M. Adlim, Ratu Fazlia Inda Rahmayani, Afifa Saraswati, Ibnu Khaldun, Musa Yavuz
Water quality is crucial for the fishery industry, and photocatalysis is an alternative for the dye wastewater treatment. The photocatalyst ZnO is typically used as a powder, making it difficult to separate from the solution system and obstructing fluid flow. This research aims to immobilize ZnO on a suitable support using appropriate techniques and study its catalytic activities in dye wastewater treatment to solve the problem. ZnO was prepared from either the salt precursor using NaOH-CH3OH (chi-ZnO-NaOH-CH3OH) or directly used commercial ZnO (chi-ZnO-CH3OH). ZnO from both sources was on chi-coated glass beads. Immobilized ZnO from both sources was stable after immobilization, and chi-ZnO-NaOH-CH3OH yielded higher ZnO content (1.791 mg) than the chi-ZnO-CH3OH (0.599 mg) per 10 g of coated glass beads. The photocatalytic activity represented Turn Over Frequency (TOF) of chi-ZnO-CH3OH (0.013 ppm.mg-1.min-1) was higher than the activity of chi-ZnO-NaOH-CH3OH (0.005 ppm.mg-1.min-1), although the rate constant was relatively equal. RhB decomposition reached up to 35% and 21.36% catalysed by chi-ZnO-CH3OH and chi-ZnO-NaOH-CH3OH, respectively, which were much higher than the control. The ZnO photocatalyst can be reused twice, with 35% loss in activity. The photocatalytic activities followed a first-order reaction, with a rate constant (k) of 0.029 min-1 and 0.026 min-1 for each type of chi-ZnO, respectively. © Published under licence by IOP Publishing Ltd.
Graduate School of Mathematics and Applied Science, Universitas Syiah Kuala, Banda Aceh, Indonesia; Chemistry Department, FKIP, Universitas Syiah Kuala, Banda Aceh, Indonesia; Department of Animal Science, Agriculture Faculty, Isparta University of Applied Sciences, Isparta, Turkey
Research at a Glance
Register to unlock
Topics & SDG Alignment
Register to unlock
Collaboration
Register to unlock
Author Profile (Selected)
Register to unlock
References Overview
Register to unlock
Journal & Source
Register to unlock
Metadata & Integrity
Register to unlock