1
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Tang Z, Wang Z, Yang H, Ma Z, Zhang Y, Jiang J, Wang Q. p-Type AgAuSe Quantum Dots. J Am Chem Soc 2024; 146:31799-31806. [PMID: 39512071 DOI: 10.1021/jacs.4c10691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2024]
Abstract
Control over the carrier type of semiconductor quantum dots (QDs) is pivotal for their optoelectronic device applications, and it remains a nontrivial and challenging task. Herein, a facile doping strategy via K impurity exchange is proposed to convert the NIR n-type toxic heavy-metal-free AgAuSe (AAS) QDs to p-type. When the dopant reaches saturation at approximately 22.2%, the Femi level shifts down to near the valence band, with the p-type carrier characteristics confirmed through photoluminescence, X-ray photoelectron spectroscopy, and ultraviolet photoelectron spectroscopy analysis. First-principles calculations reveal that K impurities preferentially occupy interstitial positions and form complex defects when combined with the abundant cationic vacancy in AAS caused by the high mobility of Ag, thereby functioning as a shallow acceptor to enhance p-type conductivity. A p-n homojunction based on AAS QDs has been fabricated and served as the active layer in a photodiode device, which demonstrates an excellent room-temperature detectivity of up to 2.29 × 1013 Jones and an outstanding linear dynamic range of over 103 dB. This study provides guidance for future design of the p-n homojunction using the toxic-metal-free Ag-based QDs and further unleashes their potential in advanced optoelectronic device applications.
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Affiliation(s)
- Zhiyong Tang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Zhixuan Wang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Hongchao Yang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Zhiwei Ma
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yejun Zhang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Jiang Jiang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Qiangbin Wang
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- College of Materials Sciences and Optoelectronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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Xiao Y, Zhang S, Shen Y, Shou J, Kong Y, Su D, Wang X, Yang Q, Yan D, Sun C, Fang S. Optimizing the intermediates adsorbability and revealing the dynamic reconstruction of Co 6Fe 3S 8 solid solution for bifunctional water splitting. J Colloid Interface Sci 2024; 664:329-337. [PMID: 38479269 DOI: 10.1016/j.jcis.2024.03.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 03/06/2024] [Accepted: 03/06/2024] [Indexed: 04/07/2024]
Abstract
Co9S8 has been extensively studied as a promising catalyst for water electrolysis. Doping Co9S8 with Fe improves its oxygen evolution reaction (OER) performance by regulating the catalyst self-reconfigurability and enhancing the absorption capacity of OER intermediates. However, the poor alkaline hydrogen evolution reaction (HER) properties of Co9S8 limit its application in bifunctional water splitting. Herein, we combined Fe doping and sulfur vacancy engineering to synergistically enhance the bifunctional water-splitting performance of Co9S8. The as-synthesized Co6Fe3S8 catalyst exhibited excellent OER and HER characteristics with low overpotentials of 250 and 84 mV, respectively. It also resulted in the low Tafel slopes of 135 mV dec-1 for the OER and 114 mV dec-1 for the HER. A two-electrode electrolytic cell with Co6Fe3S8 used as both the cathode and anode produced a current density of 10 mA cm-2 at a low voltage of only 1.48 V, maintaining high stability for 100 h. The results of in/ex-situ experiments indicated that the OER process induced electrochemical reconfiguration, forming CoOOH/FeOOH active species on the catalyst surface to enhance its OER performance. Density functional theory (DFT) simulations revealed that Fe doping and the presence of unsaturated coordination metal sites in Co6Fe3S8 promoted H2O and H* adsorption for the HER. The findings of this study can help develop a strategy for designing highly efficient bifunctional water splitting electrocatalysts.
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Affiliation(s)
- Yuanhua Xiao
- Key Laboratory of Surface & Interface Science and Technology/College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China.
| | - Shiwei Zhang
- Key Laboratory of Surface & Interface Science and Technology/College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Ya Shen
- Key Laboratory of Surface & Interface Science and Technology/College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Jinhui Shou
- Key Laboratory of Surface & Interface Science and Technology/College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Yang Kong
- Key Laboratory of Surface & Interface Science and Technology/College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Dangcheng Su
- Key Laboratory of Surface & Interface Science and Technology/College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Xuezhao Wang
- College of Chemical and Food, Zhengzhou University of Technology, Zhengzhou 450044, PR China
| | - Qingxiang Yang
- Key Laboratory of Surface & Interface Science and Technology/College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Dafeng Yan
- Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, PR China.
| | - Chengguo Sun
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China; School of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, P. R. China.
