CHEMICAL ENGINEERING JOURNAL
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2025
·
IF 13.2
Jianping Yang,Xingyue Zhou,Wei Zheng,Penglin Zhu,Fanyue Meng,Zequn Yang,Wenqi Qu,Hailong Li
Efficiently removing elemental mercury (Hg 0 ) from natural gas is a serious task to both equipment safety and ecosystem. The granulation of adsorbent powder is required to reduce pressure loss and adsorbent elutriation from a fixed-bed demercuration system. Herein, urea modified CuO (Urea/CuO) pellets were developed for Hg 0 adsorption from natural gas with H 2 S. The characterization results show that the addition of urea accelerated the formation of pore structure and surface oxygen, thus enhancing the Hg 0 adsorption performance of CuO pellets. The Urea/CuO pellets with 20 % urea additive amount exhibited 93 % Hg 0 removal efficiency under the existence of 500 ppm H 2 S and a gaseous hourly space velocity of 1.21 × 10 5 h −1 . H 2 S was essential to in-situ convert Urea/CuO pellets into a highly active Hg 0 adsorbent. With the increase of H 2 S concentration from 0 to 1000 ppm, the Hg 0 removal efficiency was raised from 34 % to 93 %. Urea/CuO pellets performed well for Hg 0 adsorption at 10–50 °C, which was the representative temperature window of natural gas processing. The Hg 0 adsorption capacity and uptake rate of Urea/CuO with 500 ppm H 2 S reached as high as 27.06 mg·g −1 and 2.44 μg·g −1 ·min −1 , which largely exceeded those of commercial activated carbons specialized for Hg 0 adsorption as well as typical granulated Hg 0 adsorbents reported in previous literature. The existence of H 2 S in natural gas in-situ converted CuO into CuS. The S 2 2− on the formed CuS could act as active sites for Hg 0 adsorption, in which gaseous Hg 0 was captured as stable mercury sulfide (HgS). The deactivated adsorbent could be regenerated and reused by thermally decomposing HgS and replenishing the consumed surface oxygen and the sintering surface. With these advantages, the developed Urea/CuO pellets appears to be a promising Hg 0 adsorbent from natural gas with H 2 S.
研究领域:
环境工程
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材料科学
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化学工程
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气体净化
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污染控制
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高影响因子
Surfaces and Interfaces
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2025
·
IF 6.3
weiwei he,Dan Xu
Industrial wastewater is characterized by the complex coexistence of multiphase contaminants, including waste oil, persistent organic dyes, and other refractory pollutants. The efficient separation and degradation of such wastewater have become the key challenges that urgently need to be broken through in the field of environmental functional materials. In response to this demand, Polyvinylidene fluoride (PVDF)/Styrene-co-maleic anhydride (SMA)/Copper sulfide (CuS) composite membranes, integrating antibacterial activity, oil-water separation, and dye degradation functionalities, were fabricated via novel non-solvent induced phase inversion and in-situ deposition techniques. The PVDF/SMA/CuS membranes exhibited a bacteriostatic efficiency of 99%. For oil-water separation, their efficiency for typical oil-in-water emulsions exceeded 98.4%, remaining above 90% after five consecutive recycling cycles, demonstrating excellent operational stability. Under visible light irradiation, the PVDF/SMA/CuS membrane achieved complete degradation of Rhodamine B (RhB) and Methyl Orange (MO) solutions within 9 minutes, and Cochineal (Ponceau 4R) solution within 6 minutes, via a photo-Fenton-like reaction. Notably, the membrane retained a dye degradation efficiency above 94% after five cyclic runs, confirming its long-term catalytic durability. As a result, this membrane can treat dye wastewater and oily wastewater efficiently and quickly. This study presents a readily implementable wastewater treatment technology with excellent anti-fouling performance and high efficiency, highlighting its substantial practical application prospects in environmental remediation.
