Photocatalytic activity of graphite/zinc oxide composites synthesized via room-temperature solid-state reaction

Authors

Princess Mercado Rosario ⋅ PH Department of Physical Sciences, University of the Philippines Baguio
Roselle T Ngaloy ⋅ PH Department of Physical Sciences, University of the Philippines Baguio
May Angelu L Madarang ⋅ PH Department of Physical Sciences, University of the Philippines Baguio
Ian Jasper A Agulo ⋅ PH Department of Physical Sciences, University of the Philippines Baguio https://orcid.org/0000-0003-0745-9300

Abstract

Graphite/zinc oxide composites synthesized via room-temperature solid-state reaction were used as photocatalyst for degradation of methylene blue dye under UV irradiation. Decomposition of methylene blue fitted a pseudo-first-order kinetics model. All composites showed enhanced photocatalytic performance compared to zinc oxide. Specifically, the sample with equal mass ratio of graphite and zinc oxide that was not ground and the sample with mass ratio of G:ZnO=1:3 ground for 2 hours increased by 87.76% and 82.76%, respectively, with respect to pure ZnO. The sample with equal mass ratio of graphite and zinc oxide ground for 2 hours also displayed good stability and recyclability, degrading methylene blue solution in at most 60 minutes after four times reuse.

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Issue

2018: Proceedings of the 36th Samahang Pisika ng Pilipinas Physics Conference

Article ID

SPP-2018-PA-26

Section

Poster Session A (Materials Science, Instrumentation, and Photonics)

Published

2018-05-28

How to Cite

[1]

PM Rosario, RT Ngaloy, MAL Madarang, and IJA Agulo, Photocatalytic activity of graphite/zinc oxide composites synthesized via room-temperature solid-state reaction, Proceedings of the Samahang Pisika ng Pilipinas 36, SPP-2018-PA-26 (2018). URL: https://proceedings.spp-online.org/article/view/SPP-2018-PA-26.