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Energy-efficient Carbon-doped TiO2 for Visible Light Degradation of Methyl Orange: Preparation, Performance, and Mechanism

Bulletin of Chemical Reaction Engineering & Catalysis · Vol. ume (2024) · hlm. 692–709

DOI
10.9767/bcrec.20236
ISSN
1978-2993
Terbit
2024-12-30
Penerbit
Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-sa/4.0

Abstrak

Water pollution caused by textile dyes has become a serious issue, making the treatment of sewage urgent. Carbon-doped TiO2 (C-doped TiO2), using alkanes and polyols as carbon sources, has been found to be light-responsive in degrading dyes. However, there is a lack of studies on the interfacial interaction between carboxylic acids and TiO2. Therefore, citric acid, a triprotic, hexadentate carboxylic acid, was used to dope TiO2 through solvothermal-calcination. The effects of carbon content and calcination temperature on the photodegradation performance of C-doped TiO2 were investigated. The band gap energy of C-doped TiO2 was found to be narrower (2.67 eV) than that of undoped TiO2 (2.88 eV). After carbon doping, the absorption band extended from the UV to the visible regions, lowering the energy required for electron excitation. The functional groups present on C-doped TiO2 assisted in the adsorption of methyl orange (MO), assisting in photodegradation. Only the anatase phase of TiO2 was observed at calcination temperatures between 250 and 400 °C. Photoluminescence analysis revealed that a lower carbon content and slightly higher calcination temperature resulted in better interfacial charge separation and transfer efficiency. The 10 wt% C-doped TiO2 calcined at 300 °C demonstrated the best MO photodegradation efficiency of 62.1% under visible light illumination. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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  • Mulawarman University
  • Xiamen University Malaysia
  • Xiamen University
  • State University of Malang
  • Universiti Putra Malaysia
  • University of Technology Malaysia
  • Universitas Islam Negeri Maulana Malik Ibrahim
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Tampilkan sebagai tabel
Rekan penulisOrganisasiArtikel bersama
Mukhamad NurhadiMulawarman University12
Hadi NurUniversity of Technology Malaysia5
Teguh WirawanMulawarman University4
Ratna KusumawardaniMulawarman University3
Alysa LauXiamen University Malaysia3
Yun Hin Taufiq‐YapUniversiti Putra Malaysia3
G. Abdulkareem-AlsultanUniversiti Putra Malaysia3
Kelvert KongXiamen University Malaysia2
Ying WengXiamen University Malaysia2
Nabila Nur AgustiMulawarman University2
Wirhanuddin WirhanuddinMulawarman University2
Sumari SumariState University of Malang2
Sri LestariMulawarman University2
Lik Quan LauXiamen University Malaysia2
Haiyan LiXiamen University2
Mahashanon ArumugamUniversity of Chemistry and Technology, Prague2
Weng Hoong LamXiamen University1
Anton PrasetyoUniversitas Islam Negeri Maulana Malik Ibrahim1
Nazarudin NazarudinUniversitas Jambi1
Soerja KoesnarpadiMulawarman University1
Yuniar Ponco PranantoUniversity of Brawijaya1
Volkan DegirmenciUniversity of Warwick1
Siew Fan WongAsia Pacific University of Technology & Innovation1
Zhiying ZhuXiamen University Malaysia1
Muflihah MuflihahMulawarman University1
Yuniati MangesaMulawarman University1
Fathur Insani RidhoMulawarman University1
Robbiatul AdawiyahMulawarman University1
Pristiningtyas AmbarwatiMulawarman University1
Siti RahmaMulawarman University1
Agung RahmadaniMulawarman University1
Hadi NurState University of Malang1
Ratna Kusuma WardaniMulawarman University1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.bcrec.id/index.php/bcrec/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en-US">Energy-efficient Carbon-doped TiO2 for Visible Light Degradation of Methyl Orange: Preparation, Performance, and Mechanism</dc:title>
	<dc:creator>Han, Xinying</dc:creator>
	<dc:creator>Guo, Yubei</dc:creator>
	<dc:creator>Goh, Chien Yong</dc:creator>
	<dc:creator>Ngan, Cheng Loong</dc:creator>
	<dc:creator>Tan, Jian Ping</dc:creator>
	<dc:creator>Tan, Peng Chee</dc:creator>
	<dc:creator>Lai, Sin Yuan</dc:creator>
	<dc:subject xml:lang="en-US">energy efficient; carbon-doped TiO2; wastewater treatment; green synthesis; photodegradation</dc:subject>
	<dc:description xml:lang="en-US">Water pollution caused by textile dyes has become a serious issue, making the treatment of sewage urgent. Carbon-doped TiO2 (C-doped TiO2), using alkanes and polyols as carbon sources, has been found to be light-responsive in degrading dyes. However, there is a lack of studies on the interfacial interaction between carboxylic acids and TiO2. Therefore, citric acid, a triprotic, hexadentate carboxylic acid, was used to dope TiO2 through solvothermal-calcination. The effects of carbon content and calcination temperature on the photodegradation performance of C-doped TiO2 were investigated. The band gap energy of C-doped TiO2 was found to be narrower (2.67 eV) than that of undoped TiO2 (2.88 eV). After carbon doping, the absorption band extended from the UV to the visible regions, lowering the energy required for electron excitation. The functional groups present on C-doped TiO2 assisted in the adsorption of methyl orange (MO), assisting in photodegradation. Only the anatase phase of TiO2 was observed at calcination temperatures between 250 and 400 °C. Photoluminescence analysis revealed that a lower carbon content and slightly higher calcination temperature resulted in better interfacial charge separation and transfer efficiency. The 10 wt% C-doped TiO2 calcined at 300 °C demonstrated the best MO photodegradation efficiency of 62.1% under visible light illumination. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).</dc:description>
	<dc:publisher xml:lang="en-US">Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)</dc:publisher>
	<dc:date>2024-12-30</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
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	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.bcrec.id/index.php/bcrec/article/view/20236</dc:identifier>
	<dc:identifier>10.9767/bcrec.20236</dc:identifier>
	<dc:source xml:lang="en-US">Bulletin of Chemical Reaction Engineering &amp; Catalysis; 2024: BCREC Volume 19 Issue 4 Year 2024 (December 2024); 692-709</dc:source>
	<dc:source>1978-2993</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/view/20236/9749</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20236/5328</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20236/5329</dc:relation>
	<dc:relation>https://journal.bcrec.id/index.php/bcrec/article/downloadSuppFile/20236/5330</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2024 by Authors, Published by BCREC Publishing Group</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-sa/4.0</dc:rights>
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