FOOD SCIENCE AND TECHNOLOGY INTERNATIONAL
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2023
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IF 2.3
Mingru Wang,Lei Ma,Peng Xie,Cuiping Li,Xiaoxi Yang,Yumiao Lang
The characterization and antioxidant ability of Res-loaded MP-CS stabilized Pickering emulsion, and its effects of fat reduction (25%, 50%, 75%, and 100%) in meat patties on pH, color, texture, cooking yield and antioxidant activity were investigated. Fat substitute using emulsion had no significant effect on pH and cooking yield. The addition of emulsion increased L* value and reduced a* value. a* value of meat patties with resveratrol added were higher than those without resveratrol group. Hardness and chewiness of meat patties with 25% and 100% fat replacement was lower than 50% and 75% fat replacement. The addition of emulsion could improve the network structure of meat patties and enhance oxidative stability. Oxidative stability of meat patties was improved by Res-loaded MP-CS stabilized Pickering emulsion. The results showed that MP-CS stabilized Pickering emulsion had great potential to be used as fat substitute for developing low-fat meat products, and the addition of resveratrol can improve the antioxidant ability of substitute fat meat products.
研究领域:
食品科学
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生物化学
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Journal of Environmental Chemical Engineering
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2023
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IF 7.7
Yongpan Shan,Yajie Ma,Changcai Wu,Xiangliang Ren,Xianpeng Song,Dan Wang,Hongyan Hu,Xiaoyan Ma,Yan Ma
Control release of pesticides based on target plant characteristics is highly desirable for improving the effective utilization rate and reducing non-target organism risks. Here, the controlled release formulations (Cu-CS@IN@MIL-100 (Fe)) were successfully prepared by employing MIL-100 (Fe) as the carrier material, indoxacarb (IN) as the model pesticide, and chitosan (CS) as a coating to chelate copper ions by chemical crosslinking. The prepared Cu-CS@IN@MIL-100 (Fe) had an acceptable loading content (36.25 %). The introduction of CS and copper ions endowed it with sustained release properties under weak acidity conditions like cotton leaves. The laboratory bioassay experiments showed that Cu-CS@IN@MIL-100 (Fe) had practical good insecticidal activity (LC 50 = 4.936 mg/L) in controlling Helicoverpa armigera larvae. For long-term control efficacy experiments, after 14 days of application, the Cu-CS@IN@MIL-100 (Fe) treatment (73 %) mortality of Helicoverpa armigera larvae was significantly higher than the 15 % indoxacarb suspension concentrates (SC) treatment (27 %). Moreover, Cu-CS@IN@MIL-100 (Fe) had no adverse effect on cottonseed germination and the acute toxicity to Chrysopa pallens larvae was significantly lower than IN SC. Therefore, MIL-100 (Fe) could be used as an ecological safety carrier for pesticide delivery to improve IN effective utilization and reduce non-target organism risks.
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HYDROMETALLURGY
·
2022
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IF 4.217
Wanlei Geng,Debin Wang,Yinfeng Liu,Jialing Zhang,Limei Zhong,Runxiong Lin,Li Ding,Lianying Wu,Dianquan Dong
Developing a stable and efficient adsorbent to recover Cs + from liquid resources or to remove radioactive Cs + from wastewater is challenging. In this study, the precursor Cs 2 Ti 6 O 13 (CTO) was synthesized by the solvothermal and solid-phase sintering methods for the first time, then it was acid-modified to synthesize a novel H-type titanium-based material (H-CTO nanosheets). A series of batch adsorption experiments was carried out. The adsorption of Cs + on H-CTO was evaluated under different experimental conditions, including contact time, temperature, initial Cs + concentration, pH, and interfering ions. Experiments show that H-CTO exhibits a larger adsorption capacity (329 mg/g) and better cycle performance than the currently reported titanium-based adsorbents. The cesium ions were easily eluted by the 0.2 M HCl solution; the adsorption capacity did not decrease significantly after five cycles. Furthermore, the adsorption behavior of Cs + on H-CTO can be described by the Langmuir isotherm and pseudo-second-order kinetic models. Characterization using IR and Raman spectroscopic analyses indicates that the adsorption mechanism of Cs + on H-CTO involves O H bond cleavage and O Cs bond formation. Thermodynamic studies showed that low temperatures are favorable for Cs + adsorption and are spontaneous. Overall, the results suggest that H-CTO nanosheets are promising for the recovery or removal of Cs + ions from Cs-containing liquid ores or radioactive wastewater .
