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Wang S, Tuo B, Wang J, Mo Y. Research progress of TiO 2-based photocatalytic degradation of wastewater: bibliometric analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:125417-125438. [PMID: 38015394 DOI: 10.1007/s11356-023-31236-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/21/2023] [Indexed: 11/29/2023]
Abstract
The pollution caused by modernization and industrialization has caused serious harm to the biodiversity of the earth. TiO2-based photocatalyst has been widely studied as an effective and sustainable water environment remediation material. In this study, we analyzed the status and research trends of TiO2-based photocatalytic degradation of wastewater in depression from 2003 to 2023 to provide a reference for further research. "Doping", "Modification" and "Heterojunction" were used as keywords, and 817 related academic literatures were screened out by using Web of Science database. Through the visualization software VOSviewer and CiteSpace, the authors, institutions and literature keywords were clustered. The results show that since 2008, the annual number of published papers on TiO2-based photocatalytic degradation of wastewater has increased from 9 to 114. Among them, China has published 432 articles and made great contributions, and there are many representative research teams. Chinese universities are the main body to study TiO2-based photocatalytic degradation of wastewater, but the cooperation between universities is not as close as that abroad. This paper comprehensively analyzes the research hotspots of TiO2-based photocatalytic degradation of wastewater, such as the doping of TiO2 and the construction of different types of heterojunctions of TiO2. It is expected that these analysis results will provide new research ideas for researchers to carry out future research on related topics and let researchers know in-depth research institutions and possible collaborators to conduct academic exchanges and discussions with active institutions.
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Affiliation(s)
- Shengqing Wang
- College of Mining, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Biyang Tuo
- College of Mining, Guizhou University, Guiyang, 550025, People's Republic of China.
- National and Local Joint Laboratory for Effective Utilization of Mineral Resources in Karst Area, Guiyang, 550025, People's Republic of China.
| | - Jianli Wang
- College of Metallurgy and Material Engineering, Hunan University of Technology, Zhuzhou, 412000, People's Republic of China
| | - Yuying Mo
- College of Mining, Guizhou University, Guiyang, 550025, People's Republic of China
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2
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Sraw A, Kaur T, Thakur I, Verma A, Wanchoo RK, Toor AP. Photocatalytic degradation of pesticide monocrotophos in water using W-TiO2 in slurry and fixed bed recirculating reactor. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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Zeshan M, Bhatti IA, Mohsin M, Iqbal M, Amjed N, Nisar J, AlMasoud N, Alomar TS. Remediation of pesticides using TiO 2 based photocatalytic strategies: A review. CHEMOSPHERE 2022; 300:134525. [PMID: 35427656 DOI: 10.1016/j.chemosphere.2022.134525] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
Nowadays, pesticides are regarded as the most dangerous of the various organic pollutants, posing substantial environmental and human threats worldwide. Pesticide contamination has become one of the most crucial environmental issues due to its bio-persistence and bioaccumulation. Different conventional methods are being utilized for pesticide removal, yet pesticides are thought to be significantly present in the environment. The development and application of sophisticated wastewater treatment methods are being pursued to remove contaminants effectively, particularly pesticides. In the past several decades, nanoscience and nanotechnology have emerged as essential tools for the identification, removal, and mineralization of persistent pesticides by employing advanced nanomaterials such as pristine titanium dioxide (TiO2), doped TiO2, nanocomposites (NCs) TiO2, and ternary nanocomposites (TNCs) TiO2 by advanced oxidation processes (AOPs). Advancement in the characteristics of TiO2 by doping, co-doping, construction of NCs and TNCs has contributed to the dramatic efficiency up-gradation by reducing band gap, solar active photocatalyst, enhancing PCA, high photostability, chemically inertness and multiple time reusability. Based on previous literature, utilizing La-TiO2 NCs photocatalyst, the mineralization of pesticide (imidacloprid) attained up to 98.17% that is almost 40-53% greater than pristine TiO2. The present review attempt to discuss the recent research performed on TiO2 based nanoparticles (NPs) and NCs for photocatalytic mineralization of various pesticides. The basic mechanism of TiO2 photocatalysis, types of reactors used for photocatalysis, and optimized experimental conditions of TiO2 for pesticides mineralization are discussed.
