JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2025
·
IF 4.7
Mengyao Hua,Siyi Wang,Meng Cheng,Guangming Liang,Lei Xu,Yafen Zhou
Photocatalysts TiO 2 @UiO-66-(OH) 2 was successfully synthesized via an impregnation method for removal of formaldehyde under high pressure mercury lamp irradiation, and the photocatalysts were characterized by using a variety of analytical techniques. The characterized results indicated that TiO 2 was attached to the surface of UiO-66-(OH) 2 , and there was a strong electronic interaction between the elements of TiO 2 and UiO-66-(OH) 2 in the composite. The synergistic combination of high adsorption capacity of UiO-66-(OH) 2 , high dispersion of TiO 2 and efficient interfacial charge transfer between UiO-66-(OH) 2 and TiO 2 have a significant impact on the enhanced photocatalytic performance for formaldehyde removal. And the hydroxyl radicals (⋅OH) and superoxide radicals (⋅O 2 − ) also play a major role in removal of formaldehyde. The formaldehyde removal rate of 20TiO 2 @UO (1 g 0.15 m 3 ) is 83.01 % within 5.5 h, if the removal time is extended to 24 h, the formaldehyde removal rate can reach 91.49 %, and the continuous photocatalytic reaction showed that the composite is a highly stable catalyst. This could provide a useful method for highly efficient formaldehyde in indoor air purification.
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
ELECTROCHIMICA ACTA
·
2017
·
IF 4.798
Yaohua Yang,Kai Yan,Jingdong Zhang
A Ni(OH) 2 /TiO 2 photoanode possessing high photoelectrocatalytic activity toward glucose oxidation driven by visible light was fabricated. The results indicated that deposition of Ni(OH) 2 on TiO 2 film electrode could remarkably promote the catalytic oxidation of glucose under visible light illumination. By applying a low voltage, the Ni(OH) 2 /TiO 2 electrode showed a linear photoelectrochemical response to glucose in the concentration range from 0.5 μM to 20 μM. Furthermore, the high photoelectrocatalytic activity of Ni(OH) 2 /TiO 2 electrode toward glucose oxidation was utilized to construct a glucose-air photofuel cell, which generated electrical signal responding to glucose concentration from 5 μM to 100 μM, without using external electrical power supply. Thus, dual non-enzymatic glucose sensors based on photocatalytic oxidation of glucose on the Ni(OH) 2 /TiO 2 electrode under visible light illumination were demonstrated.
研究领域:
生物医学工程
·
材料科学
·
分析化学
✓ 已验证
DOI
高影响因子
Polymers
·
2024
·Vol. 16
·期 9
·1239
·
IF 4.7
Cong Yin,Yang Luo,Ting Pan,Liting Ding,Chenghuang Wang,Guoyuan Yuan,Chongxiong Duan
Recovering cobalt from waste batteries is crucial for resource recycling and environmental protection. Here, MOF-OH, a Zr-based MOF, was synthesized and merged into a polyacrylonitrile (PAN) matrix to create MOF-OH-PAN nanofibers (NFs). These NFs showed a high cobalt ion adsorption capacity of 33.1 mg/g, retaining over 90% of the capacity after six cycles. The adsorption mechanism involves Co(II) surface diffusion followed by strong bonding with functional groups. This technology enables efficient cobalt recovery from waste batteries, supporting reuse and reducing resource depletion and environmental pollution. The study provides insights into waste battery resource management, highlighting environmental and economic benefits and contributing to green resource recovery and circular economy initiatives.
研究领域:
材料科学
·
环境科学
·
资源回收
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED SURFACE SCIENCE
·
2010
·Vol. 257
·期 9
·3920-3923
·
IF 1.616
Hongxu Guo,Jianhua Chen,Wen Weng,Shunxing Li
A visible light-driven photocatalyst, C-doped Zn 3 (OH) 2 V 2 O 7 , prepared by a hydrothermal method was studied. The as-prepared catalyst was characterized by SEM, XRD , DRS, and XPS , and exhibited efficient photocatalytic activity in the degradation of methylene blue (MB) under visible-light irradiation. Besides decoloring, the decomposition of MB was also observed, further demonstrating the performance of the photocatalyst. The carbon existing on the surface of Zn 3 (OH) 2 V 2 O 7 nanorods was free and in carbide form. Dye degradation followed first-order kinetics, and was explained on the basis of the Langmuir–Hinshelwood mechanism.
