1
|
Liu C, Crini G, Wilson LD, Balasubramanian P, Li F. Removal of contaminants present in water and wastewater by cyclodextrin-based adsorbents: A bibliometric review from 1993 to 2022. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123815. [PMID: 38508365 DOI: 10.1016/j.envpol.2024.123815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/29/2024] [Accepted: 03/16/2024] [Indexed: 03/22/2024]
Abstract
Cyclodextrin (CD), a cyclic oligosaccharide from enzymatic starch breakdown, plays a crucial role in pharmaceuticals, food, agriculture, textiles, biotechnology, chemicals, and environmental applications, including water and wastewater treatment. In this study, a statistical analysis was performed using VOSviewer and Citespace to scrutinize 2038 articles published from 1993 to 2022. The investigation unveiled a notable upsurge in pertinent articles and citation counts, with China and USA contributing the highest publication volumes. The prevailing research focus predominantly revolves around the application of CD-based materials used as adsorbents to remove conventional contaminants such as dyes and metals. The CD chemistry allows the construction of materials with various architectures, including cross-linked, grafted, hybrid or supported systems. The main adsorbents are cross-linked CD polymers, including nanosponges, fibres and hybrid composites. Additionally, research efforts are actually concentrated on the synthesis of CD-based membranes, CD@graphene oxide, and CD@TiO2. These materials are proposed as adsorbents to remove emerging pollutants. By employing bibliometric analysis, this study delivers a comprehensive retrospective review and synthesis of research concerning CD-based adsorbents for the removal of contaminants from wastewater, thereby offering valuable insights for future large-scale application of CD-based adsorption materials.
Collapse
Affiliation(s)
- Chong Liu
- Department of Chemical & Materials Engineering, University of Auckland, 0926, New Zealand
| | - Grégorio Crini
- Chrono-environment, University of Franche-Comté, 25000 Besançon, France
| | - Lee D Wilson
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Room 165 Thorvaldson Bldg., Saskatoon, SK S7N 5C9, Canada
| | | | - Fayong Li
- College of Water Resources and Architectural Engineering, Tarim University, Xinjiang 843300, China.
| |
Collapse
|
2
|
Yang Z, Sun Y, Hou Z, Yu H, Li M, Li Y, Li Y, Gao B, Xu S. Repeated fluctuation of Cu 2+ concentration during photocatalytic purification of SMZ-Cu 2+ combined pollution: Behavior, mechanism and application. JOURNAL OF HAZARDOUS MATERIALS 2023; 447:130768. [PMID: 36640508 DOI: 10.1016/j.jhazmat.2023.130768] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/25/2022] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
Although the effect of Cu2+ on antibiotic removal during photocatalytic reaction has been studied in depth, there is less known about the effect of antibiotics on Cu2+ removal. In this study, we report for the first time that, during the photocatalytic purification of sulfamerazine (SMZ) and Cu2+ combined pollution, Cu2+ concentration showed an obvious five-stage fluctuation, which was completely different from the simple promotion or inhibition reported in previous studies. By employing HPLC-MS analysis and density functional theory (DFT) calculation, the repeated fluctuation of Cu2+ concentration was found to be closely related to the SMZ degradation process, mainly resulting from solution pH drop and formation of Cu-containing intermediates which acted as sacrificial agents for Cu2+ reduction. In addition, compared with the SMZ-free system, the presence of SMZ can greatly enhance the deep removal of Cu2+ (minimum Cu2+ concentration was only 0.17 mg/L vs. 1.28 mg/L without SMZ), and there was a wide time interval to ensure the efficient recovery of Cu metal. More interestingly, the in-situ obtained Cu-decorated TiO2 photocatalyst performed well in water splitting, nitrogen fixation and bacterial sterilization. Results of this study confirmed the great potential of photocatalytic technology in purifying antibiotic-heavy metal combined pollution.
