Catalysts
·
2024
·Vol. 14
·期 1
·41
·
IF 3.8
Huajun Wang,Jingjing Ma
A series of Zn salts were used as catalysts for the reaction of glycerol and urea to produce glycerol carbonate and it was found that ZnSO4showed the highest catalytic activity. Furthermore, the effects of reaction parameters on the glycerol conversion and glycerol carbonate yield were studied in detail. The results indicated that the glycerol conversion and glycerol carbonate yield were increased with the reaction temperature, reaction time, and catalyst amount while the optimal reaction conditions were 140 °C, 240 min, catalyst amount of 5 wt% (based on the glycerol weight), and urea-to-glycerol molar ratio of 1.1:1. During the reaction, the ZnSO4catalyst is transformed into Zn(NH3)2SO4at the initial stage of the reaction and then further transformed into Zn(C3H6O3). Zn(C3H6O3) and (NH4)2SO4may be the true active species for the activation of urea and glycerol, respectively. The reaction mechanism is proposed in this article. Based on the experimental results, a reaction kinetics model considering the change in volume of the reaction system was also established, and the model parameters were obtained by fitting the experimental data. The statistical results showed that the established kinetics model is accurate.Keywords:glycerol;urea;glycerol carbonate;zinc sulfate;reaction kinetics
研究领域:
化学工程
·
催化
·
有机化学
✓ 已验证
产品关联
DOI
高影响因子
Fungal Biology
·
2025
·
IF 3
Ming-Ming Zhang,Bing Yuan,Yu-Zhen Li,Xiao-Lu Wang,Verawat Champreda,Drauzio Eduardo Naretto Rangel,Xin-Qing Zhao
Zinc sulfate is an important micronutrient for cell metabolism and stress protection. Acetic acid is a common inhibitor present in lignocellulosic hydrolysate, and the addition of zinc sulfate allows yeast cells to better cope with acetic acid stress. In-depth understanding of how zinc sulfate leads to changes in global gene transcription benefits efficient cellulosic ethanol production using robust yeast strains. Here, comparative transcriptomic analyses were performed using budding yeast Saccharomyces cerevisiae grown with and without zinc sulfate supplementation under acetic acid stress. Analysis showed enrichment of functions related to cell wall organization in the differentially expressed genes. Furthermore, we proved that deletion of two zinc-responsive genes, including TPS2 related to trehalose biosynthesis and CHS5 involved in protein export and chitin biosynthesis, respectively, impaired yeast growth under acetic acid stress. Meanwhile, weakened cell wall integrity of S. cerevisiae was observed by TPS2 deletion. Furthermore, overexpression of TPS2 and CHS5 exerted a positive effect on yeast growth under acetic acid stress. These results reveal a novel connection between zinc sulfate-mediated metabolic regulation and cell wall integrity, as well as provide a novel strategy for development of robust yeast strains for sustainable production of fuel ethanol and bio-based chemicals using lignocellulosic biomass.
研究领域:
微生物学
·
分子生物学
·
生物技术
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产品关联
DOI
PubMed
高影响因子
Mining Metallurgy & Exploration
·
2024
·Vol. 41
·期 6
·3591-3597
·
IF 1.5
Liu Yisa,Shi Zhuonan,Li Yanran,Li Kang,Ma Ruixin
Economically and conveniently removing Mg 2+ from ZnSO 4 solution has become increasingly important in view of the economic significance of zinc extractive metallurgy. In this paper, the role of surface charge in the removal of Mg 2+ by the fluorination method to form MgF 2 was investigated. According to the experimental results, both positively charged and negatively charged MgF 2 surfaces resulted in an increased zinc loss ratio. At the point of the zero-charged MgF 2 surface, when the pH is 2.3, the minimum zinc loss ratio of only 3.6% can be achieved and the removal ratio of Mg 2+ can reach 81.0%. Furthermore, the role of surface charge on the size of colloidal MgF 2 particles was clarified. Finally, the effect of centrifugation parameters on the separation of MgF 2 colloids from ZnSO 4 solution was investigated and the optimized conditions were 4000 rpm and 10 min.
研究领域:
冶金化学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
·
2021
·
IF 1.134
Xiao-Xuan ZHANG,Wu-Bo CHU,Nan JIANG,He LI
Serum albumin is the most abundant protein in mammalian plasma and is often used as a model to understand the adhesion behavior of proteins on surfaces. Attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) is used to non-destructively and dynamically detect the chemical change information between the protein and the surface during the adhesion process, which is especially suitable for in-situ measurement of samples in water. Therefore, the adhesion of bovine serum albumin (BSA) on the surface in H 2 O and D 2 O is investigated by ATR-FTIR technology, which effectively avoids the interference of the characteristic peak of deformation vibration of liquid H 2 O (1645 cm −1 ) on the amide I band of BSA. Sodium alginate, a polysaccharide widely present in the ocean, is introduced into the BSA solution to explore the changes in the adhesion process of proteins on the surface of ZnSe, and polarized ATR-FTIR spectra are also collected to study the adhesion orientation of BSA. Sodium alginate presents a negative effect on the adhesion of BSA on the surface and there is no specific orientation of BSA on the surface.
