JOURNAL OF PLANT GROWTH REGULATION
·
2022
·Vol. 42
·期 3
·1937-1952
·
IF 4.64
Cheng Siren,Fang Zhenming,Cheng Xianchao,Wu Yizhu,Mo Lifang,Yan Chongyang,Zhou Langshan,Ren Yong
Despite copper (Cu) being an essential nutrient for the growth and development of all living organisms, the yield and tolerance mechanisms of fragrant rice under Cu-induced stress have not been reported. In this study, we tested two fragrant rice cultivars (Meixiangzhan and Yuxiangyouzhan) at the heading stage, with four Cu doses (CuSO 4 ·5H 2 O), i.e., 0 (CK), 20 (T1), 40 (T2), and 60 mM (T3) in a pot experiment. Our results showed that T2 treatment improved the yield of Meixiangzhan and Yuxiangyouzhan by 8.33% and 18.51%, respectively, by improving grains per panicle and the seed-setting rate. Moreover, Yuxiangyouzhan had the highest yield in T2 treatment, indicating that it had better Cu-tolerance than Meixiangzhan. Both cultivars had a similar response to Cu dose treatments. While T1 and T2 improved leaf pigment contents, antioxidant enzyme activities, and soluble protein content in plant tissues, T3 treatment instead promoted higher malondialdehyde (MDA) content accumulation and regulated antioxidant attributes. Overall, low-level Cu dosing significantly improved the fragrant rice yield via modulation of the antioxidant attributes. Therefore, this study provides supporting evidence for utilizing Cu reagent or assessing Cu toxicity in fragrant rice.
研究领域:
植物科学
·
农学
·
环境胁迫
✓ 已验证
产品关联
DOI
高影响因子
CRYSTAL RESEARCH AND TECHNOLOGY
·
2025
·
IF 1.9
Yuhao Cheng,Xiongfei Xie,Shuai Li,Qingqing Qiu,Yao Liu
Crystal morphology in supersaturated copper sulfate (CuSO 4 ) solutions in the presence of acidic polymers is investigated using the non-photochemical laser-induced nucleation (NPLIN) technique. The solubility of copper sulfate in different solvents is measured using the continuous addition method, which is detailed in the Supporting Information. The optimum range of laser power is selected based on a suitable nucleation probability and desirable crystalline morphology. Two different forms of copper sulfate crystals are obtained by a nanosecond pulsed laser with the wavelength of 532 nm. The experimental results show that the addition of impurities increases the probability of nucleation of copper sulfate crystals during nanosecond laser pulse irradiation, which is consistent with the nanoparticle heating mechanism for NPLIN; the addition of acidic polymer can control crystal growth rate of each crystal surface. All CuSO 4 crystals obtained from the technique of NPLIN are revealed as copper sulfate pentahydrate (CuSO 4 ·5H 2 O) through powder X-ray diffraction analysis. After the sample solution is added with polyacrylic acid, the crystalline morphology changes from polyhedral 3D morphology to long rod morphology. Based on this, different kinds of impurities and acidic polymers are applied in order to achieve a controllable approach on nucleation probability and crystalline morphology of CuSO 4 ·5H 2 O crystals. The effects of impurities and acidic polymers on crystals are analyzed to study the underlying mechanism of NPLIN and morphological differences.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR STRUCTURE
·
2025
·
IF 4.7
De Li,Shuai Zuo,Zhoutong Liu,Kang Xiong,Lihan Ren,Xiuxia Zhang
To meet the challenge of antibiotic contamination in the aquatic environment, a novel copper alginate-graphene oxide (CA-GO) composite aerogel was developed in this study for the efficient removal of tetracycline (TC). The CA-GO aerogel was prepared by a two-step sol-gel method and the three-dimensional porous network structure was constructed with the help of freeze-drying technique. The microstructure, chemical composition and surface properties of the materials were systematically characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), mercury intrusion porosimetry (MIP), X-ray photoelectron spectroscopy (XPS) and energy dispersive X-ray spectroscopy (EDXS). The experimental results showed that CA-GO aerogel possessed high porosity (91.76%) and rich active sites. Compared with the single copper alginate aerogel, CA-GO showed significantly enhanced tetracycline adsorption performance (increased by 20%) and specific surface area (increased by 158.25%). The adsorption amount reached 238.15 mg·g −1 at a temperature of 45 ℃ and an initial concentration of TC of 70 mg·L −1 . In addition, the adsorption behavior of tetracycline on this aerogel conformed to the quasi-primary kinetic and Langmuir isothermal models, which indicated that the adsorption process was mainly chemisorption with monolayer adsorption. Furthermore, the introduction of Cu²⁺ not only enhances the mechanical strength of the aerogel, but also significantly improves the adsorption of tetracycline molecules through electrostatic interactions, ligand chelation, and π-π conjugation. What's more, the CA-GO aerogel exhibited a low Cu 2+ dissolution rate (14d, Cu 2+ concentration of 0.078 mg·L −1 ) and better regeneration performance (5 cycles, more than 50% of initial adsorption capacity).
