151
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Qu J, Meng X, Zhang Y, Meng Q, Tao Y, Hu Q, Jiang X, You H, Shoemaker CA. A combined system of microwave-functionalized rice husk and poly-aluminium chloride for trace cadmium-contaminated source water purification: Exploration of removal efficiency and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2019; 379:120804. [PMID: 31254783 DOI: 10.1016/j.jhazmat.2019.120804] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 05/30/2019] [Accepted: 06/19/2019] [Indexed: 06/09/2023]
Abstract
Cadmium is highly poisonous to mammals and related water pollution incidents are increasing world-widely. Here, the clean-up of trace Cd(II) by a combined process of microwave-functionalized rice husk (RHMW-M) and poly aluminium chloride (PAC) was investigated for the first time, with the exploration of removal mechanism and efficacy. Microwave irradiation was found to be a new approach to achieve the functionalized procedure, which could decrease the processing time from 2.5 h to 390 s with the Cd(II) uptake of the outcome product soaring from 137.16 mg/g to 191.32 mg/g. The ultra-rapidly prepared RHMW-M exhibited a fast adsorption equilibrium within 30 min over a wide pH range of 5.0-8.0, and the FT-IR and XPS studies confirmed that both ion exchange and chelation were functioned in the Cd(II) uptake process. Controlled by the turbidity threshold of drinking water treatment plant, the feasible dosage of RHMW-M in the absence and presence of 30 mg/L PAC increased from 30 to 760 mg/L, which could effectively deal with the trace Cd(II) at the concentration from 33 μg/L up to 0.933 mg/L, exhibiting much better performance than traditional alkali precipitation. Predictably, this simple and scalable RHMW-M/PAC system could afford a promising end-of-pipe solution for heavy-metal contamination.
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Affiliation(s)
- Jianhua Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China; Department of Industrial Systems Engineering and Management, National University of Singapore, 117576 Singapore, Singapore
| | - Xianlin Meng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
| | - Ying Zhang
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China.
| | - Qingjuan Meng
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Yue Tao
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Qi Hu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning Province 110016, China
| | - Xingying Jiang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Hong You
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Christine A Shoemaker
- Department of Industrial Systems Engineering and Management, National University of Singapore, 117576 Singapore, Singapore
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152
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An efficient pH sensitive hydrogel, with biocompatibility and high reusability for removal of methylene blue dye from aqueous solution. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.104346] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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153
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Luo J, Fu K, Sun M, Yin K, Wang D, Liu X, Crittenden JC. Phase-Mediated Heavy Metal Adsorption from Aqueous Solutions Using Two-Dimensional Layered MoS 2. ACS APPLIED MATERIALS & INTERFACES 2019; 11:38789-38797. [PMID: 31565919 DOI: 10.1021/acsami.9b14019] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An understanding of the impacts regarding different phases of inorganic materials on heavy metal removal is indispensable, owing to the intrinsic structure of materials that can affect its properties. In this study, the distinct adsorption behaviors of heavy metals (Pb(II) and Cu(II)) on different phases of MoS2 (metallic phase (1T) and semiconducting phase (2H)) were theoretically and experimentally investigated. According to the computational results, both Pb(II) and Cu(II) have formed more stable complexes on 1T-MoS2 compared to those on 2H-MoS2 due to the lower adsorption energy (Ead). This phenomenon indicates that Pb(II) and Cu(II) were more preferably adsorbed onto 1T-MoS2. Based on the results of the computational studies, two-dimensional (2D) MoS2 nanosheets with identical 1T and 2H phases were synthesized via a facile hydrothermal reaction. As we surmised, 1T-MoS2 achieved excellent Pb(II) and Cu(II) adsorption capacities, which were 147.09 and 82.13 mg/g at 298 K, respectively, compared to those of 2H-MoS2 (i.e., 64.16 and 50.74 mg/g at 298 K). Moreover, 1T-MoS2 has shown other superior properties, such as (i) ultrafast adsorption kinetics and (ii) great anti-interference activity toward other existing cations, compared to 2H-MoS2. Extensive computations and characterizations of MoS2-Pb and -Cu adsorption complexes illustrated that the active S sites were indispensable for heavy metal adsorption. Overall, for the first time, we provide evidence that 1T-MoS2 is more functional in heavy metal removal compared to 2H-MoS2, which can guide and expand the applications of MoS2-based adsorbents in environmental remediation.
