Journal of Materials Chemistry C
·
2025
·
IF 5.1
Qian Zhou,Hao Feng,Lei Fang,Wei Bao,Kuanjun Fang
The development of wearable electronics, energy storage, and smart sensing has significantly increased the demand for highly conductive circuits on textiles. Silver (Ag) is a preferred material due to its excellent electrical conductivity, antibacterial properties, and biocompatibility. However, the hydrophobic nature and low surface energy of polyethylene terephthalate (PET) fabrics pose challenges for the adhesion of silver particles, limiting the mechanical durability and washability of conductive layers. This study proposes a novel strategy combining the synergetic pretreatment of PET fabrics using reducing agents (ascorbic acid and glucose) and hydroxypropyl methylcellulose (HPMC) to enhance the deposition of silver layers. The reducing agents facilitate the conversion of silver ions to metallic silver, while HPMC forms a uniform film on the fabric surface, providing anchoring points for silver particles through hydrogen bonding. The resulting silver layers exhibit high conductivity, uniformity, and durability, as confirmed by SEM, XRD, and XPS analyses. The treated fabrics demonstrate low electrical resistance and excellent abrasion resistance after multiple washes and rubbing. This method offers a simple, scalable, and cost-effective approach for constructing conductive textiles, with potential applications in wearable electronics and smart sensing.
研究领域:
材料科学
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纺织工程
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电子工程
✓ 已验证
产品关联
DOI
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Wencheng Hou,Wentao Guo,Xiangjun Liu,Zhuoyang Li,Hongxia Li
Desulfurized gypsum, a byproduct of industrial processes, can be efficiently recycled through solid-phase reaction to synthesize CaFe 2 O 4 . This study investigates the reaction mechanism of CaFe 2 O 4 formation from CaSO 4 , Fe 2 O 3 , and semi-coke powder using thermodynamic modeling with Factsage 8.3 software. The phase composition and microstructure of the resulting products under varying semi-coke contents and sintering temperatures were characterized using X-ray diffraction (XRD) and scanning electron microscopy coupled with energy-dispersive spectroscopy (SEM-EDS). Total Fe and S contents were quantified using inductively coupled plasma optical emission spectroscopy (ICP-OES) and a C/S Analyzer. The results indicate that increasing the semi-coke content from 11.11 wt% to 20.00 wt% leads to an initial rise and subsequent decline in CaFe 2 O 4 yield, while S content exhibits an opposite trend. Similarly, elevating the sintering temperature from 1050°C to 1150°C results in increased CaFe 2 O 4 formation up to 1125°C, beyond which a decrease is observed, alongside a continuous reduction in S content. Optimal synthesis conditions were identified at 15.79 wt% semi-coke and 1125°C, achieving a desulfurization rate of 95.40 % and confirming effective formation of CaFe 2 O 4 . Compared to conventional reducing agents such as coke and C powders, the use of semi-coke enabled a reduction in the required sintering temperature from 1150°C to 1125°C. These results provide a valuable reference for the low-temperature, high-efficiency recycling of desulfurized gypsum into functional ferrite materials.
研究领域:
材料科学
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环境工程
✓ 已验证
产品关联
DOI
高影响因子
WASTE MANAGEMENT
·
2018
·
IF 4.723
Xiangping Chen,Chunxiu Guo,Hongrui Ma,Jiazhu Li,Tao Zhou,Ling Cao,Duozhi Kang
It is significant to recover metal values from spent lithium ion batteries (LIBs) for the alleviation or prevention of potential risks towards environmental pollution and public health, as well as for the conservation of valuable metals. Herein a hydrometallurgical process was proposed to explore the possibility for the leaching of different metals from waste cathodic materials (LiCoO 2 ) of spent LIBs using organics as reductant in sulfuric acid medium. According to the leaching results, about 98% Co and 96% Li can be leached under the optimal experimental conditions of reaction temperature - 95 °C, reaction time - 120 min, reductive agent dosage - 0.4 g/g, slurry density - 25 g/L, concentration of sulfuric acid-3 mol/L in H 2 SO 4 + glucose leaching system. Similar results (96% Co and 100% Li) can be obtained in H 2 SO 4 + sucrose leaching system under optimized leaching conditions. Despite a complete leaching of Li (∼100%), only 54% Co can be dissolved in the H 2 SO 4 + cellulose leaching system under optimized leaching conditions. Finally, different characterization methods, including UV–Vis, FT-IR, SEM and XRD, were employed for the tentative exploration of reductive leaching reactions using organic as reductant in sulfuric acid medium. All the leaching and characterization results confirm that both glucose and sucrose are effective reductants during leaching, while cellulose should be further degraded to organics with low molecular weights to achieve a satisfactory leaching performance.
