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Tian H, Zheng Z, Pang X, Lan S, Han Z, Liang Z, Sun D. A novel method for production of nitrogen fertilizer with low energy consumption by efficiently adsorbing and separating waste ammonia. ENVIRONMENTAL RESEARCH 2024; 247:118245. [PMID: 38244966 DOI: 10.1016/j.envres.2024.118245] [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: 09/09/2023] [Revised: 01/14/2024] [Accepted: 01/17/2024] [Indexed: 01/22/2024]
Abstract
Recovering waste NH3 to be used as a source of nitrogen fertilizer or liquid fuel has recently attracted much attention. Current methods mainly utilize activated carbon or metal-organic frameworks to capture NH3, but are limited due to low NH3 adsorption capacity and high cost, respectively. In this study, novel porous materials that are low cost and easy to synthesize were prepared as NH3 adsorbents by precipitation polymerization with acid optimization. The results showed that adsorption sites (‒COOH, -OH, and lactone) which form chemical adsorption or hydrogen bonds with NH3 were successfully regulated by response surface methods. Correspondingly, the dynamic NH3 adsorption capacity increased from 5.45 mg g-1 to 129 mg g-1, which is higher than most known activated carbon and metal-organic frameworks. Separation performance tests showed that NH3 could also be separated from CO2 and CH4. The findings in this study will advance the industrialization of NH3 polymer adsorbents and provide technical support for the recycling of waste NH3.
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Affiliation(s)
- Haozhong Tian
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China; Beijing Key Lab for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science & Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Zhenkun Zheng
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Xiaobing Pang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China.
| | - Senchen Lan
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Zhangliang Han
- College of Environment, Zhejiang University of Technology, Hangzhou, 310014, China; Beijing Key Lab for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science & Engineering, Beijing Forestry University, Beijing, 100083, China; Shaoxing Research Institute, Zhejing University of Technology, Shaoxing, 312000, China.
| | - Zhirong Liang
- Zhongfa Aviation Institute of Beihang University, Hangzhou, China, 310023, China
| | - Dezhi Sun
- Beijing Key Lab for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science & Engineering, Beijing Forestry University, Beijing, 100083, China.
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2
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Hashemzadeh F, Derakhshandeh SH, Soori MM, Khedri F, Rajabi S. Bisphenol A adsorption using modified aloe vera leaf-wastes derived bio-sorbents from aqueous solution: kinetic, isotherm, and thermodynamic studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:2031-2051. [PMID: 37158808 DOI: 10.1080/09603123.2023.2208536] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/26/2023] [Indexed: 05/10/2023]
Abstract
Reactive-oxygen-species are produced more often in the body when bisphenol A (BPA), an endocrine-disrupting-substance, is present. In this investigation, bio-sorbents from an aqueous solution adapted from Aloe-vera were used to survey BPA removal. Aloe-vera leaf wastes were used to create activated carbon, which was then analyzed using Fourier transform infrared (FTIR), Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Thermogravimetric analysis (TGA), Zeta potential, and Brunauer-Emmett-Teller (BET) techniques. It was revealed that the adsorption process adheres to the Freundlich isotherm model with R2>0.96 and the pseudo-second-order kinetic model with R2>0.99 under ideal conditions (pH = 3, contact time = 45 min, concentration of BPA = 20 mg.L-1, and concentration of the adsorbent = 2 g.L-1). After five-cycle, the efficacy of removal was greater than 70%. The removal of phenolic-chemicals from industrial-effluent can be accomplished with the assistance of this adsorbent in a cost-effective and effective-approach.
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Affiliation(s)
- Farzad Hashemzadeh
- Water and Wastewater Research Center, Water Research Institute, Tehran, Iran
| | - Seyed Hamed Derakhshandeh
- Department of Chemical Engineering, Faculty of Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Mohammad Mahdi Soori
- Department of Environmental Health Engineering, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Fereshteh Khedri
- Department of Laboratory Sciences, Faculty of Allied Medical Sciences, Ilam University of Medical Sciences, Ilam, Iran
| | - Saeed Rajabi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Environmental Health Engineering, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
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3
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Eliuz EE, Yabalak E, Ayas D. Inhibition performance of almond shell hydrochar-based fish oil emulsion gel on Klebsiella pneumonia inoculated fish skin and its characteristics. Int J Biol Macromol 2024; 264:130529. [PMID: 38432281 DOI: 10.1016/j.ijbiomac.2024.130529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
In this study, the inhibition potential against Klebsiella pneumoniae (K. pneumoniae) and the characterization of fish oil (FO) emulsion gel (EGE) containing almond shell hydrochar (AH) were investigated. Oily water of mullet liver was emulsified using tween 80, then gelled using gelatin and finally immobilized into hydrochar using an ultrasonic homogenizer. Characteristics and surface analysis of hydrochar-based emulsion gel (HEGE) were examined using FTIR and SEM. Stability, particle size distribution and zeta potential of HEGE were measured. In this study, a zeta potential of -18.46 indicated that HEGE was more stable than EGE (35.7 mV). The addition of hydrochar to the emulsion gel containing micro-droplets enabled the structure to become fully layered and stable. Time-dependent inactivation of K. pneumoniae exposed to HEGE and fixed in 6 mm-fish skin was evaluated for the first time in this study. While the highest log reduction and percent reduction in the bacterial count were achieved within 5 min with 0.87 CFU/cm2 and 86.60% with EGE, the lowest log reduction and percent reduction were achieved with 0.003 CFU/cm2 and 0.082% with HEGE in 30 min. In conclusion, the almond shell hydrochar-immobilized emulsion gel is a functional adsorbent that can inhibit K. pneumonia, and its stability and performance make it a unique candidate for further studies in this field.
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Affiliation(s)
- Elif Erdogan Eliuz
- Department of Seafood Processing Technology, Faculty of Fisheries, Mersin University, Mersin, Turkey.
| | - Erdal Yabalak
- Department of Chemistry and Chemical Processing Technologies, Technical Science Vocational School, Mersin University, 33343 Mersin, Turkey; Department of Nanotechnology and Advanced Materials, Mersin University, TR-33343 Mersin, Turkey.
| | - Deniz Ayas
- Department of Seafood Processing Technology, Faculty of Fisheries, Mersin University, Mersin, Turkey
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4
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Song Q, Wang Q, Lu F, Dai B. Influence of Brönsted Acid Sites on Activated Carbon-Based Catalyst for Acetylene Dimerization. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7345-7352. [PMID: 38293864 DOI: 10.1021/acsami.3c18423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Activated carbon (AC) has been widely used as a support material with both tunable acidity and abundant functional groups for solid acid catalysts in various chemical processes such as acetylene dimerization. A facile, mild acid modification method that directly activates AC to generate rich defects and oxygen functional group surface structures with Brönsted acid sites and an enhanced conductivity is presented here. Impressively, the catalyst with optimized Brönsted acid sites and an enhanced dispersion of active components exhibited a superior acetylene dimerization catalytic activity. Moreover, theoretical calculations indicated that an increase in hydrogen concentration could inhibit the formation of coke. This research offered a feasible potential way to devise and construct a carbon-based solid acid catalyst with an excellent catalytic performance.
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Affiliation(s)
- Qi Song
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory lncubation Base for Green Processing of Chemical Engineering, Shihezi 832000, China
| | - Qinqin Wang
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory lncubation Base for Green Processing of Chemical Engineering, Shihezi 832000, China
| | - Fangjie Lu
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory lncubation Base for Green Processing of Chemical Engineering, Shihezi 832000, China
| | - Bin Dai
- School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory lncubation Base for Green Processing of Chemical Engineering, Shihezi 832000, China
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Chaoui A, Farsad S, Ben Hamou A, Amjlef A, Nouj N, Ezzahery M, El Alem N. Reshaping environmental sustainability: Poultry by-products digestate valorization for enhanced biochar performance in methylene blue removal. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119870. [PMID: 38141348 DOI: 10.1016/j.jenvman.2023.119870] [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: 11/08/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 12/25/2023]
Abstract
Anaerobic digestion is a highly effective and innovative method for treating organic waste while simultaneously generating energy. However, the treatment of the resulting digestate remains a challenging endeavor. To address this issue, poultry by-products digestate is used in this study to prepare biochars at two different pyrolysis temperatures (500/600 °C). Despite their potential, the utilization of untreated biochar is restricted due to its inadequate adsorption capacity. Therefore, each biochar was chemically activated using either HNO3 or KOH to synthesize four activated biochars (BC5@KOH, BC6@HNO3, BC5@HNO3, and BC6@HNO3). The aim is to investigate how the nature of chemical activation and pyrolysis temperature influence the adsorption of methylene blue dye. Characterization techniques, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, scanning electron microscopy (SEM), Raman analysis, and pHpzc determination, were exploited to comprehensively elucidate the structure and composition of both unprocessed and chemically activated biochars. Among the activated biochars, the adsorbent BC5@HNO3 exhibits the highest methylene blue (MB) adsorption capacity, reaching 101.72 mg.g-1 at 298 K under (pH = 2, ads dose = 0.6 g.L-1, shaking time of 20 min, as optimal conditions for MB adsorption. Adsorption data for each adsorbent strongly aligns with both the Langmuir isotherm model and the pseudo-second-order kinetic model. Moreover, the thermodynamic study reveals that the adsorption process was endothermic and spontaneous. The adsorption mechanism of MB dye was explored using various analytical techniques, including FTIR, SEM, PZC, and pH impact assessment. The findings suggest correlations with electrostatic interactions, hydrogen bonding, pore filling, as well as n-π and π-π interactions. Apparently, activated biochars play a crucial role in efficiently removing methylene blue dye, showcasing their potential as environmentally friendly and effective adsorbents.
