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Das A, Liu D, Wary RR, Vasenko AS, Prezhdo OV, Nair RG. Mn-Modified ZnO Nanoflakes for Optimal Photoelectrochemical Performance Under Visible Light: Experimental Design and Theoretical Rationalization. J Phys Chem Lett 2023; 14:9604-9611. [PMID: 37862673 PMCID: PMC10626631 DOI: 10.1021/acs.jpclett.3c02730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/12/2023] [Accepted: 10/18/2023] [Indexed: 10/22/2023]
Abstract
Doping of zinc oxide (ZnO) with manganese (Mn) tunes midbandgap states of ZnO to enhance its optical properties and makes it into an efficient photoactive material for photoelectrochemical water splitting, waste removal from water, and other applications. We demonstrate that ZnO modified with 1 at. % Mn exhibits the best performance, as rationalized by experimental, structural, and optical characterization and theoretical analysis. ZnO doped with the optimal Mn content possesses improved light absorption in the visible region and minimizes charge carrier recombination. The doping is substitutional and creates midgap states near the valence band. Mn atoms break localized charge traps at oxygen vacancy sites and eliminate photoluminescence peaks associated with oxygen vacancies. The optimal performance of Mn-modified ZnO is demonstrated with the photodegradation of Congo red and photoelectrochemical water splitting.
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Affiliation(s)
- Abinash Das
- HSE
University, 101000 Moscow, Russia
- PSG
Institute of Advanced Studies, Coimbatore, Tamil Nadu 641004, India
| | | | - Riu Riu Wary
- Solar
Energy Materials Research & Testing Laboratory (SMaRT lab), Department
of Physics, National Institute of Technology
Silchar, Silchar, Assam 788010, India
| | - Andrey S. Vasenko
- HSE
University, 101000 Moscow, Russia
- Donostia
International Physics Center (DIPC), 20018 San Sebastián-Donostia, Euskadi, Spain
| | - Oleg V. Prezhdo
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
- Department
of Physics & Astronomy, University of
Southern California, Los Angeles, California 90089, United States
| | - Ranjith G. Nair
- Solar
Energy Materials Research & Testing Laboratory (SMaRT lab), Department
of Physics, National Institute of Technology
Silchar, Silchar, Assam 788010, India
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2
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Fu B, Mao X, Park Y, Zhao Z, Yan T, Jung W, Francis DH, Li W, Pian B, Salimijazi F, Suri M, Hanrath T, Barstow B, Chen P. Single-cell multimodal imaging uncovers energy conversion pathways in biohybrids. Nat Chem 2023; 15:1400-1407. [PMID: 37500951 DOI: 10.1038/s41557-023-01285-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 06/28/2023] [Indexed: 07/29/2023]
Abstract
Microbe-semiconductor biohybrids, which integrate microbial enzymatic synthesis with the light-harvesting capabilities of inorganic semiconductors, have emerged as promising solar-to-chemical conversion systems. Improving the electron transport at the nano-bio interface and inside cells is important for boosting conversion efficiencies, yet the underlying mechanism is challenging to study by bulk measurements owing to the heterogeneities of both constituents. Here we develop a generalizable, quantitative multimodal microscopy platform that combines multi-channel optical imaging and photocurrent mapping to probe such biohybrids down to single- to sub-cell/particle levels. We uncover and differentiate the critical roles of different hydrogenases in the lithoautotrophic bacterium Ralstonia eutropha for bioplastic formation, discover this bacterium's surprisingly large nanoampere-level electron-uptake capability, and dissect the cross-membrane electron-transport pathways. This imaging platform, and the associated analytical framework, can uncover electron-transport mechanisms in various types of biohybrid, and potentially offers a means to use and engineer R. eutropha for efficient chemical production coupled with photocatalytic materials.
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Affiliation(s)
- Bing Fu
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China
| | - Xianwen Mao
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
- Department of Materials Science and Engineering, Institute of Functional Intelligent Materials, and Centre for Advanced 2D Materials, National University of Singapore, Singapore, Singapore
| | - Youngchan Park
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
| | - Zhiheng Zhao
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
| | - Tianlei Yan
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
| | - Won Jung
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Danielle H Francis
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
- Friends School of Baltimore, Baltimore, MD, USA
| | - Wenjie Li
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
| | - Brooke Pian
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
| | - Farshid Salimijazi
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
| | - Mokshin Suri
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA
| | - Tobias Hanrath
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, USA
| | - Buz Barstow
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA
| | - Peng Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA.
