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Sun F, Song J, Wen H, Cao X, Zhao F, Qin J, Mao W, Tang X, Dong L, Long Y. Ce 4+/Ce 3+ Redox Effect-Promoted CdS/CeO 2 Heterojunction Photocatalyst for the Atom Economic Synthesis of Imines under Visible Light. Inorg Chem 2023; 62:17961-17971. [PMID: 37857562 DOI: 10.1021/acs.inorgchem.3c02907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
The employment of stoichiometric alcohols and amines for imine synthesis under mild and green reaction conditions is still a challenge in the field. In this work, based on our research foundation in the thermocatalytic synthesis of imines over ceria, a CdS/CeO2 heterojunction photocatalyst was constructed and successfully realized the atom-economic synthesis of imines under visible light without additives at room temperature. Mechanistic experiments and corresponding characterizations indicated that the CdS/CeO2 heterojunction can improve the separation efficiency of photogenerated carriers, which can be further enhanced by the Ce4+/Ce3+ redox pair by rapidly combining photogenerated e-. The in situ-reduced Ce3+ can better activate O2 to form Ce-O-O·, which, together with h+, efficiently accelerates alcohol oxidation, which is the rate-determined step for the synthesis of imines via oxidative coupling reaction of alcohol and amine. In addition, our photocatalyst exhibited fairly decent reusability and substrate universality. This work solves problems of using base additives and excess amine or alcohol in the reported photocatalytic systems and provides new insight for designing CeO2-based photocatalytic oxidation catalysts.
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Affiliation(s)
- Fangkun Sun
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jie Song
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - He Wen
- Lanzhou Petrochemical Research Center, Petrochemical Research Institute, PetroChina, Lanzhou 730060, P. R. China
| | - Xiao Cao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Feng Zhao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jiaheng Qin
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Weiwen Mao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xiaoqi Tang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Linkun Dong
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yu Long
- State Key Laboratory of Applied Organic Chemistry (SKLAOC), Gansu Provincial Engineering Laboratory for Chemical Catalysis, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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2
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Ghattavi S, Nezamzadeh-Ejhieh A. A mechanistic study of the photocatalytic activity of AgI–WO 3 in an experimentally designed approach toward methylene blue photodegradation. Catal Sci Technol 2023. [DOI: 10.1039/d2cy01815b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The visible light-active AgI/WO3 binary photocatalyst has been characterized using XRD, FTIR spectroscopy, SEM-EDX, cyclic voltammetry (CV), photoluminescence (PL), and UV–vis DRS techniques.
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Affiliation(s)
- Shirin Ghattavi
- Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Islamic Republic of Iran
- Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Islamic Republic of Iran
| | - Alireza Nezamzadeh-Ejhieh
- Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza, Islamic Republic of Iran
- Razi Chemistry Research Center (RCRC), Shahreza Branch, Islamic Azad University, Shahreza, Islamic Republic of Iran
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3
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Rostami M, Badiei A, Ganjali MR, Rahimi-Nasrabadi M, Naddafi M, Karimi-Maleh H. Nano-architectural design of TiO 2 for high performance photocatalytic degradation of organic pollutant: A review. ENVIRONMENTAL RESEARCH 2022; 212:113347. [PMID: 35513059 DOI: 10.1016/j.envres.2022.113347] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 03/18/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
In the past several decades, significant efforts have been paid toward photocatalytic degradation of organic pollutants in environmental research. During the past years, titanium dioxide nano-architectures (TiO2 NAs) have been widely used in water purification applications with photocatalytic degradation processes under Uv/Vis light illumination. Photocatalysis process with nano-architectural design of TiO2 is viewed as an efficient procedure for directly channeling solar energy into water treatment reactions. The considerable band-gap values and the subsequent short life time of photo-generated charge carriers are showed among the limitations of this approach. One of these effective efforts is the using of oxidation processes with advance semiconductor photocatalyst NAs for degradation the organic pollutants under UV/Vis irradiation. Among them, nano-architectural design of TiO2 photocatalyst (such as Janus, yolk-shell (Y@S), hollow microspheres (HMSs) and nano-belt) is an effective way to improve oxidation processes for increasing photocatalytic activity in water treatment applications. In the light of the above issues, this study tends to provide a critical overview of the used strategies for preparing TiO2 photocatalysts with desirable physicochemical properties like enhanced absorption of light, low density, high surface area, photo-stability, and charge-carrier behavior. Among the various nanoarchitectural design of TiO2, the Y@S and HMSs have created a great appeal given their considerable large surface area, low density, homogeneous catalytic environment, favorable light harvesting properties, and enhanced molecular diffusion kinetics of the particles. In this review was summarized the developments that have been made for nano-architectural design of TiO2 photocatalyst. Additional focus is placed on the realization of interfacial charge and the possibility of achieving charge carriers separation for these NAs as electron migration is the extremely important factor for increasing the photocatalytic activity.