| | - Shaoming Fang
- Key Laboratory of Surface & Interface Science and Technology/College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
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3
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Gao P, Qiu N, Feng L, Zhang L. Dimension-controlled synthesis of BiOI for efficient visible light photodegradation of tetracycline: role of pore structure. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:29101-29112. [PMID: 38568304 DOI: 10.1007/s11356-024-32827-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 03/04/2024] [Indexed: 05/01/2024]
Abstract
The transformation of photogenerated charge carriers (PC) in variable dimensional photocatalyst plays a pivotal role in unraveling the generation of reactive species (RS). However, the dimensional structure-activity relationship in photocatalysis remains elusive, with limited insights into its intricacies. Herein, we report a controlled synthesis strategy by using polyvinyl pyrrolidone (PVP)-assisted precipitation method for BiOI photocatalyst. Due to the steric hindrance of PVP, the 3D microsphere (3D-PVP0.5) and porous structure (3D-PVP1) of BiOI catalysts have been successfully prepared at room temperature. The 3D-PVP1 photocatalyst contains abundant mesopores and larger pores, which significantly shorten the diffusion distance of PC. Also, these PC in porous structure is beneficial for transferring from the inner phase to the surface of materials. Combined with optical property and radicals trapping experiments, the recombination rate of PC in porous structure performs a significant decrease, leading to the generation of more dominated ROS (•O2- and h+). The •O2- played a dominated role (86.98% of contribution rate) in photodegradation of tetracycline (TC) in 3D-PVP1 photocatalytic process. Compared with 2D nanosheet of BiOI (16.7% removal rate of TC), the as-prepared 3D porous structure of BiOI catalyst exhibits unique stable and high removal capacities (90.5%) for TC photodegradation under visible light irradiation. The kobs of 3D-PVP1 photocatalyst increased by 5.1 times than that of 2D nanosheet. To investigate its practical application, the effects of inorganic anions and pH have been systematically studied. This work sheds light on the design of variable dimension BiOI catalyst and provides more insight into the transfer mechanism of PC.
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Affiliation(s)
- Peng Gao
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
- Engineering Research Center for Water Pollution Source Control & Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Nanting Qiu
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
- Engineering Research Center for Water Pollution Source Control & Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Li Feng
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
- Engineering Research Center for Water Pollution Source Control & Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Liqiu Zhang
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
- Engineering Research Center for Water Pollution Source Control & Eco-Remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
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Rezaei M, Nezamzadeh-Ejhieh A, Massah AR. A comprehensive review on the boosted effects of anion vacancy in the heterogeneous photocatalytic degradation, part I: Focus on sulfur, nitrogen, carbon, and halogen vacancies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115927. [PMID: 38181561 DOI: 10.1016/j.ecoenv.2024.115927] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/07/2023] [Accepted: 01/01/2024] [Indexed: 01/07/2024]
Abstract
The greenest environmental remediation way is the photocatalytic degradation of organic pollutants. However, limited photocatalytic applications are due to poor sunlight absorption and photogenerated charge carriers' recombination. These limitations can be overcome by introducing anion vacancy (AV) (O, S, N, C, and Halogen) defects in semiconductors that enhance light harvesting, facilitate charge separation, modulate electronic structure, and produce reactive radicals. In continuing part A of this review, in this part, we summarized the recent AVs' research, including S, N, C, and halogen vacancies on the boosted photocatalytic features of semiconductor materials, like metal oxides/sulfides, oxyhalides, and nitrides in detail. Also, we outline the recently developed AV designs for the photocatalytic degradation of organic pollutants. The AV creating and analysis methods and the recent photocatalytic applications and mechanisms of AV-mediated photocatalysts are reviewed. AV engineering photocatalysts' challenges and development prospects are illustrated to get a promising research direction.
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Affiliation(s)
- Mahdieh Rezaei
- Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran
| | - Alireza Nezamzadeh-Ejhieh
- Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran; Department of Chemistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran.
| | - Ahmad Reza Massah
- Department of Chemistry, Shahreza Branch, Islamic Azad University, P.O. Box 311-86145, Shahreza, Isfahan, Iran; Department of Chemistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran
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5
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Zhang M, Gao Y, Zhao Q, Wei J, Zheng L, Ouyang J, Na N. Oxygen Bridge Formed by Doping Nonmetal Atoms into Cationic Vacancies To Enhance the Photoelectrochemical Oxygen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37474337 DOI: 10.1021/acsami.3c06004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
To enhance photoelectrochemical (PEC) water splitting for renewable energy conversion, the conventional strategy is doping nonmetals into anionic vacancies. Compared to anionic vacancies, cationic vacancies are theoretically more effective and reliable for anchoring nonmetals owing to their larger radii and unique advantages. The current research mainly focuses on anionic vacancies, while there are few studies on cationic vacancies due to high formation energy and challenging characterizations by convenient techniques. To overcome the current limitations, nonmetallic S and P atoms are successfully doped into cationic vacancies on the TiO2 surface for tuning local electronic structures. In contrast to the traditional strategy of reducing the bandgaps, nonmetallic atom doping into cationic vacancies facilitates efficient electronic regulation for PEC enhancement without changing the bandgap. The enhanced performance is attributed to the formation of an oxygen bridge, which can accumulate electrons from surrounding S/P atoms. Significantly, the electron-enriched oxygen bridge efficiently transfers electrons to activate reaction site Ti, which can promote the oxygen evolution reaction performance. Density functional theory calculations reveal that the decrease of reaction energy barriers and the optimization of local electron distribution are conducive to electronic transmission. This would provide a high-efficiency electronic tuning strategy for improving PEC performance.
