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Abotaleb A, Al-Masri D, Alkhateb A, Mroue K, Zekri A, Mashhour Y, Sinopoli A. Assessing the effect of acid and alkali treatment on a halloysite-based catalyst for dry reforming of methane. RSC Adv 2024; 14:4788-4803. [PMID: 38318606 PMCID: PMC10840390 DOI: 10.1039/d3ra07990b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 01/19/2024] [Indexed: 02/07/2024] Open
Abstract
Dry reforming of methane (DRM) has recently received wide attention owing to its outstanding performance in the reduction and conversion of CH4 and CO2 to syngas (H2 and CO). From an industrial perspective, nickel (Ni)-supported catalysts have been deemed among the most suitable catalysts for DRM owing to their low cost and high activity compared to noble metals. However, a downside of nickel catalysts is their high susceptibility to deactivation due to coke formation and sintering at high temperatures. Using appropriate supports and preparation methods plays a major role in improving the activity and stability of Ni-supported catalysts. Halloysite nanotubes (HNTs) are largely utilized in catalysis as a support for Ni owing to their abundance, low cost, and ease of preparation. The treatment of HNTs (chemical or physical) prior to doping with Ni is considered a suitable method for increasing the overall performance of the catalyst. In this study, the surface of HNTs was activated with acids (HNO3 and H2SO4) and alkalis (NaOH and Na2CO3 + NaNO3) prior to Ni doping to assess the effects of support treatment on the stability, activity, and longevity of the catalyst. Nickel catalysts on raw HNT, acid-treated HNT, and alkali-treated HNT supports were prepared via wet impregnation. A detailed characterization of the catalysts was conducted using X-ray diffraction (XRD), BET surface area analysis, scanning electron microscopy (SEM), transmission electron microscopy (TEM), solid-state nuclear magnetic resonance (ssNMR), H2-temperature programmed reduction, (H2-TPR), CO2-temperature programmed desorption (CO2-TPD), and Ni-dispersion via H2-pulse chemisorption. Our results reveal a clear alteration in the structure of HNTs after treatment, while elemental mapping shows a uniform distribution of Ni throughout all the different supports. Moreover, the supports treated with a molten salt method resulted in the overall highest CO2 and CH4 conversion among the studied catalysts and exhibited high stability over 24 hours testing.
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Affiliation(s)
- Ahmed Abotaleb
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University P.O. Box 34110 Doha Qatar
| | - Dema Al-Masri
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University P.O. Box 34110 Doha Qatar
- Earthna Center for a Sustainable Future, Qatar Foundation Doha Qatar
| | - Alaa Alkhateb
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University P.O. Box 34110 Doha Qatar
| | - Kamal Mroue
- HBKU Core Labs, Hamad Bin Khalifa University P.O. Box 34110 Doha Qatar
| | - Atef Zekri
- HBKU Core Labs, Hamad Bin Khalifa University P.O. Box 34110 Doha Qatar
| | - Yasmin Mashhour
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University Doha P.O. Box 2713 Qatar
| | - Alessandro Sinopoli
- Qatar Environment and Energy Research Institute, Hamad Bin Khalifa University P.O. Box 34110 Doha Qatar
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Liu L, Liu YX, Zhong H, Li XR, Jun YL, Wang QL, Ding LS, Cheng ZP, Qian HY. Folic acid conjugated palygorskite/Au hybrid microgels: Temperature, pH and light triple-responsive and its application in drug delivery. Colloids Surf B Biointerfaces 2023; 229:113432. [PMID: 37422992 DOI: 10.1016/j.colsurfb.2023.113432] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/21/2023] [Accepted: 06/27/2023] [Indexed: 07/11/2023]
Abstract
Herein, folic acid conjugated poly (NIPAM-co-functional palygorskite-Au-co-acrylic acid) (FA-PNFA) hybrid microgels were fabricated by emulsion polymerization. The introduction of acrylic acid can increase the low critical solution temperature (LCST) of FA-PNFA from 36 °C at pH 5.5-42 °C at pH 7.4. Doxorubicin hydrochloride (DOX) was chosen as the load drug, the results show that the DOX release behavior is driven by temperature, pH and light. Cumulative drug release rate can reach 74 % at 37 °C and pH 5.5 while only 20 % at 37 °C and pH 7.4, which effectively avoided the early leakage of the drug. In addition, by exposing FA-PNFA hybrid microgels to laser irradiation, the cumulative release rate was increased by 5 % compared to the release rate under dark conditions. Functional palygorskite-Au as physical crosslinkers not only improves the drug loading content of microgels but also promotes the release of DOX through light drive. Methyl thiazolyl tetrazolium bromide (MTT) assay demonstrated that the FA-PNFA are nontoxic up to 200 μg mL-1 towards 4T1 breast cancer cell. Meanwhile, DOX-loaded FA-PNFA show more significant cytotoxicity than the free DOX. Confocal laser scanning microscope (CLSM) revealed that the DOX-loaded FA-PNFA could be efficiently taken by 4T1 breast cancer cells. FA-PNFA hybrid microgels not only improve the LCST of PNIPAM, but also endow the microgels with photostimulation responsiveness, which can release drugs in response to the triple stimulation response of temperature, pH and light, thus effectively reducing the activity of cancer cells, making them more promising for wider medical applications.