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Affiliation(s)
- Mojtaba Rostami
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran.
| | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran; Biosensor Research Center, Endocrinology and Metabolism Molecular Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Rahimi-Nasrabadi
- Chemical Injuries Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran; Faculty of Pharmacy, Baqiyatallah University of Medical Sciences, Tehran, Iran; Institute of Electronic and Sensor Materials, TU Bergakademie Freiberg, Freiberg, 09599, Germany
| | - Mastoureh Naddafi
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, PR China
| | - Hassan Karimi-Maleh
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, PR China; Department of Chemical Engineering, Quchan University of Technology, Quchan, 9477177870, Iran; Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus 2028, Johannesburg, 17011, South Africa.
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4
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Celebi N, Salimi K. Yolk-shell ZnO@C-CeO 2 ternary heterostructures with conductive N-doped carbon mediated electron transfer for highly efficient water splitting. J Colloid Interface Sci 2021; 605:23-32. [PMID: 34311312 DOI: 10.1016/j.jcis.2021.07.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 12/15/2022]
Abstract
Herein, carbon-incorporated yolk-shell ZnO@C-CeO2 ternary heterostructures are employed as visible light responsive photocatalyst for highly efficient photoelectrochemical (PEC) water splitting. Compared to conventional ZnO/CeO2 semiconductors, introduction of a thin PDA shell layer assures the generation of a conductive N-doped graphitic carbon layer after a calcination post-treatment with mesoporous hollow morphologies. The evaluation of PEC water splitting performance of ZnO@C-CeO2 photoanodes reveals the maximum photocurrent density as 7.43 mA/cm2 at 1.18 V RHE under light whereas almost no response is recorded at dark. These superior PEC H2 evolution performance strongly implies efficient charge separation, facilitated charge transfer between photoanode and electrolyte interface as well as within the semiconductor bulk by means of rapid electron transfer ability of N-doped graphitic carbon layer and prolong life time of light inside yolk-shell structure. Furthermore, considerable depression in PL intensity of ZnO@C-CeO2 photoanodes compared to ZnO clearly reveals a higher photon absorption due to the reflection of light in hollow region and increase in electron hole separation efficiency. Moreover, plausible Z-scheme charge transfer mechanism using ZnO@C-CeO2 photoanodes under visible light illumination is verified using radical trapping experiments and X-ray photoelectron spectroscopy (XPS) methods, suggesting new generation of heterostructures for sufficient conversion of sunlight to H2 fuels.
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Affiliation(s)
- Nuray Celebi
- Ankara Yildirim Beyazit University, Faculty of Engineering and Natural Sciences, Department of Energy Systems Engineering, Ankara, Turkey
| | - Kouroush Salimi
- Ankara Yildirim Beyazit University, Faculty of Engineering and Natural Sciences, Department of Chemical Engineering, Ankara, Turkey.
