eprintid: 19907
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/01/99/07
datestamp: 2024-06-04 14:19:38
lastmod: 2024-06-04 14:19:38
status_changed: 2024-06-04 14:16:10
type: article
metadata_visibility: show
creators_name: Sahrin, N.T.
creators_name: Ardo, F.M.
creators_name: Suparmaniam, U.
creators_name: Ramli, A.
creators_name: Sin, J.C.
creators_name: Lam, S.M.
creators_name: Da Oh, W.
creators_name: Chidi, B.S.
creators_name: Ng, H.-S.
creators_name: Shahid, M.K.
creators_name: Tawfeek, A.M.
creators_name: Khoo, K.S.
creators_name: Lim, J.W.
title: Enhanced microalgal hydrogen production subsisting on visible light TiO2 nanotubes photocatalyst pre-treated palm kernel expeller
ispublished: pub
keywords: Biochemical oxygen demand; Biodegradability; Chlorine compounds; Electrolytes; Ethylene; Ethylene glycol; Fermentation; Hydrogen production; Nanotubes; Oxygen; Titanium dioxide; Urea, Choline chloride; Dark fermentation; Green hydrogen production; Micro-algae; Palm kernel; Palm kernel expeller; Photocatalytic process; Pretreatment methods; TiO 2 nanotube; Visible light, Microalgae
note: cited By 2
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. © 2023 Hydrogen Energy Publications LLC
date: 2024
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85180377245&doi=10.1016%2fj.ijhydene.2023.12.099&partnerID=40&md5=28a4be97ba8ca36bddf1530f8ed002e9
id_number: 10.1016/j.ijhydene.2023.12.099
full_text_status: none
publication: International Journal of Hydrogen Energy
volume: 54
pagerange: 1307-1318
refereed: TRUE
citation:   Sahrin, N.T. and Ardo, F.M. and Suparmaniam, U. and Ramli, A. and Sin, J.C. and Lam, S.M. and Da Oh, W. and Chidi, B.S. and Ng, H.-S. and Shahid, M.K. and Tawfeek, A.M. and Khoo, K.S. and 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.  pp. 1307-1318.