研究领域:
材料化学
·
光催化
·
纳米材料
·
环境化学
·
无机合成
✓ 已验证
DOI
高影响因子
CATALYSIS LETTERS
·
2025
·Vol. 155
·期 5
·1-19
·
IF 2.4
Hu Xinyin,Xiao Guoqing,Chen Chunlin,Chen Chunyan,Zeng Xiang,Li Ruili,Yang Zhengwei
Recently, several emerging pollutants have caused increasing damage to aquatic ecosystems. Reducing antibiotic concentrations in water by visible light is one of the most promising strategies for sustainable development. Here, a Bi 2 S 3 /CeO 2 /Ni(OH) 2 Z-scheme heterojunction photocatalyst was prepared by the hydrothermal method, which could effectively utilize free radicals to degrade tetracycline. Ni(OH) 2 was used for co-catalysing in photodegradation experiments to improve electron transfer and enhance photocatalytic performance. The degradation rate of the Z-scheme heterojunction photocatalyst for 20 mg/L TC was 91.35% after reacting 60 min under visible light irradiation. Besides, it also investigated such operational parameters influencing the photocatalytic reaction as catalyst dosage, initial concentration of tetracycline hydrochloride (TC), and solution pH. Studies using free radical scavenging experiments and electron spin resonance (ESR) measurements demonstrated that hydroxyl radicals (·OH) and superoxide radicals (·O 2 − ) both contributed to the photodegradation of TC. Finally, with high-performance liquid chromatography-mass spectrometry (LC-MS), potential degradation pathways of the intermediate products were logically inferred as well as the photocatalytic mechanism. The experimental results surface that the prepared Z-scheme heterojunction photocatalyst Bi 2 S 3 /CeO 2 /Ni(OH) 2 exhibits superior photocatalytic performance, offering a novel approach to addressing TC contamination in environmental settings. Graphical
研究领域:
环境科学
·
材料科学
·
光催化技术
✓ 已验证
产品关联
DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2022
·
IF 10.753
Yingdong Chen,Rongze Sun,Wentao Yan,Mengyao Wu,Yong Zhou,CongJie Gao
In many important industries, such as the textile printing industry, a large amount of dye/salt wastewater is often discharged, which can destroy the ecological environment of the water body. Membrane technology has a great potential in the treatment of environmental problems caused by dye/salt wastewater. Polyvinyl alcohol (PVA) nanofiltration (NF) membrane has a bright future in dye/salt wastewater treatment , however, works on this are rare. Herein, antibacterial PVA NF membrane incorporated with Cu(OH) 2 nanowires for the dye/salt wastewater treatment is reported. The membrane was prepared via coating the solutions containing PVA, glutaraldehyde and Cu(OH) 2 nanowires on the polyethersulfone ultrafiltration membrane. Cu(OH) 2 nanowires has a diameter of 60 nm and was successfully introduced into the membrane. The introduction of nanowires improved the membrane hydrophilicity and roughness, which is conducive to the improvement of membrane flux. Membrane separation performance for one component solution and dye/salt solution were investigated. The introduction of Cu(OH) 2 increases the flux of the membrane obviously (the highest increase is 178.78% (from 21.49 to 38.42 L·m −2 ·h −1 ·bar −1 , for NaCl solution as the feed). Besides, the membrane doped with nanowires also possessed a high dye/salt selectivity . For one component solution, the dye removal rate was over 97.00% while the salt rejection was low (the lowest was 13.18% (NaCl)). For the dye/salt solution, the dye (Congo Red) rejection kept at a high level (98.91%) and the salt (NaCl) rejection was still low (13.71%), while the flux was also high (37.56 L·m −2 ·h −1 ·bar −1 ). The performance is superior to that of many membranes reported in previous works. Moreover, the Cu(OH) 2 nanowires endowed the membrane with an improved and high antibacterial property. The sterilization rate of Escherichia coli and Staphylococcus aureus reached more than 99.99%.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF RARE EARTHS
·
2017
·
IF 2.429
Song LI,Song YE,Xiao CHEN,Tianhua LIU,Zhuang GUO,Deping WANG