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5
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Gnanasekaran L, Rajendran S, Priya AK, Durgalakshmi D, Vo DVN, Cornejo-Ponce L, Gracia F, Soto-Moscoso M. Photocatalytic degradation of 2,4-dichlorophenol using bio-green assisted TiO 2-CeO 2 nanocomposite system. ENVIRONMENTAL RESEARCH 2021; 195:110852. [PMID: 33556356 DOI: 10.1016/j.envres.2021.110852] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/27/2021] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
In recent times, cost effective synthesis of semiconductor materials has been a subject of concern for the day to today applications. In this work, novelty has been made on the facile synthesis of metal oxides (TiO2 and CeO2) and nanocomposites (TiO2-CeO2) through sol-gel and precipitation methods of imparting lemon extract. The synthesized materials behave as the functional catalysts which has been further carried out for the photocatalytic degradation against 2,4-Dichlorophenol (2,4-DCP). The materials are then valued for the structural and optical properties. The lemon extract used in synthesis has played a premier role in upgrading the charge carrier separation, bandgap, and size reduction of the composite system. Further, the CeO2 supported TiO2 sample acts as the better visible light catalyst, due to the prevention of aggregation and existence of line dislocation that supported to access the additional electron trap sites.
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Affiliation(s)
- Lalitha Gnanasekaran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, Arica, 1775, Chile
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, Arica, 1775, Chile.
| | - A K Priya
- Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore, 641027, India
| | - D Durgalakshmi
- Department of Medical Physics, CEG Campus, Anna University, Chennai, 600 025, India
| | - Dai-Viet N Vo
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam
| | - Lorena Cornejo-Ponce
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, Arica, 1775, Chile
| | - F Gracia
- Department of Chemical Engineering, Biotechnology and Materials, University of Chile, Beauchef 851, 6th Floor, Santiago, Chile
| | - Matias Soto-Moscoso
- Departamento de Física, Facultad de Ciencias, Universidad Del Bío-bío, Avenida Collao 1202, Casilla 15-C, Concepción, Chile
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6
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A CeO2 Semiconductor as a Photocatalytic and Photoelectrocatalytic Material for the Remediation of Pollutants in Industrial Wastewater: A Review. Catalysts 2020. [DOI: 10.3390/catal10121435] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The direct discharge of industrial wastewater into the environment results in serious contamination. Photocatalytic treatment with the application of sunlight and its enhancement by coupling with electrocatalytic degradation offers an inexpensive and green technology enabling the total removal of refractory pollutants such as surfactants, pharmaceuticals, pesticides, textile dyes, and heavy metals, from industrial wastewater. Among metal oxide—semiconductors, cerium dioxide (CeO2) is one of the photocatalysts most commonly applied in pollutant degradation. CeO2 exhibits promising photocatalytic activity. Nonetheless, the position of conduction bands (CB) and valence bands (VB) in CeO2 limits its application as an efficient photocatalyst utilizing solar energy. Its photocatalytic activity in wastewater treatment can be improved by various modification techniques, including changes in morphology, doping with metal cation dopants and non-metal dopants, coupling with other semiconductors, and combining it with carbon supporting materials. This paper presents a general overview of CeO2 application as a single or composite photocatalyst in the treatment of various pollutants. The photocatalytic characteristics of CeO2 and its composites are described. The main photocatalytic reactions with the participation of CeO2 under UV and VIS irradiation are presented. This review summarizes the existing knowledge, with a particular focus on the main experimental conditions employed in the photocatalytic and photoelectrocatalytic degradation of various pollutants with the application of CeO2 as a single and composite photocatalyst.
