Article
Nanoscience & Nanotechnology
Wenhui Shi, Xin Qian, Meiting Xue, Wenbin Que, Xinlong Gao, Dong Zheng, Wenxian Liu, Fangfang Wu, Jiangnan Shen, Xiehong Cao, Congjie Gao
Summary: By using a N-doped porous carbon framework, this study successfully suppressed the performance decay of bismuth and demonstrated the potential for chloride ion storage in capacitive deionization. The Bi/N-PC composite showed excellent chloride storage capacity and water desalination performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Engineering, Chemical
Nguyen Anh Thu Tran, Tran Minh Khoi, Ngo Minh Phuoc, Hye Bin Jung, Younghuyn Cho
Summary: Flow-electrode capacitive deionization (FCDI) is a promising desalination technology that overcomes the limitations of traditional capacitive deionization (CDI) with larger salt removal capacity and continuous operation. The choice of cell configurations and electrode materials in FCDI enhances its salt removal performance and potential applications. Recent advances in Faradaic electrode materials offer higher salt removal rate, lower energy consumption, and selective ion removal. This review provides an overview of FCDI system, with focus on the development and role of capacitive and redox active electrode materials, and discusses its future directions.
Article
Engineering, Environmental
Jin Soo Kang, Seoni Kim, Jiho Kang, Hwajoo Joo, Junghwan Jang, Kyusik Jo, Subin Park, Hyoung-il Kim, Sung Jong Yoo, Jeyong Yoon, Yung-Eun Sung, T. Alan Hatton
Summary: This article thoroughly investigates the surface electrochemistry of carbon electrodes and the Faradaic reactions responsible for the stability issues in capacitive deionization (CDI) systems. By using bare and membrane CDI as model systems, the authors identified various electrochemical reactions of carbon electrodes with water or oxygen, and constructed a complete overview of the Faradaic reactions occurring in CDI.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Energy & Fuels
Muhammad Zia Ullah Shah, Muhammad Sajjad, Hongying Hou, Shams Ur Rahman, A. Shah
Summary: This study investigated the effects of CuS concentration on the structural, morphological, and electrochemical properties of TiO2/CuS nanocomposites, achieving high energy storage performance and superior rate capability in electrode optimization.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Electrochemistry
Thibeorchews Prasankumar, Dong Jae Kang, Minhyung Kim, Hyung-Tae Lim
Summary: A Cu-Zn bimetallic electrode was prepared using electrodeposition technique, and its structural and morphological analyses were conducted. The electrode exhibited a cauliflower-like morphology with voids. Cyclic voltammetry studies confirmed its pseudocapacitive nature and a specific capacitance of 699 F g-1 at a scan rate of 10 mV s-1 was achieved. The electrode also showed excellent capacitance retention and structural stability. The study provides valuable insights into the fabrication and performance enhancement of Cu-Zn bimetallic electrodes.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2023)
Article
Engineering, Chemical
Yu -Hsiang Yang, Yi-Heng Tu, Hung-Yi Huang, Chi -Chang Hu
Summary: A membrane-free hybrid system utilizing battery-type copper hexacyano-ferrate and pseudocapacitive polypyrrole electrodes was developed for faradaic desalination. The system exhibited a significant increase in salt removal capacity and demonstrated efficient removal of other cations.
Article
Environmental Sciences
Yonghwan Kim, Hyunjung Kim, Kwiyong Kim, Ho Hyeon Eom, Xiao Su, Jae W. Lee
Summary: The study demonstrates effective electrochemical uptake and release of cadmium ions using a copper-based metal-organic framework electrode, achieving higher absorption capacity compared to traditional methods. The research presents a reusable platform for efficient removal of Cd2+ and supports further development of Faradaic electrodes for electrochemical wastewater treatment.
