Article
Nanoscience & Nanotechnology
Laszlo Szabo, Xingtao Xu, Koichiro Uto, Joel Henzie, Yusuke Yamauchi, Izumi Ichinose, Mitsuhiro Ebara
Summary: The study focuses on the relationship between the structure and electrochemical performance of porous carbon nanofibers (PCNFs) derived from the biobased building block chitosan. The researchers found that by varying the amount and molecular weight of the sacrificial pore-forming polymer, they could tailor the structure of the PCNFs to have a high surface area and hierarchical pore network, resulting in fast ion diffusion, high specific capacitance, and rate capability. The chitosan-based materials demonstrated high stability and charge efficiency, making them promising for use in charge storage devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Chemical
Su-Mei Zheng, Bing Li, Zhi-Hua Yuan, Jia-Cheng E. Yang, Jian Zhang, Lu-Bin Zhong, Yu-Ming Zheng
Summary: Excessive fluoride in water is a global public health problem, but efficient and affordable defluorination technology is lacking, especially for low concentration F- wastewater. A zinc oxide nanosheet decorated self-supporting hierarchical porous wood carbon (ZnO/HPWC) electrode was prepared for membrane capacitive deionization (MCDI) and defluorinated wastewater effectively. The defluorination performance of ZnO/HPWC was due to the chemical interaction between F- and ZnO nanosheets, and the pseudocapacitance offered by ZnO nanosheets dominated over the electric double layer capacitance by HPWC.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Huizhong Zhang, Jiayu Tian, Xiangke Cui, Jiansheng Li, Zhigao Zhu
Summary: In capacitive deionization, porous carbon with high specific surface area has attracted attention due to its abundant active adsorption sites. In this study, a highly mesoporous carbon nanofiber electrode was prepared, which showed high salt adsorption capacity and improved electrical double-layer capacitance.
Article
Chemistry, Physical
Fan Zhao, Yaning Zhang, Siqi Gong, Huiting Xu, Junjie Qi, Honghai Wang, Chunli Li, Wenchao Peng, Jiapeng Liu
Summary: In this work, a porous bismuthene/MXene (P-Bi-ene/MXene) heterostructure was synthesized using a simple interfacial self-assembly method. The heterostructure demonstrated high desalination capacity, fast desalination rate, and good cycling performance, providing inspirations for the development of high-performance electrode materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Applied
Minjun Kim, Hyunsoo Lim, Xingtao Xu, Md Shahriar A. Hossain, Jongbeom Na, Nur Nadia Awaludin, Jagrat Shah, Lok Kumar Shrestha, Katsuhiko Ariga, Ashok Kumar Nanjundan, Darren J. Martin, Joseph G. Shapter, Yusuke Yamauchi
Summary: Biomass-derived carbons are widely studied as cost-effective energy storage materials with high performance due to their high specific surface area and the effectiveness of strategies like increasing surface area and introducing heteroatom doping. Porous carbon materials derived from sorghum stem show significantly higher specific capacitance after KOH activation, demonstrating their versatility in applications like capacitive deionization. The performance trend observed in both supercapacitors and CDI for all carbon samples is consistent due to the exploitation of carbon material's electrostatic double-layer capacitance behavior.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Chemical
Mingming He, Mingzhu Zong, Peng Zhang, Silu Huo, Xueli Zhang, Xue Song, Kexun Li
Summary: In this study, nitrogen-doped porous carbon (NPC) was synthesized and facilely activated to obtain hierarchical porous carbon (KNPC) for capacitive deionization (CDI) desalination. The optimized KNPC exhibited outstanding desalination performance and regeneration performance, which can be attributed to its abundant pore structures, large specific surface area, and excellent electrochemical properties.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Wei Zhang, Can Jin, Zhenyu Shi, Liang Zhu, Lin Chen, Yunlong Liu, Hao Zhang
Summary: In this study, nitrogen-doped polyporphyrin derived porous carbons (NPPCs) were prepared by a one-pot reaction from biobased furan derivative, followed by activation, for efficient capacitive deionization. The NPPCs exhibited cross-linked interconnected nanosphere chain-like structures and a rich pore structure, resulting in high specific surface area and large pore volume. The electrochemical measurements showed good conductivity, outstanding stability, and extraordinary specific capacitance of NPPCs. The NPPC-800 electrodes demonstrated high salt adsorption capacity and outstanding cycling stability in desalination tests, indicating the potential of biobased porous carbon material in CDI technique.
