Desalination最新文献_第4页

Preparation of hydrogen evolution electrode from nickel slag: Crystal surface modulation and selective growth 镍渣制备析氢电极：晶体表面调制和选择性生长

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-16 DOI: 10.1016/j.desal.2024.118269

Yuan Shi , Rongjiao Wang , Xiaofeng Zhu , Dahui Wang , Shuqiang Jiao

{"title":"Preparation of hydrogen evolution electrode from nickel slag: Crystal surface modulation and selective growth","authors":"Yuan Shi , Rongjiao Wang , Xiaofeng Zhu , Dahui Wang , Shuqiang Jiao","doi":"10.1016/j.desal.2024.118269","DOIUrl":"10.1016/j.desal.2024.118269","url":null,"abstract":"<div><div>Hydrogen production from electrolytic water is a key component in realising a hydrogen economy. At the same time, resourceful utilization of nickel slag can reduce environmental and health hazards. The aim of this study is to prepare clean and efficient hydrogen evolution electrodes from nickel slag by modulating the crystal surface of electrolytic catalyst. According to the density functional theory calculations, the crystal surface with the best catalytic properties is Ni (111). Based on the theoretical calculations, this work proposed controlling the reduction order and reduction efficiency of Ni<sup>2+</sup> and H<sub>2</sub>O in the nickel slag leachate during electrolysis to modulation of crystal surface growth of Ni. Moreover, amorphous Ni(OH)<sub>2</sub> was designed to selectively grow in Ni product to further improve the catalytic performance of Ni (1 1 1). The electrodes with the best catalytic performance for hydrogen evolution were obtained when the electrodeposition conditions were 30 min, 0.05 M, and 12.5 mA/cm<sup>2</sup>. A current density of 10 mA/cm<sup>2</sup> was achieved with an overpotential of only 17.46 mV. The Tafel slope was 31.2 mV·dec<sup>−1</sup>. The proposed method is a straightforward and clean approach that does not require membrane addition. At the same time, using nickel slag as raw material can not only reduce the harm of nickel slag to the environment, but also reduce the cost of preparing electrodes. Therefore, this method offers an efficient, environmentally friendly, and cost-effective approach to preparing high-performance catalytic electrodes for hydrogen evolution.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"595 ","pages":"Article 118269"},"PeriodicalIF":8.3,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reverse osmosis process combining energy consumption analysis and mass transfer in the concentration of lithium-enriched brine 在浓缩富锂盐水过程中结合能耗分析和传质的反渗透工艺

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-15 DOI: 10.1016/j.desal.2024.118309

Zhilu Li , Youjing Zhao , Yan Li , Jianjiang Lu , Min Wang

{"title":"Reverse osmosis process combining energy consumption analysis and mass transfer in the concentration of lithium-enriched brine","authors":"Zhilu Li , Youjing Zhao , Yan Li , Jianjiang Lu , Min Wang","doi":"10.1016/j.desal.2024.118309","DOIUrl":"10.1016/j.desal.2024.118309","url":null,"abstract":"<div><div>The recovery and utilization of water resources, as well as the concentration and extraction of high-value ions, are the merits of the reverse osmosis process in exploiting salt lake brine. Herein, we investigated the mechanism influencing the concentration performance of reverse osmosis membranes by considering energy consumption and mass transfer processes in the concentration of lithium-enriched brine. Firstly, different types of reverse osmosis membranes were applied to analyze their impact on flux and ion concentration for various solutions, with a membrane exhibiting a minimum lithium loss having a flux of 66.06 L·m<sup>−2</sup>·h<sup>−1</sup>. Secondly, the membrane with the minimum lithium loss was selected for concentrating lithium-enriched brine. We clarified how solution properties, flow state, and recovery affect solution concentration, ion enrichment, and transmembrane transport during the concentration process. Furthermore, the relationship between ions concentration and energy consumption in the continuous concentration process of reverse osmosis was quantitatively demonstrated by two concentration processes, the enrichment ratio of Li<sup>+</sup> can reach 5.53 when recovery was 80 %. Additionally, we simulated the effects of concentration processes on water flux and ion transport using mathematical expressions combined with irreversible thermodynamic model and concentration polarization model, the mean absolute percentage error was 4.38 % between experimental values and simulated values. This study further elucidates principles related to energy consumption and ion transport in reverse osmosis concentration processes while providing technical support for concentrating high-value ions in brine.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"594 ","pages":"Article 118309"},"PeriodicalIF":8.3,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Convenient-style electrodeionization system with novel configuration and inflow mode for small-scale high purity water preparation 采用新颖配置和流入模式的便捷式电去离子系统，适用于小规模高纯水制备

