ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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2020
·Vol. 28
·期 6
·6980-6989
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IF 3.056
Yan Lili,Guo Xin,Rao Pinhua,Huang Lu,Sun Mingxing,Li Liang,Shen Guoqing
Soil fumigation using 1,3-dichloropropene (1,3-D) and chloropicrin (CP) is an important strategy for agriculture production; however, excessive emissions can cause air pollution and possible human exposure. In this study, solar light-driven CuInS 2 /ZnS:Al-TiO 2 photocatalytic film was prepared through spin-coating on the flexible polyethylene terephthalate (PET) substrate of 0.1 mm. Using the photocatalytic film, degradation of 1,3-D was inhibited in the Pci-clor 60 formulation of 1,3-D and CP. However, the degradation of CP was accelerated in this formulation, and the half-life was shortened from 0.66 to 0.40 h. Emissions of 1,3-D from soil to the air were reduced by 97.30%, 97.17%, 47.10%, and 7.88%, for treatments of D + Film, D + C + Film, D + PET, and D, respectively. The efficiencies for reducing 1,3-D emission were significantly improved by about 1.1 and 11.3 times using the film, compared with using the PET alone and no film, respectively. Furthermore, fumigation effects on nematodes could still achieve higher than 90%. The findings provided a basis for the practical application of quantum dot films to reduce soil fumigants emissions by photocatalytic degradation.
研究领域:
环境科学
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农业化学
·
材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2023
·
IF 15.1
Ling Liu,Jia Fu,Xueyan Hu,Dengsen Yuan,Jin Wang,Qingwen Li
A large number of areas on earth is suffered from large-temperature fluctuation (LTF) during the days or over the seasons. However, current strategies for adaptive thermal management in the LTF environment are limited. In this study, we developed a simple and cost-effective strategy to synthesize ultrafine and nearly monodispersed silica aerogel microspheres (SAM) with an average diameter of 1.9 μm. The aerogels possess low thermal conductivity of 0.039 W·m −1 ·K −1 and can preserve heat by reducing heat dissipation in cold environments. Meanwhile, IR emissivities range from 0.13 to 0.98 and a relatively high solar reflectance of 0.65, leading to an impressive sub-ambient cooling of 9.1 °C in a hot daytime. Additionally, a theoretical carbon emission analysis of the aerogels' daytime cooling and night warming suggests a carbon emission reduction of 13.6 tCO 2 eq. This study develops a strategy to synthesize ultrafine SAM and provides a strategy for passive cooling and passive warming by SAM with the combination of passive cooling and thermal insulation, which could help to achieve global carbon neutrality and sustainability, and solve the problems of thermal management with large temperature-fluctuation.
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
JOURNAL OF MATERIALS SCIENCE
·
2025
·
IF 3.9
Du Shanmei,Xiao Yidan,Zhang Chaoyan,Fu Chongyang,Li Qizheng,Hou Limei,Li Qiang,Shi Chuan,Wang Xiaoxiong
Compared with the centralized and orderly energy supply system, the distributed energy system has attracted wide attention, although it has the characteristics of high entropy. These new energy sources can effectively solve the problem of global warming and reduce carbon emissions. However, in the high-entropy application environment, the low application frequency of a single device determines that its manufacturing energy consumption and carbon emissions cannot be ignored. Obviously, the secondary utilization of items through a reasonable design route can effectively reduce carbon emissions, and nanogenerators have an excellent advantage in this technical path. Among them, nanogenerators can effectively reduce the additional carbon emissions generated during preparation because they can use waste cloth. At the same time, the recycled battery has been proved to be able to effectively utilize its low-capacity characteristics when collecting the energy of the nanogenerator, accelerating the energy collection process of the nanogenerator so as to change faster from energy collection to energy output. More importantly, this energy system has been proved to be able to be assembled for emergency use in wilderness situations compared to other devices that require standard processing. We suggest that this system-level design inspires designing future energy systems and further reduce carbon emissions from new energy systems.
