ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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2022
·Vol. 29
·期 28
·43169-43178
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IF 5.19
Piao Mingyue,Du Hongxue,Sun Yuwei,Teng Honghui
Hybrid hydrogel was synthesized by immobilizing TiO 2 in polyethylene glycol diacrylate (TiO 2 @PEGDA) as an efficient adsorbent with photocatalysis property for bisphenol A (BPA) elimination. TiO 2 @PEGDA exhibited spherical and rough structure with limited crystallinity and abundant functional groups. The contact angle increased to 61.96° (TiO 2 @PEGDA) from 46.73° (pristine PEGDA), indicating that hydrogel hydrophilicity decreased due to the presence of TiO 2 . The swelling capacity of TiO 2 @PEGDA (9.0%) was decreased compared with pristine PEGDA (15.6%). Adsorption results demonstrated that the maximum adsorption capacity of TiO 2 @PEGDA (101.4 mg/g) for BPA was slightly higher than that of pristine PEGDA (97.68 mg/g). The adsorption capacity was independent with pH below 8 and decreased obviously when the value of pH was higher than 8. The adsorption behavior was fitted well with the pseudo-second-order kinetic and the Langmuir isotherm model. Both ΔG 0 and ΔH 0 were negative, indicating that BPA adsorbed on TiO 2 @PEGDA was an exothermic and spontaneous process. Regeneration study was performed by photocatalysis, and the adsorption capacity was 85.6% compared with the initial capacity after four-cycle use, indicating that TiO 2 @PEGDA could be recycled without significant adsorption capacity loss. Consequently, TiO 2 @PEGDA can serve as an eco-friendly and promising material for efficiently adsorbing BPA with self-clean property.
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
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2021
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IF 9.229
Cuicui Su,Yumin Ye,Haofeng Qiu,Yabin Zhu
Biofilm formation on indwelling medical devices is a major cause of hospital-acquired infections. Monofunctional antibacterial surfaces have been developed to resist the formation of biofilms by killing bacteria on contact, but the adsorption of killed bacterial cells and debris gradually undermines the function of these surfaces. Here, we report a facile approach to produce an antibacterial surface that can regenerate its function after contamination. The self-regenerating surface was achieved by sequential deposition of alternating antibacterial and biodegradable layers of coating using a solvent-free initiated chemical vapor deposition method. As the top antibacterial layer gradually loses its killing ability due to the accumulation of debris, the underlying biodegradable layer degrades, shedding off the top surface layers and exposing another fresh antibacterial surface. Urinary catheters coated with monofunctional and self-regenerating antibacterial coatings both showed more than 99% bacterial killing ability at the initial antibacterial test, but the monofunctional surface lost its killing ability after continued exposure to concentrated bacterial solution, whereas the self-regenerating surfaces regained strong bacterial killing ability after prolonged exposure. Employing poly(methacrylic anhydride) and its copolymers with varied composition as the degrading layer, the degradation kinetics can be well-tailored and the self-regeneration duration spanned from minutes to days. The designed self-regenerating antibacterial surfaces could provide an effective approach to resist biofilm formation and extend the service life of indwelling medical devices.
研究领域:
生物医学工程
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材料科学
✓ 已验证
DOI
PubMed
高影响因子
Applied Materials Today
·
2025
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IF 6.9
Hangyu Miao,Yongli Liao,Peng Wang,Wenliang Wang,Jiaxuan Zhang,Zhe Li,Jie Liu,Tong Huang,Ziheng Zheng,Wen Duan,Ying Yue,Yunpeng Liu
Superhydrophobic materials have garnered significant interest due to their exceptional performance across various applications. However, conventional superhydrophobic coatings are susceptible to degradation in extreme environments, resulting in functional failure. Drawing inspiration from ancient Chinese rammed earth technology, this study introduces a novel superhydrophobic monolith with a uniform structure and self-regenerative recyclability, fabricated through a stamping process. The developed monolith exhibits a remarkably high contact angle (157.2°) and a low roll-off angle (2.7°). It consists of room-temperature vulcanized (RTV) silicone rubber and superhydrophobic silica nanoparticles synthesized via high-pressure stamping.Through the integrated“polymer + nano-component”stamping approach, the fabricated superhydrophobic monolith achieves a compact and continuous internal structure, coupled with high compressive strength. Following 20,000 abrasion cycles under a 250 g load using rigid ceramic grinding wheels, the material exhibits a mass loss of only 26.501 r/g and a thickness loss of 14.932 r/mm, significantly surpassing the durability of other superhydrophobic materials. Notably, the worn surface retains its superhydrophobic properties.Furthermore, the monolith displays outstanding resistance to acid/alkali corrosion, salt spray exposure, and UV-induced degradation. The structural integrity imparted by the stamping process ensures the retention of its initial superhydrophobicity during recycling, underscoring its suitability for post-use recovery. This advancement expands its potential applications in industrial settings.