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7
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Abstract
Catalytic air oxidation (CAO) is an economical, environmentally friendly, and efficient
technology used to treat wastewater that contains refractory organics. This review analyzes recent
studies regarding five common types of CAO that use external energy sources (heat, light radiation,
microwave, and electricity) or non-oxidizing chemical promoters (nitrites and sulfites). Methods
include hydrothermal, electro-assisted, photocatalytic, microwave-assisted, and non-oxidizing
chemical-assisted CAO. The associated catalytic mechanisms are discussed in detail in order to explain
the connections between CAO catalytic pathways. Mechanisms include O2 activation via excitation,
free-radical autocatalytic reactions, and coordination catalysis. Classical kinetic mechanisms,
including Mars-van Krevelen and Langmuir-Hinshelwood, are also proposed to reveal
overall CAO dynamic processes. The catalysts used in each CAO technology are summarized, with
a focus on their catalytic pathways and the methods by which they might be improved. Finally, important
challenges and research directions are proposed. The proposals focus on further research regarding
catalyst mechanisms, mechanism-guided catalyst design, and process improvement.
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Affiliation(s)
- Qi Jing
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Huan li
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
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8
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Chen Q, Liu L, Liu L, Zhang Y. A novel UV-assisted PEC-MFC system with CeO 2/TiO 2/ACF catalytic cathode for gas phase VOCs treatment. CHEMOSPHERE 2020; 255:126930. [PMID: 32402878 DOI: 10.1016/j.chemosphere.2020.126930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 04/05/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Emissions of volatile organic compounds (VOCs) air pollutants could worsen air quality and adversely affect human health, thus developing more efficient low-temperature VOCs removal techniques is desired. A novel continuous system integrating UV-assisted photo-electrochemical catalysis with microbial fuel cell (UV-assisted PEC-MFC) has been established for promoting removal of gaseous ethyl acetate or toluene and generating electricity simultaneously. In this system, CeO2/TiO2/ACF catalytic cathode is prepared and used for combination with bio-anode for accelerating cathodic reaction. This UV-assisted PEC-MFC system exhibits an excellent elimination capacity (EC) of ethyl acetate (∼0.39 g/m3, EC: ∼2.52 g/m3/h) or toluene (∼0.29 g/m3, EC: 1.89 g/m3/h) under close-circuit condition. Furthermore, an outstanding elimination capacity (EC: 28.04 g/m3/h) for high concentration toluene (∼4.10 g/m3) removal is obtained after toluene gas passes sequentially through the catalytic cathode then the bio-anode. This way of PEC degradation and biodegradation, avoids inhibition of exoelectrogens activity from toxicity of high concentration toluene. Simultaneously, the cell voltage of UV-assisted PEC-MFC system is stable at 0.11 V (vs. SCE) and 1.452×10-4 kWh is generated from treatment of toluene gas stream in 6 h duration time. The possible mechanism of VOCs removal in this novel system has been proposed and discussed. This study provides new technical basis for treating gaseous pollutants via integrating photo-electrochemical catalysis with electricity generating microbial fuel cell for energy conversion.
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Affiliation(s)
- Qiyuan Chen
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Lu Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
| | - Lifen Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China; School of Ocean Science and Technology, Dalian University of Technology, Panjin, 124221, China.