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Affiliation(s)
- Jinming Luo
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
| | - Kaixing Fu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Environmental Science and Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Meng Sun
- Department of Chemical and Environmental Engineering , Yale University , New Haven , Connecticut 06520-8286 , United States
| | - Kai Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Environmental Science and Engineering , Hunan University , Changsha 410082 , P. R. China
| | - Dong Wang
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
| | - Xia Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Environmental Science and Engineering , Hunan University , Changsha 410082 , P. R. China
| | - John C Crittenden
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
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154
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Ng A, Weerakoon D, Lim E, Padhye LP. Fate of environmental pollutants. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:1294-1325. [PMID: 31502369 DOI: 10.1002/wer.1225] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/11/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
This annual review covers the literature published in 2018 on topics related to the occurrence and fate of environmental pollutants in wastewater. Due to the vast amount of literature published on this topic, we have discussed only a portion of the quality research publications, due to the limitation of space. The abstract search was carried out using Web of Science, and the abstracts were selected based on their relevance. In a few cases, full-text articles were referred to understand new findings better. This review is divided into the following sections: antibiotic-resistant bacteria (ARBs) and antibiotic-resistant genes (ARGs), disinfection by-products (DBPs), drugs of abuse (DoAs), estrogens, heavy metals, microplastics, per- and polyfluoroalkyl compounds (PFAS), pesticides, and pharmaceuticals and personal care products (PPCPs), with the addition of two new classes of pollutants to previous years (DoAs and PFAS).
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Affiliation(s)
- Archie Ng
- Department of Civil and Environmental Engineering, The University of Auckland, Auckland, New Zealand
| | - Dilieka Weerakoon
- Department of Civil and Environmental Engineering, The University of Auckland, Auckland, New Zealand
| | - Erin Lim
- Department of Civil and Environmental Engineering, The University of Auckland, Auckland, New Zealand
| | - Lokesh P Padhye
- Department of Civil and Environmental Engineering, The University of Auckland, Auckland, New Zealand
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155
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Enhancement of Cd2+ removal from aqueous solution by multifunctional mesoporous silica: Equilibrium isotherms and kinetics study. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.05.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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156
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Synthesis and characterization of Schiff-base based chitosan-g-glutaraldehyde/NaMMTNPs-APTES for removal Pb2+ and Hg2+ ions. Carbohydr Polym 2019; 222:114971. [DOI: 10.1016/j.carbpol.2019.114971] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 05/16/2019] [Accepted: 06/05/2019] [Indexed: 02/07/2023]
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157
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Ma J, Li T, Liu Y, Cai T, Wei Y, Dong W, Chen H. Rice husk derived double network hydrogel as efficient adsorbent for Pb(II), Cu(II) and Cd(II) removal in individual and multicomponent systems. BIORESOURCE TECHNOLOGY 2019; 290:121793. [PMID: 31323508 DOI: 10.1016/j.biortech.2019.121793] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 06/10/2023]
Abstract
In this study, lignin extracted from rice husk was used to synthesis double network hydrogel adsorbent, named RH-CTS/PAM gel. RH-CTS/PAM gel exhibited macroporous structure and high buried water content, which gave rise to the exceptional adsorption performance. As results, in individual systems, the equilibrium time of Pb(II), Cu(II) and Cd(II) with initial concentration of 200 mg/L could be reached within 10 min, with the theoretical maximum adsorption capacity of 374.32, 196.68 and 268.98 mg/g, respectively. The adsorption rate and capacity of Pb(II), Cu(II) and Cd(II) in multicomponent systems were lower than that of individual systems. However, in a few cases of ternary system, higher adsorption rate and capacity was observed compare to binary systems. Adsorption mechanism indicated that both oxygen-containing and nitrogen-containing functional groups played a dominant role during the adsorption process, and mainly through chemical interaction along with a small amount of physical interaction.