研究领域:
材料科学
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纳米技术
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DOI
高影响因子
Water
·
2023
·Vol. 15
·期 20
·3697
·
IF 3.4
Muneerah Alomar,Badriah S. Almutairi,Seham S. Alterary,Manal A. Awad,Fida Hussain,Awatif A. Hendi,Maha F. El-Tohamy,N. Al-Hoshani
Water scarcity is a serious issue which is increasing gradually due to rapid industrialization and population explosion. Biomass-inspired photothermal materials are of great importance due to their low-cost and enhanced photothermal conversion efficiencies. Herein, a pyrolyzed honokiol biochar (HB) is successfully synthesized to fabricate a self-regenerating solar evaporating system for in situ freshwater, and salt collection from seawater. The pyrolyzed biochar was innovatively printed onto a non-woven fabric (HB@NF) that exhibits excellent solar absorption (96%), and efficient stability in seawater. The self-regenerating structure is constructed in two parts: (1) HB-printed fabric as a photothermal layer for efficient solar-to-vapor conversion efficiencies (93%) under 1 kW m−2. (2) Umbrella-like centralized seawater supply via cigarette filter to achieve the Marangoni effect for in situ water evaporation and salt collection. More importantly, effective thermal management achieved efficient heat accumulation (48.5 °C) under one sun intensity (1 kWm−2), and its validation is also demonstrated in a COMSOL heat transfer simulation. Furthermore, a series of experiments on salt collection over different periods, evaporation stability under different cycles, and rejection of primary metal ions via Inductively Coupled Plasma–Optical Emission Spectrometry (ICP–OES) have been investigated. It is believed that this work will create new avenues regarding in situ freshwater and minerals recovery from seawater.Keywords:water scarcity;solar evaporation;honokiol;self-regeneration;freshwater;salt collection
研究领域:
环境科学
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材料科学
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化学工程
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可再生能源
✓ 已验证
DOI
高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
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2025
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IF 21.1
Pingzhen Li,Changlong Zheng,Zhen Zhang,Wei Liu,Xiaodong Wu,Shuang Liu
Due to the difficulty of integrating platinum into the perovskite lattice, it is yet challenging to build robust Pt catalysts through the “exsolution” strategy. In this article, we showed that by simply inserting a 500 ℃ holding period in the calcination process of a precursor that obtained via citric acid-assisted sol-gel methods, a homogeneous Pt-incorporated LaFeO 3 perovskite could be synthesized. Further characterizations evidenced that a La 4 PtO 7 phase, probably derived from the reactions among Pt ensembles, gaseous O 2 , crystallized La 2 O 2 CO 3 and La(OH) 3 , played a key role in preserving the platinum in a “dissolved” state during perovskite crystallization. Based on this perovskite system, an “intelligent catalyst” with well-dispersed exsolved Pt nanoparticles and relatively large surface area was produced, which was not only highly reactive for the complete oxidation of C 3 H 6 and CO, but also immune to the sintering effects induced by aging treatments. The above observations provide a typical example on how the slight changes in synthesis significantly influence the structure-property relationship of the catalysts obtained via exsolution methods, and how to utilize these knobs to obtain practical catalysts.
研究领域:
材料科学
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催化化学
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产品关联
DOI
高影响因子
Small
·
2025
·
IF 12.1
Qinglian Liu,Jianglin Wu,Jiajia Zhang,Fuan Wang,Zhongwei Jiang,Yi Wang,Xue Gong,Pu Zhang
Heart failure (HF) is a globally threatening cardiovascular disease associated with poor quality of life and high mortality, therefore, timely diagnosis and risk prediction for HF disease are urgently needed. Herein, a compact yet robust self-regenerated hybridization circuit (SHC) aptasensor is developed for the amplified detection of N-terminal pro-brain natriuretic peptide (NT-proBNP), a “gold standard biomarker” for HF. The aptamer transduction module can specifically recognize NT-proBNP, thus initiating the cascade hybridization reaction with the successively self-regenerated triggers that reversely initiate the cross-hybridization reaction. Benefiting from the aptamer-specific recognition and the self-replicated signal amplification, the robust SHC aptasensor demonstrated a more impressive diagnostic performance for HF in elderly patients than the clinical fluorescence immunochromatography assay (FICA) in terms of positive predictive value (21 vs 17), specificity (39 vs 32), and diagnostic accuracy (37 vs 36). Furthermore, this approach allows for differentiation among HF patients with varying disease severities, achieving a sufficiently high accuracy of 78.3%, thus facilitating more timely and accurate therapeutic intervention. The versatile and reliable SHC system offers a new approach to analyzing low-abundance biomarkers from clinical rare specimens, which is highly important for early disease diagnosis and prognosis assessment.