研究领域:
环境科学技术
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材料科学
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化学工程
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水处理
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功能材料
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Hui-Tao Fan,Zhou Wu,Ke-Cheng Liu,Wei-Sheng Liu
Photocatalysis based on metal sulfide semiconductor is considered as an economic, safe, renewable, and clean technology. However, the availability of photocatalysts is limited by the low solar energy utilization efficiency and the fast recombination of photogenerated electron-hole pairs. Developing a hollow heterostructure photocatalyst based on semiconductors for enhancing solar energy utilization and separation efficiency of photogenerated carriers is crucial in the photocatalytic H 2 production reaction. The as-prepared 3D hierarchical nanocages photocatalyst CuS@ZnIn 2 S 4 with abundant and compact nanosheets 2D/2D hetero-interfaces displayed an improved photocatalytic hydrogen evolution rate as high as 7910 μmol h −1 g −1 in the absence of any cocatalyst. This is the first report of the use of CuS nanosheets-assembled hollow cubic cages to construct 3D hierarchical nanocages photocatalysts. The close distance between the two nanosheet subunits induce the strong interaction, which was advantage to the separation and transfer of charge carriers. In addition, the hollow structure can not only enhance light adsorption, but also suppress photogenerated carrier recombination. The experimental characterizations and theory calculations confirmed that the strong interaction between CuS and ZnIn 2 S 4 2D/2D hetero-interfaces can extremely facilitate the separation of photogenerated charge carriers and accelerate the electrons transfer. The present work provides a feasible method to construct heterojunction photocatalyst for hydrogen evolution via water splitting powered.
研究领域:
材料科学
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光催化
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纳米技术
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能源化学
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半导体物理
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可持续能源
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Yugui Shao,Manyi Gao,Yihang Yin,Peng Xiang,Jie Gao,Xinming Zhang,Liping Zhang,Li Li,Xudong Xiao,Baojiang Jiang
Construction of a novel Z-scheme MIL-88@CuS heterojunction that couples photocatalysis with a Fenton-like reaction system. • MIL-88@CuS achieves synchronous photocatalysis/Fenton-like synergistic degradation of tetracycline. • The Z-scheme mechanism and built-in electric field significantly promote charge separation and interfacial electron transfer. • Effectively accelerate the redox cycle of Cu(II)/Cu(I), continuously generating highly active OH free radicals. • Achieves 93% tetracycline degradation within 60 min under visible light, with significantly enhanced performance. The widespread discharge of antibiotic residues into natural water environment have become a new water pollution problem, posing significant risks to aquatic ecosystems and human health. Herein, we report the utilization of a Z -scheme MIL-88@CuS nanocomposite that functions as a synergistic photocatalysis-Fenton-like system for the degradation of tetracycline antibiotics (TC). Mechanistic investigations reveal that the built-in electric field and Z-scheme electron transfer channel in MIL-88@CuS greatly facilitates charge separation and accelerates electron transfer to the CuS surface, thus boosting Cu(II)/Cu(I) circulation and producing more active hydroxyl radical (·OH) for TC oxidation degradation. As a result, the as-prepared MIL-88@CuS exhibits excellent photocatalytic TC degradation activity with the removal efficiency of 93% in 30 min under visible-light irradiation, much higher than that of simple MIL-88 or CuS samples. This work may provide an efficient and low-cost strategy for the remediation of antibiotic-contaminated water. Herein, we report a Z -scheme MIL-88@CuS nanocomposite as the synchronous photocatalysis-Fenton-like system to eliminate TC, which can accelerate the one-electron redox cycle of Cu(II)/Cu(I) and produce more active ·OH radicals for efficiently TC degradation. Download: Download high-res image (144KB) Download: Download full-size image
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Muhammad Atif Ali,Bushra Shakoor,Naila Arshad,Muhammad Sohail Asghar,Ghazala Maqsood,Muhammad Sultan Irshad,Xianbao Wang
