Laisheng Li

发表

Interfacial engineering of 2D/2D MXene heterostructures: face-to-face contact for augmented photodegradation of amoxicillin

Dingxin Xu, Yuhao Ma, Jing Wang, 2021 .

Synthesis of CeOx@SiO2 with tandem effect of mass transfer and activation for enhancing sulfanilamide degradation with ozone

Jinxin Xie, Hao Chen, Yan-Ran Lv, 2021 .

Understanding photoelectrocatalytic degradation of tetracycline over three-dimensional coral-like ZnO/BiVO4 nanocomposite

Y. Ng, Jing Wang, Weirui Chen, 2021 .

Electrochemical double-layer capacitor performance of novel carbons derived from SAPO zeolite templates

Zhiping Luo, Qiuyun Zhang, Hongyu Chen, 2012 .

Reducing DBPs formation in chlorination of Br-containing Diclofenac via Fe-Cu-MCM-41/O3 peroxidation: Efficiency, characterization DBPs precursors and mechanism

Dan Wu, Weirui Chen, Xukai Li, 2018 .

The effects of surface modification on the supercapacitive behaviors of novel mesoporous carbon derived from rod-like hydroxyapatite template

Zhiping Luo, Qiuyun Zhang, Hongyu Chen, 2013 .

Photocatalysis of p-chlorobenzoic acid in aqueous solution under irradiation of 254 nm and 185 nm UV light.

Pengyi Zhang, Laisheng Li, Wan-peng Zhu, 2004, Water research.

Photocatalytic Ozonation of Dimethyl Phthalate over TiO2 Prepared by a Hydrothermal Method

Qiuyun Zhang, Laisheng Li, Y. Jing, 2010, 2010 4th International Conference on Bioinformatics and Biomedical Engineering.

Efficient removal of 2,2',4,4'-tetrabromodiphenyl ether with a Z-scheme Cu2O-(rGO-TiO2) photocatalyst under sunlight irradiation.

Jinxin Xie, Pengfei Xia, Jing Wang, 2020, Chemosphere.

Advanced and green ozonation process for removal of clofibric acid in water system: Preparation and mechanism analysis of efficient copper-substituted MCM-48

Zhe Hu, F. Gu, Weirui Chen, 2019, Separation and Purification Technology.

Synthesis of MnOx/SBA-15 for Norfloxacin degradation by catalytic ozonation

Weirui Chen, Xukai Li, Laisheng Li, 2017 .

The Mechanism of Synergistic Effect on Electron Transfer over Co-Ce/MCM-48 during Ozonation of Pharmaceuticals in Water.

H. Wu, F. Gu, Huan He, 2019, ACS applied materials & interfaces.

One-pot solvothermal synthesis of three-dimensional (3D) BiOI/BiOCl composites with enhanced visible-light photocatalytic activities for the degradation of bisphenol-A.

J. Nan, Xiaoxi Zuo, Xin Xiao, 2012, Journal of hazardous materials.

Efficient catalytic ozonation of diclofenac by three-dimensional iron (Fe)-doped SBA-16 mesoporous structures.

Jiaxin Mu, Jing Wang, Weirui Chen, 2020, Journal of colloid and interface science.

Comparison of AC/O3-BAC and O3-BAC processes for removing organic pollutants in secondary effluent.

Pengyi Zhang, Laisheng Li, Zulin Zhang, 2006, Chemosphere.

Oxygen-vacancy-embedded 2D/2D NiFe-LDH/MXene Schottky heterojunction for boosted photodegradation of norfloxacin

Dingxin Xu, Yuhao Ma, Jing Wang, 2022, Applied Surface Science.

The relation of interface electron transfer and PMS activation by the H-bonding interaction between composite metal and MCM-48 during sulfamethazine ozonation

Jun Huang, Xukai Li, Laisheng Li, 2020 .

Synthesis of single atom cobalt dispersed on 2D carbon nanoplate and degradation of acetaminophen by peroxymonosulfate activation

D. Xia, Weirui Chen, Laisheng Li, 2022 .

Catalytic Ozonation of Oxalic Acid in the Presence of Fe2O3-Loaded Activated Carbon

Weirui Chen, Xukai Li, Laisheng Li, 2018 .

Relationship between the structure of Fe-MCM-48 and its activity in catalytic ozonation for diclofenac mineralization.

