Pub Date : 2025-06-01DOI: 10.1016/j.nanoms.2025.06.005
Shu Wang , Jiangling Ning , Jianyu Pu , Changjie Wei , Yuping Yuan , Songqi Yao , Yuantao Zhang , Ziwen Jing , Chenxing Xiang , Xinglong Gong , Zhi Li , Ning Hu
Ionogels have demonstrated substantial applications in smart wearable systems, soft robotics, and biomedical engineering due to the exceptional ionic conductivity and optical transparency. However, achieving ionogels with desirable mechanical properties, environmental stability, and multi-mode sensing remains challenging. Here, we propose a simple strategy for the fabrication of multifunctional silk fabric-based ionogels (BSFIGs). The resulting fabric ionogels exhibits superior mechanical properties, with high tensile strength (11.3 MPa) and work of fracture (2.53 MJ/m3). And its work of fracture still has 1.42 MJ/m3 as the notch increased to 50 %, indicating its crack growth insensitivity. These ionogels can be used as sensors for strain, temperature, and tactile multi-mode sensing, demonstrating a gauge factor of 1.19 and a temperature coefficient of resistance of −3.17/°C-1. Furthermore, these ionogels can be used for the detection of different roughness and as touch screens. The ionogels also exhibit exceptional optical transmittance and environmental stability even at −80 °C. Our scalable fabrication process broadens the application potential of these multifunctional ionogels in diverse fields, from smart systems to extreme environments.
{"title":"Ultrastrong silk fabric ionogel-sensor for strain/ temperature/ tactile multi-mode sensing","authors":"Shu Wang , Jiangling Ning , Jianyu Pu , Changjie Wei , Yuping Yuan , Songqi Yao , Yuantao Zhang , Ziwen Jing , Chenxing Xiang , Xinglong Gong , Zhi Li , Ning Hu","doi":"10.1016/j.nanoms.2025.06.005","DOIUrl":"10.1016/j.nanoms.2025.06.005","url":null,"abstract":"<div><div>Ionogels have demonstrated substantial applications in smart wearable systems, soft robotics, and biomedical engineering due to the exceptional ionic conductivity and optical transparency. However, achieving ionogels with desirable mechanical properties, environmental stability, and multi-mode sensing remains challenging. Here, we propose a simple strategy for the fabrication of multifunctional silk fabric-based ionogels (BSFIGs). The resulting fabric ionogels exhibits superior mechanical properties, with high tensile strength (11.3 MPa) and work of fracture (2.53 MJ/m<sup>3</sup>). And its work of fracture still has 1.42 MJ/m<sup>3</sup> as the notch increased to 50 %, indicating its crack growth insensitivity. These ionogels can be used as sensors for strain, temperature, and tactile multi-mode sensing, demonstrating a gauge factor of 1.19 and a temperature coefficient of resistance of −3.17/°C<sup>-1</sup>. Furthermore, these ionogels can be used for the detection of different roughness and as touch screens. The ionogels also exhibit exceptional optical transmittance and environmental stability even at −80 °C. Our scalable fabrication process broadens the application potential of these multifunctional ionogels in diverse fields, from smart systems to extreme environments.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"7 3","pages":"Pages 316-325"},"PeriodicalIF":9.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-01DOI: 10.1016/j.nanoms.2024.05.001
Simin Sun , Yuan Zhang , Qiyue Gao , Nana Zhang , PingAn Hu , Wei Feng
Self-powered photoelectrochemical-type (PEC) ultraviolet photodetectors (UV PDs) have been rapidly developed owing to their low-cost fabrication and good photodetection. However, achieving high-performance and self-powered PEC UV PDs based on an individual material is still challenging. Therefore, developing more wide bandgap semiconductors for high-performance PEC UV PDs is attractive. Here, we demonstrate that ZnAl-LDH is suitable for self-powered PEC UV PDs with high responsivity and excellent wavelength selectivity for the first time. The responsivity is 29.25 mA/W (254 nm irradiation) and the UV/visible rejection ratio is 1037, surpassing most PEC UV PDs. Furthermore, the PEC UV PDs have fast response, good stability, and underwater optical communication capability. This work offers more chances for the development of high-performance PEC UV PDs and demonstrates the potential application of ZnAl-LDH in underwater optoelectronic devices.
