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Habibi-Yangjeh A, Pournemati K, Ahmadi Z, Khataee A. Decoration of Carbon Dots on Oxygen-Vacancy-Enriched S-Scheme TiO 2 Quantum Dots/TiO 2 Oxygen Vacancies Photocatalysts: Impressive Quantum-Dot-Sized Photocatalysts for Remediation of Antibiotics, Bacteria, and Dyes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:8503-8519. [PMID: 38608275 DOI: 10.1021/acs.langmuir.4c00060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
Today, cleaning the environment using photocatalytic technology is one of the main research activities. In this study, carbon dots (C-dots) were anchored on oxygen-vacancy-enriched TiO2 quantum dots (QDs)/TiO2 oxygen vacancies (OVs) using a facile procedure. The resultant ternary TiO2 QDs/TiO2 OVs/C-dots photocatalysts with a quantum dot size of almost 4.55 nm were used for detoxification of aqueous solutions containing four antibiotics and three organic dyes as well as inactivation of two pathogenic bacteria, including Escherichia coli and Staphylococcus aureus, upon visible light. The degradation constant of tetracycline over the optimized TiO2 QDs/TiO2 OVs/C-dots nanocomposite reached 714 × 10-4 min-1, which was 17.3, 12.1, and 2.92 times higher than TiO2 QDs, TiO2 OVs, and TQDs/TOVs (1:1) materials, respectively. Effective separation of electron-hole pairs between TiO2 QDs and TiO2 OVs counterparts through decorated C-dots by an established S-scheme system was the main reason for boosted photocatalytic activity. With regard to the facile growth of wheat and lentil seeds in the treated solutions, it is hoped that the TiO2 QDs/TiO2 OVs/C-dots nanocomposite with significant stability could be used to clean up wastewaters.
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Affiliation(s)
- Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, 56199-13131 Ardabil, Iran
| | - Khadijeh Pournemati
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, 56199-13131 Ardabil, Iran
| | - Ziba Ahmadi
- Department of Biology, Faculty of Science, University of Mohaghegh Ardabili, 56199-13131 Ardabil, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran
- Department of Chemical Engineering, Istanbul Technical University, 34469 Istanbul, Turkey
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2
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Li Z, Ji H, Feng Z, Li Z, Gao H, Tan Y, Yao L, Deng Q, Sun Y, Shao M. A rationally designed 3DTiO 2@CdZnS heterojunction photocatalyst for effectively enhanced visible-light-driven hydrogen evolution. Dalton Trans 2024; 53:2551-2557. [PMID: 38221819 DOI: 10.1039/d3dt03532h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Hydrogen production with higher efficiency and lower cost is of great significance for the sustainable development of energy. Zinc cadmium sulfide (CZS) is gaining more attention owing to its excellent photocatalytic properties. However, its development is greatly limited due to photogenerated charge recombination. In this work, an innovative design with a unique 3D morphology was introduced by integrating 3DTiO2 into CZS to form a novel 3DTiO2/CZS heterojunction photocatalyst. As a result, the optimized composite achieved a very high hydrogen production rate of 75.38 mmol h-1 g-1 under visible light, which is 2.4 times higher than that of the original CZS. It can also be greatly demonstrated through photoelectrochemical tests that this unique 3D morphology contributes to the effective separation of electrons and holes, thus dramatically improving the photocatalytic activity of 3DTiO2/CZS composites. The 3DTiO2/CZS composite has a rational energy band structure, which makes it more favorable for the hydrogen precipitation reaction. It is believed that such a modification strategy based on 3DTiO2 can be applied to other similar photocatalysts as well for boosting hydrogen evolution.
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Affiliation(s)
- Zhuoyang Li
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
- Joint Institute of Guangzhou University & Institute of Corrosion Science and Technology, Guangzhou University, Guangzhou 510275, China
| | - Hao Ji
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
- Joint Institute of Guangzhou University & Institute of Corrosion Science and Technology, Guangzhou University, Guangzhou 510275, China
| | - Ziwen Feng
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
- Joint Institute of Guangzhou University & Institute of Corrosion Science and Technology, Guangzhou University, Guangzhou 510275, China
| | - Zelin Li
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Hang Gao
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Yipeng Tan
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Lingmin Yao
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
- Joint Institute of Guangzhou University & Institute of Corrosion Science and Technology, Guangzhou University, Guangzhou 510275, China
| | - Qinglin Deng
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
- Research Center for Advanced Information Materials, Huangpu Research & Graduate School of Guangzhou University, Guangzhou 510555, China
| | - Yu Sun
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China.
| | - Mengmeng Shao
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, China
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Zhang Y, Ju S, Casals G, Tang J, Lin Y, Li X, Liang L, Jia Z, Zeng M, Casals E. Facile aqueous synthesis and comparative evaluation of TiO 2-semiconductor and TiO 2-metal nanohybrid photocatalysts in antibiotics degradation under visible light. RSC Adv 2023; 13:33187-33203. [PMID: 37954413 PMCID: PMC10636657 DOI: 10.1039/d3ra06231g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 11/05/2023] [Indexed: 11/14/2023] Open
Abstract
Advanced oxidation processes using TiO2-based nanomaterials are sustainable technologies that hold great promise for the degradation of many types of pollutants including pharmaceutical residues. A wide variety of heterostructures coupling TiO2 with visible-light active nanomaterials have been explored to shift its photocatalytic properties to harness sun irradiation but a systematic comparison between them is lacking in the current literature. Furthermore, the high number of proposed nanostructures with different size, morphology, and surface area, and the often complex synthesis processes hamper the transition of these materials into commercial and effective solutions for environmental remediation. Herein, we have designed a facile and cost-effective method to synthesize two heterostructured photocatalysts representative of two main families of novel structures proposed, hybrids of TiO2 with metal (Au) and semiconductor (CeO2) nanomaterials. The photocatalysts have been extensively characterized to ensure a good comparability in terms of co-catalyst doping characteristics, morphology and surface area. The photocatalytic degradation of ciprofloxacin and sulfamethoxazole as target pollutants, two antibiotics of high concern polluting water sources, has been evaluated and CeO2/TiO2 exhibited the highest activity, achieving complete antibiotic degradation at very low photocatalyst concentrations. Our study provides new insights into the development of inexpensive heterostructured photocatalysts and suggests that the non-stoichiometry and characteristic d and f electronic orbital configuration of CeO2 have a significantly improved role in the enhancement of the photocatalytic reaction.
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Affiliation(s)
- Yuping Zhang
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen 529020 PR China
| | - Shijie Ju
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen 529020 PR China
| | - Gregori Casals
- Biochemistry and Molecular Genetics Department, Clinical and Provincial Hospital of Barcelona Barcelona 08036 Spain
- IDIBAPS Research Center Barcelona 08036 Spain
| | - Jie Tang
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen 529020 PR China
| | - Yichao Lin
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen 529020 PR China
| | - Xiaofang Li
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen 529020 PR China
| | - Lihua Liang
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen 529020 PR China
| | - Zhiyu Jia
- Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology Beijing 100081 PR China
| | - Muling Zeng
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen 529020 PR China
| | - Eudald Casals
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen 529020 PR China
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Sudapalli A, Shimpi N. Investigation of the Photocatalytic Activity of Electrospun and Surface-Modified PAN/α-FeOOH Nanofibers for the Degradation of Hazardous Azo Dyes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15517-15534. [PMID: 37855146 DOI: 10.1021/acs.langmuir.3c01779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
Decoration of α-FeOOH nanorods over PAN nanofibers was performed using the electrospinning technique. The as-designed decorated nanofibers were characterized using various techniques such as wide-angle powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), Fourier transform infrared (FTIR) spectroscopy, UV-vis spectrophotometry (UV-vis), thermogravimetry analysis (TGA), N2 adsorption-desorption isotherm (BET), and X-ray photoelectron spectrometry (XPS). α-FeOOH NRs were decorated uniformly over PAN fibers, as observed from its morphological investigation, which shows novelty. 1D α-FeOOH nanorods with PAN nanofibers have not been studied for photocatalytic characteristics. No literature mentions that α-FeOOH nanorods coated in PAN NFs act as photocatalysts to degrade hazardous azo dyes. α-FeOOH nanorods on PAN NFs inhibit aggregation and increase dye binding, boosting photocatalytic performance. PAN/α-FeOOH NFs have a maximal specific surface area with a reduced bandgap than α-FeOOH NRs. PAN/α-FeOOH nanofibers showed excellent photocatalytic activity for the degradation of Trypan blue (TB) (120 min, 99.7%) and Eriochrome black T (EBT) dyes (160 min, 97.6%), respectively, under solar light irradiation. PAN/α-FeOOH NFs have the potential to be used in the degradation of azo dyes and the treatment of wastewater due to their low energy requirements and versatility.