Weirui Chen, Yiming Tang, Xukai Li, 2018, Chemosphere.

Efficient degradation of perfluorooctanoic acid (PFOA) by photocatalytic ozonation

Xukai Li, Laisheng Li, Xi Wang, 2016 .

Catalytic Ozonation of Organics in Reverse Osmosis Concentrate with Catalysts Based on Activated Carbon

Laisheng Li, Jianbing Wang, Can He, 2019, Molecules.

Catalytic ozonation of 2,4-dichlorophenoxyacetic acid over novel Fe–Ni/AC

Qiuyun Zhang, Xianghong Lü, Lixuan Zeng, 2015 .

Oxygen vacancies and Lewis sites activating O3/H2O2 at wide pH range via surface electron transfer over CeOx@SiO2 for nitrobenzene mineralization.

Jinxin Xie, Weirui Chen, Xukai Li, 2020, Journal of hazardous materials.

Activity assessment of direct synthesized Fe-SBA-15 for catalytic ozonation of oxalic acid

Weirui Chen, Xukai Li, Laisheng Li, 2016 .

Unraveling influence of metal species on norfloxacin removal by mesoporous metallic silicon adsorbent

Qiuyun Zhang, Lin Lin, Weirui Chen, 2020, Environmental Science and Pollution Research.

Equilibrium, kinetics and thermodynamic studies for sorption of chlorobenzenes on CTMAB modified bentonite and kaolinite.

Qiuyun Zhang, Laisheng Li, Yue-hong Shu, 2010, Journal of hazardous materials.

Microwave-assisted synthesis of hierarchical Bi7O9I3 microsheets for efficient photocatalytic degradation of bisphenol-A under visible light irradiation

J. Nan, Xiaoxi Zuo, Xin Xiao, 2012 .

High performance of magnetic BiFeO3 nanoparticle-mediated photocatalytic ozonation for wastewater decontamination

P. Lu, Laisheng Li, Jialu Zhou, 2016 .

Efficient PFOA degradation by persulfate-assisted photocatalytic ozonation

Dan Wu, P. Lu, Weirui Chen, 2018, Separation and Purification Technology.

Efficient photocatalytic degradation of tetrabromodiphenyl ethers and simultaneous hydrogen production by TiO2-Cu2O composite films in N2 atmosphere: Influencing factors, kinetics and mechanism.

Zhe Hu, Xukai Li, Laisheng Li, 2017, Journal of hazardous materials.

The Correlation of Adsorption Behavior between Ciprofloxacin Hydrochloride and the Active Sites of Fe-doped MCM-41

Weirui Chen, Yiming Tang, Xukai Li, 2018, Front. Chem..

Facile one-step electrodeposition of two-dimensional nickel-iron bimetallic sulfides for efficient electrocatalytic oxygen evolution

Yuhao Ma, Jing Wang, Weirui Chen, 2021, Journal of Alloys and Compounds.

Investigation on modification of Ru/CNTs catalyst for the generation of COx-free hydrogen from ammonia

S. Yin, B. Xu, C. Au, 2004 .

Efficient mineralization of bisphenol A by photocatalytic ozonation with TiO2–graphene hybrid

Laisheng Li, B. Lan, Gaozu Liao, 2016 .

Mineralization of salicylic acid via catalytic ozonation with Fe-Cu@SiO2 core-shell catalyst: A two-stage first order reaction.

Jun Huang, Weirui Chen, Yiming Tang, 2019, Chemosphere.

Efficient adsorption of Norfloxacin by Fe-MCM-41 molecular sieves: Kinetic, isotherm and thermodynamic studies

Weirui Chen, Xukai Li, Laisheng Li, 2015 .

Influence of the surface hydroxyl groups of MnOx/SBA-15 on heterogeneous catalytic ozonation of oxalic acid

K. S. Hui, Xiaoting Hong, Laisheng Li, 2014 .

Enhancing catalytic ozonation activity of MCM-41 via one-step incorporating fluorine and iron: The interfacial reaction induced by hydrophobic sites and lewis acid sites.

Xingmei Guo, Dongpo Liu, Mu-Rong Lin, 2022, Chemosphere.

Effective mineralization of Diclofenac by catalytic ozonation using Fe-MCM-41 catalyst

Weirui Chen, Xukai Li, Laisheng Li, 2016 .