{"title":"ZnAl-LDH film for self-powered ultraviolet photodetection","authors":"Simin Sun , Yuan Zhang , Qiyue Gao , Nana Zhang , PingAn Hu , Wei Feng","doi":"10.1016/j.nanoms.2024.05.001","DOIUrl":"10.1016/j.nanoms.2024.05.001","url":null,"abstract":"<div><div>Self-powered photoelectrochemical-type (PEC) ultraviolet photodetectors (UV PDs) have been rapidly developed owing to their low-cost fabrication and good photodetection. However, achieving high-performance and self-powered PEC UV PDs based on an individual material is still challenging. Therefore, developing more wide bandgap semiconductors for high-performance PEC UV PDs is attractive. Here, we demonstrate that ZnAl-LDH is suitable for self-powered PEC UV PDs with high responsivity and excellent wavelength selectivity for the first time. The responsivity is 29.25 mA/W (254 nm irradiation) and the UV/visible rejection ratio is 1037, surpassing most PEC UV PDs. Furthermore, the PEC UV PDs have fast response, good stability, and underwater optical communication capability. This work offers more chances for the development of high-performance PEC UV PDs and demonstrates the potential application of ZnAl-LDH in underwater optoelectronic devices.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"7 3","pages":"Pages 377-382"},"PeriodicalIF":9.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141131539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The combining microelectronic devices and associated technologies onto a single silicon chip poses a substantial challenge. However, in recent years, the area of silicon photonics has experienced remarkable advancements and notable leaps in performance. The performance of silicon on insulator (SOI) based photonic devices, such as fast silicon optical modulators, photonic transceivers, optical filters, etc., have been discussed. This would be a step forward in creating standalone silicon photonic devices, strengthening the possibility of single on-chip nanophotonic integrated circuits. Suppose an integrated silicon photonic chip is designed and fabricated. In that case, it might drastically modify these combined photonic component costs, power consumption, and size, bringing substantial, perhaps revolutionary, changes to the next-generation communications sector. Yet, the monolithic integration of photonic and electrical circuitry is a significant technological difficulty. A complicated set of factors must be carefully considered to determine which application will have the best chance of success employing silicon-based integrated product solutions. The processing limitations connected to the current process flow, the process generation (sometimes referred to as lithography node generation), and packaging requirements are a few of these factors to consider. This review highlights recent developments in integrated silicon photonic devices and their proven applications, including but not limited to photonic waveguides, photonic amplifiers and filters, on-chip photonic transceivers, and the state-of-the-art of silicon photonic in multidimensional quantum systems. The investigated devices aim to expedite the transfer of silicon photonics from academia to industry by opening the next phase in on-chip silicon photonics and enabling the application of silicon photonic-based devices in various optical systems.
{"title":"The integration of microelectronic and photonic circuits on a single silicon chip for high-speed and low-power optoelectronic technology","authors":"Rajeev Gupta , Ajay Kumar , Manoj Kumar , Rajesh Singh , Anita Gehlot , Purnendu Shekhar Pandey , Neha Yadav , Kailash Pandey , Ashish Yadav , Neha Gupta , Ranjeet Brajpuriya , Shalendra Kumar , Ajay Singh Verma , Tanuj Kumar , Yongling Wu , Zheng Hongyu , Abhijit Biswas , Ajay Mittal , Aniruddha Mondal , Romanov Oleksandr Ivanovich","doi":"10.1016/j.nanoms.2024.04.011","DOIUrl":"10.1016/j.nanoms.2024.04.011","url":null,"abstract":"<div><div>The combining microelectronic devices and associated technologies onto a single silicon chip poses a substantial challenge. However, in recent years, the area of silicon photonics has experienced remarkable advancements and notable leaps in performance. The performance of silicon on insulator (SOI) based photonic devices, such as fast silicon optical modulators, photonic transceivers, optical filters, etc., have been discussed. This would be a step forward in creating standalone silicon photonic devices, strengthening the possibility of single on-chip nanophotonic integrated circuits. Suppose an integrated silicon photonic chip is designed and fabricated. In that case, it might drastically modify these combined photonic component costs, power consumption, and size, bringing