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Affiliation(s)
- Muhammad Zeshan
- Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Ijaz A Bhatti
- Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan.
| | - Muhammad Mohsin
- Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan.
| | - Munawar Iqbal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan.
| | - Nyla Amjed
- Department of Chemistry, The University of Lahore, Lahore, 53700, Pakistan
| | - Jan Nisar
- National Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar, 25120, Pakistan
| | - Najla AlMasoud
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - Taghrid S Alomar
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
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4
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A High-Performing Nanostructured Ir Doped-TiO2 for Efficient Photocatalytic Degradation of Gaseous Toluene. INORGANICS 2022. [DOI: 10.3390/inorganics10030029] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
TiO2-based photocatalysts still have some limitations such as large bandgap and low surface area, leading to low efficiency in the photocatalytic degradation of VOCs and limiting it to use in sunlight. Here we report that the nanostructured Ir-doped TiO2 as an efficient photocatalyst generates an excellent risk-reduction material of gaseous toluene. We have succeeded in developing a nanostructured Ir-doped TiO2 and initially found that excellent efficient photocatalytic VOC decomposition can be achieved in our materials The nanostructured Ir-doped TiO2 was synthesized by a one pot, low temperature hydrothermal process with different ratios of Ir doped into the TiO2. It exhibited a high surface area, uniformly spherical morphology of 10–15 nm. Its activity for the photocatalytic degradation of gaseous toluene exhibited up to 97.5% under UV light. This enhancement could be explained by iridium doping which created a high concentration oxygen vacancy and changed the recombination rate of the photogenerated charge carriers. More generally, our study indicates a strategic way to develop the novel nanostructured material for numerous applications.
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5
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Chen X, Sun B, Han Z, Wang Y, Han X, Xu P. Ultrathin tungsten-doped hydrogenated titanium dioxide nanosheets for solar-driven hydrogen evolution. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00978a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ultrathin tungsten-doped hydrogenated TiO2 (W-h-TiO2) nanosheets are highly efficient for photocatalytic hydrogen production by water splitting without a noble metal cocatalyst.
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Affiliation(s)
- Xiaoyu Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Bojing Sun
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Zhi Han
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yu Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xijiang Han
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Ping Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
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6
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Chen A, Chen G, Wang Y, Lu Y, Chen J, Gong J. Fabrication of novel Ag 4Bi 2O 5-x towards excellent photocatalytic oxidation of gaseous toluene under visible light irradiation. ENVIRONMENTAL RESEARCH 2021; 197:111130. [PMID: 33861974 DOI: 10.1016/j.envres.2021.111130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/20/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
In this work, a novel oxide combined with bismuth (Bi) and silver (Ag) was prepared via simple ball milling. This substance was optimized by adjusting the amount of pre-source. Preliminary characterization results confirmed the successful synthesis of Ag4Bi2O5. Subsequently, gaseous toluene was selected as model compound to evaluate the photocatalytic activity of Ag4Bi2O5 photocatalyst. According to the degradation results, Ag4Bi2O5 performed excellent visible light-driven photocatalytic activity with high stability. For the oxidation process of gaseous compound, reactive oxygen species (ROS) were responsible for the achievement, and the formation of oxygen vacancies on Ag4Bi2O5 were involved in the generation of ROS to promote the transfer of photogenerated electrons, and improving photocatalytic activity. DFT calculations revealed the theoretical band gap of Ag4Bi2O5 bulk is 1.758 eV. And the work function of Ag4Bi2O5 (112)ov was ca. at 4.447 eV. The material was easily fabricated and a reliable path was provided for the synthesis of new and efficient photocatalyst for the remediation of polluted indoor air.
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Affiliation(s)
- Ayan Chen
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037#, Wuhan, 430074, China
| | - Guanwen Chen
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037#, Wuhan, 430074, China
| | - Yunyang Wang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037#, Wuhan, 430074, China
| | - Yun Lu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037#, Wuhan, 430074, China
| | - Jianxiong Chen
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037#, Wuhan, 430074, China
| | - Jianyu Gong
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Luoyu Road 1037#, Wuhan, 430074, China.
