FlatChem最新文献_第10页

Highly porous Pt3Ni nanosheets for enhanced hydrogen evolution reaction 用于增强氢气进化反应的高孔隙 Pt3Ni 纳米片

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-09-24 DOI: 10.1016/j.flatc.2024.100750

Mrinal Kanti Kabiraz , Hafidatul Wahidah , Jong Wook Hong , Sang-Il Choi

引用次数: 0

In-situ Profiling of Environmental Hazardous Sulfamethoxazole in Aquatic and Artificial Saliva samples Using Perovskite Structured Bismuth Ferrite Incorporated Halloysite Nanotubes 利用包晶结构铋铁氧体掺杂霍洛石纳米管原位分析水生样本和人工唾液样本中的环境有害物质磺胺甲噁唑

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-09-20 DOI: 10.1016/j.flatc.2024.100749

Muthumariappan Akilarasan , Santhiyagu Sahayaraj Rex Shanlee , Shen-Ming Chen , Wasif Farooq , Pichai Christina Ruby Stella

{"title":"In-situ Profiling of Environmental Hazardous Sulfamethoxazole in Aquatic and Artificial Saliva samples Using Perovskite Structured Bismuth Ferrite Incorporated Halloysite Nanotubes","authors":"Muthumariappan Akilarasan , Santhiyagu Sahayaraj Rex Shanlee , Shen-Ming Chen , Wasif Farooq , Pichai Christina Ruby Stella","doi":"10.1016/j.flatc.2024.100749","DOIUrl":"10.1016/j.flatc.2024.100749","url":null,"abstract":"<div><div>Sulfamethoxazole (SMX), a widely used antibiotic, poses significant environmental and health risks due to its persistence and mobility in water systems, potentially leading to antibiotic resistance and ecological harm. Herein, we developed an electrochemical sensor based on Bismuth Ferrite (BiFeO3)/Halloysite Nanotube (BFO/HNT) composite for sensitive and selective SMX detection. The BFO/HNT composite was synthesized via a hydrothermal method and comprehensively characterized using EDS mapping, HRTEM, XRD, FT-IR, and XPS analysis. The BFO/HNT composite enhances the sensor’s performance due to its unique properties, such as increased electrochemical surface area (ECSA) and efficient electron transfer capability. The B-cation (Fe) in the BiFeO3 matrix plays a crucial role in boosting the electrochemical response by facilitating redox reactions. In addition, the HNTs provide a high surface area and excellent adsorption capabilities, which improve the sensor’s sensitivity by facilitating better interaction with SMX molecules. As the results, the prepared sensor demonstrates an impressive linear detection range of 0.01 to 2 µM and 22 to 122 µM, with a detection limit as low as 0.017 µM. Practical applications were validated by detecting SMX in tap water and artificial saliva, achieving high recovery rates of 98.87 % and 99.11 %.</div></div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"48 ","pages":"Article 100749"},"PeriodicalIF":5.9,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142318549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

G-C3N4 tubes decorated with MnMoO4·H2O: Outstanding S-scheme photocatalyst for detoxification of water pollutants upon visible light 用 MnMoO4-H2O 装饰的 G-C3N4 管：利用可见光解毒水污染物的杰出 S 型光催化剂

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-09-14 DOI: 10.1016/j.flatc.2024.100738

Zahra Lahootifar , Aziz Habibi-Yangjeh , Zahra Salmanzadeh-Jamadi , Alireza Khataee

{"title":"G-C3N4 tubes decorated with MnMoO4·H2O: Outstanding S-scheme photocatalyst for detoxification of water pollutants upon visible light","authors":"Zahra Lahootifar , Aziz Habibi-Yangjeh , Zahra Salmanzadeh-Jamadi , Alireza Khataee","doi":"10.1016/j.flatc.2024.100738","DOIUrl":"10.1016/j.flatc.2024.100738","url":null,"abstract":"<div>Recently, the utilization of heterogeneous photocatalysts has been proposed as an effective solution for environmental purification, as one of the solar energy conversion processes, under mild conditions. In this research, MnMoO4·H2O nanoparticles were anchored on tubular g-C3N4 (abbreviated as TGCN) by a one-pot hydrothermal route. The phase structure, electronic environment, spectroscopic characteristics, composition, morphology, surface area, and electrochemical properties of the resultant materials were explored using XRD, XPS, EDX, FESEM, HRTEM, FTIR, PL, photocurrent, EIS, and BET analyses. The photocatalytic activity of TGCN/MnMoO4·H2O (20 %) nanocomposite was 4.25, 5.36, 9.07, 12.4, and 8.84 times better than modified GCN, and 3.91, 2.77, 6.24, 10.9, and 6.82 times higher than MnMoO4·H2O in removals of tetracycline, rhodamine B, methylene blue, methyl orange, and fuchsine pollutants, respectively. The improved visible-light absorption and rapid charge migration/separation between TGCN and MnMoO4·H2O counterparts through S-scheme heterojunction route were the key reasons for the boosted photocatalytic performance. The biocompatibility of solution after decomposition of tetracycline via the growth of wheat seeds was verified. Finally, the stability of the binary TGCN/MnMoO4·H2O (20 %) heterostructure was measured by the stability test after four reuses.</div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"48 ","pages":"Article 100738"},"PeriodicalIF":5.9,"publicationDate":"2024-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Green synthesis of Z-scheme N-doped g-C3N4/Nd-doped ZnO heterostructure by pomegranate waste peel with enhanced photocatalytic performance for organic pollutants removal and antibacterial activity 利用石榴废皮绿色合成 Z 型 N 掺杂 g-C3N4/Nd 掺杂 ZnO 异质结构，提高光催化去除有机污染物的性能和抗菌活性

