APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Hezheng Sun,Yi Zhao,Changhui Xin,Hao Yang,Xin Yu,Yajie Tian
As a well-known endocrine disruptor, bisphenol A can be detected in natural waters, and the exploration of high-performance photocatalytic systems for bisphenol A removal is of significance for the sustainable development. In this work, self-doped Nb 3 O 7 (OH) architecture with abundant oxygen vacancies were synthesized using a controllable solvothermal method, while the Nb 3 O 7 (OH)-supported AgIO 3 /AgCl heterojunctions were fabricated by leveraging the residual Cl − ions over the surface Nb 3 O 7 (OH) architecture for the degradation of organic pollutants. Additionally, the proportion of AgIO 3 to AgCl over the Nb 3 O 7 (OH) architecture was adjusted by controlling the dosage of NaIO 3 , leading to the successful fabrication of the AgIO 3 /AgCl/Nb 3 O 7 (OH) composites. The AgIO 3 /AgCl/Nb 3 O 7 (OH)-25 % composite demonstrated the highest photocatalytic performance for bisphenol A degradation, achieving a rate constant of 0.02445 min −1 , which was 5.57 times that that of AgCl, 5.61 times that of Nb 3 O 7 (OH) and 163 times that of AgIO 3 , respectively. The AgIO 3 /AgCl/Nb 3 O 7 (OH)-25 % composite achieved a total organic carbon removal efficiency of 68.16 % for bisphenol A mineralization within 100 min under visible-light irradiation, which underscored the potential of AgIO 3 /AgCl/Nb 3 O 7 (OH) composites as effective photocatalysts for the efficient mineralization of organic pollutants. Finally, a reasonable charge transfer mechanism of the AgIO 3 /AgCl/Nb 3 O 7 (OH) composites for bisphenol A degradation were proposed.
✓ 已验证
产品关联
DOI
高影响因子
Desalination and Water Treatment
·
2024
·
IF 1
Hao Li,Dongbing Cheng,Lingyao Dong,Feng Qian
Membrane fouling, especially bio-fouling, limits the further development of thin film composite (TFC) aromatic polyamide reverse osmosis (RO) membranes. In the current study, a simple method (the alternative soaking surface mineralization technique) was used to deposit AgCl particles onto surfaces of commercial RO membranes to enhance its antibacterial performance and permselectivity simultaneously. Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) confirmed the deposition of AgCl particles on the surface of the modified membranes. Characterization of membrane surface showed the modification enhanced the hydrophilic of membrane surfaces, made the membrane surfaces more negatively charged and did not influence the membrane surface roughness. Under RO operation, the modification improved the membrane flux and salt rejection. Membrane fouling test showed the modified membranes had slower water flux decline rate and higher water flux recovery rate. Membrane antibacterial test showed the death rates of Escherichia coli after contacting with modified membranes were much larger than that after contacting with the unmodified membrane.