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Affiliation(s)
- Min Zhang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yixuan Gao
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Qi Zhao
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Juanjuan Wei
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility Institute of High Energy Physics Chinese Academy of Sciences, Beijing 100049, China
| | - Jin Ouyang
- Department of Chemistry, College of Arts and Sciences, Beijing Normal University at Zhuhai, Zhuhai 519087, China
| | - Na Na
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
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Liu B, Huang H, Xiao Z, Yang J, Zhu M. 2D/3D g-C3N4/BiOI heterostructure catalyst for efficient and robust photocatalytic NO removal. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Bisaria K, Wadhwa S, Mathur A, Roy S, Dixit A, Singh R. New bismuth oxyiodide/chitosan nanocomposite for ultrasonic waves expedited adsorptive removal of amoxicillin from aqueous medium: kinetic, isotherm and thermodynamic investigations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:86260-86276. [PMID: 34993771 DOI: 10.1007/s11356-021-17546-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
Amoxicillin (AMX) is a widely used antibiotic, which induces harmful effects to nature via bioaccumulation and persistence in the environment if discharged untreated into water bodies. In the current study, a novel bionanocomposite, bismuth oxyiodide-chitosan (BiOI-Ch), was synthesized by a facile precipitation method and its amoxicillin (AMX) adsorption capacity in the presence of ultrasonic waves has been explored. Multiple batch experiments were performed to achieve the optimum operational parameters for maximum adsorption of AMX and the obtained results were as follows: pH 3, 80 mg g-1 AMX concentration, 1.7 g L-1 adsorbent dose, temperature 298 K and ultrasonication time 20 min. Composite removed approximately 90% AMX from the solution under optimized conditions, while the maximal adsorption capacity was determined to be 81.01 mg g-1. BiOI-Ch exhibited superior adsorption capacity as compared to pure BiOI (33.78 mg g-1). To understand the dynamics of reaction, several kinetic and isotherm models were also examined. The adsorption process obeyed pseudo-second-order kinetic model (R2 = 0.98) and was well fitted to Freundlich isotherm (R2 = 0.99). The addition of biowaste chitosan to non-toxic bismuth-based nanoparticles coupled with ultrasonication led to enhanced functional groups as well as surface area of the nanocomposite resulting in superior adsorption capacity, fast adsorption kinetics and improved mass transfer for the removal of AMX molecules. Thus, this study demonstrates the synergistic effect of ultrasonication in improved performance of novel BiOI-Ch for potential application in the elimination of persistent and detrimental pollutants from industrial effluent after necessary optimization for large-scale operation.
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Affiliation(s)
- Kavya Bisaria
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector 125, Noida, Uttar Pradesh, 201313, India
| | - Shikha Wadhwa
- Department of Chemistry, School of Engineering, University of Petroleum and Energy Studies, Dehradun, India.
| | - Ashish Mathur
- Department of Physics, School of Engineering, University of Petroleum and Energy Studies, Dehradun, India
| | - Souradeep Roy
- Center for Interdisciplinary Research and Innovation, University of Petroleum and Energy Studies, Dehdradun, India
| | - Ashwani Dixit
- Central Pulp and Paper Research Institute, Saharanpur, India
| | - Rachana Singh
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector 125, Noida, Uttar Pradesh, 201313, India.
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Wang J, Mei H, Jin D, Lin Q, Zhang R, Wang X. Indirect Substitution Constructing Halogen-Vacancy BiOCl 1-xI n Solid Solution with a Suitable Surface Structure for Enhanced Photoredox Performance. Inorg Chem 2022; 61:8540-8549. [PMID: 35603717 DOI: 10.1021/acs.inorgchem.2c00704] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Photocatalytic technology has made a series of breakthroughs in environmental remediation, but the degradation performance of persistent heavy metal ions and organic pollutants is not particularly excellent. In addition, the layered structure of bismuth oxyhalides (BiOX, X = I, Br, and Cl) has been a popular material for photodegradation and photoelectrochemistry. Accordingly, with a view to construct a suitable band structure and control the surface structure, it is necessary to develop a strategy to synthesize a BiOCl1-xIn solid solution with halogen vacancies. In this study, halogen vacancies are in situ introduced into the BiOCl1-xIn solid solution through constructing chemical bonds between the hydroxyl groups in glycerol and the I ions during the growth process. The band of the halogen-vacancy BiOCl1-xIn solid solution is widened and active sites centered at halogen vacancies are formed in the direction favorable for the photocatalytic reaction, resulting in enhanced performance in the reduction of Cr(VI) and the oxidation of phenol. The results obtained can provide a new idea for the design of efficient photocatalysts by controlling the formation of halogen vacancies.