Collapse
Affiliation(s)
- Zitong Yang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Yunkai Sun
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Zexi Hou
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Haiyan Yu
- Microbial Technology Institute and State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Mingxue Li
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Yanwei Li
- Environment Research Institute, Shandong University, Qingdao 266237, China
| | - Yude Li
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Shiping Xu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China.
| |
Collapse
|
3
|
Lyu P, Li L, Huang X, Xie J, Ye J, Tian Y, Huang J, Zhu C. Ternary Ca-Mg-Al layered double-hydroxides for synergistic remediation of As, Cd, and Pb from both contaminated soil and groundwater: Characteristics, effectiveness, and immobilization mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130030. [PMID: 36170797 DOI: 10.1016/j.jhazmat.2022.130030] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/02/2022] [Accepted: 09/17/2022] [Indexed: 06/16/2023]
Abstract
Layered double hydroxides (LDH) are the cost-effective and high-efficiency materials for remediation of potentially toxic elements (PTEs) in contaminated soil and groundwater. Herein, the effectiveness and mechanisms of a ternary Ca-Mg-Al LDH (CMAL) for the synergistic remediation of As, Cd, and Pb were investigated in contaminated soils and simulative groundwaters for the first time. The immobilization efficiencies of As, Cd, and Pb in both black soil (BS) and red soil (RS) amended by CMAL at 5 wt% were all > 75%. CMAL amendment transferred more mobile As, Cd, and Pb fractions in soils to immobile species than did Ca-Al LDH and Mg-Al LDH treatments. Furthermore, using a pump-and-treat technology, 82-98% of these 3 PTEs from contaminated groundwater were successfully immobilized in both CMAL treated BS and RS top-soils. Meanwhile, leaching of Ca, Mg, and Al from CMAL was minimal indicating the material was stable. The excellent immobilization performance of CMAL for these PTEs was attributed to the coating of soil microparticles by CMAL nanosheets that allowed complexation of Ca-O-As/Cd or Mg-O-As/Cd/Pb formation, co-precipitation of Ca/Fe-As and Cd(OH)2, and formation of Ca-bridged ternary complex (FeO-Ca-As/Cd). The adverse effect of oppositive pH/Eh-dependence between As and Cd/Pb was overshadowed by these mechanisms and thus allowed As immobilization. Immobilization of As, Cd, and Pb by CMAL amendment was more favorable for RS soil due to its lower reduction potential and more participation of metal-(hydr)oxides for complexation. Overall, the ternary-LDH is a promising synergistic remediation strategy for multi-PTEs contaminated soil and groundwater.
Collapse
Affiliation(s)
- Peng Lyu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; Key Laboratory of Agro-Environment, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Lianfang Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; Key Laboratory of Agro-Environment, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Xiaoya Huang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jinni Xie
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jing Ye
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yunlong Tian
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jinli Huang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Changxiong Zhu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China; Key Laboratory of Agro-Environment, Ministry of Agriculture and Rural Affairs, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| |
Collapse
|
4
|
Enhanced carrier transport and visible light response in CA-β-CD/g-C3N4/Ag2O 2D/0D heterostructures functionalized with cyclodextrin for effective organic degradation. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-022-1193-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
5
|
Li C, Wu X, Hu J, Shan J, Zhang Z, Huang X, Liu H. Graphene-based photocatalytic nanocomposites used to treat pharmaceutical and personal care product wastewater: A review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:35657-35681. [PMID: 35257332 DOI: 10.1007/s11356-022-19469-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Photocatalytic technology has been widely studied by researchers in the field of environmental purification. This technology can not only completely convert organic pollutants into small molecules of CO2 and H2O through redox reactions but also remove metal ions and other inorganic substances from water. This article reviews the research progress of graphene-based photocatalytic nanocomposites in the treatment of wastewater. First, we elucidate the basic principles of photocatalysis, the types of graphene-based nanocomposites, and the role of graphene in photocatalysis (e.g., graphene can accelerate the separation of photon-hole pairs and increase the intensity and range of light absorption). Second, the preparation, characterization, and application of composites in wastewater are introduced. We also discuss the kinetic model of the photocatalytic degradation of pollutants. Finally, the enhancement mechanism of graphene in terms of photocatalysis is not completely clear, and graphene-based photocatalysts with high catalytic efficiency, low cost, and large-scale production have not yet appeared, so there is an urgent need for more extensive and in-depth research.