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Affiliation(s)
- Aruna Sudapalli
- Laboratory of Materials Science and Technology Department of Chemistry, University of Mumbai Santa Cruz (E), Mumbai 400098, Maharashtra, India
| | - Navinchandra Shimpi
- Laboratory of Materials Science and Technology Department of Chemistry, University of Mumbai Santa Cruz (E), Mumbai 400098, Maharashtra, India
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5
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Balan B, Xavier MM, Mathew S. MoS 2-Based Nanocomposites for Photocatalytic Hydrogen Evolution and Carbon Dioxide Reduction. ACS OMEGA 2023; 8:25649-25673. [PMID: 37521597 PMCID: PMC10373465 DOI: 10.1021/acsomega.3c02084] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 06/27/2023] [Indexed: 08/01/2023]
Abstract
Photocatalysis is a facile and sustainable approach for energy conversion and environmental remediation by generating solar fuels from water splitting. Due to their two-dimensional (2D) layered structure and excellent physicochemical properties, molybdenum disulfide (MoS2) has been effectively utilized in photocatalytic H2 evolution reaction (HER) and CO2 reduction. The photocatalytic efficiency of MoS2 greatly depends on the active edge sites present in their layered structure. Modifications like reducing the layer numbers, creating defective structures, and adopting different morphologies produce more unsaturated S atoms as active edge sites. Hence, MoS2 acts as a cocatalyst in nanocomposites/heterojunctions to facilitate the photogenerated electron transfer. This review highlights the role of MoS2 as a cocatalyst for nanocomposites in H2 evolution reaction and CO2 reduction. The H2 evolution activity has been described comprehensively as binary (with metal oxide, carbonaceous materials, metal sulfides, and metal-organic frameworks) and ternary composites of MoS2. Photocatalytic CO2 reduction is a more complex and challenging process that demands an efficient light-responsive semiconductor catalyst to tackle the thermodynamic and kinetic factors. Photocatalytic reduction of CO2 using MoS2 is an emerging topic and would be a cost-effective substitute for noble catalysts. Herein, we also exclusively envisioned the possibility of layered MoS2 and its composites in this area. This review is expected to furnish an understanding of the diverse roles of MoS2 in solar fuel generation, thus endorsing an interest in utilizing this unique layered structure to create nanostructures for future energy applications.
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Affiliation(s)
- Bhagyalakshmi Balan
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
| | - Marilyn Mary Xavier
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
| | - Suresh Mathew
- School
of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686 560, India
- Advanced
Molecular Materials Research Centre (AMMRC), Mahatma Gandhi University, Kottayam, Kerala 686 560, India
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6
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Biswal L, Mishra BP, Das S, Acharya L, Nayak S, Parida K. Nanoarchitecture of a Ti 3C 2@TiO 2 Hybrid for Photocatalytic Antibiotic Degradation and Hydrogen Evolution: Stability, Kinetics, and Mechanistic Insights. Inorg Chem 2023; 62:7584-7597. [PMID: 37126844 DOI: 10.1021/acs.inorgchem.3c01138] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Designing of a visible-light-driven semiconductor-based heterojunction with suitable band alignment and well-defined interfacial contact is considered to be an effective strategy for the transformation of solar-to-chemical energy and environmental remediation. In this context, MXenes have received tremendous attention in the research community due to their merits of abundant derivatives, elemental composition, excellent metallic conductivity, and surface termination groups. Meanwhile, a facile synthetic strategy for MXene-derived TiO2 nanocomposites with stable framework and higher photocatalytic activity under visible-light irradiation still remains a challenge for researchers. Herein, we report a novel synthetic strategy of preparing a two-dimensional Ti3C2@TiO2 nanohybrid by a facile reflux method under acidic conditions. In this oxidation reaction, protonation of the hydroxyl terminal group of MXene creates Ti more electrophilic and susceptible to an oxidative nucleophilic addition reaction with the presence of both water and oxygen. The physicochemical properties of the nanohybrid Ti3C2@TiO2 were verified by varieties of characterization techniques. High-resolution transmission electron microscopy and X-ray photoelectron spectroscopy analysis specifically elucidated the intimate interfacial interaction between Ti3C2 and TiO2. The optimized Ti3C2@TiO2-48 h photocatalyst exhibited the highest tetracycline hydrochloride (TCH, 90% in 90 min) degradation efficiency in comparison to pristine TiO2 with a rate constant (k) of 0.02463 min-1. The major contribution of •O2- and •OH radicals throughout photocatalytic TCH degradation was confirmed by the trapping experiment. Moreover, the photocatalyst showed the highest hydrogen generation rate of 140.8 μmol h-1 along with an apparent conversion efficiency of 2.2%. The excellent photocatalytic activity of Ti3C2@TiO2 originated from the superior electrical conductivity of cocatalyst Ti3C2, which facilitated spatial photogenerated e-/h+ separation and transfer at the Ti3C2 MXene@TiO2 interface. Overall, this research work will describe a promising protocol of designing MXene-derived photocatalysts toward efficient environmental remediation and wastewater treatment applications.
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Affiliation(s)
- Lijarani Biswal
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha 'O' Anusandhan University, Bhubaneswar 751030, India
| | - Bhagyashree Priyadarshini Mishra
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha 'O' Anusandhan University, Bhubaneswar 751030, India
| | - Sarmistha Das
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha 'O' Anusandhan University, Bhubaneswar 751030, India
| | - Lopamudra Acharya
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha 'O' Anusandhan University, Bhubaneswar 751030, India
| | - Susanginee Nayak
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha 'O' Anusandhan University, Bhubaneswar 751030, India
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology, Institute of Technical Education and Research, Siksha 'O' Anusandhan University, Bhubaneswar 751030, India
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7
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Kamari V, Sharma A, Kumar N, Sillanpää M, Makgwane PR, Ahmaruzzaman M, Hosseini-Bandegharaei A, Rani M, Chinnumuthu P. TiO2-CeO2 assisted heterostructures for photocatalytic mitigation of environmental pollutants: A comprehensive study on band gap engineering and mechanistic aspects. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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8
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Alzahrani KA, Ismail AA, Alahmadi N. Heterojunction of CuMn2O4/CeO2 nanocomposites for promoted photocatalytic H2 evolution under visible light. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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9
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Li S, Hasan N, Ma H, Li OL, Lee B, Jia Y, Liu C. Significantly enhanced photocatalytic activity by surface acid corrosion treatment and Au nanoparticles decoration on the surface of SnFe2O4 nano-octahedron. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121650] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Influence of Conditions of Preparation of C,N,F-TiO2 Nanostructures on Their Photocatalytic Activity in Doxycycline Photodegradation Process. THEOR EXP CHEM+ 2022. [DOI: 10.1007/s11237-022-09720-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Rationally designed Ti 3C 2/N, S-TiO 2/g-C 3N 4 ternary heterostructure with spatial charge separation for enhanced photocatalytic hydrogen evolution. J Colloid Interface Sci 2022; 621:254-266. [PMID: 35461140 DOI: 10.1016/j.jcis.2022.04.071] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/04/2022] [Accepted: 04/10/2022] [Indexed: 11/22/2022]
Abstract
The charge separation and transfer are the major issues dominating the under-laying energy conversion mechanism for photocatalytic system. Construction of semiconductor-based heterojunction system considered to be viable option for boosting the spatial charge separation and transfer in the photocatalytic water splitting system. Here, we design a ternary heterojunction of Ti3C2/N, S-TiO2/g-C3N4 by thermal annealing and ultrasonic assisted impregnation method having a well-designed n-n heterojunction and noble metal free Schottky junction for adequate hydrogen evolution. The optimal content of 4 wt% Ti3C2 on N, S-TiO2/g-C3N4 (4-TC/NST/CN) exhibit the highest rate of hydrogen generation 495.06μ mol h-1 which is 3.1, 4.1 and 1.6 fold higher than the pristine N, S doped-TiO2, g-C3N4 and binary hybrid (N, S doped-TiO2/g-C3N4) respectively, with 7% apparent conversion efficiency (ACE). The increment in the activity is described to the robust photogenerated carrier separation and double charge transfer channels because of the formation of dual heterojunction (n-n heterojunction and Schottky junction). XRD and Raman results revealed the occupancy of Ti3C2 in the heterojunction due to the strong interaction between Ti3C2, with N, S doped-TiO2 and g-C3N4. The HRTEM analysis confirmed the formation of close interfacial junction between the Ti3C2, N, S doped-TiO2 and g-C3N4. Moreover, the higher photocurrent, low PL intensity and lower impedance arc suggested the lower charge carrier recombination rate in 4-TC/NST/CN heterojunction. This work represents a significant development to establish a sound foundation for future design of MXene-based ternary hybrid system towards significant charge carrier separation and transfer for H2 production activity.
