1
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Wang X, Feng JH, Zeng CM, Zhang ZS, Cao FL, Zhang WH, Chen JX, Young DJ. [Fe IIICl(TMPPH 2)][Fe IIICl 4] 2: A Stand-Alone Molecular Nanomedicine That Induces High Cytotoxicity by Ferroptosis. Molecules 2024; 29:2495. [PMID: 38893373 PMCID: PMC11173869 DOI: 10.3390/molecules29112495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024] Open
Abstract
Developing clinically meaningful nanomedicines for cancer therapy requires the drugs to be effective, safe, simple, cheap, and easy to store. In the present work, we report that a simple cationic Fe(III)-rich salt of [FeIIICl(TMPPH2)][FeIIICl4]2 (Fe-TMPP) exhibits a superior anticancer performance on a broad spectrum of cancer cell lines, including breast, colorectal cancer, liver, pancreatic, prostate, and gastric cancers, with half maximal inhibitory concentration (IC50) values in the range of 0.098-3.97 μM (0.066-2.68 μg mL-1), comparable to the best-reported medicines. Fe-TMPP can form stand-alone nanoparticles in water without the need for extra surface modification or organic-solvent-assisted antisolvent precipitation. Critically, Fe-TMPP is TME-responsive (TME = tumor microenvironment), and can only elicit its function in the TME with overexpressed H2O2, converting H2O2 to the cytotoxic •OH to oxidize the phospholipid of the cancer cell membrane, causing ferroptosis, a programmed cell death process of cancer cells.
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Affiliation(s)
- Xiao Wang
- College of Chemistry, Chemical Engineering, and Materials Science, Soochow University, Suzhou 215123, China; (X.W.); (C.-M.Z.); (Z.-S.Z.); (F.-L.C.)
| | - Jia-Hao Feng
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China;
| | - Chun-Mei Zeng
- College of Chemistry, Chemical Engineering, and Materials Science, Soochow University, Suzhou 215123, China; (X.W.); (C.-M.Z.); (Z.-S.Z.); (F.-L.C.)
| | - Ze-Sheng Zhang
- College of Chemistry, Chemical Engineering, and Materials Science, Soochow University, Suzhou 215123, China; (X.W.); (C.-M.Z.); (Z.-S.Z.); (F.-L.C.)
| | - Feng-Lin Cao
- College of Chemistry, Chemical Engineering, and Materials Science, Soochow University, Suzhou 215123, China; (X.W.); (C.-M.Z.); (Z.-S.Z.); (F.-L.C.)
| | - Wen-Hua Zhang
- College of Chemistry, Chemical Engineering, and Materials Science, Soochow University, Suzhou 215123, China; (X.W.); (C.-M.Z.); (Z.-S.Z.); (F.-L.C.)
| | - Jin-Xiang Chen
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China;
| | - David J. Young
- Glasgow College UESTC, University of Electronic Science and Technology of China, Chengdu 611731, China;
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2
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Yuan W, Jiao K, Yuan H, Sun H, Lim EG, Mitrovic I, Duan S, Cong S, Yong R, Li F, Song P. Metal-Organic Frameworks/Heterojunction Structures for Surface-Enhanced Raman Scattering with Enhanced Sensitivity and Tailorability. ACS APPLIED MATERIALS & INTERFACES 2024; 16:26374-26385. [PMID: 38716706 PMCID: PMC11129117 DOI: 10.1021/acsami.4c01588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 05/24/2024]
Abstract
Metal-organic frameworks (MOFs), which are composed of crystalline microporous materials with metal ions, have gained considerable interest as promising substrate materials for surface-enhanced Raman scattering (SERS) detection via charge transfer. Research on MOF-based SERS substrates has advanced rapidly because of the MOFs' excellent structural tunability, functionalizable pore interiors, and ultrahigh surface-to-volume ratios. Compared with traditional noble metal SERS plasmons, MOFs exhibit better biocompatibility, ease of operation, and tailorability. However, MOFs cannot produce a sufficient limit of detection (LOD) for ultrasensitive detection, and therefore, developing an ultrasensitive MOF-based SERS substrate is imperative. To the best of our knowledge, this is the first study to develop an MOFs/heterojunction structure as an SERS enhancing material. We report an in situ ZIF-67/Co(OH)2 heterojunction-based nanocellulose paper (nanopaper) plate (in situ ZIF-67 nanoplate) as a device with an LOD of 0.98 nmol/L for Rhodamine 6G and a Raman enhancement of 1.43 × 107, which is 100 times better than that of the pure ZIF-67-based SERS substrate. Further, we extend this structure to other types of MOFs and develop an in situ HKUST-1 nanoplate (with HKUST-1/Cu(OH)2). In addition, we demonstrate that the formation of heterojunctions facilitates efficient photoinduced charge transfer for SERS detection by applying the Mx(OH)y-assisted (where M = Co, Cu, or other metals) MOFs/heterojunction structure. Finally, we successfully demonstrate the application of medicine screening on our nanoplates, specifically for omeprazole. The nanoplates we developed still maintain the tailorability of MOFs and perform high anti-interference ability. Our approach provides customizing options for MOF-based SERS detection, catering to diverse possibilities in future research and applications.
