and hydrogen yield were also consistently maintained from third cycle of TiO2 NTs photocatalyst's reutilizations, signifying the stability of TiO2 NTs photocatalyst.

KW - TiO₂ nanotubes

KW - Photocatalyst

KW - Microalgae

KW - Green hydrogen production

KW - Fermentation

KW - Palm kernel expeller

UR - https://www.scopus.com/pages/publications/85180377245

U2 - 10.1016/J.IJHYDENE.2023.12.099

DO - 10.1016/J.IJHYDENE.2023.12.099

M3 - Article

SN - 0360-3199

VL - 54

SP - 1307

EP - 1318

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

ER -

Enhanced microalgal hydrogen production subsisting on visible light TiO₂ nanotubes photocatalyst pre-treated palm kernel expeller

Abstract

Keywords

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