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Affiliation(s)
- Lei Liu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China; Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, PR China
| | - Yi-Xin Liu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, PR China
| | - Hui Zhong
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China; Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry & Chemical Engineering, Huaiyin Normal University, Huaian 223300, PR China.
| | - Xiao-Rong Li
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China.
| | - Ya-Li Jun
- Department of Central Laboratory, The Affiliated Huaian No.1 Peopele's Hospital, Nanjing Medical University, Huai'an 223300, PR China
| | - Qi-Long Wang
- Department of Central Laboratory, The Affiliated Huaian No.1 Peopele's Hospital, Nanjing Medical University, Huai'an 223300, PR China
| | - Lian-Shu Ding
- Department of Central Laboratory, The Affiliated Huaian No.1 Peopele's Hospital, Nanjing Medical University, Huai'an 223300, PR China
| | - Zhi-Peng Cheng
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China
| | - Hai-Yan Qian
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210000, PR China.
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Nickel Nanoparticles Anchored on Activated Attapulgite Clay for Ammonia Decomposition to Hydrogen. Symmetry (Basel) 2022. [DOI: 10.3390/sym14122627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Ammonia decomposition to hydrogen technique is an effectively way to solve the problems associated with the storage and transportation of hydrogen, but the development of a high-performance catalyst for ammonia decomposition is a great challenge. Ni species supported on activated attapulgite clay (AATP) is prepared by a homogeneous precipitation method for ammonia decomposition to COx-free H2. The structural properties of the Ni/AATP catalysts are characterized by thermogravimetric analysis, X-ray diffraction, scanning and transmission electron microscopy, H2 temperature-programmed reduction, and N2 sorption technique. It is revealed that the porous structure and high surface area of rod-like symmetric AATP results in highly dispersed NiO particles because the presence of a strong interaction between AATP and NiO particles. In particular, the Si-OH in AATP can react with Ni species, forming Si-O-Ni species at the interface between Ni and AATP. The Ni/AAPT catalysts are used for ammonia decomposition, the 20%-Ni/ATTP catalyst shows a 95.3% NH3 conversion with 31.9 mmol min−1 gcat−1 H2 formation rate at 650 °C. This study opens a new way to utilize natural minerals as an efficient support of catalysts towards ammonia decomposition reaction.
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Su P, Ge Y, Ma Y, Cheng H, Wang Z, Liu M. Preparation of Vermiculite‐based Molecular Sieve‐Supported Ni‐Co Alloy Catalyst Assisted by Oleic Acid and Application in Dry Reforming of Methane. ChemistrySelect 2022. [DOI: 10.1002/slct.202201812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Peng Su
- School of Chemistry and Chemical Engineering Shihezi University Shihezi Xinjiang 832003 P. R. China
| | - Yizhao Ge
- School of Chemistry and Chemical Engineering Shihezi University Shihezi Xinjiang 832003 P. R. China
| | - Yujie Ma
- School of Chemistry and Chemical Engineering Shihezi University Shihezi Xinjiang 832003 P. R. China
| | - Haifeng Cheng
- School of Chemistry and Chemical Engineering Shihezi University Shihezi Xinjiang 832003 P. R. China
| | - Zijun Wang
- School of Chemistry and Chemical Engineering Shihezi University, Shihezi Xinjiang 832003 P. R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Carbon Neutralization and Environmental Catalytic Technology Laboratory Shihezi Xinjiang 832003 P. R. China
| | - Minmin Liu
- School of Chemistry and Chemical Engineering Shihezi University, Shihezi Xinjiang 832003 P. R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan Carbon Neutralization and Environmental Catalytic Technology Laboratory Shihezi Xinjiang 832003 P. R. China
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Sun W, Xie S, Sun Y, Qiu X, Zhou J. Preparation of Mn/Zn@PG Catalyst for Catalytic Oxidation Treatment of Coal Chemical Wastewater. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10812. [PMID: 36078522 PMCID: PMC9518122 DOI: 10.3390/ijerph191710812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/24/2022] [Accepted: 08/27/2022] [Indexed: 06/15/2023]
Abstract
In this study, Mn/Zn@palygorskite (PG) catalysts with developed pores and good salt tolerance were prepared and applied to the treatment of coal chemical wastewater. A doping ratio of metal elements, calcination temperature, and calcination time was used to optimize the preparation conditions and determine the optimal preparation conditions of the Mn/Zn@PG catalysts. The catalysts, obtained under various preparation conditions, were characterized and analyzed by XRD, SEM, EDS, BET, XRF, XPS, and other techniques. Results showed that the Zn and Mn elements in the Mn/Zn@PG catalyst existed as ZnO and MnO2, respectively. The optimal working conditions of the Mn/Zn@PG catalyst for catalytic oxidation treatment of coal chemical wastewater, obtained through the optimization of working conditions, are the following: reaction time 60 min, wastewater pH = 9.28, ozone ventilation rate 0.2 L/min, catalyst filling ratio 20%. The height-to-diameter ratio of the tower was 6:1. The abrasion resistance and catalytic performance of the Mn/Zn@PG catalyst after repeated use were investigated, and the mechanism of the loss of active components of the Mn/Zn@PG catalyst was explored. The coal chemical wastewater, before and after treatment, was analyzed by UV-vis spectroscopy and 3D fluorescence spectroscopy. The hierarchical-principal component comprehensive evaluation system (AHP-PCA) was established to evaluate the catalytic ozonation process of coal chemical wastewater, so that the overall evaluation of the process performance can be achieved.
