CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Xiaotong Lu,Xiaojiao Hou,Peining Han,Yuhang Li,Zhicheng Pan,Tieqiang Wang,Fanbao Meng,Yu Fu
Fe 3+ -dual-driven interfacial synthesis grows PB and PmPD simultaneously • Soft spraying enables one-step and eco-friendly MMM fabrication • PB/PmPD MMM combines photothermal evaporation and membrane separation • MMM realizes molecular-level integration for scalable fabrication A strategy combining soft spraying with Fe 3+ -dual-driven interfacial synthesis is developed to fabricate PB/PmPD mixed matrix membranes (MMMs). Fe 3+ serves dual roles as a coordination center for Prussian blue formation and an oxidant to initiate m -phenylenediamine polymerization (mPD), enabling synchronous generation and in-situ compositing of PB nanoparticles and PmPD matrix at the gas–liquid interface. This synergy enhances structural integrity and interfacial compatibility. The PB/PmPD MMM exhibits excellent performance in both photothermal evaporation and permeation separation. Under solar irradiation, it achieves an evaporation rate of 2.16 kg·m −2 ·h −1 and effectively purifies seawater and wastewater with removal rates exceeding 99%. In terms of membrane separation, it demonstrates over 98% rejection for various dyes, along with water permeance ranging from 89.41 to 117.17 LMH/bar, while exhibiting excellent antifouling and antibacterial properties. This work offers a versatile strategy for constructing multifunctional MMMs integrating evaporation and separation. Download: Download high-res image (153KB) Download: Download full-size image
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高影响因子
Nature Communications
·
2026
·
IF 18.1
Xu Yuyan,Zhang Xinyue,Wan Yangyang,Qin Bingchao,Pei Jun,Liu Hong,Song Xiaoxue,Jiang Shutong,Sun Zhongti,Zhang Yuqiao,Zhang Long,Liu Yong,Yu Qian,Zhao Li-Dong,Li Shun,Zhang Jianming
Hydrogen peroxide (H 2 O 2 ) plays a crucial role in environmental remediation, chemical synthesis, and energy storage. Nevertheless, its industrial production is energy consuming with significant environmental burdens. Here we show a proof-of-concept thermoelectrocatalytic strategy for H 2 O 2 production directly from seawater, driven solely by low-grade waste heat. A low-temperature thermoelectric (TE) material, Na- and Pb-codoped SnSe, is designed as a catalyst that enables efficient H 2 O 2 generation under a moderate temperature gradient (Δ T ). This system achieves an H 2 O 2 production rate of 6.1 mmol g −1 h −1 from seawater under Δ T = 120 K, which is competitive with the representative photocatalytic systems. Experimental and theoretical analyses reveal that Na/Pb-codoping improves the TE properties, promotes charge carrier migration under Δ T , and promotes the oxygen reduction reaction toward H 2 O 2 formation. The naturally formed strong electric layer at the catalyst-seawater interface further promotes both reaction kinetics and thermodynamic driving forces. Our finding provides a sustainable route for H 2 O 2 production from seawater using waste heat and demonstrates great potential of TE-catalysis for waste heat utilization.