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Affiliation(s)
- Ayoub Chaoui
- Laboratory of Materials and Environment, Faculty of Sciences, Ibnou Zohr University, Agadir, Morocco.
| | - Salaheddine Farsad
- Laboratory of Materials and Environment, Faculty of Sciences, Ibnou Zohr University, Agadir, Morocco
| | - Aboubakr Ben Hamou
- Laboratory of Materials and Environment, Faculty of Sciences, Ibnou Zohr University, Agadir, Morocco
| | - Asma Amjlef
- Laboratory of Materials and Environment, Faculty of Sciences, Ibnou Zohr University, Agadir, Morocco
| | - Nisrine Nouj
- Laboratory of Materials and Environment, Faculty of Sciences, Ibnou Zohr University, Agadir, Morocco
| | - Mohamed Ezzahery
- Laboratory of Materials and Environment, Faculty of Sciences, Ibnou Zohr University, Agadir, Morocco
| | - Noureddine El Alem
- Laboratory of Materials and Environment, Faculty of Sciences, Ibnou Zohr University, Agadir, Morocco
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6
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Han Z, Yan Y, Pang X, Zhang A, Hu ZT, Wenren G, Lan S, Sun D. Polyester conversion by homogeneous catalysis for separating and recycling ammonia from biogas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:168138. [PMID: 37890631 DOI: 10.1016/j.scitotenv.2023.168138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/08/2023] [Accepted: 10/24/2023] [Indexed: 10/29/2023]
Abstract
Biogas is being promoted as a renewable and clean energy source. However, NH3 is a precursor of NOx and PM2.5 within the biogas, threatening ecological and human health. Therein, recycling waste NH3 from the biogas as a raw material of nitrogen fertilizer was tested by optimizing polyester as a sorbent material. After homogeneous catalysis, the converted polyester significantly increased the NH3 adsorption sites within polyester nanopores; correspondingly, the NH3 adsorption capacity increased from 0.56 mg·g-1 to 84.07 mg·g-1. Based on the structural characterization of polyesters, functional groups analysis before and after adsorption, and kinetic analysis during adsorption, chemical adsorption was identified as the dominant mechanism for NH3 adsorption. Moreover, selective adsorption and the regeneration experiments to optimize polyester indicated that NH3 could be efficiently separated from biogas with good regeneration performance. The results demonstrate the efficacy of recycling waste polyester and NH3 from the biogas.
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Affiliation(s)
- Zhangliang Han
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; Shaoxing Research Institute, Zhejiang University of Technology, Shaoxing 312000, China
| | - Yubo Yan
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xiaobing Pang
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Aoran Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Zhong-Ting Hu
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; Industrial Catalysis Institute, Zhejiang University of Technology, Hangzhou 310014, China
| | - Gutian Wenren
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Senchen Lan
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Dezhi Sun
- College of Environmental Science & Engineering, Beijing Forestry University, Beijing Key Lab for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control & Eco-remediation, Beijing 100083, China
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7
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Ketwong T, Cholwatthanatanakorn N, Ding L, Wibowo H, Areeprasert C. Utilization of bagasse fly ash for the production of low-cost ammonia adsorbents in poultry farm. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 172:347-357. [PMID: 37951058 DOI: 10.1016/j.wasman.2023.10.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/13/2023] [Accepted: 10/29/2023] [Indexed: 11/13/2023]
Abstract
NH3 pollution is a significant problem in the poultry farming because excess NH3 can negatively impact chicken health and stunt their growth. Therefore, this study investigated the low-cost production of bagasse fly ash (FA)-a byproduct of the sugar industry-as an NH3 adsorbent. Hydrothermal carbonization and activation were applied to enhance NH3 adsorption using FA. In the experiments, the adsorption capabilities were improved using industrial waste materials mixed with bamboo char or red mud. The experimental results indicate that bagasse FA mixed with bamboo hydrochar under 10 % loading achieved an NH3 adsorption capacity of ∼ 1.02 mg-NH3/g-adsorbent, or ∼ 55 % of that of the commercial adsorbent. To avoid secondary pollution and provide the spent absorbents with an added value, their use in CO2 capture applications was evaluated. The results showed that the adsorbent had a 0.28 mmol-CO2/g-adsorbent capacity.
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Affiliation(s)
- Tulakarn Ketwong
- Department of Mechanical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Lat Yao, Chatuchak, Bangkok 10900, Thailand
| | - Natchapon Cholwatthanatanakorn
- Department of Mechanical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Lat Yao, Chatuchak, Bangkok 10900, Thailand
| | - Lu Ding
- Institute of Clean Coal Technology, East China University of Science and Technology, Shanghai 200237, PR China
| | - Haryo Wibowo
- Department of Mechanical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Lat Yao, Chatuchak, Bangkok 10900, Thailand
| | - Chinnathan Areeprasert
- Department of Mechanical Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Lat Yao, Chatuchak, Bangkok 10900, Thailand.
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8
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Niu Y, Zheng C, Xie Y, Kang K, Song H, Bai S, Han H, Li S. Efficient Adsorption of Ammonia by Surface-Modified Activated Carbon Fiber Mesh. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2857. [PMID: 37947702 PMCID: PMC10648919 DOI: 10.3390/nano13212857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/20/2023] [Accepted: 10/26/2023] [Indexed: 11/12/2023]
Abstract
In view of the characteristics and risks of ammonia, its removal is important for industrial production and environmental safety. In this study, viscose-based activated carbon fiber (ACF) was used as a substrate and chemically modified by nitric acid impregnation to enhance the adsorption capacity of the adsorbent for ammonia. A series of modified ACF-based adsorbents were prepared and characterized using BET, FTIR, XPS, and Boehm titration. Isotherm tests (293.15 K, 303.15 K, 313.15 K) and dynamic adsorption experiments were performed. The characterization results showed that impregnation with low concentrations of nitric acid not only increased the surface acidic functional group content but also increased the specific surface area, while impregnation with high concentrations of nitric acid could be able to decrease the specific surface area. ACF-N-6 significantly increased the surface functional group content without destroying the physical structure of the activated carbon fibers. The experimental results showed that the highest adsorption of ammonia by ACFs was 14.08 mmol-L-1 (ACF-N-6) at 293 K, and the adsorption capacity was increased by 165% compared with that of ACF-raw; by fitting the adsorption isotherm and calculating the equivalent heat of adsorption and thermodynamic parameters using the Langmuir-Freundlich model, the adsorption process could be found to exist simultaneously. Regarding physical adsorption and chemical adsorption, the results of the correlation analysis showed that the ammonia adsorption performance was strongly correlated with the carboxyl group content and positively correlated with the relative humidity (RH) of the inlet gas. This study contributes to the development of an efficient ammonia adsorption system with important applications in industrial production and environmental safety.