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Babu P, Kim H, Park JY, Naik B. Trioctylphosphine Oxide (TOPO)-Assisted Facile Fabrication of Phosphorus-Incorporated Nanostructured Carbon Nitride Toward Photoelectrochemical Water Splitting with Enhanced Activity. Inorg Chem 2022; 61:1368-1376. [PMID: 34990141 DOI: 10.1021/acs.inorgchem.1c02863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Designing nanostructured arrays of two-dimensional surfaces and interfaces is a versatile approach to increasing their photoelectrochemical activity. Here, phosphorus (P)-incorporated nanostructured carbon nitride (h-PCN) with an enlarged surface area is fabricated by employing trioctylphosphine oxide (TOPO) as a dopant precursor for visible-light-driven photoelectrochemical water splitting to produce hydrogen. The structural, morphological, and electronic properties of the photocatalyst have been characterized through various physicochemical techniques. We show that the incorporation of P into the g-C3N4 framework enhances light absorption over broad regimes, charge separation, and migration, as well as the specific surface area, showing excellent photocurrent enhancement (5.4 folds) in the cathodic direction as compared to bulk g-C3N4. Moreover, the photocathode shows 3.3-fold enhancement in current at zero biased potential. Without using any cocatalyst, the photoelectrodes produced 27 μmol h-1 of H2 and 13 μmol h-1of O2 with 95% faradic efficiency. The excellent photoelectrochemical behavior toward water-splitting reactions by the photoelectrode is attributed to the synergistic effect of P incorporation and active sites emerging from the nanostructured architecture of the material. This work demonstrates the facile fabrication of nanostructured P-incorporated g-C3N4 toward water-splitting reactions to produce hydrogen without using a cocatalyst in a simple and cost-effective way.
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Affiliation(s)
- Pradeepta Babu
- Centre for Nanoscience and Nanotechnology, Siksha "O" Anusandhan, Bhubaneswar 751030, India
| | - Heeyoung Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea.,Center for Nanomterials and Chemical Reactions, Insitute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Jeong Young Park
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, South Korea.,Center for Nanomterials and Chemical Reactions, Insitute for Basic Science (IBS), Daejeon 34141, South Korea
| | - Brundabana Naik
- Department of Chemistry, Siksha "O" Anusandhan, Bhubaneswar 751030, India
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13
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Sahoo SS, Mansingh S, Babu P, Parida K. Black titania an emerging photocatalyst: review highlighting the synthesis techniques and photocatalytic activity for hydrogen generation. NANOSCALE ADVANCES 2021; 3:5487-5524. [PMID: 36133264 PMCID: PMC9419872 DOI: 10.1039/d1na00477h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 08/12/2021] [Indexed: 05/19/2023]
Abstract
The TiO2 semiconductor photocatalyst is in the limelight of sustainable energy research in recent years because of its beneficial properties. However, its wide band-gap and rapid exciton recombination rate makes it a lame horse, and reduces its photocatalytic efficiency. Recently, researchers have developed facile methods for lowering the band-gap, so that it captures a wide range of solar spectrum, but the efficiency is still way behind the target value. After the discovery of black titania (B-TiO2), the associated drawbacks of white TiO2 and its modified forms were addressed to a large extent because it not only absorbs photons in a broad spectral range (UV to IR region), but also modifies the structural and morphological features, along with the electronic properties of the material, significantly boosting the catalytic performance. Hence, B-TiO2 effectively converts solar energy into renewable chemical energy i.e. green fuel H2 that can ultimately satisfy the energy crisis and environmental pollution. However, the synthesis techniques involved are quite tedious and challenging. Hence, this review summarizes various preparation methods of B-TiO2 and the involved characterization techniques. It also discusses the different modification strategies adopted to improve the H2 evolution activity, and hopes that this review acts as a guiding tool for researchers working in this field.
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Affiliation(s)
- Suman Sekhar Sahoo
- Centre for Nanoscience and Nanotechnology, Siksha O Anusandhan (Deemed to be University) Bhubaneswar-751030 Odisha India
| | - Sriram Mansingh
- Centre for Nanoscience and Nanotechnology, Siksha O Anusandhan (Deemed to be University) Bhubaneswar-751030 Odisha India
| | - Pradeepta Babu
- Centre for Nanoscience and Nanotechnology, Siksha O Anusandhan (Deemed to be University) Bhubaneswar-751030 Odisha India
| | - Kulamani Parida
- Centre for Nanoscience and Nanotechnology, Siksha O Anusandhan (Deemed to be University) Bhubaneswar-751030 Odisha India
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14
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Construction of NiO and Ti3+ self-doped TNTs thin film as a high quantum yield p-n type heterojunction via a novel photoelectrodeposition-assisted anodization method. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113433] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Shao X, Xiao F, Zhao X, Hou Z, Yue F, Wang L, Wu R, Wang J, Su X, Yang C. In situ construction of sulfated TiO 2 nanoparticles with TiOSO 4 for enhanced photocatalytic hydrogen production. NANOSCALE 2021; 13:901-911. [PMID: 33367362 DOI: 10.1039/d0nr06436j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Photocatalytic hydrogen production from water is a promising method to obtain clean energy in the future. In this work, the sulfated TiO2 photocatalyst is successfully constructed in situ via a soft-templated method for photocatalytic water splitting to produce hydrogen. The content of sulfate species in TiO2 can be tuned by changing the amount of the surfactant. The photocatalyst with the appropriate content of sulfate ions exhibits an apparent quantum efficiency (AQE) of 3.9% at 365 nm and a high hydrogen production rate of 24.32 mmol h-1 g-1, which is 1.65 times that of commercial TiO2 (P25). The optimized photocatalyst has excellent photocatalytic activity for hydrogen evolution benefitting from the presence of sulfate ions on the surface of TiO2, large surface area and oxygen vacancies, which facilitates the rapid migration of photo-generated electrons to its surface and the improvement of the separation efficiency of photo-generated carriers. This work may inspire the rational design and the development of high-efficiency photocatalysts.
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Affiliation(s)
- Xueqing Shao
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Feng Xiao
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Xueying Zhao
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Zhiyan Hou
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Fan Yue
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Lu Wang
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Ronglan Wu
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Jide Wang
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
| | - Xintai Su
- School of Environment and Energy, The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters (Ministry of Education), South China University of Technology, Guangzhou, Guangdong 510006, China. and Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou, Guangdong 510006, China
| | - Chao Yang
- Ministry Key Laboratory of Oil and Gas Fine Chemicals, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
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16
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Behera A, Babu P, Parida K. Growth of macroporous TiO2 on B-doped g-C3N4 nanosheets: a Z-scheme photocatalyst for H2O2 production and phenol oxidation under visible light. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01327g] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
BCN/TiO2 heterostructured photocatalyst was demonstrated towards H2O2 production and phenol oxidation under visible light, based on Z-scheme and p–n heterojunction mechanism.