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高影响因子
Journal of Chemistry
·
2024
·Vol. 2024
·期 1
·2510050
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IF 2.8
Baoqiang Zhang,Bo Zhao,Longfei Xia,Yingying Sun,Tianqing Chen,Hailan Shi
In order to explore a medium material for the efficient treatment of Pb(II) pollutants in groundwater, in this paper, mudstone is selected as the medium material, and the morphological structure of the mudstone is characterizes via X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer–Emmett–Teller (BET) analyses to study the feasibility of the mudstone adsorbing Pb(II) ions. Then, static adsorption experiments are carried out to investigate the removal effect of mudstone on Pb(II) in aqueous solutions under different conditions and to determine the optimal adsorption conditions. Finally, the results are fitted and analyzed using a thermodynamic model to explore the adsorption mechanism of the mudstone. The main results of this study are as follows. The main mineral composition of the mudstone used in the experiments includes CaCO 3 , SiO 2 , CaAl 2 O 4 ·10H 2 O, and CaFe 4 O 7 . The specific surface area of the mudstone is as high as 23.027 m 2 ·g −1 , the pore size is 9.145 nm, and its surface structure is rough, with pores and fissures developed. The pore space and adsorption capacity of the mudstone were enhanced. When 1 g·L −1 of mudstone was added, the pH value of the solution was 6, the reaction time was 60 min, and the initial concentration of Pb(II) was 30 mg·L −1 . The removal efficiency of Pb reached 84.5%, and the adsorption amount was 25.352 mg·g −1 . For the removal of Pb(II) from the aqueous solution by the mudstone under different concentrations of Pb(II), the reaction was in accordance with the Langmuir adsorption isotherm model, and the maximum adsorption amount reached 54.975 mg·g −1 . The relationship between the removal of Pb(II) and the reaction time was in accordance with the pseudo-second-order rate model. The results of this study suggest that mudstone can be used for the removal of Pb(II) from aqueous media.
研究领域:
环境科学
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地质学
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水污染治理
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2019
·Vol. 26
·期 9
·8902-8913
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IF 2.914
Sun Chen,Chen Tong,Huang Qunxing,Wang Jun,Lu Shengyong,Yan Jianhua
Novel KMnO 4 -treated magnetic biochar (FMBC) was successfully synthesized by addition of Fe(NO 3 ) 3 during carbonization and KMnO 4 treatment following for Pb(II) and Cd(II) adsorption. SEM-EDS, XPS, and ICP-AES were used to evaluate the FMBC and magnetic biochar (FBC) on surface morphology, surface chemistry characteristics, surface functional groups, and Pb(II) and Cd(II) adsorption behavior. Results showed that the Langmuir maximum adsorption quantity of FMBC reached 148 mg/g for Pb(II) and 79 mg/g for Cd(II), nearly 7 times of that of FBC. The enhancement of FMBC for heavy metal adsorption was due to the successful load of manganese oxides and the increased oxygen functional groups consistent with XPS and FTIR results. The adsorption capacities of FMBC were maintained over 95% when the pH value was higher than 2.5 and 3.5 for Pb(II) and Cd(II), respectively. The adsorption performances of both heavy metals by FMBC were hardly influenced by ionic strength and humid acid. The adsorption capacities of FMBC could maintain over 50% and 87% after four cycles for Pb(II) and Cd(II), respectively. The saturation magnetization of FMBC was about 11.5 emu/g, which did not change after adsorption. This work proposed a new method to fabricate a magnetic biochar with high adsorption capacities of heavy metals Pb(II) and Cd(II).
研究领域:
环境科学
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材料科学
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高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Yingying Wang,Fuyu Zhang,Mengshuo Du,Bihe Chen,Yifeng Xu,Wenzhi Tang,Zhonghong Li
Highly toxic Pb(Ⅱ) and Cd(Ⅱ) persist in water and soil, disrupting ecosystems while threatening human health through bioaccumulation. Metal-organic frameworks (MOFs) as adsorbents toward heavy metal ions have garnered significant research attention. However, their adsorption capacity and retrieval are limited by small pore size and powder form. Herein, we designed a defective MIP-202 composite aerogel (DMCA) to efficiently remove Pb(Ⅱ) and Cd(Ⅱ). Mixed ligand (mercaptosuccinic acid) and modulator (butyric acid) were involved in the synthesis of MIP-202, and competed with the original amino acid ligand for binding to Zr clusters leading to the disruption of the original structure of MIP-202 and defect formation. Defective MIP-202 (D-MIP-202) possessed larger BET surface area (from 35.79 to 129.57 m 2 /g) and pore size (from 6.16 to 11.78 nm). Moreover, D-MIP-202 powder and sodium alginate were synthesized into DMCA with abundant adsorption sites and porous structures to enhance the sorption capacities, which were 434.7 mg/g (Pb(II)) and 202.6 mg/g (Cd(II)). The adsorption process primarily occurs on the heterogeneous surface of the material and represents a spontaneous chemisorption behavior. The adsorption mechanism is attributed to chelation, and ion exchange. This study presents an effective strategy for the remediation of heavy metal ions in aqueous systems.