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-15 DOI: 10.1016/j.desal.2024.118302

Yong Xu , Yeyin Li , Qingbai Chen , Yang Gao , Bingbing He , Jianyou Wang

{"title":"Convenient-style electrodeionization system with novel configuration and inflow mode for small-scale high purity water preparation","authors":"Yong Xu , Yeyin Li , Qingbai Chen , Yang Gao , Bingbing He , Jianyou Wang","doi":"10.1016/j.desal.2024.118302","DOIUrl":"10.1016/j.desal.2024.118302","url":null,"abstract":"<div><div>Electrodeionization (EDI) is a promising sustainable and eco-friendly technology for deep desalination, essential for preparing high purity water (HPW). Its miniaturization and simplification are crucial for the application of small-scale HPW machines in decentralized HPW supply scenarios. In this study, a two-stage Convenient-style EDI (Conv-EDI) system with the countercurrent flow mode and special resin-filling strategy was proposed, which eliminates the need for many components found in conventional EDI systems. The influences of total inflow (Q<sub>tot</sub>), inflow ratio of dilute and concentrate stream (Q<sub>D</sub>/Q<sub>C</sub>), total applied current (I<sub>tot</sub>), and the distribution of current between two stacks (I<sub>1</sub>/I<sub>2</sub>) were studied, respectively. Initially, the inflow pattern had great influence on the back diffusion phenomenon and the competitive electromigration among H<sup>+</sup>, OH<sup>−</sup>, and other ions in the dilute stream. Optimal conditions were determined to be a Q<sub>tot</sub> of 25 L·h<sup>−1</sup> and a Q<sub>D</sub>/Q<sub>C</sub> of 3/2. Meanwhile, the operation mode of the Conv-EDI stack was determined by the applied current, and the optimal I<sub>tot</sub> and I<sub>1</sub>/I<sub>2</sub> were 0.30 A and 1/1, respectively. Furthermore, the system demonstrated excellent long-term stability and anti-scaling performance over 20 days of continuous operation. It could operate stably with raw water containing hardness of ~3.4 mg·L<sup>−1</sup>, and the highest resistivity HPW of 15.52 MΩ·cm could be produced with the energy consumption of ~0.19 kWh·m<sup>−3</sup> and the total process of 2.43 USD·m<sup>−3</sup>. In summary, the Conv-EDI system offers a practical and efficient solution for small-scale HPW production, advancing the miniaturization of EDI technology and potentially transforming decentralized HPW supply systems.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"594 ","pages":"Article 118302"},"PeriodicalIF":8.3,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dissecting spacer induced membrane deformation and fluid hydraulic behavior in reverse osmosis 反渗透中解剖间隔剂诱导的膜变形和流体水力行为

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-14 DOI: 10.1016/j.desal.2024.118315

Rihong Deng , Jiahao Mo , Yang Yang , Zhiqiang Pei , Xianhui Li

引用次数: 0

Enhanced mathematical modeling for optimizing solar stills with AI exploitation 利用人工智能优化太阳能蒸馏器的增强数学建模

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-14 DOI: 10.1016/j.desal.2024.118303

