1
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Liu X, Li Y, Ma J, Zheng J. High-sensitivity amperometric hydrazine sensor based on AuNPs decorated with hollow-structured copper molybdenum sulfide nanomaterials. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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2
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Shi Y, Jiang D, Zhao J, Wu L, Zhao C, Ma J, Pan H, Lin Q. Synthesis and performance of Pd Multi@HCS catalysts with Pd nanoparticles partially embedded in the inner wall of hollow carbon spheres for the direct synthesis of hydrogen peroxide from hydrogen and oxygen. NEW J CHEM 2022. [DOI: 10.1039/d2nj01778d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PdMulti@HCS catalysts ensure the maximum exposure of Pd active sites and optimal transfer and diffusion ability for H2O2 synthesis.
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Affiliation(s)
- Yongyong Shi
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Donghai Jiang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, China
| | - Jingyun Zhao
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Lang Wu
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Chenchen Zhao
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Jun Ma
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Hongyan Pan
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
| | - Qian Lin
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
- Guizhou Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou 550025, China
- Guizhou Engineering Research Center of Efficient Utilization for Industrial Waste, Guiyang, Guizhou 550025, China
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3
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Fu M, Li M, Zhao Y, Bai Y, Fang X, Kang X, Yang M, Wei Y, Xu X. A study on the high efficiency reduction of p-nitrophenol (4-NP) by a Fe(OH) 3/Fe 2O 3@Au composite catalyst. RSC Adv 2021; 11:26502-26508. [PMID: 35479987 PMCID: PMC9037387 DOI: 10.1039/d1ra04073a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/16/2021] [Indexed: 11/21/2022] Open
Abstract
Precious metal nanometric catalysts are widely used in the removal of harmful substances. In the process of synthesis and catalytic reaction, it is particularly important to study green and simple synthesis methods and high catalytic efficiency. In this paper, a green one-step method was used to synthesize the Fe(OH)3/Fe2O3@Au composite catalyst, in which Au was single atom-dispersed. The removal of 4-nitrophenol (4-NP), a typical dangerous chemical widely existing in factory waste gas, waste water and automobile exhaust gas, was catalysed by Fe(OH)3/Fe2O3@Au. The catalytic performance of Fe(OH)3/Fe2O3@Au with different synthesis conditions (different amounts of MES, NaBH4, FeSO4, Au and Pt) on the 4-NP reduction reaction were systematically studied. Finally, the stability and recyclability of Fe(OH)3/Fe2O3@Au composite nanocatalyst were investigated thoroughly.
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Affiliation(s)
- Meirong Fu
- College of Science, Gansu Agricultural University No. 1 Yingmen Village Lanzhou 730070 P. R. China
| | - Mingqiang Li
- College of Science, Gansu Agricultural University No. 1 Yingmen Village Lanzhou 730070 P. R. China
| | - Yingying Zhao
- College of Science, Gansu Agricultural University No. 1 Yingmen Village Lanzhou 730070 P. R. China
| | - Yunxiang Bai
- College of Science, Gansu Agricultural University No. 1 Yingmen Village Lanzhou 730070 P. R. China
| | - Xingzhong Fang
- College of Science, Gansu Agricultural University No. 1 Yingmen Village Lanzhou 730070 P. R. China
| | - Xiaolong Kang
- College of Science, Gansu Agricultural University No. 1 Yingmen Village Lanzhou 730070 P. R. China
| | - Min Yang
- College of Science, Gansu Agricultural University No. 1 Yingmen Village Lanzhou 730070 P. R. China
| | - Yanping Wei
- College of Science, Gansu Agricultural University No. 1 Yingmen Village Lanzhou 730070 P. R. China
| | - Xia Xu
- College of Science, Gansu Agricultural University No. 1 Yingmen Village Lanzhou 730070 P. R. China
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4
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Song S, Zhao Y, Li Y, Yang X, Wang D, Wen Z, Yang M, Lin Q. pH-responsive copper-cluster-based dual-emission ratiometric fluorescent probe for imaging of bacterial metabolism. Talanta 2020; 221:121621. [PMID: 33076149 DOI: 10.1016/j.talanta.2020.121621] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 08/25/2020] [Accepted: 09/01/2020] [Indexed: 11/17/2022]
Abstract