substantial, perhaps revolutionary, changes to the next-generation communications sector. Yet, the monolithic integration of photonic and electrical circuitry is a significant technological difficulty. A complicated set of factors must be carefully considered to determine which application will have the best chance of success employing silicon-based integrated product solutions. The processing limitations connected to the current process flow, the process generation (sometimes referred to as lithography node generation), and packaging requirements are a few of these factors to consider. This review highlights recent developments in integrated silicon photonic devices and their proven applications, including but not limited to photonic waveguides, photonic amplifiers and filters, on-chip photonic transceivers, and the state-of-the-art of silicon photonic in multidimensional quantum systems. The investigated devices aim to expedite the transfer of silicon photonics from academia to industry by opening the next phase in on-chip silicon photonics and enabling the application of silicon photonic-based devices in various optical systems.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"7 3","pages":"Pages 305-315"},"PeriodicalIF":9.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141028398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-01DOI: 10.1016/j.nanoms.2024.03.009
Dezhi Jiao , Chengbao Liu , Yujie Qiang , Shuoqi Li , Cong Sun , Peimin Hou , Lanyue Cui , Rongchang Zeng
Coating microdefects and localized corrosion in coating/metal system are inevitable, accelerating the degradation of metal infrastructure. Early evaluating coating microdefects and detecting corrosion sites are urgent yet remain challenge to achieve. Herein, we propose a robust, universal and efficient fluorescence-based strategy for hierarchical warning of coating damage and metal corrosion by introducing the concepts of damage-induced fluorescence enhancement effect (DIE) and ionic-recognition induced quenching effect (RIQ). The coatings with dual-responsiveness for coating defect and steel corrosion are constructed by incorporating synthesized nanoprobes composed of metal organic frameworks (Ni–Zn-MOFs) loaded with Rhodamine B (RhB@MOFs). The initial damage to the coating causes an immediate intensification of fluorescence, while the specific ionic-recognition characteristic of RhB with Fe3+ results in an evident fluorescence quenching, enabling the detection of coating damage and corrosion. Importantly, this nanoprobes are insensitive to the coating matrix and exhibit stable corrosion warning capability across various coating systems. Meanwhile, electrochemical investigations indicate that the impedance values of RM/EP maintain above 108 Ω cm2 even after 60 days of immersion. Therefore, the incorporation of fluorescent nanoprobes greatly inhibits the intrusion of electrolytes into polymer and improves the corrosion protection performance of the coating. This powerful strategy towards dual-level damage warning provides insights for the development of long-term smart protective materials.
{"title":"Ni–Zn bimetal-organic framework nanoprobes reinforced polymeric coating to achieve dual-responsive warning of coating damage and interfacial corrosion","authors":"Dezhi Jiao , Chengbao Liu , Yujie Qiang , Shuoqi Li , Cong Sun , Peimin Hou , Lanyue Cui , Rongchang Zeng","doi":"10.1016/j.nanoms.2024.03.009","DOIUrl":"10.1016/j.nanoms.2024.03.009","url":null,"abstract":"<div><div>Coating microdefects and localized corrosion in coating/metal system are inevitable, accelerating the degradation of metal infrastructure. Early evaluating coating microdefects and detecting corrosion sites are urgent yet remain challenge to achieve. Herein, we propose a robust, universal and efficient fluorescence-based strategy for hierarchical warning of coating damage and metal corrosion by introducing the concepts of damage-induced fluorescence enhancement effect (DIE) and ionic-recognition induced quenching effect (RIQ). The coatings with dual-responsiveness for coating defect and steel corrosion are constructed by incorporating synthesized nanoprobes composed of metal organic frameworks (Ni–Zn-MOFs) loaded with Rhodamine B (RhB@MOFs). The initial damage to the coating causes an immediate intensification of fluorescence, while the specific ionic-recognition characteristic of RhB with Fe<sup>3+</sup> results in an evident fluorescence quenching, enabling the detection of coating damage and corrosion. Importantly, this nanoprobes are insensitive to the coating matrix and exhibit stable corrosion warning capability across various coating systems. Meanwhile, electrochemical investigations indicate that the impedance values of RM/EP maintain above 10<sup>8</sup> Ω cm<sup>2</sup> even after 60 days of immersion. Therefore, the incorporation of fluorescent nanoprobes greatly inhibits the intrusion of electrolytes into polymer and improves the corrosion protection performance of the coating. This powerful strategy towards dual-level damage warning provides insights for the development of long-term smart protective materials.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"7 3","pages":"Pages 326-339"},"PeriodicalIF":9.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140771024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-01DOI: 10.1016/j.nanoms.2024.04.015