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Affiliation(s)
- Jintao Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, the College of Chemistry, Nanchang University, 999# Xuefu Road, Nanchang 330031, China
| | - Hao Mei
- School of Future Technology, Nanchang University, 999# Xuefu Road, Nanchang 330031, China
| | - Dai Jin
- School of Future Technology, Nanchang University, 999# Xuefu Road, Nanchang 330031, China
| | - Qingzhuo Lin
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, the College of Chemistry, Nanchang University, 999# Xuefu Road, Nanchang 330031, China
| | - Rongbin Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, the College of Chemistry, Nanchang University, 999# Xuefu Road, Nanchang 330031, China
| | - Xuewen Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, the College of Chemistry, Nanchang University, 999# Xuefu Road, Nanchang 330031, China
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Wu G, Sun J, Zhang Z, Guo D, Liu J, Liu L. Recent advances in biological applications of nanomaterials through defect engineering. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 816:151647. [PMID: 34785228 DOI: 10.1016/j.scitotenv.2021.151647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/07/2021] [Accepted: 11/09/2021] [Indexed: 06/13/2023]
Abstract
In recent years, defect engineering sprung up in the artificial nanomaterials (NMs) has attracted significant attention, since the physical and chemical properties of NMs could be largely optimized based on the rational control of different defect types and densities. Defective NMs equipped with the improved electric and catalytic ability, would be widely utilized as the photoelectric device and catalysts to alleviate the growing demands of industrial production and environmental treatments. In particular, considering that the features of targeting, adsorptive, loading and optical could be adjusted by the introduction of defects, numerous defective NMs are encouraged to be applied in the biological fields including bacterial inactivation, cancer therapy and so on. And this review is devoted to summarize the recent biological applications of NMs with abundant defects. Moreover, the opportunity of these defective NMs released into the surrounding environment continue to increase, the direct and indirect contact with biological molecules and organisms would be inevitable. Due to its high reactivity and adsorption triggered by defects, NMs tend to exhibit overestimate biological behaviors and effects on organisms. Thus, the sections regarding toxicological effects of NMs with abundant defects are also carried out to supplement the safety assessments of NMs and guide further applications in the industrial production and living.
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Affiliation(s)
- Guizhu Wu
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; College of Environmental Science and Engineering, Laboratory of Environmental Remediation and Pollution Control, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China
| | - Jingyu Sun
- College of Environmental Science and Engineering, Laboratory of Environmental Remediation and Pollution Control, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China
| | - Ze Zhang
- College of Environmental Science and Engineering, Laboratory of Environmental Remediation and Pollution Control, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China
| | - Donggang Guo
- College of Environment and Resource, Shanxi University, Taiyuan 30006, PR China.
| | - Jiandang Liu
- State Key Laboratory of Particle Detection and Electronics, University of Science & Technology of China, Hefei, Anhui 230026, PR China.
| | - Lu Liu
- College of Environmental Science and Engineering, Laboratory of Environmental Remediation and Pollution Control, Nankai University, 38 Tongyan Rd., Tianjin 300350, PR China.
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Wang C, Du P, Luo L, Tian Y, Li W. Utilizing Upconversion Emission to Improve the Photocatalytic Performance of the BiOI Microplate: A Bifunctional Platform for Pollutant Degradation and Hydrogen Production. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02500] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Can Wang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Peng Du
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Laihui Luo
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, China
| | - Yue Tian
- Institute of New Carbon Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
| | - Weiping Li
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang, China
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11
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Sun J, Xue H, Guo N, Song T, Hao Y, Sun J, Zhang J, Wang Q. Synergetic Metal Defect and Surface Chemical Reconstruction into NiCo
2
S
4
/ZnS Heterojunction to Achieve Outstanding Oxygen Evolution Performance. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jing Sun
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | - Hui Xue
- Dalian National Laboratory for Clean Energy & State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Niankun Guo
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | - Tianshan Song
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | - Yi‐ru Hao
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | - Jiawen Sun
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | - Jiangwei Zhang
- Dalian National Laboratory for Clean Energy & State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 P. R. China
| | - Qin Wang
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
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12
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Algethami FK, Elamin MR, Abdulkhair BY, Al‐Zharani M, Qarah NAS, Alghamdi MA. Fast fabrication of bismuth oxyiodide/carbon‐nanofibers composites for efficient anti‐proliferation of liver and breast cancer cells. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Faisal K. Algethami
- Imam Mohammad Ibn Saud Islamic University (IMSIU) College of Science, Chemistry Department P.O. Box 90905 Riyadh 11623 KSA
| | - Mohamed R. Elamin
- Imam Mohammad Ibn Saud Islamic University (IMSIU) College of Science, Chemistry Department P.O. Box 90905 Riyadh 11623 KSA
- Industrial research and consultancy center (IRCC) Khartoum North Sudan
| | - Babiker Y. Abdulkhair
- Imam Mohammad Ibn Saud Islamic University (IMSIU) College of Science, Chemistry Department P.O. Box 90905 Riyadh 11623 KSA
- Sudan University of Science and Technology (SUST) College of Science, Chemistry Department P.O. Box 407 Khartoum Sudan
| | - Mohammed Al‐Zharani
- Imam Mohammad Ibn Saud Islamic University (IMSIU) College of Science, Biology Department Riyadh Saudi Arabia
| | - Nagib A. S. Qarah
- Department of Chemistry, Faculty of Education-Zabid Hodeidah University Hodeidah Yemen
| | - Mashael A. Alghamdi
- Imam Mohammad Ibn Saud Islamic University (IMSIU) College of Science, Chemistry Department P.O. Box 90905 Riyadh 11623 KSA
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13
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Sun J, Xue H, Guo N, Song T, Hao YR, Sun J, Zhang J, Wang Q. Synergetic Metal Defect and Surface Chemical Reconstruction into NiCo 2 S 4 /ZnS Heterojunction to Achieve Outstanding Oxygen Evolution Performance. Angew Chem Int Ed Engl 2021; 60:19435-19441. [PMID: 34153176 DOI: 10.1002/anie.202107731] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Indexed: 02/03/2023]
Abstract
Defect and interface engineering are recognized as effective strategies to regulate electronic structure and improve activity of metal sulfide. However, the practical application of sulfide is restricted by their low conductivity and rapid decline in activity derived from large volume fluctuation during electrocatalysis process. More importantly, the determination of exact active site of sulfide is complicated due to the inevitable electrochemical reconstruction. Herein, ZnS nanoparticles with Zn defect are anchored onto the surface of NiCo2 S4 nanosheet to construct NiCo2 S4 /ZnS hybrids, which exhibit outstanding oxygen evolution performance with an ultralow overpotential of 140 mV. The anchoring of defective ZnS nanoparticles inhibit the volume expansion of NiCo2 S4 nanosheet during the cycling process. Density-functional theory reveals that the build-in interfacial potential and Zn defect can facilitate the thermodynamic formation of *O to *OOH, thus improve their intrinsic activity.