The profiling of bacterial metabolism is of great significance in practical applications. Therefore, the development of ultrasensitive and highly selective probe for bacterial metabolism detection and imaging is extremely desirable. Herein, a novel dual-emission pH-response bacterial metabolism detection and imaging probe is successfully developed. This probe consists of large-sized and easily separated SiO2 microspheres, copper nanoclusters (Cu NCs) with red emission, and carbon dots (CDs) with blue emission through in-situ self-assembly. In this system, the fluorescence of Cu NCs is sensitive to pH change due to their obvious aggregation-induced emission enhancement (AIEE) property, while the blue fluorescence of CDs remained almost stable. Therefore, red fluorescence and blue fluorescence are compounded with different fluorescence intensity at different pH values, and their fluorescence ratio is also different. By observation of composite fluorescence color, the visual colorimetric pH detection can be realized with the change of pH value of 0.2 units. Utilizing this system, we are able to detect bacterial metabolism with high signal-to-noise ratio, and it can also be used for bacterial metabolic imaging. Therefore, the pH-responsive Cu NCs-based dual-emission ratiometric fluorescent probe we constructed can provide new ideas for bacterial detection, antimicrobial sterilization, and biological imaging.
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Affiliation(s)
- Shanliang Song
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University Changchun, 130012, PR China; College of Physics and Optoelectronic Engineering, Centre for AIE Research, School of Material Science and Engineering, Shenzhen University, Shenzhen, 518061, PR China
| | - Yue Zhao
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University Changchun, 130012, PR China
| | - Yang Li
- Center for Reproductive Medicine, Center for Prenatal Diagnosis, First Hospital, Jilin University, Changchun, 130021, Jilin, PR China
| | - Xudong Yang
- School of Chemical Engineering, Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, PR China.
| | - Dong Wang
- College of Physics and Optoelectronic Engineering, Centre for AIE Research, School of Material Science and Engineering, Shenzhen University, Shenzhen, 518061, PR China.
| | - Zhuoqi Wen
- Institute of New Energy Technology, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, PR China
| | - Minghui Yang
- Institute of New Energy Technology, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences, Ningbo, 315201, PR China.
| | - Quan Lin
- State Key Laboratory of Supramolecular Structure and Materials College of Chemistry, Jilin University Changchun, 130012, PR China.
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5
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Ortiz-Islas E, Manríquez-Ramírez ME, Sosa-Muñoz A, Almaguer P, Arias C, Guevara P, Hernández-Cortez G, Aguirre-Cruz ML. Preparation and characterisation of silica-based nanoparticles for cisplatin release on cancer brain cells. IET Nanobiotechnol 2020; 14:191-197. [PMID: 32338626 PMCID: PMC8676590 DOI: 10.1049/iet-nbt.2019.0239] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/09/2019] [Accepted: 12/05/2019] [Indexed: 12/15/2022] Open
Abstract
In the present work, the preparation, characterisation, and efficiency of two different silica nanostructures as release vehicles of Cisplatin are reported. The 1-hexadeciltrimethyl-ammonium bromide templating agent was used to obtain mesoporous silica nanoparticles which were later loaded with Cisplatin. While sol-gel silica was very fast prepared using an excess of acetic acid during the hydrolysis-condensation reactions of tetraethylorthosilicate and at the same time the Cisplatin was added. Several physicochemical techniques including spectroscopies, electronic microscopy, X-ray diffraction, N2 adsorption-desorption were used to characterise the silica nanostructures. An in vitro Cisplatin release test was carried out using artificial cerebrospinal fluid. Finally, the toxicity of all silica nanostructures was tested using the C6 cancer cell line. The spectroscopic results showed the suitable stabilisation of Cisplatin into the two different silica nanostructures. A large surface area was obtained for the mesoporous silica nanoparticles, while low areas were obtained in the silica nanoparticles. Cisplatin was released faster from mesoporous silica channels than from inside of aggregates nanoparticles silica. Cisplatin alone, as well as, cisplatin released from both silica nanostructures exerted a toxic effect on cancer cells. In contrast, both silica structures without the drug did not exert any toxic effect.