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Affiliation(s)
- Arjun Behera
- Centre for Nanoscience and Nanotechnology
- Siksha ‘O′ Anusandhan
- Bhubaneswar 751030
- India
| | - Pradeepta Babu
- Centre for Nanoscience and Nanotechnology
- Siksha ‘O′ Anusandhan
- Bhubaneswar 751030
- India
| | - Kulamani Parida
- Centre for Nanoscience and Nanotechnology
- Siksha ‘O′ Anusandhan
- Bhubaneswar 751030
- India
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17
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Vasilchenko D, Topchiyan P, Tsygankova A, Asanova T, Kolesov B, Bukhtiyarov A, Kurenkova A, Kozlova E. Photoinduced Deposition of Platinum from (Bu 4N) 2[Pt(NO 3) 6] for a Low Pt-Loading Pt/TiO 2 Hydrogen Photogeneration Catalyst. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48631-48641. [PMID: 33064000 DOI: 10.1021/acsami.0c14361] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
An efficient method for the deposition of ionic platinum species PtOx onto a TiO2 surface was developed on the basis of light-induced activation of the [Pt(NO3)6]2- anion. The deposited PtOx species with an effective Pt oxidation state between +4 and +2 have an oxygen-made environment and include single ion centers {PtOn} and polyatomic ensembles {PtnOm} connected to a TiO2 surface with Pt-O-Ti bonds. The resulting PtOx/TiO2 materials were tested as photocatalysts for the hydrogen evolution reaction (HER) from a water ethanol mixture and have shown uniquely high activity with the rate of H2 evolution achieving 11 mol h-1 per gram of Pt, which is the highest result for such materials reported to date. A combination of spectral methods shows that, under HER conditions, reduction of the supported PtOx species leads to the formation of well-dispersed nanoparticles of metallic platinum attached on the surface of TiO2 by Ti-O-Pt bonds. The high activity of the PtOx/TiO2 materials is believed to result from a combination of uniform distribution of small platinum nanoparticles over the titania surface and their close interaction with TiO2.
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Affiliation(s)
- Danila Vasilchenko
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russian Federation
| | - Polina Topchiyan
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russian Federation
- Novosibirsk State University, Novosibirsk 630090, Russian Federation
| | - Alphiya Tsygankova
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russian Federation
| | - Tatyana Asanova
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russian Federation
| | - Boris Kolesov
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russian Federation
| | - Andrey Bukhtiyarov
- Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russia
| | - Anna Kurenkova
- Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russia
| | - Ekaterina Kozlova
- Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Science, Novosibirsk 630090, Russia
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18
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Effect of the Modification of TiO2 with Thiourea on its Photocatalytic Activity in Doxycycline Degradation. THEOR EXP CHEM+ 2020. [DOI: 10.1007/s11237-020-09650-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Babu P, Naik B. Cu-Ag Bimetal Alloy Decorated SiO 2@TiO 2 Hybrid Photocatalyst for Enhanced H 2 Evolution and Phenol Oxidation under Visible Light. Inorg Chem 2020; 59:10824-10834. [PMID: 32692542 DOI: 10.1021/acs.inorgchem.0c01325] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
With a broader objective to replace visible light driven Pt-based photoelectrochemical/catalytic hydrogen evolution, a series of cost-effective bimetallic nanoalloys of Cu-Ag have been deposited on core-shell nanostructured SiO2@TiO2 through a facile reduction route. The physicochemical properties, i.e. crystal structure, morphology, chemical environment, and optical properties of Cu-Ag bimetal alloy decorated SiO2@TiO2 hybrid photocatalyst, have been thoroughly investigated through X-ray diffraction, high resolution transmission electron microscopy, field emission scanning electron microscopy, X-ray photoelectron spectroscopy, UV-vis diffuse reflectance spectroscopy, and photoluminescence spectroscopy, respectively. TEM study confirms the coating of an ultrathin layer of TiO2 shell on 100 nm sized SiO2 core, and about 4.5 nm of Ag-Cu nanoalloys are uniformly distributed on the core-shell nanostructure. The higher light absorption throughout the visible range and better separation of charge carrier by Ag-Cu (1:3) deposited SiO2@TiO2 hybrid compared to other counterparts is confirmed from UV-vis, diffuse reflectance spectroscopy, photoluminescence, and electrochemical impedance studies. Eightfold higher photocurrent enhancements, threefold enhanced photocatalytic hydrogen generation, and twofold higher phenol oxidation activities of Ag-Cu (1:3) deposited SiO2@TiO2 hybrid compared to those of the monometallic plasmonic catalyst may be attributed to the synergetic effect of enriched light harvesting and surface plasmon induced hot electron transfer from the nanoalloy to the TiO2 interface, resulting in efficient charge transfer.
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Affiliation(s)
- Pradeepta Babu
- Center for Nanoscience and Nanotechnology, Siksha 'O' Anusandhan, Bhubaneswar 751030, India
| | - Brundabana Naik
- Department of Chemistry, Siksha 'O' Anusandhan, Bhubaneswar 751030, India
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20
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Han K, Li W, Ren C, Li H, Liu X, Li X, Ma X, Liu H, Khan A. Dye-sensitized SrTiO3-based photocatalysts for highly efficient photocatalytic hydrogen evolution under visible light. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.07.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Mansingh S, Das KK, Behera A, Subudhi S, Sultana S, Parida K. Bandgap engineering via boron and sulphur doped carbon modified anatase TiO 2: a visible light stimulated photocatalyst for photo-fixation of N 2 and TCH degradation. NANOSCALE ADVANCES 2020; 2:2004-2017. [PMID: 36132535 PMCID: PMC9419573 DOI: 10.1039/d0na00183j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 03/26/2020] [Indexed: 06/12/2023]
Abstract
The present research reports the synthesis of two-dimensional (2D) sheet/flake-like nanostructures of crystalline carbon modified TiO2 (CT), B-TiO2 (B-CT), and S-TiO2 (S-CT) using a facile one-pot synthesis method. The crystallinity and phase purity (anatase) of the prepared nano-photocatalyst were characterised using X-ray diffraction, selected area electron diffraction (SAED) and high-resolution transmission electron microscopy (HRTEM) analysis. Furthermore, the morphological details and elemental content of the sample were studied via scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS), respectively. Additionally, the optoelectronic features of all of the prepared specimens were measured via UV-vis diffuse reflectance spectroscopy (DRS), photoluminescence (PL), impedance and Mott-Schottky studies. After successful characterisation, their photocatalytic performance was tested towards dinitrogen photo-fixation and tetracycline hydrochloride (TCH) degradation under visible light illumination. Moreover, the effective charge separation and greater availability of the active surface area led to the robust photocatalytic activity of the fabricated B-CT compared to the CT and S-CT samples, which correlates well with the PL, impedance and surface area analysis. B-CT displays the highest photocatalytic activity, i.e. 32.38 μmol L-1 (conversion efficiency = 0.076%) of ammonia production, and 95% tetracycline hydrochloride (10 ppm) degradation. Here, we have effectively designed a novel and productive pathway towards the enhancement of the photocatalytic performance of visible photon active TiO2-based materials for energy and environmental sustainability.
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Affiliation(s)
- Sriram Mansingh
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan Deemed to be University Bhubaneswar 751 030 Odisha India +91-674-2581637 +91-674-2379425
| | - Kundan Kumar Das
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan Deemed to be University Bhubaneswar 751 030 Odisha India +91-674-2581637 +91-674-2379425
| | - Arjun Behera
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan Deemed to be University Bhubaneswar 751 030 Odisha India +91-674-2581637 +91-674-2379425
| | - Satyabrata Subudhi
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan Deemed to be University Bhubaneswar 751 030 Odisha India +91-674-2581637 +91-674-2379425
| | - Sabiha Sultana
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan Deemed to be University Bhubaneswar 751 030 Odisha India +91-674-2581637 +91-674-2379425
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology, Siksha 'O' Anusandhan Deemed to be University Bhubaneswar 751 030 Odisha India +91-674-2581637 +91-674-2379425
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22
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Zhu L, Gu W, Chen J, Liu H, Zhang Y, Wu Q, Zhang Y, Fu Z, Lu Y. Improving the photocatalytic hydrogen production of SrTiO 3 by in situ loading ethylene glycol as a co-catalyst. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00807a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Ethylene glycol, as a cocatalyst, is supported on the surface of SrTiO3, which greatly promotes the photocatalytic reaction efficiency.