Yb 3+ and Er 3+ ions co-doped NaYF 4 nanocrystals were synthesized with different amounts of NaOH via oleic acid (OA)-assisted hydrothermal process. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), and photoluminescence spectra were used to characterize the products. The result indicated that the introduction of NaOH into the initial reaction solution effectively promoted the cubic (α-) to hexagonal (β-) phase transition of NaYF 4 :Yb 3+ ,Er 3+ nanocrystals, while excessive amount of NaOH favored the formation of α-NaYF 4 :Yb 3+ ,Er 3+ nanocrystals. Besides, with the increase of NaOH amount, the morphologies of β-NaYF 4 :Yb 3+ ,Er 3+ nanocrystals varied from irregular nanobranch to uniform nanorod. Further investigation revealed that the addition of NaOH could facilitate the deprotonation of OA, leading to the formation of oleate (OA − ), and meanwhile increased the concentration of OH − ions, inducing consequently the phase transition and morphology evolution of NaYF 4 :Yb 3+ ,Er 3+ nanocrystals. Moreover, the upconversion luminescence properties of NaYF 4 :Yb 3+ ,Er 3+ nanocrystals were systematically investigated. It was found that the upconversion emissions not only depended on the phase and morphology but also were influenced by the surface groups.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yongfang Jia,Juan Gao,Feng Yang,Yangmin Diao,Qijun Liu,Yong Zhang,Hongliang Sun,Min Pan,Mei Huang,Min Xu,Xuru Duan,Yong Zhao
Despite the excellent performance of Nb3O7(OH) in dye-sensitized solar cells and catalysis, its charge separation, transport, and structural properties remain poorly understood. Herein, the Nb3O7(OH) nanorods were prepared, and their structural characteristics, optoelectronic properties, and carrier mobility were also analyzed and investigated through a series of complex characterizations. Theoretical prediction suggested that the exciton binding energy of Nb3O7(OH) could be as high as 100.49 meV. The temperature-dependent photoluminescence (PL) of Nb3O7(OH) nanorods revealed two activation energies, and a higher proportion of long-lived components observed in the photoluminescence decay indicated effective electron trapping. That is, two energy states were present, hindering photogenerated charge recombination and promoting photocatalytic action. Current–voltage characteristics of the Nb3O7(OH) nanorod film were analyzed, revealing an ultrahigh carrier mobility of ∼310 cm2/V·s, ensuring fast and efficient electron transfer. Furthermore, Nb3O7(OH) nanorods were employed to reduce CO2, resulting in the effective production of CO and CH4. Overall, considering the presence of hydroxyl pairs on the surface of Nb3O7(OH), which facilitate the formation of the frustrated Lewis acid–base pairs and the activation of CO2, together with its effective electron trapping and charge transport, give Nb3O7(OH) nanorods a promising potential for CO2 reduction.
研究领域:
材料科学
·
催化化学
·
光电化学
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2024
·
IF 8
Zhen-Dong Lian,Bo Wang,Zhi-Sheng Wu,Hao Lin,Ting Ding,Jin-Xiao Wang,Liang-Xing Zhang,Jin-Cheng Xu,Peng Xiao,Hua Xu,Shuang-Peng Wang,Kar Wei Ng
CsPbBr 3 nanoplates (NPs) have shown great potential in diverse optoelectronic applications. Despite the wonderful luminescence properties, the inherent instability of these NPs hinders their use in practical situations. Herein, a facile water-assisted strategy is reported to synthesize highly stable blue emission CsPbBr 3 NPs encapsulated in PbBr(OH). The introduction of water directly into the reaction mixture is pivotal, as it triggers the transformation of bulk CsPbBr 3 nanocubes into 2-D CsPbBr 3 NPs within the PbBr(OH) matrix, resulting in the formation of CsPbBr 3 @PbBr(OH) microbricks. Remarkably, the water content in the reaction mixture allows the control of the number of perovskite layers in the NPs, thus enabling the emission color to be tuned from deep blue to green. The unconventional approach presented herein not only offers a cost-effective pathway to synthesize blue-emitting perovskites which are highly stable in a wide variety of polar and non-polar solvents, but also holds immense potential for propelling the advancement of high-performance LEDs and other optoelectronic devices. The findings underscore the significance of water in dictating the growth dynamics and emission characteristics of perovskite NPs, paving the way for their practical application.