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3
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Gouveia AF, Lemos SCS, Leite ER, Longo E, Andrés J. Back to the Basics: Probing the Role of Surfaces in the Experimentally Observed Morphological Evolution of ZnO. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:978. [PMID: 36985873 PMCID: PMC10057894 DOI: 10.3390/nano13060978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 06/18/2023]
Abstract
Although the physics and chemistry of materials are driven by exposed surfaces in the morphology, they are fleeting, making them inherently challenging to study experimentally. The rational design of their morphology and delivery in a synthesis process remains complex because of the numerous kinetic parameters that involve the effective shocks of atoms or clusters, which end up leading to the formation of different morphologies. Herein, we combined functional density theory calculations of the surface energies of ZnO and the Wulff construction to develop a simple computational model capable of predicting its available morphologies in an attempt to guide the search for images obtained by field-emission scanning electron microscopy (FE-SEM). The figures in this morphology map agree with the experimental FE-SEM images. The mechanism of this computational model is as follows: when the model is used, a reaction pathway is designed to find a given morphology and the ideal step height in the whole morphology map in the practical experiment. This concept article provides a practical tool to understand, at the atomic level, the routes for the morphological evolution observed in experiments as well as their correlation with changes in the properties of materials based solely on theoretical calculations. The findings presented herein not only explain the occurrence of changes during the synthesis (with targeted reaction characteristics that underpin an essential structure-function relationship) but also offer deep insights into how to enhance the efficiency of other metal-oxide-based materials via matching.
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Affiliation(s)
- Amanda F. Gouveia
- Department of Analytical and Physical Chemistry, Jaume I University (UJI), 12071 Castelló, Spain
- Brazilian Nanotechnology National Laboratory (LNNano), CNPEM, Campinas 13083-970, SP, Brazil
| | - Samantha C. S. Lemos
- Department of Analytical and Physical Chemistry, Jaume I University (UJI), 12071 Castelló, Spain
| | - Edson R. Leite
- Brazilian Nanotechnology National Laboratory (LNNano), CNPEM, Campinas 13083-970, SP, Brazil
| | - Elson Longo
- Center for the Development of Functional Materials (CDMF), Federal University of São Carlos, São Carlos 13565-905, SP, Brazil
| | - Juan Andrés
- Department of Analytical and Physical Chemistry, Jaume I University (UJI), 12071 Castelló, Spain
- Brazilian Nanotechnology National Laboratory (LNNano), CNPEM, Campinas 13083-970, SP, Brazil
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4
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An Evaluation of the Biocatalyst for the Synthesis and Application of Zinc Oxide Nanoparticles for Water Remediation—A Review. Catalysts 2022. [DOI: 10.3390/catal12111442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Global water scarcity is threatening the lives of humans, and it is exacerbated by the contamination of water, which occurs because of increased industrialization and soaring population density. The available conventional physical and chemical water treatment techniques are hazardous to living organisms and are not environmentally friendly, as toxic chemical elements are used during these processes. Nanotechnology has presented a possible way in which to solve these issues by using unique materials with desirable properties. Zinc oxide nanoparticles (ZnO NPs) can be used effectively and efficiently for water treatment, along with other nanotechnologies. Owing to rising concerns regarding the environmental unfriendliness and toxicity of nanomaterials, ZnO NPs have recently been synthesized through biologically available and replenishable sources using a green chemistry or green synthesis protocol. The green-synthesized ZnO NPs are less toxic, more eco-friendly, and more biocompatible than other chemically and physically synthesized materials. In this article, the biogenic synthesis and characterization techniques of ZnO NPs using plants, bacteria, fungi, algae, and biological derivatives are reviewed and discussed. The applications of the biologically prepared ZnO NPs, when used for water treatment, are outlined. Additionally, their mechanisms of action, such as the photocatalytic degradation of dyes, the production of reactive oxygen species (ROS), the generation of compounds such as hydrogen peroxide and superoxide, Zn2+ release to degrade microbes, as well as their adsorbent properties with regard to heavy metals and other contaminants in water bodies, are explained. Furthermore, challenges facing the green synthesis of these nanomaterials are outlined. Future research should focus on how nanomaterials should reach the commercialization stage, and suggestions as to how this ought to be achieved are presented.