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Affiliation(s)
- Liuyang Zhu
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Wen Gu
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Jifang Chen
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Huan Liu
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Yingying Zhang
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Qingmei Wu
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Yuanxi Zhang
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Zhengping Fu
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
| | - Yalin Lu
- CAS Key Laboratory of Materials for Energy Conversion
- Department of Materials Science and Engineering
- University of Science and Technology of China
- Hefei 230026
- P. R. China
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23
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Zhang J, Liu M, Wang Y, Shi F. Au/MoS 2/Ti 3C 2 composite catalyst for efficient photocatalytic hydrogen evolution. CrystEngComm 2020. [DOI: 10.1039/d0ce00345j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The Au/MoS2/Ti3C2 composite catalyst has efficient photocatalytic hydrogen evolution performance.
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Affiliation(s)
- Juhui Zhang
- School of Material Science & Engineering
- Shandong University of Science and Technology
- Qingdao
- P.R. China
| | - Mengting Liu
- School of Material Science & Engineering
- Shandong University of Science and Technology
- Qingdao
- P.R. China
| | - Yuying Wang
- School of Material Science & Engineering
- Shandong University of Science and Technology
- Qingdao
- P.R. China
| | - Feng Shi
- School of Material Science & Engineering
- Shandong University of Science and Technology
- Qingdao
- P.R. China
- Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province
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24
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Mohanty S, Babu P, Parida K, Naik B. Surface-Plasmon-Resonance-Induced Photocatalysis by Core–Shell SiO2@Ag NCs@Ag3PO4 toward Water-Splitting and Phenol Oxidation Reactions. Inorg Chem 2019; 58:9643-9654. [PMID: 31339037 DOI: 10.1021/acs.inorgchem.9b00218] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Satyaranjan Mohanty
- Centre for Nanoscience and Nanotechnology, Siksha ‘O’ Anusandhan, Bhubaneswar 751030, India
| | - Pradeepta Babu
- Centre for Nanoscience and Nanotechnology, Siksha ‘O’ Anusandhan, Bhubaneswar 751030, India
| | - Kulamani Parida
- Centre for Nanoscience and Nanotechnology, Siksha ‘O’ Anusandhan, Bhubaneswar 751030, India
| | - Brundabana Naik
- Centre for Nanoscience and Nanotechnology, Siksha ‘O’ Anusandhan, Bhubaneswar 751030, India
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25
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Wang N, Lv H, Zhou Y, Zhu L, Hu Y, Majima T, Tang H. Complete Defluorination and Mineralization of Perfluorooctanoic Acid by a Mechanochemical Method Using Alumina and Persulfate. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:8302-8313. [PMID: 31149813 DOI: 10.1021/acs.est.9b00486] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Perfluorooctanoic acid (PFOA) is a persistent organic pollutant that has received concerns worldwide due to its extreme resistance to conventional degradation. A mechanochemical (MC) method was developed for complete degradation of PFOA by using alumina (Al2O3) and potassium persulfate (PS) as comilling agents. After ball milling for 2 h, the MC treatment using Al2O3 or PS caused conversion of PFOA to either 1-H-1-perfluoroheptene or dimers with a defluorination efficiency lower than 20%, but that using both Al2O3 and PS caused degradation of PFOA with a defluorination of 100% and a mineralization of 98%. This method also caused complete defluorination of other C3∼C6 homologues of PFOA. The complete defluorination of PFOA attributes to Al2O3 and PS led to the weakening of the C-F bond in PFOA and the generation of hydroxyl radical (•OH), respectively. During the MC degradation, Al2O3 strongly anchors PFOA through COO--Al coordination and in situ formed from Lewis-base interaction and PS through hydrogen bond. Meanwhile, mechanical effects induce the homolytic cleavage of PS to produce SO4•-, which reacts with OH group of Al2O3 to generate •OH. The degradation of PFOA is initiated by decarboxylation as a result of weakened C-COO- due to Al3+ coordination. The subsequent addition of •OH, elimination of HF, and reaction with water induce the stepwise removal of all carboxyl groups and F atoms as CO2 and F-, respectively. Thus, complete defluorination and mineralization are achieved.
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Affiliation(s)
- Nan Wang
- College of Chemistry and Chemical Engineering , Huazhong University of Science & Technology , Wuhan 430074 , P. R. China
| | - Hanqing Lv
- College of Chemistry and Chemical Engineering , Huazhong University of Science & Technology , Wuhan 430074 , P. R. China
| | - Yuqi Zhou
- College of Chemistry and Chemical Engineering , Huazhong University of Science & Technology , Wuhan 430074 , P. R. China
| | - Lihua Zhu
- College of Chemistry and Chemical Engineering , Huazhong University of Science & Technology , Wuhan 430074 , P. R. China
| | - Yue Hu
- College of Resourcesand Environmental , South-Central University for Nationalities , Wuhan 430074 , P. R. China
| | - Tetsuro Majima
- College of Chemistry and Chemical Engineering , Huazhong University of Science & Technology , Wuhan 430074 , P. R. China
| | - Heqing Tang
- College of Resourcesand Environmental , South-Central University for Nationalities , Wuhan 430074 , P. R. China
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26
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Shaban YA. Solar light-induced photodegradation of chrysene in seawater in the presence of carbon-modified n-TiO2 nanoparticles. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2018.01.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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27
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Recent Progress on Metal Sulfide Composite Nanomaterials for Photocatalytic Hydrogen Production. Catalysts 2019. [DOI: 10.3390/catal9050457] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Metal sulfide-based photocatalysts have gained much attention due to their outstanding photocatalytic properties. This review paper discusses recent developments on metal sulfide-based nanomaterials for H2 production, acting as either photocatalysts or cocatalysts, especially in the last decade. Recent progress on key experimental parameters, in-situ characterization methods, and the performance of the metal sulfide photocatalysts are systematically discussed, including the forms of heterogeneous composite photocatalysts, immobilized photocatalysts, and magnetically separable photocatalysts. Some methods have been studied to solve the problem of rapid recombination of photoinduced carriers. The electronic density of photocatalysts can be investigated by in-situ C K-edge near edge X-ray absorption fine structure (NEXAFS) spectra to study the mechanism of the photocatalytic process. The effects of crystal properties, nanostructure, cocatalyst, sacrificial agent, electrically conductive materials, doping, calcination, crystal size, and pH on the performance of composite photocatalysts are presented. Moreover, the facet effect and light trapping (or light harvesting) effect, which can improve the photocatalytic activity, are also discussed.
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28
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Wang T, Jiang B, Yu Q, Kou X, Sun P, Liu F, Lu H, Yan X, Lu G. Realizing the Control of Electronic Energy Level Structure and Gas-Sensing Selectivity over Heteroatom-Doped In 2O 3 Spheres with an Inverse Opal Microstructure. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9600-9611. [PMID: 30724073 DOI: 10.1021/acsami.8b21543] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Understanding the effect of substitutional doping on gas-sensing performances is essential for designing high-activity sensing nanomaterials. Herein, formaldehyde sensors based on gallium-doped In2O3 inverse opal (IO-(Ga xIn1- x)2O3) microspheres were purposefully prepared by a simple ultrasonic spray pyrolysis method combined with self-assembled sulfonated polystyrene sphere templates. The well-aligned inverse opal structure, with three different-sized pores, plays the dual role of accelerating the diffusion of gas molecules and providing more active sites. The Ga substitutional doping can alter the electronic energy level structure of (Ga xIn1- x)2O3, leading to the elevation of the Fermi level and the modulation of the band gap close to a suitable value (3.90 eV), hence, effectively optimizing the oxidative catalytic activity for preferential CH2O oxidation and increasing the amount of adsorbed oxygen. More importantly, the gas selectivity could be controlled by varying the energy level of adsorbed oxygen. Accordingly, the IO-(Ga0.2In0.8)2O3 microsphere sensor showed a high response toward formaldehyde with fast response and recovery speeds, and ultralow detection limit (50 ppb). Our findings finally offer implications for designing Fermi level-tailorable semiconductor nanomaterials for the control of selectivity and monitoring indoor air pollutants.