Article
Engineering, Environmental
Hailong Liao, Heping Xie, Shuo Zhai, Ling Fu, Yuan Zhang, Senran Hao, Bin Chen, Chuanxin He, Zongping Shao
Summary: Efficient and cost-effective CO2RR perovskite catalyst was developed by partially substituting Fe to the B site of precious metal-free La0.5Sr0.5MnO3 (LSM) perovskite. The Fe-doped catalyst showed improved electrochemical performance, Faraday efficiency, battery durability, and battery power density, making it a promising CO2RR electrocatalyst for Zn-CO2 batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Wenfei Wei, Xuezhen Feng, Zhijie Chen, Ranhao Wang, Hong Chen
Summary: Battery deionization (BDI) based on the Faradaic process has great potential for next-generation desalination applications. The desalination dynamics in BDI electrodes are strongly influenced by the salt concentration in electrolytes. This study systematically investigates the electrochemical desalination dynamics using NaTi2(PO4)(3)@C electrode and reveals the evolution of the desalination mechanism from diffusion-controlled to capacitive charge contribution-dominated process as the NaCl concentration decreases.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Environmental
Heline Chow, Markus Ingelsson, Edward P. L. Roberts, Anh Le-Tuan Pham
Summary: The study found that the faradaic efficiency in PR-EC was always lower than in DC-EC systems, and it progressively decreased as the current reversal frequency increased. The decrease in faradaic efficiency was attributed to increased electrode fouling by iron precipitates and electrochemical side reactions at the electrode-electrolyte interface, with the extent of these effects dependent on solution chemistry. Increasing solution convection rate could mitigate fouling by removing iron and other reactive species from the electrodes.
Article
Engineering, Environmental
Erik R. Reale, Lyle Regenwetter, Adreet Agrawal, Brian Dardon, Nicholas Dicola, Sathvik Sanagala, Kyle C. Smith
Summary: Recirculating effluent from a symmetric cation intercalation desalination cell into brine/diluate reservoirs can achieve high salt removal rates and efficiency. This exceptional performance is achieved through a novel heated, alkaline wet phase inversion process that modulates colloidal forces to increase carbon black aggregation within electrode slurries, resulting in crack-free, high areal-capacity PBA electrodes that are calendered to minimize cell impedance and electrode porosity.
Article
Chemistry, Multidisciplinary
Yao Qin, Hongfei Li, Cuiping Han, Funian Mo, Xin Wang
Summary: A chemical welding strategy to in situ construct a gel electrolyte enables Zn-ion batteries with a well-bonded and water-poor electrode-electrolyte interface, alleviating side reactions and enabling preferential Zn deposition. This approach leads to ultralong lifespan and reversibility in Zn-ion batteries.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Nan He, Haonan Wang, Fan Li, Bo Jiang, Dawei Tang, Lin Li
Summary: We propose an ion-engine hydrovoltaic electricity generator that utilizes an ion concentration gradient in hydrogels to accelerate ion migration and increase the generated current. This generator achieves a record-breaking current density and has potential applications in night-time lighting, sweat monitoring, and powering small unmanned boats.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Materials Science, Ceramics
Prajna P. Mohapatra, Hodam Karnajit Singh, Mangalampalli S. R. N. Kiran, Pamu Dobbidi
Summary: In this study, Co-substituted Ni-Zn ferrites were synthesized, and their structural and magnetic properties were investigated. The results showed that Co substitution led to an increase in crystallite size and lattice constant, as well as a suppression of Raman peak intensity and shift towards a lower wavenumber. The dielectric properties and magnetic response of the samples were also affected by Co substitution. At low temperatures, the Co-substituted ferrites exhibited a giant coercivity and high effective magnetocrystalline anisotropy.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Muhammad Akbar, Afzal Shah, Faiza Jan Iftikhar, Ghulam Ali, HyukSu Han, Gul Rahman
Summary: The research developed a binder-free and non-noble metal-based trimetallic composite electrocatalyst with promising oxygen evolution reaction (OER) performance under alkaline conditions, displaying robust electrochemical durability and great potential for practical applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Applied
Yunxiao Tong, Ying Zang, Senda Su, Yinggui Zhang, Junzhuo Fang, Yongqing Yang, Xiaoman Li, Xiang Wu, Fuming Chen, Jianhua Hou, Min Luo
Summary: This study adopts a strategy of designing hybrid cathodes for efficient aqueous zinc-ion batteries. Methylene blue (MB) intercalated vanadium oxide (HVO-MB) is synthesized through sol-gel and ion exchange methods, and it exhibits high specific capacity, high rate capability, and extraordinary stability in 3 M Zn(CF3SO3)2 aqueous electrolyte. The electrochemical kinetics reveal that HVO-MB has large pseudocapacitance charge storage behavior due to fast ion migration provided by coordination reactions and expanded interlayer distance.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Zhenyu Liu, Xiaoman Li, Senda Su, Wenming Ding, Linghu Meng, Yingying Wang, Mengyao Tan, Min Luo
Summary: Energy band engineering through doping is shown to greatly influence the photocatalytic properties of semiconductors. In this study, a novel Co-doped Bi2MoO6 (Co-BMO) photocatalyst was developed for photocatalytic nitrogen fixation. The Co-BMO with microsphere structure achieved significantly higher NH3 yield and improved separation efficiency of photogenerated carriers due to successful Co2+ doping, leading to enhanced photocatalyst activity.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yunxiao Tong, Ying Zhao, Min Luo, Senda Su, Yongqing Yang, Ying Zang, Xiaoman Li, Lifeng Wang, Junzhuo Fang
Summary: In this study, a mesoporous nano-composite material was successfully synthesized as the cathode material for AZIBs, exhibiting high specific capacity, excellent rate capability, and outstanding long-life cycling performance. The remarkable electrochemical performance is attributed to the heterostructured interface and mesoporous structure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Wenming Ding, Xiaoman Li, Senda Su, Zhenyu Liu, Yue Cao, Linghu Meng, Shengbo Yuan, Wenhui Wei, Min Luo
Summary: Defect engineering is an effective strategy to regulate catalyst properties. This study successfully synthesized titanium vacancy (V-Ti)-rich undoped anatase p-TiO2 to investigate its effect on the performance of photocatalytic nitrogen reduction reaction (NRR). The cation vacancies of V-Ti-rich p-TiO2 enhance carrier separation and transport, activating N-2 and efficiently reducing excited electrons to NH3. This work offers new opportunities and challenges for the design of titanium dioxide-based materials and driving the efficiency of photocatalytic nitrogen fixation processes through altering structural properties.