Mechanism for enhanced degradation of clofibric acid in aqueous by catalytic ozonation over MnOx/SBA-15.

Laisheng Li, Qiangqiang Sun, Huihua Yan, 2015, Journal of hazardous materials.

Aqueous arsenic (As) and antimony (Sb) removal by potassium ferrate

Yuan Kang, Laisheng Li, Xi Wang, 2016 .

Enhanced photoelectrocatalytic degradation of tetrabromobisphenol a from tip-decorated ZnO nanorod electrode with Bi2S3 nanoparticles

Qiuyun Zhang, Zexiao Zheng, Yiming Tang, 2021 .

Composite Si-O-metal network catalysts with uneven electron distribution: Enhanced activity and electron transfer for catalytic ozonation of carbamazepine

F. Gu, Jing Wang, Yiming Tang, 2020 .

Photocatalytic degradation of phenols in aqueous solution under irradiation of 254 and 185 nm UV light

Pengyi Zhang, Laisheng Li, Wan-peng Zhu, 2004 .

Engineering of Bi2O2CO3/Ti3C2Tx heterojunctions co-embedded with surface and interface oxygen vacancies for boosted photocatalytic degradation of levofloxacin

Ling Zhang, Jing Wang, Weirui Chen, 2022, Chemical Engineering Journal.

Fast mineralization of acetaminophen by highly dispersed Ag-g-C3N4 hybrid assisted photocatalytic ozonation

Laisheng Li, Gaozu Liao, Peng Xu, 2019, Separation and Purification Technology.

Visible-light-driven photoelectrocatalytic activation of chloride by nanoporous MoS2@BiVO4 photoanode for enhanced degradation of bisphenol A.

Zexiao Zheng, Y. Ng, Jing Wang, 2021, Chemosphere.

Excellent performance of ordered Ag-g-C3N4/SBA-15 for photocatalytic ozonation of oxalic acid under simulated solar light irradiation

Yang Liu, Laisheng Li, Gaozu Liao, 2017 .

Enhanced photocatalytic ozonation of organics by g-C₃N ₄ under visible light irradiation.

Laisheng Li, B. Lan, Gaozu Liao, 2014, Journal of hazardous materials.

Bioaccessibility of polychlorinated biphenyls in workplace dust and its implication for risk assessment.

Yuan Kang, M. Wong, Y. Man, 2013, Chemosphere.

The mechanism of Metal-H2O2 complex immobilized on MCM-48 and enhanced electron transfer for effective peroxone ozonation of sulfamethazine

Jun Huang, Jing Wang, Xukai Li, 2021 .

A study on the adsorption behaviors of three hydrophobic quinolones by ordered mesoporous CMK-3.

Xin Li, Yuxi Wu, Jing Wang, 2022, Chemosphere.

Ce/SBA-15 as a heterogeneous ozonation catalyst for efficient mineralization of dimethyl phthalate

Qiuyun Zhang, P. Lu, Laisheng Li, 2013 .

Catalytic activity of Fe/SBA-15 for ozonation of dimethyl phthalate in aqueous solution

Qiuyun Zhang, Dayi Deng, R. Huang, 2011 .

MoS2 decorated CdS hybrid heterojunction for enhanced photoelectrocatalytic performance under visible light irradiation.

Zexiao Zheng, Yiming Tang, Laisheng Li, 2019, Journal of colloid and interface science.

Photochemical growth of cadmium-rich CdS nanotubes at the air–water interface and their use in photocatalysis

F. Sun, Jimmy C. Yu, Yuying Huang, 2009 .

Dramatic enhancement of mineralization capability for ozone/peroxymonosulfate process by single atom Co/CMK-3 catalyst

D. Xia, Zhanjiang Yu, Jing Wang, 2022, Separation and Purification Technology.

Efficient photocatalytic debromination of 2,2',4,4'-tetrabromodiphenyl ether by Ag-loaded CdS particles under visible light.

Zhe Hu, Xukai Li, Laisheng Li, 2019, Chemosphere.

A comprehensive review on metal based active sites and their interaction with O3 during heterogeneous catalytic ozonation process: Types, regulation and authentication.

Jing Wang, Weirui Chen, Xukai Li, 2022, Journal of hazardous materials.

