Doping TiO2 with Cu from electroplating wastewater for remarkable improvement of its activity under visible light for E. coli bacterial disinfection in water
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Endang T. Wahyuni
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Kusuma P. Suwondo
Abstract
This study investigates the feasibility of use electroplating wastewater as a source of copper (Cu) dopants to improve the photocatalytic efficacy of TiO2 under visible light for the disinfection of water contaminated with Escherichia coli. The Cu-doped TiO2 was produced by the sol-gel process, employing titanium tetra-isopropoxide (TTIP) and Cu(II) ions derived from wastewater. By modifying the concentration of Cu(II), TiO2-Cu photocatalysts with differing copper concentrations were synthesized. The doping procedure substantially decreased the band gap of TiO2, facilitating activation under visible light and markedly enhancing its photocatalytic efficacy. The ideal Cu doping concentration was determined to be 0.60 %, which decreased the band gap from 3.20 eV (pure TiO2) to 2.88 eV. Under visible light, the TiO2-Cu (0.60 %) photocatalyst attained a remarkable 98.21 % reduction of E. coli after 30 min, in contrast to a mere 38.42 % reduction by undoped TiO2. This study emphasizes the feasibility of using industrial wastewater to develop economical and effective TiO2 photocatalysts for water purification purposes.
Funding source: Gadjah Mada University
Award Identifier / Grant number: 2459/UN 1/FMIPA.1.3/KP/PT.01.03/2024
Acknowledgments
Authors thank to Faculty of Mathematic and Natural Sciences UGM for financial support through Flagship Research Grant with the contract number: 2459/UN 1/FMIPA.1.3/KP/PT.01.03/2024, Februaty 16 2024.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: Conceptualization, E.T.W.,K.P.S; writing original draft, E.T.W.,K.P.S; Writing – review & editing, E.P; Visualization, K.P.S, E.P; Investigation, K.P.S; Methodology, E.T.W, K.P.S; Supervision and Validation, E.T.W, N.H.A, E.T.S, N.F.J.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: Flagship Research Grant with the contract number: 2459/UN 1/FMIPA.1.3/KP/PT.01.03/2024, Februaty 16 2024.
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Data availability: Not applicable.
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Supplementary Material
This article contains supplementary material (https://doi.org/10.1515/pac-2024-0271).
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Articles in the same Issue
- Frontmatter
- In this issue
- Preface
- Preface: 9th International Conference for Young Chemists (ICYC) 2024
- Research Articles
- Doping TiO2 with Cu from electroplating wastewater for remarkable improvement of its activity under visible light for E. coli bacterial disinfection in water
- Investigating the potential of prenylated and geranylated acylphloroglucinol-based xanthenones as potent soybean 15-lipoxygenase inhibitors: a combined in vitro and in silico approach
- Intelligent food packaging from Ganyong starch (Canna Edulis Kerr.) modified with nanocellulose from corn husk (Zea mays) and curcumin as bioindicator
- Evaluation of 2-(1H-1,2,3-triazol-1-yl) acetic acid derivatives as potential human hypoxia-inducible factor (HIF) prolyl hydroxylase domain-2 (PHD2) inhibitors
- Microparticles zerumbone from Zingiber zerumbet rhizome in chitosan modified oleic acid
- Enhanced visible photocatalytic degradation of diclofenac by ultrasound-assisted prepared C and N co-doping TiO2
- Enhanced stability and permeability of graphene oxide nanocomposite membranes via glycine and diglycine cross-linking
- Furanyl-Chalcones as antimalarial agent: synthesis, in vitro study, DFT, and docking analysis of PfDHFR inhibition
Articles in the same Issue
- Frontmatter
- In this issue
- Preface
- Preface: 9th International Conference for Young Chemists (ICYC) 2024
- Research Articles
- Doping TiO2 with Cu from electroplating wastewater for remarkable improvement of its activity under visible light for E. coli bacterial disinfection in water
- Investigating the potential of prenylated and geranylated acylphloroglucinol-based xanthenones as potent soybean 15-lipoxygenase inhibitors: a combined in vitro and in silico approach
- Intelligent food packaging from Ganyong starch (Canna Edulis Kerr.) modified with nanocellulose from corn husk (Zea mays) and curcumin as bioindicator
- Evaluation of 2-(1H-1,2,3-triazol-1-yl) acetic acid derivatives as potential human hypoxia-inducible factor (HIF) prolyl hydroxylase domain-2 (PHD2) inhibitors
- Microparticles zerumbone from Zingiber zerumbet rhizome in chitosan modified oleic acid
- Enhanced visible photocatalytic degradation of diclofenac by ultrasound-assisted prepared C and N co-doping TiO2
- Enhanced stability and permeability of graphene oxide nanocomposite membranes via glycine and diglycine cross-linking
- Furanyl-Chalcones as antimalarial agent: synthesis, in vitro study, DFT, and docking analysis of PfDHFR inhibition