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7
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Fouad K, Gar Alalm M, Bassyouni M, Saleh MY. A novel photocatalytic reactor for the extended reuse of W-TiO 2 in the degradation of sulfamethazine. CHEMOSPHERE 2020; 257:127270. [PMID: 32526466 DOI: 10.1016/j.chemosphere.2020.127270] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/20/2020] [Accepted: 05/30/2020] [Indexed: 06/11/2023]
Abstract
In this study, a photocatalytic reactor with a novel engineering design has been used for the extended degradation of sulfamethazine (SMZ). The reactor employed four consecutive stainless-steel plates immobilized by tungsten-dope TiO2 (W-TiO2) using polysiloxane. The characterization of W-TiO2 by X-ray diffraction (XRD), Raman spectroscopy, and energy-dispersive X-ray (EDX) denoted successful doping of tungsten in the lattice of anatase crystals of TiO2 suggesting a high photocatalytic activity under UV and visible light. A Box-Behnken experimental design was employed for the optimization of the operating parameters such as solution pH, flow rate, and the initial SMZ concentration. The residual SMZ concentration was below the detection limit after 30 min of the photocatalytic reaction under the optimum operating conditions. A highly remarkable degradation of SMZ was observed in five consecutive cycles, which reveals an extended stable photocatalytic activity offered by the reactor design. The transformation products were identified by tandem mass spectrometry, and they were employed to propose the degradation pathway. These results highlight the importance of using the photocatalysts in retained forms and open additional avenues for the practical application of photocatalysis in wastewater treatment.
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Affiliation(s)
- Kareem Fouad
- Department of Civil Engineering, Faculty of Engineering, Port Said University, Port Said, 42511, Egypt
| | - Mohamed Gar Alalm
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo, 152-8552, Japan; Department of Public Works Engineering, Faculty of Engineering, Mansoura University, Mansoura, 35516, Egypt.
| | - Mohamed Bassyouni
- Department of Chemical Engineering, Faculty of Engineering Port Said University, Port Said, 42511, Egypt; Zewail University of Science and Technology, City of Science and Technology, October Gardens, 6 th of October, Giza, 12578, Egypt
| | - Mamdouh Y Saleh
- Department of Civil Engineering, Faculty of Engineering, Port Said University, Port Said, 42511, Egypt
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8
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Zhang Y, Xu X. Machine Learning Band Gaps of Doped-TiO 2 Photocatalysts from Structural and Morphological Parameters. ACS OMEGA 2020; 5:15344-15352. [PMID: 32637808 PMCID: PMC7331044 DOI: 10.1021/acsomega.0c01438] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/08/2020] [Indexed: 05/09/2023]
Abstract
Titanium dioxide (TiO2) photocatalysts in the form of thin films are of great interest due to their tunable optical band gaps, E g's, which are promising candidates for applications of visible-light photocatalytic activities. Previous studies have shown that processing conditions, dopant types and concentrations, and different combinations of the two have great impacts on structural, microscopic, and optical properties of TiO2 thin films. The lattice parameters and surface area are strongly correlated with E g values, which are conventionally simulated and studied through first-principle models, but these models require significant computational resources, particularly in complex situations involving codoping and various surface areas. In this study, we develop the Gaussian process regression model for predictions of anatase TiO2 photocatalysts' energy band gaps based on the lattice parameters and surface area. We explore 60 doped-TiO2 anatase photocatalysts with E g's between 2.280 and 3.250 eV. Our model demonstrates a high correlation coefficient of 99.99% between predicted E g's and their experimental values and high prediction accuracy as reflected through the prediction root-mean-square error and mean absolute error being 0.0012 and 0.0010% of the average experimental E g, respectively. This modeling method is simple and straightforward and does not require a lot of parameters, which are advantages for applications and computations.