Preparation of PU modified PVDF antifouling membrane and its hydrophilic performance

Qiuyun Zhang, Li Guo, Xianghong Lü, 2016 .

Activation of peroxymonosulfate for degrading ibuprofen via single atom Cu anchored by carbon skeleton and chlorine atom: The radical and non-radical pathways.

Jing Wang, Weirui Chen, Xukai Li, 2022, The Science of the total environment.

Electro-catalytic activity of CeOx modified graphite felt for carbamazepine degradation via E-peroxone process

Jinxin Xie, Xinyu Wang, Weirui Chen, 2021, Frontiers of Environmental Science & Engineering.

Utilization of diatomite/chitosan–Fe (III) composite for the removal of anionic azo dyes from wastewater: Equilibrium, kinetics and thermodynamics

Chenggang Wang, Xiaoming Yan, Laisheng Li, 2015 .

Photochemical growth of nanoporous SnO2 at the air–water interface and its high photocatalytic activity

F. Sun, Hongyu Chen, Jimmy C. Yu, 2010 .

Application of Mn/MCM-41 as an adsorbent to remove methyl blue from aqueous solution.

Yuan Kang, Laisheng Li, Qiangqiang Sun, 2014, Journal of colloid and interface science.

Facile Regulation of Lewis Sites and 3d Mesoporous Channel within Ce-Sba-15 for Catalytic Ozonation of Clofibric Acid

Jing Wang, Weirui Chen, Yiming Tang, 2022, SSRN Electronic Journal.

Enhanced mineralization of oxalate by heterogeneous peroxone: The interfacial reaction on the core-shell CeOx@SiO2

Weirui Chen, Yiming Tang, Xukai Li, 2020 .

Mechanism insight of pollutant degradation and bromate inhibition by Fe-Cu-MCM-41 catalyzed ozonation.

Dan Wu, Weirui Chen, Yiming Tang, 2018, Journal of hazardous materials.

pH-insusceptible cobalt-manganese immobilizing mesoporous siliceous MCM-41 catalyst for ozonation of dimethyl phthalate.

Yiming Tang, Laisheng Li, Zhaoqi Pan, 2017, Journal of colloid and interface science.

Effective catalytic ozonation for oxalic acid degradation with bimetallic Fe‐Cu‐MCM‐41: operation parameters and mechanism

Meiqi Liu, Weirui Chen, Xukai Li, 2017 .

Mechanism insight of PFOA degradation by ZnO assisted-photocatalytic ozonation: Efficiency and intermediates.

Dan Wu, P. Lu, Weirui Chen, 2017, Chemosphere.

Concentrations, Sources, and Risk Assessment of Polychlorinated Biphenyls in Vegetables Near a Waste-Incinerator Site, South China

D. Shao, Yuan Kang, Qiuyun Zhang, 2014, Archives of Environmental Contamination and Toxicology.

AC/O3-BAC processes for removing refractory and hazardous pollutants in raw water.

Pengyi Zhang, Qiuyun Zhang, Laisheng Li, 2006, Journal of hazardous materials.

Comparison of O3-BAC, UV/O3-BAC and TiO2/UV/O3-BAC processes for removing organic pollutants in secondary effluents

Pengyi Zhang, Laisheng Li, Zulin Zhang, 2005 .

Characterization and reactivity of cerium loaded MCM-41 for p-chlorobenzoic acid mineralization with ozone

Qiuyun Zhang, Laisheng Li, Xi Wang, 2013 .

Coupling photocatalysis with ozonation for enhanced degradation of Atenolol by Ag-TiO2 micro-tube

Yanhua Xie, Laisheng Li, Gaozu Liao, 2016 .

Synthesis of cerium-doped MCM-41 for ozonation of p-chlorobenzoic acid in aqueous solution

Qiuyun Zhang, Xukai Li, Laisheng Li, 2012 .

Synthesis and characterization of Ni-MCM-41 for methyl blue adsorption

Qiuyun Zhang, Laisheng Li, Qiangqiang Sun, 2015 .

Application of amine-functionalized MCM-41 modified ultrafiltration membrane to remove chromium (VI) and copper (II)

Xiaoming Yan, W. Du, Laisheng Li, 2015 .

Catalytic ozonation of dimethyl phthalate over cerium supported on activated carbon.

Qiuyun Zhang, P. Lu, F. Sun, 2009, Journal of Hazardous Materials.