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Huang M, Lian J, Si R, Wang L, Pan X, Liu P. Spatial Separation of Electrons and Holes among ZnO Polar {0001} and {101̅0} Facets for Enhanced Photocatalytic Performance. ACS OMEGA 2022; 7:26844-26852. [PMID: 35936411 PMCID: PMC9352223 DOI: 10.1021/acsomega.2c03244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 07/11/2022] [Indexed: 05/07/2023]
Abstract
Spatial separation of electrons and holes is critical for improving their photocatalytic performance, which is ascribed to the suppressed photoinduced carriers' recombination among facets. In this work, the ZnO-Au-MnO x heterogeneous nanostructure photocatalyst was prepared by photodepositing Au and MnO x on the ZnO polar {0001} and {101̅0} crystal facets, respectively. The photocatalytic performance of ZnO-Au-MnO x was higher than ZnO and ZnO-Au for the degradation of rhodamine B dye under UV light irradiation. Due to the potential difference between different crystal planes of zinc oxide, electrons and holes will migrate to different crystal planes of zinc oxide. This will lead to the deposition of Au and MnO x on different crystal facets of zinc oxide. The efficient photoinduced carrier separation of ZnO-Au-MnO x resulted in the high photocatalytic activity, which is well supported by photoelectrochemical and photoluminescence analyses. The intermediated species formed during the reaction were investigated by high performance liquid chromatography. The reaction mechanism was investigated by radical trapping experiments and electron spin resonance analysis. The special structure of selective deposition of redox cocatalysts on the different facets should be promising and intriguing for designing highly efficient photocatalysts.
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Affiliation(s)
- Mianli Huang
- College
of Chemistry and Materials, Quanzhou Normal
University, Quanzhou 362000, China
- State
Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian 350002, China
| | - Jiafeng Lian
- College
of Chemistry and Materials, Quanzhou Normal
University, Quanzhou 362000, China
| | - Ruiru Si
- Institute
of Quality Standards & Testing Technology for Agro-Products, Fujian Academy of Agricultural Sciences/Fujian Key
Laboratory of Agro-Products Quality and Safety, Fuzhou 350003, China
| | - Lingling Wang
- College
of Chemistry and Materials, Quanzhou Normal
University, Quanzhou 362000, China
| | - Xiaoyang Pan
- College
of Chemistry and Materials, Quanzhou Normal
University, Quanzhou 362000, China
| | - Ping Liu
- State
Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fujian 350002, China
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Wu D, Huo B, Huang Y, Zhao X, Yang J, Hu K, Mao X, He P, Huang Q, Tang X. Synthesis of Stable Lead-Free Cs 3 Sb 2 (Br x I 1- x ) 9 (0 ≤ x ≤ 1) Perovskite Nanoplatelets and Their Application in CO 2 Photocatalytic Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106001. [PMID: 35112495 DOI: 10.1002/smll.202106001] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Exploring photocatalysts to foster CO2 photoreduction into high value-added chemicals is of great significance. Lead halide perovskites (LHPs) have recently been extensively investigated as photocatalysts, owing to their facile fabrication and prominent optoelectronic properties. However, the toxicity of lead and instability will hinder their future large-scale applications. To address these challenges, a series of lead-free Sb-based all-inorganic mixed halide perovskite Cs3 Sb2 (Brx I1- x )9 (0 ≤ x ≤ 1) nanoplatelets (NPLs) is synthesized. The perovskite NPLs are prepared using a ligand-assisted re-precipitation approach at 50 °C. The authors observe the tunability of their optical band gaps from 2.1 to 2.5 eV, and they can maintain the excellent stability over 120 h under heating at 100 °C or UV light irradiation. The resultant materials are employed as efficient photocatalysts for visible-light driven CO2 reduction at the gas-solid interface. The Cs3 Sb2 (Br0.7 I0.3 )9 perovskite NPLs afford an impressive overall yield of 27.7 µmol g-1 for the selective photocatalytic conversion of CO2 into CO. This study represents a significant demonstration for practical artificial photosynthesis by using LHP materials as photocatalysts.