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Affiliation(s)
- Emma Ortiz-Islas
- Nanotechnology Laboratory, National Institute of Neurology and Neurosurgery, Insurgentes Sur 3877, La Fama, 14269 México City, Mexico.
| | - María Elena Manríquez-Ramírez
- ESIQIE-National Polytechnic Institute, Instituto Politécnico Nacional s/n, Col. Zacatenco, 07738 México City, Mexico
| | - Amarilis Sosa-Muñoz
- Nanotechnology Laboratory, National Institute of Neurology and Neurosurgery, Insurgentes Sur 3877, La Fama, 14269 México City, Mexico
| | - Paola Almaguer
- ESIQIE-National Polytechnic Institute, Instituto Politécnico Nacional s/n, Col. Zacatenco, 07738 México City, Mexico
| | - Carlos Arias
- ESIQIE-National Polytechnic Institute, Instituto Politécnico Nacional s/n, Col. Zacatenco, 07738 México City, Mexico
| | - Patricia Guevara
- Neuroimmunology Laboratory, National Institute of Neurology and Neurosurgery, Insurgentes Sur 3877, La Fama, 14269 México City, Mexico
| | - Gonzalo Hernández-Cortez
- Gerencia de materiales y productos químicos, Instituto Mexicano del Petróleo, Eje Lázaro Cárdenas 152, 07730 México City, Mexico
| | - Ma Lucinda Aguirre-Cruz
- Laboratory of Neuroimmunoendocrinology, National Institute of Neurology and Neurosurgery, Insurgentes Sur 3877, La Fama, 14269 México City, Mexico
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6
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Yang Q, Li L, Zhao F, Wang Y, Ye Z, Hua C, Liu Z, Bohinc K, Guo X. Spherical Polyelectrolyte Brushes as Templates to Prepare Hollow Silica Spheres Encapsulating Metal Nanoparticles. NANOMATERIALS 2020; 10:nano10040799. [PMID: 32326263 PMCID: PMC7221898 DOI: 10.3390/nano10040799] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/13/2020] [Accepted: 04/13/2020] [Indexed: 01/30/2023]
Abstract
Integrating hollow silica spheres with metal nanoparticles to fabricate multifunctional hybrid materials has attracted increasing attention in catalysis, detection, and drug delivery. Here, we report a simple and general method to prepare hollow silica spheres encapsulating silver nanoparticles (Ag@SiO2) based on spherical polyelectrolyte brushes (SPB), which consist of a polystyrene core and densely grafted poly (acrylic acid) (PAA) chains. SPB were firstly used as nanoreactors to generate silver nanoparticles in situ and then used as sacrificial templates to prepare hybrid hollow silica spheres. The resulted Ag@SiO2 composites exhibit high catalytic activity and good reusability for the reduction of 4-nitrophenol to 4-aminophenol by NaBH4. More importantly, this developed approach can be extended to the encapsulation of other metal nanoparticles such as gold nanoparticles into the hollow silica spheres. This work demonstrates that SPB are promising candidates for the preparation of hollow spheres with encapsulated metal nanoparticles and the resulted hybrid spheres show great potential applications in catalysis.
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Affiliation(s)
- Qingsong Yang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Q.Y.); (F.Z.); (Y.W.); (Z.Y.); (C.H.)
| | - Li Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Q.Y.); (F.Z.); (Y.W.); (Z.Y.); (C.H.)