A 3D coaxial cylindrical CuS/PPy nanoflower fabric is fabricated. • Convective heat recycling for high-efficiency solar water evaporation. • Achieved a remarkable evaporation rate of 3.21 kg m −2 h −1 and salt rejection. • Offered a scalable and durable platform for sustainable clean water production. Solar steam generation is thermodynamically limited by parasitic heat loss to bulk water and the surroundings. Herein, we overcome this limitation by designing a coaxial, dual-cylinder evaporator that actively recovers convective waste heat to boost vapor yield. A scalable photothermal textile is sequentially fabricated via facile deposition of copper sulfide (CuS) nanoflowers onto cotton fabric, followed by in-situ vapor-phase polymerization of polypyrrole (CuS/PPy/CF). The resulting CuS/PPy heterostructure delivers broadband absorption (>94%) and rapid thermalization. This fabric is integrated onto two concentric copper mesh cylinders of different diameters, creating an annular air channel. Under illumination, the outer cylinder drives primary evaporation, while the inner cylinder harvests latent heat and warm vapor flux from the channel. This recuperative convective exchange elevates the inner surface temperature beyond the ambient wet-bulb temperature, enabling cold evaporation from the exterior while sustaining high-temperature steam release from the interior. The coaxial architecture achieves an evaporation rate of 3.21 kg m −2 h −1 under 1 sun, well above the theoretical planar limit, and maintains stable performance in high-salinity brine. This work introduces a facile, scalable textile-engineering approach and a convective heat-recycling geometry that redefines the efficiency ceiling for passive solar desalination. We report a 3D coaxial cylindrical CuS/PPy nanoflower fabric built with convective heat recycling for a high evaporation rate of 3.21 kg m −2 h −1 under 1 sun and salt rejection, ensuring sustainable desalination Download: Download high-res image (163KB) Download: Download full-size image
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 3
·122469
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IF 7.5
Pengyu Hu,Xinwen Xu,Yongchao Zhang,Zhiwei Wang,Yanzhu Guo
The π-π conjugation structure in lignin could endow its derived polyurethanes with photothermal conversion property to some extent, but is undesirable with those reported carbon or metal materials. Herein, lignin-based polyurethane films loaded with copper sulfide nanoparticles (CuS-OLPUs) were rationally designed by simultaneously utilizing lignin as a growth carrier for CuS nanoparticles and as a bio-based polyol substitute in polyurethane synthesis. Benefiting from the synergistic photothermal contributions of lignin and CuS, the CuS-OLPUs exhibited markedly enhanced light absorption across the ultraviolet and visible regions, and thus exhibited great application potential in the field of UV shielding. Under simulated sunlight irradiation at 0.5 W cm −2 , the surface temperature in the optimized CuS-OLPU rapidly increased and stabilized at 106 °C, demonstrating efficient photothermal conversion performance. Furthermore, a lignin-based phenolic foam with interconnected porosity and low thermal conductivity was fabricated and integrated with the optimized CuS-OLPU to construct a solar-driven evaporator. The water evaporation rate under the action of the evaporator increased by eight times in comparison with pure water without the evaporator, highlighting its effectiveness in solar-driven water evaporation. Overall, this work demonstrates a synergistic lignin-based material design strategy that bridges metal photothermal agents and polyurethane matrices, offering a promising route for enhancing the photothermal performance of polyurethanes and boosting lignin valorization.
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高影响因子
Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Tianshuang Song,Huilin Huang,Aiping Zhang
While copper-based Fenton-like systems can effectively degrade organic matter in the effluent from membrane bioreactor (MBR), the performance is hindered by sluggish Cu 2+ /Cu + cycling and oxidant inefficiency. In this study, a UV-synergized CuS-activated H 2 O 2 system was constructed, and the removal efficiency and synergistic mechanism for organic matter in MBR effluent were investigated. Under optimized conditions (UV=14 W, CuS=0.06 g/L, [H 2 O 2 ]=50 mM, pH=3.0, t=60 min), the UV/CuS/H 2 O 2 system achieved removal efficiencies of 62.49%, 89.81%, and 38.48% for UV 254 , color number (CN), and total organic carbon (TOC) respectively. This performance is attributed to the disruption of aromatic structures and a reduction in molecular weight, condensation degree, and humification degree. Reactive oxygen species characterization confirmed the presence of hydroxyl radicals ( • OH), singlet oxygen ( 1 O 2 ) and superoxide radical anions (O 2 •− ) in the system, with O 2 •− identified as the dominant reactive species driving the process. Through analysis of the material morphology, distribution of copper compounds, and changes in oxidation states, the reaction mechanism of the UV/CuS/H 2 O 2 system can be summarized as homogeneous and heterogeneous Fenton-like reactions coupled with CuS adsorption, all of which are jointly promoted by the photochemical effects of ultraviolet radiation. Additionally, benzoic acid removal remained above 96% over six cycles with minimal Cu 2+ leaching, confirming the reusability and environmental compatibility of CuS. This study provides a theoretical basis for using the UV/CuS/H 2 O 2 system to remove organic matter from landfill leachate.