Article
Chemistry, Physical
Xu Zhang, Xiaoman Li, Senda Su, Mengyao Tan, Guodong Liu, Yingying Wang, Min Luo
Summary: Ultrafine Ag nanoparticles (Ag NPs) were successfully fixed in the cavities of MIL-101(Cr) by the double solvent-photoreduction method, acting as active sites and electron transporters for the photocatalytic nitrogen reduction reaction (PNRR). The hydrophilic cages of MIL-101(Cr) restrained the growth of Ag NPs, while the windows of the cages prevented detachment. LMCT and LSPR effects were responsible for the conversion of N2 to NH3, achieving a high activity of 138.81 μmol g(-1) h(-1), 12 times higher than pure MIL-101(Cr). The mechanism of nitrogen fixation and catalyst stabilization were also investigated and verified.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Mengyao Tan, Xiaoman Li, Senda Su, Linghu Meng, Shengbo Yuan, Yingying Wang, Zhenyu Liu, Min Luo
Summary: This study presents a one-step roasting process to prepare In/In2O3@C photocatalysts with a plume-blossom-like junction structure, where carbon acts as a supporting and protective structure, and In/In2O3 serves for the activation and reduction of N2. The photocatalyst exhibits efficient nitrogen fixation reaction with a performance of 51.83 lmol h-1 g, and the active site for nitrogen fixation reaction is identified as the In3+ around the oxygen vacancy in In2O3. Moreover, the elemental In forms a Schottky barrier with In2O3, generating a built-in electric field for charge transfer channels during photocatalytic activity, which enhances light absorption and exhibits excellent metal conductivity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yue Cao, Shengbo Yuan, Linghu Meng, Yingying Wang, Yan Hai, Senda Su, Wenming Ding, Zhenyu Liu, Xiaoman Li, Min Luo
Summary: This article discusses various intermediates produced during the reaction process, key reaction rate-determining steps, and four common catalyst synthesis strategies. Excessive discharge of nitrate pollutants has caused an imbalance in the nitrogen cycle, threatening human health and ecosystems. Clean electrocatalytic nitrate reduction technology converts nitrate into high value-added ammonia to control water pollution, truly turning waste into treasure. The review highlights the latest mechanisms proposed by combining in situ characterization, and discusses the various intermediates produced during the reaction process and the key steps determining the reaction rate. It also systematically summarizes four common catalyst synthesis strategies, which have shown excellent results in terms of conductivity, active sites, and inhibition of side effects. Finally, the challenges and future development direction of electrocatalytic nitrate reduction into ammonia (NRA) are discussed, along with engineering strategies for increasing electrocatalytic stability and performance. This review aims to provide guidance for efficient electrocatalytic nitrate conversion and promote the advancement of sustainable nitrogen chemistry.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Wenming Ding, Xiaoman Li, Senda Su, Shengbo Yuan, Zhenyu Liu, Yue Cao, Linghu Meng, Yang Yang, Min Luo
Summary: Defect engineering technique of injecting electrons into nitrogen using anion vacancies is promising for activating nitrogen. Schottky junctions can enhance photoelectron utilization efficiency by overcoming electron recombination. In this study, Mo modified MoO3 nanosheets with oxygen vacancies were prepared and the synergetic effects of Schottky junctions and oxygen vacancies on N-2 reduction reaction photocatalytic performance were investigated. The Mo@MoO3 nanosheets showed a nitrogen fixation performance three times higher than commercial MoO3. The advantages of Schottky junctions and oxygen vacancies in improving photocatalytic effects were explored, providing new opportunities for metal oxide-based materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Huiling Hu, Huan Lin, Xuncai Chen, Yupeng Pan, Xuewei Li, Zile Zhuang, Hedong Chen, Xing Wang, Min Luo, Kezhi Zheng, Liguo Zhang, Fuming Chen