Collapse
Affiliation(s)
- Caifang Li
- Guizhou Provincial Key Laboratory for Information Systems of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China
| | - Xianliang Wu
- Guizhou Institute of Biology, Guiyang, Guizhou, 550009, China
| | - Jiwei Hu
- Guizhou Provincial Key Laboratory for Information Systems of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China
| | - Junyue Shan
- Guizhou Provincial Key Laboratory for Information Systems of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China
| | - Zhenming Zhang
- Guizhou Institute of Biology, Guiyang, Guizhou, 550009, China
| | - Xianfei Huang
- Guizhou Provincial Key Laboratory for Information Systems of Mountainous Areas and Protection of Ecological Environment, Guizhou Normal University, Guiyang, 550001, China.
| | - Huijuan Liu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, 550025, China
| |
Collapse
|
6
|
Diao ZH, Dong FX, Yan L, Chen ZL, Guo PR, Xia XJ, Chu W. A new insight on enhanced Pb(II) removal by sludge biochar catalyst coupling with ultrasound irradiation and its synergism with phenol removal. CHEMOSPHERE 2021; 263:128287. [PMID: 33297231 DOI: 10.1016/j.chemosphere.2020.128287] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/31/2020] [Accepted: 09/05/2020] [Indexed: 06/12/2023]
Abstract
The applicability of sludge biochar catalyst (SBC) coupling with ultrasound (US) irradiation for the simultaneous removal of Pb(II) and phenol was firstly investigated in this study. Results indicate that Pb(II) removal of SBC/US process was superior to that of SBC without US. The inhibitory order of the coexisting anions on Pb(II) removal was PO43- > HCO3- > NO3- > F- > SO42- > Cl-. Also, several coexisting metals ions inculding Cr(VI), Ni(II) and Cu(II) could be removed in a simultaneous manner with Pb(II). A high removal performance of Pb(II) by SBC/US process and its synergism with phenol oxidation had been successfully achieved. The simultaneous removal efficiencies of Pb(II) and phenol were high up to 95% within 60 min at optimum reaction conditions. Four kinds of Pb species inculding Pb0, PbCO3, PbO and Pb(OH)2 were formed during the reaction, whereas five kinds of transformation compounds of phenol such as 1,4-benzoquinone, acetic acid, formic acid, maleic acid and propionic acid were detected. Both HO and O2- contributed to the oxidation of phenol by SBC/US process, but HO was dominant radical. A reaction mechanism for the synergistic removal of Pb(II) and phenol by SBC/US process involving in four stages-namely adsorption, precipitation, reduction and Fenton-like oxidation processes was proposed. This study demonstrates that SBC/US process could be considered as a potential candidate for the remediation of real wastewaters containing Pb(II) and phenol.
Collapse
Affiliation(s)
- Zeng-Hui Diao
- Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China; Hong Kong Polytechnic University, Hong Kong; Engineering and Technology Research Center for Agricultural Land Pollution Prevention and Control of Guangdong Higher Education Institutes, Guangzhou, 510225, China.
| | - Fu-Xin Dong
- Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Liu Yan
- Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Zhi-Liang Chen
- South China Institute of Environmental Sciences, Guangzhou, 510635, China
| | - Peng-Ran Guo
- Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Guangdong Institute of Analysis, Guangzhou, 510070, China
| | - Xiao-Jie Xia
- Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Wei Chu
- Hong Kong Polytechnic University, Hong Kong.
| |
Collapse
|
7
|
Tian B, Hua S, Tian Y, Liu J. Cyclodextrin-based adsorbents for the removal of pollutants from wastewater: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:1317-1340. [PMID: 33079345 DOI: 10.1007/s11356-020-11168-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
Water is a vital substance that constitutes biological structures and sustains life. However, water pollution is currently among the major environmental challenges and has attracted increasing study attention. How to handle contaminated water now mainly focuses on removing or reducing the pollutants from the wastewater. Cyclodextrin derivatives, possessing external hydrophilic and internal hydrophobic properties, have been recognized as new-generation adsorbents to exert positive effects on water pollution treatment. This article outlines recent contributions of cyclodextrin-based adsorbents on wastewater treatment, highlighting different adsorption mechanisms of cyclodextrin-based adsorbents under different influencing factors. The crosslinked and immobilized cyclodextrin-based adsorbents all displayed outstanding adsorption capacities. Particularly, according to specific pollutants including metal ions, organic chemicals, pesticides, and drugs in wastewater, this article has classified and organized various cyclodextrin-based adsorbents into tables, which could pave an intuitive shortcut for designing and developing efficient cyclodextrin-based adsorbents for targeted wastewater pollutants. Besides, this article specially discusses cost-effectiveness and regeneration performance of current cyclodextrin-based adsorbents. Finally, the challenges and future directions of cyclodextrin-based adsorbents are prospected in this article, which may shed substantial light on practical industrial applications of cyclodextrin-based adsorbents.