研究领域:
医学
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生物传感
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心血管病学
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产品关联
DOI
PubMed
高影响因子
Advanced Healthcare Materials
·
2021
·Vol. 11
·期 8
·2102074
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IF 9.933
Tian Hu,Chuncheung Chan,Min-Zhao Lin,Huaitian Bu,Bin Liu,Gang-Biao Jiang
Self-regenerative hydrogels have recently been developed, and represent a special type of self-healing hydrogels with the ability to restore a dehydrated hydrogel with physical damage. In this study, a self-regenerative hydrogel (COCu) based on two chitosan polymers assembled by slow-released Cu 2+ is developed. The COCu hydrogel displays an excellent regeneration ability after being dehydrated and fractured. By simple hydration at room temperature, the fragments of the dehydrated gel fuse into one seamless whole, thereby preserving the mechanical properties and functionalities of the original hydrogel. The regeneration process can be conducted repeatedly after different methods of dehydration (natural volatilization, heat drying, lyophilization) and various modes of deconstruction (flakes, powder, lumpy sponge, etc.). Furthermore, the COCu hydrogel provides ultra-stretchability, and it can be stretched into thin (0.01–0.1 mm) filaments, which, when dried (dtCOCu), can be used as suture lines. Moreover, when used as a dry suture, it regenerates into the hydrogel in the presence of the tissue fluid, forming an excellent sealant to immobilize tissues and seamlessly seal wounds. The fast self-regeneration allows for its facile application as both a hydrated gel dressing and dry suture, and offers customized strategies for fixing and repair of different wounds in soft tissues.
研究领域:
材料科学
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生物医学工程
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组织工程
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产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2021
·Vol. 12
·期 1
·1-11
·
IF 14.919
Hou Shengtai,Ma Xuefeng,Shu Yuan,Bao Jiafeng,Zhang Qiuyue,Chen Mingshu,Zhang Pengfei,Dai Sheng
The sintering of Supported Transition Metal Catalysts (STMCs) is a core issue during high temperature catalysis. Perovskite oxides as host matrix for STMCs are proven to be sintering-resistance, leading to a family of self-regenerative materials. However, none other design principles for self-regenerative catalysts were put forward since 2002, which cannot satisfy diverse catalytic processes. Herein, inspired by the principle of high entropy-stabilized structure, a concept whether entropy driving force could promote the self-regeneration process is proposed. To verify it, a high entropy cubic Zr 0.5 (NiFeCuMnCo) 0.5 O x is constructed as a host model, and interestingly in situ reversible exsolution-dissolution of supported metallic species are observed in multi redox cycles. Notably, in situ exsolved transition metals from high entropy Zr 0.5 (NiFeCuMnCo) 0.5 O x support, whose entropic contribution (TΔS config = T ⋆ 12.7 J mol −1 K −1 ) is predominant in ∆G, affording ultrahigh thermal stability in long-term CO 2 hydrogenation (400 °C, >500 h). Current theory may inspire more STWCs with excellent sintering-resistance performance.
研究领域:
催化
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材料科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
DESALINATION
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2025
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IF 9.8
Yan Feng,Weitong Liu,Chengzhi Wang,Su Sun,Shuo Zhang,Yuxi Liu,Juan Tan
The sustainable management of phosphorus, a vital yet scarce resource, is severely challenged by its excessive discharge into water bodies, which causes eutrophication. Achieving ultralow phosphate concentrations while enabling efficient recovery demands advanced materials that transcend the capacity and functionality limits of conventional adsorbents. Herein, we report a rationally designed MnLa-layered double hydroxide (LDH) with synergistic redox-acid bifunctional sites for self-regenerative phosphate capture and recovery. This material achieves an exceptional adsorption capacity of 108.87 mg P/g and reduces phosphate to trace levels below 0.012 mg/L, surpassing stringent eutrophication thresholds. Crucially, the MnLa-LDH exhibits self-enhanced functionality: the La 3+ acid sites provide strong Lewis acidity for specific inner-sphere complexation, while the adjacent Mn 2+ /Mn 3+ redox couples act as a molecular engine to dynamically regenerate surface hydroxyl groups, sustaining high activity over multiple cycles. Systematic characterization confirms that phosphate uptake triggers a dynamic structural self-optimization, remarkably increasing the specific surface area by 112.6 %. The material demonstrates broad pH adaptability, high selectivity, and outstanding reusability (87.5 % capacity retention after 10 cycles) with 92.3 % phosphate recovery. This work provides a novel design paradigm for smart environmental functional materials based on synergistic site engineering, paving the way for sustainable water treatment and closed-loop resource circulation.