研究领域:
环境科学
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冶金学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
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IF 13.3
Zhiyu Kuang,Danping Wang,Qing Wang,Shengyao Xu,Hezhen Xu,Shiyi Zuo,Yaqiao Li,Hao Zhang,Cuiyun Liu,Xiaohui Pu,Jin Sun,Yuezhou Zhang,Zhonggui He,Bingjun Sun
The elevated redox state has become a distinctive characteristic in the tumor environment for designing novel nanomedicines. However, the excessive oxidation stress brought out several plights, such as insufficient reduction-responsive drug release, dense extracellular matrix, and immunosuppressive tumor microenvironment. Here, we explored a potential strategy of replenishing exogenous reductants to boost the efficacy of nanomedicines. Disulfide bond-bridged cabazitaxel prodrug nanoassemblies were developed with high drug loading and reduction responsivity. As relying on endogenous reductants only was not sufficient enough to trigger the activation of prodrug, exogenous reductants were further supplemented to accelerate the activation efficiency. In addition, we found exogenous reductants would increase the tumor penetration of prodrug nanoassemblies, reverse the immunosuppressive system caused by high oxidation stress, and mediate a remarkable antitumor efficacy combined with Anti-PD1. This work elucidated the functions of reductants in cancer treatment, and highlighted their prominent role in combination with nanomedicines.
研究领域:
药学
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纳米技术
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癌症研究
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药物递送系统
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CRYSTAL GROWTH
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2025
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IF 2
Van-Thao Ta,Duy-Khanh Nguyen,Xuan-Bach Nguyen,Phuong-Nam Nguyen,Sinh-Hung Nguyen,Xuan-Dung Mai
The development of a simple, cost-effective, and green method to synthesize CdTe quantum dots (QDs), which are a key nanomaterial in sensing, bioimaging, and immunofluorescence analysis is highly desirable. In this study, we used ammonia in lieu of common hydride reductant to synthesize CdTe QDs by simple refluxing aqueous solutions of cadmium salt, sodium tellurite, and 3-mercaptopropionic acid (MPA). The obtained CdTe QDs were characterized by absorption and photoluminescent spectroscopies, X-ray diffraction (XRD), and transmission electron microscope (TEM). The absorption window and the emission color of QDs were facile controlled over the green–red range by varying the refluxing time. As the QD size increased the crystal structure transformed from CdTe to a CdTeS alloyed form. The results demonstrated herein suggest a cost-effective method for production of CdTe QDs.
研究领域:
材料科学
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2021
·
IF 5.039
Haipei Zhang,Bo Li,Yonggang Wei,Hua Wang
Settling time, system temperature and reductant amount play an important role in the recovery of matte from copper slag. This study investigated the settling behavior of matte particles in copper slag and the effects of the settling time, system temperature, and reductant amount on the macrostructure of slag, microstructure of matte particles, and copper loss. The results showed that the settling behavior of matte particles in slag at the experimental temperature was a process of aggregation and growth. With an increase in settling time and temperature, as well as the addition of an appropriate amount of anthracite, the foaming slag layer of the slowly cooled slag gradually disappeared, while the recovery of matte increased. However, when the amount of anthracite was too high, Fe–Cu alloy formed at the experimental temperature, which resulted in worsened fluidity of the matte in the molten slag and copper loss increased. At the experimental temperature, the settling environment of matte particles in the liquid phase layer was superior to that of the foaming slag layer. The novel idea of using rubber seed oil instead of a traditional fossil reductant to clean the copper slag was put forward. At the temperature of 1250 °C, 4 mL of rubber seed oil was injected, resulting in a settling time of ≥90 min, after which the copper content in the upper part of the slowly cooled slag was less than 0.57 wt.%, reaching the acceptable level of discardable slag in industry.