Collapse
Affiliation(s)
- Bingren Tian
- School of Chemical Engineering and Technology, Xinjiang University, Urumchi, 830046, China.
| | - Shiyao Hua
- School of Pharmacy, Ningxia Medical University, Yinchuan, 750004, China
| | - Yu Tian
- School of Computer Science and Engineering, Beihang University, Beijing, 100083, China
| | - Jiayue Liu
- School of Pharmacy, Ningxia Medical University, Yinchuan, 750004, China.
| |
Collapse
|
8
|
Zhang R, Ma Y, Lan W, Sameen DE, Ahmed S, Dai J, Qin W, Li S, Liu Y. Enhanced photocatalytic degradation of organic dyes by ultrasonic-assisted electrospray TiO 2/graphene oxide on polyacrylonitrile/β-cyclodextrin nanofibrous membranes. ULTRASONICS SONOCHEMISTRY 2021; 70:105343. [PMID: 32977274 PMCID: PMC7786584 DOI: 10.1016/j.ultsonch.2020.105343] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/27/2020] [Accepted: 09/04/2020] [Indexed: 05/04/2023]
Abstract
Polyacrylonitrile (PAN)/β-cyclodextrin (β-CD) composite nanofibrous membranes immobilized with nano-titanium dioxide (TiO2) and graphene oxide (GO) were prepared by electrospinning and ultrasonic-assisted electrospinning. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), and X-ray diffraction (XRD) confirmed that TiO2 and GO were more evenly dispersed on the surface and inside of the nanofibers after 45 min of ultrasonic treatment. Adding TiO2 and GO reduced the fiber diameter; the minimum fiber diameter was 84.66 ± 40.58 nm when the mass ratio of TiO2-to-GO was 8:2 (PAN/β-CD nanofibrous membranes was 191.10 ± 45.66 nm). Using the anionic dye methyl orange (MO) and the cationic dye methylene blue (MB) as pollutant models, the photocatalytic activity of the nanofibrous membrane under natural sunlight was evaluated. It was found that PAN/β-CD/TiO2/GO composite nanofibrous membrane with an 8:2 mass ratio of TiO2-to-GO exhibited the best degradation efficiency for the dyes. The degradation efficiency for MB and MO were 93.52 ± 1.83% and 90.92 ± 1.52%, respectively. Meanwhile, the PAN/β-CD/TiO2/GO composite nanofibrous membrane also displayed good antibacterial properties and the degradation efficiency for MB and MO remained above 80% after 3 cycles. In general, the PAN/β-CD/TiO2/GO nanofibrous membrane is eco-friendly, reusable, and has great potential for the removal of dyes from industrial wastewaters.
Collapse
Affiliation(s)
- Rong Zhang
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Yanlan Ma
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Wenting Lan
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Dur E Sameen
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Saeed Ahmed
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Jianwu Dai
- College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Yaan 625014, China
| | - Wen Qin
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Suqing Li
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China
| | - Yaowen Liu
- College of Food Science, Sichuan Agricultural University, Yaan 625014, China; California NanoSystems Institute, University of California, Los Angeles, CA 90095, USA.
