Effect of synthesis parameters on visible light photocatalytic activity of graphene-TiO2 nanocomposites for industrial wastewater treatment
- Authors
- Kim, Seu-Run; Ali, Imran; Kim, Jong-Oh
- Issue Date
- Oct-2018
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Industrial wastewater; Visible-light photocatalyst; Anodization; RGO-TNT; One-step and two-step synthesis
- Citation
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.66, pp.370 - 380
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
- Volume
- 66
- Start Page
- 370
- End Page
- 380
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/3028
- DOI
- 10.1016/j.jiec.2018.06.003
- ISSN
- 1226-086X
- Abstract
- Reduced graphene oxide (RGO)-TiO2 nanotubes (TNTs) were used for industrial wastewater treatment that was obtained from Banwol Sihwa Industrial Complex, Korea. RGO-TNT were fabricated using one-step and two-step anodization at different RGO concentrations, RGO deposition times, anodization voltages and anodization times. Synthesized catalysts were characterised using FESEM, XRD, TEM, EDS, XPS, UV-vis DRS, PL, Raman, and pH(PZC). Compared with pure-TNTs, two-step and one-step RGO-TNT exhibited 2.7 and 3.3-times higher photocatalytic activities for industrial wastewater. Scavenger experiments identified that OH center dot and e(-) are main species involved in photocatalytic degradation of MB and industrial wastewater. RGO-TNTs are suitable for industrial wastewater treatment. (C) 2018 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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