Article
Engineering, Chemical
Jiaze Weng, Shiyong Wang, Gang Wang, Peixin Zhang, Bing Lu, Haoliang Wang, Jun Jiang, Changping Li
Summary: By crosslinking chitosan with glutaraldehyde, a stable three-dimensional network structure was achieved, enhancing the adsorption capacity and ion exchange membrane of the anode in CDI system.
Article
Engineering, Chemical
Chunyu Chen, An Liu, Chi Fei, Bin Hui, Yingying Li, Deng Guan, Dianchun Ju
Summary: This study presents a scalable and eco-friendly process for the preparation of N-doped polyhedral macrotube carbon arrays. These arrays exhibit a high density of adsorption sites and good conductivity, making them suitable for use as electrodes in both supercapacitors and capacitive deionization cells. The N-ALS electrodes demonstrate high specific capacitance and excellent cycling stability in supercapacitors, as well as a high salt adsorption capacity and retention rate in capacitive deionization cells.
Article
Materials Science, Ceramics
Mamta Sham Lal, Ramaprabhu Sundara
Summary: This research developed a flexible electrode based on electrospun porous carbon nanofibers and TiO2 nanoparticles, and synthesized the PCNFs/TiO2 composite through a simple in-situ activation procedure. The composite exhibited a high specific surface area and pore volume, and the CDI unit assembled with the flexible electrodes demonstrated excellent salt electrosorption capacity and stability in high salt concentration and conductivity solutions, making it a promising option for future flexible CDI applications.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Hai Deng, Ziquan Wang, Minjun Kim, Yusuke Yamauchi, Stephen J. Eichhorn, Maria-Magdalena Titirici, Libo Deng
Summary: Capacitive deionization (CDI) is a promising technique for removing and recycling ions from wastewater. In this study, the co-ion expulsion effect and anode oxidation issues are addressed through material and system optimization. Porous carbons are prepared using biomass and KOH, and nitrogen-doping is found to influence the surface charge. An asymmetric CDI system with E-pzc matching is constructed, achieving high adsorption capacity and ion removal.
Article
Engineering, Chemical
Samuel Ntakirutimana, Wei Tan
Summary: The study found that using dual surfactants on inverted CDI electrodes can significantly enhance capacitive performance, with nonionic surfactants working synergistically with ionic surfactants. Analysis showed that surfactant loading reduces pore volume and specific surface of activated carbon, affecting its surface chemistry. The research highlights the beneficial effects of the synergy between ionic and nonionic surfactants on the performance of i-CDI electrodes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Electrochemistry
Boshuang Zhang, Jingjing Li, Bin Hu, Yiwen Wang, Xiaohong Shang, Pengfei Nie, Jianmao Yang, Jianyun Liu
Summary: In this study, ultrathin 8-MnO2 nanosheets were successfully embedded on electrospun porous carbon nanofibers (PCNF) to create flexible 8-MnO2@PCNFs electrodes. These electrodes exhibited high specific capacitance and ultrafast adsorption speed in capacitive deionization (CDI). The interconnected structure of 8-MnO2 nanosheets inserted in PCNF also provided excellent recycling stability in CDI devices.
ELECTROCHIMICA ACTA
(2023)
Article
Engineering, Chemical
Shoujun Wang, Dezhi Chen, Zhi-Xia Zhang, Yi Hu, Hongying Quan
Summary: N-doped hierarchically porous carbons with excellent adsorption capacity and fast ion transport capability were prepared and used as CDI electrode materials for efficient removal of heavy metal pollutants from water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Xinyi Gong, Shizhan Feng, Luxiang Wang, Dianzeng Jia, Nannan Guo, Mengjiao Xu, Lili Ai, Qingtao Ma, Qing Zhang, Zuyun Wang
Summary: Defect engineering is an effective approach for modulating the properties of carbon materials, and defect-rich hierarchical porous carbon (IHPC) fabricated through sol-gel method shows high desalination capacity and stability in capacitive deionization applications. The introduction of intrinsic defects optimizes the distribution of electron density and enhances saline ions adsorption. IHPC exhibits abundant adsorption sites, rapid charge transfer kinetics, and rapid ion diffusion.