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Affiliation(s)
- Daofu Wu
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, China
| | - Benjun Huo
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, China
| | - Yanyi Huang
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, China
| | - Xusheng Zhao
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, China
| | - Jiayu Yang
- College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
| | - Ke Hu
- Department of Chemistry, Shandong University, Weihai, 264200, China
| | - Xinchun Mao
- Institute of Materials, Chinese Academy of Engineering Physics, Jiangyou, 621908, China
| | - Peng He
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, China
| | - Qiang Huang
- College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
| | - Xiaosheng Tang
- Key Laboratory of Optoelectronic Technology & Systems (Ministry of Education), College of Optoelectronic Engineering, Chongqing University, Chongqing, 400044, China
- College of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China
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7
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Abdullah FH, Bakar NHHA, Bakar MA. Current advancements on the fabrication, modification, and industrial application of zinc oxide as photocatalyst in the removal of organic and inorganic contaminants in aquatic systems. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127416. [PMID: 34655867 DOI: 10.1016/j.jhazmat.2021.127416] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/08/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
Industrial wastewaters contain hazardous contaminants that pollute the environment and cause socioeconomic problems, thus demanding the employment of effective remediation procedures such as photocatalysis. Zinc oxide (ZnO) nanomaterials have emerged to be a promising photocatalyst for the removal of pollutants in wastewater owing to their excellent and attractive characteristics. The dynamic tunable features of ZnO allow a wide range of functionalization for enhanced photocatalytic efficiency. The current review summarizes the recent advances in the fabrication, modification, and industrial application of ZnO photocatalyst based on the analysis of the latest studies, including the following aspects: (1) overview on the properties, structures, and features of ZnO, (2) employment of dopants, heterojunction, and immobilization techniques for improved photodegradation performance, (3) applicability of suspended and immobilized photocatalytic systems, (4) application of ZnO hybrids for the removal of various types of hazardous pollutants from different wastewater sources in industries, and (5) potential of bio-inspired ZnO hybrid nanomaterials for photocatalytic applications using renewable and biodegradable resources for greener photocatalytic technologies. In addition, the knowledge gap in this field of work is also highlighted.
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Affiliation(s)
- F H Abdullah
- Nanoscience Research Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
| | - N H H Abu Bakar
- Nanoscience Research Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
| | - M Abu Bakar
- Nanoscience Research Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
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8
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Wang H, Ren X, Liu Z, Lv B. Chemical conversion based on the crystal facet effect of transition metal oxides and construction methods for sharp-faced nanocrystals. Chem Commun (Camb) 2022; 58:908-924. [PMID: 34981109 DOI: 10.1039/d1cc06721d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In-depth research has found that the nanocrystal facet of transition metal oxides (TMOs) greatly affects their heterogeneous catalytic performance, as well as the property of photocatalysis, gas sensing, electrochemical reaction, etc. that are all involved in chemical conversion processes. Therefore, the facet-dependent properties of TMO nanocrystals have been fully and carefully studied by combining systematic experiments and theoretical calculations, and mechanisms of chemical reactions are accurately explained at the molecular level, which will be closer to the essence of reactions. Evidently, as an accurate investigation on crystal facets, well-defined TMO nanocrystals are the basis and premise for obtaining relevant credible results, and shape-controlled synthesis of TMO nanocrystals thereby has received great attention and development. The success in understanding of facet-dependent properties and shape-controlled synthesis of TMO nanocrystals is highly valuable for the control of reaction and the design of high-efficiency TMO nanocrystal catalysts as well as other functional materials in practical applications.
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Affiliation(s)
- Huixiang Wang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China.
| | - Xiaobo Ren
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China.
| | - Zhong Liu
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, China. .,Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining, 810008, China
| | - Baoliang Lv
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, China.
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9
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El Hajraoui K, Colombara D, Virtuoso J, Waechter R, Deepak FL, Sadewasser S. Atomic-Scale Interface Modification Improves the Performance of Cu(In 1-xGa x)Se 2/Zn(O,S) Heterojunction Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:44207-44213. [PMID: 34515476 DOI: 10.1021/acsami.1c10251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cadmium-free buffer layers deposited by a dry vacuum process are mandatory for low-cost and environmentally friendly Cu(In1-xGax)Se2 (CIGS) photovoltaic in-line production. Zn(O,S) has been identified as an alternative to the chemical bath deposited CdS buffer layer, providing comparable power conversion efficiencies. Recently, a significant efficiency enhancement has been reported for sputtered Zn(O,S) buffers after an annealing treatment of the complete solar cell stack; the enhancement was attributed to interdiffusion at the CIGS/Zn(O,S) interface, resulting in wide-gap ZnSO4 islands formation and reduced interface defects. Here, we exclude interdiffusion or island formation at the absorber/buffer interface after annealing up to 200 °C using high-resolution scanning transmission electron microscopy (HR-STEM) and energy-dispersive X-ray spectroscopy (EDX). Interestingly, HR-STEM imaging reveals an epitaxial relationship between a part of the Zn(O,S) buffer layer grains and the CIGS grains induced by annealing at such a low temperature. This alteration of the CIGS/buffer interface is expected to lead to a lower density of interface defects, and could explain the efficiency enhancement observed upon annealing the solar cell stack, although other causes cannot be excluded.