研究领域:
冶金学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Minerals Metallurgy and Materials
·
2023
·Vol. 30
·期 9
·1705-1715
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IF 4.8
Zhou Guotao,Wang Yilin,Qi Tiangui,Zhou Qiusheng,Liu Guihua,Peng Zhihong,Li Xiaobin
Goethitic bauxite is a widely used raw material in the alumina industry. It is an essential prerequisite to clarify the effect of Ti- and Si-containing minerals on goethite transformation in the Bayer digestion process, which could efficiently utilize the Fe- and Al-containing minerals present in goethitic bauxite. In this work, the interactions between anatase or kaolinite with goethite during various Bayer digestion processes were investigated using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). The results showed that anatase and kaolinite hindered the transformation of goethite. Anatase exerted more significant effects than kaolinite due to the dense sodium titanate layer on the goethite surface after reacting with the sodium aluminate solution. Adding the reductant hydrazine hydrate could eliminate the retarding effect by inducing the transformation of goethite into magnetite. In this process, titanium was embedded into the magnetite lattice to form Ti-containing magnetite. Furthermore, the weakening of the interaction between magnetite and sodium aluminosilicate hydrate reduced the influence of kaolinite. As a validation of the above results, the reductive Bayer method resulted in the transformation of goethite into goethitic bauxite with 98.87% relative alumina digestion rate. The obtained red mud with 72.99wt% Fe 2 O 3 could be further utilized in the steel industry. This work provides a clear understanding of the transformative effects of Ti- and Si-containing minerals on iron mineral transformation and aids the comprehensive use of iron and aluminum in goethitic bauxite subjected to the reductive Bayer method.
研究领域:
矿物学
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冶金工程
✓ 已验证
产品关联
DOI
高影响因子
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
·
2015
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IF 1.178
Chang-xin LI,Hong ZHONG,Shuai WANG,Jian-rong XUE,Fang-fang WU,Zhen-yu ZHANG
The extraction of manganese from low-grade manganese oxide ores using CaS derived from CaSO 4 as reductant was investigated. The effects of mass ratio of CaS to ore, reduction temperature, reduction time, liquid to solid ratio (L/S ratio), stirring speed, leaching temperature, leaching time and H 2 SO 4 concentration on the leaching rates of Mn and Fe during the reduction–acid leaching process were discussed. The leaching rates of 96.47% for Mn and 19.24% for Fe were obtained under the optimized conditions of mass ratio of CaS to manganese oxide ore 1:6.7, L/S ratio 5:1, stirring speed 300 r/min, reduction temperature of 95 °C for 2.0 h in the reduction process and leaching stirring speed of 200 r/min, H 2 SO 4 concentration of 1.5 mol/L, leaching temperature of 80 °C for 5 min in the leaching process. In addition, this process can be employed in the recovery of manganese from various manganese oxide ores, and Mn leaching rate above 95% is obtained.