Article
Chemistry, Physical
Zhengzheng Xie, Xiaohong Shang, Jianmao Yang, Bin Hu, Pengfei Nie, Wenwen Jiang, Jianyun Liu
Article
Engineering, Environmental
Wei Shi, Pengfei Nie, Guodong Zhu, Bin Hu, Jianmao Yang, Jianyun Liu
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Electrochemistry
Pengfei Nie, Junbin Yan, Guodong Zhu, Jianyun Liu
ELECTROCHIMICA ACTA
(2020)
Article
Engineering, Environmental
Jialing Song, Manhong Huang, Nan Jiang, Shengyang Zheng, Tianwei Mu, Lijun Meng, Yanbiao Liu, Jianyun Liu, Gang Chen
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Chemistry, Analytical
Qian Tang, Guodong Zhu, Yuanxin Ge, Jianmao Yang, Manhong Huang, Jianyun Liu
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Analytical
Guodong Zhu, Qian Tang, Manhong Huang, Jianmao Yang, Ran Xu, Jianyun Liu
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Physical
Bin Hu, Yanbo Wang, Xiaohong Shang, Kaibing Xu, Jianmao Yang, Manhong Huang, Jianyun Liu
Summary: By tuning the Fe content in the Fe-CNF precursor, Mn3O4-Fe3O4@C hybrids with different structures were synthesized, exhibiting enhanced capacitor performance due to their excellent conductivity and redox properties.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Bin Hu, Xiaohong Shang, Pengfei Nie, Boshuang Zhang, Kaibing Xu, Jianmao Yang, Jieshan Qiu, Jianyun Liu
Summary: A nitrogen-doped nanotubular carbon aerogel with high porosity was synthesized through a simple in situ template-growth approach using melamine-cyanuric acid supramolecular aggregates. It showed a unique one-dimensional structure with high N content, superhigh specific surface area, large internal diameter, and uniform wall thickness. The aerogel exhibited a superior specific capacitance of 563 F g(-1) at 1 A g(-1) and a high energy density of 21 Wh kg(-1) at a power density of 1217 W kg(-1) as an electrode material for supercapacitors.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Zhaoyu Tang, Xiaohong Shang, Bin Hu, Pengfei Nie, Wei Shi, Jianmao Yang, Jianyun Liu
Summary: A versatile method for growing a series of metal hexacyanoferrates on carbon nanofiber was proposed, resulting in high stability composites with excellent electrochemical performance. The obtained self-supporting composites showed high specific capacitance and remarkable rate performance, indicating great potential for high performance supercapacitors.
Article
Chemistry, Analytical
Xiaoyuan Zhu, Guodong Zhu, Yuanxin Ge, Boshuang Zhang, Jianmao Yang, Bin Hu, Jianyun Liu
Summary: A hybrid of amino-containing Fe-based metal-organic frameworks decorated with gold nanoparticles was successfully fabricated via a simple adsorption/reduction method. The composite showed good charge transfer properties and high sensitivity for As(III) detection, with excellent repeatability and selectivity in real water samples.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Xiaohong Shang, Jianyun Liu, Bin Hu, Pengfei Nie, Jianmao Yang, Boshuang Zhang, Yiwen Wang, Fei Zhan, Jieshan Qiu
Summary: A two-step strategy is reported to fabricate highly conductive and stable CNT-strung LiMn2O4 (CNT-s-LMO) electrode by stringing Mn3O4 particles with CNT and then converting the hybrids into CNT-s-LMO through hydrothermal lithiation. The resulting structure of CNT-s-LMO electrode exhibits excellent conductivity, high specific capacitance, and enhanced rate performance. The CNT-s-LMO-based HCDI cell shows a high Li+ extraction percentage in brine and outstanding lithium selectivity with exceptional cycling stability.