- Correspondence: (L.L.); (X.G.); Tel.: +86-21-6425-3789 (L.L.); +86-21-6425-3491 (X.G.)
| | - Fang Zhao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Q.Y.); (F.Z.); (Y.W.); (Z.Y.); (C.H.)
| | - Yunwei Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Q.Y.); (F.Z.); (Y.W.); (Z.Y.); (C.H.)
| | - Zhishuang Ye
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Q.Y.); (F.Z.); (Y.W.); (Z.Y.); (C.H.)
| | - Chen Hua
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Q.Y.); (F.Z.); (Y.W.); (Z.Y.); (C.H.)
| | - Zhiyong Liu
- Engineering Research Center of Materials Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832000, Xinjiang, China;
| | - Klemen Bohinc
- Faculty of Health Sciences, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Xuhong Guo
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China; (Q.Y.); (F.Z.); (Y.W.); (Z.Y.); (C.H.)
- Engineering Research Center of Materials Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832000, Xinjiang, China;
- Correspondence: (L.L.); (X.G.); Tel.: +86-21-6425-3789 (L.L.); +86-21-6425-3491 (X.G.)
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7
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Zhao Y, Ni X, Ye S, Gu ZG, Li Y, Ngai T. A Smart Route for Encapsulating Pd Nanoparticles into a ZIF-8 Hollow Microsphere and Their Superior Catalytic Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2037-2043. [PMID: 32036667 DOI: 10.1021/acs.langmuir.9b03731] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The encapsulation of catalytically active noble metal nanoparticles (NM NPs) into metal-organic frameworks (MOFs) represents an effective strategy for enhancing their catalytic performance. Despite a myriad of reports on the nanocomposites consisting of NM NPs and MOFs, it remains challenging to develop a sustainable and convenient method for realizing confined integration of NM NPs within a porous and hollow zinc-based MOF. Herein, a simple and well-designed approach is reported to the fabrication of Pd@ZIF-8 hollow microspheres with a number of Pd nanoparticles immobilized on the inner surface. This method capitalized on the use of polyvinylpyrrolidone (PVP)-stabilized polystyrene (PS) microspheres as templates, to harness the dual functions of PVP for reducing PdCl2 to generate Pd NPs and coordinating with zinc ions to grow ZIF-8 shells. Consequently, it avoids the complicated protocols involving surface treatment of template microspheres that conventionally adopts hazardous or costly agents. The obtained Pd@ZIF-8 hollow microspheres exhibit outstanding catalytic activity, size selectivity, and stability in the hydrogenation of alkenes. This study presents both the advances in the green synthesis and great potential of Pd@ZIF-8 hollow microspheres for catalytic applications.
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Affiliation(s)
- Yaqian Zhao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Xinjiong Ni
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Sunjie Ye
- School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, U.K
| | - Zhi-Guo Gu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Yunxing Li
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin 9990077, N. T., Hong Kong
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Li Y, Wang Y, Ambreen J, Yang C, Ngai T. Synthesis of structured hollow microspheres with sandwich-like hybrid shell of RGO/Pd/m-SiO2 for highly efficient catalysis. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.05.059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Wang C, Hu T, Chen Y, Xu Y, Song Q. Polymer-Assisted Self-Assembly of Multicolor Carbon Dots as Solid-State Phosphors for Fabrication of Warm, High-Quality, and Temperature-Responsive White-Light-Emitting Devices. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22332-22338. [PMID: 31203602 DOI: 10.1021/acsami.9b04345] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
White-light-emitting devices (WLEDs) are considered to be a promising illumination source; especially, the WLEDs based on carbon dots (CDs) with white fluorescence have attracted extensive research interest. Herein, we report the design and implementation of solid white-light-emitting phosphors (WCDs@PS), which combine blue and orange emissive CDs (BCDs and OCDs) assisted by polystyrene (PS) through a self-assembly technique. Based on these phosphors (OCDs/BCDs = 1.2:1), the obtained WLEDs display a warm white light with International Commission on Illumination (CIE) coordinates of (0.35, 0.36), a high color rendering index of 93.2, a low correlated color temperature of 4075 K, and a luminous efficiency of up to 14.8 lm·W-1. Interestingly, these WLEDs exhibit temperature-dependent emission performance, whose light-emission spectrum can be adjusted in situ from white (λ ∼ 400-730 nm) to blue (λ ∼ 440 nm) in the range of 20-80 °C. A change in CIE coordinates from (0.35, 0.36) to (0.32, 0.23) was also observed. The temperature-driven tunable LEDs as a thermochromism device could broaden the application of CDs-based lighting systems in special displays.