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
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2025
·
IF 5.4
Weilong Rong,Yiqing Zeng,Shule Zhang,Qin Zhong
The technology of simultaneous ammonia selective catalytic reduction (NH 3 -SCR) denitration and carbon monoxide (CO) oxidation is a proposed approach for synergistic purification of nitrogen oxides (NO x ) and CO from flue gas. However, the lack of highly efficient catalysts has hindered the widespread adoption and application of this technology. Herein, a series of CuSO 4 /TiO 2 (denoted CuS/Ti-X, X means calcination temperature at 400, 500, and 600 °C) catalysts was prepared to investigate their performance for simultaneous NH 3 -SCR denitration and CO oxidation. The results show that dispersing CuSO 4 on TiO 2 carrier induces the formation of surface Cu-O defect structure and reduces the stability of the Cu-O-S structure, which gives CuS/Ti-X catalysts a good redox property. Hence, the CuS/Ti-500 catalyst exhibits good catalytic activity in simultaneous removal of NO and CO, even in the presence of SO 2 . Reaction process investigation demonstrated that the presence of NO and NH 3 inhibits the adsorption of CO and consumes active oxygen species, thereby suppressing the CO oxidation reaction. In contrast, CO can promote the activation of NH 3 via activating the redox sites, which is conducive to the NH 3 -SCR reaction via the E-R mechanism. This study provides new insights into the strategic design of dual-functional sulfur-resistant catalysts for flue gas purification.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2018
·
IF 4.841
Yongheng Xiong,Yiqing Zeng,Wei Cai,Shule Zhang,Jie Ding,Qin Zhong
The effects of various factors on the NO removal activity in the (NH 4 ) 2 SO 3 solution were investigated to explore more details and characteristics of the related reactions using full infrared sensor flue gas analyzer (FISFGA). It was found that the conversion yield of NO (9.0%–29.0%) was obviously improved with the increase of gas–liquid contact area, NO residence time and (NH 4 ) 2 SO 3 concentration as well as the adding of CuSO 4 . However, it was mainly limited by gas–liquid mass transfer rate and slightly inhibited by the gas velocity. Moreover, the FISFGA analysis revealed that two nitric oxide (NO) conversion route with different reduction product of N 2 O and N 2 existed simultaneously upon the existence form of SO 3 2− . It was confirmed by the calculations and the experiments of pH factor that the NO reduction steps were based on the following equation: (1) NO + HSO 3 − ⇋ N 2 O + SO 4 2− + H + ; (2) NO + SO 3 2− ⇋ N 2 + SO 4 2− . In this system, Eq. (1) with N 2 O product was the major pathway, but the ratio of Eqs. (2) to (1) was intensified in the presence of CuSO 4 . It is believed that the suitable additives could promote the NO reduction to N 2 furtherly.