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Journal of Materials Chemistry C
·
2023
·Vol. 11
·期 38
·13030-13038
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IF 6.4
Jie Chen,Yu Li,Zhe Yin,Shuaibing Wang,Ouyang Lin,Wentao Niu,Feng Teng,Aiwei Tang
Cu-based halide perovskites have attracted extensive attention in the optoelectronic field owing to their non-toxic nature and excellent stability. Nevertheless, the growth mechanism of Cu-based halide perovskite nanocrystals (NCs) remains unclear, and the size and uniformity of NCs are difficult to control, which seriously hinders the development of these materials. Herein, a facile hot-injection method was applied to control the size and uniformity of blue-emitting (450 nm) Cs3Cu2I5 NCs. The dimensions of Cu-based perovskites were tuned from zero-dimensional NCs to one-dimensional nanorods. Additionally, the sizes of Cs3Cu2I5 NCs could be tuned from 22.1 ± 1.5 to 8.9 ± 1.1 nm by varying the reaction temperature and the dosage of cesium oleate, which is also extended to tune the size of Cs3Cu2X5 (X = Br and Cl) NCs. Interestingly, the photoluminescence (PL) maximum at 450 nm was almost unchanged with the size tuning, indicating that PL is from the radiation recombination of self-trap exciton emission. Moreover, the phase transition temperature of Cs3Cu2X5 NCs was regulated by varying the size, where a small size is beneficial to the decrease of the phase transition temperature. As a demonstration, the different-sized Cs3Cu2X5 NCs exhibited a size-dependent temperature response, and the response time became shorter as the size decreased. The temperature response of the small-sized Cs3Cu2X5 NCs could be decreased to only 15 s, which is better than that of their counterparts reported previously. This work may deepen the understanding of the size-dependent phase transition process in Cu-based perovskite NCs.
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JOURNAL OF SOLID STATE CHEMISTRY
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2022
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IF 3.656
Qiuping Fu,Jie Lou,Hui Yuan,Rongbin Zhang,Chunmei Zhang,Changli Mo,Jun Luo,Lei Zha,Pan Wu
ZIF-67@CS composites were prepared by in-situ growth method. The phase and structure of ZIF-67@CS composite were characterized by X-ray powder diffraction (XRD) and fourier transform infrared spectroscopy (FT-IR). The morphology of the materials was characterized by field emission scanning electron microscope (SEM). X-ray photoelectron spectroscopy (XPS) measurements demonstrated the existence of Pb(II) after the adsorption process of composite materials. The adsorption of Pb(II) by composite material conforms to Langmuir model, the theoretical maximum adsorption capacity is 505.051 mg/g. The pseudo-second-order kinetic model can well describe the adsorption kinetic process.
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DALTON TRANSACTIONS
·
2022
·Vol. 51
·期 39
·15067-15073
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IF 4.569
Yi Huang,Junben Huang,Yong Zhang
Metal thiophosphates have aroused much research interest due to their structural chemistry and possible applications as infrared functional materials. In this study, five quaternary Sr-based alkali metal thiophosphates ASrPS4 (A = Li, Na, K, Rb, Cs) were obtained. Their structural comparison shows that their symmetry undergoes transformation from tetragonal (I41/acd) to monoclinic (P21/c) to orthorhombic (Pnma) system, which is induced by the cation size effects and coordination features of different alkali metal cations. The experimental and theoretical results demonstrate that the band gaps of all title compounds are large, namely 3.6–3.9 eV (experimental results) and 3.78–4.12 eV (HSE06). Theoretical analyses indicate that the [PS4] group could be regarded as a good unit for designing wide band gap compounds, and the birefringence of NaSrPS4 is 0.08 at the fundemental 1064 nm wavelength, which shows that it may be a potential infrared birefringent material.