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9
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Bhaskaruni SV, Maddila S, Gangu KK, Jonnalagadda SB. A review on multi-component green synthesis of N-containing heterocycles using mixed oxides as heterogeneous catalysts. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.09.016] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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10
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Pham HQ, Huynh TT, Bich HN, Pham TM, Nguyen ST, Lu LT, Thanh Ho VT. Tungsten-doped titanium-dioxide-supported low-Pt-loading electrocatalysts for the oxidation reaction of ethanol in acidic fuel cells. CR CHIM 2019. [DOI: 10.1016/j.crci.2019.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Ndabankulu VO, Maddila S, Jonnalagadda SB. Synthesis of lanthanide-doped TiO2 nanoparticles and their photocatalytic activity under visible light. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0408] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Four different lanthanide (Ce, Dy, Lu, and Sm) doped TiO2 mesoporous materials were synthesised using the sol–gel method with titanium (IV) isopropoxide as the precursor. All of the synthesized materials were characterised using different analytical techniques, BET, PXRD, TEM, SEM-EDX, Raman, FTIR, photoluminescence, and UV-DRS spectroscopy. Photocatalytic activity and efficacy of the materials in the degradation of caffeine in aqueous solutions was investigated under visible light illumination. Although all materials showed good photocatalytic activity, Ce-doped TiO2 exhibited relatively better activity than the other three catalysts. High photoactivity of the catalysts was attributed to the presence of lanthanides and their ability to generate ions that scavenge electrons under visible light, thereby enhancing photodegradation of caffeine. All materials proved to be good and were recyclable without loss of catalytic activity up to three runs. An intermediate [N-1,3,6-trimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)formamide] (TDTF) and two products (6-amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropymidin-5-ly)-(methyl)-carbamic acid (ATCA) and N-methyl-N-(methylcarbomoyl)-2-oxoacetamide (MMO) were identified by the LC–MS spectra.
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Affiliation(s)
- Vuyolwethu O. Ndabankulu
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
| | - Suresh Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
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12
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Ye Y, Bruning H, Liu W, Rijnaarts H, Yntema D. Effect of dissolved natural organic matter on the photocatalytic micropollutant removal performance of TiO2 nanotube array. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.11.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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13
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Mendiola-Alvarez SY, Guzmán-Mar JL, Turnes-Palomino G, Maya-Alejandro F, Caballero-Quintero A, Hernández-Ramírez A, Hinojosa-Reyes L. Synthesis of Cr 3+-doped TiO 2 nanoparticles: characterization and evaluation of their visible photocatalytic performance and stability. ENVIRONMENTAL TECHNOLOGY 2019; 40:144-153. [PMID: 28914168 DOI: 10.1080/09593330.2017.1380715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 09/09/2017] [Indexed: 06/07/2023]
Abstract
Cr3+-doped TiO2 nanoparticles (Ti-Cr) were synthesized by microwave-assisted sol-gel method. The Ti-Cr catalyst was characterized by X-ray diffraction, ultraviolet-visible diffuse reflectance spectroscopy, N2 adsorption-desorption analysis, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy, photoluminescence spectroscopy, X-ray photoelectron spectroscopy (XPS) and zetametry. The anatase mesoporous Ti-Cr material exhibited a specific surface area of 54.5 m2/g. XPS analysis confirmed the proper substitution of Ti4+ cations by Cr3+ cations in the TiO2 matrix. The particle size was of average size of 17 nm for the undoped TiO2 but only 9.5 nm for Ti-Cr. The Cr atoms promoted the formation of hydroxyl radicals and modified the surface adsorptive properties of TiO2 due to the increase in surface acidity of the material. The photocatalytic evaluation demonstrated that the Ti-Cr catalyst completely degraded (4-chloro-2-methylphenoxy) acetic acid under visible light irradiation, while undoped TiO2 and P25 allowed 45.7% and 31.1%, respectively. The rate of degradation remained 52% after three cycles of catalyst reuse. The higher visible light photocatalytic activity of Ti-Cr was attributed to the beneficial effect of Cr3+ ions on the TiO2 surface creating defects within the TiO2 crystal lattice, which can act as charge-trapping sites, reducing the electron-hole recombination process.