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Affiliation(s)
- Wenwen Yuan
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
- State
Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Keran Jiao
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
| | - Hang Yuan
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
| | - Hongzhao Sun
- School
of Physical Science and Technology, Suzhou
University of Science and Technology, Suzhou 215009, China
| | - Eng Gee Lim
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
| | - Ivona Mitrovic
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
| | - Sixuan Duan
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
- Key
Laboratory of Bionic Engineering, Jilin
University, Changchun 130022, China
| | - Shan Cong
- School of
Nano-Tech and Nano-Bionics, University of
Science and Technology of China, Suzhou 215123, China
| | - Ruiqi Yong
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
| | - Feifan Li
- School of
Nano-Tech and Nano-Bionics, University of
Science and Technology of China, Suzhou 215123, China
| | - Pengfei Song
- School
of Advanced Technology, Xi’an Jiaotong
- Liverpool University, Suzhou 215123, China
- Department
of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 7ZX, U.K.
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3
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Zeng CM, Luo SY, Wang X, Cao FL, Zhang ZS, Zhang WH, Dai CL, Young DJ. A Porphyrin-Based 3D Metal-Organic Framework Featuring [Cu 8Cl 6] 10+ Cluster Secondary Building Units: Synthesis, Structure Elucidation, Anion Exchange, and Peroxidase-Like Activity. Chem Asian J 2024; 19:e202400237. [PMID: 38563626 DOI: 10.1002/asia.202400237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/04/2024]
Abstract
Herein, we report a rare example of cationic three-dimensional (3D) metal-organic framework (MOF) of [Cu5Cl3(TMPP)]Cl5 ⋅ xSol (denoted as Cu-TMPP; H2TMPP=meso-tetrakis (6-methylpyridin-3-yl) porphyrin; xSol=encapsulated solvates) supported by [Cu8Cl6]10+ cluster secondary building units (SBUs) wherein the eight faces of the Cl--based octahedron are capped by eight Cu2+. Surface-area analysis indicated that Cu-TMPP features a mesoporous structure and its solvate-like Cl- counterions can be exchanged by BF4 -, PF6 -, and NO3 -. The polyvinylpyrrolidone (PVP) coated Cu-TMPP (denoted as Cu-TMPP-PVP) demonstrated good ROS generating ability, producing ⋅OH in the absence of light (peroxidase-like activity) and 1O2 on light irradiation (650 nm; 25 mW cm-2). This work highlights the potential of Cu-TMPP as a functional carrier of anionic guests such as drugs, for the combination therapy of cancer and other diseases.