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Affiliation(s)
- Tianshuang Wang
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering , Jilin University , 2699 Qianjin Street , Changchun 130012 , People's Republic of China
| | - Bin Jiang
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering , Jilin University , 2699 Qianjin Street , Changchun 130012 , People's Republic of China
| | - Qi Yu
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering , Jilin University , 2699 Qianjin Street , Changchun 130012 , People's Republic of China
| | - Xueying Kou
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering , Jilin University , 2699 Qianjin Street , Changchun 130012 , People's Republic of China
| | - Peng Sun
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering , Jilin University , 2699 Qianjin Street , Changchun 130012 , People's Republic of China
| | - Fangmeng Liu
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering , Jilin University , 2699 Qianjin Street , Changchun 130012 , People's Republic of China
| | - Huiying Lu
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering , Jilin University , 2699 Qianjin Street , Changchun 130012 , People's Republic of China
| | - Xu Yan
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering , Jilin University , 2699 Qianjin Street , Changchun 130012 , People's Republic of China
| | - Geyu Lu
- State Key Laboratory on Integrated Optoelectronics, Key Laboratory of Gas Sensors, Jilin Province, College of Electronic Science and Engineering , Jilin University , 2699 Qianjin Street , Changchun 130012 , People's Republic of China
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29
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Wang J, Liu B, Nakata K. Effects of crystallinity, {001}/{101} ratio, and Au decoration on the photocatalytic activity of anatase TiO2 crystals. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(18)63174-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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Wei F, Wang H, Ran W, Liu T, Liu X. Preparation of S–N co-doped CoFe2O4@rGO@TiO2 nanoparticles and their superior UV-Vis light photocatalytic activities. RSC Adv 2019; 9:6152-6162. [PMID: 35517270 PMCID: PMC9060945 DOI: 10.1039/c8ra10238d] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 01/22/2019] [Indexed: 11/21/2022] Open
Abstract
A S–N co-doped CoFe2O4@rGO@TiO2 (CFGT-S/N) nanocomposite was successfully synthesized via a facile vapor-thermal method. XRD, XPS, FT-IR and FETEM results confirmed that N and S were co-doped into the lattice of TiO2. Photocatalytic tests indicated that CFGT-S/N exhibited excellent UV-Vis photocatalytic activity for decompositions of different organic dyes, including methyl orange (MO), rhodamine B (RhB) and methylene blue (MB). Particularly, the photocatalytic degradation rate of MO was about 33% higher than that when using P25 under visible light irradiation. The higher UV-Vis light photocatalytic activity of CFGT-S/N can be attributed to the synergetic effects of the strong absorption of visible light, the narrow band gap, improved separation of photo-generated electron/hole pairs, and the enhancement of the enrichment of pollutant dye molecules by S, N co-doping, CoFe2O4 and rGO. Moreover, this photocatalyst was superparamagnetic, which enables it to be easily recovered by an external magnetic field, and maintained stable photocatalytic efficiency over five cycles. Hence, CFGT-S/N with its highly efficient, recoverable and stable photocatalytic properties shows great potential for environmental treatment. A magnetic recoverable S–N co-doped CoFe2O4@rGO@TiO2 (CFGT-S/N) nanocomposite was synthesized via a facile vapor-thermal method. CFGT-S/N is an excellent UV-Vis photocatalyst because of the synergetic effects of S, N co-doping, the introduction of CoFe2O4 and rGO.![]()
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Affiliation(s)
- Fengyu Wei
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Hui Wang
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Wei Ran
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Tao Liu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
| | - Xueting Liu
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Hefei 230009
- P. R. China
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Yuan W, Cheng L, An Y, Lv S, Wu H, Fan X, Zhang Y, Guo X, Tang J. Laminated Hybrid Junction of Sulfur-Doped TiO 2 and a Carbon Substrate Derived from Ti 3C 2 MXenes: Toward Highly Visible Light-Driven Photocatalytic Hydrogen Evolution. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700870. [PMID: 29938169 PMCID: PMC6010755 DOI: 10.1002/advs.201700870] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/03/2018] [Indexed: 05/20/2023]
Abstract
TiO2 is an ideal photocatalyst candidate except for its large bandgap and fast charge recombination. A novel laminated junction composed of defect-controlled and sulfur-doped TiO2 with carbon substrate (LDC-S-TiO2/C) is synthesized using the 2D transition metal carbides (MXenes) as a template to enhance light absorption and improve charge separation. The prepared LDC-S-TiO2/C catalyst delivers a high photocatalytic H2 evolution rate of 333 µmol g-1 h-1 with a high apparent quantum yield of 7.36% at 400 nm and it is also active even at 600 nm, resulting into a 48 time activity compared with L-TiO2/C under visible light irradiation. Further theoretical modeling calculation indicates that such novel approach also reduces activation energy of hydrogen production apart from broadening the absorption wavelength, facilitating charge separation, and creating a large surface area substrate. This synergic effect can also be applied to other photocatalysts' modification. The study provides a novel approach for synthesis defective metal oxides based hybrids and broaden the applications of MXene family.
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Affiliation(s)
- Wenyu Yuan
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical University710072Xi'anChina
- State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical University710072Xi'anChina
| | - Laifei Cheng
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical University710072Xi'anChina
- State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical University710072Xi'anChina
| | - Yurong An
- State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical University710072Xi'anChina
| | - Shilin Lv
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical University710072Xi'anChina
- State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical University710072Xi'anChina
| | - Heng Wu
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical University710072Xi'anChina
- State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical University710072Xi'anChina
| | - Xiaoli Fan
- State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical University710072Xi'anChina
| | - Yani Zhang
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical University710072Xi'anChina
- State Key Laboratory of Solidification ProcessingNorthwestern Polytechnical University710072Xi'anChina
| | - Xiaohui Guo
- Key Lab of Synthetic and Natural Functional Molecule Chemistry of Ministry of EducationCollege of Chemistry and Materials ScienceNorthwest University710069Xi'anChina
| | - Junwang Tang
- Department of Chemical EngineeringUniversity College LondonTorrington PlaceLondonWC1E 7JEUK
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32
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Acharya R, Naik B, Parida K. Cr(VI) remediation from aqueous environment through modified-TiO 2-mediated photocatalytic reduction. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:1448-1470. [PMID: 29977679 PMCID: PMC6009310 DOI: 10.3762/bjnano.9.137] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 04/19/2018] [Indexed: 05/21/2023]
Abstract
Cr(VI) exhibits cytotoxic, mutagenic and carcinogenic properties; hence, effluents containing Cr(VI) from various industrial processes pose threat to aquatic life and downstream users. Various treatment techniques, such as chemical reduction, ion exchange, bacterial degradation, adsorption and photocatalysis, have been exploited for remediation of Cr(VI) from wastewater. Among these, photocatalysis has recently gained considerable attention. The applications of photocatalysis, such as water splitting, CO2 reduction, pollutant degradation, organic transformation reactions, N2 fixation, etc., towards solving the energy crisis and environmental issues are briefly discussed in the Introduction of this review. The advantages of TiO2 as a photocatalyst and the importance of its modification for photocatalytic reduction of Cr(VI) has also been addressed. In this review, the photocatalytic activity of TiO2 after modification with carbon-based advanced materials, metal oxides, metal sulfides and noble metals towards reduction of Cr(VI) was evaluated and compared with that of bare TiO2. The photoactivity of dye-sensitized TiO2 for reduction of Cr(VI) was also discussed. The mechanism for enhanced photocatalytic activity was highlighted and attributed to the resultant properties, namely, effective separation of photoinduced charge carriers, extension of the light absorption range and intensity, increase of the surface active sites, and higher photostability. Advantages and limitations for photoreduction of Cr(VI) over modified TiO2 are depicted in the Conclusion. The various challenges that restrict the technology from practical applications in remediation of Cr(VI) from wastewater were addressed in the Conclusion section as well. The future perspectives of the field presented in this review are focused on the development of whole-solar-spectrum responsive, TiO2-coupled photocatalysts which provide efficient photocatalytic reduction of Cr(VI) along with their good recoverability and recyclability.