Article
Chemistry, Physical
Yongsheng Hu, Bin Hu, Yuanxin Ge, Pengfei Nie, Jianmao Yang, Manhong Huang, Jianyun Liu
Summary: This study presents a method for the selective removal of highly fluoridated water using UiO-66-NH2 synthesized on the surface of porous carbon nanofibers. The UiO-66-NH2 @PCNF electrode demonstrated exceptional adsorption performance and stability, with a high F- removal capacity. The electrode also showed good selectivity for F- over other ions, making it a promising candidate for the purification of fluoride-contaminated water.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Jun Yu, Bin Hu, Pengfei Nie, Xiaohong Shang, Boshuang Zhang, Zhaoyu Tang, Jianmao Yang, Jianyun Liu
Summary: The cobalt-decorated nitrogen-rich carbon material Co@C-NCNTs showed high efficiency in degrading NX, with enhanced electron transfer in the PMS system. The introduction of Zn led to the formation of abundant CNTs with high N-doping, greatly inhibiting the release of cobalt and improving catalytic activity. At the optimal Zn/Co ratio, Co@C-NCNTs delivered 92% removal of NX in 30 min, significantly higher than single Co-MOF based catalyst.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Electrochemistry
Hao Wang, Wenwen Jiang, Pengfei Nie, Bin Hu, Yongsheng Hu, Manhong Huang, Jianyun Liu
Summary: In this study, a new method for defluoridation was developed by synthesizing lanthanum-doped hydroxyapatite-modified three-dimensional reduced graphene oxide. The resulting electrode showed excellent selectivity and high cycle stability for fluoride removal in a capacitive deionization system, achieving a fluoride removal rate of 90.5% with an effluent concentration below the permissible limit of the World Health Organization.
ELECTROCHIMICA ACTA
(2022)
Article
Engineering, Chemical
Arvin Sohrabi, Mousa Meratizaman, Shuli Liu
Summary: This paper simulates and discusses possible solutions to improve the economic and technical performances of a battery-less renewable energy-powered BWRO system under real climate conditions. The study finds that the photovoltaic-based system performs better in terms of specific energy consumption and unused energy ratio.
Article
Engineering, Chemical
Chunlan Pan, Xiaoyin Hu, Vishal Goyal, Theyab R. Alsenani, Salem Alkhalaf, Tamim Alkhalifah, Fahad Alturise, Hamad Almujibah, H. Elhosiny Ali
Summary: This paper introduces a novel waste heat recovery method using the hot flue gas from a ship's engine to produce liquefied hydrogen while meeting the ship's air-conditioning requirement. A comprehensive feasibility assessment is conducted and an artificial neural network with a multiobjective grey wolf optimization method is used for optimization. The findings indicate the highest mean sensitivity index of the flash temperature and the best optimization scenario for exergy efficiency, CO2 emission reduction, and liquefied hydrogen cost.
Article
Engineering, Chemical
Daniele Chinello, Jan Post, Louis C. P. M. de Smet
Summary: In this study, PVDF-based anion-exchange membranes were designed to selectively separate nitrate from chloride. Experimental data showed that increasing the concentration of PVDF enhanced nitrate transport but also increased the membrane electrical resistance. The selectivity of nitrate was found to be independent of the membrane thickness and mainly driven by the increased affinity between the anion and the membrane.
Article
Engineering, Chemical
Umar Noor, Muhammad Fayyaz Farid, Ammara Sharif, Amna Saleem, Zubair Nabi, Muhammad Furqan Mughal, Kiran Abbas, Toheed Ahmed
Summary: Global water scarcity is increasing, and water desalination is an important solution. Multifunctional advanced materials, such as membrane materials and solar-driven desalination, play a crucial role in water desalination. Additionally, these materials can be used for water purification, wastewater treatment, and pollutant elimination.
Article
Engineering, Chemical
Emrah Gumus
Summary: With growing global concerns about climate change and environmental impacts, the use of nuclear energy in naval vessels offers a cleaner and more efficient solution to reduce emissions and address water and energy supply challenges. This study explores a novel system that combines a nuclear-driven supercritical carbon dioxide power cycle with reverse osmosis cogeneration to meet the water and electricity demands in maritime operations, enhancing the sustainability, efficiency, and self-sufficiency of naval vessels. The results indicate that the system has the potential to be a viable and effective solution for naval operations.
Article
Engineering, Chemical
Dao Thi Thanh Huyen, Saikat Sinha Ray, Young -Nam Kwon
Summary: This study focuses on the modification of a commercially available polyamide thin-film composite membrane with a zwitterionic material to enhance its fouling resistance. The modified membrane shows improved salt rejection and reduced permeability compared to the pristine membrane. Fouling tests demonstrate that the modified membrane has a lower fouling ratio and higher recovery ratio. The enhanced antifouling characteristics are attributed to the improved hydrophilicity resulting from the zwitterionic brushes and the salting-in effect.
Article
Engineering, Chemical
Niklas Koeller, Lukas Mankertz, Selina Finger, Christian J. Linnartz, Matthias Wessling
Summary: This study presents a methodology to scale up Flow-electrode Capacitive Deionization (FCDI) technology from lab-scale to pilot-scale systems. By increasing membrane area and using a stacking approach, the FCDI modules were successfully scaled up and achieved a salt transfer rate comparable to lab-scale systems. This provides a foundation for future assessments of energy demand and economics.