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Affiliation(s)
- Chun-Mei Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Song-Yu Luo
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xiao Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Feng-Lin Cao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Ze-Sheng Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Wen-Hua Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Chun-Lei Dai
- Department of Cardiothoracic Surgery, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Suzhou, 215002, China
| | - David J Young
- Glasgow College UESTC, University of Electronic Science and Technology of China, Chengdu, 611731, China
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4
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Xu S, Zhang H, Li Y, Liu J, Li R, Xing Y. Thermoreversible and tunable supramolecular hydrogels based on chitosan and metal cations. Int J Biol Macromol 2023; 242:124906. [PMID: 37210055 DOI: 10.1016/j.ijbiomac.2023.124906] [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: 02/06/2023] [Revised: 04/24/2023] [Accepted: 05/13/2023] [Indexed: 05/22/2023]
Abstract
A new thermoreversible and tunable hydrogel CS-M with high water content prepared by metal cation (M = Cu2+, Zn2+, Cd2+ and Ni2+) and chitosan (CS) was reported. The influence of metal cations on the thermosensitive gelation of CS-M systems were studied. All prepared CS-M systems were in the transparent and stable sol state and could become the gel state at gelation temperature (Tg). These systems after gelation could recover to its original sol state at low temperature. CS-Cu hydrogel was mainly investigated and characterized due to its large Tg scale (32-80 °C), appropriate pH range (4.0-4.6) and low Cu2+ concentration. The result showed that the Tg range was influenced and could be tuned by adjusting Cu2+ concentration and system pH within an appropriate range. The influence of anions (Cl-, NO3- and Ac-) in cupric salts in the CS-Cu system was also investigated. Scale application as heat insulation window was investigated outdoors. The different supramolecular interactions of the -NH2 group in chitosan at different temperatures were proposed to dominate the thermoreversible process of CS-Cu hydrogel.
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Affiliation(s)
- Shikuan Xu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Hongmei Zhang
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Yiwen Li
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Jingjing Liu
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Rong Li
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
| | - Yanjun Xing
- College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China.
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5
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Purification of Hydrogen from CO with Cu/ZSM-5 Adsorbents. MOLECULES (BASEL, SWITZERLAND) 2021; 27:molecules27010096. [PMID: 35011328 PMCID: PMC8746636 DOI: 10.3390/molecules27010096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/19/2021] [Accepted: 12/22/2021] [Indexed: 11/26/2022]
Abstract
The transition to a hydrogen economy requires the development of cost-effective methods for purifying hydrogen from CO. In this study, we explore the possibilities of Cu/ZSM-5 as an adsorbent for this purpose. Samples obtained by cation exchange from aqueous solution (AE) and solid-state exchange with CuCl (SE) were characterized by in situ EPR and FTIR, H2-TPR, CO-TPD, etc. The AE samples possess mainly isolated Cu2+ cations not adsorbing CO. Reduction generates Cu+ sites demonstrating different affinity to CO, with the strongest centres desorbing CO at about 350 °C. The SE samples have about twice higher Cu/Al ratios, as one H+ is exchanged with one Cu+ cation. Although some of the introduced Cu+ sites are oxidized to Cu2+ upon contact with air, they easily recover their original oxidation state after thermal treatment in vacuum or under inert gas stream. In addition, these Cu+ centres regenerate at relatively low temperatures. It is important that water does not block the CO adsorption sites because of the formation of Cu+(CO)(H2O)x complexes. Dynamic adsorption studies show that Cu/ZSM-5 selectively adsorbs CO in the presence of hydrogen. The results indicate that the SE samples are very perspective materials for purification of H2 from CO.
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6
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Cui Y, Ding Y, Molina SEV, Li Y. A mixed-valence CuII/CuI coordination polymer based on bridged thiocyanate and in situ formed di(N-heterocyclic) sulfide: Synthesis, structure, and magnetic properties. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Yang HR, Li SS, Yang C, An QD, Zhai SR, Xiao ZY. Bi-layered hollow amphoteric composites: Rational construction and ultra-efficient sorption performance for anionic Cr(VI) and cationic Cu(II) ions. J Colloid Interface Sci 2021; 607:556-567. [PMID: 34520903 DOI: 10.1016/j.jcis.2021.08.197] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/27/2021] [Accepted: 08/29/2021] [Indexed: 12/17/2022]
Abstract
Here, we have developed a novel bilayer hollow amphiphilic biosorbent (BHAB-3) with large adsorption capacity, rapid adsorption kinetics, and cost-effective for the removal of Cr(VI) and Cu(II) from aqueous solutions. The synthesis was based on the clever use of freeze-drying to fix the structure, secondary modification of the carboxymethyl cellulose microspheres with polyethyleneimine and cross-linking by glutaraldehyde. The consequences of pH, initial concentration, contact time and temperature on adsorption were investigated. The Langmuir model fits showed that the maximum adsorption capacities of the two target heavy metal ions reached 835.91 and 294.79 mg/g, respectively. Moreover, BHAB-3 was characterized by SEM, FT-IR, TGA, and XPS synergistically, showing that it exhibits a strong complexation ability for Cu(II) and a strong electrostatic effect for Cr(VI). Adsorption and desorption experiments showed only a slight decrease in the adsorption capacity of the BHAB-3 for Cr(VI) and Cu(II) ions after 5 and 26 cycles, respectively. Given the excellent properties of this adsorbent, it is a promising candidate for heavy metal ion removal.