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Affiliation(s)
- Jianhong Ma
- College of Environmental Science and Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Yuelu District, Changsha 410082, PR China
| | - Tong Li
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou 510006, PR China
| | - Yutang Liu
- College of Environmental Science and Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Yuelu District, Changsha 410082, PR China.
| | - Tao Cai
- College of Environmental Science and Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Yuelu District, Changsha 410082, PR China
| | - Yuanfeng Wei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China
| | - Wanyue Dong
- College of Environmental Science and Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Yuelu District, Changsha 410082, PR China
| | - Hui Chen
- College of Environmental Science and Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Lushan South Road, Yuelu District, Changsha 410082, PR China
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158
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Luo J, Crittenden JC. Nanomaterial Adsorbent Design: From Bench Scale Tests to Engineering Design. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:10537-10538. [PMID: 31442038 DOI: 10.1021/acs.est.9b04371] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Jinming Luo
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
| | - John C Crittenden
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
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159
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Liu X, Xu M, An B, Wu Z, Yang R, Ma C, Huang Q, Li W, Li J, Liu S. A facile hydrothermal method-fabricated robust and ultralight weight cellulose nanocrystal-based hydro/aerogels for metal ion removal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:25583-25595. [PMID: 31267405 DOI: 10.1007/s11356-019-05810-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 06/20/2019] [Indexed: 06/09/2023]
Abstract
Heavy metal ion contamination, in particular that associated with Pb2+, Cd2+, and Cu2+, poses a considerable threat to aquatic environments and human health. To obtain a highly efficient adsorbent, in this work, a facile hydrothermal method was applied to prepare acrylic acid grafted onto cellulose nanocrystal (AA-g-CNC) hydro/aerogel as an adsorbent for Pb2+, Cd2+, and Cu2+ removal. The obtained AA-g-CNC hydrogels withstood up to 0.821 MPa of compression and showed good reciprocating performance when the deformation reached 40%. The as-formed AA-g-CNC aerogels had highly porous honeycomb structure, with many functional groups and a high zeta potential, all of which are essential features for an effective adsorbent. The maximum Pb2+, Cd2+, and Cu2+ removal capacities of AA-g-CNC aerogels reached 1026, 898.8, and 872.4 mg/g respectively. Their adsorption followed the Freundlich isotherm model and fitted well with pseudo-second-order kinetic models. The adsorption mechanism mainly attributed to electrostatic chelation between metal ions with sulfonate and carboxylate groups.
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Affiliation(s)
- Xuehua Liu
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Mingcong Xu
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Bang An
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Zhenwei Wu
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Rue Yang
- Post-Doctoral Research Center, Yihua Lifestyle Technology Co., Ltd., Shantou, 515834, People's Republic of China
| | - Chunhui Ma
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Qiongtao Huang
- Post-Doctoral Research Center, Yihua Lifestyle Technology Co., Ltd., Shantou, 515834, People's Republic of China
| | - Wei Li
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China.
- Post-Doctoral Research Center, Yihua Lifestyle Technology Co., Ltd., Shantou, 515834, People's Republic of China.
| | - Jian Li
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China
| | - Shouxin Liu
- Key laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin, 150040, People's Republic of China.