研究领域:
环境化学
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材料科学
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水处理
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资源循环
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吸附科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2021
·
IF 13.273
Chao Zhu,Shuang Song,Qile Fang,Jingkai Zhao,Da Wang,Feilong Dong,Weiting Yu,Yi Shen
Organic micro-pollutants (OMPs) in the aqueous environment are difficult to be removed by conventional wastewater treatment processes due to their slow kinetics and poor biodegradability. The strategy of sequential concentration and catalytic oxidation in situ provides a great potential scenario to enhance the removal efficiency of OMPs. In this study, adsorption-photocatalytic dual-functional aerogels (3D GCPA) with tunable pore structure are developed by coupling graphene nanosheets and covalent triazine frameworks via polyvinyl alcohol. Through the control of pore morphology, the size effect of mass transfer and photocatalytic removal of pollutants in low concentration is revealed for the first time. The results show that inerratic and modest pore structure are conducive to the exposure of active sites and interfacial charge transfer. The optimized pore configuration of 3D GCPA-m exhibits outstanding adsorption capacity (1862 μmol/g for BP-2) and self-regeneration performance (89.3% in the fourth cycle). The degradation process is dominated by hydroxyl radical oxidation. Furthermore, the natural water application of 3D GCPA-m shows stability and universality, which still maintains the percentage regenerated of 86.0% after a 7-day consecutive cycle. This study develops the comprehension of size effects in the removal of trace pollutants and presents an efficient and portable strategy to control OMPs.
研究领域:
环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
·
IF 9.965
Yahui Cai,Youming Dong,Kaili Wang,Dan Tian,Jiafu Qu,Jundie Hu,Jechan Lee,Jianzhang Li,Ki-Hyun Kim
A better knowledge for the design and synthesis of low-cost, novel porous materials is highly desirable in various fields such as recyclable solar desalination and liquid recycling. Herein, a polydimethylsiloxane-based sponge with a web-like three-dimensional (3D) interconnected porous structure was developed for effective recovery of liquids and the continuous interfacial solar steam generation (ISSG). The sponge is capable of conducting directional transport of oil or organic solvents at temperatures above 32 °C while automatically controlling the desorption of the organic phase below 28 °C. The synergistic combination between high light absorption (above 95 %) and light-to-heat conversion efficiency (99.87 %) resulted in a considerably high seawater evaporation rate (1.66 Kg m −2 h −1 ) under 1 sun. The self-regeneration of the evaporator is facilitated by the salt barrier function of the large channels of the smart sponge with high hydraulic conductivity. This sponge can maintain a maximum evaporation rate up to the 5 consecutive days operation with the co-benefit of real-time regeneration and the reversible switching of the wettability . The reusable smart sponge evaporators are highly efficient in generating clean water from seawater with satisfactory ion rejection rates (above 99.6 %). As such, the prepared sponge shows great potential in environmental restoration, metal recovery, and water regeneration.
研究领域:
材料科学
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环境科学
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能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Molecular Catalysis
·
2021
·
IF 5.062
Haijun Guo,Shuai Ding,Hairong Zhang,Can Wang,Fen Peng,Lian Xiong,Xinde Chen,Xinping Ouyang
The acid-activated Palygorskite (H + -PAL) was applied to support Cu(M)NiCoB amorphous alloy catalysts with high-activity and self-regeneration ability for selective hydrogenation of butyl levulinate (BL) to γ-valerolactone (GVL). The catalysts were characterized by ICP-OES, nitrogen physisorption, XRD, FE-SEM, TEM, XPS, H 2 -TPD, NH 3 -TPD and FTIR-pyridine adsorption techniques. Compared to the unsupported Cu 0.5 Ni 1 Co 1 B catalyst, the Cu 0.5 Ni 1 Co 1 B/H + -PAL catalyst showed the highest GVL yield of 96.3 % with BL conversion of 99.7 % at 200 °C. When Mo was doped into the Cu 0.5 Ni 1 Co 1 B/H + -PAL catalyst, the GVL yield showed gradually increase to 95.7 % with BL conversion of 100 % after five times run. The high activity and self-regeneration ability was attributed to the Mo doping effect and the synthetic effect between Cu hydrogenation active species and H + -PAL support. Various characterization results indicated that Mo acted as both structural promoter to improve the dispersion of metallic Cu and CuMoNiCoB amorphous alloy and electronic promoter to enhance the formation and increase the fraction of Cu + species. In addition, the incorporation of Mo provided more Lewis acid sites to promote BL conversion to GVL and GVL conversion to 1,4-PDO and n-PeOH. On the basis of characterization and catalytic performance testing results, the synergistic effect between CuMoNiCoB amorphous alloy and Cu 2 O/Cu hydrogenation sites and Lewis/Brønsted acid site of H + -PAL support is considered to be the key to produce GVL.
研究领域:
化学工程
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催化
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）