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Affiliation(s)
- Hua-Rong Yang
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Shan-Shan Li
- Jinxi Research Institute of Chemical Industry Company Limited, Huludao 125000, China
| | - Chen Yang
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Qing-Da An
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Shang-Ru Zhai
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Zuo-Yi Xiao
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
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8
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O. P F, Kumari P, P A. Effect of copper on textural and acidic properties of hierarchical nanocrystalline ZSM‐5. ASIA-PAC J CHEM ENG 2020. [DOI: 10.1002/apj.2547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Farsana O. P
- Department of Chemistry Pocker Sahib Memorial Orphanage College Tirurangadi Kerala 676306 India
| | - Prajitha Kumari
- Department of Chemistry Pocker Sahib Memorial Orphanage College Tirurangadi Kerala 676306 India
| | - Aneesh P
- Department of Chemistry St. Joseph's College (Autonomous) Devagiri Kozhikode Kerala 673008 India
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9
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Costa ER, Andrade FCD, de Albuquerque DY, Ferreira LEM, Lima TM, Lima CGS, Silva DSA, Urquieta-González EA, Paixão MW, Schwab RS. Greener synthesis of 1,2,3-triazoles using a copper(i)-exchanged magnetically recoverable β-zeolite as catalyst. NEW J CHEM 2020. [DOI: 10.1039/d0nj02473b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A novel magnetically recoverable Cu(i)-exchanged β-zeolite catalyst was prepared, characterized and applied for the synthesis of 1,2,3-triazoles via the one-pot three-component reaction.
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Affiliation(s)
- Elizama R. Costa
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Departamento de Química
- Universidade Federal de São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
| | - Floyd C. D. Andrade
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Departamento de Química
- Universidade Federal de São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
| | - Danilo Yano de Albuquerque
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Departamento de Química
- Universidade Federal de São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
| | | | - Thiago M. Lima
- Departamento de Química Inorgânica
- Universidade Federal Fluminense
- Niterói-RJ
- Brazil
| | - Carolina G. S. Lima
- Departamento de Química Orgânica
- Universidade Federal Fluminense
- Niterói-RJ
- Brazil
| | - Domingos S. A. Silva
- Research Center on Advanced Materials and Energy
- Universidade Federal de São Carlos (DEQ)
- São Carlos
- Brazil
| | | | - Márcio W. Paixão
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Departamento de Química
- Universidade Federal de São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
| | - Ricardo S. Schwab
- Centre of Excellence for Research in Sustainable Chemistry (CERSusChem)
- Departamento de Química
- Universidade Federal de São Carlos – UFSCar
- Rodovia Washington Luís
- São Carlos
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10
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Zhang J, Liu F, Liang J, Yu H, Liu W, Wang X, Peng H, Wu P. Exploring the Nanosize Effect of Mordenite Zeolites on Their Performance in the Removal of NOx. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00353] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jingyan Zhang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Fuyan Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Jian Liang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Hui Yu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Wenming Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Xiang Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Honggen Peng
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry, Nanchang University, 999 Xuefu Road, Nanchang, Jiangxi 330031, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Road 3663, Shanghai 200062, China
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11
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Enhanced stability of HZSM-5 supported copper oxides by Na doping for catalytic combustion of propene. CATAL COMMUN 2019. [DOI: 10.1016/j.catcom.2019.01.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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12
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Lin Q, Liu J, Liu S, Xu S, Lin C, Feng X, Wang Y, Xu H, Chen Y. Barium-promoted hydrothermal stability of monolithic Cu/BEA catalyst for NH 3-SCR. Dalton Trans 2018; 47:15038-15048. [PMID: 30303233 DOI: 10.1039/c8dt03156h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As a promising candidate for NOx elimination from the emission of diesel engines, the enhancement effect of Ba on the hydrothermal stability of cordierite supported CuBa/BEA at 600 °C for 48 h was investigated by XRD, NH3-TPD, H2-TPR, XPS, EPR, TEM and in situ DRIFTS. Different properties and amounts of active species are significant factors contributing to the enhanced hydrothermal stability of CuBa/BEA-HT. CuBa/BEA-HT has more Cu2+/Cu+ redox-couples and stronger interactions than Cu/BEA-HT, indicating an excellent redox property of the active species in CuBa/BEA-HT. The better redox property of CuBa/BEA-HT produces more nitrates that easily participate in the NH3-SCR reaction, which enhances the low-temperature activity. Furthermore, as observed from EPR and H2-TPR, the appearance of more isolated Cu2+ species and fewer CuO species also contribute to the higher hydrothermal stability of CuBa/BEA-HT.