Niyaz Mohammad Mahmoodi, Seyed Behnam Bagherzadeh
Herein, binary and ternary MOF/carbon based composites (MOF/Carbon nitride/Graphene oxide) (novel binary (NH2-MIL-88B(Fe)/g-C3N4) (MOF/Carbon nitride) and ternary (NH2-MIL-88B(Fe)/g-C3N4/GO) (MOF/Carbon nitride/Graphene oxide) composites) were synthesized and used as photocatalysts for the elimination of Direct Red 23 (D-Red23) and Tetracycline Hydrochloride (TC-H). NH2-MIL-88B(Fe)/g-C3N4/GO (MILB/g/GO) ternary composites with three different amounts of GO including 3, 7, and 11 wt% were synthesized and denoted as MILB/g/(3%)GO, MILB/g/(7%)GO, and MILB/g/(11%)GO. g-C3N4 and GO (with three different amounts 3, 7, and 11 wt%) were incorporated to synthesize MILB/g/(3%)GO, MILB/g/(7%)GO and MILB/g/(11%)GO ternary composites. Several analyses were used to characterize the materials. The MILB/g/(3%)GO demonstrated the highest pollutant degradation efficiency. The degradation rate of dye and Tetracycline after 70 min of light radiation using MILB/g/(3%)GO in a photo-Fenton-like reaction was about 99% and 96%, respectively. The creation of a heterojunction structure using g-C3N4, and the simultaneous incorporation of the optimum amount of GO led to a remarkable amelioration in photocatalytic properties and the extraordinary performance of MILB/g/(3%)GO in the pollutants degradation process.
{"title":"Synthesis of binary and ternary MOF/carbon based composites (MOF/carbon nitride/graphene oxide) for the visible-light assisted destruction of tetracycline and textile dye","authors":"Niyaz Mohammad Mahmoodi, Seyed Behnam Bagherzadeh","doi":"10.1016/j.nanoms.2024.04.015","DOIUrl":"10.1016/j.nanoms.2024.04.015","url":null,"abstract":"<div><div>Herein, binary and ternary MOF/carbon based composites (MOF/Carbon nitride/Graphene oxide) (novel binary (NH<sub>2</sub>-MIL-88B(Fe)/g-C<sub>3</sub>N<sub>4</sub>) (MOF/Carbon nitride) and ternary (NH<sub>2</sub>-MIL-88B(Fe)/g-C<sub>3</sub>N<sub>4</sub>/GO) (MOF/Carbon nitride/Graphene oxide) composites) were synthesized and used as photocatalysts for the elimination of Direct Red 23 (D-Red23) and Tetracycline Hydrochloride (TC-H). NH<sub>2</sub>-MIL-88B(Fe)/g-C<sub>3</sub>N<sub>4</sub>/GO (MILB/g/GO) ternary composites with three different amounts of GO including 3, 7, and 11 wt% were synthesized and denoted as MILB/g/(3%)GO, MILB/g/(7%)GO, and MILB/g/(11%)GO. g-C<sub>3</sub>N<sub>4</sub> and GO (with three different amounts 3, 7, and 11 wt%) were incorporated to synthesize MILB/g/(3%)GO, MILB/g/(7%)GO and MILB/g/(11%)GO ternary composites. Several analyses were used to characterize the materials. The MILB/g/(3%)GO demonstrated the highest pollutant degradation efficiency. The degradation rate of dye and Tetracycline after 70 min of light radiation using MILB/g/(3%)GO in a photo-Fenton-like reaction was about 99% and 96%, respectively. The creation of a heterojunction structure using g-C<sub>3</sub>N<sub>4</sub>, and the simultaneous incorporation of the optimum amount of GO led to a remarkable amelioration in photocatalytic properties and the extraordinary performance of MILB/g/(3%)GO in the pollutants degradation process.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"7 3","pages":"Pages 359-376"},"PeriodicalIF":9.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141143083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-28DOI: 10.1016/j.nanoms.2025.03.007
Qiuheng Wang , Guanyu Wu , Pengfei Zheng , Luye Pan , Zhao Mo , Peipei Sun , Xianglin Zhu , Yaqi Han , Songmei Wang , Hui Xu
