ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
·
2015
·
IF 2.084
Ting Wang,Xiaoxian Zhang,Dayong Tian,Ya Gao,Zhifen Lin,Ying Liu,Lingyun Kong
CO 2 , as the typical greenhouse gas causing the greenhouse effect, is a major global environmental problem and has attracted increasing attention from governments. Using algae to eliminate CO 2 , which has been proposed as an effective way to reduce the greenhouse effect in the past decades, can be disturbed by a growing number of artificial chemicals. Thus, seven types of chemicals and Selenastrum capricornutum (algae) were examined in this study, and the good consistency between the toxicity of artificial chemicals to algae and the disturbance of carbon fixation by the chemicals was revealed. This consistency showed that the disturbance of an increasing number of artificial chemicals to the carbon fixation of algae might be a “malware” worsening the global greenhouse effect. Therefore, this study proposes an original, promising index to assess the risk of deepening the greenhouse effect by artificial chemicals before they are produced and marketed.
研究领域:
环境科学
·
生物学
✓ 已验证
DOI
高影响因子
RSC Advances
·
2020
·Vol. 10
·期 5
·2740-2746
·
IF 3.119
Jiayan Deng,Min Peng,Zhanyang Gao,Yi Wang,Baoshan Wang,Wenjun Zhou,Ruichao Peng,Yunbai Luo
Sulfur hexafluoride (SF6), which is known as a superior electrically insulating and arc-quenching medium, plays a decisive role in the modern transmission and distribution network of electric energy, especially in high-voltage power networks. However, the ever-increasing usage of SF6 also leads to the continuous escalation of atmospheric SF6 levels, which is considered to be the main cause of the greenhouse effect. To decrease this environmental impact, eco-friendly alternatives to SF6 have been researched for decades. To date, no significant success has been made regarding replacement gases for transmission networks. Some potential alternatives have comparatively lower global warming potential (GWP) but involve technical trade-offs. Thiazyl trifluoride, which has some excellent chemical and electric properties, is a novel substitution candidate for SF6. In this article, an efficient synthetic route starting from sulfur monochloride and followed by ammonization and fluorination was proposed. The structures of the intermediates and the target products were determined by X-ray diffraction (XRD), infrared spectroscopy (IR), and gas chromatography-mass spectrometry (GC-MS). The effects of some determining factors on the yield and purity, including the molar ratio of the reactants, recrystallization conditions and condensation temperature, were also investigated. The results showed that the overall yield of thiazyl trifluoride was approximately 25%, while the purity could be up to 90.6% under optimal conditions.
研究领域:
化学工程
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环境科学
·
电气工程
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2023
·
IF 9.9
Yuxing Shi,Zhouze Chen,Pengyu Hao,Pengnian Shan,Jialin Lu,Feng Guo,Weilong Shi
Photothermal-assisted photocatalytic hydrogen production is a very promising way to maximize solar energy utilization to obtain clean energy. Herein, we designed a composite photocatalyst with coating core-shell Fe 3 O 4 @SiO 2 nanoparticles on the surface of ZnIn 2 S 4 micro-flowers for high-efficient photothermal-assisted photocatalytic water/seawater splitting. Experimental results reveal that in the core-shell structure of Fe 3 O 4 @SiO 2 , the addition of the SiO 2 shell in Fe 3 O 4 @SiO 2 not only separates the photothermal and photochemical components, avoiding competition between them, but also further increases the temperature of the core in a manner similar to the greenhouse effect , which was used as a hot core to provide heat to the ZnIn 2 S 4 photocatalyst to increase the surface reaction temperature and enhance the collision chances of photo-generated carriers into causing severe recombination of carriers, thus promoting the hydrogen generation. Significantly, the optimal photocatalytic water/seawater splitting into hydrogen production rates over Fe 3 O 4 @SiO 2 /ZnIn 2 S 4 are up to 1258.5 and 1108.5 μmol g -1 h −1 , which are 11.9 and 14.7 times higher than that of pristine ZnIn 2 S 4 , respectively. This study provides an idea for the design of highly efficient photothermal-assisted photocatalysts.