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Affiliation(s)
- Yongxiang Niu
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China;
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China; (C.Z.); (Y.X.); (K.K.); (H.S.); (S.B.)
| | - Chao Zheng
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China; (C.Z.); (Y.X.); (K.K.); (H.S.); (S.B.)
| | - Yucong Xie
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China; (C.Z.); (Y.X.); (K.K.); (H.S.); (S.B.)
| | - Kai Kang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China; (C.Z.); (Y.X.); (K.K.); (H.S.); (S.B.)
| | - Hua Song
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China; (C.Z.); (Y.X.); (K.K.); (H.S.); (S.B.)
| | - Shupei Bai
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China; (C.Z.); (Y.X.); (K.K.); (H.S.); (S.B.)
| | - Hao Han
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China; (C.Z.); (Y.X.); (K.K.); (H.S.); (S.B.)
| | - Shunyi Li
- School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China;
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Fu J, Liu JY, Zhang GH, Zhu QH, Wang SL, Qin S, He L, Tao GH. Boost of Gas Adsorption Kinetics of Covalent Organic Frameworks via Ionic Liquid Solution Process. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302570. [PMID: 37229752 DOI: 10.1002/smll.202302570] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/02/2023] [Indexed: 05/27/2023]
Abstract
Adsorption, storage, and conversion of gases (e.g., carbon dioxide, hydrogen, and iodine) are the three critical topics in the field of clean energy and environmental mediation. Exploring new methods to prepare high-performance materials to improve gas adsorption is one of the most concerning topics in recent years. In this work, an ionic liquid solution process (ILSP), which can greatly improve the adsorption kinetic performance of covalent organic framework (COF) materials for gaseous iodine, is explored. Anionic COF TpPaSO3 H is modified by amino-triazolium cation through the ILSP method, which successfully makes the iodine adsorption kinetic performance (K80% rate) of ionic liquid (IL) modified COF AC4 tirmTpPaSO3 quintuple compared with the original COF. A series of experimental characterization and theoretical calculation results show that the improvement of adsorption kinetics is benefited from the increased weak interaction between the COF and iodine, due to the local charge separation of the COF skeleton caused by the substitution of protons by the bulky cations of ILs. This ILSP strategy has competitive help for COF materials in the field of gas adsorption, separation, or conversion, and is expected to expand and improve the application of COF materials in energy and environmental science.
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Affiliation(s)
- Jie Fu
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Jia-Ying Liu
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Guo-Hao Zhang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Qiu-Hong Zhu
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Shuang-Long Wang
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Song Qin
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Ling He
- College of Chemistry, Sichuan University, Chengdu, 610064, China
| | - Guo-Hong Tao
- College of Chemistry, Sichuan University, Chengdu, 610064, China
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10
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Wu L, Yang L. A novel micro-sphere activated carbon synthesized from waste cigarette butts for ammonia adsorption. WASTE MANAGEMENT (NEW YORK, N.Y.) 2023; 168:396-405. [PMID: 37352689 DOI: 10.1016/j.wasman.2023.06.017] [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: 03/10/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 06/25/2023]
Abstract
Waste cigarette filters mainly contain hardly degradable cellulose acetate, toxic nicotine, and traces of heavy metals, and therefore cause environmental pollution hazards when discarded. In order to convert cigarette butt waste into a valuable product, this article investigates the preparation of activated carbon from cigarette butts via a two-step process of hydrothermal reaction and a subsequent chemical activation with phosphoric acid as an activator. During hydrothermal reaction, it was found that a process of decarboxylation and dehydration cleavage of acetate occurs, leading to micron fragments and subsequent agglomeration into carbonaceous micro-spheres. The cigarette-butts-derived activated carbon micro-spheres have a high BET surface area of ∼ 1406 m2/g and NH3 adsorption capacity of ∼ 35.9 mg/g. It was revealed that the ammonia adsorption capacity tends to be positively and linearly correlated with the acidic functional group content of the activated carbon surface while negatively with BET surface area.
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Affiliation(s)
- Liangyi Wu
- College of Environment and Resources, Xiangtan University, Xiangtan 411105, Hunan, China
| | - Liuchun Yang
- College of Environment and Resources, Xiangtan University, Xiangtan 411105, Hunan, China.
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11
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Soleimani H, Sharafi K, Amiri Parian J, Jaafari J, Ebrahimzadeh G. Acidic modification of natural stone for Remazol Black B dye adsorption from aqueous solution- central composite design (CCD) and response surface methodology (RSM). Heliyon 2023; 9:e14743. [PMID: 37025793 PMCID: PMC10070669 DOI: 10.1016/j.heliyon.2023.e14743] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 03/29/2023] Open
Abstract
This study investigated the adsorption capacity of Remazol Black B (RBB) from aqueous solutions using a pumice stone as a cheap, high-frequent, and available adsorbent. The raw pumice was modified using five acids: Acetic, Sulfuric, Phosphoric, Nitric, and Hydrochloric acid. Fourier transform infrared spectrograph (FTIR), x-ray fluorescence (XRF), and scanning electron microscopy (SEM) were used to analyze the morphological and chemical properties of raw and modified adsorbents. The adsorption capacity equilibrium was investigated using the Langmuir, Freundlich, Temkin, and Dubinin - Radushkevich isotherms. The results indicated that the data are well-fitted with Langmuir isotherm. The maximum adsorption capacity was observed when pumice modified with H2SO4 (qm = 10.00 mg/g) was used, and the RBB removal efficiency was higher than that for raw pumice (qm = 5.26 mg/g). Also, the results were best fitted with pseudo-second-order kinetic. The experiments indicated that increasing the RBB concentration reduces the efficiency of adsorbents while increasing the contact time and adsorbent doses improved the RBB removal efficiency. Accordingly, it can be concluded that pumice stone modified with various acids can be considered a cheap adsorbent with high efficiency in removing RBB from industry effluent.
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Affiliation(s)
- Hamed Soleimani
- Research Center for Environmental Determinants of Health (RCEDH), Research Institute for Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Student's Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Kiomars Sharafi
- Research Center for Environmental Determinants of Health (RCEDH), Research Institute for Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Environmental Health Engineering, School of Public Health, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Jafar Amiri Parian
- Biosystems Engineering Department, Bu-Ali Sina University, Hamedan, Iran
- Corresponding author.
| | - Jalil Jaafari
- Department of Environmental Health Engineering, Research Center of Health and Environment, School of Health, Guilan University of Medical Sciences, Rasht, Iran
| | - Gholamreza Ebrahimzadeh
- Department of Environmental Health Engineering, School of Public Health, Zabol University of Medical Sciences, Zabol, Iran
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12
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Abioye BO, Okoya AA, Akinyele AB. Adsorption of trichloroacetic acid from drinking water using polyethylene terephthalate waste carbon and periwinkle shells–based chitosan. PHYSICAL SCIENCES REVIEWS 2023. [DOI: 10.1515/psr-2022-0295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Abstract
Toxins are formed because of massive anthropogenic activities, polluting freshwater bodies. Most disinfectants used in water purification produce disinfection by-products (DBPs) such as trichloroacetic acid (TCA). TCA is a strong acid, and TCA uptake could harm gastrointestinal tract tissues or result in systemic acidosis. Activated carbons were investigated to remove TCA from drinking water in this study. Elemental and Energy Dispersive X-ray (EDX) and scanning electron microscope methodologies were employed to characterize the surface morphological features of the activated carbons (SEM). Activated carbons’ chemical functional groups were identified through using Fourier transform-infrared (FT-IR) spectroscopy technique. Using a UV-vis spectrophotometer, the TCA concentrations in water samples were examined at 530 nm. The levels of TCA in raw and conventionally treated water were 0.9900 and 2.8900 mg/L, respectively. The polyethylene terephthalate activated carbon (PETAC), polyethylene terephthalate modified activated carbon (PETMAC), and commercial activated carbon (CAC) gave mean TCA removal efficiencies of 80.80%, 90.90%, and 90.90% for raw water and 95.16%, 96.13%, and 100% for conventionally treated water, respectively. The reusability efficiencies of PETAC and PETMAC were 78.4% and 82.4%, respectively. The PETAC with R
2 = 0.9377 showed that Langmuir model best fit the TCA adsorption in the isotherm models. According to the findings, PETAC was effective at removing TCA from water sources and could be improved by incorporating chitosan.
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Affiliation(s)
| | - Aderonke Adetutu Okoya
- Institute of Ecology and Environmental Studies , Obafemi Awolowo University , Ile-Ife , Nigeria
| | - Abimbola Bankole Akinyele
- Pure and Industrial Chemistry Department , Nnamdi Azikwe University , Awka , Anambra State , Nigeria
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13
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Han Z, Mao Y, Pang X, Yan Y. Structure and functional group regulation of plastics for efficient ammonia capture. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129789. [PMID: 36007365 DOI: 10.1016/j.jhazmat.2022.129789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/04/2022] [Accepted: 08/14/2022] [Indexed: 06/15/2023]
Abstract
Activated carbon and metal organic frameworks have been tested as NH3 recovery adsorbents, however, they are limited due to low NH3 adsorption capacity and high cost, respectively. In this study, ethylene glycol dimethacrylate (EGDMA) polymers as the representative ester plastics were tested, and their structure and adsorption sites were regulated using HNO3, HCl, or H2SO4 with varied H+ concentrations. The results showed that the EGDMA polymers all used hydrolysis which promoted NH3 adsorption via different mechanisms. With HNO3 and HCl optimization, an increased surface area promoted NH3 adsorption via physical forces. H2SO4 optimization resulted in -COOH, -OH, and -SO3H formation, which reacted with NH3 by chemical adsorption and hydrogen bonds. This significantly increased the NH3 adsorption capacity (85.99 mg·g-1) compared to the material before optimization (0.36 mg·g-1). This study presents a novel low-cost and efficient method to recycle waste plastics as NH3 adsorbents.