研究领域:
环境工程
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高级氧化技术
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水和废水处理
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化学工程
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高影响因子
RARE METALS
·
2026
·Vol. 45
·期 7
·e70444
·
IF 12.1
Bingran Qi,Chang Zheng,Shifeng Jin,Kezhu Li
en This link goes to a English section zh This link goes to a Chinese section Deep skin infections and dense biofilm barriers caused by Propionibacterium acnes ( P. acnes ) remain significant challenges in recurrent acne vulgaris, exacerbated by the poor stratum corneum penetration of conventional therapies and rising antibiotic resistance. Herein, we report a microwave (MW)-responsive microneedle (MN) patch integrated with CuS/CuCo 2 O 4 heterojunction nanoparticles for targeted acne therapy. The MN array mechanically breaches the stratum corneum for precise localized delivery, whereas MW irradiation—leveraging its excellent deep-tissue penetration—induces efficient interfacial charge transfer within the heterojunction to generate abundant reactive oxygen species (ROS) in situ. This system achieves over 99% antibacterial efficiency against both Staphylococcus aureus ( S. aureus ) and P. acnes , effectively eradicating mature biofilms through synergistic physical and biochemical mechanisms. Furthermore, the localized release of Cu 2+ and Co 2+ ions demonstrates enzyme-like ROS-scavenging capabilities, which activate the NRF2 antioxidant and autophagy-lysosomal pathways while suppressing the NLRP3/ASC/Caspase-1 inflammasome. Transcriptomic analysis confirms the downregulation of the NF-κB signaling pathway, promoting a microenvironmental transition from a pro-inflammatory to a pro-repair state. Consequently, this transition facilitates fibroblast migration, angiogenesis, and subsequent tissue remodeling. Ultimately, this MW-driven interfacial engineering strategy overcomes the penetration limitations of traditional treatments, presenting a highly promising platform for deep-tissue infection management. 摘要 en This link goes to a English section zh This link goes to a Chinese section 由痤疮丙酸杆菌( Propionibacterium acnes , P. acnes )引起的深层皮肤感染及致密生物膜屏障仍然是复发性寻常痤疮治疗中的重大挑战,这一问题因传统疗法对角质层穿透性差及抗生素耐药性上升而更加严重。本文报道了一种微波(MW)响应型微针(MN)贴片,其整合了CuS/CuCo 2 O 4 异质结纳米颗粒,用于靶向痤疮治疗。微针阵列可机械性破坏角质层,实现精准局部递送,而微波照射利用其优异的深层组织穿透能力,在异质结界面诱导高效电荷转移,原位生成丰富的活性氧(ROS)。该系统对金黄色葡萄球菌( S. aureus )和 P. acnes 的杀菌效率均超过99%,通过物理与生化机制协同作用,有效清除成熟生物膜。此外,局部释放的Cu 2+ 和Co 2+ 离子表现出类酶的ROS清除能力,可激活NRF2抗氧化通路及自噬-溶酶体途径,同时抑制NLRP3/ASC/Caspase-1炎症小体。转录组分析显示NF-κB信号通路下调,促进微环境由促炎向促修复状态转变,从而有利于成纤维细胞迁移、血管生成及后续组织重塑。最终,这一微波驱动的界面工程策略克服了传统疗法的穿透限制,为深层组织感染管理提供了极具前景的平台。
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·
IF 19
Fangli Gao,Liang Zhu,Liting Jiang,Jie Zhang,Shenglu Ji,Weihua Gao,Guanglei Ma,Yi Chang,Xiaoming Ma,Yuming Guo
The efficient way to increase the therapeutic efficacy of nanomedicines is by encouraging the penetration and enhancing the retention of nanoparticles at the tumor site. However, it is a serious dilemma that small nanoparticles can penetrate deep into the tumor tissue but easily be cleared into the surrounding tissues. In order to solve this dilemma, a smart nanosystem is created to address this problem, ensuring both the effective penetration of tiny nanoparticles (NPs) and their appropriate retention at the tumor site. CuS NPs that is modified with peptides are prepared facilely, and can aggregate in situ through the intermolecular crosslinking reaction catalyzed by the transglutaminase (TGase) abundantly expressed at the tumor site, resulting in an outstanding photothermal effect for tumor therapy. Upon NIR irradiation, the photothermal effect of CuS-K and CuS-Q induced the disintegration of liposomes and prompted the release of CuS-K, CuS-Q, and indocyanine green (ICG). Simultaneously, CuS-K and CuS-Q aggregated under the catalysis of TGase after being internalized by tumor cells to enhance photothermal therapy. The current study provides valuable inspiration to design nanomedicines with prolonged circulation time in the blood system, better penetration, and retention at the tumor site, and multimodal tumor therapy to achieve the desired therapeutic efficacy.
