1
|
Li H, Cheng Y, Li J, Li T, Zhu J, Deng W, Zhu J, He D. Preparation and Adsorption Performance Study of Graphene Quantum Dots@ZIF-8 Composites for Highly Efficient Removal of Volatile Organic Compounds. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4008. [PMID: 36432294 PMCID: PMC9695402 DOI: 10.3390/nano12224008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/06/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Based on the large specific surface area and excellent adsorption potential of graphene quantum dots (GQDs) and zeolitic imidazolate framework-8 (ZIF-8) materials, a GQDs@ZIF-8 composite was constructed to achieve optimal matching of the microstructure and to acquire efficient adsorption of volatile organic compounds (VOCs). GQDs and ZIF-8 were synthesized and then compounded by the solution co-deposition method to obtain GQDs@ZIF-8 composites. GQDs were uniformly decorated on the surface of the ZIF-8 metal-organic framework (MOF), effectively restraining the agglomeration, improving the thermal stability of ZIF-8 and forming abundant active sites. Thus, the VOC removal percentage and adsorption capacity of the GQDs@ZIF-8 composites were significantly improved. Toluene and ethyl acetate were chosen as simulated VOC pollutants to test the adsorption performance of the composites. The results showed that, after the addition of GQDs, the adsorption property of GQDs@ZIF-8 composites for toluene and ethyl acetate was obviously improved, with maximum adsorption capacities of 552.31 mg/g and 1408.59 mg/g, respectively, and maximum removal percentages of 80.25% and 93.78%, respectively, revealing extremely high adsorption performance. Compared with raw ZIF-8, the maximum adsorption capacities of the composites for toluene and ethyl acetate were increased by 53.82 mg/g and 104.56 mg/g, respectively. The kinetics and isotherm study revealed that the adsorption processes were in accordance with the pseudo-first-order kinetic model and the Freundlich isotherm model. The thermodynamic results indicated that the adsorption process of the GQDs@ZIF-8 composites was a spontaneous, endothermic and entropy increase process. This study provides a new way to explore MOF-based adsorption materials with high adsorption capacity which have broad application prospects in VOC removal fields.
Collapse
Affiliation(s)
- Hao Li
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Youliang Cheng
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China
| | - Jiaxian Li
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China
| | - Tiehu Li
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jia Zhu
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi’an University of Technology, Xi’an 710048, China
| | - Weibin Deng
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jiajia Zhu
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Delong He
- Laboratoire de Mécanique Paris-Saclay, Université Paris-Saclay, CentraleSupélec, ENS Paris-Saclay, CNRS, 91190 Gif-sur-Yvette, France
| |
Collapse
|
2
|
Yu S, Wang X, Liu F, Xiao K, Kang C. Adsorption of acetone, ethyl acetate and toluene by beta zeolite/diatomite composites: preparation, characterization and adsorbability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:80646-80656. [PMID: 35723824 DOI: 10.1007/s11356-022-21308-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
The hierarchical porous composites (Beta/Dt) were prepared by secondary growth method using natural diatomite and beta zeolite. Moreover, XRD, SEM, and BET characterize the composite's composition, surface structure, and pore structure. The adsorbability of Beta/Dt was evaluated by adsorption of three common volatile organic compounds (VOCs) of the printing industry: acetone, ethyl acetate, and toluene. The results show that under the optimum preparation condition, the adsorption capacities of the three VOCs on Beta/Dt were about 3.5 times those of pure beta zeolite and 4.7-35.3 times those of diatomite, respectively. It indicates the synergistic adsorption effect between beta zeolite and diatomite. The superior adsorption capacity of Beta/Dt can be attributed to the suitable micropore size, the increase of the diffusion channels, and the chemical adsorption on modification diatomite. The adsorption of acetone, ethyl acetate, and toluene on Beta/Dt conformed to the pseudo-second-order kinetic model. In contrast, adsorption isotherms conformed to the Langmuir model, meaning that both physical and chemical adsorption occurred simultaneously during the adsorption process, and the adsorption belonged to the monolayer adsorption. The chemical adsorption mechanism can be ascribed to the nucleophilic reaction between the three VOCs (acetone, ethyl acetate, and toluene) and Beta/Dt with positive charges resulting from the modification diatomite. Furthermore, the composite could still keep more than 90% of the adsorption capacity of the original adsorbent after five regeneration cycles.
Collapse
Affiliation(s)
- Shuyi Yu
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China
- College of New Energy and Environment, Jilin University, Changchun, 130012, China
| | - Xiaoyu Wang
- College of New Energy and Environment, Jilin University, Changchun, 130012, China
| | - Fang Liu
- College of New Energy and Environment, Jilin University, Changchun, 130012, China
| | - Kunkun Xiao
- College of New Energy and Environment, Jilin University, Changchun, 130012, China
| | - Chunli Kang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China.