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ADVANCED FUNCTIONAL MATERIALS
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2022
·Vol. 32
·期 21
·2112717
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IF 19.924
Yi-Ming Zhao,Lin Cheng,Kai-Yao Wang,Xin Hao,Juan Wang,Jia-Ying Zhu,Meng Sun,Cheng Wang
Switchable coadsorption and separation for elimination/partitioning of Cs + and Sr 2+ is achieved by pH-controlled ion exchange using a potassium thioantimonate K 2 Sb 4 S 7 ·2H 2 O ( SbS-1K ) with fantastic pH durability from diluted NaOH (pH 12) to concentrated HCl (3 m ). At pH 6, SbS-1K exhibits ultrafast adsorption kinetics ( R ≈ 90% in 2 min for Cs + and 20 min for Sr 2+ ) and high removal rates ( R ≈ 98–99%) at equilibrium for both Cs + and Sr 2+ . At pH 2, the Sr 2+ adsorption is inhibited by H + with a great loss in R Sr to 11.18%, whereas the R Cs remains at 96.99%, contributing to a top-ranked separation factor SF Cs/Sr of 256. The SbS-1K -filled ion exchange column can be switched between the eliminating ( R Cs > 99.91%; R Sr > 98.19%) and separating ( R Cs > 98.99%; R Sr ≈ 0±3%) modes for treating continuous flow with a variation from pH 6 to pH 2 or vice versa. The SbS-1K /PTFE membrane exhibits coadsorption and separation effects for filtration of low concentrated mixed Cs + and Sr 2+ solution (1 ppm for each), even at an ultrafast vacuum filtration speed (30 mL min –1 ). Combined with easy synthesis and high β/γ irradiation resistance, SbS-1K represents a new-concept bifunctional exchanger with discriminating intelligence for equipment innovation.
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SCIENCE OF THE TOTAL ENVIRONMENT
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2022
·
IF 10.753
Jie Xu,Guangyong Zeng,Qingquan Lin,Yi Gu,Xuelian Wang,Zhenhua Feng,Arijit Sengupta
Due to the presence of several hydroxyl and amino groups on the surface, chitosan (CS) has been reported to be a potential candidate to solve the pollution caused by dyes in different industrial wastewater. However, it is associated with the recycling issues. Nano-Fe 3 O 4 has the advantages of easy magnetic separation and surface functionalization, which can improve the efficiency as well as selectivity of separation. However, its tendency for agglomeration can reduce the adsorption capacity. MXene can provide suitable support for both CS and Fe 3 O 4 to construct new MXene@Fe 3 O 4 @CS composites. In this study, MXene@Fe 3 O 4 @CSmagnetic nanosphere was synthesized by ultrasonic self-assembly to remove Congo red (CR). Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Fourier Transform Infrared (FT-IR) spectroscopy were employed to characterize the nanocomposites. According to the batch experiments, the adsorption kinetics were found to predominantly follow quasi-secondary rate kinetics. The adsorption followed Langmuir isotherm model. The adsorption process was found to be endothermic, entropy-driven, and thermodynamically spontaneous process. The adsorption capacity for CR was estimated as 620.22 mg·g −1 .
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ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2022
·Vol. 30
·期 15
·42575-42586
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IF 5.19
Appu Manikandan,Wu Huixiang,Chen Hao,Huang Jianying
In the present study, we hypothesized that novel nanocomposites of chitosan-coated cerium oxide (CS/CeO 2 NCs) derived from aqueous extracts of tea polyphenols would be stabilized and reduced by using green chemistry. The UV–visible spectrum of the synthesized material revealed an SPR peak at 279 nm, and the morphological characteristics of nanoparticles (NPs) as a uniformly distributed spherical shape with a size range of 20 nm were confirmed by field emission scanning electron microscopy (FESEM). The Fourier transform infrared spectroscopy (FTIR) spectrum illustrated the amino groups of chitosan-coated with CeO 2 NPs on the surface. While, the hydrodynamic size (376 nm) and surface charge (+ 25.0 mV) of particles were assessed by dynamic light scattering (DLS), and the existence of oxidation state elements Ce 3d, O 1 s, and C 1 s was identified by employing X-ray photoelectron spectroscopy (XPS). A cubic fluorite polycrystalline structure with a crystallite size of (5.24 nm) NPs was determined using an X-ray Diffractometer (XRD). The developed CS/CeO 2 NCs demonstrated excellent antibacterial and antifungal efficacy against foodborne pathogens such as Escherichia coli , Staphylococcus aureus , and Botrytis cinerea with zone of inhibition of 13.5 ± 0.2 and 11.7 ± 0.2 mm, respectively. The results elucidated the potential of biosynthesized CS/CeO 2 NCs could be utilized as potent antimicrobial agents in the food and agriculture industries.
