![](https://scdn.x-mol.com/css/images/icon-new-link.png)
样式: 排序: IF: - GO 导出 标记为已读
-
3D spacer fabric structured airflow channel for enhanced solar desalination with efficient multi-energy harvesting Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-18 Can Ge, Duo Xu, Xiao Feng, Heng Du, Ze Chen, Hui Lin Ong, Chong Gao, Guilong Yan, Jian Fang
Solar steam generation (SSG) is a sustainable way to drive seawater desalination and wastewater purification with green environmental energies including solar radiation, ambient heat, and airflow. Airflow is ubiquitous in outdoor environments, however, the utilization of airflow for accelerated evaporation through structure engineering remains unclear. Herein, environmental energies are efficiently
-
Antibiotic oxidation and fouling control of ceramic microfiltration membrane through effective heterogeneous electro-Fenton process based on nitrogen-doped carbon nanotubes and Cu-Fe bimetallic oxides Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-15 Zixin Zhang, Guohe Huang, Yongping Li, Yao Yao, Peng Zhang, Xiujuan Chen, Shaojie Ren, Yifei Luo, Yuanzheng Zhang
-
Pulsed electric field-assisted extraction techniques for obtaining vegetable oils and essential oils: Recent progress and opportunities for the food industry Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-15 Lucas Previtali Ferraz, Eric Keven Silva
Vegetable oils and essential oils are widely used products for their nutritional, sensory, and therapeutic properties. The extraction of these oils is a fundamental process in the manufacturing sector. In this regard, the primary goal is to establish the best conditions for obtaining higher yields while maintaining or even enhancing the sensory and functional quality of these products. In this context
-
N, S-codoped porous biochar derived from bagasse-based polycondensate for high-performance CO2 capture and supercapacitor Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-15 Ge He, Xiaofang Yuan, Yuan Wang, Murat Yilmaz, Ji Li, Shaojun Yuan
-
Efficiency and mechanism of high surface area mesoporous nanocast NC-LaCoO3 for activating peroxymonosulfate to degrade atrazine in water Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-15 Shahzad Afzal, Andleeb Mehmood, Lingyue Jin, Ke Pan, Munir Ahmad, Muhammad Javid, Muhammad Ikram, Ming Zhang, LiangKai Liu
-
Efficient removal of U(VI) by graphene-based electrode modified with amidoxime: Performance and mechanism Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Kexin Shao, Guangming Xu, Xindai Li, Xinyao Liu, Juncheng Han, Haotian Yang, Guanying Wang, Yanqing Guo, Junfeng Dou
-
Boosting acid gas removal from hydrocarbons: Ligand-modified titanium fillers in hybrid membranes Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Nadia Hartini Suhaimi, Yin Fong Yeong, Norwahyu Jusoh, Boon Kar Yap
-
Preparation of active zinc oxide from zinc-containing dust and synergistic recovery process of valuable elements Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Yan Li, Liang Liu, Jingsong Wang, Xuefeng She, Yaqiang Yuan, Guang Wang, Haibin Zuo, Qingguo Xue
-
2-Hydroxypropyl-diethylenetriamine (HPDETA)-based nonaqueous absorbents for energy-efficient CO2 capture with high stability and low corrosivity Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Yan Wu, Jun Qian, Yao Jiang, Shaojun Jia, Xin Xu, Peng Cui
Nonaqueous amine absorbents have received considerable attention currently due to their energy efficiency and noncorrosiveness for CO capture. In this study, the new nonaqueous amine absorbents were developed by dissolving 2-hydroxypropyl-diethylenetriamine (HPDETA) in various organic solvents. The experimental results demonstrated that the obtained HPDETA-based nonaqueous amine absorbents have improved
-
Micro/nanofluid-based carbon-negative process for capturing CO2 from low-carbon flue gas to produce soda ash: Effects and enhancement mechanisms Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Fan Yuewei, Lu Chen, Jiang Bowen, Liu Jia, Meng Haoyu, Yang Guoqiang, Zhou Zheng, Hu Xingbang, Zhang Feng, Li Lei, Zhang Zhibing