研究领域:
膜科学与技术
·
环境工程
·
材料科学
·
水处理技术
·
纳米材料应用
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2021
·
IF 6.707
Linlin Xu,Qingqiang Cui,Yue Tian,Anxin Jiao,Mengya Zhang,Shuang Li,Hengshuai Li,Ming Chen
Silver/silver halides (Ag/AgX, X = Cl, Br, I)-based photocatalysts with tunable energetic synergies have attracted intensive attention in solar-energy-conversion. Herein, we introduce an appealing ternary Au/Ag/AgCl nanochain with short curvilinear necklace-like nanoarchitectures via an ingenious one-step strategy by pulsed laser irradiation of metallic ions in solution. Compared with binary Ag/AgCl nanoparticles (NPs), the ternary nanochains with stronger intermetallic synergy exhibit improved absorbance capacity and enhanced localized surface plasmon resonance (LSPR) under broad visible-light irradiation. Then, the Au/Ag/AgCl nanochains can obviously accelerate photoinduced electron transfer and boost the separation of electron-hole on their surfaces, providing an excellent photocatalytic activity towards degradation of methylene blue (MB). Meanwhile, the enhanced synergistic coupling effect of the ternary nanocomposites also enables them to inhibit the photocorrosion under visible-light irradiation. Interestingly, compared to monodisperse NPs, the Au/Ag/AgCl nanochains with numerous interconnected NPs can be self-deposited on the bottom of solution after each photocatalytic reaction. Without the aid of extra and complicated nanocatalyst-separation procedures, then the clear-water will be easily obtained. Therefore, the unique photocatalyst possesses pronounced long-term stability, since ~ 97.6% photodegradation rate can be maintained after 14 recycling tests within two weeks. Undoubtedly, these findings will bring new opportunities to prepare high-performance photocatalysts for diverse practical applications.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
NANO
·
2018
·
IF 1.1
Xu Yan,Ziyang Wu,Yong Zhao,Biao Liu,Yubin Tang
Silver nanoparticles (NPs) and related semiconductors are a family of very important and widely applied photocatalysts. However, the preparation of high stability and activity of this photocatalyst is still a challenge. In this work, we report a stable Ag/AgCl/AgBi(MoO 4 ) 2 heterojunction photocatalyst fabricated via a simple in situ anion-exchange reaction followed by the photoreduction treatment. In the treatment of tetracycline (TC) wastewater under visible light, the AC-0.4 sample (prepared with 0.4 mmol KCl) exhibits the significantly improved activity (degradation ratio, DR of 71.3%) compared with the pristine AgBi(MoO 4 ) 2 (30% DR) and Ag/AgCl sample (synthesized by the photoreduction of AgCl) (37% DR) under identical experimental conditions. This activity promotion is from the fast interfacial electron transfer between the heterojunction phases of AgCl/AgBi(MoO 4 ) 2 and the SPR effect of Ag NPs. After five successive recycles, the AC-0.4 sample still maintains good stability and activity for TC degradation, which shows a great potential to be used in practical application. Through the ESR and controlled scavenged experiments, we found the • OH and • O 2 − are the major reactive intermediate species in the TC photodegradation reaction. Our work provides a new insight into the synthesis of stable and high efficient Ag-based heterojunction photocatalysts for the application of wastewater treatment.
研究领域:
材料科学
·
环境科学
·
光催化技术
✓ 已验证
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 42
·35216-35227
·
IF 3.289
Minmin Liu,Li-an Hou,Qi Li,Xiaojun Hu,Shuili Yu
Magnetic catalysts (Ag/AgCl/(x)FeX) were fabricated via a facile hydrothermal method followed by a precipitation–photo-reduction method. The Ag/AgCl/(x)FeX catalysts were applied to activate persulfate (PS) for tetracycline (TC) degradation. The degradation efficiencies of the Ag/AgCl/(x)FeX–PS system for TC removal were high due to the enhanced adsorptive capacity of (x)FeX, extended absorbance in the visible-light region and improved space separation of photo-induced charge carriers. The Ag/AgCl/(0.05)FeX catalyst exhibited better performance for TC removal compared with the other samples and complete degradation of TC could be achieved in 120 min by using 1 g L−1 Ag/AgCl/(0.05)FeX and 5.0 mM PS at pH 3.5. The characterization of the catalysts and Electron Paramagnetic Resonance (EPR) studies indicated that TC was mainly degraded by surface-adsorbed radicals resulting from the reaction between PS and Fe(II) on the catalysts under visible light. The Ag/AgCl/(x)FeX–PS system provides new insights for contaminant removal from water.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2024
·
IF 8.4
Lei Zhang,Wanbang Zhu,Xin Wen,Huiying Ding,Hongsen Hui,Yujun Zhang,Hongzi Tan,Qian Zhuang,Jiakai Chen,Xianhui Li,Hongchang Pei
Nanofiltration (NF) membrane with good permselectivity is highly desired. However, it often suffers from permeability-selectivity trade-off in practical applications. To overcome this challenge, a novel in-situ template strategy was proposed for the preparation of high-performance thin film nanocomposite (TFN) NF membrane by adding AgNO 3 in the aqueous solution. The AgCl nanoparticles can be in-situ incorporated into the polyamide film due to the by-product of HCl from the interfacial polymerization and AgNO 3 at the oil/water interface. Besides, water transportation channels can be further constructed in the polyamide film via removal the AgCl template using ammonia as post-treatment solution. The optimized NF-3 membrane with low water transportation resistance shows a two-fold permeance as well as equal salt rejection compared with the controlled NF-1 membrane, indicating that the “trade-off” effect is effectively inhibited. Consequently, the in-situ template strategy provides a new sight for the preparation of high-performance NF membrane.
