CHINESE JOURNAL OF CHEMICAL ENGINEERING
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2015
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IF 1.098
Guo Lin,Qiang Zhuang,Qun Cui,Haiyan Wang,Huqing Yao
Co-crystalline zeolite FAU/LTA-0 was synthesized by hydrothermal method from lithium slag. To make the most of excess silicon and alkali sources in mother liquid derived from FAU/LTA-0, zeolite FAU/LTA-1b was synthesized in the same method with the use of mother liquid by adding a certain amount of aluminum source. Influences of different adding ways of aluminum source and recycling dosages of mother liquid on synthesis of zeolites FAU/LTA with mother liquid were investigated. The phase, microstructure and thermostability of FAU/LTA-0 and FAU/LTA-1b were characterized by XRD , SEM and TG-DTA. The calcium and magnesium cation exchange capacities (CECs) of the zeolites were determined. The results have shown that co-crystalline zeolite can be synthesized with the use of mother liquid by adding aluminum source after 2 h of reaction. Compared with FAU/LTA-0, the crystal twinning structure of FAU/LTA-1b became weaker, the grain size was smaller, and the thermostability was better. With a lower dosage of mother liquid, the content of P-type impurity in product decreased significantly, and the content of LTA phase increased. The reuse rate of mother liquid can reach 48%. The CECs of FAU/LTA-1b-150 can reach 343 mg CaCO 3 ·g − 1 and 180 mg MgCO 3 ·g − 1 , showing more excellent adsorption capacities than FAU/LTA-0 and commercial zeolite 4A. The full recycling use of mother liquid to synthesize zeolite FAU/LTA which can be applied for detergent not only improves resource utilization but also reduces production cost.
研究领域:
材料科学
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环境工程
✓ 已验证
DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2025
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IF 4.7
Yue Jin,Yi Chen,Dayu Zhou,Li Wu,Haolan Zhang,Jinchuan Gu
This study converted lithium slag (LS) into a zeolite photocatalyst (LZ) via a one-step hydrothermal method, achieving the ultrafast ultraviolet (UV) photocatalytic degradation of tetracycline (TC). The TC adsorption capacity of LZ (20.35 %) was significantly enhanced by 17.84 % compared to that of LS (2.51 %), which was attributed to a more extensive specific surface area, which increased by approximately 42.29 m 2 /g. The LZ displayed a degradation rate of 68.35 % within 3 min at UV light of 365 nm and a high rate constant of 0.3620 min −1 , which was 46.95–64.69 % (0.3569–0.3615 min −1 ) higher than LZ or UV alone, respectively. The underlying mechanism was attributed to •O₂ − / h + -dominated oxidation and significantly enhanced photoelectric separation efficiency. In addition, the LZ/UV system also demonstrated stable photocatalytic capacity and high practicality. This photocatalyst shows promise for domestic sewage treatment, providing a sustainable, efficient solution for waste resource utilization.
研究领域:
环境科学
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材料科学
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化学工程
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光催化
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废水处理
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可持续发展
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无机非金属材料
✓ 已验证
产品关联
DOI
高影响因子
Environmental Technology & Innovation
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2024
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IF 6.7
Yi Chen,Haolan Zhang,Siyu Hu,Jiaxin Zhang,Shiruo Zhang,Qing He,Qingyue Luo,Jinchuan Gu
Iron is the most suitable candidate for activating peroxymonosulfate (PMS) for organic degradation. To realize the effective separation and recycling of iron catalysts, it is urgent to explore a low-cost and excellent supporter. In this study, a zeolite catalyst (CAN) with both supporter and catalyst functions was synthesized in one step using lithium slag (LS, containing iron), and used to degrade tetracycline (TC) wastewater. The results showed that the electron transfer of iron and sulfur in CAN promotes the decomposition of PMS. The CAN/PMS system exhibited great removal efficiency (89.5 %, 0.083 min −1 ) and relatively lower activation energy (15.31 kJ/mol) toward TC. And • O 2 - plays a crucial role in the degradation. The CAN also represented great catalytic stability and reusability. This study revealed a new approach for the synthesis of high efficiency and low-cost catalysts and the tetracycline degradation.
研究领域:
环境科学
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化学工程
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催化
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水处理
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
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2025
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IF 5.6
Haojun Jiang,Qilong Liao,Yibo Zhou,Laibao Liu,Fu Wang,Hanzhen Zhu,Yong Dan,Peng Zhao,Xianpan Shi
With the rapid development of the lithium battery industry, the resource utilization of lithium slag (LS) has become an urgent issue. Porous ceramic supports are fabricated herein using LS and α-Al 2 O 3 as the primary raw materials, with cornstarch serving as a pore-forming agent. The effects of raw material composition and sintering temperature on the structure and performance of the supports are systematically investigated. The optimal performance is achieved with an LS to α-Al 2 O 3 mass ratio of 6:4, a cornstarch content of 3.0 wt%, and a sintering temperature of 1200 °C. Under these conditions, the ceramic support exhibits an open porosity of 39.0 %, an average pore size of 0.66 μm, and a flexural strength of 40.9 MPa. At a filtration pressure of 0.52 bar, the water flux reaches 8029 L/(m 2 h bar) and the support shows excellent resistance to acidic and alkaline conditions. The turbidity of tap water decreased from 0.53 to 0.28 NTU after filtration, indicating that the ceramic support effectively removed larger suspended particles and improved the quality of the effluent. This study therefore provides a novel approach for the resourceful utilization of LS and offers a cost-effective solution for water treatment.
研究领域:
材料科学
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陶瓷
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环境工程
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废弃物资源化利用
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水处理
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）