Photocatalysis is one of the most promising technologies for solving environmental and energy problems, but current photocatalysts still suffer from low visible light utilization and insufficient photogenerated charge separation efficiency. Therefore, in this work, D-A tubular materials with tubular carbon nitride (TCN) as electron donor (D) and 2-mercaptobenzothiazole (BZ) as electron acceptor (A) were constructed by molecular doping and modulation of the carbon nitride geometry. It was shown that the introduction of BZ could modulate the electronic structure of the catalyst, promote electron migration from TCN to BZ, and inhibit the recombination of photogenerated electrons and holes. Meanwhile, the ultra-thin tubular structure could expose more active sites. In addition, the adsorption of protons by BZ-TCN was further improved due to the modulation of the charge distribution between the components by the introduction of small molecules. Among them, the photocatalytic hydrogen production rate of BZ0.1-TCN was twice that of TCN. The in-depth discussion of the components through theoretical calculations and characterization tests contributes to the understanding of the mechanism of photocatalytic hydrogen production.
{"title":"Rational design of donor-acceptor structured tubular carbon nitride modulates charge distribution for photocatalytic hydrogen evolution","authors":"Qiuheng Wang , Guanyu Wu , Pengfei Zheng , Luye Pan , Zhao Mo , Peipei Sun , Xianglin Zhu , Yaqi Han , Songmei Wang , Hui Xu","doi":"10.1016/j.nanoms.2025.03.007","DOIUrl":"10.1016/j.nanoms.2025.03.007","url":null,"abstract":"<div><div>Photocatalysis is one of the most promising technologies for solving environmental and energy problems, but current photocatalysts still suffer from low visible light utilization and insufficient photogenerated charge separation efficiency. Therefore, in this work, D-A tubular materials with tubular carbon nitride (TCN) as electron donor (D) and 2-mercaptobenzothiazole (BZ) as electron acceptor (A) were constructed by molecular doping and modulation of the carbon nitride geometry. It was shown that the introduction of BZ could modulate the electronic structure of the catalyst, promote electron migration from TCN to BZ, and inhibit the recombination of photogenerated electrons and holes. Meanwhile, the ultra-thin tubular structure could expose more active sites. In addition, the adsorption of protons by BZ-TCN was further improved due to the modulation of the charge distribution between the components by the introduction of small molecules. Among them, the photocatalytic hydrogen production rate of BZ<sub>0.1</sub>-TCN was twice that of TCN. The in-depth discussion of the components through theoretical calculations and characterization tests contributes to the understanding of the mechanism of photocatalytic hydrogen production.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"8 1","pages":"Pages 234-243"},"PeriodicalIF":17.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146057505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-01DOI: 10.1016/j.nanoms.2024.04.005
Tarab Fatima, Samina Husain, Manika Khanuja
The endocrine-disrupting chemicals (EDCs) and antibiotics are causing negative effects on human beings and animals by disrupting the endocrine system and spreading antimicrobial resistance. The current need is to eradicate pharmaceutical waste from water bodies using advanced catalytic systems with high efficiency. Novel ternary carbon quantum dots (CQDs) decorated Z-Scheme WS2-PANI nanocomposite was prepared by a green synthesis assisted in-situ polymerization for the photodegradation and detection of Estradiol (EST) and Nitrofurantoin (NFT). HRTEM micrographs revealed the formation of CQDs with a mean size of 4 nm anchored on the surface of WS2/PANI (width:PANI ∼ 20–30 nm). The ternary nanocomposite showed excellent photocatalytic activity, degraded NFT (95.7 % in 60 min), and EST (96.6 % in 60 min). The rate kinetics study confirms the reaction followed pseudo first-order model. This heterostructure exhibited enhanced performances by modulating the energy level configuration, enhancing the absorption of visible light (2.4 eV), and significantly improving the charge separation, three times higher than pristine WS2. These are highly favorable for increasing the generation of photoinduced charges and enhancing the overall performance of the catalyst. Further, the electrochemical sensor was prepared using CQDs@WS2/PANI nanocomposite on a paper-based electrode. The CQDs@WS2/PANI exhibit a linear response of 0.1–100 nM, with a limit of detection of 13 nM. This synergistic interfacial interaction resulted in the significantly improved electrochemical performance of the modified electrode. The proposed Z-scheme was justified by electron paramagnetic resonance (EPR) and scavenger experiment. An intermediate degradation pathway was also proposed. The synthesized materials were characterized using FESEM, HRTEM, XRD, FTIR, XPS, UV-visible spectroscopy, PL, and TRPL. Therefore, this study provides a direct approach to fabricate a heterojunction that combines two-dimensional, one dimensional, and zero-dimensional properties, enabling control over the energy level configuration and subsequent improvements in photocatalytic and electrocatalytic efficiency.