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Affiliation(s)
| | - Jorge Luis Guzmán-Mar
- a Facultad de Ciencias Químicas , Universidad Autónoma de Nuevo León, UANL , San Nicolás de los Garza , México
| | - Gemma Turnes-Palomino
- b Department of Chemistry , University of the Balearic Islands , Palma de Mallorca , Spain
| | | | - Adolfo Caballero-Quintero
- c Laboratorio de Química Forense, Criminalística y Servicios Periciales , Procuraduría General de Justicia del Estado de Nuevo León , Monterrey , México
| | - Aracely Hernández-Ramírez
- a Facultad de Ciencias Químicas , Universidad Autónoma de Nuevo León, UANL , San Nicolás de los Garza , México
| | - Laura Hinojosa-Reyes
- a Facultad de Ciencias Químicas , Universidad Autónoma de Nuevo León, UANL , San Nicolás de los Garza , México
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14
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Moslah C, Aguilar T, Alcántara R, Ksibi M, Navas J. Synthesis of W-doped TiO2
by low-temperature hydrolysis: Effects of annealing temperature and doping content on the surface microstructure and photocatalytic activity. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201800201] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cherif Moslah
- Departamento de Química Física, Facultad de Ciencias; Universidad de Cádiz; Cádiz Spain
- Laboratory of Environment Engineering and Ecotechnology, ENIS; University of Sfax; Sfax Tunisia
| | - Teresa Aguilar
- Departamento de Química Física, Facultad de Ciencias; Universidad de Cádiz; Cádiz Spain
| | - Rodrigo Alcántara
- Departamento de Química Física, Facultad de Ciencias; Universidad de Cádiz; Cádiz Spain
| | - Mohamed Ksibi
- Laboratory of Environment Engineering and Ecotechnology, ENIS; University of Sfax; Sfax Tunisia
| | - Javier Navas
- Departamento de Química Física, Facultad de Ciencias; Universidad de Cádiz; Cádiz Spain
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15
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Bhaskaruni SV, Maddila S, van Zyl WE, Jonnalagadda SB. V 2 O 5 /ZrO 2 as an efficient reusable catalyst for the facile, green, one-pot synthesis of novel functionalized 1,4-dihydropyridine derivatives. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.05.038] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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16
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Mendiola-Alvarez SY, Guzmán-Mar JL, Turnes-Palomino G, Maya-Alejandro F, Hernández-Ramírez A, Hinojosa-Reyes L. UV and visible activation of Cr(III)-doped TiO 2 catalyst prepared by a microwave-assisted sol-gel method during MCPA degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:12673-12682. [PMID: 27832437 DOI: 10.1007/s11356-016-8034-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 11/01/2016] [Indexed: 06/06/2023]
Abstract
Photocatalytic degradation of 4-chloro-2-methylphenoxyacetic acid (MCPA) in aqueous solution using Cr(III)-doped TiO2 under UV and visible light was investigated. The semiconductor material was synthesized by a microwave-assisted sol-gel method with Cr(III) doping contents of 0.02, 0.04, and 0.06 wt%. The catalyst was characterized using X-ray powder diffraction (XRD), scanning electron microscopy (SEM), nitrogen physisorption, UV-Vis diffuse reflectance spectroscopy (DRS), and atomic absorption spectroscopy (AAS). The photocatalytic activity for the photodegradation of MCPA was followed by reversed-phase high-performance liquid chromatography (HPLC) and total organic carbon (TOC) analysis. The intermediates formed during degradation were identified using gas chromatography-mass spectrometry (GC-MS). Chloride ion evolution was measured by ion chromatography. Characterization results showed that Cr(III)-doped TiO2 materials possessed a small crystalline size, high surface area, and mesoporous structure. UV-Vis DRS showed enhanced absorption in the visible region as a function of the Cr(III) concentration. The Cr(III)-doped TiO2 catalyst with 0.04 wt% of Cr(III) was more active than bare TiO2 for the degradation of MCPA under both UV and visible light. The intermediates identified during MCPA degradation were 4-chloro-2-methylphenol (CMP), 2-(4-hydroxy-2-methylphenoxy) acetic acid (HMPA), and 2-hydroxybuta-1,3-diene-1,4-diyl-bis (oxy)dimethanol (HBDM); the formation of these intermediates depended on the radiation source.