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Affiliation(s)
- Jing Sun
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Hui Xue
- Dalian National Laboratory for Clean Energy & State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Niankun Guo
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Tianshan Song
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Yi-Ru Hao
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Jiawen Sun
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Jiangwei Zhang
- Dalian National Laboratory for Clean Energy & State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Qin Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
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14
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Xu Y, Yan A, Zhang X, Huang F, Li D, Zhao X, Weng H, Zhang Z. Nb/Se Co-doped BiOI nanomaterials with exposed (110) facets for enhanced visible-light-driven photocatalytic activity. Chem Commun (Camb) 2021; 57:5774-5777. [PMID: 33997881 DOI: 10.1039/d1cc01336j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, an efficient strategy is demonstrated to prepare a visible-light-driven Nb/Se co-doped BiOI photocatalyst with exposed (110) facets. The results show that its photocatalytic activity is around 17 times higher than that of pure BiOI. This work paves the way towards the fabrication of efficient photocatalysts that have tunable charge dynamics.
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Affiliation(s)
- Yifeng Xu
- Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, China. and School of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Aihua Yan
- Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, China. and School of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Xiaohui Zhang
- School of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Fei Huang
- Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou 221008, China. and Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, China University of Mining and Technology, Xuzhou 221008, China
| | - Dengke Li
- School of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Xianhui Zhao
- School of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Haifeng Weng
- School of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Zhuoyu Zhang
- School of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, China
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15
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Zhu M, Chen H, Dai Y, Wu X, Han Z, Zhu Y. Novel n‐p‐n heterojunction of AgI/BiOI/UiO‐66 composites with boosting visible light photocatalytic activities. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6186] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Min Zhu
- Hanlin College Nanjing University of Chinese Medicine Taizhou China
| | - Huimin Chen
- Hanlin College Nanjing University of Chinese Medicine Taizhou China
| | - Yu Dai
- Hanlin College Nanjing University of Chinese Medicine Taizhou China
| | - Xuanyu Wu
- Hanlin College Nanjing University of Chinese Medicine Taizhou China
| | - Zhiguo Han
- College of Pharmacy and Chemistry & Chemical Engineering, Jiangsu Key Laboratory of Chiral Pharmaceuticals Biomanufacturing Taizhou University Taizhou China
| | - Yu Zhu
- College of Pharmacy and Chemistry & Chemical Engineering, Jiangsu Key Laboratory of Chiral Pharmaceuticals Biomanufacturing Taizhou University Taizhou China
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16
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Electrochemically triggered iodide-vacancy BiOI film for selective extraction of iodide ion from aqueous solutions. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118120] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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17
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Wei YL, Rong B, Chen X, Ding YY, Huang YF, Fan LQ, Wu JH. Porous and visible-light-driven p–n heterojunction constructed by Bi2O3 nanosheets and WO3 microspheres with enhanced photocatalytic performance. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117815] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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18
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Construction of stable Ti3+-TiO2 photocatalytic membrane for enhanced photoactivity and emulsion separation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118748] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Shen Q, Wang J, Xu B, Liu G, Huo H, Sun Y, Cao B, Li C. Photoinduced defect engineering: enhanced photocatalytic performance of 3D BiOCl nanoclusters with abundant oxygen vacancies. CrystEngComm 2021. [DOI: 10.1039/d0ce01652g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Oxygen vacancies are highly important for photocatalytic performance in bismuth oxychloride, but their preparation is limited to vacuum roasting and hydrogen annealing techniques at high temperatures (200–400 °C).