{"title":"Novel ternary Z scheme carbon quantum dots (CQDs) decorated WS2/PANI ((CQDs@WS2/PANI):0D:2D:1D) nanocomposite for the photocatalytic degradation and electrochemical detection of pharmaceutical drugs","authors":"Tarab Fatima, Samina Husain, Manika Khanuja","doi":"10.1016/j.nanoms.2024.04.005","DOIUrl":"10.1016/j.nanoms.2024.04.005","url":null,"abstract":"<div><div>The endocrine-disrupting chemicals (EDCs) and antibiotics are causing negative effects on human beings and animals by disrupting the endocrine system and spreading antimicrobial resistance. The current need is to eradicate pharmaceutical waste from water bodies using advanced catalytic systems with high efficiency. Novel ternary carbon quantum dots (CQDs) decorated Z-Scheme WS<sub>2</sub>-PANI nanocomposite was prepared by a green synthesis assisted in-situ polymerization for the photodegradation and detection of Estradiol (EST) and Nitrofurantoin (NFT). HRTEM micrographs revealed the formation of CQDs with a mean size of 4 nm anchored on the surface of WS<sub>2</sub>/PANI (width:PANI ∼ 20–30 nm). The ternary nanocomposite showed excellent photocatalytic activity, degraded NFT (95.7 % in 60 min), and EST (96.6 % in 60 min). The rate kinetics study confirms the reaction followed pseudo first-order model. This heterostructure exhibited enhanced performances by modulating the energy level configuration, enhancing the absorption of visible light (2.4 eV), and significantly improving the charge separation, three times higher than pristine WS<sub>2</sub>. These are highly favorable for increasing the generation of photoinduced charges and enhancing the overall performance of the catalyst. Further, the electrochemical sensor was prepared using CQDs@WS<sub>2</sub>/PANI nanocomposite on a paper-based electrode. The CQDs@WS<sub>2</sub>/PANI exhibit a linear response of 0.1–100 nM, with a limit of detection of 13 nM. This synergistic interfacial interaction resulted in the significantly improved electrochemical performance of the modified electrode. The proposed Z-scheme was justified by electron paramagnetic resonance (EPR) and scavenger experiment. An intermediate degradation pathway was also proposed. The synthesized materials were characterized using FESEM, HRTEM, XRD, FTIR, XPS, UV-visible spectroscopy, PL, and TRPL. Therefore, this study provides a direct approach to fabricate a heterojunction that combines two-dimensional, one dimensional, and zero-dimensional properties, enabling control over the energy level configuration and subsequent improvements in photocatalytic and electrocatalytic efficiency.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"7 2","pages":"Pages 259-275"},"PeriodicalIF":9.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140771996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-01DOI: 10.1016/j.nanoms.2024.04.004
Chunwei Lei , Jian Li , Yuhan Wu , Yu Xie , Yun Ling , Juhua Luo
Currently, carbon materials derived from biomass are widely sought after as electromagnetic absorbing(EMWA) materials owing to the unique structure, as well as the wide range of natural acquisition pathways, economic viability, and simple processing. However, due to the high dielectric properties, mismatched impedance and single attenuation mechanism, they cannot achieve efficient EMWA performance. Herein, the biomass carbon/Co/porous carbon magnetic composites with a layered gradient structure were fabricated by in-situ deposition of ZIF-67 on the lotus leaf base and then pyrolysis at high temperature. By adjusting the pyrolysis temperature, the sample obtained at 650 °C achieved a minimum reflection value (RLmin) of −34.2 dB at a matching thickness of 2.6 mm, and a maximum effective absorption bandwidth (EAB) of 7.12 GHz. The results indicate that this magnetic composite with a multi-sized layered gradient porous structure has a good electron transport network, a large number of heterogeneous interfaces, and dipole polarization centers, which are conducive to multiple reflection and scattering of microwaves, conduction loss, interface loss, magnetic loss, and impedance matching of materials. Therefore, this work provided a reference for optimizing the EMWA performance of carbon materials and designing a layered gradient porous magnetic composite with multi-sized structure.