研究领域:
材料科学
·
环境工程
✓ 已验证
产品关联
DOI
高影响因子
TALANTA
·
2025
·
IF 6.1
Rongjing Hu,Shilan Fu,Yongcong Zhou,Zhenyu Lin,Fengfu Fu,Yongqiang Dong
The current surface-enhanced Raman scattering (SERS) substrates typically feature a single energy level, posing challenges in coordinating electromagnetic enhancement (EM) and chemical enhancement (CM), thereby limiting the sensitive detection of numerous crucial target molecules. In this study, novel aggregated nanorings (a-NRs) hybridizing Ag, Au and AgCl are constructed as SERS substrates. On one hand, the obtained a-NRs exhibit robust localized surface plasmon resonance absorption, whose wavelength can be tuned to match three commonly used laser wavelengths (532, 633 and 785 nm) to gain strong EM effect. On the other hand, these materials possess the Fermi levels of Au nanoparticles and Au/Ag alloy, in addition to the valence band and conduction band of AgCl. The abundant energy levels of the obtained a-NRs facilitate increased charge transfer opportunities for molecules, leading to a strong CM effect. Therefore, the obtained a-NRs show ultra-high SERS sensitivity towards numerous molecules. Moreover, the unique chemical composition makes the obtained a-NRs have good long-term stability in terms of SERS activity. Besides providing high-performance SERS substrates, the valuable experience for coordinating EM and CM to construct highly active SERS substrate demonstrated in this work are expected to significantly advance the application of SERS.
研究领域:
材料科学
·
光谱学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBOHYDRATE POLYMERS
·
2020
·
IF 7.182
Wanli Lu,Chao Duan,Chaoran Liu,Yanling Zhang,Xin Meng,Lei Dai,Wenliang Wang,Hailong Yu,Yonghao Ni
Membrane technology is one of the most promising technologies for wastewater remedy. However, it remains challenging to prepare high-performance membrane matrix for complex pollutants, e.g. containing both oil and organic dye. In this work, we facilely fabricate a cellulose-fiber-supported MOF photocatalytic membrane, namely Ag@AgCl@MIL-100(Fe)/CCF, which was prepared via carboxymethylation of cotton fabric (CCF) as scaffold and in-situ synthesis of MOF derivative as photocatalyst. The carboxymethylation significantly improves the hydrophilicity of cotton fabric and the deposition amount of MIL-100(Fe). The high hydrophilicity of modified CCF and porous MIL-100(Fe) further enable the membrane with an efficient adsorption capacity of dyes and underwater oleophobicity against oils. The photocatalysts Ag@AgCl nanoparticles anchored onto MIL-100(Fe) promote the photocatalytic activity. As a result, the membrane shows simultaneous high removal efficiency towards dyes (97.3 %) and oils (99.64 %). Additionally, thanks to the good photocatalytic activity against organic pollutants, the membrane exhibits excellent self-cleaning and a long-term reuse capacity.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
Journal of Materials Chemistry A
·
2025
·
IF 9.5
Guangxing Hu,Shuang Cui,Yan Shi,Hongda Wang,Zhuang Li
Flexible electronic devices with self-healing have garnered a wide attention, and the development of liquid metal-based electrode may extend their applications. The application of self-healing electronics is challenging and has not fully proven in a complex physiological environment. Herein, a one-step method prepared Ga-Sb and Ga-AgCl inks were employed to fabricate pH and reference electrodes for self-healing sweat pH devices. The Ga-Sb electrode exhibited a high pH sensitivity (62 mV/pH), small hysteresis (12 mV), excellent stability (1.5 mV/h) and selectivity. The Ga-AgCl electrode was insensitive to pH but demonstrated favorable selectivity and stability (2 mV/h), especially in solutions with halide ion. The wearable sweat pH sensor, incorporating both the two electrodes, offered real-time pH monitoring with excellent response performance. Additionally, these electrodes could be effectively repaired by simple heating treatment and maintained stable performance. This study provides a novel approach for the development of repairable and durable wearable sweat detecting devices.