研究领域:
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2014
·
IF 5.039
Haiyan Zhang,Xuejun Liu,Meizhen Lu,Xinyue Hu,Leigang Lu,Xiaoning Tian,Jianbing Ji
In this work, the role of Brønsted acid for furfural production in biomass pyrolysis on supported sulfates catalysts was investigated. The introduction of Brønsted acid was shown to improve the degradation of polysaccharides to intermediates for furfural, which did not work well when only Lewis acids were used in the process. Experimental results showed that CuSO 4 /HZSM-5 catalyst exhibited the best performance for furfural (28% yield), which was much higher than individual HZSM-5 (5%) and CuSO 4 (6%). The optimum reaction conditions called for the mass ratio of CuSO 4 /HZSM-5 to be 0.4 and the catalyst/biomass mass ratio to be 0.5. The recycled catalyst exhibited low productivity (9%). Analysis of the catalysts by Py-IR revealed that the CuSO 4 /HZSM-5 owned a stronger Brønsted acid intensity than HZSM-5 or the recycled CuSO 4 /HZSM-5. Therefore, the existence of Brønsted acid is necessary to achieve a more productive degradation of biomass for furfural.
研究领域:
化学工程
·
催化
·
可再生能源
✓ 已验证
DOI
PubMed
高影响因子
Minerals
·
2025
·Vol. 15
·期 2
·162
·
IF 2.2
Jiaxiu Chen,Lv Zhao,Haiyang He,Jinpeng Cai,Liuyang Dong,Dianwen Liu
The flotation separation of sphalerite (ZnS) and pyrite (FeS2) in a copper sulfate (CuSO4)–butyl xanthate (BX) system is challenging because the indiscriminate activation of Cu2+gives them similar floatability. To this end, the suitability of a novel depressant, luteolin (LUT), on the flotation separation of ZnS from FeS2in this system was studied. Micro-flotation tests and contact angle measurement results showed that ZnS could be selectively separated from FeS2using LUT as a depressant. At pH 7.0 ± 0.1, a flotation concentrate with a recovery of 93.90% ZnS and 2.84% FeS2was obtained after adding LUT in artificial mixed minerals tests. Adsorption differences and characteristics results showed that the affinity of LUT to FeS2was considerably higher than that of ZnS, which effectively hindered the subsequent adsorption of xanthate on FeS2but had a relatively weak effect on ZnS. Thus, a large floatability difference between ZnS and FeS2was achieved. Further analyses revealed that the adsorption behavior of LUT on FeS2occurred mainly through the interaction between 4–5 sites and Fe(II) at the solid/liquid interface. These findings shed light for the first time on the suitability of LUT for the successful flotation separation of ZnS from FeS2, which has important guiding significance for the development of a lime-free depressant of FeS2.
研究领域:
矿物加工
·
浮选化学
·
表面化学
·
提取冶金
✓ 已验证
产品关联
DOI
高影响因子
Bioactive Materials
·
2021
·
IF 14.593
Zhongqiang Zhu,Qiang Gao,Ziyue Long,Qiuyi Huo,Yifan Ge,Ntakirutimana Vianney,Nishimwe Anodine Daliko,Yongchun Meng,Jia Qu,Hao Chen,Bailiang Wang
Implanted biomaterials such as medical catheters are prone to be adhered by proteins, platelets and bacteria due to their surface hydrophobicity characteristics, and then induce related infections and thrombosis. Hence, the development of a versatile strategy to endow surfaces with antibacterial and antifouling functions is particularly significant for blood-contacting materials. In this work, CuSO 4 /H 2 O 2 was used to trigger polydopamine (PDA) and poly-(sulfobetaine methacrylate) (PSBMA) co-deposition process to endow polyurethane (PU) antibacterial and antifouling surface (PU/PDA(Cu)/PSBMA). The zwitterions contained in the PU/PDA(Cu)/PSBMA coating can significantly improve surface wettability to reduce protein adsorption, thereby improving its blood compatibility. In addition, the copper ions released from the metal-phenolic networks (MPNs) imparted them more than 90% antibacterial activity against E. coli and S. aureus . Notably, PU/PDA(Cu)/PSBMA also exhibits excellent performance in vivo mouse catheter-related infections models. Thus, the PU/PDA(Cu)/PSBMA has great application potential for developing multifunctional surface coatings for blood-contacting materials so as to improve antibacterial and anticoagulant properties.