- College of New Energy and Environment, Jilin University, Changchun, 130012, China.
| |
Collapse
|
3
|
Wang X, Cheng H, Ye G, Fan J, Yao F, Wang Y, Jiao Y, Zhu W, Huang H, Ye D. Key factors and primary modification methods of activated carbon and their application in adsorption of carbon-based gases: A review. CHEMOSPHERE 2022; 287:131995. [PMID: 34509016 DOI: 10.1016/j.chemosphere.2021.131995] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 07/26/2021] [Accepted: 08/22/2021] [Indexed: 06/13/2023]
Abstract
To achieve carbon neutrality, it is necessary to control carbon-based gas emissions to the atmosphere. Among the various carbon-based gas removal technologies reported to date, adsorption is considered one of the most promising because of its economic efficiency, reusability, and low energy consumption. Activated carbon is widely used to treat different types of carbon-based gases owing to its large specific surface area, abundant functional groups, and strong adsorption capacity. This paper reviews the recent research progress into activated carbon as an adsorbent for carbon-based gases. The key factors (i.e., specific surface area, pore structure, and surface functional groups) affecting the adsorption of carbon-based gases by activated carbon were analyzed. The main methods employed to modify activated carbon (i.e., surface oxidation, surface reduction, loading materials, and plasma modification methods) to improve its adsorption capacity are also discussed herein, along with the targeted applications of such material in the adsorption of different types of carbon-based gases (such as aldehydes, ketones, aromatic hydrocarbons, halogenated hydrocarbons, and carbon-based greenhouse gases). Finally, the future development directions and challenges of activated carbon are discussed. Our work will be expected to benefit the development of activated carbon exhibiting selective adsorption properties, and reduce the production costs of adsorbents.
Collapse
Affiliation(s)
- Xiaohong Wang
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Hairong Cheng
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Guangzheng Ye
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Jie Fan
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Fan Yao
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Yuqin Wang
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Yujun Jiao
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Wenfu Zhu
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China
| | - Haomin Huang
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, 510006, Guangzhou, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), 510006, Guangzhou, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, South China University of Technology, 510006, Guangzhou, China.
| | - Daiqi Ye
- School of Environment and Energy, South China University of Technology, 510006, Guangzhou, China; National Engineering Laboratory for VOCs Pollution Control Technology and Equipment, 510006, Guangzhou, China; Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control (SCUT), 510006, Guangzhou, China; Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, South China University of Technology, 510006, Guangzhou, China
| |
Collapse
|
4
|
Efficient removal of formaldehyde by diatomite decorated with BiOCl/TiO2 under visible-light irradiation: Effects of key preparation parameters. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.09.041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
5
|
Ece MŞ, Kutluay S, Şahin Ö, Horoz S. Development of Novel Fe3O4/AC@SiO2@1,4-DAAQ Magnetic Nanoparticles with Outstanding VOC Removal Capacity: Characterization, Optimization, Reusability, Kinetics, and Equilibrium Studies. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03883] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Mehmet Şakir Ece
- Vocational High School of Health Services, Mardin Artuklu University, 47100 Mardin, Turkey
| | - Sinan Kutluay
- Department of Chemical Engineering, Siirt University, 56100 Siirt, Turkey
| | - Ömer Şahin
- Department of Chemical Engineering, Siirt University, 56100 Siirt, Turkey
| | - Sabit Horoz
- Department of Electrical &Electronics Engineering, Siirt University, 56100 Siirt, Turkey
| |
Collapse
|
6
|
Garner SN, Li Z, Lee D, Graeve OA, Deheyn DD, McKittrick JM. Mechanical Optimization of Diatomite Monoliths from Freeze Casting for High-Throughput Applications. ACS APPLIED BIO MATERIALS 2020; 3:4444-4453. [DOI: 10.1021/acsabm.0c00438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sean N. Garner
- Materials Science and Engineering Program, University of California San Diego, La Jolla, California 92093-0411, United States
| | - Zhixiong Li
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093-0411, United States
| | - Doheon Lee
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093-0411, United States
| | - Olivia A. Graeve
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093-0411, United States
| | - Dimitri D. Deheyn
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California 92093-0202, United States
| | - Joanna M. McKittrick
- Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla, California 92093-0411, United States
| |
Collapse
|
7
|
Sui H, Wang Z, He L, Han Z, Li X. Piecewise loading bed for reversible adsorption of VOCs on silica gels. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.05.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
8
|
Abstract
The development of the sustainable synthesis of zeolites has become a very hot topic in recent years. Herein, we report a sustainable route for synthesizing all-silica SOD zeolite under solvent-free conditions. The method of solvent-free synthesis includes mixing, grinding, and heating raw solids. The all-silica SOD zeolite obtained was well characterized by multiple measurement techniques (XRD, SEM, IR, thermogravimetric-differential thermal analysis (TG-DTA), and magic angel spinning nuclear magnetic resonance (MAS NMR)). The crystallization process of all-silica SOD zeolite was also investigated in detail by XRD, SEM, UV-Raman, and MAS NMR techniques. In addition, the effects of the crystallization compositions, including the molar ratios of Na2O/SiO2 and ethylene glycol/SiO2, on the synthesis of the pure all-silica SOD zeolite were investigated at different temperatures.
Collapse
|