研究领域:
环境科学
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材料科学
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污染控制化学
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吸附分离
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功能材料
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DOI
高影响因子
Nature Photonics
·
2025
·
IF 32.9
Yang Xuke,Ma Tianjun,Hu Haojun,Ye Wenjiang,Li Xin,Li Mingyu,Zhang Afei,Ge Ciyu,Sun Xianglang,Zhu Yongxin,Yan Shuyu,Yan Jun,Zhou Ying,Li Zhong’an,Chen Chao,Song Haisheng,Tang Jiang
All-perovskite tandem solar cells are promising as next-generation high-efficiency photovoltaic devices. However, further progress in tin-lead (Sn–Pb) mixed perovskites, which are essential as the narrow-bandgap bottom sub-cell, is hampered by unbalanced crystallization processes, leading to inhomogeneous films and reduced power conversion efficiency (PCE). Here we provide a complete understanding of the formation of Sn–Pb films, from the precursor solution to the final film. We find that the total crystallization barrier for Sn-based perovskites is limited by the desorption of dimethyl sulfoxide (DMSO), while Pb-based perovskites experience a smaller DMSO desorption barrier. By engineering the reaction barrier in mixed films via tailoring the DMSO content, we obtain synchronous Sn–Pb perovskite crystallization and high-quality homogeneous films. On the basis of this understanding, we demonstrate single-junction Sn–Pb perovskite solar cells with a PCE of 22.88% and all-perovskite tandem devices with a certified PCE of 28.87%, fabricated by antisolvent-free methods. The unencapsulated tandem devices retain 87% of their initial PCE after about 450 h with maximum power point tracking under 1 sun illumination.
研究领域:
材料科学
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能源科学
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
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2025
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IF 19
Kanghui Ke,Yu Gao,Jiazhi Meng,Yi He,Bohua Deng,Haoyu Huang,Si-Wei Zhang,Kai Zhang,Zhuhua Xu,Huan Li,Xiongxian Yao,Zilong Ye,Liping Song,Chang Shu,Shihe Yang,Ni Qin,H. Y. Fu,Hin-Lap Yip,Feiyu Kang,Guodan Wei
Developing stable and efficient photodetectors (PDs) for environmentally friendly applications such as biological imaging, optical communications, and wearable electronics demands novel materials with improved optoelectronic properties. Herein, by precisely controlling the Pb 2 ⁺ content (3%, 6%, and 12%) using a galvanic displacement reaction (GDR), we created a mixed 2D/3D phase structure that enhances the quality of the Sn-Pb thin films, which improved crystalline orientation, suppressed trap-assisted recombination and reduced Sn 2+ oxidation processes, resulting in superior environmental stability under air exposure conditions. The flexible device demonstrated robust stability, maintaining performance after 4000 bending cycles or 96 h of storage in ambient conditions. The self-powered quasi-2D Sn-Pb PDs exhibit an impressively low dark current of 1.2 × 10 −8 A cm −2 , rapid rise and decay time of 684 and 683 ns, a peak responsivity of 405 mA W −1 , and a peak detectivity of 1.19 × 10 13 Jones at 710 nm. Additionally, under LED illumination (λ = 910 nm), the photodetectors also demonstrate high fidelity in optical signal transmission, successfully facilitating encrypted communication sequences and image transmission at a rate of 25 kbps. This work presents a promising strategy for developing high-performance, stable quasi-2D Sn-Pb perovskite photodetectors, highlighting their potential for next-generation photodetectors in flexible, real-world environments.