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-09-10 DOI: 10.1016/j.flatc.2024.100736

Seyed Ali Zargar , Mitra Gharivi , Omid Bagheri , Adrine Malek Khachatourian , Ali Hashemi

{"title":"Green synthesis of Z-scheme N-doped g-C3N4/Nd-doped ZnO heterostructure by pomegranate waste peel with enhanced photocatalytic performance for organic pollutants removal and antibacterial activity","authors":"Seyed Ali Zargar , Mitra Gharivi , Omid Bagheri , Adrine Malek Khachatourian , Ali Hashemi","doi":"10.1016/j.flatc.2024.100736","DOIUrl":"10.1016/j.flatc.2024.100736","url":null,"abstract":"<div>Nowadays, the growing global population and increased industrialization have exacerbated water pollution, posing a significant environmental threat. To tackle this issue, there is an urgent need for effective catalysts to remove pollutants. This study developed a novel N-doped g-C3N4/Nd-doped ZnO (NZ) heterostructure using a green approach by incorporating pomegranate peel waste as a stabilizing and capping agent. Characterization techniques confirmed successful NZ nanohybrid preparation. The synthesized NZ displayed high photocatalytic activity in degrading methylene blue (MB) and tetracycline (TC) pollutants found in wastewater, achieving degradation efficiencies of 95.3 % and 98.3 %, respectively. Meanwhile, it demonstrated satisfactory photostability after five-cycle experiments. The radical trapping experiments revealed that superoxide (<img>O2−) and hydroxyl (<img>OH) are the dominant active species and play an essential role in photocatalytic pollutant deterioration. Additionally, it exhibited suitable antimicrobial activity against Staphylococcus aureus and Vibrio cholerae bacterial strains. The enhanced performance is attributed to the abundant reaction sites of porous N-doped g-C3N4, the photo-redox capability of Nd-doped ZnO, and the efficient charge separation process in the Z-type heterojunction. This work advances sustainable and eco-friendly chemistry for the biosynthesis of organic/inorganic heterojunctions used in pollutant degradation and bacterial disinfection of wastewater.</div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"48 ","pages":"Article 100736"},"PeriodicalIF":5.9,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142239219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of nickel oxide decorated CNTs/GO nanohybrid: A multifunctional electrocatalyst for overall electrochemical water splitting 制备氧化镍装饰的 CNTs/GO 纳米杂化物：用于整体电化学水分离的多功能电催化剂

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-09-07 DOI: 10.1016/j.flatc.2024.100732

Satam Alotibi , Awais Khalid , Eddie Gazo Hanna , Zaid M. Aldhafeeri , Mudassir Hasan , Tuba Al Haq , Abid Ali