Fatima Belmehdi , Samira Otmani , Mourad Taha Janan

{"title":"Enhanced mathematical modeling for optimizing solar stills with AI exploitation","authors":"Fatima Belmehdi , Samira Otmani , Mourad Taha Janan","doi":"10.1016/j.desal.2024.118303","DOIUrl":"10.1016/j.desal.2024.118303","url":null,"abstract":"<div><div>As global water demand rises, 2.2 billion people face clean water scarcity, exacerbated by climate change. Addressing this, the United Nations' SDG 6 targets sustainable water management. Current technologies for providing water resource vary from natural reserve assessments to advanced treatment methods, including desalination and recycling. The present study focuses on solar still desalination, particularly suitable for off-grid applications due to its integration with renewable energy.</div><div>This paper introduces two innovative <span><span>open-source Python</span><svg><path></path></svg></span> model designated in order to optimize solar stills designs, accounting for various parameters and materials, balancing efficiency and cost. The first one was validated by experimental data, the model accurately predicts performance with a 4 % error margin and the second software adopts an approach allowing machine learning (ML) for data analysis, focusing on clustering and prediction tasks. This algorithm has RMSE of 0.027. This research underscores solar stills' potential in delivering a sustainable, cost-effective solution for areas lacking water infrastructure, thus contributing to achieving SDG 6. The findings advocate for a nuanced approach to material and design choices, and other adjustment such as baffle inclusion or reducing water film thickness, markedly influence output considering both economic and environmental feasibility.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"595 ","pages":"Article 118303"},"PeriodicalIF":8.3,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Facile constructing ZrO2 nanoparticles equipped with high conductivity carbon networks as pseudocapacitive anodes for removing phosphorus 简便构建配备高导电性碳网络的 ZrO2 纳米粒子，作为除磷的伪电容阳极

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-13 DOI: 10.1016/j.desal.2024.118310

Xiang Song , Wenqing Chen , Haiyan Mou , Tianqi Ao

{"title":"Facile constructing ZrO2 nanoparticles equipped with high conductivity carbon networks as pseudocapacitive anodes for removing phosphorus","authors":"Xiang Song , Wenqing Chen , Haiyan Mou , Tianqi Ao","doi":"10.1016/j.desal.2024.118310","DOIUrl":"10.1016/j.desal.2024.118310","url":null,"abstract":"<div><div>Phosphorus pollution can seriously disrupt water quality and endanger ecosystem sustainability. Nonetheless, a few typical methods have been employed to remove phosphorus, but there are still challenges in controlling phosphorus from sewage. Capacitive deionization (CDI) displays the merits of having eco-friendliness and low energy consumption when capturing phosphorus. However, traditional carbon electrodes often suffer from the limitation that phosphorus uptake sites are insufficient. Herein, a novel ZrO<sub>2</sub> nanoparticle equipped with a highly conductive carbon network (NZrC) was fabricated by a facile co-pyrolysis process. Na<sub>2</sub>EDTA can provide additional carbon backbones, N species, and metal chelation sites. Zr-MOF was applied as the ZrO<sub>2</sub> precursor with abundant phosphorus trapping sites. The results suggested that Na<sub>2</sub>EDTA favors improving the ZrO<sub>2</sub> dispersion, mesoporous channel formation, and pseudocapacitive behavior. NZrC-21 at 1.2 V displays low energy consumption and the optimal phosphorus uptake capacity of 10.99 mg P/g because of its rich mesoporous structure, abundant pyrrolic-N, graphitic-N, and ZrO<sub>2</sub> active sites, and outstanding electrochemical properties. Furthermore, several key parameters were investigated for their effect on phosphorus removal performance. The mechanism revealed that hydrogen bonds, ligand exchange, and electrostatic attraction are the main uptake processes. This work presents a novel perspective for the facile construction and utilization of metal oxide nanoparticles equipped with a highly conductive carbon network for removing phosphorus.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"594 ","pages":"Article 118310"},"PeriodicalIF":8.3,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142702542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermo- and light responsive microgels for efficient brackish and seawater forward osmosis desalination 热和光反应微凝胶，用于有效的半咸淡水和海水正向渗透淡化

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-13 DOI: 10.1016/j.desal.2024.118314

Amir Jangizehi , Jan Eckhardt , Karolina Izabela Borkowska , Zsolt Dallos , Melanie Bauer , Hasan Salehi , Reza Razavi , Alireza Shakeri , Seyed Abdollatif Hashemifard , Sebastian Seiffert