Heterogeneous catalytic ozonation of clofibric acid using Ce/MCM-48: Preparation, reaction mechanism, comparison with Ce/MCM-41.

Zhe Hu, Weirui Chen, Yiming Tang, 2017, Journal of colloid and interface science.

Mineralization of Para-Chlorobenzoic Acid in Water by Cobalt-Incorporated MCM-41 Catalyzed Ozonation

Laisheng Li, Xi Wang, B. Lan, 2015 .

Catalytic ozonation of p-chlorobenzoic acid in aqueous solution using Fe-MCM-41 as catalyst

Qiuyun Zhang, R. Huang, Laisheng Li, 2013 .

Catalytic ozonation of p-chlorobenzoic acid over MCM-41 and Fe loaded MCM-41

Qiuyun Zhang, R. Huang, Laisheng Li, 2012 .

Photocatalytic ozonation of dibutyl phthalate over TiO2 film

Pengyi Zhang, Le Chen, Laisheng Li, 2005 .

Insights into the Photothermal Conversion of 2D MXene Nanomaterials: Synthesis, Mechanism, and Applications

Dingxin Xu, Jing Wang, Laisheng Li, 2020, Advanced Functional Materials.

Catalytic Ozonation for the Degradation of P-Chlorobenzoic Acid in Aqueous Solution by Ni Supported Activated Carbon

Qiuyun Zhang, R. Huang, Xukai Li, 2010, 2010 4th International Conference on Bioinformatics and Biomedical Engineering.

Daphnia magna may serve as a powerful tool in screening endocrine disruption chemicals (EDCs).

Yuan Kang, Qiuyun Zhang, Lixuan Zeng, 2014, Environmental science & technology.

Oxygen-rich bismuth oxyhalides: generalized one-pot synthesis, band structures and visible-light photocatalytic properties

J. Nan, Xiaoxi Zuo, Xin Xiao, 2012 .

Enhanced photocatalytic degradation of ciprofloxacin by heterostructured BiOCl/Ti3C2Tx MXene nanocomposites

Jing Wang, Weirui Chen, Yiming Tang, 2023, Journal of Alloys and Compounds.

Highly efficient degradation of perfluorooctanoic acid: An integrated photo-electrocatalytic ozonation and mechanism study

Jing Wang, Yiming Tang, Xukai Li, 2020 .

2D MXene Nanomaterials: Insights into the Photothermal Conversion of 2D MXene Nanomaterials: Synthesis, Mechanism, and Applications (Adv. Funct. Mater. 47/2020)

Dingxin Xu, Jing Wang, Laisheng Li, 2020 .

Efficient removal of TBBPA with a Z-scheme BiVO4-(rGO-Cu2O) photocatalyst under sunlight irradiation.

Y. Li, Zijun Xiao, Jing Wang, 2022, Chemosphere.

Photocatalytic oxidation and ozonation of catechol over carbon-black-modified nano-TiO2 thin films supported on Al sheet.

Pengyi Zhang, Wenya Han, Laisheng Li, 2003, Water research.

Efficient degradation of para-chlorobenzoic acid in water by catalytic ozonation with La–Ce–MCM-41

Laisheng Li, Zhaoqi Pan, Junyu Zeng, 2016, Journal of Porous Materials.

Catalytic Ozonation of Ciprofloxacin over Cerium Oxide Modified SBA-15 and Toxicity Assessment towards E. coli

Weirui Chen, Yiming Tang, Xukai Li, 2018 .

Role of SiF groups in enhancing interfacial reaction of Fe-MCM-41 for pollutant removal with ozone.

Jinxin Xie, Jun Huang, Weirui Chen, 2020, Journal of hazardous materials.

Flexible construct of N vacancies and hydrophobic sites on g-C3N4 by F doping and their contribution to PFOA degradation in photocatalytic ozonation.

Jing Wang, Weirui Chen, Yiming Tang, 2022, Journal of hazardous materials.

Ternary CdS-MoS2 coated ZnO nanobrush photoelectrode for one-dimensional acceleration of charge separation upon visible light illumination

Zexiao Zheng, Yiming Tang, Xukai Li, 2019, Chemical Engineering Journal.

UV/O3-BAC process for removing organic pollutants in secondary effluents

Pengyi Zhang, Qiuyun Zhang, P. Lu, 2007 .