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Affiliation(s)
- Zhangliang Han
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China; Shaoxing Research Institute, Zhejing University of Technology, Shaoxing 312000, China
| | - Yiping Mao
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xiaobing Pang
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Yubo Yan
- College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
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14
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Richard AJ, Chen Z, Islamoglu T, Farha OK, El-Kaderi HM. Heteroatom-Doped Porous Carbons as Effective Adsorbers for Toxic Industrial Gasses. ACS APPLIED MATERIALS & INTERFACES 2022; 14:33173-33180. [PMID: 35819823 DOI: 10.1021/acsami.2c06556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ammonia (NH3), often stored in large quantities before being used in the production of fertilizer, and sulfur dioxide (SO2), a byproduct of fossil fuel consumption, particularly the burning of coal, are highly toxic and corrosive gases that pose a significant danger to humans if accidentally released. Therefore, developing advanced materials to enable their effective capture and safe storage is highly desired. Herein, advanced benzimidazole-derived carbons (BIDCs) with an exceptional capacity for NH3 and SO2 have been designed and tested. These heteroatom-doped porous carbon adsorbents were synthesized by thermolysis of imidazolate-potassium salts affording high surface area and controlled heteroatom content to optimize for rapid NH3 and SO2 gas uptake and release under practical conditions. According to gas uptake measurements, these nitrogen-doped carbons exhibit exceptional gas adsorption capacity, with BIDC-3-800 adsorbing 21.42 mmol/g SO2 at 298 K and 1 bar, exceeding most reported porous materials and BIDC-2-700 adsorbing 14.26 mmol/g NH3 under the same conditions. The NH3 uptake of BIDC-2-700 surpassed reported activated carbons and is among the best adsorbents including metal organic frameworks (MOFs). Our synthetic method allows for control over both textural and chemical properties of the carbon and enables heteroatom functionality to be incorporated directly into the carbon framework without the need for postsynthetic modification. These materials were also tested for recyclability; all adsorbents showed almost complete retention of their initial gas uptake capacity during recyclability studies and maintained their structural integrity and their previous adsorption capacity of both NH3 and SO2, highlighting their potential for practical application.
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Affiliation(s)
- Alexander J Richard
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
| | - Zhijie Chen
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Timur Islamoglu
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Omar K Farha
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Hani M El-Kaderi
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284, United States
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15
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Shen C, Wang P, Shen L, Yin X, Miao Z. NH 3 Adsorption Performance of Silicon-Supported Metal Chlorides. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00916] [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]
Affiliation(s)
- Cheng Shen
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Peng Wang
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Laihong Shen
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Xianglei Yin
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Zhenwu Miao
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
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16
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High Surface Area–Activated Carbon Production from Cow Manure Controlled by Heat Treatment Conditions. Processes (Basel) 2022. [DOI: 10.3390/pr10071282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, methods of adding value to cow manure were studied. Due to the properties of cow manure, activated carbon with a high surface area can only be produced by increasing the fixed carbon ratio and removing the ash content. Activated carbon was fabricated using five different treatments: (1) raw material–chemical activation, (2) raw material–hydrothermal carbonization–chemical activation, (3) raw material–hydrothermal carbonization–chemical activation–acid washing, (4) raw material–hydrothermal carbonization–heat treatment–chemical activation, and (5) raw material–hydrothermal carbonization–chemical activation–acid washing. The products then underwent proximate, elementary, and surface area analyses. In addition, changes in activated carbon properties depending on the heat treatment temperature (300, 500, 700 °C) and the applied chemical activator ratios (1:1–1:3) were examined. The results showed that the best heat treatment temperature was 300 °C, and the cow manure to chemical activator ratio was 1:2. The heat treatment stabilization process increases the fixed carbon ratio and the solid yield, and the acid wash process removes substances that restrain the increase in surface area. Therefore, activated carbon with a surface area of 1955 m2/g can be produced after the addition of heat treatment and an acid wash to the process. In addition, the adsorption properties of activated carbon with different heat treatment conditions were studied.
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Effects of MgCl2 loading on ammonia capacity of activated carbon for application in temperature swing adsorption, pressure swing adsorption, and pressure-temperature swing adsorption process. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-022-1102-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Maitlo HA, Maitlo G, Song X, Zhou M, Kim KH. A figure of merits-based performance comparison of various advanced functional nanomaterials for adsorptive removal of gaseous ammonia. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 822:153428. [PMID: 35090910 DOI: 10.1016/j.scitotenv.2022.153428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/11/2022] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
The implementation of sustainable industrial development based on energy/cost-effective techniques with zero/low rate of pollutant emission is an ideal strategy for the proper management of a natural environment. Gaseous ammonia released from a variety of anthropogenic sources (e.g., agriculture, pharmaceuticals, commercial cleaning products, and refrigerant) is estimated to be as high as 150 million tons∙year-1. To reduce the negative effects of atmospheric ammonia, the great utility of advanced functional nanomaterials (e.g., metal organic frameworks, covalent organic polymers, metal/metal oxide nanoparticles, and carbon nanostructures) has been recognized. To gain a better understanding of the sorptive removal potential of diverse materials, their performance has been evaluated based on the key performance merits (e.g., initial concentration, sorption capacity, and partition coefficient). Generally, the PC values can be applied to significantly estimate the contaminant adsorption potential of NMs via balancing the biased influences of operating parameters (e.g., initial concentration of pollutants) as perceived for the partitioning of compounds between aqueous phases at equilibrium (e.g., Henry's Law). Therefore, in this work, we have proposed the PC as a prosperous performance merit (in terms of heterogeneity of surface and strength of adsorption process) for the selection of high performance nano-adsorbents for gaseous ammonia. Moreover, the water stability, recyclability, economic aspects, and future perspectives have also been discussed for real-world applications of advanced nanomaterial against gaseous ammonia adsorption. The outcome of this evaluation will be expedient for the classification/selection of the most effectual and cost-effective options for mitigation of environmental pollutants like gaseous ammonia.
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Affiliation(s)
- Hubdar Ali Maitlo
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Department of Energy and Environment Engineering, Dawood University of Engineering and Technology, Karachi 74800, Pakistan
| | - Ghulamullah Maitlo
- Department of Chemical Engineering, Dawood University of Engineering and Technology, Karachi 74800, Pakistan
| | - Xiangru Song
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea.
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19
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Zhang Y, Xiao J, Zhang TC, Ouyang L, Yuan S. Synthesis of CuSiO3-loaded P-doped porous biochar derived from phytic acid-activated lemon peel for enhanced adsorption of NH3. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120179] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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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.
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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
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21
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Zhang X, Li Y, Zhang Z, Nie M, Wang L, Zhang H. Adsorption of condensable particulate matter from coal-fired flue gas by activated carbon. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 778:146245. [PMID: 33711589 DOI: 10.1016/j.scitotenv.2021.146245] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 02/18/2021] [Accepted: 02/27/2021] [Indexed: 06/12/2023]
Abstract
Condensable particulate matter (CPM) is a special kind of primary particulate matter and is in a gaseous state before discharge. After discharge, it rapidly forms liquid or solid particles through atmospheric dilution and cooling, which are harmful to the environment and human health. However, current research on controlling CPM is lacking. Therefore, the adsorption effects of activated carbons (ACs) on CPM at different temperatures were studied using EPA Method 202. Results showed that the removal efficiency range of CPM at 90 °C by ACs could reach 19%-22%. The removal efficiency of the inorganic fraction was higher than that of the organic fraction. ACs had obvious adsorption effects on Cl-, NH4+, and Hg in CPM but had marginal adsorption effects on SO42+, NO3-, and other metal elements in CPM. ACs had prominent adsorption effects on extremely toxic aromatic compounds in CPM. At a flue gas temperature of 35-170 °C, the efficiency of CPM removal through AC adsorption could increase with decreasing flue gas temperature, and this effect was more obvious during the adsorption of inorganic fractions. In addition, the efficiency of CPM removal through condensation and adsorption could reach up to 51% at 35 °C when flue gas at 130 °C was used as the initial flue gas.