研究领域:
材料科学
·
纳米技术
·
光电子学
✓ 已验证
产品关联
DOI
高影响因子
Nanoscale
·
2012
·Vol. 4
·期 7
·2423-2430
·
IF 5.914
Qing Cao,Feng Huang,Zanyong Zhuang,Zhang Lin
This work aims at the investigation of nano-Mg(OH)2 as a promising adsorbent for uranium recovery from water. Systematic analysis including the uranium adsorption isotherm, the kinetics and the thermodynamics of adsorption of low concentrations of uranyl tricarbonate (0.1–20 mg L−1) by nano-Mg(OH)2 was carried out. The results showed a spontaneous and exothermic uranium adsorption process by Mg(OH)2, which could be well described with pseudo second order kinetics. Surface site calculation and zeta potential measurement further demonstrated that UO2(CO3)34− was a monolayer adsorbed onto nano-Mg(OH)2 by electrostatic forces. Accordingly, the adsorption behavior met the conditions of the Langmuir isotherm. Moreover, in most of the reported literature, nano-Mg(OH)2 had a higher UO2(CO3)34− adsorption affinity b, which implied a higher adsorption amount at equilibrium in a dilute adsorbate system. The significance of the adsorption affinity b for choosing and designing adsorbents with respect to low concentration of resources/pollutants treatment has also been assessed.
研究领域:
环境科学
·
材料科学
·
放射化学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Zhichao Yu,Jingfeng Wang,Wei Cao,Chang Luo,Shanshan Wang,Zhijun Ding,Lei Guo,Zhihong Qiao,Puhong Wang
Metal oxide semiconductor (MOS) gas sensor is an effective tool for NO 2 detection. In this work, a NO 2 sensor based on MXene-OH/ZnMnO was fabricated via a seed layer induced self-assembly method, exhibiting remarkable gas response value(280) to 100 ppm NO 2 under 25℃ and ultraviolet activation. Besides, the prepared sensor presents ultra-fast response and recovery speeds (8/40 s), low detection limit (250 ppb), and high selectivity. The enhanced sensing performance was explained by the first-principles calculations, showing that the increased electrical conductivity, more electron transfer numbers and higher adsorption energy promotes effective transport of charge carriers on the surface of sensing materials and NO 2 gas molecules.
研究领域:
材料科学
·
环境监测
✓ 已验证
DOI
高影响因子
TALANTA
·
2021
·
IF 6.057
Huazheng Yu,Yanhong Li,Aisheng Huang
Sialic acid (SA) is a crucial component of glycoproteins and glycolipids on the cellular membrane, which is essential for maintaining the function of cell membranes, such as cell recognition and communication. Simultaneously, sialic acid plays a significant role in many physiological and pathological processes. Hence, it is urgent to develop a simple and sensitive strategy for determining sialic acid. In this work, a new metal-organic framework called UiO-66-NH 2 @B(OH) 2 has been designed and synthesized for the recognition and detection of sialic acid. The boronic acid functional group in UiO-66-NH 2 @B(OH) 2 can bind to a diol moiety of the glycerol side chain of sialic acid, which will attenuate or even quench the fluorescence of UiO-66-NH 2 @B(OH) 2 , thus opening a new road to detect sialic acid. Based on the measurement results, sialic acid can be quantitatively measured in a linear range of 0.05–2.5 mmoL/L with the UiO-66-NH 2 @B(OH) 2 probe. The detection limit of sialic acid is as low as 0.025 mmol/L. Furthermore, the boronic-acid functionalized probe UiO-66-NH 2 @B(OH) 2 displays high sensitivity and high selectivity to recognize the sialic acid in mouse serum samples. Therefore, the developed UiO-66-NH 2 @B(OH) 2 can be used as a promising probe to identify and detect sialic acid in the practical application.
研究领域:
分析化学
·
生物化学
·
材料科学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）