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Affiliation(s)
- Khalil El Hajraoui
- International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga 4715-330, Portugal
| | - Diego Colombara
- International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga 4715-330, Portugal
- Università degli Studi di Genova, via Dodecaneso 31, Genova 16146, Italy
| | - José Virtuoso
- International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga 4715-330, Portugal
- Universidade Politécnica de Madrid, Avenida Complutense 30, 28040 Madrid, Spain
| | - Rolf Waechter
- NICE Solar Energy GmbH, 74523 Schwäbisch Hall, Germany
| | - Francis Leonard Deepak
- International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga 4715-330, Portugal
| | - Sascha Sadewasser
- International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga 4715-330, Portugal
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10
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Li Q, Ying M, Zhang M, Cheng W, Li W, Liao B, Zhang X. Structural characterization and surface polarity determination of polar ZnO films prepared by MBE. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01978-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Taniguchi T, Nurdiwijayanto L, Li S, Lim HE, Miyata Y, Lu X, Ma R, Tang DM, Ueda S, Tsukagoshi K, Sasaki T, Osada M. On/Off Boundary of Photocatalytic Activity between Single- and Bilayer MoS 2. ACS NANO 2020; 14:6663-6672. [PMID: 32396324 DOI: 10.1021/acsnano.9b09253] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Molecularly thin two-dimensional (2D) semiconductors are emerging as photocatalysts owing to their layer-number-dependent quantum effects and high charge separation efficiency. However, the correlation among the dimensionality, crystallinity, and photocatalytic activity of such 2D nanomaterials remains unclear. Herein, a Ag photoreduction technique coupled with microscopic analyses is employed to spatially resolve the photocatalytic activity of MoS2 as a model catalyst. Interestingly, we find that only monolayer (1L)-MoS2 is active for a Ag photoreduction reaction. The photocatalytic activity of 1L-MoS2 is enhanced by a built-in electrical field originated from the MoS2/SiO2 interface, instead of by the specific surface structure and quantum electronic state of 1L-MoS2. Furthermore, we observe photocatalytic active sites to be geometrically distributed on triangular 1L-MoS2 crystals, wherein the Ag particles are preferentially deposited on the outermost zigzag edges and defective inner parts of the triangular grains. The degradation of photocatalytic activity and electron mobility with the formation of Mo(VI) species indicates that the species inhibit the in-plane diffusion of the photogenerated electrons to the reductive sites. The monolayer-selectivity, activation, and inactivation mechanisms, unveiled in this work, will offer future directions in designing 2D nanophotocatalysts.