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Affiliation(s)
- Xiaoyu Zhang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Yuzhong Li
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China.
| | - Zhuping Zhang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Maofeng Nie
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China; Shandong Low Carbon Expert Sci. & Tech. Co. Ltd., Jinan, Shandong 250002, China
| | - Lu Wang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
| | - Hongwei Zhang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Shandong University, Jinan, Shandong 250061, China
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22
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Preparation and Characterization of Physicochemical Properties of Spruce Cone Biochars Activated by CO 2. MATERIALS 2021; 14:ma14143859. [PMID: 34300777 PMCID: PMC8306995 DOI: 10.3390/ma14143859] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/05/2021] [Accepted: 07/08/2021] [Indexed: 12/02/2022]
Abstract
In this study the pyrolysis of Norway spruce cones, a lignocellulosic biomass was made. The biochar product was obtained by means of the physical activation method. CO2 was used as the activating gas. The surface properties of biochars were characterized by the nitrogen adsorption/desorption isotherms, scanning electron microscopy (SEM/EDS), X-ray fluorescence energy dispersion spectroscopy (ED-XRF), thermal analysis (TGA/DTA), infrared spectroscopy (ATR FT-IR), Raman spectroscopy and the Boehm’s titration method as well as the point of zero charge (pHpzc). The adsorption capacity and the possibility of ammonia desorption (TPD) were also examined. It has been shown that spruce cones can be successfully used as a cheap precursor of well-developed surface biochars, characterized by a large pore volume and good sorption properties. All obtained activated biochars exhibit a largely microporous structure and an acidic character surface. The investigated activated materials have the specific surface areas from 112 to 1181 m2 g−1. The maximum NH3 adsorption capacity of the activated biochar was determined to be 5.18 mg g−1 (88.22 mmol g−1) at 0 °C. These results indicate the applicability of spruce cones as a cheap precursor for the sustainable production of the cost-effective and environmentally friendly biochar adsorbent.
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Wang H, Song T, Li Z, Qiu J, Zhao Y, Zhang H, Wang J. Exceptional High and Reversible Ammonia Uptake by Two Dimension Few-layer BiI 3 Nanosheets. ACS APPLIED MATERIALS & INTERFACES 2021; 13:25918-25925. [PMID: 34048224 DOI: 10.1021/acsami.1c03261] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The emission of NH3 into atmosphere is seriously harmful for human health and public safety, thus the capture and recovery of NH3 from ammonia emissions is highly desirable. In recent years, many kinds of solid adsorbents have been exploited to absorb NH3. However, these materials do not show the advantages of high uptake capacity and good recyclability at the same time. Here, nontoxic and low cost few-layer BiI3 nanosheets have been prepared from bulk BiI3 powder by a simple and efficient liquid phase exfoliation strategy using green solvents and then applied for the NH3 capture for the first time. The results show that the adsorption capacity of NH3 of BiI3 nanosheets reaches up to 22.6 mmol/g at 1.0 bar and 25 °C, which approaches the record value for NH3 adsorption. Importantly, the NH3 uptake in BiI3 nanosheets is completely reversible and no clear loss in uptake capacity is observed after 10 cycles of adsorption-desorption. Furthermore, the BiI3 nanosheets exhibit remarkable selectivity for the separation of NH3/CO2 at 70 °C with theoretical selectivity coefficient of 700, which is promising for the selective separation of NH3 and CO2 in hot tail gas of some industrial processes. Mechanism studies indicate that such superior NH3 capacity, excellent reversibility and remarkable selectivity are primarily attributed to the Bi3+-NH3 coordination interactions.
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Affiliation(s)
- Huiyong Wang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, 46 Jianshe Road, Xinxiang, Henan 453007, P. R. China
| | - Tao Song
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, 46 Jianshe Road, Xinxiang, Henan 453007, P. R. China
| | - Zhiyong Li
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, 46 Jianshe Road, Xinxiang, Henan 453007, P. R. China
| | - Jikuan Qiu
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, 46 Jianshe Road, Xinxiang, Henan 453007, P. R. China
| | - Yang Zhao
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, 46 Jianshe Road, Xinxiang, Henan 453007, P. R. China
| | - Hucheng Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, 46 Jianshe Road, Xinxiang, Henan 453007, P. R. China
| | - Jianji Wang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Key Laboratory of Green Chemistry, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, 46 Jianshe Road, Xinxiang, Henan 453007, P. R. China
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Yang Y, Li L, Sun S, Lin E, Xiao J. Anaerobically fermented spent mushroom substrates improve nitrogen removal and lead (II) adsorption. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 83:1691-1702. [PMID: 33843752 DOI: 10.2166/wst.2021.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, spent mushroom substrates (SMSs) were fermented anaerobically at room temperature to gain liquid SMSs (LSMSs) that were used to remove nitrogen from the piggery wastewater with a low C/N ratio in a sequencing batch reactor (SBR) and solid SMSs (SSMSs) that were utilized to adsorb Pb2+ from Pb2+-containing wastewater in a fixed-bed reactor (FBR). After LSMSs supplement, the removal efficiency of both total nitrogen (TN) and NH+4-N increased from around 50% to 60-80%. High-throughput sequencing results presented an obvious change in microbial diversity, and some functional microorganisms like Zoogloea and Hydrogenophaga predominated to promote nitrogen removal. Pb2+ did not emerge from the effluent until 240 min with the corresponding concentration being less than 3 mg/L when using 30-day SSMSs as adsorbents, and it was demonstrated to be appropriate to use the Thomas model to predict Pb2+ sorption on SSMSs. Although various functional groups played a role in binding ions, the carboxyl group was proved to contribute most to Pb2+ adsorption. These results certified that the anaerobically fermented SMSs are decidedly suitable for wastewater treatment.
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Affiliation(s)
- Yunlong Yang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, Zhejiang, China E-mail: ; College of Life Science, Fujian Agriculture and Forestry University, Fuhzou 350002, Fujian, China
| | - Ling Li
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, Zhejiang, China E-mail: ; College of Life Science, Fujian Agriculture and Forestry University, Fuhzou 350002, Fujian, China
| | - Shuqian Sun
- College of Life Science, Fujian Agriculture and Forestry University, Fuhzou 350002, Fujian, China
| | - Ershu Lin
- College of Life Science, Fujian Agriculture and Forestry University, Fuhzou 350002, Fujian, China
| | - Jibo Xiao
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, Zhejiang, China E-mail: ; Wenzhou Chuangyuan Environment Technology Co. Ltd., Wenzhou 325036, Zhejiang, China
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Luo Q, Hao J, Wei L, Zhai S, Xiao Z, An Q. Protic ethanolamine hydrochloride-based deep eutectic solvents for highly efficient and reversible absorption of NH3. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118240] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Zhu X, Dou L, Wu J, Yue Y, Zhang J, Qian G. Carbon deposition enhanced selective catalytic reduction of nitric oxide by a new catalytic process as well as increasing reducibility of catalyst. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 756:143834. [PMID: 33280880 DOI: 10.1016/j.scitotenv.2020.143834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/09/2020] [Accepted: 11/05/2020] [Indexed: 06/12/2023]
Abstract
Carbon deposition usually hinders catalytic activity in one catalysis. In this work, carbon-deposition influence was investigated on selective catalytic reduction (SCR) of nitric oxide (NO) by a theoretical-experimental method. Density-functional-theory calculations showed that carbon deposition increased adsorption energy of NO on oxide. For example, adsorption energy on Fe2O3 increased from 1.70 to 5.27 eV. Carbon deposition increased activity by following processes: NO adsorption, NO dissociation, oxygen transmittance, CO-group formation, and N2/CO2 evolutions. Among these stages, CO-group formation was a key step. Based on these computational predictions, an experimental SCR was carried out for the verification. As a result, a carbon-deposited catalyst had a better SCR activity (20% higher) than the corresponding oxide catalyst. Characterizations showed that carbon deposition increased the amounts of medium/strong acidic sites as well as the reducibility of the catalytic center. The main result of this article helps to understand the interface behavior of carbon on a catalyst during SCR. Above results are also in favor of designing a more effective SCR reactor to ensure a more stable running.