研究领域:
材料科学
·
能源科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2025
·
IF 14.9
Shijie Yang,Guangbin Zhang,Zijie Lin,Zhihuan Li,Min Wang,Sheng Wang,Yuhui Sun,Zhongwei Yu,Pei Zhang,Linjiao Ren,Liying Jiang,Xiaoying Song,Yalong Zhao,Changshun Wang,Jing Wu,Linglong Zhang,Hucheng Song,Jun Xu
Lithium-carbon dioxide (Li-CO 2 ) batteries using high ion-conductive inorganic molten salt electrolytes have recently attracted much attention due to the high energy density and potential application of carbon neutrality. However, the poor Li-ion conductivity of the molten-salt electrolytes at room temperature (RT) makes these batteries lose most of their capacity and power as the temperature falls below 80 ℃. Here, inspired by the greenhouse effect, we report an RT molten salt Li-CO 2 battery where solar energy can be efficiently harvested and converted into heat that is further localized on the cathode consisting of plasmonic ruthenium (Ru) catalysts and Li 2 CO 3 -based products via a greenhouse-like phenomenon. As a result, the solar-driven molten salt Li-CO 2 battery demonstrates a larger full discharge/charge capacity of 9.5 mA h/8.1 mA h, and a longer cycle lifespan of 250 cycles at 500 mA/g with a limited capacity of 500 mA h/g at RT than the molten salt Li-CO 2 battery at 130 ℃. Notably, the average temperature of the cathode increases by 8 °C after discharge to 0.75 mA h, which indicates the infrared radiation from Ru catalysts can be effectively suppressed by discharged Li 2 CO 3 -based products. This battery technology paves the way for developing low-temperature molten salt energy storage devices.
研究领域:
材料科学
·
能源研究
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 47
·22306-22315
·
IF 3.591
Wei Yang,Kejing Wu,Yingming Zhu,Yingying Liu,Houfang Lu,Bin Liang
Biofuels have generated considerable interest as a direct substituent for fossil fuels due to the energy crisis and greenhouse effect. In this article, bifunctional Pt–Mo catalyst supported on activated carbon (AC) was fabricated for in situ hydrogenation of methyl stearate to alkanes using small amounts of formic acid (FA) as a hydrogen source. A total yield of 75.3% is obtained under 290 °C for 2 h with a small FA/methyl stearate mole ratio of 3.9. Prolonging the reaction time to 6 h results in a total yield of 100%. The experimental and characterization results indicate that the strong interaction of β-Mo2C and Pt over Pt–Mo/AC catalysts give rise to excellent catalytic performance and that Pt active sites are responsible for FA dehydrogenation and decarbonylation of methyl stearate to heptadecane and Pt-doped β-Mo2C active sites catalyzing hydrodeoxygenation of methyl stearate to octadenane. This catalyst is stable during three recycles and is versatile for various feedstocks.
研究领域:
化学工程
·
催化
·
可再生能源
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED MATERIALS
·
2025
·
IF 26.8
Jianguo Wang,Meng Chen,Xiangkun Elvis Cao,Xianglei Liu,Peidong Wei,Qiao Xu,Haichen Yao,Enda Ci,Qingfeng Zhang,Shushan Lv,Yang Tian,Yongliang Li
Thermal energy, encompassing both heating and cooling demands, accounts for the largest share of global energy consumption. Harvesting thermal energy from the environment, including the Sun and darkness, holds promise for decarbonizing thermal sectors, but suffers from low efficiency and intermittency. Here, inspired by ginkgo leaves featuring wax-coated vertical palisade cells, a 24-h bidirectional thermal energy harvesting approach is developed by integrating spectrally selective aerogels with anisotropic composite phase change materials (CPCMs). During daytime, sunlight is captured, converted into heat, and stored in anisotropic CPCMs with high axial thermal conductivity (24.16 W·m −1 ·K −1 ) and an anisotropy ratio of 3.7. Under one-sun irradiation, a high solar thermal energy storage efficiency of 87.5% with a peak temperature of 382.3 K is achieved by leveraging spectrally selective aerogels exhibiting “greenhouse effects”. At night, a maximum radiative cooling power of 118.8 W·m −2 is attained, enabling cold energy storage at a temperature 4.0 K below ambient. The proposed leaf-inspired device operates continuously over 24 h, delivering annual thermal energy savings of 5321.4 MJ·m −2 ·yr −1 , outperforming standalone solar thermal and radiative cooling systems by 44.8% and 223.3%, respectively. This bioinspired bidirectional energy harvesting strategy employing both solar and outer space resources, establishes a promising approach toward a carbon-neutral thermal energy supply.