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Affiliation(s)
- Takaaki Taniguchi
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Leanddas Nurdiwijayanto
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Shisheng Li
- International Center for Young Scientists (ICYS), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Hong En Lim
- Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Yasumitsu Miyata
- Department of Physics, Tokyo Metropolitan University, Hachioji, Tokyo 192-0397, Japan
| | - Xueyi Lu
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Renzhi Ma
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Dang-Ming Tang
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Shigenori Ueda
- Synchrotron X-ray Station at SPring-8, National Institute for Materials Science (NIMS), 1-1-1 Sayo, Hyogo 679-5148, Japan
- Research Center for Advanced Measurement and Characterization, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Kazuhito Tsukagoshi
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Takayoshi Sasaki
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Minoru Osada
- World Premier International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
- Institute of Materials and Systems for Sustainability, Nagoya University, Furocho, Chikusa-ku, Nagoya 464-8603, Japan
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12
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Serrà A, Zhang Y, Sepúlveda B, Gómez E, Nogués J, Michler J, Philippe L. Highly reduced ecotoxicity of ZnO-based micro/nanostructures on aquatic biota: Influence of architecture, chemical composition, fixation, and photocatalytic efficiency. WATER RESEARCH 2020; 169:115210. [PMID: 31670084 DOI: 10.1016/j.watres.2019.115210] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 10/12/2019] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
Developing efficient sunlight photocatalysts with enhanced photocorrosion resistance and minimal ecotoxicological effects on aquatic biota is critical to combat water contamination. Here, the role of chemical composition, architecture, and fixation on the ecotoxicological effects on microalgae of different ZnO and ZnO@ZnS based water decontamination photocatalysts was analyzed in depth. In particular, the ecotoxicological effects of films, nanoparticles and biomimetic micro/nano-ferns were carefully assessed by correlating the algae's viability to the Zn(II) release, the photocatalyst-microalgae interaction, and the production of reactive oxygen species (ROS). The results showed a drastic improvement in algal viability for supported ZnO@ZnS core@shell micro/nanoferns, as their ecotoxicity after 96 h light exposure was significantly lower (3.7-10.0% viability loss) compared to the ZnO films (18.4-35.5% loss), ZnO micro/nanoferns (28.5-53.5% loss), ZnO nanoparticles (48.3-91.7% loss) or ZnO@ZnS nanoparticles (8.6-19.2% loss) for catalysts concentrations ranging from 25 mg L-1 to 400 mg L-1. In particular, the ZnO@ZnS micro/nanoferns with a concentration of 400 mg L-1 exhibited excellent photocatalytic efficiency to mineralize a multi-pollutant solution (81.4 ± 0.3% mineralization efficiency after 210 min under UV-filtered visible light irradiation) and minimal photocorrosion (<5% of photocatalyst dissolution after 96 h of UV-filtered visible light irradiation). Remarkably, the ZnO@ZnS micro/nanoferns showed lower loss of algal viability (9.8 ± 1.1%) after 96 h of light exposure, with minimal reduction in microalgal biomass (9.1 ± 1.0%), as well as in the quantity of chlorophyll-a (9.5 ± 1.0%), carotenoids (8.6 ± 0.9%) and phycocyanin (5.6 ± 0.6%). Altogether, the optimized ZnO@ZnS core@shell micro/nanoferns represent excellent ecofriendly photocatalysts for water remediation in complex media, as they combine enhanced sunlight remediation efficiency, minimal adverse effects on biological microorganisms, high reusability and easy recyclability.
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Affiliation(s)
- Albert Serrà
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602, Thun, Switzerland.
| | - Yue Zhang
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193, Barcelona, Spain
| | - Borja Sepúlveda
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193, Barcelona, Spain
| | - Elvira Gómez
- Grup d'Electrodeposició de Capes Primes i Nanoestructures (GE-CPN), Departament de Ciència de Materials i Química Física, Universitat de Barcelona, Martí i Franquès, 1, E-08028, Barcelona, Catalonia, Spain; Institute of Nanoscience and Nanotechnology (IN(2)UB), Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Josep Nogués
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, E-08193, Barcelona, Spain; ICREA, Pg. Lluís Companys 23, E-08010, Barcelona, Spain
| | - Johann Michler
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602, Thun, Switzerland
| | - Laetitia Philippe
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602, Thun, Switzerland
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Dossin Zanrosso C, Piazza D, Lansarin MA. Solution mixing preparation of PVDF/ZnO polymeric composite films engineered for heterogeneous photocatalysis. J Appl Polym Sci 2019. [DOI: 10.1002/app.48417] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Crissie Dossin Zanrosso
- Department of Chemical Engineering, Federal University of Rio Grande do Sul 90035‐007 Porto Alegre RS Brazil
| | - Diego Piazza
- Polymer Laboratory, University of Caxias do Sul 95070‐560 Caxias do Sul RS Brazil
| | - Marla Azário Lansarin
- Department of Chemical Engineering, Federal University of Rio Grande do Sul 90035‐007 Porto Alegre RS Brazil
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15
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Rahut S, Basu SS, Basu JK. Surfactant assisted self-assembly of Ag+ containing nanocrystals and their facet dependent photocatalytic activity. CrystEngComm 2019. [DOI: 10.1039/c8ce01563e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This work demonstrates a general route for synthesis of nanocatalysts containing silver ions using surfactants.