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Affiliation(s)
- Xiaolei Zhu
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai 200444, PR China
| | - Li Dou
- China National Heavy Duty Truck Group Co., Ltd, Sinotruk Tower, No. 777 Hua'ao Road, Innovation Zone, Jinan, Shandong Province 25010, PR China
| | - Jianzhong Wu
- MGI of Shanghai University, Xiapu Town, Xiangdong District, Pingxiang City, Jiangxi 337022, PR China.
| | - Yang Yue
- MGI of Shanghai University, Xiapu Town, Xiangdong District, Pingxiang City, Jiangxi 337022, PR China.
| | - Jia Zhang
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai 200444, PR China.
| | - Guangren Qian
- SHU Center of Green Urban Mining & Industry Ecology, School of Environmental and Chemical Engineering, Shanghai University, No. 381 Nanchen Road, Shanghai 200444, PR China.
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Bhardwaj A, Kim IH, Mathur L, Park JY, Song SJ. Ultrahigh-sensitive mixed-potential ammonia sensor using dual-functional NiWO 4 electrocatalyst for exhaust environment monitoring. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123797. [PMID: 33264902 DOI: 10.1016/j.jhazmat.2020.123797] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 08/04/2020] [Accepted: 08/22/2020] [Indexed: 06/12/2023]
Abstract
The exhaust monitoring for in-situ quantification of gas pollutants has always been a challenge due to the harsh thermo-chemical environments, for which the solid-electrolyte based gas sensors appear as a realistic solution. In this work, an ultrahigh-sensitive mixed-potential ammonia sensor was developed using a new dual-functional NiWO4 electrocatalyst, synthesized through a low-temperature molten-salt synthesis route. The electrode morphology and diffusion lengths were tuned for optimum performance. The sensor operated at 550 ℃ displayed response of -100 mV to 80 ppm NH3, with response/recovery times of 28/68 s and a record-high sensitivity of 90 mV/decade. Besides, it displayed excellent selectivity and trace-level NH3 detection ability upto 400 ppb. While examining the sensing mechanism, the sensor exhibited an NH3 concentration-dependent transformation of rate-determining kinetics from charge-transfer limited Butler-Volmer type to diffusional mass-transport limited reaction kinetics. Moreover, the remarkable long-term stability with negligible response degradation (< 4%) confirms the suitability of the sensor for exhaust environment monitoring.
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Affiliation(s)
- Aman Bhardwaj
- School of Materials Science and Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - In-Ho Kim
- School of Materials Science and Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Lakshya Mathur
- School of Materials Science and Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jun-Young Park
- Faculty of Nano Technology and Advanced Materials Engineering, Sejong University, Seoul 143-747, Republic of Korea.
| | - Sun-Ju Song
- School of Materials Science and Engineering, Chonnam National University, Gwangju 61186, Republic of Korea.
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28
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Liu Z, Wang Z, Chen H, Cai T, Liu Z. Hydrochar and pyrochar for sorption of pollutants in wastewater and exhaust gas: A critical review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115910. [PMID: 33227697 DOI: 10.1016/j.envpol.2020.115910] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 10/03/2020] [Accepted: 10/19/2020] [Indexed: 06/11/2023]
Abstract
Pollutants in wastewater and exhaust gas bring out serious concerns to public health and the environment. Biochar can be developed as a sustainable adsorbent originating from abundant bio-wastes, such as agricultural waste, forestry residue, food waste and human waste. Here we highlight the state-of-the-art research progress on pyrochar and hydrochar for the sorption of pollutants (heavy metal, organics, gas, etc) in wastewater and exhaust gases. The adsorption performance of pyrochar and hydrochar are compared and discussed in-depth, including preparation procedures (carbonization and activation), sorption possible mechanisms, and physiochemical properties. Challenges and perspective for designing efficient and environmental benign biochar-based adsorbents are finally addressed.
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Affiliation(s)
- Ziyun Liu
- Laboratory of Environment-Enhancing Energy (E2E), And Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering China Agricultural University, Beijing, 100083, China
| | - Zihan Wang
- Laboratory of Environment-Enhancing Energy (E2E), And Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering China Agricultural University, Beijing, 100083, China
| | - Hongxu Chen
- Laboratory of Environment-Enhancing Energy (E2E), And Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering China Agricultural University, Beijing, 100083, China
| | - Tong Cai
- Laboratory of Environment-Enhancing Energy (E2E), And Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering China Agricultural University, Beijing, 100083, China
| | - Zhidan Liu
- Laboratory of Environment-Enhancing Energy (E2E), And Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering China Agricultural University, Beijing, 100083, China.
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29
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Kang DW, Ju SE, Kim DW, Kang M, Kim H, Hong CS. Emerging Porous Materials and Their Composites for NH 3 Gas Removal. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2002142. [PMID: 33344126 PMCID: PMC7740097 DOI: 10.1002/advs.202002142] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/31/2020] [Indexed: 05/14/2023]
Abstract
NH3, essential for producing artificial fertilizers and several military and commercial products, is being produced at a large scale to satisfy increasing demands. The inevitable leakage of NH3 during its utilization, even in trace concentrations, poses significant environmental and health risks because of its highly toxic and reactive nature. Although numerous techniques have been developed for the removal of atmospheric NH3, conventional NH3 abatement systems possess the disadvantages of high maintenance cost, low selectivity, and emission of secondary wastes. In this context, highly tunable porous materials such as metal-organic frameworks, covalent organic frameworks, hydrogen organic frameworks, porous organic polymers, and their composite materials have emerged as next-generation NH3 adsorbents. Herein, recent progress in the development of porous NH3 adsorbents is summarized; furthermore, factors affecting NH3 capture are analyzed to provide a reasonable strategy for the design and synthesis of promising materials for NH3 abatement.
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Affiliation(s)
- Dong Won Kang
- Department of ChemistryKorea UniversitySeoul02841Republic of Korea
| | | | - Dae Won Kim
- Department of ChemistryKorea UniversitySeoul02841Republic of Korea
| | - Minjung Kang
- Department of ChemistryKorea UniversitySeoul02841Republic of Korea
| | - Hyojin Kim
- Department of ChemistryKorea UniversitySeoul02841Republic of Korea
| | - Chang Seop Hong
- Department of ChemistryKorea UniversitySeoul02841Republic of Korea
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Vo HT, Kim J, Kim NY, Lee JK, Joo JB. Effect of pore texture property of mesoporous alumina on adsorption performance of ammonia gas. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.07.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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31
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Olivera M, Musso M, De León A, Volonterio E, Amaya A, Tancredi N, Bussi J. Catalytic assessment of solid materials for the pyrolytic conversion of low-density polyethylene into fuels. Heliyon 2020; 6:e05080. [PMID: 33024865 PMCID: PMC7527577 DOI: 10.1016/j.heliyon.2020.e05080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/06/2020] [Accepted: 09/23/2020] [Indexed: 11/17/2022] Open
Abstract
Pyrolysis techniques provide an interesting way of recycling plastic wastes (PW) by transforming them into liquid fuels with high calorific values. Catalysts are employed in PW pyrolysis in order to favor cracking reactions; in that regard, cheap and abundant natural resources are being investigated as potential catalyst precursors. This article explores the pyrolysis of low-density polyethylene (LDPE) in a semibatch reactor under a reduced pressure of 300 torr and temperatures in the range of 370 °C-430 °C. Three different solid materials, an activated carbon (AC1), a commercial Fluid cracking catalyst (FCC) and an aluminum- pillared clay (Al-PILC), were tested as catalysts for the pyrolysis process. Thermogravimetric analyzes were previously performed to select the most catalytically active materials. AC1 displayed very low catalytic activity while FCC and Al-PILC displayed high activity and conversion to liquid products. Hydrocarbons ranging from C5 to C28 were identified in the liquid products as well as significant changes in their composition when FCC and Al-PILC catalyst were used. Differences in the catalytic activity of the 3 solid materials are ascribed mainly to differences in their acid properties.