| |
Collapse
|
9
|
Wang G, Dai J, Luo Q, Deng N. Photocatalytic degradation of bisphenol A by TiO2@aspartic acid-β-cyclodextrin@reduced graphene oxide. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117574] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
10
|
Bi J, Wang J, Huang X, Tao Q, Chen M, Wang T, Hao H. Enhanced removal of Pb(II) and organics by titanate in a designed simultaneous process. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117339] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
11
|
Wang Z, Zhang L, Fang P, Wang L, Wang W. Study on Simultaneous Removal of Dye and Heavy Metal Ions by NiAl-Layered Double Hydroxide Films. ACS OMEGA 2020; 5:21805-21814. [PMID: 32905424 PMCID: PMC7469369 DOI: 10.1021/acsomega.0c02875] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 08/03/2020] [Indexed: 05/04/2023]
Abstract
Herein, nickel-aluminum-layered double hydroxide (NiAl-LDH) films were prepared by the hydrothermal method. Based on the photoinduced reduction ability and degradation of LDHs on heavy metal ions and organic compounds, NiAl-LDH films displayed favorable simultaneous removal performance. Benefiting from the electron traps of heavy metals reduced from solution, the coexisting metal ions improved the photocatalytic activity of NiAl-LDH films on methyl orange. The higher the Fermi level of coexisting metal ion was, the higher the photocatalytic degradation rate of methyl orange obtained. Meanwhile, the removal rates of heavy metal ions (Ag+, Pb2+, and Cu2+) from wastewater were both enhanced and could reach 95%. NiAl-LDH films showed affinity toward Ag+. Furthermore, NiAl-LDH films are tightly coupled with the substrate, providing active sites and a simple method for the catalyst recovery. This study provides new insights into the simultaneous removal of heavy metal ions and organic pollutants using LDH films.
Collapse
|
12
|
Zhao P, Xu X, Zhao X, Ai C, Xu K, Li M, Jiang C, Shi J. Capability of Bacillus Subtilis to remove Pb 2+ via producing lipopeptides. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 730:138941. [PMID: 32388107 DOI: 10.1016/j.scitotenv.2020.138941] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/09/2020] [Accepted: 04/21/2020] [Indexed: 06/11/2023]
Abstract
Lead contamination is widely found in soil and waters, which makes great threat to animal and human health. Environmentally friendly, efficient, and economical methods for the removal of Pb2+ pose significant challenges for environmental protection. Bacillus subtilis lipopeptide was firstly used to remove Pb2+ from water. In mechanisms, the lipopeptides formed complexes and chelated with Pb2+ via OH, CO, OCO, and NH. In kinetics, the Pb2+ removal process closely followed a pseudo-first-order model, and the equilibrium Pb2+ adsorption capacity ranged from 112.6 to 113.7 mg/g within a temperature range of 293.13-313.13 K. The Pb2+ removal process could be well described by a Langmuir isotherm. The maximum Pb2+ removal capability of lipopeptides was 164.4 mg/g in manually metal contaminated water and 130.4 mg/g in actual wastewater. Furthermore, the lipopeptides can not only decrease the amount of lead in oats grown, but also promote oat growth under Pb2+ stress. The results showed that lipopeptides can be used as a highly efficient adsorbent to remove Pb2+ from water, which means the great potential of lipopeptides in practical environments.
Collapse
Affiliation(s)
- Pengpeng Zhao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Youyi West Road, Beilin District, Xi'an, Shaanxi 710072, China
| | - Xiaoguang Xu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Youyi West Road, Beilin District, Xi'an, Shaanxi 710072, China
| | - Xixi Zhao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Youyi West Road, Beilin District, Xi'an, Shaanxi 710072, China
| | - Chongyang Ai
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Youyi West Road, Beilin District, Xi'an, Shaanxi 710072, China
| | - Keyi Xu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Youyi West Road, Beilin District, Xi'an, Shaanxi 710072, China
| | - Meixuan Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Youyi West Road, Beilin District, Xi'an, Shaanxi 710072, China
| | - Chunmei Jiang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Youyi West Road, Beilin District, Xi'an, Shaanxi 710072, China
| | - Junling Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Youyi West Road, Beilin District, Xi'an, Shaanxi 710072, China.