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Affiliation(s)
- Sibsankar Rahut
- Department of Chemical Engineering
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Soumya Shankar Basu
- Department of Chemical Engineering
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Jayanta Kumar Basu
- Department of Chemical Engineering
- Indian Institute of Technology
- Kharagpur 721302
- India
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16
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Ando T, Bhamidimarri SP, Brending N, Colin-York H, Collinson L, De Jonge N, de Pablo PJ, Debroye E, Eggeling C, Franck C, Fritzsche M, Gerritsen H, Giepmans BNG, Grunewald K, Hofkens J, Hoogenboom JP, Janssen KPF, Kaufman R, Klumpermann J, Kurniawan N, Kusch J, Liv N, Parekh V, Peckys DB, Rehfeldt F, Reutens DC, Roeffaers MBJ, Salditt T, Schaap IAT, Schwarz US, Verkade P, Vogel MW, Wagner R, Winterhalter M, Yuan H, Zifarelli G. The 2018 correlative microscopy techniques roadmap. JOURNAL OF PHYSICS D: APPLIED PHYSICS 2018; 51:443001. [PMID: 30799880 PMCID: PMC6372154 DOI: 10.1088/1361-6463/aad055] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 06/14/2018] [Accepted: 07/01/2018] [Indexed: 05/19/2023]
Abstract
Developments in microscopy have been instrumental to progress in the life sciences, and many new techniques have been introduced and led to new discoveries throughout the last century. A wide and diverse range of methodologies is now available, including electron microscopy, atomic force microscopy, magnetic resonance imaging, small-angle x-ray scattering and multiple super-resolution fluorescence techniques, and each of these methods provides valuable read-outs to meet the demands set by the samples under study. Yet, the investigation of cell development requires a multi-parametric approach to address both the structure and spatio-temporal organization of organelles, and also the transduction of chemical signals and forces involved in cell-cell interactions. Although the microscopy technologies for observing each of these characteristics are well developed, none of them can offer read-out of all characteristics simultaneously, which limits the information content of a measurement. For example, while electron microscopy is able to disclose the structural layout of cells and the macromolecular arrangement of proteins, it cannot directly follow dynamics in living cells. The latter can be achieved with fluorescence microscopy which, however, requires labelling and lacks spatial resolution. A remedy is to combine and correlate different readouts from the same specimen, which opens new avenues to understand structure-function relations in biomedical research. At the same time, such correlative approaches pose new challenges concerning sample preparation, instrument stability, region of interest retrieval, and data analysis. Because the field of correlative microscopy is relatively young, the capabilities of the various approaches have yet to be fully explored, and uncertainties remain when considering the best choice of strategy and workflow for the correlative experiment. With this in mind, the Journal of Physics D: Applied Physics presents a special roadmap on the correlative microscopy techniques, giving a comprehensive overview from various leading scientists in this field, via a collection of multiple short viewpoints.
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Affiliation(s)
- Toshio Ando
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Japan
| | | | | | - H Colin-York
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Headley Way, OX3 9DS Oxford, United Kingdom
| | | | - Niels De Jonge
- INM-Leibniz Institute for New Materials, 66123 Saarbrücken, Germany
- Saarland University, 66123 Saarbrücken, Germany
| | - P J de Pablo
- Dpto. Física de la Materia Condensada Universidad Autónoma de Madrid 28049, Madrid, Spain
- Instituto de Física de la Materia Condensada IFIMAC, Universidad Autónoma de Madrid 28049, Madrid, Spain
| | - Elke Debroye
- KU Leuven, Department of Chemistry, B-3001 Heverlee, Belgium
| | - Christian Eggeling
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Headley Way, OX3 9DS Oxford, United Kingdom
- Institute of Applied Optics, Friedrich-Schiller University, Jena, Germany
- Leibniz Institute of Photonic Technology (IPHT), Jena, Germany
| | - Christian Franck
- Department of Mechanical Engineering, University of Wisconsin-Madison, 1513 University Ave, Madison, WI 53706, United States of America
| | - Marco Fritzsche
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Headley Way, OX3 9DS Oxford, United Kingdom
- Kennedy Institute for Rheumatology, University of Oxford, Oxford, United Kingdom
| | - Hans Gerritsen
- Debye Institute, Utrecht University, Utrecht, Netherlands
| | - Ben N G Giepmans