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Affiliation(s)
- Melisa Olivera
- Laboratorio de Fisicoquímica de Superficies, DETEMA, Facultad de Química, Udelar, Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Mauricio Musso
- Laboratorio de Fisicoquímica de Superficies, DETEMA, Facultad de Química, Udelar, Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Andrea De León
- Laboratorio de Fisicoquímica de Superficies, DETEMA, Facultad de Química, Udelar, Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Elisa Volonterio
- Área Grasas y Aceites, Departamento de Ciencias y Tecnología de Alimentos, Facultad de Química, Udelar, Gral. Flores 2124, 11800, Montevideo, Uruguay
| | - Alejandro Amaya
- Laboratorio de Fisicoquímica de Superficies, DETEMA, Facultad de Química, Udelar, Gral. Flores 2124, 11800, Montevideo, Uruguay
- Instituto Polo Tecnológico de Pando, Facultad de Química, Udelar, By pass Ruta 8 y Ruta 101 s/n, Pando, Canelones, Uruguay
| | - Nestor Tancredi
- Laboratorio de Fisicoquímica de Superficies, DETEMA, Facultad de Química, Udelar, Gral. Flores 2124, 11800, Montevideo, Uruguay
- Instituto Polo Tecnológico de Pando, Facultad de Química, Udelar, By pass Ruta 8 y Ruta 101 s/n, Pando, Canelones, Uruguay
| | - Juan Bussi
- Laboratorio de Fisicoquímica de Superficies, DETEMA, Facultad de Química, Udelar, Gral. Flores 2124, 11800, Montevideo, Uruguay
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Potential Use of Waste Activated Sludge Hydrothermally Treated as a Renewable Fuel or Activated Carbon Precursor. Molecules 2020; 25:molecules25153534. [PMID: 32748842 PMCID: PMC7435997 DOI: 10.3390/molecules25153534] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 11/17/2022] Open
Abstract
In this work, dewatered waste activated sludge (DWAS) was subjected to hydrothermal carbonization to obtain hydrochars that can be used as renewable solid fuels or activated carbon precursors. A central composite rotatable design was used to analyze the effect of temperature (140–220 °C) and reaction time (0.5–4 h) on the physicochemical properties of the products. The hydrochars exhibited increased heating values (up to 22.3 MJ/kg) and their air-activation provided carbons with a low BET area (100 m2/g). By contrast, chemical activation with K2CO3, KOH, FeCl3 and ZnCl2 gave carbons with a well-developed porous network (BET areas of 410–1030 m2/g) and substantial contents in mesopores (0.079–0.271 cm3/g) and micropores (0.136–0.398 cm3/g). The chemically activated carbons had a fairly good potential to adsorb emerging pollutants such as sulfamethoxazole, antipyrine and desipramine from the liquid phase. This was especially the case with KOH-activated hydrochars, which exhibited a maximum adsorption capacity of 412, 198 and 146 mg/g, respectively, for the previous pollutants.
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33
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Effects of magnesium loading on ammonia capacity and thermal stability of activated carbons. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0508-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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34
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Pan X, Zhu M, Mei H, Liu Z, Shen T. Ammonia Absorption Enhancement by Metal Halide Impregnated Hollow Mesoporous Silica Spheres. ChemistrySelect 2020. [DOI: 10.1002/slct.202000965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xingxiang Pan
- College of Chemical Engineering Nanjing Tech University Nanjing Jiangsu 211816 P. R. China
| | - Ming Zhu
- College of Chemical Engineering Nanjing Tech University Nanjing Jiangsu 211816 P. R. China
| | - Hua Mei
- College of Chemical Engineering Nanjing Tech University Nanjing Jiangsu 211816 P. R. China
| | - Zuosong Liu
- College of Chemical Engineering Nanjing Tech University Nanjing Jiangsu 211816 P. R. China
| | - Tianyang Shen
- College of Chemical Engineering Nanjing Tech University Nanjing Jiangsu 211816 P. R. China
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35
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Kim J, Lee H, Vo HT, Lee G, Kim N, Jang S, Joo JB. Bead-Shaped Mesoporous Alumina Adsorbents for Adsorption of Ammonia. MATERIALS 2020; 13:ma13061375. [PMID: 32197526 PMCID: PMC7143451 DOI: 10.3390/ma13061375] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/01/2020] [Accepted: 03/16/2020] [Indexed: 11/25/2022]
Abstract
It is of great importance to remove toxic gases by efficient methods for recovering the atmosphere to safe levels. The adsorption of the toxic gas molecules on solid adsorbents is one of the most useful techniques because of its simple operation and economic feasibility. Here, we report the uniform Bead-Shaped Mesoporous Alumina (BSMA) with tunable particle size for use as an adsorbent for removal of toxic ammonia. The BSMA particles with tunable diameters were synthesized by means of a sol–gel reaction of Al(NO3)3∙9H2O as an alumina precursor in the presence of chitosan as a template. When the ammonia solution is added dropwise to the prepared viscose mixture containing chitosan, acetic acid, and the alumina precursor solution, the sol–gel condensation reaction of the alumina precursor occurs in the chitosan polymer metrics, resulting in bead-shaped chitosan-aluminum hydroxide particles. Then, final Bead-Shaped Mesoporous Alumina (BSMA) particles are obtained by calcination at a high temperature. During the synthesis, changing the mole ratio of the chitosan template to the alumina precursor allowed the particle diameter of the final bead sample to be finely controlled. In addition, the prepared BSMA particles have well-developed mesoporous characteristics with relatively large surface areas, which are beneficial for adsorption of gas molecules. In an ammonia adsorption experiment, the BSMA-1.5 sample, which has the smallest particle diameter among the bead samples, was the best in terms of adsorption capacity. In this manuscript, we systemically discuss the relationship between the characteristics of BSMA samples and their adsorption of ammonia.
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36
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Chen Y, Du Y, Liu P, Yang J, Li L, Li J. Removal of Ammonia Emissions via Reversible Structural Transformation in M(BDC) (M = Cu, Zn, Cd) Metal-Organic Frameworks. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:3636-3642. [PMID: 32068395 DOI: 10.1021/acs.est.9b06866] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
NH3 is the most important gaseous alkaline pollutant, which when accumulated at high concentrations can have a serious impact on animal and human health. More importantly, NH3 emissions will react with acidic pollutant gases to form particulate matter (PM2.5) in the atmosphere, which also poses a huge threat to human activities. The use of adsorbents for NH3 removal from emission sources or air is an urgent issue. However, there are difficulties in the compatibility between high adsorption capacity and recyclability for most conventional adsorbents. In this work, a structural transformation strategy using metal-organic frameworks (MOFs) is proposed for large-scale and recyclable NH3 adsorption. A series of M(BDC) (M = Cu, Zn, Cd) materials can transform into one-dimensional M(BDC)(NH3)2 after NH3 adsorption, resulting in repeatable adsorption capacities of 17.2, 14.1, and 7.4 mmol/g, respectively. These MOFs can be completely regenerated at 250 °C for 80 min with no adsorption capacity loss. Besides, breakthrough and cycle tests indicate that Cu(BDC) and Zn(BDC) show good performance in the removal of low concentrations of NH3 from the air. Overall, combining the advantages of high adsorption capacity and recyclability due to the reversible structural transformation, Cu(BDC) and Zn(BDC) can be employed as ideal adsorbent candidates for NH3 removal.
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Affiliation(s)
- Yang Chen
- Research Institute of Special Chemicals, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan 030024, Shanxi, P. R. China
| | - Yadan Du
- Research Institute of Special Chemicals, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
| | - Puxu Liu
- Research Institute of Special Chemicals, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
| | - Jiangfeng Yang
- Research Institute of Special Chemicals, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan 030024, Shanxi, P. R. China
| | - Libo Li
- Research Institute of Special Chemicals, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan 030024, Shanxi, P. R. China
| | - Jinping Li
- Research Institute of Special Chemicals, College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, Taiyuan 030024, Shanxi, P. R. China
- Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan 030024, Shanxi, P. R. China
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Vohra M. Treatment of Gaseous Ammonia Emissions Using Date Palm Pits Based Granular Activated Carbon. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17051519. [PMID: 32120871 PMCID: PMC7084576 DOI: 10.3390/ijerph17051519] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 02/17/2020] [Accepted: 02/18/2020] [Indexed: 11/16/2022]
Abstract
The present work investigated the application of granular activated carbon (GAC) derived from date palm pits (DPP) agricultural waste for treating gaseous ammonia. Respective findings indicate increased breakthrough time (run time at which 5% of influent ammonia is exiting with the effluent gas) with a decrease in influent ammonia and increase in GAC bed depth. At a gas flow rate of 1.1 L/min and GAC column length of 8 cm, the following breakthrough trend was noted: 1295 min (2.5 ppmv) > 712 min (5 ppmv) > 532 min (7.5 ppmv). A qualitatively similar trend was also noted for the exhaustion time results (run time at which 95% of influent ammonia is exiting with the effluent gas). The Fourier Transform Infrared Spectroscopy (FTIR) findings for the produced GAC indicated some salient functional groups at the produced GAC surface including O–H, C–H, C–O, and S=O groups. Ammonia adsorption was suggested to result from its interaction with the respective surface functional groups via different mechanisms. Comparison with a commercial GAC showed the date palm pits based GAC to be having slightly higher breakthrough and exhaustion capacity.