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Affiliation(s)
- Rashmi Acharya
- Centre for Nano Science and Nano Technology, Siksha ‘O’ Anusandhan University, Bhubaneswar 751030, India
| | - Brundabana Naik
- Centre for Nano Science and Nano Technology, Siksha ‘O’ Anusandhan University, Bhubaneswar 751030, India
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology, Siksha ‘O’ Anusandhan University, Bhubaneswar 751030, India
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33
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Comparing the photocatalytic activity of N-doped and S-doped titanium dioxide nanoparticles for water splitting under sunlight radiation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1329-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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34
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Patnaik S, Martha S, Madras G, Parida K. The effect of sulfate pre-treatment to improve the deposition of Au-nanoparticles in a gold-modified sulfated g-C 3N 4 plasmonic photocatalyst towards visible light induced water reduction reaction. Phys Chem Chem Phys 2018; 18:28502-28514. [PMID: 27722288 DOI: 10.1039/c6cp04262g] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In continuation of our earlier work on Au-g-C3N4 and to improve its activity further, Au incorporated sulfated carbon nitride (g-C3N4) has been designed by using a simple impregnation cum borohydrate reduction method for the visible light induced water reduction reaction for hydrogen generation. The photocatalysts were characterized using various instrumental methods such as PXRD, UV-Vis DRS, SEM, HR-TEM, XPS, PL and TRPL spectral analysis. Functionalisation by the -HSO3 group and incorporation of AuNPs in the g-C3N4 skeleton lead to the extension of its pi-conjugated system, modification of its semiconductor properties, such as band structure engineering with a tunable bandgap, red-shift of the optical absorption band and promotion of charge migration and separation. The sulfate pre-treated g-C3N4 samples are supposed to have a defected surface due to oxygen vacancies, which increases the adsorption of AuNPs onto the vacant oxygen sites. Thus the AuNPs get adsorbed on the reduced surfaces, increasing the extent and effectiveness of the electronic communication between gold and the g-C3N4 interface. The improved photocatalytic activity could be attributed to the surface plasmon resonance (SPR) effect of AuNPs, which synergistically facilitates the photocatalysis process. The photocatalytic activity of Au-sulfated g-C3N4 for photocatalytic splitting of water to produce H2 was increased 1.5 times compared to that of Au-g-C3N4, 2.5 times compared to that of sulphated-g-C3N4 and 35 times compared to that of single-phase g-C3N4.
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Affiliation(s)
- Sulagna Patnaik
- Centre for Nano Science and Nano Technology, SOA University, Bhubaneswar-751030, India.
| | - Satyabadi Martha
- Centre for Nano Science and Nano Technology, SOA University, Bhubaneswar-751030, India.
| | - Giridhar Madras
- Department of Chemical Engineering, Indian Institute of Science, Bangalore, India
| | - Kulamani Parida
- Centre for Nano Science and Nano Technology, SOA University, Bhubaneswar-751030, India.
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35
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Sornalingam K, McDonagh A, Zhou JL, Johir MAH, Ahmed MB. Photocatalysis of estrone in water and wastewater: Comparison between Au-TiO 2 nanocomposite and TiO 2, and degradation by-products. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 610-611:521-530. [PMID: 28822337 DOI: 10.1016/j.scitotenv.2017.08.097] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 08/10/2017] [Accepted: 08/10/2017] [Indexed: 05/24/2023]
Abstract
Gold-modified TiO2 (Au-TiO2) photocatalysts were utilised for the degradation of estrone (E1), a major endocrine disrupting chemical in water and wastewater. Au-TiO2 catalysts were synthesised by a deposition-precipitation method with gold loadings of 0-8% (wt%). The Au-TiO2 nanocomposite exhibited superior activity compared to P25 TiO2 under UVA (λ=365nm), cool white (λ>420nm) and green (λ=523nm) light emitting diodes (LEDs), for treating 1mgl-1 of E1. The 4wt% Au loading was found to produce the best photocatalytic activity with a rate constant of 2.44±0.36h-1, compared to 0.06±0.01h-1 for P25 TiO2, under visible light. In total 4 by-products were identified, one from negative ionization mode (m/z=269) and three from positive ionization mode (m/z=287) during photocatalysis, which were also degraded with time by Au-TiO2. For different water matrices, the photodegradation rate of E1 decreased in the order: ultrapure water>synthetic wastewater≈wastewater effluent from membrane bio-reactor. Overall, 4wt% Au-TiO2 demonstrated superior performance compared to P25 TiO2 in water and wastewater.
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Affiliation(s)
- Kireesan Sornalingam
- School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia
| | - Andrew McDonagh
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, NSW 2007, Australia
| | - John L Zhou
- School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia.
| | - Md Abu Hasan Johir
- School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia
| | - Mohammad Boshir Ahmed
- School of Civil and Environmental Engineering, University of Technology Sydney, NSW 2007, Australia
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Singaram B, Varadharajan K, Jeyaram J, Rajendran R, Jayavel V. Preparation of cerium and sulfur codoped TiO2 nanoparticles based photocatalytic activity with enhanced visible light. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.09.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Gellé A, Moores A. Water splitting catalyzed by titanium dioxide decorated with plasmonic nanoparticles. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2017-0711] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractThe development of active, cheap, efficient and visible-light-driven water splitting catalysts is currently the center of intense research efforts. Amongst the most promising avenues, the design of titania and plasmonic nanoparticle hybrids is particularly appealing. Titania has been known for long to be an active photocatalyst, able to perform water splitting under light irradiation. However, this activity is limited to the ultraviolet spectrum and suffers from too rapid charge carrier recombination. The addition of plasmonic nanostructures enables to push absorption properties to the visible region and prevent unwanted charge recombination. In this review, we explain the principles behind the activity of such nanohybrids towards visible light water splitting and detail the recent research developments relying on plasmonic metals, namely Au, Ag and Cu.
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Affiliation(s)
- Alexandra Gellé
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
| | - Audrey Moores
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC, H3A 0B8, Canada
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38
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Miyagawa M, Aoki T, Seki R, Shibusawa A, Tanaka H. Synthesis of Truffle-shaped Oxide-free Cu Nanoparticles under Atmospheric Conditions with the Aid of Photocatalytic TiO2. CHEM LETT 2017. [DOI: 10.1246/cl.170564] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Masaya Miyagawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551
| | - Takuya Aoki
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551
| | - Ryoya Seki
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551
| | - Akane Shibusawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551
| | - Hideki Tanaka
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551
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39
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Swain G, Sultana S, Naik B, Parida K. Coupling of Crumpled-Type Novel MoS 2 with CeO 2 Nanoparticles: A Noble-Metal-Free p-n Heterojunction Composite for Visible Light Photocatalytic H 2 Production. ACS OMEGA 2017; 2:3745-3753. [PMID: 31457689 PMCID: PMC6641118 DOI: 10.1021/acsomega.7b00492] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 06/27/2017] [Indexed: 05/18/2023]
Abstract
In terms of solar hydrogen production, semiconductor-based photocatalysts via p-n heterojunctions play a key role in enhancing future hydrogen reservoir. The present work focuses on the successful synthesis and characterization of a novel p-MoS2/n-CeO2 heterojunction photocatalyst for excellent performance toward solar hydrogen production. The synthesis involves a simple in situ hydrothermal process by varying the wt % of MoS2. The various characterization techniques support the uniform distribution of CeO2 on the surface of crumpled MoS2 nanosheets, and the formation of p-n heterojunction is further confirmed by transmission electron microscopy and Mott-Schottky analysis. Throughout the experiment, it is demonstrated that 2 wt % MoS2 in the MoS2/CeO2 heterojunction photocatalyst exhibits the highest rate of hydrogen evolution with a photocurrent density of 721 μA cm-2. The enhanced photocatalytic activity is ascribed to the formation of the p-n heterojunction that provides an internal electric field to facilitate the photogenerated charge separation and transfer.
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40
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Mansingh S, Padhi DK, Parida KM. Enhanced visible light harnessing and oxygen vacancy promoted N, S co-doped CeO2 nanoparticle: a challenging photocatalyst for Cr(vi) reduction. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00499k] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enhanced photocatalytic activity of N-, S-doped ceria nanoparticles towards Cr(vi) reduction under visible light irradiation.