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Affiliation(s)
- S Y Mendiola-Alvarez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, Cd. Universitaria, C.P. 66455, San Nicolás de los Garza, Nuevo León, Mexico
| | - J L Guzmán-Mar
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, Cd. Universitaria, C.P. 66455, San Nicolás de los Garza, Nuevo León, Mexico
| | - G Turnes-Palomino
- Department of Chemistry, University of the Balearic Islands, 07122, Palma de Mallorca, Spain
| | - F Maya-Alejandro
- Department of Chemistry, University of the Balearic Islands, 07122, Palma de Mallorca, Spain
| | - A Hernández-Ramírez
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, Cd. Universitaria, C.P. 66455, San Nicolás de los Garza, Nuevo León, Mexico
| | - L Hinojosa-Reyes
- Facultad de Ciencias Químicas, Universidad Autónoma de Nuevo León, UANL, Cd. Universitaria, C.P. 66455, San Nicolás de los Garza, Nuevo León, Mexico.
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17
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Liu X, Shi Y, Dong Y, Li H, Xia Y, Wang H. A facile solvothermal approach for the synthesis of novel W-doped TiO2 nanoparticles/reduced graphene oxide composites with enhanced photodegradation performance under visible light irradiation. NEW J CHEM 2017. [DOI: 10.1039/c7nj02320k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
W-Doped TiO2 nanoparticles/reduced graphene oxide composites have been synthesized for the first time. The mechanism of their high photocatalytic activity for MB has been identified and discussed.
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Affiliation(s)
- Xiang Liu
- The Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Yidan Shi
- The Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Yuming Dong
- The Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Hexing Li
- The Key Laboratory of the Chinese Ministry of Education in Resource Chemistry
- Shanghai Normal University
- Shanghai 200234
- P. R. China
| | - Yongmei Xia
- The Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Haijun Wang
- The Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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18
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Foura G, Soualah A, Robert D. Effect of W doping level on TiO 2 on the photocatalytic degradation of Diuron. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2017; 75:20-27. [PMID: 28067642 DOI: 10.2166/wst.2016.472] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In the present study, three compositions of W-doped titania nano-photocatalyst are synthesized via the sol-gel method. The powders obtained were characterized by X-ray diffraction, Raman spectroscopy and UV-visible diffuse reflectance spectroscopy. The photocatalytic performances of the different photocatalysts are tested with respect to the degradation of Diuron in water solutions under simulated solar light and visible light irradiation. The W0.03Ti0.97O2 catalyst exhibits better photoactivity than the pure TiO2 even under simulated solar light and visible light. This improvement in activity was attributed to photoelectron/hole separation efficiency.
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Affiliation(s)
- Ghania Foura
- Laboratoire de Physico-chimie des Matériaux et Catalyse, Faculté des Sciences Exactes, Université de Bejaia, Bejaia 06000, Algeria; Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS, Université de Strasbourg, Antenne de Saint-Avold, Université de Lorraine rue Victor Demange, Saint-Avold 57500, France E-mail:
| | - Ahcène Soualah
- Laboratoire de Physico-chimie des Matériaux et Catalyse, Faculté des Sciences Exactes, Université de Bejaia, Bejaia 06000, Algeria
| | - Didier Robert
- Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé (ICPEES), CNRS, Université de Strasbourg, Antenne de Saint-Avold, Université de Lorraine rue Victor Demange, Saint-Avold 57500, France E-mail:
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19
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Towards a large scale aqueous sol-gel synthesis of doped TiO2: Study of various metallic dopings for the photocatalytic degradation of p-nitrophenol. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2016.06.029] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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20
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Synthesis of N and F co-doped TiO2 nanophotocatalysts for degradation of malathion in water. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2629-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Wei C, Feng D, Xia Y. Fast adsorption and removal of 2-methyl-4-chlorophenoxy acetic acid from aqueous solution with amine functionalized zirconium metal–organic framework. RSC Adv 2016. [DOI: 10.1039/c6ra18520g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
An amino functionalized zirconium-based MOF named UiO-66-NH2 was synthesized and explored as a novel adsorbent for the fast removal of 2-methyl-4-chlorophenoxy acetic acid (MCPA) in aqueous solution.
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Affiliation(s)
- Cuixiang Wei
- Research Center for Analytical Sciences
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Dan Feng
- Research Center for Analytical Sciences
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Yan Xia
- Research Center for Analytical Sciences
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
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