| | - Yizhen Zhang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
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9
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Sunaina, Yadav KK, Ankush, Guchhait SK, Sood K, Mehta S, Ganguli A, Jha M. Mechanistic insights of enhanced photocatalytic efficiency of SnO2-SnS2 heterostructures derived from partial sulphurization of SnO2. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.116835] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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10
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Morlando A, Chaki Borrás M, Rehman Y, Bakand S, Barker P, Sluyter R, Konstantinov K. Development of CeO 2 nanodot encrusted TiO 2 nanoparticles with reduced photocatalytic activity and increased biocompatibility towards a human keratinocyte cell line. J Mater Chem B 2020; 8:4016-4028. [PMID: 32347289 DOI: 10.1039/d0tb00629g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The cytotoxic and genotoxic effects of titanium dioxide (TiO2) nanoparticles when exposed to ultraviolet (UV) radiation, particularly wavelengths between 320-400 nm, has raised concern over their safe use in health and cosmetic related products such as sunscreens. Cerium dioxide (CeO2) nanoparticles have been demonstrated to display biocompatible properties and antioxidant activity due to redox cycling of the Ce3+/Ce4+ oxidation states. In this work, CeO2/TiO2 nanocomposites were prepared through a standard precipitation method at atomic concentrations (at%) of Ce relative to Ti of 2.5, 5 and 10 at%, with the aim of reducing the photocatalytic activity of the core TiO2 nanoparticles and improve biocompatibility. The UV absorptive properties of the nanocomposite samples revealed excellent absorbance across the UV region as compared to pristine TiO2 and CeO2. Furthermore, a drastic reduction in the photocatalysed decomposition of crystal violet, when in the presence of the nanocomposite samples, under both UV and solar simulated light was observed compared to the highly photoactive pristine TiO2. An optimal CeO2 nanodot loading, displaying both high UV attenuation and low photocatalytic performance was determined at 5 at% and further in vitro biological testing revealed minimal impact on the cell viability of the human keratinocyte cell line (HaCaT) over a 24 h period with and without prior exposure to UV irradiation. In contrast, pristine TiO2 nanoparticles induced toxicity to HaCaT cells with prior UV exposure before incubation, particularly at a dosage of 100 mg L-1. Our findings demonstrate the effectiveness of CeO2 nanodots in improving biocompatibility and its potential as a coating material for active inorganic UV filters.
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Affiliation(s)
- Alexander Morlando
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, NSW 2500, Australia. and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Marcela Chaki Borrás
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, NSW 2500, Australia. and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia and Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Yaser Rehman
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, NSW 2500, Australia. and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
| | - Shahnaz Bakand
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia and School of Health and Society, University of Wollongong, NSW 2522, Australia
| | - Philip Barker
- Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Ronald Sluyter
- Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia and Molecular Horizons and School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Konstantin Konstantinov
- Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, NSW 2500, Australia. and Illawarra Health and Medical Research Institute, Wollongong, NSW 2522, Australia
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11
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Wang X, Song S, Zhang H. A redox interaction-engaged strategy for multicomponent nanomaterials. Chem Soc Rev 2020; 49:736-764. [DOI: 10.1039/c9cs00379g] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The review article focuses on the redox interaction-engaged strategy that offers a powerful way to construct multicomponent nanomaterials with precisely-controlled size, shape, composition and hybridization of nanostructures.
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Affiliation(s)
- Xiao Wang
- School of Chemical and Biological Engineering
- Seoul National University
- Seoul
- Republic of Korea
| | - Shuyan Song
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Hongjie Zhang
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
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12
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Chen D, Huang S, Huang R, Zhang Q, Le TT, Cheng E, Yue R, Hu Z, Chen Z. Construction of Ni-doped SnO 2-SnS 2 heterojunctions with synergistic effect for enhanced photodegradation activity. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:204-213. [PMID: 30677652 DOI: 10.1016/j.jhazmat.2019.01.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 01/04/2019] [Accepted: 01/05/2019] [Indexed: 06/09/2023]
Abstract
Construction of heterostructures with proper band alignment and effective transport and separation of photogenerated charges is highly expected for photocatalysis. In this work, Ni-doped SnO2-SnS2 heterostructures (NiSnSO) are simply prepared by thermal oxidation of Ni-doped hierarchical SnS2 microspheres in the air. When applied for the photodegradation of organic contaminants, these NiSnSO exhibit excellent catalytic performance and stability due to the following advantages: (1) Ni doping leads to the enhancement of light harvesting of SnS2 in the visible light regions; (2) the formed heterojunctions promote the transport and separation of photogenerated electrons from SnS2 to SnO2; (3) Ni-SnO2 quantum dots facilitate the enrichment of reactants, provide more reactive centers and accelerate product diffusion in the reactive centers; (4) the SnS2 hierarchical microspheres constituted by nanoplates provide abundant active sites, high structural void porosity and accessible inner surface to faciliate the catalytic reactions. As a result, the optimized NiSnSO can photodegrade 92.7% methyl orange within 80 min under the irradiation of simulated sunlight, greatly higher than those of pure SnS2 (29.8%) and Ni-doped SnS2 (52.1%). These results reveal that the combination of heteroatom doping and heterostructure fabrication is a very promising strategy to deliver nanomaterials for effectively photocatalytic applications.