{"title":"Thermo- and light responsive microgels for efficient brackish and seawater forward osmosis desalination","authors":"Amir Jangizehi , Jan Eckhardt , Karolina Izabela Borkowska , Zsolt Dallos , Melanie Bauer , Hasan Salehi , Reza Razavi , Alireza Shakeri , Seyed Abdollatif Hashemifard , Sebastian Seiffert","doi":"10.1016/j.desal.2024.118314","DOIUrl":"10.1016/j.desal.2024.118314","url":null,"abstract":"<div><div>Forward osmosis desalination presents a promising solution to address water shortages in areas near brackish or seawater sources. This study investigates the use of thermo-responsive poly(<em>N</em>-isopropyl acrylamide-<em>rand</em>‑sodium acrylate) microgels as innovative draw agents for forward osmosis desalination. The drawing ability and responsiveness of these microgels are significantly influenced by the charged comonomer content. Unlike bulk hydrogels, these microgels, owing to their core-shell morphology, maintain thermo-responsivity even at higher comonomer content. Incorporating graphene oxide as a light absorber allows for partial heating, required to reach the transition temperature, to be obtained using UV light radiation. In forward osmosis, microgels can be used either in a dried state or as a concentrated aqueous dispersion. A sample with 25 mol% charged units achieved a balance between water flux and responsiveness. It reached fluxes of 2.84, 4.79 and 4.39 L·m<sup>−2</sup>·h<sup>−1</sup> for the dried state, 40 wt% and 20 wt% dispersions, respectively, when tested with 5 g·L<sup>−1</sup> brackish water. Furthermore, a 40 wt% dispersion drew 35 g·L<sup>−1</sup> seawater at a flux of 1.36 L·m<sup>−2</sup>·h<sup>−1</sup>. This sample, which contains graphene oxide, exhibited a volume phase transition temperature at 41 °C that can be achieved through UV light radiation or natural sunlight exposure. Water separation from the microgels was accomplished through filtration under UV-light radiation with a power of 4 kW·m<sup>−2</sup>, at 2–4 bar pressure, with a microfiltration membrane and a flux of 36 L·m<sup>−2</sup>·h<sup>−1</sup>. These findings highlight the potential of these thermo-responsive microgels for efficient forward osmosis desalination.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"595 ","pages":"Article 118314"},"PeriodicalIF":8.3,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recovery of lithium carbonate crystals from a high salinity solution using membrane crystallizer with concentration and temperature gradients 利用具有浓度和温度梯度的膜结晶器从高盐度溶液中回收碳酸锂晶体

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-13 DOI: 10.1016/j.desal.2024.118311

Youngkwon Choi , Linitho Suu , Joowan Lim , June-Seok Choi

{"title":"Recovery of lithium carbonate crystals from a high salinity solution using membrane crystallizer with concentration and temperature gradients","authors":"Youngkwon Choi , Linitho Suu , Joowan Lim , June-Seok Choi","doi":"10.1016/j.desal.2024.118311","DOIUrl":"10.1016/j.desal.2024.118311","url":null,"abstract":"<div><div>The increasing global demand for lithium, driven by the rapid expansion of electric vehicles and energy storage systems, underlines the need for efficient lithium recovery technologies. This study explored the potential of using the fractional-submerged membrane distillation crystallizer (F-SMDC) process for recovering lithium carbonate (Li<sub>2</sub>CO<sub>3</sub>) crystals from high-salinity solutions. The F-SMDC integrates membrane distillation and cooling crystallization processes within a single reactor, utilizing concentration gradient (CG) and temperature gradient (TG) to enhance water recovery and resource crystallization. We investigated the behaviors of Li<sub>2</sub>CO<sub>3</sub> crystallization, CG, and TG in presence of sodium sulfate (Na<sub>2</sub>SO<sub>4</sub>). Our results indicated that the low temperature-sensitive solubility of Li<sub>2</sub>CO<sub>3</sub> is the current challenge for CG generation, as Li<sub>2</sub>CO<sub>3</sub> crystallization tends to occur at the top of the reactor (at higher temperatures). Addition of Na<sub>2</sub>SO<sub>4</sub> facilitated CG generation, improving the overall performance of the F-SMDC process for Li<sub>2</sub>CO<sub>3</sub> crystallization at the bottom of the reactor. However, issues such as Li<sub>2</sub>CO<sub>3</sub> crystal deposition on the membrane surface, changes in the CG tendency, and flux stabilization timing were observed. Thus, although F-SMDC shows promise for Li<sub>2</sub>CO<sub>3</sub> recovery from high-salinity solutions, further process optimization is necessary to address the challenges of Li<sub>2</sub>CO<sub>3</sub> crystallization and membrane fouling. Potential integration of additional crystallization techniques could enhance selectivity and recovery efficiency.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"594 ","pages":"Article 118311"},"PeriodicalIF":8.3,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalytic chitosan/MXene/GO nanocomposite membrane for removing dye and heavy metals 用于去除染料和重金属的壳聚糖/MXene/GO 纳米复合催化膜