研究领域:
生物化学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2025
·
IF 3.9
Huilong Jian,Xue Yi,Lu Yang,Shengtao Zhang,Hongru Li,Fang Gao
In this study, a low-cost and friendly compound diazolidinylurea carrying a number of heteroatoms and inter/intra hydrogen bonding, a derivative of urea (DU), efficiently strengthened aqueous zinc ions batteries (AZIBs) in ZnSO4 electrolyte. The influence of DU on the zinc anode in the 2 M ZnSO4 electrolyte was fully studied by various surface chemistry and electrochemistry means. It is demonstrated that the super low concentration of DU (2 mM, 0.00556 wt %) could inhibit the formation of zinc dendrites, zinc corrosion, and the hydrogen evolution reaction during the constant current cycling of water system ZIBs, which thus enabled symmetric zinc–zinc batteries to reach a cycle life of 7336 h (nearly 306 days) under 1 mA·cm–2, 1 mA h·cm–2 at 25 °C and 426 h (nearly 18 days) at 55 °C, and inspired zinc–manganese full battery to maintain a capacity retention rate of more than 52% after cycling for 1000 cycles under a current of 2 A·g–1. These results are much superior over zinc ion cells based on the blank ZnSO4 batteries. Even if the Zn–Cu half cells including the DU/2 M ZnSO4 electrolyte were also more pronounced than those with the bare ZnSO4 electrolyte. The maximum corrosion inhibition efficiency of the DU for the zinc electrode in ZnSO4 solution exceeded 82%. Hence, the suppression of zinc corrosion and parasitic side reactions, as well as the formation and growth of zinc dendritic crystals by the addition of DU in zinc sulfate electrolyte, played a central role in intensifying aqueous zinc ion batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
·
2025
·
IF 7.8
Qi Zhang,Yingjie Xu,Hongying Xia,Chenwei Hu,Shixiong Peng,Qifei Pei,Libo Zhang
The ZnSO 4 solution leached from zinc oxide dust requires arsenic removal prior to electrolysis. Traditional lime-ferric salt methods face issues like long reaction times, large As residue, and low efficiency. This study proposes an ultrasound enhanced sodium sulfide process for efficient and rapid As removal. The influence of factors such as S/As molar ratio, pH, temperature, reaction time, and ultrasonic intensity on As removal efficiency was evaluated. Results identified the S/As ratio and pH as the most influential parameters. When the pH of zinc sulfate solution is greater than 1, zinc will enter the residue more with the increase of pH, resulting in increased zinc loss. Under optimized conditions, As removal reached 99.39%. Compared to the lime-ferric salt method, the sulfidation process reduced As-bearing residue by 73.72% and shortened the reaction time by 90%. The enhancement is attributed to ultrasonic cavitation and associated mechanical effects. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and Field-emission scanning electron microscopy (FE-SEM-EDS) analyses confirmed that the ultrasound irradiation improves sodium sulfide's As removal. Kinetic studies show that the process under ultrasonic enhancement follows internal diffusion and chemical reaction mixing control, whereas conventional conditions follow internal diffusion control. Ultrasonic enhancement reduces activation energy from 14.48 to 9.16 kJ/mol, lowering the reaction barrier and improving efficiency. The results demonstrate that ultrasound-assisted sodium sulfide treatment is a highly effective alternative for arsenic removal from ZnSO 4 solutions.