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Affiliation(s)
- Qi Shen
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Junnuan Wang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Bo Xu
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Guangning Liu
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
| | - Huanyu Huo
- Foshan (Southern China) Institute for New Materials
- Foshan 528200
- China
| | - Yiqiang Sun
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
- Foshan (Southern China) Institute for New Materials
| | - Bingqiang Cao
- School of Materials Science And Engineering
- University of Jinan
- Jinan 250022
- China
| | - Cuncheng Li
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- China
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20
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One-step exfoliation of polymeric C3N4 by atmospheric oxygen doping for photocatalytic persulfate activation. J Colloid Interface Sci 2020; 579:455-462. [DOI: 10.1016/j.jcis.2020.06.064] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/12/2020] [Accepted: 06/13/2020] [Indexed: 11/22/2022]
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21
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Guo M, Zhou Z, Yan S, Zhou P, Miao F, Liang S, Wang J, Cui X. Bi 2WO 6-BiOCl heterostructure with enhanced photocatalytic activity for efficient degradation of oxytetracycline. Sci Rep 2020; 10:18401. [PMID: 33110125 PMCID: PMC7591564 DOI: 10.1038/s41598-020-75003-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 09/28/2020] [Indexed: 12/20/2022] Open
Abstract
The application of BiOCl in photocatalysis has been restricted by its low utilization of solar energy and fast recombination of charge carriers. In this study, zero-dimensional (0D) Bi2WO6 nanoparticles/two-dimensional (2D) layered BiOCl heterojunction composite was successfully constructed by facile hydrothermal and solvothermal methods. The most favorable sunlight photocatalytic activity was achieved for the as-prepared Bi2WO6–BiOCl composites with a ratio of 1%. The photocatalytic rate and mineralization efficiency of one typical antibiotic (i.e., oxytetracycline) over 1% Bi2WO6–BiOCl was about 2.7 and 5.3 times as high as that of BiOCl. Both experimental characterizations and density functional theory (DFT) calculations confirmed that the excellent photocatalytic performance mainly arised from the effective charge separation along the Bi2WO6 and BiOCl heterojunction interface. The effective electron transfer was driven by the internal electric field at the interfacial junction. In addition, 1% Bi2WO6–BiOCl exhibited excellent stability, and no apparent deactivation was observed after 4 test cycles. Therefore, the 0D/2D Bi2WO6–BiOCl heterojunction showed a great potential for the photocatalytic degradation of emerging organic pollutants.
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Affiliation(s)
- Mengfan Guo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing University, 163 Xianlin Avenue, Nanjing, 210046, China
| | - Zhaobo Zhou
- Department of Physics, Southeast University, Nanjing, 211189, China
| | - Shengnan Yan
- National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced, Microstructures Nanjing University, Nanjing, 210093, China
| | - Pengfei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing University, 163 Xianlin Avenue, Nanjing, 210046, China
| | - Feng Miao
- National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced, Microstructures Nanjing University, Nanjing, 210093, China
| | - Shijun Liang
- National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced, Microstructures Nanjing University, Nanjing, 210093, China
| | - Jinlan Wang
- Department of Physics, Southeast University, Nanjing, 211189, China
| | - Xinyi Cui
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing University, 163 Xianlin Avenue, Nanjing, 210046, China.
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22
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Zhang P, Liu H, Liang H, Bai J, Li C. Enhanced Charge Separation of α-Bi2O3-BiOI Hollow Nanotube for Photodegradation Antibiotic Under Visible Light. Chem Res Chin Univ 2020. [DOI: 10.1007/s40242-020-0170-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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23
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Feng J, Qian Y, Cheng Q, Ma Y, Wu D, Ma H, Ren X, Wang X, Wei Q. A signal amplification of p DNA@Ag 2S based photoelectrochemical competitive sensor for the sensitive detection of OTA in microfluidic devices. Biosens Bioelectron 2020; 168:112503. [PMID: 32866723 DOI: 10.1016/j.bios.2020.112503] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/24/2020] [Accepted: 08/06/2020] [Indexed: 01/15/2023]
Abstract
In this work, a signal amplification competitive-type photoelectrochemical system comprised of bismuth sulfide/bismuth oxyiodide/zinc oxide (Bi2S3/BiOI/ZnO) nano-array as platform and Ag2S-modified aptamers probe DNA (p DNA@Ag2S) as competition content for rapid and sensitive detection of OTA in microfluidic devices. The BiOI nano-array was first growth on surfaces of ZnO by a simple electrodeposited method, which provided large specific surface area and high stability to solve distribution of sensing platform and loose of combination of sensing substrate. Then, the Bi2S3 could be in-situ growth by self-sacrificial part Bi3+ of BiOI to form heterojunction without destroying the structure of the nano-array. A strong photocurrent intensity was acquired by the Bi2S3/BiOI/ZnO modified onto indium tin oxide (ITO) electrode, due to its good matching cascade band-edge levels could improve efficient separation of photo-generated e-/h+ pairs. After immobilizing with the capture DNA (c DNA) and the sequential hybridization of p DNA@Ag2S, the photocurrent intensity reduced obviously because part photo-generated electron transformed to Ag2S rather than Bi2S3/BiOI/ZnO electrode. Subsequently, the photocurrent intensity increased evident when immobilized the target OTA, owing to the OTA could bind the p DNA@Ag2S to form the specific-complex that were released from the electrode surface. Under optimal conditions, the prepared PEC microfluidic sensor exhibited a linear concentration of OTA from 0.01 pg/mL to 200 ng/mL with a low detection limit of 0.0035 pg/mL (S/N = 3). Furthermore, it achieved high sensitivity, good specificity, and acceptable stability and further provided an efficient method for sensitive detection of other target mycotoxins in practical application.