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高影响因子
CHINESE CHEMICAL LETTERS
·
2023
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IF 9.1
Yun Wei,Lei Zhou,Wenbin Hu,Liming Yang,Guang Yang,Chaoqiang Wang,Hui Shi,Fei Han,Yufa Feng,Xuan Ding,Penghui Shao,Xubiao Luo
The efficient and environmentally friendly recycling technology of waste residue that including abundant heavy metal produced during the recovery of lithium batteries has become a research hotspot. Herein, a novelty process of acid leaching-selective electrodeposition-deep impurity removal-regeneration was proposed to recovery of the CuS slag, which has been efficient transferred to high purity cathode copper and commercially available ternary precursors. Copper cathode with a purity of 99.67% was prepared under electrochemical reaction conditions at −0.55 V for 2 h. A novel impurity remover-Mn powder, which was used to remove the residual impurities and as a feedstock for the ternary precursor. Finally, NCM523 was regenerated by co-precipitation. The process is superior to the traditional process in economy, energy consumption, CO 2 emissions, product purity and process duration. This study provides a new approach for solid waste recovery and precious metal enrichment.
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高影响因子
Biomaterials Science
·
2023
·Vol. 11
·期 10
·3589-3602
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IF 6.6
Bo Huang,Wei Guan,Chaofeng Wang,Shuilin Wu,Zhenduo Cui,Yufeng Zheng,Zhaoyang Li,Shengli Zhu,Hui Jiang,Paul K. Chu,Xiangmei Liu
Charge transfer and separation play a critical role in the photocatalytic efficiency of photoresponsive materials and their subsequent applications. Herein, for the first time, we constructed a homo-heterostructured S–Cu–FC/CuS modified carboxymethyl cellulose (CMC) hydrogel doped with graphene oxide (GO) (S–Cu–FC/CuS/GO@CMC) through an in situ ionic complexation reaction, which exhibited enhanced photocatalytic performance under 808 nm near-infrared (NIR) light irradiation. On the one hand, photo-excited charges can rapidly transfer across the homo-heterojunction interface with copper atoms in S–Cu–FC/CuS as both donors and acceptors. On the other hand, the interface between GO and S–Cu–FC/CuS also favors the fast transfer of photogenerated charges. Hence, with the assistance of a photothermal effect, the enhanced photocatalytic performance of S–Cu–FC/CuS/GO endowed the hydrogel with robust sterilization ability for killing 99.5% S. aureus and 100.0% E. coli under 10 min NIR light irradiation. An in vivo test disclosed that this hydrogel could also accelerate the healing of bacteria-infected wounds.
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高影响因子
APPLIED CATALYSIS B-ENVIRONMENTAL
·
2023
·
IF 22.1
Ao Zhang,Zhongqing Jiang,Shaoda Zhang,Penghua Lan,Naihua Miao,Weiheng Chen,Ning Huang,Xiaoning Tian,Yangjie Liu,Zhongyu Cai
We report the development of non-noble transition metal sulfide catalysts Mn-CuS-x for high-efficiency and selective H 2 O 2 production. In this study, we synthesized Mn-CuS-x with coral-shaped hierarchical porous structure through one-pot hydrothermal reaction. The Mn-CuS-x possesses large specific surface area with plenty of crystalline defects via heteroatom doping of Mn. The Mn-CuS-x kinetically favored 2e − pathway over 4e − pathway, resulting in high selectivity (>92%) to H 2 O 2 production and high H 2 O 2 concentration (∼24.5 mM at 0.6 V vs. RHE) within 3 h for the optimized Mn-CuS-2 catalysts (synthesized with a molar ratio of 1:3:8 (MnCl 2 ·4 H 2 O: CuCl 2 ·2 H 2 O: C 2 H 5 NS)). The Mn-CuS-2 showed excellent stability, indicating that the Mn-CuS electrocatalysts can simultaneously achieve both high stability and enhanced H 2 O 2 production. Our first-principles calculations further confirmed that the heteroatom Mn doping to CuS thermodynamically makes the 2e – -ORR pathway more favorable. This study provides a green, low-cost, and efficient route to produce H 2 O 2 , which is very promising for generating chemicals and liquid fuels.
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