Article
Engineering, Chemical
Mona Gulied, Sifani Zavahir, Tasneem Elmakki, Hyunwoong Park, Guillermo Hijos Gago, Ho Kyong Shon, Dong Suk Han
Summary: This study introduces a novel hybrid system that combines direct contact membrane distillation (DCMD) and electrically switched ion exchange (ESIX) to facilitate seawater reverse osmosis (SWRO) brine enrichment and selective lithium recovery.
Article
Engineering, Chemical
Zhiqiang Zhang, Ruifeng Deng, Jiao Zhang, Lu She, Guangfeng Wei, Renyong Jia, Pengyu Xiang, Siqing Xia
Summary: A transmembrane electro-chemisorption system with authigenic acid and base was developed for enhancing ammonia recovery from strong ammonia wastewater. The system efficiently transformed ammonium into free ammonia, which was then adsorbed and recovered through transmembrane chemisorption. This system yielded pure (NH4)2SO4 product and produced valuable byproducts of pure hydrogen and oxygen. Higher applied voltage resulted in better ammonia recovery.
Article
Engineering, Chemical
Alena Popova, Sandrine Boivin, Takuji Shintani, Takahiro Fujioka
Summary: This study aimed to produce a high-integrity RO membrane by forming a polyamide skin layer on a TE support layer, in order to enhance the integrity of the membrane and improve the microbiological safety of potable water reuse.
Article
Engineering, Chemical
Sanjana Yagnambhatt, Saber Khanmohammadi, Jonathan Maisonneuve
Summary: This study investigates the concept of using heat to enhance reverse osmosis (RO) desalination. The effect of temperature on water permeate flux, specific energy, permeate quality, and applied operating pressures is evaluated using an analytical model. The results suggest that under specific conditions, the tradeoff between savings in mechanical pump work and thermal energy input in thermally-enhanced RO can be favorable, leading to overall energy savings.
Article
Engineering, Chemical
Jiangju Si, Chenrui Xue, Shun Li, Linchao Yang, Weiwei Li, Jie Yang, Jihong Lan, Ningbo Sun
Summary: To meet the huge demand for lithium resources, there is an urgent need to develop a new efficient technology for lithium recovery from salt-lake brines. In this study, a selective membrane capacitive deionization system is reported, which achieves high lithium recovery capacity and rate through the use of materials with efficient intercalated pseudo-capacitance and a high specific area porous carbon. The use of a modified thin-coated membrane allows for selective Li+ recovery, and adjusting the concentrations of Li+ and Mg2+ in the feed solution enables higher Li+/Mg2+ selectivity.
Article
Engineering, Chemical
Mohamed R. Salem, R. Y. Sakr, Ghazy M. R. Assassa, Omar A. Aly
Summary: This research proposes a new method of using wasted thermal energies as an additional heating source for solar still distillation units (SSDUs) to increase productivity and reduce pollution and global warming. By testing two SSDUs, the study shows that heating airflow can raise temperatures, enhance freshwater production, and improve system thermal efficiency.
Article
Engineering, Chemical
Qimeng Sun, Miao Sun, Linyan Yang, Yuan Gao, Xinghai Zhou, Lihua Lyu, Chunyan Wei
Summary: This study presents an innovative design and fabrication of a fabric-based conical roll (FCR) evaporator, which enables low-temperature evaporation and achieves high evaporation efficiency with excellent thermal management ability. The evaporator has demonstrated advanced light-harvesting capability and can produce freshwater that meets drinking water standards, showing great potential for applications in desalination and sewage treatment.
Article
Engineering, Chemical
Yidong Zhang, Wangfang Deng, Meiyan Wu, Chao Liu, Guang Yu, Qiu Cui, Pedram Fatehi, Chunlin Xu, Bin Li
Summary: In this study, a novel polydopamine-functionalized lignin-containing pulp foam evaporator with high-efficiency desalination and multi-contaminant adsorption capabilities was designed. The foam evaporator showed excellent light absorption, water absorption, thermal conductivity, and chelation abilities, allowing for solar evaporation and contaminant adsorption synergistically. It also exhibited potential applications in metal ion concentration and contaminated seawater treatments, and demonstrated superior biodegradability compared to poly-styrene foam. This foam material holds promise for developing multifunctional photo-thermal systems for solar-driven water purification.