relation: https://khub.utp.edu.my/scholars/14845/ title: Preliminary study on effect of hydrothermal temperature during TiO2 synthesis on the biodiesel production from waste cooking oil Kajian Awal Kesan Suhu Hidroterma semasa Sintesis TiO2 terhadap Penghasilan Biodiesel daripada Sisa Minyak Masak creator: Rahman, N.A. creator: Ramli, A. creator: Kait, C.F. description: In the present work, effect of hydrothermal temperature from 120 to 160 °C on TiO2 physicochemical properties as well as its photocatalytic activity towards biodiesel production using waste cooking oil (WCO) was investigated. TiO2 was synthesized via hydrothermal method using Titanium butoxide, Ti(OBu)4 as the precursor and nitric acid, HNO3 as the peptizing agent. Next, the synthesized photocatalyst was dried at 60 °C for 24 h and later calcined at 400 °C for 2 h. The synthesized TiO2 was characterized using X-ray diffraction (XRD) and Burnauer- Emmet- Teller (BET) to determine their crystallinity and textural properties. Results showed that all synthesized TiO2 have a mixture of anatase and rutile phase and N2 adsorption- desorption isotherm for all catalyst possess Type IV isotherm according to IUPAC classification with hysteresis loop of type H1. Then, all the synthesized catalysts were tested for biodiesel production using esterified waste cooking oil under visible light irradiation for 1 h and 10 min. Percentage of fatty acid methyl ester (FAMEs) present in the synthesized biodiesel was determined using gas chromatography with flame ionization detector (GC-FID). The synthesized catalyst (T24160) showed a good photocatalytic activity as the percentage of biodiesel yield was higher (3.41) compared to the other catalyst. © 2021 Penerbit Universiti Kebangsaan Malaysia. All rights reserved. publisher: Penerbit Universiti Kebangsaan Malaysia date: 2021 type: Article type: PeerReviewed identifier: Rahman, N.A. and Ramli, A. and Kait, C.F. (2021) Preliminary study on effect of hydrothermal temperature during TiO2 synthesis on the biodiesel production from waste cooking oil Kajian Awal Kesan Suhu Hidroterma semasa Sintesis TiO2 terhadap Penghasilan Biodiesel daripada Sisa Minyak Masak. Sains Malaysiana, 50 (6). pp. 1685-1695. ISSN 01266039 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85110185389&doi=10.17576%2fjsm-2021-5006-15&partnerID=40&md5=f9c974258fae36d7d0e857da8f53d5d8 relation: 10.17576/jsm-2021-5006-15 identifier: 10.17576/jsm-2021-5006-15