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160
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Mondal H, Karmakar M, Chattopadhyay PK, Singha NR. Starch-g-tetrapolymer hydrogel via in situ attached monomers for removals of Bi(III) and/or Hg(II) and dye(s): RSM-based optimization. Carbohydr Polym 2019; 213:428-440. [DOI: 10.1016/j.carbpol.2019.02.035] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 01/07/2019] [Accepted: 02/11/2019] [Indexed: 11/27/2022]
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161
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Chen W, Shen Y, Ling Y, Peng Y, Ge M, Pan Z. Synthesis of Positively Charged Polystyrene Microspheres for the Removal of Congo Red, Phosphate, and Chromium(VI). ACS OMEGA 2019; 4:6669-6676. [PMID: 31459792 PMCID: PMC6648410 DOI: 10.1021/acsomega.9b00318] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 03/28/2019] [Indexed: 05/12/2023]
Abstract
Uniform positively charged polystyrene microspheres were synthesized and further examined as a new sorbent for water remediation. The structures of the resulting sorbent were characterized by field-emission scanning electron microscopy, Fourier transform infrared spectroscopy, and 1H nuclear magnetic resonance spectroscopy. The adsorption performance of the sorbent was evaluated using three typical pollutants, namely, Congo red, phosphate, and Cr(VI). The adsorption isotherms were fitted by the Langmuir and Freundlich models, while the adsorption kinetics was analyzed by the pseudo-first-order, pseudo-second-order, and intraparticle diffusion equations. The thermodynamic parameters of the adsorption process including changes of enthalpy, entropy and Gibbs free energy, and binding constant were obtained by isothermal titration calorimetry measurements. The effects of solution pH and competitive ions on the adsorption process were investigated. The adsorption isotherms could be better fitted by the Langmuir model, yielding maximum adsorption capacities of 18, 6.2, and 1.1 mg g-1 for the adsorption of Congo red, Cr(VI), and phosphate, respectively. The adsorption kinetics could be best described by the pseudo-second-order equation. The spent sorbent was regenerated by washing with 1 M KOH and showed outstanding long-term cyclic performance. The findings suggested that the positive charges at the surface of polystyrene microspheres could serve as effective sites for the immobilization of anionic pollutants in solutions owing to the electrostatic attraction.
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Affiliation(s)
- Weiming Chen
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yi Shen
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
- E-mail:
| | - Ying Ling
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yaotian Peng
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Moyan Ge
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ziyan Pan
- School
of Food Science and Engineering and School of Materials Science and
Engineering, South China University of Technology, Guangzhou 510640, China
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162
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Kong Y, Zhuang Y, Han Z, Yu J, Shi B, Han K, Hao H. Dye removal by eco-friendly physically cross-linked double network polymer hydrogel beads and their functionalized composites. J Environ Sci (China) 2019; 78:81-91. [PMID: 30665659 DOI: 10.1016/j.jes.2018.07.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/13/2018] [Accepted: 07/18/2018] [Indexed: 06/09/2023]
Abstract
Hydrogels have attracted large attention in wastewater treatment fields due to their low-cost and good interaction with pollutants, among which novel double network hydrogel is an outstanding class. To expand the application of double network hydrogel in water treatment, in this study, eco-friendly physically cross-linked double network polymer hydrogel beads (DAP) are prepared and studied in depth on the mechanism of Methylene Blue (MB) adsorption; and then the polymer hydrogels are further functionalized by inorganic materials. MB adsorption on DAP favors alkaline condition which is due to the increase of electrostatic attraction and adsorption site, and it reaches equilibrium within 10 hr, which is faster than that of the single network hydrogel beads (SAP). Through thermodynamics study, the process shows to be an exothermic and spontaneous process. The adsorption isotherms are well fitted by Langmuir model, with a maximum monolayer adsorption capacity of 1437.48 mg/g, which is larger than SAP (1255.75 mg/g). After being functionalized with common inorganic materials including activated carbon, Fe3O4 and graphene oxide (GO), the composites show to have larger pore sizes and have obvious increases in adsorption capacity especially the one contains GO. Then the composites contains Fe3O4 are used as heterogeneous Fenton catalyst which shows to have excellent performance in MB degradation. The results indicate the potential of polymer double network to be functionalized in environmental areas.