研究领域:
材料科学
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光电子学
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环境科学
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DOI
高影响因子
CERAMICS INTERNATIONAL
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2024
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IF 5.1
Xinyu Liu,Taotao Ai,Yazhong Zheng,Xinyu Chen,Qin Li,Qian Qiu,Ying Zheng,Yuan Zhou,Haikui Song,Kun Yu,Chunlin Song,Haibo Zhang,Yan Yan,Gang Liu
The lead-free piezoelectric ceramics used in piezoelectric actuators have attracted extensive attention owing to their substantial electric-field-induced strain. In this study, The (1- x )Bi 0.5 (Na 0.41 K 0.09 )TiO 3 - x Sr(Hf 0.5 Sb 0.4 )O 3 (BNKT- x SHS) piezoelectric ceramics were synthesized using the conventional solid-state reaction method. The impact of SHS substitution on the microstructure and electrical properties was systematically explored. Among them, the BNKT-0.015SHS sample, featuring ergodic relaxor states, demonstrates a high piezoelectric strain coefficient ( d 33 *) of 785 p.m./V under a low electric field of 50 kV/cm(Strain = 0.392 %). It exhibits a repeatable strain value of 0.47 % under an 80 kV/cm electric field( d 33 * = 590 p.m./V). Moreover, the strain values remain around 0.4 % between room temperature and 100 °C, with variations within 90 %. The heightened repeatable strain response is considered to be linked to the electric field-induced reversible phase transition occurring within the ergodic relaxor state. The higher strain temperature stability is ascribed to the coexistence of quadrilateral polar nanoregions and rhombic polydomain nanoregions. This study provides an effective example for achieving significant strain responses, presenting a feasible candidate material for applications in piezoelectric actuators.
研究领域:
材料科学
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物理学
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高影响因子
JOURNAL OF SOILS AND SEDIMENTS
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2025
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IF 3
Jin Meiqing,Sun Yuanchao,Chai Bing,Wang Minghu,Wu Yuping,Wu Weihong,Zhou Qingwei,Qiu Linlin,Du Jia,Fu Li
Purpose Decabromodiphenyl ethane (DBDPE) and lead (Pb), two prevalent contaminants in e-waste dismantling areas, pose significant threats to soil ecosystem health. However, the ecotoxicological effects of their co-exposure on soil invertebrates remain poorly characterized. Methods Avoidance behavior, survival rate, and growth-inhibition assays were performed to assess the combined toxic effects of DBDPE and Pb on earthworm ( Eisenia fetida ) in an artificial soil system over exposure periods of 7–21 d. Responses from multiple biochemical biomarkers, including superoxide dismutase (SOD), catalase (CAT), malondialdehyde (MDA), glutathione S-transferase (GST), and acid phosphatase (ACP) were also measured, and the data were integrated by the biomarker response index (BRI). Interaction between Pb and DBDPE on BRI was further analyzed by calculation of effect addition index (EAI). Results Avoidance behavior emerged as the most sensitive endpoint and exhibited concentration-dependent escalation under co-exposure conditions. While individual exposure to DBDPE (0–0.75 mg/kg) induced negligible impacts on growth and mortality, its combination with Pb (1000 mg/kg) resulted in significant synergistic effects. Similarly, biochemical biomarkers—including SOD, CAT, MDA, GST, and ACP—showed markedly greater alterations in co-exposure groups compared to single DBDPE treatments. The BRI revealed only slight alterations in biological health across most treatments. The EAI values indicated that antagonistic effects dominated the interaction between DBDPE and Pb. Conclusion Our findings demonstrated significant variation in biomarker sensitivity to pollutant exposure. Notably, short-term sub-lethal co-exposures may elicit synergistic effects on avoidance, growth, and mortality, revealing a time-concentration toxicity dependency. These results provide novel insights into the interaction between heavy metals and organo-pollutants and highlight the ecological hazards posed by emerging brominated flame retardants (e.g., DBDPE) in heavy metal-contaminated soil systems.