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Affiliation(s)
- Qingjin Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
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13
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Yuan W, Zhang C, Wei H, Wang Q, Li K. In situ synthesis and immobilization of a Cu(ii)–pyridyl complex on silica microspheres as a novel Fenton-like catalyst for RhB degradation at near-neutral pH. RSC Adv 2017. [DOI: 10.1039/c7ra02916k] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A Cu(ii)–pyridyl complex was in situ synthesized and immobilized onto silica microspheres as a highly effective Fenton-like catalyst at near-neutral pH.
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Affiliation(s)
- Wenhua Yuan
- College of Chemistry & Material Science
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry
- Ministry of Education
- Northwest University
- Xi'an 710127
| | - Chaoying Zhang
- College of Chemistry & Material Science
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry
- Ministry of Education
- Northwest University
- Xi'an 710127
| | - Hong Wei
- State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Areas
- Xi'an University of Technology
- Xi'an 710048
- PR China
| | - Qinqin Wang
- College of Chemistry & Material Science
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry
- Ministry of Education
- Northwest University
- Xi'an 710127
| | - Kebin Li
- College of Chemistry & Material Science
- Key Laboratory of Synthetic and Natural Function Molecule Chemistry
- Ministry of Education
- Northwest University
- Xi'an 710127
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14
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Ahmed A, Robertson CM, Steiner A, Whittles T, Ho A, Dhanak V, Zhang H. Cu(i)Cu(ii)BTC, a microporous mixed-valence MOF via reduction of HKUST-1. RSC Adv 2016. [DOI: 10.1039/c5ra23754h] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A microporous mixed-valence Cu(i,ii)–BTC MOF is produced and exhibits two crystalline environments, bi-modal micropores, and superior water stability.
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Affiliation(s)
- Adham Ahmed
- Department of Chemistry
- University of Liverpool
- Liverpool
- UK
| | | | | | - Thomas Whittles
- Stephenson Institute for Renewable Energy
- University of Liverpool
- Liverpool
- UK
| | - Alexandra Ho
- Department of Chemistry
- University of Liverpool
- Liverpool
- UK
| | - Vinod Dhanak
- Stephenson Institute for Renewable Energy
- University of Liverpool
- Liverpool
- UK
| | - Haifei Zhang
- Department of Chemistry
- University of Liverpool
- Liverpool
- UK
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15
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16
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Palomaki PKB, Krawicz A, Dinolfo PH. Thickness, surface morphology, and optical properties of porphyrin multilayer thin films assembled on Si(100) using copper(I)-catalyzed azide-alkyne cycloaddition. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:4613-4622. [PMID: 21410232 DOI: 10.1021/la104499b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report the structure, optical properties and surface morphology of Si(100) supported molecular multilayers resulting from a layer-by-layer (LbL) fabrication method utilizing copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC), also known as "click" chemistry. Molecular based multilayer films comprised of 5,10,15,20-tetra(4-ethynylphenyl)porphyrinzinc(II) (1) and either 1,3,5-tris(azidomethyl)benzene (2) or 4,4'-diazido-2,2'-stilbenedisulfonic acid disodium salt (3) as a linker layer, displayed linear growth properties up to 19 bilayers. With a high degree of linearity, specular X-ray reflectivity (XRR) measurements yield an average thickness of 1.87 nm/bilayer for multilayers of 1 and 2 and 2.41 nm/bilayer for multilayers of 1 and 3. Surface roughnesses as determined by XRR data fitting were found to increase with the number of layers and generally were around 12% of the film thickness. Tapping mode AFM measurements confirm the continuous nature of the thin films with roughness values slightly larger than those determined from XRR. Spectroscopic ellipsometry measurements utilizing a Cauchy model mirror the XRR data for multilayer growth but with a slightly higher thickness per bilayer. Modeling of the ellipsometric data over the full visible region using an oscillator model produces an absorption profile closely resembling that of a multilayer grown on silica glass. Comparing intramolecular distances from DFT modeling with experimental film thicknesses, the average molecular growth angles were estimated between 40° and 70° with respect to the substrate surface depending on the bonding configuration.