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-12 DOI: 10.1016/j.desal.2024.118313

Chao Yu , Long D. Nghiem , Linda Zou

{"title":"Catalytic chitosan/MXene/GO nanocomposite membrane for removing dye and heavy metals","authors":"Chao Yu , Long D. Nghiem , Linda Zou","doi":"10.1016/j.desal.2024.118313","DOIUrl":"10.1016/j.desal.2024.118313","url":null,"abstract":"<div><div>This work reported the preparation of a catalytic nanocomposite nanofiltration (NF) membrane and its performance in removing dye and heavy metals without requiring UV irradiation. Two-dimensional (2D) materials MXene and graphene oxide (GO) were employed in developing chitosan-based catalytic nanocomposite membranes for the removal of dye molecules and heavy metals from textile industry wastewater. The incorporated MXene catalytically decomposed the hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) and generating reactive oxygen species (ROS), which oxidize methylene blue (MB) and reduce cobalt (Co<sup>2+</sup>) and copper (Cu<sup>2+</sup>) ions. The electron paramagnetic resonance spectroscopy and fluorescence emission spectroscopy confirmed the generation of superoxide radicals (<sup>•</sup>O<sub>2</sub><sup>−</sup>). The fabricated chitosan/MXene/GO (CMG) membrane in this research exhibited high removal efficiencies of 96 %, 78 % and 76 % for dye, cobalt ions and copper ions, which were 4, 3.9 and 4 times higher than that of neat membrane, respectively. Similar results of 95 % were also observed in total organic matter (TOC) removal for both concentrations of dye. The CMG membrane also showed superior organic fouling resistance. The findings provided a new insight for non-UV dependent catalytic nanocomposite NF to efficiently remove hazardous contaminants such as dye and heavy metals from industrial effluent.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"594 ","pages":"Article 118313"},"PeriodicalIF":8.3,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amino acid-based nanoparticles-incorporated thin-film nanocomposite forward osmosis membranes for efficient desalination and heavy metal ions rejection 用于高效脱盐和重金属离子阻隔的氨基酸基纳米微粒包合薄膜纳米复合正渗透膜

IF 8.3 1区工程技术

Desalination Pub Date : 2024-11-12 DOI: 10.1016/j.desal.2024.118312

Arshad Bayrami , Mojtaba Bagherzadeh , Mojtaba Amini , Farzad Seidi

{"title":"Amino acid-based nanoparticles-incorporated thin-film nanocomposite forward osmosis membranes for efficient desalination and heavy metal ions rejection","authors":"Arshad Bayrami , Mojtaba Bagherzadeh , Mojtaba Amini , Farzad Seidi","doi":"10.1016/j.desal.2024.118312","DOIUrl":"10.1016/j.desal.2024.118312","url":null,"abstract":"<div><div>The current study explores potential applications of state-of-the-art thin-film nanocomposite forward osmosis (TFN-FO) membranes, modified with histidine-functionalized graphene quantum dots (His-GQDs) and MIP-202(Zr) nanoparticles (NPs), for sustainable desalination and heavy metal ions rejection. The porous and layered structure of the applied NPs, along with various hydrophilic functional groups on their surface, contribute to improving the fabricated membranes' ion/water separation performance. The successful preparation and incorporation of desired NPs into the polyamide layer was investigated using typical analytical methods. Under the common FO test conditions, the best-performing TFN-MQ<sub>2</sub> membrane displayed a water flux of 21.8 LMH, which was over 1.5 times greater than the water flux of blank TFC. Simultaneously, the selectivity was found to be approximately 1.7 times greater than that of the unmodified TFC membrane. Moreover, the optimal TFN-MQ<sub>2</sub> membrane exhibited superior rejection rates for Cu<sup>2+</sup> ions (98.5 %) and Pb<sup>2+</sup> ions (98.1 %), surpassing all other samples in heavy metal ion rejection. The findings of this study suggest that carefully choosing cost-efficient and eco-friendly nanofillers (such as amino acid-based NPs) can enhance the desalination performance of TFN-FO membranes and bolster their resistance to fouling and rejection of heavy metal ions. Not to mention, the overall costs of membrane production will be reduced.</div></div>","PeriodicalId":299,"journal":{"name":"Desalination","volume":"594 ","pages":"Article 118312"},"PeriodicalIF":8.3,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0