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Affiliation(s)
- Dayong Chen
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China; School of Chemical and Material Engineering, Chizhou University, Chizhou 247100, People's Republic of China
| | - Shoushuang Huang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China.
| | - Ruting Huang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Qian Zhang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Thanh-Tung Le
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Erbo Cheng
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China
| | - Rong Yue
- Department of Physics, College of Sciences, Shanghai University, Shanghai 200444, People's Republic of China
| | - Zhangjun Hu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China.
| | - Zhiwen Chen
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, People's Republic of China.
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13
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Li A, Zhu W, Li C, Wang T, Gong J. Rational design of yolk–shell nanostructures for photocatalysis. Chem Soc Rev 2019; 48:1874-1907. [DOI: 10.1039/c8cs00711j] [Citation(s) in RCA: 184] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Yolk–shell structures provide an ideal platform for the rational regulation and effective utilization of charge carriers because of their void space and large surface areas. Furthermore, the efficiency of charge behavior in every step can be further improved by many strategies. This review describes the synthesis of yolk–shell structures and their effect for the enhancement of heterogeneous photocatalysis.
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Affiliation(s)
- Ang Li
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
- Tianjin
- China
| | - Wenjin Zhu
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
- Tianjin
- China
| | - Chengcheng Li
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
- Tianjin
- China
| | - Tuo Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
- Tianjin
- China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education
- School of Chemical Engineering and Technology
- Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)
- Tianjin
- China
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14
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Liao Y, Yuan B, Zhang D, Zhang J, Wang X, Deng P, Zhang K, Zhang H, Xiang Q, Zhong Z. Fabrication of Heterostructured Metal Oxide/TiO2 Nanotube Arrays Prepared via Thermal Decomposition and Crystallization. Inorg Chem 2018; 57:10249-10256. [DOI: 10.1021/acs.inorgchem.8b01483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yulong Liao
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, China
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Botao Yuan
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Dainan Zhang
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, China
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Jin Zhang
- School of Optoelectronic Engineering, Xi’an Technological University, Xi’an 710032,China
| | - Xiaoyi Wang
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Peng Deng
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Kaibin Zhang
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Huaiwu Zhang
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Quanjun Xiang
- Center for Applied Chemistry, University of Electronic Science and Technology of China, Chengdu 611731, China
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Zhiyong Zhong
- State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
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15
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Yang YC, Huang WQ, Xu L, Hu W, Peng P, Huang GF. Hybrid TiO2/graphene derivatives nanocomposites: is functionalized graphene better than pristine graphene for enhanced photocatalytic activity? Catal Sci Technol 2017. [DOI: 10.1039/c6cy02224c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Graphene (GR) and its derivatives are generally assumed to be electron shuttles in order to explain the improved photocatalytic activity of their nanocomposites (such as TiO2/GR).
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Affiliation(s)
- Yin-Cai Yang
- Department of Applied Physics
- School of Physics and Electronics
- Hunan University
- Changsha 410082
- China
| | - Wei-Qing Huang
- Department of Applied Physics
- School of Physics and Electronics
- Hunan University
- Changsha 410082
- China
| | - Liang Xu
- Department of Applied Physics
- School of Physics and Electronics
- Hunan University
- Changsha 410082
- China
| | - Wangyu Hu
- School of Materials Science and Engineering
- Hunan University
- Changsha 410082
- China
| | - P. Peng
- School of Materials Science and Engineering
- Hunan University
- Changsha 410082
- China
| | - Gui-Fang Huang
- Department of Applied Physics
- School of Physics and Electronics
- Hunan University
- Changsha 410082
- China
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