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Affiliation(s)
- Peter K B Palomaki
- Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180, USA
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Milanesio M, Croce G, Viterbo D, Pastore HO, Mascarenhas AJDS, Munsignatti ECDO, Meda L. A Combined High-Resolution X-ray Powder Diffraction, Computational, and XPS Study of the Local Structure of Extra-Framework Copper Ions in Over-Exchanged Cu-MCM22 Zeolite. J Phys Chem A 2008; 112:8403-10. [DOI: 10.1021/jp803619r] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Marco Milanesio
- Dipartimento di Scienze e Tecnologie Avanzate and Nano-SiSTeMI
Interdisciplinary Centre, Università del Piemonte Orientale
“A. Avogadro”, Via Bellini 25/G, 15100 Alessandria,
Italy, Instituto de Química, Universidade Estadual de Campinas,
CP 6154, CEP 13084−971, Campinas, SP, Brazil, and Nano-SiSTeMI
Interdisciplinary Centre and Instituto ENI Donegani via Fauser 4,
28066 Novara, Italy
| | - Gianluca Croce
- Dipartimento di Scienze e Tecnologie Avanzate and Nano-SiSTeMI
Interdisciplinary Centre, Università del Piemonte Orientale
“A. Avogadro”, Via Bellini 25/G, 15100 Alessandria,
Italy, Instituto de Química, Universidade Estadual de Campinas,
CP 6154, CEP 13084−971, Campinas, SP, Brazil, and Nano-SiSTeMI
Interdisciplinary Centre and Instituto ENI Donegani via Fauser 4,
28066 Novara, Italy
| | - Davide Viterbo
- Dipartimento di Scienze e Tecnologie Avanzate and Nano-SiSTeMI
Interdisciplinary Centre, Università del Piemonte Orientale
“A. Avogadro”, Via Bellini 25/G, 15100 Alessandria,
Italy, Instituto de Química, Universidade Estadual de Campinas,
CP 6154, CEP 13084−971, Campinas, SP, Brazil, and Nano-SiSTeMI
Interdisciplinary Centre and Instituto ENI Donegani via Fauser 4,
28066 Novara, Italy
| | - Heloise O. Pastore
- Dipartimento di Scienze e Tecnologie Avanzate and Nano-SiSTeMI
Interdisciplinary Centre, Università del Piemonte Orientale
“A. Avogadro”, Via Bellini 25/G, 15100 Alessandria,
Italy, Instituto de Química, Universidade Estadual de Campinas,
CP 6154, CEP 13084−971, Campinas, SP, Brazil, and Nano-SiSTeMI
Interdisciplinary Centre and Instituto ENI Donegani via Fauser 4,
28066 Novara, Italy
| | - Artur J. dos Santos Mascarenhas
- Dipartimento di Scienze e Tecnologie Avanzate and Nano-SiSTeMI
Interdisciplinary Centre, Università del Piemonte Orientale
“A. Avogadro”, Via Bellini 25/G, 15100 Alessandria,
Italy, Instituto de Química, Universidade Estadual de Campinas,
CP 6154, CEP 13084−971, Campinas, SP, Brazil, and Nano-SiSTeMI
Interdisciplinary Centre and Instituto ENI Donegani via Fauser 4,
28066 Novara, Italy
| | - Erica C. de Oliveira Munsignatti
- Dipartimento di Scienze e Tecnologie Avanzate and Nano-SiSTeMI
Interdisciplinary Centre, Università del Piemonte Orientale
“A. Avogadro”, Via Bellini 25/G, 15100 Alessandria,
Italy, Instituto de Química, Universidade Estadual de Campinas,
CP 6154, CEP 13084−971, Campinas, SP, Brazil, and Nano-SiSTeMI
Interdisciplinary Centre and Instituto ENI Donegani via Fauser 4,
28066 Novara, Italy
| | - Laura Meda
- Dipartimento di Scienze e Tecnologie Avanzate and Nano-SiSTeMI
Interdisciplinary Centre, Università del Piemonte Orientale
“A. Avogadro”, Via Bellini 25/G, 15100 Alessandria,
Italy, Instituto de Química, Universidade Estadual de Campinas,
CP 6154, CEP 13084−971, Campinas, SP, Brazil, and Nano-SiSTeMI
Interdisciplinary Centre and Instituto ENI Donegani via Fauser 4,
28066 Novara, Italy