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Affiliation(s)
- Chan Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministey of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical & Material Engineering , Jiangnan University , Wuxi 214122 , P. R. China
| | - Tantan Hu
- Key Laboratory of Synthetic and Biological Colloids, Ministey of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical & Material Engineering , Jiangnan University , Wuxi 214122 , P. R. China
| | - Yueyue Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministey of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical & Material Engineering , Jiangnan University , Wuxi 214122 , P. R. China
| | - Yalan Xu
- Key Laboratory of Synthetic and Biological Colloids, Ministey of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical & Material Engineering , Jiangnan University , Wuxi 214122 , P. R. China
| | - Qijun Song
- Key Laboratory of Synthetic and Biological Colloids, Ministey of Education, International Joint Research Center for Photoresponsive Molecules and Materials, School of Chemical & Material Engineering , Jiangnan University , Wuxi 214122 , P. R. China
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10
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Polymer/silica hybrid hollow nanoparticles with channels and thermo-responsive gatekeepers for drug storage and release. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4397-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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11
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Li B, Zeng HC. Formation Combined with Intercalation of Ni and Its Alloy Nanoparticles within Mesoporous Silica for Robust Catalytic Reactions. ACS APPLIED MATERIALS & INTERFACES 2018; 10:29435-29447. [PMID: 30089361 DOI: 10.1021/acsami.8b07896] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Intercalation of silica-supported nickel nanoparticles within mesoporous silica has been achieved through chemical reduction of nickel silicate with mesoporous silica ( mSiO2) coated on inner and outer surfaces. Formation of nickel nanoparticles was controlled at nickel silicate-silica interface and was well-confined by mSiO2 coating. Doping of other transition metals has been accomplished at the stage of nickel silicate formation, because of similarity in critical stability constants of respective metal salts. Doped nickel silicates were able to produce nickel-based bimetallic and trimetallic alloy nanoparticles within the final dual-shell configuration. This type of catalyst has been tested for both liquid- and gas-phase reactions, all showing good activity and selectivity. Ni nanoparticles could serve as the active catalyst or activity enhancer to other alloyed metals for different reactions. Especially for selective hydrogenation of trans-cinnamaldehyde, 100% selectivity toward hydrocinnamaldehyde at full conversion has been achieved without using noble metals. Spent catalysts in all cases showed no changes in terms of morphology and crystal structure, indicating this type of catalyst was robust under such reaction conditions, including gas-solid reaction systems.
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Affiliation(s)
- Bowen Li
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering , National University of Singapore , 10 Kent Ridge Crescent , 119260 Singapore
| | - Hua Chun Zeng
- Department of Chemical and Biomolecular Engineering, Faculty of Engineering , National University of Singapore , 10 Kent Ridge Crescent , 119260 Singapore
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12
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Wang LC, Cao YH. Adsorption behavior of phenanthrene on CTAB-modified polystyrene microspheres. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.05.088] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Hollow mesoporous silica nanotubes modified with palladium nanoparticles for environmental catalytic applications. J Colloid Interface Sci 2018; 521:132-140. [DOI: 10.1016/j.jcis.2018.03.041] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/11/2018] [Accepted: 03/13/2018] [Indexed: 11/27/2022]
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