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Affiliation(s)
- Yan Kong
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Yuan Zhuang
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Zhiyong Han
- College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Jianwei Yu
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Baoyou Shi
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kun Han
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Haotian Hao
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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163
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Plácido J, Bustamante-López S, Meissner KE, Kelly DE, Kelly SL. Microalgae biochar-derived carbon dots and their application in heavy metal sensing in aqueous systems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 656:531-539. [PMID: 30529956 DOI: 10.1016/j.scitotenv.2018.11.393] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/09/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
This research seeks a coupled solution for managing the large amounts of biochar produced by microalgae biofuel production, and the necessity for novel, economic and accurate heavy metal sensing methods. Therefore, this study evaluated the transformation of microalgae biochar (MAB) into carbon dots (Cdots) and their subsequent application as heavy metal ion sensors in aqueous systems. The experimental phase included the transformation of MAB into microalgae biochar-derived carbon dots (MAB-Cdots), MAB-Cdot characterisation and the evaluation of the MAB-Cdots as transducers for the detection of four heavy metal ions (Pb2+, Cu2+, Cd2+, and Ni2+). MAB-Cdot fluorescence was stable over a wide range of pH and resistant to photo-bleaching, making them suitable as fluorescence probes. The MAB-Cdot fluorescence was quenched by all of the metal ions and displayed different quenching levels. Depending upon the ions involved, MAB-Cdots were used to detect the presence of heavy metal ions from concentrations of 0.012 μM up to 2 mM by measuring the reduction in fluorescence intensity. Neutral and slightly alkaline pHs were optimal for Cu2+ Ni2+ and Pb2+ heavy metal quenching. To quantify the concentration of the heavy metal ions, linear and logarithmic functions were used to model the MAB-Cdot fluorescence quenching. The sensing mechanism was determined to be reversible and purely collisional with some fluorophores less accessible than the others. This work demonstrated the ability to produce Cdots from microalgae biochar, examined their application as a transducer for detecting heavy metal ions in aqueous systems and paves the way for novel sensing systems using MAB-Cdots.
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Affiliation(s)
- J Plácido
- Institute of Life Science (ILS 1), Swansea University Medical School, Swansea University, Swansea, SA2 8PP, Wales, UK.
| | - S Bustamante-López
- Department of Physics, Centre for NanoHealth, Swansea University, Swansea, SA2 8PP, Wales, UK
| | - K E Meissner
- Department of Physics, Centre for NanoHealth, Swansea University, Swansea, SA2 8PP, Wales, UK
| | - D E Kelly
- Institute of Life Science (ILS 1), Swansea University Medical School, Swansea University, Swansea, SA2 8PP, Wales, UK
| | - S L Kelly
- Institute of Life Science (ILS 1), Swansea University Medical School, Swansea University, Swansea, SA2 8PP, Wales, UK.