This paper presents an innovative approach aimed at the efficient capture of low-carbon flue gas with a CO concentration of 25%–30% on a large scale and its subsequent fixation into economically valuable soda ash. This carbon-negative process entails a novel micro/nanofluid interface system (MIS) as a principal component. To gain a better understanding of the MIS and enhance its properties, we propose
-
Experimental and theoretical investigations of zwitterionic hypercrosslinked polymers as robust catalysts for CO2 fixation under cocatalyst- and solvent-free conditions Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Han Zhang, Xinran Duan, Mingming Han, Fusheng Liu, Guojie Zhang, Kunqi Gao, Mengshuai Liu
-
Development and evaluation of a hybrid membrane condenser for water recovery from cooling tower plume Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Nurrohman, Mohammed H. Albeirutty, Hind Almisbahi, Hani Abulkhair, Eydhah Almatrafi, Abdulmohsen Alsaiari, Elias M. Salilih, Nur C. Majid, Omar Bamaga
-
Intercalation of sodium carboxymethyl cellulose with MXene membrane layer spacing regulation and monovalent/divalent ion separation Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Ruizhou Yang, Hong Wang, Junyuan Hua, Jianxin Li
-
Construction of magnetic sulfonic-functionalized hypercrosslinked polymers for efficient adsorption of azole fungicides from water Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Dongze Wang, Yaming Zhao, Qiong Jia
-
New insight into the S and N co-doped poplar biochar for efficient BPA removal via peroxymonosulfate activation: S for adsorptive removal and N for catalytic removal Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Xinyan Yu, Longhui Wang, Xianbao Shen, Ying Wu, Lijie Xu, Ying Zhang, Jiangtao Shi, Lu Gan
-
Green recycling of spent LiCoO2 cathodes using a water-based deep eutectic solvent Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Xi Wu, Zhenzhen Liu, Huaimeng Li, Zhen Fu, Guofeng Zhang, Haimin Zhang, Guozhong Wang, Yunxia Zhang
-
Bioethanol production from cassava fed-batch fermentation in pervaporation membrane bioreactor with permeate fractional condensation Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Haoji Jiang, Lu Han, Wenda Liu, Yin Zhang, Jingyun Liu, Zeyi Xiao, Senqing Fan
A new type pervaporation membrane bioreactor was developed by coupling cassava-based fed-batch fermentation and pervaporation membrane separation technology for bioethanol production. Membrane separation slowed down broth accumulation rate and mitigated ethanol product inhibition. The fermentation time, average sugar consumption rate, ethanol production and ethanol productivity were 131h, 6.6 gLh,
-
Source and characteristics of inorganic acidic gases and aerosols emission in a semiconductor plant Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Jyun-Lun Peng, Ming-Peng Yeh, Kuan-Hung Liu, Tony Chen, Tzu-Sou Chuang, Sher Ling Lee, Kuo-Lun Tung
-
Separation and recovery of elements from drainage water arising in soilless tomato cultivation − Application of electrocoagulation Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Artur Mielcarek, Karolina Kłobukowska, Barbara Kalisz, Joanna Rodziewicz, Wojciech Janczukowicz
-
Inactivation of Microcystis aeruginosa by magnetic cellulose combined with electroaggregation and electrooxidation Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Ze Zhang, Jie Sun, Jiajing Zhang, Yinhan Lin, Qiaoling Xu, Lihua Cui, Rongliang Qiu, Zhujian Huang
-
Enhanced paracetamol degradation via strong covalent coupling of Mo[sbnd]O[sbnd]C bonds in C/MoS2 nanocomposites for piezoelectric activation of peroxymonosulfate: Electron bridge and enrichment Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Wenbin Huang, Tao Zhong, Chenghua Wang, Zhong Fang, Jun Du, Huinan Zhao, Shuanghong Tian, Dong Shu, Chun He
-
Tailoring the product polarity to facilitate the controllable phase transition of a 2-(ethylamino)ethanol-based nonaqueous absorbent for energy-efficient CO2 capture: An integrated experimental and quantum simulation study Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Xiaobin Zhou, Dan Wang, Zhuo Wang, Zongqiang Zhu, Yinming Fan, Dunqiu Wang, Bihong Lv, Shengpeng Mo, Yanan Zhang, Yinian Zhu, Guohua Jing
-
A review on catalyst advances for photothermal dry reforming of methane reaction Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Xiaoyan Tian, Fagen Wang
-