研究领域:
材料科学
·
生物材料
·
生物医学工程
·
表面化学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2025
·
IF 11.3
Xiayida Mamatimin,Wei Song,Mihebai Yilimulati,Tiandou Zhang,Nuzahat Habibul
CuSO 4 is frequently employed as a control measure for the emergency treatment of cyanobacterial harmful algal blooms. Concurrently, nano-plastics (NPs) have emerged as pervasive pollutants exacerbating the threat of eutrophication to aquatic ecosystem. However, there is little known regarding the influence of NPs on the efficacy of copper sulfate (CuSO 4 ) in controlling cyanobacterial harmful algal blooms (cyanoHABs). Here, we demonstrate that the co-existence of polystyrene nanoplastics (PS NPs) exacerbates the negative effects of CuSO 4 to photosynthetic activity of Microcystis aeruginosa . This is caused via the differences in disrupting light energy absorption, inactivation of the reaction center, as well as disruptions in electron transport and metabolic pathways, which collectively induce oxidative stress and damage cell membrane. Treatment with either NPs or CuSO 4 alone results in the downregulation of carbon-fixation, the tricarboxylic acid cycle, and pyruvate metabolism. Co-existence of NPs significantly influenced ABC transporters, carbon fixation, and the two-component system in M . aeruginosa . Notably, while single CuSO₄ treatment increased microcystin- leucine arginine (MC-LR) levels by 243.3 % relative to controls, combining CuSO₄ with NPs (PS, PS-NH₂, PS-COOH) significantly reduced MC-LR concentrations by 73.5 %, 90.2 %, and 70.7 %, respectively (p < 0.05). This study demonstrated that NPs exacerbated the oxidative stress induced by CuSO 4 on M . aeruginosa cell, while concurrently reducing MCs release. Furthermore, the underlying molecular mechanisms were systematically investigated. These findings provided novel insights into the crucial importance of considering NPs impact prior to the application of CuSO 4 for the management of (cyanoHABs).
研究领域:
环境科学
·
水生生物学
·
毒理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2025
·
IF 9
Henan Peng,Fengqin Hong,Pan Chen,Chunhai Chen,Daming Wang,Hongwei Zhou
In this study, a novel organic solvent-resistant nanofiltration membrane was prepared on a polyimide ultrafiltration base membrane using a copper sulfate (CuSO 4 )/hydrogen peroxide (H 2 O 2 ) oxidation triggered polydopamine (PDA)/polyethyleneimine (PEI) deposition interlayer. The PDA/PEI interlayer exhibits strong adhesion with base membrane, effectively connecting the ultrafiltration base membrane to the polyamide active layer, thus enhancing the solvent resistance of the nanofiltration membrane. The CuSO 4 /H 2 O 2 catalyst significantly reduces the deposition time of PDA/PEI on polyimide base membrane. Additionally, copper (II) ions (Cu 2+ ) can form complexes with the amino groups (NH 2 ) of the aqueous phase monomer m-phenylenediamine (MPD), thereby slowing the diffusion rate of MPD into the organic phase. The interlayer contains a significant number of hydroxyl and amino groups, which can engage in hydrogen bonding interactions with MPD, thereby further regulating the reaction rate. The resulting nanofiltration membranes exhibit excellent hydrophilicity, as demonstrated by their minimal water contact angle, and are capable of positively influencing the permeance of polar solvents. Notably, the nanofiltration membrane prepared with a deposition time of 15 min and a CuSO 4 concentration of 45 mmol/L exhibited optimal performance, achieving a methanol permeance of 16.20 L m -2 h −1 bar −1 and Rhodamine B dye rejection rate of 96.9 %. The permeance of different solvents was determined to rely on the inherent characteristics of those solvents. Furthermore, the membrane maintained good separation performance after being immersed in N, N-dimethylformamide at 80 °C for 6 days. This method offers a novel perspective for the development of nanofiltration membranes that are resistant to organic solvents.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS & DESIGN