{"title":"Fabrication of nickel oxide decorated CNTs/GO nanohybrid: A multifunctional electrocatalyst for overall electrochemical water splitting","authors":"Satam Alotibi , Awais Khalid , Eddie Gazo Hanna , Zaid M. Aldhafeeri , Mudassir Hasan , Tuba Al Haq , Abid Ali","doi":"10.1016/j.flatc.2024.100732","DOIUrl":"10.1016/j.flatc.2024.100732","url":null,"abstract":"<div>Hydrogen production from water as renewable energy resource is vital to fulfil the huge energy demands without any hazardous environmental impact. Pursuing the efficient, durable and economical electrocatalyst other than benchmark expensive materials such as Pt, Ru, and Ir, for water electrolysis is a big challenge to produce the hydrogen as clean fuels. Here, we have successfully decorated nickel oxides nanoparticles over the carbon nanotubes covered by the graphene oxide layers (GO/NiO@CNTs/GO) using a facile hydrothermal method and utilized as electrocatalyst for electrochemical water splitting. The surface morphology and structure was assessed using a variety of analytical techniques, including scanning electron microscopy (SEM), energy dispersive X-rays spectroscopy (EDX) and X-ray diffraction (XRD). As prepared nanohybrid (GO/NiO@CNTs/GO) was utilized as multifunctional electrocatalyst to investigate the water electrolysis potential via different electrochemical techniques including linear sweep voltammetry (LSV), and cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and chronoamperometry. The fabricated electrode exhibited a lower overpotential of 236 mV and 208 mV at the standard current density of 10 mAcm−2 under alkaline and acidic conditions, respectively. Enhanced double layer capacitance (Cdl) and reduced charge transfer resistance (Rct) also showed the boosted performance for the hybrid materials with long term stability. The carbon based nanohybrid (GO/NiO@CNTs/GO) showed the promising potential having multifunctional characteristics including oxygen and hydrogen evolution reactions along with overall electrochemical water splitting.</div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"48 ","pages":"Article 100732"},"PeriodicalIF":5.9,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142173463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ni-incorporated N-doped graphitic carbon derived from pomegranate peel biowaste as an efficient OER and HER electrocatalyst for sustainable water splitting 从石榴皮生物废料中提取的掺杂 N 的掺氮石墨碳可作为高效 OER 和 HER 电催化剂用于可持续水分离

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-09-01 DOI: 10.1016/j.flatc.2024.100733

Madasu Sreenivasulu , Ranjan S. Shetti , Mohammed Ali Alshehri , Nagaraj P. Shetti

{"title":"Ni-incorporated N-doped graphitic carbon derived from pomegranate peel biowaste as an efficient OER and HER electrocatalyst for sustainable water splitting","authors":"Madasu Sreenivasulu , Ranjan S. Shetti , Mohammed Ali Alshehri , Nagaraj P. Shetti","doi":"10.1016/j.flatc.2024.100733","DOIUrl":"10.1016/j.flatc.2024.100733","url":null,"abstract":"<div>The electrochemical energy conversion process must develop effective, long-lasting, and reasonably priced bifunctional electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). In this work, we present a simple, sustainable, economical, and scalable method for the preparation of stable and useful nickel nanoparticles on highly porous graphitic carbon doped with nitrogen. Direct pyrolysis followed by carbonization was used to create robust catalysts at different temperatures in an environment containing nitrogen (N2). The carbon material generated at 600 °C (Ni@NPC-600) shows greater electrochemical efficiency when compared to other catalysts. The synthesized electroactive catalyst Ni@NPC-600 requires a less overpotential 280 mV (114 mV dec−1) for OER and 151 mV (98 mV dec−1) to conduct a HER at 10 mA cm−2 in 1 M KOH. The active catalyst Ni@NPC-600 shows long-lasting robustness over 90 h with a current loss of <3.33 % and <4.9 % for OER and HER respectively. In addition, the overall water disintegration of Ni@NPC-600/NF//Ni@NPC-600/NF was achieved at 1.51 V with a continuous evolution of H2 and O2 at the cathode and anode respectively for approximately 150 h of prolonged robustness with a current reduction of < 4.6 %.</div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100733"},"PeriodicalIF":5.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142136986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toxicity of iron-doped graphene Oxide: Towards eco-friendly carbon-based nanomaterials 掺铁氧化石墨烯的毒性：开发生态友好型碳基纳米材料

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-09-01 DOI: 10.1016/j.flatc.2024.100737

Jana Kofroňová , Adéla Jiříčková , Ondřej Jankovský , Jan Luxa , Abir Melliti , Radek Vurm

{"title":"Toxicity of iron-doped graphene Oxide: Towards eco-friendly carbon-based nanomaterials","authors":"Jana Kofroňová , Adéla Jiříčková , Ondřej Jankovský , Jan Luxa , Abir Melliti , Radek Vurm","doi":"10.1016/j.flatc.2024.100737","DOIUrl":"10.1016/j.flatc.2024.100737","url":null,"abstract":"<div>Incorporating iron nanoparticles into graphene oxide (GO) may enhance its potential for use in various applications. However, alterations to the GO structure could pose a risk to environmental organisms and should therefore be fully understood before their further use. In this paper, we prepared iron-doped graphene oxide from pure graphene oxide and two different iron sources with iron in two different oxidation states. Prepared samples were characterized in detail by SEM, EDS, XRF, Raman spectroscopy, XPS, and TEM. In the next step, these samples were subjected to ecotoxicological evaluation in three model organisms: mustard Sinapis alba, freshwater algae Desmodesmus subspicatus, and saltwater crustaceans Artemia salina. Our results showed a stimulatory effect of iron-doped GO on S. alba seeds and a modest degree of growth inhibition for D. subspicatus when compared to pure GO at a concentration of 100 mg/L. In the case of A. salina, mortality was observed at a concentration of 10 mg/L for all tested nanoparticles. However, the iron-doped nanoparticles exhibited a more than twofold decrease in mortality. Our findings suggest that iron-doped GO have a reduced toxicity compared to pure GO, but further research is necessary to enhance the understanding of their behaviour in the environment.</div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100737"},"PeriodicalIF":5.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142151236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Rise of Ti3C2Tx MXene synthesis strategies over the decades: A review 几十年来 Ti3C2Tx MXene 合成策略的兴起：综述