| |
Collapse
|
13
|
Wang G, Luo Q, Dai J, Deng N. Adsorption of dichromate ions from aqueous solution onto magnetic graphene oxide modified by β-cyclodextrin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:30778-30788. [PMID: 32474786 DOI: 10.1007/s11356-020-09389-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 05/19/2020] [Indexed: 05/12/2023]
Abstract
In this work, the β-cyclodextrin modified magnetic graphene oxide (β-CD/MGO) composite was fabricated by the in situ co-precipitation method and characterized by Fourier transform-infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometer (VSM), and particle size analysis. The adsorption behavior of dichromate ions on the β-CD/MGO was investigated, and the mechanism of adsorption was also studied using FT-IR and XPS. The results from SEM and TEM showed that the graphene oxide (GO) layer became rough, and many fine particles were attached after compounding with ferroferric oxide and β-cyclodextrin. The characterization results of FT-IR and XPS show that that β-cyclodextrin and ferroferric oxide have been perfectly compounded to the graphene oxide layer and β-CD/MGO has a particle size of about 460 nm, a specific surface area of 252.3 m2g-1, and a saturation magnetization of 73.5 emu g-1. The adsorption amount of dichromate ions on the β-CD/MGO is affected by pH, adsorbent dosage, and adsorption time. Kinetic studies showed that the adsorption process followed a pseudo-second-order kinetic model. Equilibrium data agreed very well with the Langmuir model, the maximum adsorption amount of dichromate ions on the β-CD/MGO was 49.95 mg g-1. After five successive adsorbent reuses, the reuse rate is still 73%, indicating the excellent potential reusability of β-CD/MGO adsorbent. β-CD/MGO exhibits excellent adsorption performance for dichromate ions. As an environmentally friendly magnetic adsorbent, β-CD/MGO is suitable for the treatment of dichromate-containing wastewater.
Collapse
Affiliation(s)
- Guanghui Wang
- School of Water Resource and Environmental Engineering, East China University of Technology, Nanchang, Jiangxi, 330013, People's Republic of China.
| | - Qiuyan Luo
- School of Water Resource and Environmental Engineering, East China University of Technology, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Jialing Dai
- School of Water Resource and Environmental Engineering, East China University of Technology, Nanchang, Jiangxi, 330013, People's Republic of China
| | - Nansheng Deng
- School of Resources and Environmental Science, Wuhan University, Wuhan, Hubei, 430079, People's Republic of China
| |
Collapse
|
14
|
Khammar S, Bahramifar N, Younesi H. Preparation and surface engineering of CM-β-CD functionalized Fe 3O 4@TiO 2 nanoparticles for photocatalytic degradation of polychlorinated biphenyls (PCBs) from transformer oil. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122422. [PMID: 32200245 DOI: 10.1016/j.jhazmat.2020.122422] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
The aim of the present research is to investigate the efficiency of surface-modified magnetic nanoparticles for photocatalytic degradation of PCBs from transformer oil. Therefore, CMCD-Fe3O4@TiO2 was successfully produced via grafting of carboxymethyl-β-cyclodextrin (CM-β-CD) onto the core-shell titania magnetic nanoparticles surface. The photocatalytic efficiency of CMCD-Fe3O4@TiO2 for degradation of PCBs was systematically evaluated using an experimental design and the process parameters were optimized by response surface methodology (RSM). The central composite design (CCD) with four experimental parameters was used successfully in the modeling and optimization of photocatalytic efficiency in removing PCBs from transformer oil. ANOVA analysis confirmed a high R-squared value of 0.9769 describing the goodness of fit of the proposed model for the significance estimation of the individual and the interaction effects of variables. The optimal degradation yields of PCBs was achieved 83 % at a temperature of 25 °C, time of 16 min, the dosage of the catalyst of 8.35 mg and oil: ethanol ratio of 1:5. These findings encourage the practical use of CM-β-CD-Fe3O4@TiO2 as a promising and alternative photocatalyst on an industrial scale for the cleaning of organic pollutants such as PCBs due to its environmental friendliness, the benefit of magnetic separation and good reusability after five times.
Collapse
Affiliation(s)
- Sanaz Khammar
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356 Nour, Mazandaran, Iran
| | - Nader Bahramifar
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356 Nour, Mazandaran, Iran.