·
2016
·
IF 3.997
Tianlin Zhang,Xiadan Yue,Keren Zhang,Jinghao Li,Caiyian Zhu,Lei Zhang,Wei Chen
A polymerizable complex of copper(II) ion with unsaturated quaternary ammonium cation-modified salicylaldoxime ligand was prepared and used to synthesize a novel copper(II) ion imprinted polymers (Cu(II)-IIPs). Elemental analysis (EA), Fourier transform infrared spectroscopy (FTIR), and NMR spectroscopy confirmed the structures of the polymerizable complex and Cu(II)-IIPs. Thermogravimetric analysis (TGA), Brunauer–Emmett–Teller surface area analysis (BET), and scanning electron microscopy (SEM) characterized physical properties and morphologies of synthesized metal complex and corresponding polymers. The effect of pH, contact time, and initial Cu 2 + and SO 4 2 − concentration on the simultaneous adsorption of Cu 2 + and SO 4 2 − ions of Cu(II)-IIPs were investigated. Cu(II)-IIPs showed high hydrophilicity and simultaneously rapid adsorption of Cu 2 + and SO 4 2 − from solution. Moreover, Cu(II)-IIPs displayed highest adsorption capacity in the pH range of 5.0–6.5, the separation factor ( β ) between Cu 2 + with respect to Fe 3 + was 1866, the equilibrium adsorption capacities for Cu 2 + and SO 4 2 − were almost the same and close to 0.13 mmol g − 1 at 25 °C. Stripping experiments revealed that 1.5 mol L − 1 H 2 SO 4 was an effective eluent for desorbing copper (II) ions from Cu(II)-IIPs. In additional, Cu(II)-IIPs exhibited good recyclability and reusability for 5 cycles without deterioration of its selective ion-absorbing capacity.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
WATER RESEARCH
·
2024
·
IF 11.4
Yurong Wu,Guangliang Liu,Xiaoquan Liu,Yuxiang Mao,Yingying Guo,Yanwei Liu,Liuchao Zhu,Yongguang Yin,Yong Cai,Guibin Jiang
Ethylmercury (EtHg), similar to methylmercury (MeHg), is highly neurotoxic and bioaccumulative. Although recent studies suggested its occurrence in natural soils and sediments, the common propylation derivatization for EtHg analysis might generate EtHg artifacts, potentially leading to its overestimation in environmental samples. Furthermore, the extensive environmental prevalence of EtHg remains unverified, keeping its importance largely uncertain. This study investigated the formation of EtHg artifacts during propylation derivatization, evaluating artifacts formation and recoveries under different extraction methods with real samples, and confirmed the widespread occurrence of EtHg in Chinese wetlands. EtHg artifacts were obviously present during the propylation derivatization and strongly dependent on the levels of Hg 2+ (0.1–10 ng) in the derivatization solution (R² = 0.99), accounting for 1.38–2.14% of Hg 2+ . CuSO 4 -HNO 3 CH 2 Cl 2 extraction (effectively removing Hg 2+ ) combined with propylation derivatization offers excellent recovery (81–86%) and low artifacts (< LOD: 1.98 × 10 −4 ng/g) for EtHg measurement in soils/sediments, with results aligning with those from online solid phase extraction-high performance liquid chromatography-inductively coupled plasma mass spectrometry (R 2 = 0.99). Additionally, we observed the occurrence of EtHg in soil and sediment samples across 14 Chinese wetlands, with concentrations varying from 6.08 to 171 pg/g, similar to MeHg concentrations at some sites. EtHg positively correlates with MeHg, total Hg, and total organic carbon across all samples, indicating a possible biological formation. These findings help better understand and predict the prevalence of EtHg in wetlands and its key role in environmental Hg cycle.
研究领域:
环境科学
·
分析化学
·
生态毒理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）