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-09-01 DOI: 10.1016/j.flatc.2024.100734

Mohammed Askkar Deen, Harish Kumar Rajendran, Ragavan Chandrasekar, Debanjana Ghosh, Selvaraju Narayanasamy

{"title":"The Rise of Ti3C2Tx MXene synthesis strategies over the decades: A review","authors":"Mohammed Askkar Deen, Harish Kumar Rajendran, Ragavan Chandrasekar, Debanjana Ghosh, Selvaraju Narayanasamy","doi":"10.1016/j.flatc.2024.100734","DOIUrl":"10.1016/j.flatc.2024.100734","url":null,"abstract":"<div>The Ti3C2Tx MXene has ignited a wave of excitement in the world of materials science due to its immense potential for diverse applications. However, a deeper understanding of the synthesis processes involved is crucial to unlock their potential. Here we review the various techniques for producing Ti3C2Tx MXene, covering everything from precursor selection to etching-exfoliation and intercalation-delamination steps. Furthermore, we also explore the oxidation stability of Ti3C2Tx and propose a reaction mechanism to help shed light on this critical aspect of Ti3C2Tx MXene. This review begins with the bibliography studies on Ti3C2Tx and then delves into the principle behind the chemical etching process. Followed by various etching strategies used for Ti3C2Tx synthesis and the impact of individual etching parameters on successful synthesis protocols. Finally, we address the challenges that still need to be overcome to fully realize the potential of Ti3C2Tx and highlight the exciting possibilities for its future development. We aim to inspire further research into this cutting-edge material and encourage the synthesis of Ti3C2Tx MXene with even more outstanding performance and a more comprehensive range of applications.</div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100734"},"PeriodicalIF":5.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142151237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photocatalytic activities of graphene quantum dots constructed from four different nitropyrenes on water redox reaction and organic pollutant degradation 用四种不同的硝基苯烯构建的石墨烯量子点在水氧化还原反应和有机污染物降解中的光催化活性

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-09-01 DOI: 10.1016/j.flatc.2024.100735

Jingjing Wang , Ruonan Liu , Yuxin Qiao, Shuxin Liu, Chuanguang Qin

引用次数: 0

3D printing of graphene-based aerogels and their applications 石墨烯基气凝胶的 3D 打印及其应用

IF 5.9 3区材料科学

FlatChem Pub Date : 2024-08-24 DOI: 10.1016/j.flatc.2024.100731

Jiaying Wang , Zhe Shi , Jiani Gong, Xianglin Zhou, Jiaming Li, Zhiyang Lyu

{"title":"3D printing of graphene-based aerogels and their applications","authors":"Jiaying Wang , Zhe Shi , Jiani Gong, Xianglin Zhou, Jiaming Li, Zhiyang Lyu","doi":"10.1016/j.flatc.2024.100731","DOIUrl":"10.1016/j.flatc.2024.100731","url":null,"abstract":"<div>Aerogels, as extraordinarily lightweight and porous functional nanomaterials, have garnered significant interest in both academia and industry over the past few decades. Graphene-based aerogels, in particular, stand out due to their excellent conductivity properties, high specific surface area, and efficient adsorption efficiency. Despite these advantageous properties, aerogels face challenges in mechanical durability, complicating their processing, especially in applications requiring complex structures. 3D printing technology holds promise for overcoming these limitations through its capabilities in microscale manufacturing, rapid prototyping, and arbitrary shaping. This review summarizes the advantages of graphene-based aerogels and compares various 3D printing techniques used for aerogel fabrication. Furthermore, it also highlights the energy and environmental applications of 3D-printed graphene and graphene-based composite aerogels, including batteries, supercapacitors, electromagnetic shielding, sensors, etc. The review concludes with an exploration of current challenges and provides an outlook on future developments in the 3D printing of graphene-based aerogels.</div>","PeriodicalId":316,"journal":{"name":"FlatChem","volume":"47 ","pages":"Article 100731"},"PeriodicalIF":5.9,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142087282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0