✓ 已验证
DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Yang Yang,Yunlong Zhou,Peng Ji,Pingping Yang,Jianxiong Xu,Na Li
Zinc-ion hybrid capacitors (ZIHCs) with high energy density is commercial need as energy storing devices, but facile preparation is still a challenge. Herein, we proposed a combined strategy for preparation of ZIHCs with high performance. For this purpose, a nanoemulsion assembly approach with Pluronic F127 as structure-directing agent, 1, 3, 5-trimethylbenzene as pore-expanding agent, polydopamine as carbon and nitrogen source, was used to synthesize hierarchically N-doped porous carbon spheres (N-HNCSs). The optimized sample of N-HNCS-1 exhibited uniform size of 150 nm, hierarchically porous structure, large surface area (705.46 m 2 g −1 ), and N-doping amount of 6.51 %. These properties were beneficial for the transportation of the electrolyte ions resulted in that the N-HNCS-1 electrode displayed superior electrochemical performance with specific capacity of 142 mAh g −1 . Furthermore, the Zn//ZnSO 4 + ZnI 2 //N-HNCS-1 ZIHCs achieves an exceptionally high energy density of 347.7 Wh kg −1 , which is 3-fold higher than that of Zn//ZnSO 4 //N-HNCS-1 ZIHCs. To elucidate this outstanding performance, we investigate the mechanisms involved, including Zn 2+ deposition/stripping, SO 4 2- /I - adsorption/desorption, Zn 4 SO 4 (OH) 6 ⋅0.5 H 2 O precipitation/dissolution, and redox reactions relating to iodine ions . The incorporation of ZnI 2 redox-electrolyte significantly enhanced the energy density by providing prominent pseudocapacitance via the faradaic reaction. Therefore, the high performance of Zn//ZnSO 4 + ZnI 2 //N-HNCS-1 ZIHCs is attributed to the introduction of nitrogen (N) species, advantageous 3D carbonaceous framework, and redox reactions triggered by adding zinc iodide (ZnI 2 ) into the aqueous zinc sulfate (ZnSO 4 ) electrolyte. This groundbreaking research opens up possibilities for the development of high-energy ZIHCs, and advancements in energy storage technology.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION SCIENCE AND TECHNOLOGY
·
2020
·
IF 1.718
Yingying Li,Haoliang Zhao,Weijun Yang,Yong Gao,Liming Wang
Trace cobalt ion in the zinc sulfate electrolyte is the most difficult to be removed among all metallic impurities and has the most detrimental effect on zinc electrowinning. In this study, poly(p-hydroxystyrene) resin was first prepared from polystyrene, and then 1-nitroso-2-naphthol was grafted onto poly(p-hydroxystyrene) resin through -O- group by a series of reactions to obtain the 1-nitroso-2-naphthol-grafted-poly(p-hydroxystyrene) resin. Finally, the grafted resin was supported on SiO2. The supported resin could removal trace cobalt ions with good selectivity and reusability in the zinc sulfate leachate, which can meet the requirements of the industrial electrolytic zinc process.
研究领域:
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Energy Materials
·
2020
·
IF 4.473
Yang Dong,Ming Jia,Yuanyuan Wang,Jianzhong Xu,Yongchang Liu,Lifang Jiao,Ning Zhang
Rechargeable aqueous zinc/vanadium pentoxide (Zn/V2O5) battery chemistry has recently attracted a great attention due to its high safety, material abundance, cost effectiveness, and desirable energy density. However, the reaction mechanism of V2O5 in an aqueous electrolyte remains a topic of discussion, and the limited life span resulting from the active materials dissolution hinders the further development of the Zn/V2O5 battery. Here, we report a long-life aqueous Zn/V2O5 battery using a simply ball-milled V2O5 cathode, a concentrated aqueous ZnSO4 electrolyte, and a metallic Zn anode. Electrochemical, structural, and spectroscopic analyses reveal that the V2O5 electrode experiences a highly reversible proton (H+) and Zn2+ co-intercalation mechanism in aqueous media, which differs from the conventional cognition that Zn2+ ion as the only charge carrier inserts into the V2O5 host. The electrolyte-involved (dis)appearance of zinc sulfate hydroxide on the electrodes’ surface caused by H+ (de)intercalation has also been clarified. In addition, the optimized 3 M ZnSO4 electrolyte can not only suppress the dissolution of the V2O5 cathode but also enhance the stability of the Zn anode, thereby enabling the stable operation of the Zn/V2O5 battery with a reversible capacity of 357 mAh g–1 after 2000 cycles without obvious decay at 2.0 A g–1. This work opens up frontiers in the mechanism insight and electrolyte formulation for aqueous Zn batteries.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
AQUACULTURE NUTRITION
·
2021
·Vol. 27
·期 3
·897-907
·
IF 3.497
Fan Luo,Zhihuan Fu,Mingjie Wang,Zhiwei Ke,Manna Wang,WenXiong Wang,Murtaza Hasan,Xugang Shu