Photocatalytic ozonation of oxalic acid by g-C3N4/graphene composites under simulated solar irradiation

P. Lu, Laisheng Li, Gaozu Liao, 2016 .

Fabrication of a Cu2O/Au/TiO2 composite film for efficient photocatalytic hydrogen production from aqueous solution of methanol and glucose

Zhe Hu, Laisheng Li, Xi Wang, 2017 .

Photoelectrocatalytic degradation of amoxicillin over quaternary ZnO/ZnSe/CdSe/MoS2 hierarchical nanorods

Zexiao Zheng, Yiming Tang, Xukai Li, 2019, International Journal of Hydrogen Energy.

Pulsed Electrodeposition of Co3 O4 Nanocrystals on One-Dimensional ZnO Scaffolds for Enhanced Electrochemical Water Oxidation.

Cui Ying Toe, R. Amal, Xunyu Lu, 2018, ChemPlusChem.

Efficient catalytic ozonation of bisphenol A by three-dimensional mesoporous CeOx-loaded SBA-16.

Jiaxin Mu, Jing Wang, Weirui Chen, 2021, Chemosphere.

Electro-catalytic activity of CeOx modified graphite felt for carbamazepine degradation via E-peroxone process

Xinyu Wang, Weirui Chen, Yiming Tang, 2021, Frontiers of Environmental Science & Engineering.

Compatibility of chelators with permanganate for chelator-enhanced permanganate-based ISCO remediation of chlorinated ethenes DNAPLs

Dayi Deng, Laisheng Li, Libin Peng, 2020 .

Enhancing water purification through F and Zn-modified Fe-MCM-41 catalytic ozonation.

Dongpo Liu, Jing Wang, Weirui Chen, 2023, Journal of hazardous materials.

Unravelling the facets-dependent behavior among H2O2, O3 and oxygen vacancies on CeOx and the promotion of peroxone reaction at under acidic conditions

Jing Wang, Weirui Chen, Yiming Tang, 2021, Environmental Science: Nano.

Mechanism insight of PFOA degradation by ZnO assisted-photocatalytic ozonation: Efficiency and intermediates.

Dan Wu, P. Lu, Weirui Chen, 2017, Chemosphere.

One-pot solvothermal synthesis of three-dimensional (3D) BiOI/BiOCl composites with enhanced visible-light photocatalytic activities for the degradation of bisphenol-A.

J. Nan, Xiaoxi Zuo, Xin Xiao, 2012, Journal of hazardous materials.

Photocatalytic Ozonation of Dimetyl Phthalate with TiO2 Prepared by a Hydrothermal Method

Qiuyun Zhang, P. Lu, Xianghong Lü, 2011 .

Catalytic ozonation of p-chlorobenzoic acid by activated carbon and nickel supported activated carbon prepared from petroleum coke.

Qiuyun Zhang, P. Lu, F. Sun, 2009, Journal of hazardous materials.

Mechanism for enhanced degradation of clofibric acid in aqueous by catalytic ozonation over MnOx/SBA-15.

Laisheng Li, Qiangqiang Sun, Huihua Yan, 2015, Journal of hazardous materials.

Degradation of Oxalic Acid and Bisphenol A by Photocatalytic Ozonation with g-C3N4 Nanosheet under Simulated Solar Irradiation

Laisheng Li, Chenchen Li, B. Lan, 2016 .

The regulation of electron distribution on Fe Lewis acidic sites within silicon skeleton and its contribution to Ketoprofen ozonation

Mu-Rong Lin, Jing Wang, Weirui Chen, 2023, Separation and Purification Technology.

BiVO4 modifying with cobalt-phosphate cluster cocatalyst for persulfate assisted photoelectrocatalytic degradation of tetracycline

Jing Wang, Yiming Tang, Laisheng Li, 2023, Molecular Catalysis.

C vacancy and F decorated g-C3N4 for boosting photocatalytic ozonation of sodium p-perfluorinated nonoxybenzenesulfonate

Liying Bin, Jing Wang, Weirui Chen, 2024, Chemical Engineering Journal.

Development of heterogeneous O3/peroxides and O3/light hybrid techniques in water purification

Liying Bin, Jing Wang, Weirui Chen, 2022, Separation and Purification Technology.