Ultra-high selectivity carbon molecular sieve membrane derived from PI/SPANI blends for efficient gas separation Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Jiongcai Chen, Mingwei Cai, Zhenjing Han, Zhiyin Chen, Luxin Sun, Heng Liu, Shiyang Zhang, Tingting Cui, Yonggang Min
-
Application of swirl intensification technology in thermochemical conversion of biomass to high-value bio-oil: A review Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Xianggang Zhang, Haijun Wu, Zhen He, Lingling Xie, Yulong Chang, Ziheng Jin, Xia Jiang
-
Aerogel-based carbon capture materials: Research progress and application prospects Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Baolu Cui, Xiaoqian Ju, Haosheng Ma, Shuqian Meng, Yuxi Liu, Jingwen Wang, Dechao Wang, Zhiyuan Yang
-
Electrospun coarse modified polystyrene/carbon aerogel nanofibrous composite membrane for effective PM2.5 air filtration Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Xuying Huo, Wei Chen, Hongbo Gu
-
Preparation of magnetic ionic liquid microemulsion collector by combining simulation and experiment and study of its flotation performance Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Lin Li, Jingwei Wang, Gang Hu, Shuo Yang, Feifei Wang, Xiaofang You, Haijun Zhang, Meng He
-
In-Depth study of the adsorptive separation of glucose and xylose with alkaline and alkaline-earth exchanged faujasite zeolites by breakthrough experiments Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Wassim Ammar, Kim Larmier, Alain Methivier, Maria Manko
-
Tetracycline degradation in the system of peracetic acid activation by liquid discharge plasma Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Haixia Wu, Wei Ye, Wang Shen, Quanfa Zhao
The oxidative degradation ability of peracetic acid (PAA) for organic pollutants can be enhanced by different activation methods. This study investigated the degradation efficiency and mechanisms of tetracycline (TC) using PAA activated by liquid-phase discharge plasma. An 86.08 % degradation efficiency for TC after 60 min treatment was achieved in the Plasma/PAA system, much higher than that of the
-
Efficient activation of molecular oxygen across a broad pH range (2.5 to 11) utilizing an aluminum-based solid-phase Fenton reagent Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Jiaqi Wang, Weiyin Zhang, Shiying Yang
-
Facile peptide-mediated green synthesis of iron hexacyanocobalt nanostructures for efficient intercalative deionization and water disinfection Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Nan Li, Shaokun Chong, Shihong Dong, Ke Wang, Nian Liu, Luofeng Yu, Peng Li
-
Visible light-driven selective cleavage of Cα-Cβ or Cβ-O bond in lignin β-O-4 model into high-value aromatic chemicals over surface modified 2D g-C3N4 Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Hongzi Tan, Pengrui Zhang, Xuele Geng, Wenhao Zhang, Feng Song, Rongrong Zhao, Keqin Zhang, Hongyou Cui, Xuxing Chen, Jian-Ping Zou
-
Green and efficient removal of arsenic and recovery of tin from hazardous waste tin refined copper slag Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-14 Jinping Ma, Yifu Li, Bin Yang, Yang Tian, Baoqiang Xu
-
Efficient removal of Cr(VI) using recycled MgO from laterite nickel ore by fly ash doping Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-13 Liqing Zhang, Bo Li, Yonggang Wei, Haoyuan Xu
-
New insights into selective degradation of organic contaminants by Fe3+/persulfate process: Performance, mechanism, and theoretical calculations Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-11 Chun Cai, Yu Lin, Xianjun Xie, Jiaming Dong, Yixuan Lu, Siying Long, Kuo Yao, Wenwu Sun, Danna Zhou, Xiaodi Duan
-
Enhancement of sludge dewaterability using amphoteric starch-based flocculant coupled with waste synthetic fibers Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-11 Ganpei Tian, Runhao Zhang, Linhua Fan, Li Gao, Zhen Yang, Bo Bian
An amphoteric starch-based flocculant 3-chloro-2-hydroxypropyltrimethyl chloride modified carboxymethyl starch (CMSCTA) for sludge dewatering was prepared and evaluated as a potential greener and economical alternative to conventional flocculants. A novel method of combining carbon skeleton (synthetic fiber) with flocculant conditioned sludge for enhancing the sludge dewaterability was also studied