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Affiliation(s)
- Muhammad Vohra
- Environmental Engineering Program, Civil and Environmental Engineering Department, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran 31261, Saudi Arabia
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38
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Leong ZY, Yang HY. Capacitive Deionization of Divalent Cations for Water Softening Using Functionalized Carbon Electrodes. ACS OMEGA 2020; 5:2097-2106. [PMID: 32064370 PMCID: PMC7016927 DOI: 10.1021/acsomega.9b02330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/24/2019] [Indexed: 05/23/2023]
Abstract
Water softening is a relatively untapped area of research in capacitive deionization (CDI). In this work, we demonstrate how an asymmetric combination of oxidized and aminated carbon can be used for selective removal of divalent cations for water softening. We first show how higher electrosorption performances can be achieved in single-salt experiments involving NaCl, KCl, MgCl2, and CaCl2 before proceeding to multi-salt experiments using different combinations of the four salts. The salt combinations are chosen to investigate one of the three factors: (1) ionic mass, (2) ionic charge, or (3) concentration. We show how divalent selectivity can be achieved due to high local electrostatic attraction between negatively charged oxygen moieties and divalent cations. Additionally, an ion-exchange process between the oxidized carbon surface and cations can result in lower pH values, which prevent the precipitation of scale-forming ions.
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Affiliation(s)
- Zhi Yi Leong
- Pillar of Engineering Product
Development (EPD), Singapore University
of Technology and Design, 8 Somapah Road, Singapore 487372
| | - Hui Ying Yang
- Pillar of Engineering Product
Development (EPD), Singapore University
of Technology and Design, 8 Somapah Road, Singapore 487372
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39
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Activated carbon surface chemistry: Changes upon impregnation with Al(III), Fe(III) and Zn(II)-metal oxide catalyst precursors from NO3− aqueous solutions. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.02.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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40
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Effect of modification by five different acids on pumice stone as natural and low-cost adsorbent for removal of humic acid from aqueous solutions ‐ Application of response surface methodology. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111181] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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41
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DFT investigation for NH3 adsorption behavior on Fe, Ru, and Os-embedded graphitic carbon nitride: promising candidates for ammonia adsorbent. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01747-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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42
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Park JH, Hwang RH, Yoon HC, Yi KB. Effects of metal loading on activated carbon on its adsorption and desorption characteristics. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.03.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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43
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Group 8B transition metal-doped (5,5) boron nitride nanotubes for NH3 storage and sensing: a theoretical investigation. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02403-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Abdelraheem A, H El-Shazly A, Elkady M. Comparable investigation of polyaniline behavior towards gaseous ammonia and toluene adsorption. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:3991-3999. [PMID: 30552613 DOI: 10.1007/s11356-018-3877-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/27/2018] [Indexed: 06/09/2023]
Abstract
With raising awareness of gaseous air pollutants and their harmful impact, adsorption is considered one of the most prominent techniques for gaseous emissions control. The usage of polyaniline as a gas adsorbent is an innovative idea. This work aims to compare the efficacy of synthesized polyaniline nanotubes (PANT) as a novel adsorbent towards inorganic gases (ammonia NH3) and volatile organic compounds (toluene vapor). PANT was prepared via a sol-gel preparation technique. The molecular structure of prepared PANT was characterized by Fourier-transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The morphological structure was confirmed using transmission electron microscopy (TEM) and scanning electron microscope (SEM). The PANT adsorbent surface area was determined using Brunner Emmett Teller (BET). Dynamic behavior of simulated feed gas mixture of NH3 and toluene in air were examined using a fixed bed adsorption arrangement. The same adsorption conditions (inlet concentration, gas mixture feed flow rate, and a fixed amount of adsorbent) were applied for both NH3 and toluene adsorption test. The NH3 and toluene removal efficiencies were 100% and 96% respectively. Consequently, PANT is an auspicious adsorbent that can be utilized to control the indoor and outdoor gaseous air emissions. Graphical Abstracts ᅟ.
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Affiliation(s)
- Amira Abdelraheem
- Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab Alexandria, Egypt.
- Occupational Health and Air Pollution Department, High Institute of Public Health, Alexandria University, Alexandria, Egypt.
| | - Ahmed H El-Shazly
- Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab Alexandria, Egypt
- Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt
| | - Marwa Elkady
- Chemical and Petrochemicals Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab Alexandria, Egypt
- Fabrication Technology Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technology Applications (SRTA City), Alexandria, Egypt
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45
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Li C, Wu S, Yu G, Yang X, Liu G, Zhang W. Removal of Low-concentration Ammonia from Ambient Air by Aluminophosphates. Chem Res Chin Univ 2018. [DOI: 10.1007/s40242-018-7281-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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46
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Namboothiri NV, Soman AR. Consequence assessment of anhydrous ammonia release using CFD‐probit analysis. PROCESS SAFETY PROGRESS 2018. [DOI: 10.1002/prs.11970] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Nandu V. Namboothiri
- Department of Mechanical EngineeringGovernment Engineering CollegeThrissur Kerala 680 009 India
| | - AR Soman
- Department of Mechanical EngineeringGovernment Engineering CollegeThrissur Kerala 680 009 India
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47
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Ryu SH, Kang CW, Choi J, Myung Y, Ko YJ, Lee SM, Kim HJ, Son SU. Microporous Porphyrin Networks Mimicking a Velvet Worm Surface and Their Enhanced Sensitivities toward Hydrogen Chloride and Ammonia. ACS APPLIED MATERIALS & INTERFACES 2018; 10:6815-6819. [PMID: 29439559 DOI: 10.1021/acsami.7b19119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This work shows that the functions of microporous organic network materials can be enhanced through engineering of the material structure. Mimicking the surface structure of velvet worms, we prepared the aligned 1D structure (rod) of microporous porphyrin networks by the Sonogashira coupling of tetrakis(4-ethynylphenyl)porphyrin with 1,4-diiodobenzene in an anodic aluminum oxide plate. The length of the 1D structure was controlled in the range of 1-5 μm. The velvet worm surface-like microporous porphyrin networks (Velvet-MPNs) showed higher sensitivities to hydrogen chloride and ammonia gases by up to ∼14 and 4.6 times, respectively, compared with a control MPN material without rods.
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Affiliation(s)
- Sang Hyun Ryu
- Department of Chemistry, Sungkyunkwan University , Suwon 16419, Korea
| | - Chang Wan Kang
- Department of Chemistry, Sungkyunkwan University , Suwon 16419, Korea
| | - Jaewon Choi
- Department of Chemistry, Sungkyunkwan University , Suwon 16419, Korea
| | - Yoon Myung
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University , Seoul 05006, Korea
| | - Yoon-Joo Ko
- Laboratory of Nuclear Magnetic Resonance, The National Center for Inter-University Research Facilities, Seoul National University , Seoul 08826, Korea
| | - Sang Moon Lee
- Korea Basic Science Institute , Daejeon 34133, Korea
| | - Hae Jin Kim
- Korea Basic Science Institute , Daejeon 34133, Korea
| | - Seung Uk Son
- Department of Chemistry, Sungkyunkwan University , Suwon 16419, Korea
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48
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Li Z, Ma X, Xiong S, Ye Y, Yao Z, Lin Q, Zhang Z, Xiang S. Facile synthesis of oxidized activated carbons for high-selectivity and low-enthalpy CO2 capture from flue gas. NEW J CHEM 2018. [DOI: 10.1039/c8nj00109j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxidized activated carbon obtained using a facile synthetic approach shows high-capacity and low-enthalpy CO2 capture with a selectivity of 48.5 toward flue gas, which is double that of the pristine activated carbon.
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Affiliation(s)
- Ziyin Li
- Fujian Provincial Key Laboratory of Polymer Materials
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Xiuling Ma
- Fujian Provincial Key Laboratory of Polymer Materials
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Shunshun Xiong
- Institute of Nuclear Physics and Chemistry
- China Academy of Engineering Physics
- Mianyang
- P. R. China
| | - Yingxiang Ye
- Fujian Provincial Key Laboratory of Polymer Materials
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Zizhu Yao
- Fujian Provincial Key Laboratory of Polymer Materials
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Quanjie Lin
- Fujian Provincial Key Laboratory of Polymer Materials
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Zhangjing Zhang
- Fujian Provincial Key Laboratory of Polymer Materials
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou 350007
- P. R. China
| | - Shengchang Xiang
- Fujian Provincial Key Laboratory of Polymer Materials
- College of Chemistry and Materials Science
- Fujian Normal University
- Fuzhou 350007
- P. R. China
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49
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Hierarchical pore structure of activated carbon fabricated by CO 2 /microwave for volatile organic compounds adsorption. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2017.04.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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50
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Hu L, Peng Y, Wu F, Peng S, Li J, Liu Z. Tubular activated carbons made from cotton stalk for dynamic adsorption of airborne toluene. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.07.029] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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