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MATERIALS CHEMISTRY AND PHYSICS
·
2022
·
IF 4.778
Yang-Peng Lin,Xiao-Ying Huang,Ke-Zhao Du
Bromine is essential to scientific study and industrial application. However, the high toxicity, volatility and corrosivity of Br 2 increase the risk of leakage or explosion. Using solid materials to capture bromine gas can alleviate the leakage and explosion. Herein, X Br 3 ( X = Cs, C 8 H 20 N and C 16 H 36 N) polybromide compounds, were synthesized by the one-pot Br 2 -free solvothermal method. CsBr 3 can reversibly decompose and generate along with the release and capture of Br 2 gas, while Br 2 can be separated from aqueous solution in the form of Et 4 NBr 3 (Et = Ethyl) or Bu 4 NBr 3 (Bu = Butyl). CsBr 3 can release 42.89% Br 2 per molecular formula, which is the highest in reported crystalline materials so far. Bu 4 NBr can enrich Br 2 in water with approximately 73% yield through the hydrophilic-hydrophobic effect. Our study presents an alternative method for solidification and efficient recycle of Br 2 .
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Journal of Water Process Engineering
·
2023
·
IF 7
Zhiguo Chen,Wenqing Cao,Yan Li,Jingpeng Song,Yiyun Liu,Juncheng Liu,Rong Zhang,Rongxin Su,He Bai
The remediation of the chlorinated organic compounds via zero-valent iron (ZVI) and microorganisms coupling method in the groundwater has received increasing attention and research. However, the addition of external microorganisms has poor adaptability in complex environmental applications, and ZVI is easily inactivated and has weak long-term degradation performance in the environment. The existing modification preparation of ZVI modified materials seem relatively lacking economical and environmentally friendly methods. This study obtained a new type of highly efficient degradation bacterium BL5, and introduced an economical and simple method for preparing the functional CS@ZVI biological stimulation materials. The performances of CS@ZVI-BL5 systems for the removal of TCE, chloroform , 1,2-dichloroethane, and chlorobenzene were all reached 100 % after 12 days, which was significantly improved the degradation efficiency by the CS@ZVI or BL5 (95.65 %, 93.64 %, 90.54 %, 88.85 %) alone. This is the first method that extracted and screened an autochthonous high-efficiency degrading bacterium from contaminated sites, and developed a biological stimulation material to improve the remediation. Here we demonstrate that the modified CS@ZVI with BL5 microorganisms synergistically enhanced the degradation performance.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Yaqin Rong,Shuai Li,Junjian Niu,Zhongde Wang,Xiaogang Hao,Chengwen Song,Tonghua Wang,Guoqing Guan
Radioactive cesium ( 137 Cs) ions exhibit high-energy gamma radiation and long half-life. When they enter water body, serious environmental problems and damage to the human body are always generated. Herein, an electroactive composite membrane was facilely prepared by uniformly deposition of nickel hexacyanoferrate (NiHCF) nanoparticles on the surface and inner wall of coal-based tubular carbon membrane (CTCM) for rapid and selective separation of Cs + from wastewater. This NiHCF incorporated CTCM tube exhibited an extremely high removal rate (over 99.99%) over a long period. Meanwhile, it also demonstrated extreme Cs + selectivities even in the solutions with high coexisting ion concentrations (e.g., Cs + :Na + = 1:99, Cs + :K + = 1:99). The rapid and selective Cs + uptake/release should be attributed to the better dispersion of NiHCF nanoparticles with high selectivity to Cs + in the CTCM tube, which reduced the mass transfer distance, increased fluid turbulence and accelerated mass transfer rate. It is expected that such a NiHCF incorporated CTCM tube could be a promising alternative of conventional materials for the separating of radioactive Cs + ions.
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