{"title":"Construction of gradient hierarchical and hetero-interfaces structure for ultra-broad microwave absorption","authors":"Chunwei Lei , Jian Li , Yuhan Wu , Yu Xie , Yun Ling , Juhua Luo","doi":"10.1016/j.nanoms.2024.04.004","DOIUrl":"10.1016/j.nanoms.2024.04.004","url":null,"abstract":"<div><div>Currently, carbon materials derived from biomass are widely sought after as electromagnetic absorbing(EMWA) materials owing to the unique structure, as well as the wide range of natural acquisition pathways, economic viability, and simple processing. However, due to the high dielectric properties, mismatched impedance and single attenuation mechanism, they cannot achieve efficient EMWA performance. Herein, the biomass carbon/Co/porous carbon magnetic composites with a layered gradient structure were fabricated by in-situ deposition of ZIF-67 on the lotus leaf base and then pyrolysis at high temperature. By adjusting the pyrolysis temperature, the sample obtained at 650 °C achieved a minimum reflection value (<em>RL</em><sub>min</sub>) of −34.2 dB at a matching thickness of 2.6 mm, and a maximum effective absorption bandwidth (EAB) of 7.12 GHz. The results indicate that this magnetic composite with a multi-sized layered gradient porous structure has a good electron transport network, a large number of heterogeneous interfaces, and dipole polarization centers, which are conducive to multiple reflection and scattering of microwaves, conduction loss, interface loss, magnetic loss, and impedance matching of materials. Therefore, this work provided a reference for optimizing the EMWA performance of carbon materials and designing a layered gradient porous magnetic composite with multi-sized structure.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"7 2","pages":"Pages 249-258"},"PeriodicalIF":9.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Two-dimensional (2D) materials have attracted considerable research interest due to their precisely defined properties and versatile applications. In this realm, borophene - a single atomic sheet of boron atoms arranged in a honeycomb lattice - has emerged as a promising candidate. While borophenes were theoretically predicted to have unique structural, optical, and electronic properties, the experimental synthesis of crystalline borophene sheets was first demonstrated on metal substrates in 2015, marking a crucial milestone. Since then, research efforts have focused on controlling the synthesis of semiconducting borophene polymorphs and exploring their novel physical characteristics. This review aims to explore the potential of 2D materials, specifically borophene, in various technological fields such as batteries, supercapacitors, fuel cells, and more. The analysis emphasises meticulous scrutiny of synthesis techniques due to their fundamental importance in realising borophene's properties. Specifically, the high carrier mobilities, tuneable bandgaps, and exceptional thermal conductivity of borophene are highlighted. By providing a comprehensive outlook on the significance of borophene in advancing materials science and technologies, this review contributes to shaping the landscape of 2D material research.