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Affiliation(s)
- Jinhui Feng
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Yanrong Qian
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Qian Cheng
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Yingming Ma
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Dan Wu
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Hongmin Ma
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Xiang Ren
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China
| | - Xueying Wang
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
| | - Qin Wei
- Collaborative Innovation Center for Green Chemical Manufacturing and Accurate Detection, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, PR China.
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24
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Wang J, Xu X, Liu Y, Wang Z, Wang P, Zheng Z, Cheng H, Dai Y, Huang B. Oxygen-Vacancy-Enhanced Singlet Oxygen Production for Selective Photocatalytic Oxidation. CHEMSUSCHEM 2020; 13:3488-3494. [PMID: 32367650 DOI: 10.1002/cssc.202000595] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Oxygen vacancies are usually thought to be beneficial for photogenerated charge separation. In this work, the oxygen vacancies in ov-Bi2 O3 (Bi2 O3 with oxygen vacancy) were found to be able to produce 1 O2 in the dark owing to chemical adsorption. The oxygen vacancies were further found to be responsible for ov-Bi2 O3 exhibiting higher 1 O2 generation under light irradiation with 1 O2 as the only reactive oxygen species (ROS) than Bi2 O3 with 1 O2 , H2 O2 , and others as the ROS. The photocatalytic activity was investigated for the selective photo-oxidation of phenyl methyl sulfide to phenyl methyl sulfoxide and phenyl alcohol to benzaldehyde. In either case, ov-Bi2 O3 displayed better performance than Bi2 O3 , suggesting the significant role of oxygen vacancies in modulating the photocatalytic oxidation properties. This work provides an alternative approach to obtain singlet oxygen, which may guide further design of photocatalysts with high efficiency and selectivity towards photocatalytic organic synthesis.
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Affiliation(s)
- Jiajia Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Xilong Xu
- School of Physics, Shandong University, Jinan, 250100, P.R. China
| | - Yuanyuan Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Zeyan Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Peng Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Zhaoke Zheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Hefeng Cheng
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
| | - Ying Dai
- School of Physics, Shandong University, Jinan, 250100, P.R. China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P.R. China
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25
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Guo N, Xue H, Bao A, Wang Z, Sun J, Song T, Ge X, Zhang W, Huang K, He F, Wang Q. Achieving Superior Electrocatalytic Performance by Surface Copper Vacancy Defects during Electrochemical Etching Process. Angew Chem Int Ed Engl 2020; 59:13778-13784. [PMID: 32329190 DOI: 10.1002/anie.202002394] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 03/29/2020] [Indexed: 11/06/2022]
Abstract
Vacancy defects of catalysts have been extensively studied and proven to be beneficial to various electrocatalytic reactions. Herein, an ultra-stable three-dimensional PtCu nanowire network (NNW) with ultrafine size, self-supporting rigid structure, and Cu vacancy defects has been developed. The vacancy defect-rich PtCu NNW exhibits an outstanding performance for the oxygen reduction reaction (ORR), with a mass activity 14.1 times higher than for the commercial Pt/C catalyst (20 %.wt, JM), which is currently the best performance. The mass activity of the PtCu NNW for methanol oxidation reaction (MOR) is 17.8 times higher than for the commercial Pt/C catalyst. Density-functional theory (DFT) calculations indicate that the introduction of Cu vacancies enhances the adsorption capacity of Pt atoms to the HO* intermediate and simultaneously weakens the adsorption for the O* intermediate. This work presents a facile strategy to assemble efficient electrocatalysts with abundant vacancy defects, at the same time, provides an insight into the ORR mechanism in acidic solution.
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Affiliation(s)
- Niankun Guo
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Hui Xue
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Amurisana Bao
- Hohhot Vacational College, Hohhot, 010051, P. R. China
| | - Zihong Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Jing Sun
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Tianshan Song
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Xin Ge
- Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, Jilin University, P. R. China
| | - Wei Zhang
- Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, Jilin University, P. R. China
| | - Keke Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130022, P. R. China
| | - Feng He
- Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Qin Wang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
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26
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Guo N, Xue H, Bao A, Wang Z, Sun J, Song T, Ge X, Zhang W, Huang K, He F, Wang Q. Achieving Superior Electrocatalytic Performance by Surface Copper Vacancy Defects during Electrochemical Etching Process. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002394] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Niankun Guo
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | - Hui Xue
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | | | - Zihong Wang
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | - Jing Sun
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | - Tianshan Song
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
| | - Xin Ge
- Key Laboratory of Mobile Materials MOE School of Materials Science & Engineering Electron Microscopy Center Jilin University P. R. China
| | - Wei Zhang
- Key Laboratory of Mobile Materials MOE School of Materials Science & Engineering Electron Microscopy Center Jilin University P. R. China
| | - Keke Huang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun 130022 P. R. China
| | - Feng He
- Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Qin Wang
- College of Chemistry and Chemical Engineering Inner Mongolia University Hohhot 010021 P. R. China
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27
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Guan G, Ye E, You M, Li Z. Hybridized 2D Nanomaterials Toward Highly Efficient Photocatalysis for Degrading Pollutants: Current Status and Future Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1907087. [PMID: 32301226 DOI: 10.1002/smll.201907087] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/29/2020] [Accepted: 03/02/2020] [Indexed: 06/11/2023]
Abstract
Organic pollutants including industrial dyes and chemicals and agricultural waste have become a major environmental issue in recent years. As an alternative to simple adsorption, photocatalytic decontamination is an efficient and energy-saving technology to eliminate these pollutants from water environment, utilizing the energy of external light, and unique function of photocatalysts. Having a large specific surface area, numerous active sites, and varied band structures, 2D nanosheets have exhibited promising applications as an efficient photocatalyst for degrading organic pollutants, particularly hybridization with other functional components. The novel hybridization of 2D nanomaterials with various functional species is summarized systematically with emphasis on their enhanced photocatalytic activities and outstanding performances in environmental remediation. First, the mechanism of photocatalytic degradation is given for discussing the advantages/shortcomings of regular 2D materials and identifying the importance of constructing hybrid 2D photocatalysts. An overview of several types of intensively investigated 2D nanomaterials (i.e., graphene, g-C3 N4 , MoS2 , WO3 , Bi2 O3 , and BiOX) is then given to indicate their hybridized methodologies, synergistic effect, and improved applications in decontamination of organic dyes and other pollutants. Finally, future research directions are rationally suggested based on the current challenges.