研究领域:
可再生能源
·
热工工程
·
材料科学
·
可持续技术
·
仿生学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Guangping Lei,Yang Lu,Zihan Liu,Yayun Zhang,Guojun Xi,Huiyuan Cheng,Wenji Rao,Xuhuan Guo
The greenhouse effect associated with excessive CO 2 emission has led to a series of environmental issues, thus developing excellent adsorbents for CO 2 capture from flue gas offers a sustainable approach. To combine the merit of multiple functional components, novel FeTPP@MIL-101(Cr) was prepared by incorporation of 5,10,15,20-tetrakis(4-methylphenyl)porphyrinato iron (III) chloride (FeTPP) into MIL-101(Cr) cages via in-situ packaging strategy. The cage-confined FeTPP can both regulate the pore structures of MIL-101(Cr) and provide additional binding sites for CO 2 adsorption. Profiting from extra interactions for CO 2 component and the “sieving effect” for N 2 component induced by incorporation of FeTPP, the discrepancy of isosteric heat for CO 2 and N 2 was largely amplified. Notably, the CO 2 /N 2 selectivity (15/85, v / v ) calculated by ideal adsorbed solution theory (IAST) increased from 17.1 (MIL-101 (Cr)) to 41.8 (FeTPP@MIL-101 (Cr) with FeTPP loading of 4.98 wt%) at 273 K, 100 kPa, which is 2.44 times larger than that of pristine MIL-101 (Cr) and also exceeds most reported adsorbents.
研究领域:
环境科学
·
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Jiawei Zhou,Ming Liu,Xue Chen,Shiyang Bai,Jihong Sun
The purification and separation of CO 2 , CH 4 , and N 2 from biogas, flue gas, and coalbed gas for carbon capture and storage are main technology in mitigating the greenhouse effect. The Mg-MOF-74@clinoptilolite (Mg-MOF-74@CP) composites are successfully synthesized through an interfacial growth of Mg-MOF-74 onto the surfaces of the synthesized CP for adsorption and separation of CO 2 , CH 4 , and N 2 . The structural characteristics of the resultant composites are systematically characterized by various characterizations. In particular, small-angle X-ray scattering (SAXS) patterns are used to elucidate the fractal structural evolutions of the parent CP, Mg-MOF-74, and Mg-MOF-74@CP. Meanwhile, the single-component adsorption isotherms for CO 2 , CH 4 , and N 2 are demonstrated. The breakthrough measurements on CO 2 /CH 4 and cycling tests on CO 2 are conducted. The results elucidate that the CO 2 equilibrium capacity of Mg-MOF-74@CP is higher than that of parent CP, displaying a high affinity toward CO 2 , the longer breakthrough time and enhancement of CO 2 uptake exhibit a better separation performance. The cycling tests on CO 2 reveal that the Mg-MOF-74@CP could be used repetitively, promoting its practical application in an energy-saving and economical way. Additionally, the adsorption isotherms and adsorption sites of the prepared Mg-MOF-74@CP are simulated using the Grand Canonical Monte Carlo (GCMC) method, elucidating the mechanism of the gas separation performance of Mg-MOF-74@CP.
研究领域:
材料科学
·
化学工程
·
环境科学
·
吸附技术
·
气体分离
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）