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2019
·Vol. 7
·期 18
·5451-5460
·
IF 6.641
Wubin Wu,Jingchao Wang,Tianyong Zhang,Shuang Jiang,Xiaoyuan Ma,Guanghui Zhang,Xia Zhang,Xingwei Chen,Bin Li
Different fusiform-shaped MIL-88A materials were successfully prepared by adjusting the mole ratio of the central metal ion and the organic ligand and using different polar solvents. With differently shaped MIL-88A supports, several Ag/AgCl@MIL-88A (ACML) were prepared successfully using the in situ growth method. These ACML composites showed a good photocatalytic activity under the simulated sunlight and visible light. The employment of Cl− ions, anchored on the surface of MIL-88A, could improve the dispersion and stability of the loaded Ag/AgCl nanoparticles. The s-ACML composite showed excellent photocatalytic stability during the cycle tests. The in situ growth strategy provided a facile method to design and synthesize MOF composite photocatalysts for wastewater treatment. In addition, based on the related optical and electrical characterization analysis, a possible mechanism of the ACML composite photocatalytic activity was proposed.
研究领域:
材料科学
·
光催化
·
环境工程
·
纳米复合材料
·
金属有机框架材料（MOFs）
✓ 已验证
DOI
高影响因子
Applied Materials Today
·
2021
·
IF 10.041
Jiangtao Xu,Wei Gao,Shouxiang Jiang
The construction of plasmonic nanocavities introduces strong optical resonances by confining electromagnetic fields on the nanostructured interfaces, implying their promising applications in sensing, advanced spectroscopies, and so on. However, the exploration of plasmonic nanocavities based on integrating metallic nanoparticles with semiconductors, especially semiconductor materials decorated metallic nanoparticles, remains challenges. Here, nanostructured AgCl@Ag nanowires with inhomogeneous nanocavities were prepared and investigated. Interestingly, there exists strong coupling effect and internal electric field on the semiconductor-metal interfaces which can enhance the intensity of distributed electric field. Moreover, the prepared substrates show great SERS sensing performance with excellent reusability. This study offers a novel strategy and depth understand for the design and applications of plasmonic nanocavities.
研究领域:
材料科学
·
光学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
Energy Technology
·
2019
·Vol. 7
·期 9
·1900454
·
IF 3.163
Xue Li,Yujie Zhang,Jingwei Shen,Shun-an Cao,Ting Li,Fei Xu
Rechargeable Mg batteries are attractive candidates for large-scale energy storage batteries with high safety due to the low-cost and non-dendritic metallic Mg anode. However, exploring high-performance cathode materials is blocking their development. Herein, a high-rate rechargeable Mg battery is established with a AgCl cathode, delivering a high reversible capacity of 70.3 mAh g −1 at 100 mA g −1 , an outstanding rate capability of 32.6 mAh g −1 at 1000 mA g −1 , and a superior long-term cyclability over 500 cycles. Further investigation of the mechanism demonstrates that a conversion reaction takes place between AgCl and metallic Ag 0 for the cathode. The solid-state Mg 2+ diffusion coefficient is as high as 8.1 × 10 −11 cm 2 s −1 , which would be the reason for the high rate capability. The current study reveals significant insights to select promising Mg-storage conversion cathodes by a combination of soft anions and soft transition-metal cations.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）