1
|
Hao Y, Liu X, Zhang Y, Zhang X, Li Z, Chen X. Fine-Tuning 2D Heterogeneous Channels for Charge-Lock Enhanced Lithium Separation from Brine. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2406535. [PMID: 39234947 DOI: 10.1002/advs.202406535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2024] [Revised: 08/12/2024] [Indexed: 09/06/2024]
Abstract
The extraction of lithium (Li) from complex brines presents significant challenges due to the interference of competing ions, particularly magnesium (Mg2⁺), which complicates the selective separation process. Herein, a strategy is introduced employing charge-lock enhanced 2D heterogeneous channels for the rapid and selective uptake of Li⁺. This approach integrates porous ZnFe2O4/ZnO nanosheets into Ag+-modulated sub-nanometer interlayer channels, forming channels optimized for Li⁺ extraction. The novelty lies in the charge-lock mechanism, which selectively captures Mg2⁺ ions, thereby facilitating the effective separation of Li from Mg. This mechanism is driven by a charge transfer during the formation of ZnFe2O4/ZnO, rendering O atoms in Fe-O bonds more negatively charged. These negative charges strongly interact with the high charge density of Mg2⁺ ions, enabling the charge-locking mechanism and the targeted capture of Mg2⁺. Optimization with Ag⁺ further improves interlayer spacing, increasing ion transport rates and addressing the swelling issue typical of 2D membranes. The resultant membrane showcases high water flux (44.37 L m⁻2 h⁻¹ bar⁻¹) and an impressive 99.8% rejection of Mg2⁺ in real brine conditions, achieving a Li⁺/Mg2⁺ selectivity of 59.3, surpassing existing brine separation membranes. Additionally, this membrane demonstrates superior cyclic stability, highlighting its high potential for industrial applications.
Collapse
Affiliation(s)
- Yaxin Hao
- MOE Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou, 730000, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, P. R. China
- Institute of National Nuclear Industry, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xin Liu
- Key Laboratory of Green and High-end Utilization of Salt Lake Resources, Qinghai Engineering and Technology Research Center of Comprehensive Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, P. R. China
| | - Yaoling Zhang
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, 810008, P. R. China
| | - Xin Zhang
- MOE Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou, 730000, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, P. R. China
- Institute of National Nuclear Industry, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Zhan Li
- MOE Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou, 730000, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, P. R. China
- Institute of National Nuclear Industry, Lanzhou University, Lanzhou, 730000, P. R. China
- School of Chemistry and Chemical Engineering, Qinghai Minzu University, Xining, 810007, P. R. China
| | - Ximeng Chen
- MOE Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou, 730000, China
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, P. R. China
- Institute of National Nuclear Industry, Lanzhou University, Lanzhou, 730000, P. R. China
| |
Collapse
|
2
|
Guo Q, Yan C, Huang Z, Liu Y, Cheng D, Lu C, Ran J, Yang Y. g-C 3N 4 nanosheet supported NiCo 2O 4 nanoparticles for boosting degradation of tetracycline under visible light and ultrasonic irradiation. NANOSCALE 2024; 16:12957-12966. [PMID: 38898817 DOI: 10.1039/d4nr01611d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
The doping of semiconductor materials through some facile and appropriate methods holds significant promise in enhancing the catalytic performance of catalysts. Herein, NiCo2O4/g-C3N4 composite catalysts were synthesized via a high-energy ball milling method. The microstructure and physicochemical characterization of the as-prepared composites confirmed the successful loading of NiCo2O4 nanoparticles onto the g-C3N4 nanosheets. The NiCo2O4/g-C3N4 composites showed excellent catalytic effect under visible light/ultrasonic irradiation, and the efficiency of tetracycline hydrochloride (TCH) degradation reached 90% within 15 min. The optical properties of g-C3N4 nanosheets were improved by doping, and the diffusion of active materials and carrier migration rate were improved by ultrasonic assistance. Possible catalytic mechanisms and potential pathways of the NiCo2O4/g-C3N4 composites for the degradation of TCH triggered by visible light/ultrasonic irradiation were proposed. This study provides a new strategy for energy-assisted photocatalytic degradation of organic pollutants.
Collapse
Affiliation(s)
- Qingfeng Guo
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
- Engineering Research Center for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan Textile University, Wuhan 430200, China
| | - Changwang Yan
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
| | - Zhenqian Huang
- Hubei Key Laboratory of Biomass Fiber and Ecological Dyeing and Finishing, Wuhan Textile University, Wuhan 430020, China.
| | - Yujie Liu
- Hubei Key Laboratory of Biomass Fiber and Ecological Dyeing and Finishing, Wuhan Textile University, Wuhan 430020, China.
| | - Deshan Cheng
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
| | - Chaoyang Lu
- Qianshui (Hubei) Environmental Technology Co., Ltd, Tianmen 431700, China
| | - Jianhua Ran
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
- Hubei Key Laboratory of Biomass Fiber and Ecological Dyeing and Finishing, Wuhan Textile University, Wuhan 430020, China.
| | - Yingkui Yang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan 430200, China.
| |
Collapse
|
3
|
Xin Y, Wang Y, Jiang Z, Deng B, Jiang ZJ. Advances in the Removal of Organic Pollutants from Water by Photocatalytic Activation of Persulfate: Photocatalyst Modification Strategy and Reaction Mechanism. CHEMSUSCHEM 2024:e202400254. [PMID: 38743510 DOI: 10.1002/cssc.202400254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 05/14/2024] [Accepted: 05/14/2024] [Indexed: 05/16/2024]
Abstract
Environmental pollution caused by persistent organic pollutants has imposed big threats to the health of human and ecological systems. The development of efficient methods to effectively degrade and remove these persistent organic pollutants is therefore of paramount importance. Photocatalytic persulfate-based advanced oxidation technologies (PS-AOTs), which depend on the highly reactive SO4 - radicals generated by the activation of PS to degrade persistent organic pollutants, have shown great promise. This work discusses the application and modification strategies of common photocatalysts in photocatalytic PS-AOTs, and compares the degradation performance of different catalysts for pollutants. Furthermore, essential elements impacting photocatalytic PS-AOTs are discussed, including the water matrix, reaction process mechanism, pollutant degradation pathway, singlet oxygen generation, and potential PS hazards. Finally, the existing issues and future challenges of photocatalytic PS-AOTs are summarized and prospected to encourage their practical application. In particular, by providing new insights into the PS-AOTs, this review sheds light on the opportunities and challenges for the development of photocatalysts with advanced features for the PS-AOTs, which will be of great interests to promote better fundamental understanding of the PS-AOTs and their practical applications.
Collapse
Affiliation(s)
- Yue Xin
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy Materials, College of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Yongjie Wang
- Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems, Harbin Institute of Technology, Shenzhen, 518055, P. R. China
| | - Zhongqing Jiang
- Department of Physics, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Binglu Deng
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528000, P. R. China
| | - Zhong-Jie Jiang
- Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy Materials, College of Environment and Energy, South China University of Technology, Guangzhou, 510006, P. R. China
| |
Collapse
|
4
|
Liang Z, Wen J, Zhou Y, Liu T, Dong J, Zheng W, Chang C, Xiao X, Liu Q, Zheng X. Comparative investigation of BiOCl0.5X0.5 (X= F, Br, and I) heterojunctions for solar-light driven photodegradation of tetracycline hydrochloride. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|