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164
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Ren H, Li B, Neckenig M, Wu D, Li Y, Ma Y, Li X, Zhang N. Efficient lead ion removal from water by a novel chitosan gel-based sorbent modified with glutamic acid ionic liquid. Carbohydr Polym 2019; 207:737-746. [DOI: 10.1016/j.carbpol.2018.12.043] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 12/15/2018] [Accepted: 12/15/2018] [Indexed: 10/27/2022]
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165
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Bagheri S, Amini MM, Behbahani M, Rabiee G. Low cost thiol-functionalized mesoporous silica, KIT-6-SH, as a useful adsorbent for cadmium ions removal: A study on the adsorption isotherms and kinetics of KIT-6-SH. Microchem J 2019. [DOI: 10.1016/j.microc.2018.11.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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166
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Luo J, Sun M, Ritt CL, Liu X, Pei Y, Crittenden JC, Elimelech M. Tuning Pb(II) Adsorption from Aqueous Solutions on Ultrathin Iron Oxychloride (FeOCl) Nanosheets. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:2075-2085. [PMID: 30696248 DOI: 10.1021/acs.est.8b07027] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Structural tunability and surface functionality of layered two-dimensional (2-D) iron oxychloride (FeOCl) nanosheets are critical for attaining exceptional adsorption properties. In this study, we combine computational and experimental tools to elucidate the distinct adsorption nature of Pb(II) on 2-D FeOCl nanosheets. After finding promising Pb(II) adsorption characteristics by bulk FeOCl sheets (B-FeOCl), we applied computational quantum mechanical modeling to mechanistically explore Pb(II) adsorption on representative FeOCl facets. Results indicate that increasing the exposure of FeOCl oxygen and chlorine sites significantly enhances Pb(II) adsorption. The (110) and (010) facets of FeOCl possess distinct orientations of oxygen and chlorine, resulting in different Pb(II) adsorption energies. Consequently, the (110) facet was found to be more selective toward Pb(II) adsorption than the (010) facet. To exploit this insight, we exfoliated B-FeOCl to obtain ultrathin FeOCl nanosheets (U-FeOCl) possessing unique chlorine- and oxygen-enriched surfaces. As we surmised, U-FeOCl nanosheets achieved excellent Pb(II) adsorption capacity (709 mg g-1 or 3.24 mmol g-1). Moreover, U-FeOCl demonstrated rapid adsorption kinetics, shortening adsorption equilibration time to one-third of the time for B-FeOCl. Extensive characterization of FeOCl-Pb adsorption complexes corroborated the simulation results, illustrating that increasing the number of Pb-O and Pb-Cl interaction sites led to the improved Pb(II) adsorption capacity of U-FeOCl.
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Affiliation(s)
- Jinming Luo
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
| | - Meng Sun
- Department of Chemical and Environmental Engineering , Yale University , New Haven , Connecticut 06520-8286 , United States
| | - Cody L Ritt
- Department of Chemical and Environmental Engineering , Yale University , New Haven , Connecticut 06520-8286 , United States
| | - Xia Liu
- Department of Chemistry, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education , Xiangtan University , Xiangtan , Hunan Province 411105 , P. R. China
| | - Yong Pei
- Department of Chemistry, Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education , Xiangtan University , Xiangtan , Hunan Province 411105 , P. R. China
| | - John C Crittenden
- Brook Byers Institute for Sustainable Systems and School of Civil and Environmental Engineering , Georgia Institute of Technology , 828 West Peachtree Street , Atlanta , Georgia 30332 , United States
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering , Yale University , New Haven , Connecticut 06520-8286 , United States
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167
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Kong Q, Wei J, Hu Y, Wei C. Fabrication of terminal amino hyperbranched polymer modified graphene oxide and its prominent adsorption performance towards Cr(VI). JOURNAL OF HAZARDOUS MATERIALS 2019; 363:161-169. [PMID: 30308354 DOI: 10.1016/j.jhazmat.2018.09.084] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 09/20/2018] [Accepted: 09/29/2018] [Indexed: 05/04/2023]
Abstract
In order to increase the density and quantity of functional groups on adsorbent, three terminal amino hyperbranched polymer modified graphene oxide adsorbents including GO-HBP-NH2-DETA, GO-HBP-NH2-TETA and GO-HBP-NH2-TEPA with N-containing functional group density of 7.21 wt%, 10.20 wt% and 12.43 wt%, respectively, were prepared and used for the adsorption and reduction of toxic hexavalent chromium Cr(VI) to less toxic Cr(III). The morphology and structure of obtained adsorbents were characterized by FT-IR, SEM, XRD, Raman, BET, XPS and zeta potential. The density of receptor sites (Nm) of the three adsorbents calculated from statistical physics model with one energy site were found to be 456.62, 604.54 and 636.03, respectively. Adsorption experiments demonstrated that the high adsorption capacities of the three adsorbents obtained from Langmuir isotherm model towards Cr(VI) were 245.01, 257.26 and 300.88 mg/g, respectively, suggesting that GO-HBP-NH2-TEPA had better adsorption ability. The density functional theory calculation (DFT) indicated that GO-HBP-NH2-TEPA was more likely to adsorb HCrO4- rather than Cr2O72- at lower pH conditions. A possible adsorption mechanism was also proposed where electrostatic interaction between Cr(VI) (HCrO4- or Cr2O72-) and the N functional group (+) on GO-HBP-NH2-TEPA dominated the adsorption of Cr(VI) and reduction mechanism dominated the reduction of Cr(VI)-Cr(III).
