Temperature, salinity and pH dependence of zinc oxide photocatalytic properties for dye removal application / Wan Rafizah Wan Abdullah... [et al.]

Wan Abdullah, Wan Rafizah and Mohd Nazri, Nur Mimi Nazira and Ismail, Nur Ain and Dzulkarnain, Farahana Atikah and Mohd Ghazali, Mohd Sabri (2017) Temperature, salinity and pH dependence of zinc oxide photocatalytic properties for dye removal application / Wan Rafizah Wan Abdullah... [et al.]. ESTEEM Academic Journal, 13. pp. 14-23. ISSN 1675-7939

Official URL: https://uppp.uitm.edu.my

Abstract

ZnO based photocatalysis process is considered as promising cost-effective and environmental friendly technology to decompose recalcitrant organic contaminants in water by converting them into CO2 and H2O. Existing photocatalysis of ZnO commonly involve the near-room-temperature photoreaction under illumination of the UV light or sunlight. In this study, the influence of operational conditions such as temperature, salinity and pH on photocatalytic activity of Zn were thoroughly investigated. Methylene blue (C16H18N3SCl), (MB) dye was selected as the model contaminant. 10 mg/L of MB dye was photodegraded under UV-light irradiation in the present of 1 g/L of ZnO for 60 minutes. The reaction was conducted under different sets of operational conditions such as temperature (30 – 45 oC), salinity (25-100 g/L NaCl) and pH (5-9). The optimum operational condition for the photodecomposition of MB using ZnO catalyst were found to be at high temperature (45 oC), low pH (pH 5) and high salinity (100 g/L NaCl)

Metadata

Item Type: Article
Creators:
Creators
Email / ID Num.
Wan Abdullah, Wan Rafizah
wanrafizah@umt.edu.my
Mohd Nazri, Nur Mimi Nazira
nazira93@gmail.com
Ismail, Nur Ain
ainmael93@gmail.com
Dzulkarnain, Farahana Atikah
farahana.eddy@gmail.com
Mohd Ghazali, Mohd Sabri
mohdsabri@umt.edu.my
Subjects: Q Science > QD Chemistry > Physical and theoretical chemistry
Q Science > QD Chemistry > Physical and theoretical chemistry > Theory of solution
Q Science > QD Chemistry > Physical and theoretical chemistry > Theory of solution > Supersaturated solutions. Crystallization, etc.
Divisions: Universiti Teknologi MARA, Pulau Pinang > Permatang Pauh Campus
Journal or Publication Title: ESTEEM Academic Journal
UiTM Journal Collections: UiTM Journal > ESTEEM Academic Journal (EAJ)
ISSN: 1675-7939
Volume: 13
Page Range: pp. 14-23
Keywords: ZnO, photocatalyst, salinity, temperature, Ph, methylene blue.
Date: August 2017
URI: https://ir.uitm.edu.my/id/eprint/28810
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