研究领域:
可再生能源
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纳米技术
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电气工程
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环境科学
·
可持续能源系统
✓ 已验证
产品关联
DOI
高影响因子
Journal of Cleaner Production
·
2025
·
IF 10
Buju Guo,Yaowu Wang,Ruoyu Li,Yifei Li,Boxiong Zhang,Jianping Peng,Yuezhong Di,Ke Wang,Chang Wang
Scrap aluminum (Al) alloy recycling is critical for energy conservation and decreasing carbon emissions. Conventional remelting process does not remove alloying elements, severely limiting the value and applications of recycled Al. To overcome this limitation, this study develops an efficient process for recovering pure Al from scrap Al alloys via soluble anode electrolysis in a designed MgCl 2 -KCl-NaCl (MKN) molten salt system. Real-time monitoring of the electrolysis process, time-dependent characterization of cathodic deposits, and electrochemical analyses reveal a three-stage cathodic deposition mechanism in the MKN molten salt system: initial underpotential deposition of Mg 2+ transitions to co-deposition of Mg 2+ and Al 3+ , and ultimately to exclusive reduction of Al 3+ , which is driven by progressive Al 3+ accumulation. The introduction of AlCl 3 proves pivotal, simultaneously enhancing Al 3+ deposition efficiency while effectively suppressing Mg 2+ co-reduction. Systematic optimization identifies 12.5 wt% AlCl 3 addition, 500 °C, and 0.15 A/cm 2 as the ideal operational parameters, achieving recycled Al with 99.84 wt% purity. The soluble anode electrolysis process in the MKN molten salt system represents an efficient and scalable alternative to conventional remelting. The developed process is capable of producing recycled Al with purity comparable to that of primary Al while addressing critical sustainability challenges in the Al industry.
研究领域:
材料科学
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冶金学
·
电化学
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可持续技术
·
回收工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Sustainable Chemistry & Engineering
·
2025
·
IF 7.3
Jiawei Wen,Lin Li,Changjin Liu,Hongtao Liu,Dongyue Zhao,Guoyong Huang,Shengming Xu
Converting spent aluminum-based catalysts into novel CO2 methanation catalysts represents a promising strategy for simultaneous waste valorization and greenhouse gas mitigation. However, achieving a high-value utilization of spent catalysts and efficient low-temperature CO2 methanation remains a significant challenge. This study reports the synthesis of high-performance carbon sequestration Ni-M/Al2O3 catalysts (M = Mn, Mo, Co, V) with high CO2 conversion and CH4 selectivity, derived from regenerated γ-phase alumina (γ-Al2O3) support obtained from spent catalysts. The associated active metals were recovered through selective leaching and subsequently incorporated via wet impregnation. Catalytic performance was evaluated in a fixed-bed reactor under atmospheric pressure, with the 20 wt % Ni-1 wt % V catalyst demonstrating optimal activity at 300 °C, achieving 92.95% CO2 conversion and CH4 yield peak. Mechanistic investigations revealed that V doping induces HCO* co-intermediates formation and shifts the reaction pathway from reverse water–gas shift to formate route, thereby reducing the rate-determining step barrier and facilitating methanation. This study establishes an effective green and sustainable approach for spent catalyst valorization while providing fundamental insights into V-promoted low-temperature CO2 methanation, offering significant implications for carbon reduction and energy transition technologies.
研究领域:
催化化学
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环境科学
·
化学工程
·
材料科学
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碳捕集与利用（CCU）
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绿色化学
✓ 已验证
产品关联
DOI
高影响因子
BIORESOURCE TECHNOLOGY
·
2022
·
IF 11.889
Xiang Zou,Junguo He,Pengfei Zhang,Xinlei Pan,Yijie Zhong,Jie Zhang,Xuewei Wu,Biqing Li,Xia Tang,Xiannian Xiao,Heliang Pang
This study introduced the excellent improvement of enzyme cocktail (lysozyme and protease) on hydrolysis efficiency and the role of reducing carbon emission as an alternative carbon source. The best dosing method after optimization was to add four parts of lysozyme at 0 h and one part of protease at 1 h. The extracellular proteins and polysaccharides increased by 118% and 64% respectively under the optimal dosing mode. Enzyme cocktails reduced more organic matters and extended the distribution of sludge particles in the small particle size part. The enzymatic-treated sludge could reduce 21.09 kg CO 2 /t VSS if utilized to replace methanol for denitrification carbon source. Enzyme cocktails did better in enhancing both solubilization and hydrolysis than single enzymes under the optimal method. This study will provide a more integrated and comprehensive system for enzymatic pretreatment and new insight into the enzymatic pretreatment enhancing hydrolysis and reducing carbon emission.
研究领域:
环境科学
·
废水处理
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生物技术
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碳管理
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可持续工程
✓ 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）