Summary: In this study, a composite material Fe, Mn-Prussian blue analogue@MXene was synthesized and exhibited excellent photocatalytic activity in the degradation of tetracycline hydrochloride (TCH) through the activation of perox-ydisulfate (PDS). The composite also demonstrated efficient salt removal and degradation of TCH under visible light irradiation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Linghu Meng, Xiaoman Li, Wenming Ding, Mengyao Tan, Senda Su, Yue Cao, Zhiwen Yu, Shengbo Yuan, Yan Hai, Zhenyu Liu, Min Luo
Summary: The construction of heterojunctions between semiconductors and metal-organic frameworks is an effective strategy for improving photocatalytic nitrogen fixation activity. CAU-17 was added during the synthesis of ZnCdS, resulting in the generation of Bi2S3 on the ZnCdS@CAU-17 heterostructures. The combination of the three catalysts leads to enhanced nitrogen fixation performance, attributed to the carrier of CAU-17 for N2 adsorption and storage, the active site of ZnCdS, and the efficient transport of electrons facilitated by Bi2S3. The photocatalytic nitrogen fixation performance of ZCS@CAU-100 is significantly higher compared to pure CAU-17 and ZnCdS. The composite of Bibased MOF and semiconductor provides new insights for the synthesis of more efficient photocatalysts for nitrogen reduction reactions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Senda Su, Xiaoman Li, Zhenyu Liu, Wenming Ding, Yue Cao, Yang Yang, Qin Su, Min Luo
Summary: The regulation of polyoxometalates (POMs) through transition metal doping method has been shown to improve the efficiency of photocatalytic ammonia synthesis.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Zhenyu Liu, Min Luo, Shengbo Yuan, Linghu Meng, Wenming Ding, Senda Su, Yue Cao, Yingying Wang, Xiaoman Li
Summary: Boron-doped graphene quantum dots (BGQDs) were synthesized and used to prepare bismuth molybdate/boron-doped graphene quantum dots (BGQDs/BMO) heterojunction photocatalysts. The introduction of BGQDs significantly improved the photocatalytic nitrogen fixation activity of BMO under visible light irradiation without scavengers. The highest NH3 yield was achieved with BGQDs/BMO-10, which was 3.48 times higher than pure BMO, attributed to the formation of Z-scheme heterojunctions between BGQDs and BMO and the synergistic mechanism of interfacial charge transport and proton generation. This study provides valuable guidance for enhancing the visible-light nitrogen fixation performance of BMO materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Yingying Wang, Yue Cao, Yan Hai, Xinyan Wang, Senda Su, Wenming Ding, Zhenyu Liu, Xiaoman Li, Min Luo
Summary: By electroreducing Cu metal-organic framework (Cu-MOF) precursors, a polyhedral-supported Cu nanoparticle binder-free monolithic electrode (Cu-BTC-Cu) is synthesized, which displays high ammonia yield and faradaic efficiency, inhibits the release of nitrite, and exhibits favorable stability.
DALTON TRANSACTIONS
(2023)
Review
Chemistry, Physical
Wenming Ding, Shengbo Yuan, Yang Yang, Xiaoman Li, Min Luo
Summary: Defect engineering is an effective strategy for controlling the performance of photocatalysts and electrocatalysts by creating specific catalytic centers and enhancing electron enrichment. This article systematically discusses the role of cationic vacancies in defect engineering and comprehensively summarizes recent research and applications, highlighting the key role of cationic vacancy defect strategies.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Materials Science, Multidisciplinary
Ying Zhao, Yinggui Zhang, Wenhui Wei, Yongqing Yang, Bin Liang, Xiaoman Li, Junzhuo Fang, Min Luo
Summary: Faradaic deionization (FDI) is an effective method for desalination. This research focuses on developing a cathode material for capacitive deionization with high desalination efficiency and stability. The results show that AlVO-350 with interlayer crystalline waters of the hydroxide group exhibits better desalination capacity and cycling stability, while AlVO-550 with a higher ratio of V5+/V4+ has higher desalination capacity and charging efficiency.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
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.