-
Turning waste into treasure: Utilizing discarded printer toner-modified wood for efficient solar water evaporation in diverse water environments Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-11 Wei Zhang, Shoushu Liu, Juzheng Liu, Erjie Huang, Rui Wang, Qiting Zuo, Lin Gong
-
Demulsification of steam-assisted gravity drainage (SAGD) emulsions under high temperature and high pressure: Effects of emulsion breaker and reverse emulsion breaker dosages Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Yueying Huang, Chenyu Qiao, Ziqian Zhao, Ying Hu, Hongbo Zeng
-
Sequential assembly enhanced selectivity on magnetic imprinted polymers for specific capture of naringin: A combination of synergistic dual sites and imprinted effect Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Shucheng Liu, Jinyu Li, Zhi Hu, Xuan Zhang, Ru Feng, Yue Wang, Ruiheng Lu, Yuheng Li, Xingchen Yan
-
High-performance ionic liquid-based membranes employed for efficient recovery of lithium Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Yunze Zhao, Huifang Xing, Jianfeng Zhang, Li Wang, Qing Liu, Congmei Chen, Huizhou Liu, Liangrong Yang
-
Stable ionic liquid/Zr-MOF co-modified silica microspheres: Facile construction strategy and promising chromatographic applications Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Jiawen Zhou, Yanjuan Liu, Yuefei Zhang, Wei Chen, Sheng Tang
-
A novel circulating film reactor for enhance degradation efficiency of tetracycline hydrochloride via an Ag-AgVO3@BiVO4/PVDF composite film under visible light irradiation Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Jian Jian, Yixiao Dan, Weijie Sun, Qing Tang, Zhengqiu Yuan, Yusheng Zhang, Xiaowen Zhang, Hu Zhou
Composite film materials have garnered significant attention in the realm of environmental remediation. An Ag-AgVO@BiVO/PVDF composite film was successfully fabricated through an ultrasound-assisted and in situ precipitation method. The porous nature of the PVDF film allows for ample space for the in-situ growth of Ag, AgVO, and BiVO, ultimately forming a stable heterostructure. The Ag-AgVO@BiVO/PVDF
-
Red mud/steel slag three-dimensional electrochemical system for the removal of organic pollutant with Na2S2O3 as electrolyte: Contribution of •OHads Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Yi Han, Mengxin Guo, Ting Shi, Zhipeng Wang, Yi Wang, Zhibing Xu, Dejin Wang, Hongcheng Gao, Zheng Peng, Haobo Hou
-
Preparation of formic acid modified industrial zero-valent iron (FA-ZVIbm) for CdII-EDTA removal: CdII capturing and self-enhanced oxidative degradation of EDTA Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Yuhang Zhang, Hao Zhang, Nuanqin Zhang, Biao Zhou, Falong Jia, Lizhi Zhang, Zhihui Ai, Xiao Liu
-
A green recyclable process for selective recovery of Li and Fe from spent lithium iron phosphate batteries by synergistic effect of deep eutectic solvent and oxygen Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Yaozhi Zhang, Bingru Wang, Fang Wang, Yasen Dai, Shuhang Ren, Yucui Hou, Weize Wu
-
Streamlining the purification of a clinical-grade oncolytic virus for therapeutic applications Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Rita P. Fernandes, Sven Göbel, Manfred Reiter, Alexander Bryan, Jennifer Altomonte, Yvonne Genzel, Cristina Peixoto
Oncolytic viruses (OV) have emerged as a promising approach to mitigate the challenges of treating solid cancers. However, the lack of established manufacturing and downstream processing (DSP) platforms combined with the high treatment doses needed for clinical use (10–10 TCID/dose), hamper the widespread success of this therapeutic concept. Here, we present an efficient and scalable GMP-compliant
-
Influence mechanism of leaching agent anions on the leaching of aluminium impurities in ionic-type rare earth ores: A DFT simulation combined with experimental verification Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Qibang Long, Huashan Yan, Hao Wu, Sen Qiu, Xiaowen Zhou, Tingsheng Qiu
-
Significant enhancement on ammonia removal by thermal/peroxymonosulfate system with bromide ion: Performance, influencing factors and mechanism Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Shuyin Zhang, Jing Zou, Lingxuan Chen, Chunhua Shen, Jian Lu, Jianlin Zhang, Hangyu Cui, Geng Huang, Jun Ma