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Hasan S, Ghosh TK, Viswanath DS, Boddu VM. Dispersion of chitosan on perlite for enhancement of copper(II) adsorption capacity. JOURNAL OF HAZARDOUS MATERIALS 2008; 152:826-37. [PMID: 17850957 DOI: 10.1016/j.jhazmat.2007.07.078] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2007] [Revised: 07/17/2007] [Accepted: 07/18/2007] [Indexed: 05/17/2023]
Abstract
Chitosan coated perlite beads were prepared by drop-wise addition of slurry, made of chitosan dissolved in oxalic acid and perlite, to an alkaline bath (0.7 M NaOH). The beads that contained 32% chitosan enhanced the accessibility of OH and amine groups present in chitosan for adsorption of copper ions. The experiments using Cu(II) ions were carried out in the concentration range of 50-4100 mg/L (0.78-64.1 mmol/L). Adsorption capacity for Cu(II) was pH dependent and a maximum uptake of 104 mg/g of beads (325 mg/g of chitosan) was obtained at pH 4.5 when its equilibrium concentration in the solution was 812.5 mg/L at 298 K. The XPS and TEM data suggested that copper was mainly adsorbed as Cu(II) and was attached to amine groups. The adsorption data could be fitted to one-site Langmuir adsorption model. Anions in the solution had minimal effect on Cu(II) adsorption by chitosan coated perlite beads. EDTA was used effectively for the regeneration of the bed. The diffusion coefficient of Cu(II) onto chitosan coated beads was calculated from the breakthrough curve and was found to be 2.02 x 10(-8) cm(2)/s.
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Affiliation(s)
- Shameem Hasan
- Nuclear Science and Engineering Institute, University of Missouri-Columbia, Columbia, MO 65211, USA
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Ciampi S, Böcking T, Kilian KA, James M, Harper JB, Gooding JJ. Functionalization of acetylene-terminated monolayers on Si(100) surfaces: a click chemistry approach. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:9320-9. [PMID: 17655337 DOI: 10.1021/la701035g] [Citation(s) in RCA: 174] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
In this article, we report the functionalization of alkyne-terminated alkyl monolayers on Si(100) using "click" chemistry, specifically, the Cu(I)-catalyzed Huisgen 1,3-dipolar cycloaddition reaction of azides with surface-bound alkynes. Covalently immobilized, structurally well-defined acetylene-terminated organic monolayers were prepared from a commercially available terminal diyne species using a one-step hydrosilylation procedure. Subsequent derivatization of the alkyne-terminated monolayers in aqueous environments with representative azide species via a selective, reliable, robust cycloaddition process afforded disubstituted surface-bound [1,2,3]-triazole species. Neither activation procedures nor protection/deprotection steps were required, as is the case with more established grafting approaches for silicon surfaces. Detailed characterization using X-ray photoelectron spectroscopy and X-ray reflectometry demonstrated that the surface acetylenes had reacted in moderate to high yield to give surfaces exposing alkyl chains, oligoether anti-fouling moieties, and functionalized aromatic structures. These results demonstrate that click immobilization offers a versatile, experimentally simple, chemically unambiguous modular approach to producing modified silicon surfaces with organic functionality for applications as diverse as biosensors and molecular electronics.
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Affiliation(s)
- Simone Ciampi
- School of Chemistry, The University of New South Wales, Sydney, NSW, Australia
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