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Affiliation(s)
- Qiaoping Kong
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Jingyue Wei
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Yun Hu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China
| | - Chaohai Wei
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou 510006, PR China.
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168
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Preparation of polyacrylic-acid/palygorskite composite particles via inverse-suspension polymerization for efficient separation of Ce3+ from aqueous solution. J Colloid Interface Sci 2019; 535:371-379. [DOI: 10.1016/j.jcis.2018.09.103] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 09/22/2018] [Accepted: 09/29/2018] [Indexed: 11/22/2022]
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169
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Ibrahim B, Fakhre N. Crown ether modification of starch for adsorption of heavy metals from synthetic wastewater. Int J Biol Macromol 2019; 123:70-80. [DOI: 10.1016/j.ijbiomac.2018.11.058] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/23/2018] [Accepted: 11/11/2018] [Indexed: 10/27/2022]
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170
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Shen W, Jiang X, An QD, Xiao ZY, Zhai SR, Cui L. Combining mussel and seaweed hydrogel-inspired strategies to design novel ion-imprinted sorbents for ultra-efficient lead removal from water. NEW J CHEM 2019. [DOI: 10.1039/c8nj06154h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lead(ii) is one of the most toxic heavy metals and is a serious threat to the environment and human health.
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Affiliation(s)
- Wei Shen
- Faculty of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
| | - Xiao Jiang
- Faculty of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
| | - Qing-Da An
- Faculty of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
| | - Zuo-Yi Xiao
- Faculty of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
| | - Shang-Ru Zhai
- Faculty of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
| | - Li Cui
- Faculty of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
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171
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Nematidil N, Sadeghi M. Fabrication and characterization of a novel biosorbent and its evaluation as adsorbent for heavy metal ions. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2646-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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172
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Yarandpour M, Rashidi A, khajavi R, Eslahi N, Yazdanshenas M. Mesoporous PAA/dextran-polyaniline core-shell nanofibers: Optimization of producing conditions, characterization and heavy metal adsorptions. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.09.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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173
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Meng Q, Peng B, Shen C. Synthesis of F127/PAA hydrogels for removal of heavy metal ions from organic wastewater. Colloids Surf B Biointerfaces 2018; 167:176-182. [DOI: 10.1016/j.colsurfb.2018.04.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 11/25/2022]
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174
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Hou X, Li Y, Pan Y, Jin Y, Xiao H. Controlled release of agrochemicals and heavy metal ion capture dual-functional redox-responsive hydrogel for soil remediation. Chem Commun (Camb) 2018; 54:13714-13717. [DOI: 10.1039/c8cc07872f] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A novel redox-responsive hydrogel for controlled release of agrochemicals and heavy metal ion capture was prepared, benefiting plant growth and soil remediation synchronously.
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Affiliation(s)
- Xiaobang Hou
- Department of Environmental Engineering
- North China Electric Power University
- Baoding
- China
| | - Yuchen Li
- Department of Environmental Engineering
- North China Electric Power University
- Baoding
- China
| | - Yuanfeng Pan
- Guangxi Key Lab of Petrochem. Resource Proc. & Process Intensification Tech
- School of Chemistry and Chemical Engineering Guangxi University
- Nanning
- China
| | - Yongcan Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Huining Xiao
- Department of Chemical Engineering
- University of New Brunswick
- Fredericton
- E3B 5A3 Canada
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