-
Construction of graphdiyne-based photocatalysts with strong built-in electric field by loading bimetallic oxides to promote the photocatalytic hydrogen evolution activity Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Linlin Fan, Xueying Yang, Qian Xiao, Xin Guo, Zhiliang Jin
-
Enhancing the scaling resistance of corrugated polyvinylidene fluoride hydrophobic membrane in membrane distillation: Impact of CF4 plasma modification, pulse flow, and negative pressure Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-10 Jiaqi Hu, Zhangxin Wang, Tao He
Membrane distillation (MD) is an emerging technology for brine concentration, but plagued by scaling/fouling/wetting in realistic applications. There has been tremendous progress in the mitigation of scaling via chemical modification to reduce the surface energy and hydraulic operation to change flow state in feed channel. But there still lacks an undisputed cognition yet which approach outperforms
-
Thermally coupled distillation columns without vapor transfer – Current state and further needs Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-09 Anna Sophia Horsch, Mirko Skiborowski
Reducing the energy requirements is one essential pillar in the effort to reduce the carbon footprint of the energy intensive chemical industry. Thermal coupling of distillation columns and the equipment-integrated implementation in dividing wall columns can be considered a mature and established technology to reduce the energy demand of distillation sequences. Despite the widespread investigations
-
Efficient photocatalytic degradation of ethylenethiourea with zinc oxide photocatalysts: Parameters optimization, mechanism insight, exploration of degradation pathways and toxicity assessment Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-09 Qiang Luo, Changlin Sun, Zhilong Pan, Juan Zhao, Qizhou Cai
-
Fluorinated/sulfonated dual-functional three-component covalent organic polymer for adsorption of fluoroquinolones: Preparation, adsorption performance and mechanism Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-09 Yingying Kang, Yuelin Wang, Yanyan Chen, Jiwei Shen, Yinmao Wei, Chaozhan Wang
-
Design, modulation and current advances in energy and environmental applications over In2O3-based photocatalysts Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-09 Jiadong Li, Yang Qu, Yanduo Liu, Liqiang Jing
-
Interfacial oxygen vacancy engineering of double Z-scheme heterojunction Bi2MoO6/MnWO4/g-C3N4 for efficient photocatalytic degradation of iodohydrin Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-09 Jie Wu, Jingjing Xu, Mindong Chen
-
Whole-Waste synthesis of Kilogram-Scale Macropores adsorbent materials for Wide-Range oil and heavy metal removal Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-09 Wenbin Wu, Xianhong Deng, Shuangqin Tian, Shujie Wang, Yi He, Bifang Zheng, Kai Xin, Ziqin Zhou, Lihong Tang
-
Refining catalytic oxidation of volatile organic compounds over Gd-Sr-Co perovskite-based oxides fabricated via viscous mixture induction: Unveiling the crucial factors influencing catalytic activity Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-09 Jingyin Liu, Zeyao An, Weili Zhu, Wenjing Zhang, Yuwei Liu, Huifang Wu, Lizhong Liu
-
Long-lifespan and sterilizable face masks leveraging the power of light and electricity Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-09 Weiwei Zhang, Zehua Peng, Han Xia, Lang Ma, Li Qiu, Xiaodong Yan, Yongsheng Gao, Xifeng Yang, Zhengbao Yang
The rapidly evolving virus and worsening air pollution have created a huge demand for face masks. However, most commercial masks are limited in their ability of long-time filtering air particulates and killing pathogens. We here present a highly germicidal, self-charging, and long-lifespan mask based on the synergistic effect of light (photocatalysis of CuO-ZIF-8) and electricity (piezoelectricity
-
Preparation of biomass-derived porous biochar for efficient removal of iodized X-ray contrast media in water: Adsorption performance and underlying mechanism Sep. Purif. Technol. (IF 8.1) Pub Date : 2024-07-09 Qiang Tan, Zhonglin Chen, Jimin Shen, Pengwei Yan, Jing Kang, Binyuan Wang, Yizhen Cheng, Shengxin Zhao, Yang Shen, Yabin Li