Zn is one of the essential elements to maintain normal fish metabolic process (including growth, development and reproduction), which have different chemical status in nature including inorganic, organic and nano-sized. In this work, the efficacy of gluconic acid zinc (Glu-Zn), nano zinc oxide (Nano ZnO), zinc sulphate (ZnSO 4 ) on the growth performance, tissue mineral elements deposition, antioxidant activity and immune response of the tilapia fish Nile tilapia ( Oreochromis niloticus ) was evaluated. Three experimental diets were prepared by adding different forms of Zn sources (ZnSO 4 as a control group) with same Zn concentration (40 mg/kg) and used to feed fish for 60 days. The biological trial results displayed that the growth performance of Nile tilapia has not obviously affected by different Zn form source supplement. However, Glu-Zn and Nano ZnO supplements have significantly stimulated the Zn and Cu absorption deposition efficiency in the fish tissues as compared to ZnSO 4 group. Besides, there was a significant increase in Cu-Zn superoxide dismutase (35.03 U/mgprot), alkaline phosphatase (79.34 U/mgprot), aspartate aminotransferase (23.42 U/L), alanine aminotransferase (18.45 U/L), glutathione peroxidase (171.24 U/mgprot) and fatty acid synthase (11.55 ng/mL) content in Glu-Zn treatment. Additionally, Glu-Zn supply significantly increased serum lysozyme (9.91 U/mL), immunoglobulin M (0.48 g/L), complement 3 (0.74 g/L) and complement 4 (0.95 g/L) activity of Nile tilapia. Also, compared to ZnSO 4 diet, lysozyme (11.44 U/mL) and complement 4 (0.63 g/L) content were obviously higher in fish fed Nano Zn diet. These findings revealed that supplementation with Glu-Zn as a Zn source in feed is better than ZnSO 4 for improving tissue mineralization, antioxidant stress, alleviate lipid peroxidation and immunity response of Nile tilapia. Meantime, Nano ZnO also played a positive role in the tissue mineralization and immunity response of Nile tilapia.
研究领域:
水产养殖
·
营养学
·
免疫学
·
生物化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMPHYSCHEM
·
2025
·
IF 2.2
Shaofang Shi,Mingyang Chen,Xuanying Huo,Juan Wang,Qin Zhong
The problems associated with dendrite growth, hydrogen evolution reaction, and corrosion reaction on the zinc anode surface have hindered the commercial application of zinc-ion batteries (ZIBs). Herein, a crosslinked hydrogel electrolyte (zinc sulfate/polyacrylamide/triethyl phosphate hydrogel, denoted as ZS/TEP/H 2 O GEL) is designed to stabilize the Zn anode interface and electrolyte, smooth Zn deposition and improve battery cycle life. The ZS/TEP/H 2 O GEL electrolyte limits water molecule activity through a 3D network, thereby suppressing water-related side reactions and enhancing the stability of the anode. In addition, the TEP additive in ZS/TEP/H 2 O GEL induces the Zn 2+ to deposit preferentially along the (002) crystal plane and enables homogeneous zinc deposition. Ultimately, the Zn//Zn battery assembled with ZS/TEP/H 2 O GEL can achieve an extremely long-cycle life exceeding 4000 h at 0.2 Ma cm −2 . Besides, the Zn//Cu half battery can be plated/stripped stably for more than 1000 cycles at a current density of 1 mA cm −2 . The Zn//NVO full battery with ZS/TEP/H 2 O GEL electrolyte is able to maintain a relatively stable trend at a later stage. This work offers a reference for the exploration of commercialized hydrogel electrolytes with stable zinc anodes to realize long-life ZIBs. Graphical In this work, a triethyl phosphate reinforced polyacrylamide-based hydrogel electrolyte is designed and prepared and used for zinc ion batteries. The long-cycle stability of Zn//Zn symmetric batteries, reversibility, and Zn//NVO full battery performance assembled with this electrolyte are evaluated. The effect of this electrolyte on Zn deposition behavior is also studied.
研究领域:
电化学
·
能源材料
·
电化学储能
·
电池技术
·
功能高分子材料
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Guochao Wan,Wenhao Sun,Lei Liu,Changming Mao,Zhonghua Zhang,Xiaosong Guo,Guicun Li
Reducing the free radicals associated with electrochemical reactions and the activity of H2O is an effective measure to inhibit side reactions and improve stability for rechargeable aqueous Zn-ion batteries. Herein, methylsulfonylmethane (MSM), a popular dietary supplement for humans, is used as an innoxious and low-cost additive to scavenge free radicals and optimize the coordination condition for aqueous ZnSO4 electrolyte. Profiting from the double effects of MSM, the Zn∥Ti asymmetric cells exhibit excellent stability and display a high Coulombic efficiency (CE) of 99.5% in the aqueous MSM/ZnSO4 electrolyte for 1000 h, and the Zn∥Zn cells achieve a long cycle life of over 2000 h. In addition, MSM can effectively suppress the dissolution of an ammonium vanadate (NVO) cathode. The positive role of MSM is further exhibited in the Zn∥NVO and Zn∥PANI full cells, exhibiting outstanding charge/discharge performance and capacity retention. This work provides a type of innoxious additive for an aqueous electrolyte for aqueous rechargeable zinc-ion batteries.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）