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Investigation of H2 production via an integrated pathway of consecutive CO oxidation and dry methane reforming in the presence of Co3O4@HNTs catalyst. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02510-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Dai H, Zhang A, Xiong S, Xiao X, Zhou C, Pan Y. The catalytic performance of Ga2O3‐CeO2 composite oxides over reverse water gas shift reaction. ChemCatChem 2022. [DOI: 10.1002/cctc.202200049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hui Dai
- Chengdu University of Technology College of Materials and Chemistry & Chemical Engineering Chenghua District, 610059 Chengdu CHINA
| | - Anhang Zhang
- Chengdu University of Technology College of Materials and Chemistry & Chemical Engineering CHINA
| | - Siqi Xiong
- Chengdu University of Technology College of Materials and Chemistry & Chemical Engineering CHINA
| | - Xin Xiao
- Sichuan University Department of Chemical Engineering CHINA
| | - Changjian Zhou
- Yancheng Institute of Technology School of Chemistry and Chemical Engineering CHINA
| | - Yi Pan
- National Institute of Measurement and Testing Technology Chemistry Research Division CHINA
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A Novel LaAlO3 Perovskite with Large Surface Area Supported Ni-Based Catalyst for Methane Dry Reforming. Catal Letters 2022. [DOI: 10.1007/s10562-021-03910-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dai H, Zhu Y, Xiong S, Xiao X, Huang L, Deng J, Zhou C. Dry Reforming of Methane over Ni/MgO@Al Catalysts with Unique Features of Sandwich Structure. ChemistrySelect 2021. [DOI: 10.1002/slct.202102788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hui Dai
- College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
- Department of Chemical Engineering Sichuan University Chengdu 610065 China
| | - Yongqing Zhu
- College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
| | - Siqi Xiong
- College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
| | - Xin Xiao
- Department of Chemical Engineering Sichuan University Chengdu 610065 China
| | - Lihong Huang
- College of Materials and Chemistry & Chemical Engineering Chengdu University of Technology Chengdu 610059 China
| | - Jie Deng
- College of Pharmacy and Bioengineering Chengdu University Chengdu 610106 China
| | - Changjian Zhou
- School of Chemistry and Chemical Engineering Yancheng Institute of Technology Yancheng Jiangsu Province 224051 China
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Chaisamphao J, Kiatphuengporn S, Faungnawakij K, Donphai W, Chareonpanich M. Effect of Modified Nanoclay Surface Supported Nickel Catalyst on Carbon Dioxide Reforming of Methane. Top Catal 2021. [DOI: 10.1007/s11244-020-01403-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhang S, Yang T, Yu J, Zhan W, Wang L, Guo Y, Guo Y. Robust nanosheet-assembled Al 2O 3-supported Ni catalysts for the dry reforming of methane: the effect of nickel content on the catalytic performance and carbon formation. NEW J CHEM 2021. [DOI: 10.1039/d1nj03954g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Nanosheet-assembled Al2O3 for loading Ni were successfully prepared. Enhancing Ni loading decreases the Ni dispersion and the interaction between Ni and support. 5%-Ni/(NA-Al2O3) catalyst possesses an excellent activity and coke resistance for dry reforming of methane.
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Affiliation(s)
- Shuangshuang Zhang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Tao Yang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Jun Yu
- Research Institute of Applied Catalysis, School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Wangcheng Zhan
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Li Wang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yun Guo
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
| | - Yanglong Guo
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China
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