研究领域:
环境科学
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毒理学
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产品关联
DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2018
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IF 3.235
Xueni Lin,Zhiwei Lu,Wanlin Dai,Baichen Liu,Yuxin Zhang,Junye Li,Jianshan Ye
Recently, graphene-based nanomaterials have attracted widespread attention as new electrode-modified materials for different electrochemical sensing platforms. However, graphene-based nanomaterials modified heavy metal sensors often have the disadvantages in that their detection ranges are not wide enough. To solve this problem, an easy and feasible approach derived from laser engraving technique to fabricate a high-quality 3D porous graphene-based heavy metal sensor with a quite wide detection range was established. The nitrogen-doped laser engraved graphene (N@LEG) was synthesized via introducing polyaniline (PANI) and polyvinylpyrrolidone (PVP) as N-dopant. Herein, by coupling the unique electrochemical properties and the 3D porous structure framework with large electrochemical active surface areas of LEG with the strong metal ions affinity of N atoms, N@LEG modified glassy carbon electrode (N@LEG/GCE) with in-situ bismuth film modification has been successfully utilized for the simultaneous determination of Cd(II) and Pb(II) using square wave anodic stripping voltammetry (SWASV). After optimizing conditions, the proposed sensor exhibits quite wide linear ranges varying from 5 to 10 g L −1 and 10 to 380 g L −1 for Cd(II), and 0.5 to 10 μg L −1 and 10 μg L −1 to 380 μg L −1 for Pb(II), respectively. In addition, the detection limits are calculated to be 1.08 g L −1 (S/N = 3) for Cd(II) and 0.16 g L −1 (S/N = 3) for Pb(II), which are nearly 3 times and 60 times less than the guideline values of the drinking water presented by the World Health Organization (WHO), for Cd(II) and Pb(II), respectively. Furthermore, the results describe satisfactory advantages of remarkable sensitivity, selectivity, anti-interference, repeatability, reproducibility and stability. Besides, the fabricated sensor is proved to be a potential perspective to detect Cd(II) and Pb(II) in actual water samples.
研究领域:
材料科学
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分析化学
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DOI
高影响因子
RSC Advances
·
2017
·Vol. 7
·期 5
·2842-2850
·
IF 3.108
Zhang Yun-fei,Halidan Maimaiti,Zhang Bo
Nanocrystalline cellulose (NCC) with a particle size of 23.80 ± 0.33 nm was prepared from microcrystalline cellulose by a mixed treatment with acids and ultrasound. The NCC was chlorinated with thionyl chloride, submitted to dehydrating carbonization and oxidization, and then modified with ethylenediamine (EDA) to obtain fluorescent carbon nanoparticles (NCC–EDA). These were characterized by elemental analysis, TEM, BET, FT-IR, XRD, TG-DTA, XPS, UV-Vis, and photoluminescence. It was found that NCC–EDA were vesicle-like porous particles formed through the linking and intertwining effects of EDA on the SOCl2-treated NCC. The surface of NCC–EDA is rich in oxygen-, nitrogen- and sulfur-containing functional groups, and the particle size was 41.45 ± 0.55 nm. This endows the NCC–EDA with good dispersity in water, high absorbance and strong fluorescence. The NCC–EDA are shown to be viable probes in that their fluorescence is selectively quenching by Pb(II). The findings were exploited to design a fluorometric assay for Pb(II) that has a 24 nM detection limit.
研究领域:
材料科学
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环境科学
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分析化学
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DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
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2022
·
IF 9.136
Yu Ma,Dongyu You,Yu Fang,Jian Luo,Qinhe Pan,Yunling Liu,Fei Wang,Weiting Yang
The removal of lead ions from water is a global concern due to the great damage to human health when they enter the human body through drinking water. Herein, metal-organic framework/chitosan composite beads for the adsorption of Pb(II) were prepared by the secondary growth method, which allowed the domain-limited growth of TIF-A1 (a tetrahedral imidazolate framework) in the porous matrix of chitosan. This material can remove trace Pb(II) from aqueous solution (100 ppb) with an efficiency of 99.95%, and the remaining Pb(II) content meets the international drinking water standards. Moreover, it exhibited good recoverability for at least five adsorption/desorption cycles. The adsorption mechanism can be ascribed to that Pb(II) ions chelate with the hydroxyl, carboxyl and amino groups in the adsorbent. This work offers a good adsorbent for the removal of trace Pb(II), which has potential applications in reclaimed water treatment.
研究领域:
环境科学
·
材料科学
·
水处理
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DOI
高影响因子
危险品化学品经营许可证（带存储）