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Affiliation(s)
- S. Mansingh
- Centre for Nano Science and Nano Technology SOA University
- Bhubaneswar—751 030
- India
| | - D. K. Padhi
- Environment & Sustainability Department
- CSIR-Institute of Minerals and Materials Technology
- Bhubaneswar – 751 013
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - K. M. Parida
- Centre for Nano Science and Nano Technology SOA University
- Bhubaneswar—751 030
- India
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41
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Manivannan S, Kim K. Electrochemical Biosensor Utilizing Supramolecular Association of Enzyme on Sol−gel Matrix Embedded Gold Nanoparticles Supported Reduced Graphene Oxide−cyclodextrin Nanocomposite. ELECTROANAL 2016. [DOI: 10.1002/elan.201501104] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Shanmugam Manivannan
- Electrochemistry Laboratory for Sensors & Energy (ELSE); Department of Chemistry; Incheon National University; Incheon 406-772 Republic of Korea
| | - Kyuwon Kim
- Electrochemistry Laboratory for Sensors & Energy (ELSE); Department of Chemistry; Incheon National University; Incheon 406-772 Republic of Korea
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42
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Rao YN, Banerjee D, Datta A, Das SK, Saha A. Low temperature synthesis of Ag@anatase TiO2 nanocomposites through controlled hydrolysis and improved degradation of toxic malachite green under both ultra-violet and visible light. RSC Adv 2016. [DOI: 10.1039/c6ra05579f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synthesized nanocomposite materials have shown remarkable catalytic degradation efficiency even at low concentrations towards toxic dye molecules under visible light.
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Affiliation(s)
- Yeluri Narayana Rao
- UGC-DAE Consortium for Scientific Research
- Kolkata Centre
- Kolkata 700 098
- India
| | - Debashis Banerjee
- Radiochemistry Division
- Variable Energy Cyclotron Centre
- Kolkata 700 064
- India
| | - Aparna Datta
- UGC-DAE Consortium for Scientific Research
- Kolkata Centre
- Kolkata 700 098
- India
| | - Satyendra K. Das
- Radiochemistry Division
- Variable Energy Cyclotron Centre
- Kolkata 700 064
- India
| | - Abhijit Saha
- UGC-DAE Consortium for Scientific Research
- Kolkata Centre
- Kolkata 700 098
- India
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43
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Ueno K, Oshikiri T, Misawa H. Plasmon-Induced Water Splitting Using Metallic-Nanoparticle-Loaded Photocatalysts and Photoelectrodes. Chemphyschem 2015; 17:199-215. [DOI: 10.1002/cphc.201500761] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Kosei Ueno
- Research Institute for Electronic Science; Hokkaido University; N21, W10, Kita-ku 001-0021 Sapporo Japan
| | - Tomoya Oshikiri
- Research Institute for Electronic Science; Hokkaido University; N21, W10, Kita-ku 001-0021 Sapporo Japan
| | - Hiroaki Misawa
- Research Institute for Electronic Science; Hokkaido University; N21, W10, Kita-ku 001-0021 Sapporo Japan
- Department of Applied Chemistry & Institute of Molecular Science; National Chiao Tung University; 1001 Ta Hsueh R. Hsinchu 30010 Taiwan
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44
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Boosting Photovoltaic Performance of Dye-Sensitized Solar Cells Using Silver Nanoparticle-Decorated N,S-Co-Doped-TiO2 Photoanode. Sci Rep 2015; 5:11922. [PMID: 26146362 PMCID: PMC4491728 DOI: 10.1038/srep11922] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 04/29/2015] [Indexed: 01/25/2023] Open
Abstract
A silver nanoparticle-decorated N,S-co-doped TiO2 nanocomposite was successfully prepared and used as an efficient photoanode in high-performance dye-sensitized solar cells (DSSCs) with N719 dye. The DSSCs assembled with the N,S-TiO2@Ag-modified photoanode demonstrated an enhanced solar-to-electrical energy conversion efficiency of 8.22%, which was better than that of a DSSC photoanode composed of unmodified TiO2 (2.57%) under full sunlight illumination (100 mWcm−2, AM 1.5 G). This enhanced efficiency was mainly attributed to the reduced band gap energy, improved interfacial charge transfer, and retarded charge recombination process. The influence of the Ag content on the overall efficiency was also investigated, and the optimum Ag content with N,S-TiO2 was found to be 20 wt%. Because of the enhanced solar energy conversion efficiency of the N,S-TiO2@Ag nanocomposite, it should be considered as a potential photoanode for high-performance DSSCs.
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45
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Influence of Nafion loading on hydrogen production in a membrane photocatalytic system. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2014.09.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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47
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Pany S, Parida KM. A facile in situ approach to fabricate N,S-TiO2/g-C3N4 nanocomposite with excellent activity for visible light induced water splitting for hydrogen evolution. Phys Chem Chem Phys 2015; 17:8070-7. [DOI: 10.1039/c4cp05582a] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The efficient charge separation, small crystallite size and enhanced specific surface area in N,S-TiO2/g-C3N4 nanocomposites make the system pivotal and unique for hydrogen evolution.
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Affiliation(s)
- Soumyashree Pany
- Academy of Scientific and Innovative Research
- New Delhi
- India
- Bioresources Engineering Department
- CSIR-Institute of Minerals and Materials Technology
| | - K. M. Parida
- Centre for Nano Science and Nano Technology
- ITER
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751030
- India
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48
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Martha S, Chandra Sahoo P, Parida KM. An overview on visible light responsive metal oxide based photocatalysts for hydrogen energy production. RSC Adv 2015. [DOI: 10.1039/c5ra11682a] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The present review summarizes the recent development and challenges in visible light responsive metal oxide based photocatalysts for water splitting.
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Affiliation(s)
- Satyabadi Martha
- Centre for Nano Science and Nano Technology
- Institute of Technical Education and Research
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751030
- India
| | - Prakash Chandra Sahoo
- Centre for Nano Science and Nano Technology
- Institute of Technical Education and Research
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751030
- India
| | - K. M. Parida
- Centre for Nano Science and Nano Technology
- Institute of Technical Education and Research
- Siksha ‘O’ Anusandhan University
- Bhubaneswar-751030
- India
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49
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Wang C, Astruc D. Nanogold plasmonic photocatalysis for organic synthesis and clean energy conversion. Chem Soc Rev 2014; 43:7188-216. [PMID: 25017125 DOI: 10.1039/c4cs00145a] [Citation(s) in RCA: 278] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review provides the basic concepts, an overall survey and the state-of-the art of plasmon-based nanogold photocatalysis using visible light including fundamental understanding and major applications to organic reactions and clean energy-conversion systems. First, the basic concepts of localized surface plasmon resonance (LSPR) are recalled, then the major preparation methods of AuNP-based plasmonic photocatalysts are reviewed. The major part of the review is dedicated to the latest progress in the application of nanogold plasmonic photocatalysis to organic transformations and energy conversions, and the proposed mechanisms are discussed. In conclusion, new challenges and perspectives are proposed and analyzed.
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Affiliation(s)
- Changlong Wang
- ISM, Univ. Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France.
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50
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Seisenbaeva GA, Daniel G, Kessler VG, Nedelec JM. General facile approach to transition-metal oxides with highly uniform mesoporosity and their application as adsorbents for heavy-metal-ion sequestration. Chemistry 2014; 20:10732-6. [PMID: 25042144 DOI: 10.1002/chem.201402691] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Indexed: 11/07/2022]
Abstract
Mesoporous powders of transition-metal oxides, TiO2, ZrO2, HfO2, Nb2O5, and Ta2O5, pure from organic impurities were produced by a rapid single-step thermohydrolytic approach. The obtained materials display an impressively large active surface area and sharp pore-size distribution, being composed of partially coalesced uniform nanoparticles with crystalline cores and amorphous shells. They reveal extremely high adsorption capacity in removal of Cr(VI) anions from solutions (25.8 for TiO2, 73.0 for ZrO2, and 74.7 mg g(-1) for Nb2O5 in relation to the Cr2O7(2-) anion), making them very attractive as adsorbents in water remediation applications. The difference in adsorption capacities for the studied oxides may be explained by variation in surface hydration and surface-charge distribution.
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Affiliation(s)
- Gulaim A Seisenbaeva
- Department of Chemistry and Biotechnology, BioCenter, Swedish University of Agricultural Sciences, Box 7015, 75007 Uppsala (Sweden).
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