研究领域:
冶金工程
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化学工程
✓ 已验证
产品关联
DOI
高影响因子
PROCESS BIOCHEMISTRY
·
2015
·
IF 2.516
Jiefeng Xiao,Zhibao Huo,Dezhang Ren,Song Zhang,Jiang Luo,Guodong Yao,Fangming Jin
A novel and efficient process for the production of 1,2-propylene glycol with high productivity and high selectivity from biomass-derived lactic acid over CuO was investigated. As a result, CuO exhibited a high catalytic activity while Zn acted as a reductant for the conversion of lactic acid to 1,2-propylene glycol. Among the various reaction parameters, such as catalysts, reductants, temperature, water filling and reaction time we investigated, a 93% yield of 1,2-propylene glycol in the presence of 0.83 mmol lactic acid, 5 mmol CuO and 30 mmol Zn with 35% water filling at 250 °C for 2 h was achieved. In addition, a carbon balance at optimum reaction conditions by TOC indicated that approximately 99% lactic acid was converted into liquid products in the transformation. In situ formed hydrogen by the oxidation of Zn in water is effective for the transformation compared to added gases hydrogen. The proposed mechanism for the conversion of lactic acid to 1,2-propylene glycol over CuO is also discussed.
研究领域:
生物化学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
·
2022
·
IF 3.752
Guo-tao ZHOU,Yi-lin WANG,Tian-gui QI,Qiu-sheng ZHOU,Gui-hua LIU,Zhi-hong PENG,Xiao-bin LI
The conversion mechanism of Al-goethite under the action of different additives (lime or reductant for typical or reductive Bayer digestion) was investigated by thermodynamic calculation, XRD, and SEM−EDS. The results show that the formation of Fe-substituted hydrocalumite is crucial to converting Al-goethite to hematite during Bayer digestion by adding lime. However, the conversion proceeds more easily under the action of reductant due to the rapid formation of magnetite. Additionally, Bayer liquor composition significantly affects the product composition and also the conversion rate of Al-goethite. Compared to typical Bayer digestion with Al-goethite containing gibbsitic bauxite as raw material, the red mud yield of reductive Bayer digestion decreases from 39.02% to 31.19%, and the grade of TFe in red mud increases from 41.66% to 53.80%.
研究领域:
矿物加工工程
·
材料科学与工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2018
·
IF 2.732
Shiyao Ma,Tong Yue,Xincai Xiao,Han Cheng,Dan Zhao
The concept of synergistic effect has been widely applied into various scientific research areas, ranging from life science to material science, nevertheless it has been rarely adopted in the synthesis of quantum dots (QDs). This proof-of-concept study was the preparation of ultra-bright silicon QDs with a relative quantum yield of up to 84.92% based on the synergistic effect of two reductants, whilst silane coupling agent as the silicon source. Compared with the conventional one-reductant strategy, our as-prepared silicon QDs exhibit greatly enhanced quantum yields with even tunable emission wavelength , meanwhile, inheriting other merits including good pH, salt tolerance, small particle size and amino-rich surface, which is conducive to biological applications. The highly efficient and stable photoluminescence of silicon QDs could definitely facilitate their prospective applications as optical materials.
研究领域:
材料科学
·
光学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2020
·
IF 2.779
Guanghui Liu,Ju Xu,Ruixing Li
One-dimensional (1D) Cs 0.3 WO 3 nanofibers were controllably synthesized via a simple hydrothermal method employing different reducing agents such as ethanol, isopropanol, terpineol and 1-octadecene. The effects on the crystalline structure, size and morphology of the nanoparticles were thoroughly investigated by XRD and SEM analyses. XRD analysis shows that the different reducing agents have no significant effect on the crystal phase of the products. SEM results indicate that the 1D Cs 0.3 WO 3 nanofibers synthesized by using 1-octadecene as a reducing agent possess uniform fiber-like morphology with smooth surface and the largest aspect ratio up to 132.3, average diameter and length of 65 nm and 8.6 μm, respectively. Moreover, all the samples exhibit a broad absorption spectrum from 780 nm to 20000 nm, and their optical properties are closely related to the aspect ratio of the samples. And the sample-1-OA with the largest aspect ratio shows excellent instantaneous photo-thermal conversion property resulting in an obvious temperature increases from 20 °C to 72.3 °C when it was irradiated by 50 W halogen lamp for 10 s.
研究领域:
材料科学
·
光学
✓ 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）