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Affiliation(s)
- Guijian Guan
- Institute of Molecular Plus, Tianjin University, Tianjin, 300072, P. R. China
| | - Enyi Ye
- Institute of Materials Research and Engineering, A*STAR, 2 Fusionopolis Way, Singapore, 138634, Singapore
| | - Mingliang You
- Hangzhou Cancer Institute, Affiliated Hangzhou Cancer Hospital, Zhejiang University School of Medicine, Hangzhou, 310002, P. R. China
| | - Zibiao Li
- Department of Clinical Pharmacy, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, P. R. China
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28
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Wu J, Qin N, Lin E, Yuan B, Kang Z, Bao D. Synthesis of Bi 4Ti 3O 12 decussated nanoplates with enhanced piezocatalytic activity. NANOSCALE 2019; 11:21128-21136. [PMID: 31682250 DOI: 10.1039/c9nr07544e] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A variety of nanostructured Bi4Ti3O12 materials with diverse morphologies were synthesized by a novel hydrothermal method using layered titanate Na2Ti3O7 as a synthetic precursor. Among these materials, decussated nanoplates exhibit superior piezocatalytic activity compared with other piezocatalysts of the perovskite family. The enhanced piezocatalytic activity is attributed to the large piezoelectric potential difference and the short distance between polar surfaces, which may help enhance the driving force of charge transport. The finite element method (FEM) simulation of piezoelectric response in different Bi4Ti3O12 nanostructures was performed to illustrate the influence of morphological features on the piezocatalytic performance. The catalytic mechanism of Bi4Ti3O12 was investigated by the detection and characterization of free radicals and intermediate products with electron spin resonance (ESR) spin-trapping technique and liquid chromatography-mass spectrometry (LC-MS). This work may push forward the development of piezocatalytic materials, and provide insights into piezocatalysis for environmental applications.
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Affiliation(s)
- Jiang Wu
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Ni Qin
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Enzhu Lin
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Baowei Yuan
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Zihan Kang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
| | - Dinghua Bao
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
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Remarkably Facile Preparation of Superhydrophobic Functionalized Bismuth Trioxide (Bi2O3) Coatings. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9132653] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Herein, a novel superhydrophobic functionalized nano-Bi2O3 coating is designed and fabricated using electrophoretic assembly deposition (EAD) in the optimal suspension of polyethylene glycol, ethanol, acetylacetone, and surface functionalization. The small size (70 nm, nano-scale) of Bi2O3 particles and uniform distribution make the target film possessing a promising structure for realizing hydrophobic functionalization. Moreover, the hydrophobicity and stability results indicate that the product has a high-water contact angle (CA) of ca. 167° and is kept almost stable after 180 days exposure in the natural environment. These findings will provide new insight into a better design of superhydrophobic functional coatings via this facile method, holding great promise for future various applications.
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Yang Y, Chen J, Liu X, Qiu M, Liu L, Gao F. Oxygen vacancy-mediated WO 3 nanosheets by etched {200} facets and the efficient visible-light photocatalytic oxygen evolution. NEW J CHEM 2019. [DOI: 10.1039/c9nj04286e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The abundant oxygen vacancies in WO3 nanosheets result in the significant improvement of the photocatalytic O2 evolution.
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Affiliation(s)
- Yurong Yang
- College of Science
- Heihe University
- Heihe
- P. R. China
- Key Laboratory of Superlight Materials and Surface Technology
| | - Jiaming Chen
- College of Science
- Heihe University
- Heihe
- P. R. China
| | - Xuelian Liu
- College of Science
- Heihe University
- Heihe
- P. R. China
| | - Min Qiu
- College of Science
- Heihe University
- Heihe
- P. R. China
| | - Li Liu
- College of Science
- Heihe University
- Heihe
- P. R. China
| | - Fan Gao
- College of Science
- Heihe University
- Heihe
- P. R. China
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