| | - Habibollah Younesi
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356 Nour, Mazandaran, Iran
| |
Collapse
|
15
|
Zhou Y, Liu Q, Lu J, He J, Liu Y, Zhou Y. Accelerated photoelectron transmission by carboxymethyl β-cyclodextrin for organic contaminants removal: An alternative to noble metal catalyst. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122414. [PMID: 32143160 DOI: 10.1016/j.jhazmat.2020.122414] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/13/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
Applications of noble metal decorated photocatalytic nanomaterials are restricted by its high cost. In this study, carboxymethyl β-cyclodextrin (CM-β-CD), as an alternative to gold nanoparticle, was used to modified titanium dioxide (CM-β-CD-P25) to accelerate photoelectron transmission and enhance the organic contaminants removal from water. Several of emerging organic contaminants, such as bisphenol A (BPA), phenol and sulphanilamide (SA), were used to evaluate their photocatalytic activities. Carboxymethyl-β-cyclodextrin not only provide hydrophobic sites to entrap organic contaminants but also provide a "bridge" for accelerated transmission of photogenerated charges without introducing the recombination interface. Consequently, 91.6 % of BPA, 71.9 % of phenol and 97.1 % of SA could be removed by CM-β-CD-P25(2:1) under 1 h UV light irradiation. The photooxidation rate constant of BPA, phenol and SA by CM-β-CD-P25(2:1) were 0.039 min-1, 0.021 min-1 and 0.062 min-1, respectively, which are much higher than that of pristine P25 and Au-P25. Moreover, the photocatalytic activity of CM-β-CD-P25(2:1) remains almost unchanged in repeated cycle test owing to its high stability. The reasonable mechanism of CM-β-CD-P25 were investigated. CM-β-CD-P25 hybrid nanoparticles completely surpasses Au-P25 in organic contaminants removal, and shows great potential to replace noble metal as mediator.
Collapse
Affiliation(s)
- Yi Zhou
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, No. 1515 Zhongshan Second North Road, Shanghai 200092, China
| | - Qiming Liu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
| | - Jian Lu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
| | - Jie He
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
| | - Yongdi Liu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China
| | - Yanbo Zhou
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, No. 130 Meilong Road, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, No. 1515 Zhongshan Second North Road, Shanghai 200092, China.
| |
Collapse
|
16
|
Subramaniam M, Goh P, Lau W, Ismail A, Karaman M. Enhanced visible light photocatalytic degradation of organic pollutants by iron doped titania nanotubes synthesized via facile one-pot hydrothermal. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.02.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
17
|
Zhao D, Wu T, Zhou Y. Dual II Heterojunctions Metallic Phase MoS
2
/ZnS/ZnO Ternary Composite with Superior Photocatalytic Performance for Removing Contaminants. Chemistry 2019; 25:9710-9720. [DOI: 10.1002/chem.201901715] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Indexed: 02/02/2023]
Affiliation(s)
- Dawei Zhao
- Department of Chemistry and Biological EngineeringChangsha University of Science and Technology Changsha 410114 People's Republic of China
| | - Tengteng Wu
- College of Chemistry and Chemical EngineeringHunan Normal University Changsha 410081 People's Republic of China
| | - Yi Zhou
- Department of Chemistry and Biological EngineeringChangsha University of Science and Technology Changsha 410114 People's Republic of China
| |
Collapse
|
18
|
Subramaniam MN, Goh PS, Lau WJ, Ismail AF. The Roles of Nanomaterials in Conventional and Emerging Technologies for Heavy Metal Removal: A State-of-the-Art Review. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E625. [PMID: 30999639 PMCID: PMC6523656 DOI: 10.3390/nano9040625] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/10/2019] [Accepted: 04/12/2019] [Indexed: 01/12/2023]
Abstract
Heavy metal (HM) pollution in waterways is a serious threat towards global water security, as high dosages of HM poisoning can significantly harm all living organisms. Researchers have developed promising methods to isolate, separate, or reduce these HMs from water bodies to overcome this. This includes techniques, such as adsorption, photocatalysis, and membrane removal. Nanomaterials play an integral role in all of these remediation techniques. Nanomaterials of different shapes have been atomically designed via various synthesis techniques, such as hydrothermal, wet chemical synthesis, and so on to develop unique nanomaterials with exceptional properties, including high surface area and porosity, modified surface charge, increment in active sites, enhanced photocatalytic efficiency, and improved HM removal selectivity. In this work, a comprehensive review on the role that nanomaterials play in removing HM from waterways. The unique characteristics of the nanomaterials, synthesis technique, and removal principles are presented. A detailed visualisation of HM removal performances and the mechanisms behind this improvement is also detailed. Finally, the future directions for the development of nanomaterials are highlighted.
Collapse
Affiliation(s)
- Mahesan Naidu Subramaniam
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor 81310, Malaysia.
| | - Pei Sean Goh
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor 81310, Malaysia.
| | - Woei Jye Lau
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor 81310, Malaysia.
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Johor 81310, Malaysia.
| |
Collapse
|