- Department of Cell Biology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Kay Grunewald
- Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- Centre of Structural Systems Biology Hamburg and University of Hamburg, Hamburg, Germany
- Heinrich-Pette-Institute, Leibniz Institute of Virology, Hamburg, Germany
| | - Johan Hofkens
- KU Leuven, Department of Chemistry, B-3001 Heverlee, Belgium
| | | | | | - Rainer Kaufman
- Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- Centre of Structural Systems Biology Hamburg and University of Hamburg, Hamburg, Germany
- Department of Biochemistry, University of Oxford, Oxford, United Kingdom
| | - Judith Klumpermann
- Section Cell Biology, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584CX Utrecht, Netherlands
| | - Nyoman Kurniawan
- Centre for Advanced Imaging, The University of Queensland, Brisbane, QLD 4072, Australia
| | | | - Nalan Liv
- Section Cell Biology, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584CX Utrecht, Netherlands
| | - Viha Parekh
- Centre for Advanced Imaging, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Diana B Peckys
- Faculty of Medicine, Saarland University, 66421 Homburg, Germany
| | - Florian Rehfeldt
- University of Göttingen, Third Institute of Physics-Biophysics, 37077 Göttingen, Germany
| | - David C Reutens
- Centre for Advanced Imaging, The University of Queensland, Brisbane, QLD 4072, Australia
| | | | - Tim Salditt
- University of Göttingen, Institute for X-Ray Physics, 37077 Göttingen, Germany
| | - Iwan A T Schaap
- SmarAct GmbH, Schütte-Lanz-Str. 9, D-26135 Oldenburg, Germany
| | - Ulrich S Schwarz
- Institute for Theoretical Physics and BioQuant, Heidelberg University, Heidelberg, Germany
| | - Paul Verkade
- School of Biochemistry, University of Bristol, Bristol, United Kingdom
| | - Michael W Vogel
- Centre for Advanced Imaging, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Richard Wagner
- Department of Life Sciences & Chemistry, Jacobs University, Bremen, Germany
| | | | - Haifeng Yuan
- KU Leuven, Department of Chemistry, B-3001 Heverlee, Belgium
| | - Giovanni Zifarelli
- Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, United Kingdom
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Adhikari S, Sarath Chandra K, Kim DH, Madras G, Sarkar D. Understanding the morphological effects of WO 3 photocatalysts for the degradation of organic pollutants. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.03.024] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Hesari M, Mao X, Chen P. Charge Carrier Activity on Single-Particle Photo(electro)catalysts: Toward Function in Solar Energy Conversion. J Am Chem Soc 2018; 140:6729-6740. [DOI: 10.1021/jacs.8b04039] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mahdi Hesari
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Xianwen Mao
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Peng Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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19
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Zhou Y, Zhao D, Yang L, Zhao Z, Li D, Luo Q, Zhang Y, Cao F. Influences of Graphene Nanosheets Coating on Selectively Exposed Crystal Facet ZnO. ChemistrySelect 2018. [DOI: 10.1002/slct.201703046] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yi Zhou
- Department of Chemistry and Biological Engineering Changsha University of Science and Technology; Changsha 410114 China
| | - Dawei Zhao
- Department of Chemistry and Biological Engineering Changsha University of Science and Technology; Changsha 410114 China
| | - Luyue Yang
- Department of Chemistry and Biological Engineering Changsha University of Science and Technology; Changsha 410114 China
| | - Zhen Zhao
- Department of Chemistry and Biological Engineering Changsha University of Science and Technology; Changsha 410114 China
| | - Dandan Li
- Department of Chemistry and Biological Engineering Changsha University of Science and Technology; Changsha 410114 China
| | - Qinsheng Luo
- Department of Chemistry and Biological Engineering Changsha University of Science and Technology; Changsha 410114 China
| | - Ya Zhang
- Department of Chemistry and Biological Engineering Changsha University of Science and Technology; Changsha 410114 China
| | - Feng Cao
- Department of Chemistry and Biological Engineering Changsha University of Science and Technology; Changsha 410114 China
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20
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Synthesis of TiO2@g-C3N4 core-shell nanorod arrays with Z-scheme enhanced photocatalytic activity under visible light. J Colloid Interface Sci 2017; 508:419-425. [DOI: 10.1016/j.jcis.2017.08.065] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 08/17/2017] [Accepted: 08/19/2017] [Indexed: 11/20/2022]
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