{"title":"Borophene: A 2D wonder shaping the future of nanotechnology and materials science","authors":"Raghvendra Kumar Mishra , Jayati Sarkar , Kartikey Verma , Iva Chianella , Saurav Goel , Hamed Yazdani Nezhad","doi":"10.1016/j.nanoms.2024.03.007","DOIUrl":"10.1016/j.nanoms.2024.03.007","url":null,"abstract":"<div><div>Two-dimensional (2D) materials have attracted considerable research interest due to their precisely defined properties and versatile applications. In this realm, borophene - a single atomic sheet of boron atoms arranged in a honeycomb lattice - has emerged as a promising candidate. While borophenes were theoretically predicted to have unique structural, optical, and electronic properties, the experimental synthesis of crystalline borophene sheets was first demonstrated on metal substrates in 2015, marking a crucial milestone. Since then, research efforts have focused on controlling the synthesis of semiconducting borophene polymorphs and exploring their novel physical characteristics. This review aims to explore the potential of 2D materials, specifically borophene, in various technological fields such as batteries, supercapacitors, fuel cells, and more. The analysis emphasises meticulous scrutiny of synthesis techniques due to their fundamental importance in realising borophene's properties. Specifically, the high carrier mobilities, tuneable bandgaps, and exceptional thermal conductivity of borophene are highlighted. By providing a comprehensive outlook on the significance of borophene in advancing materials science and technologies, this review contributes to shaping the landscape of 2D material research.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"7 2","pages":"Pages 198-230"},"PeriodicalIF":9.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141047533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-04-01DOI: 10.1016/j.nanoms.2024.03.003
Liang Chen , Lanyun Yang , Liying Hu , Minghao Jin , Chenxi Xu , Binhong He , Wei Wang , Ying Liu , Gangyong Li , Zhaohui Hou
Owing to abundant resource and affordable price, metal–free carbon has been extensively studied in the field of oxygen reduction reaction, while the related studies on oxygen evolution reaction (OER) are quite few. In this work, a facile and scalable knife coating coupled with annealing strategy is proposed to produce self–standing oxygen–doped graphene membranes (marked as O–GM–T, T represents the annealing temperature). Through systematic characterization and analysis, it is discovered the annealing treatment not only decreases the amount of oxygenic groups, but allows for controlled regulation of the oxygen configurations, leaving only C–OH/C–O–C and CO. Meanwhile, theoretical calculations indicate that the OER activity trend of different oxygen configurations is as follows: –COOH > CO ≈ C–OH > C–O–C. Despite the removal of highly active –COOH group through annealing treatment, the resulting O–GM–800 sample maintains good mechanical property and achieves a favorable balance on conductivity, hydrophilicity and catalytic sites. Consequently, it displays significantly improved OER performance compared to the counterparts, making it highly promising for applications in overall water splitting devices. Apparently, our work provides guidance for the rational design and controllable fabrication of self–standing carbon–based catalysts for energy–related reactions.
{"title":"Facile and adjustable production of self–standing oxygen–doped graphene membranes for optimized oxygen evolution electrocatalysis","authors":"Liang Chen , Lanyun Yang , Liying Hu , Minghao Jin , Chenxi Xu , Binhong He , Wei Wang , Ying Liu , Gangyong Li , Zhaohui Hou","doi":"10.1016/j.nanoms.2024.03.003","DOIUrl":"10.1016/j.nanoms.2024.03.003","url":null,"abstract":"<div><div>Owing to abundant resource and affordable price, metal–free carbon has been extensively studied in the field of oxygen reduction reaction, while the related studies on oxygen evolution reaction (OER) are quite few. In this work, a facile and scalable knife coating coupled with annealing strategy is proposed to produce self–standing oxygen–doped graphene membranes (marked as O–GM–T, T represents the annealing temperature). Through systematic characterization and analysis, it is discovered the annealing treatment not only decreases the amount of oxygenic groups, but allows for controlled regulation of the oxygen configurations, leaving only C–OH/C–O–C and C<img>O. Meanwhile, theoretical calculations indicate that the OER activity trend of different oxygen configurations is as follows: –COOH > C<img>O ≈ C–OH > C–O–C. Despite the removal of highly active –COOH group through annealing treatment, the resulting O–GM–800 sample maintains good mechanical property and achieves a favorable balance on conductivity, hydrophilicity and catalytic sites. Consequently, it displays significantly improved OER performance compared to the counterparts, making it highly promising for applications in overall water splitting devices. Apparently, our work provides guidance for the rational design and controllable fabrication of self–standing carbon–based catalysts for energy–related reactions.</div></div>","PeriodicalId":33573,"journal":{"name":"Nano Materials Science","volume":"7 2","pages":"Pages 231-239"},"PeriodicalIF":9.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140773143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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