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Pan L, Liu Z, Hernandez MV, Schroeder BC, Sun Y, Faul CFJ. Polyaniline-Based Cationic Porous Organic Polymers for Fast and Efficient Anion-Exchange-Driven Capture of Cr 2O 7 2. ACS APPLIED POLYMER MATERIALS 2024; 6:6416-6424. [PMID: 38903399 PMCID: PMC11186002 DOI: 10.1021/acsapm.4c00658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 06/22/2024]
Abstract
Efficient treatment of wastewater contaminated with carcinogenic Cr(VI) has been a long-term challenge for both academic and industrial research efforts. Removal of Cr(VI) species by ion exchange is a relatively simple and efficient method, and its combination with highly tailorable nanomaterials is promising for the treatment of such wastewater. Here, we report a type of cationic porous organic polymer (POP), namely, PTPA-PIP, which can be prepared simply by converting the corresponding aromatic polyamine PTPA to its protonated form, thereby significantly increasing its hydrophilicity and ability to disperse homogeneously in water, crucial for application in water treatment. In addition to detailed characterization of the physicochemical properties of PTPA-PIP (including using Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), Brunauer-Emmett-Teller (BET), and solid-state NMR techniques), adsorption experiments demonstrate that PTPA-PIP removes low-concentration dichromate anions with very high performance, including excellent exchange capacity (maximum capacity of 230 mg Cr2O7 2-/g PTPA-PIP), ultrafast removal (initial adsorption rate of 83 mg g-1 min-1), excellent selectivity (∼10% loss of adsorption capacity in the presence of 40-fold concentration of competing anions), as well as superior reusability (reusable for at least 5 cycles without compromised performance). These results demonstrate that PTPA-PIP is an outstanding candidate for application in industrial settings for the effective removal of harmful Cr(VI) pollutants in wastewater.
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Affiliation(s)
- Long Pan
- School
of Chemistry, University of Bristol, Bristol, England BS8 1TS, U.K.
- Institute
for Advanced Pharmaceutical Materials, Asymchem
Life Sciences (Tianjin) Co., Ltd., No.265 South Avenue, TEDA, Tianjin 300462, P. R. China
| | - Zilu Liu
- Department
of Chemistry, University College London, London WC1H 0AJ, U.K.
| | | | - Bob C. Schroeder
- Department
of Chemistry, University College London, London WC1H 0AJ, U.K.
| | - Yuchen Sun
- Institute
for Advanced Pharmaceutical Materials, Asymchem
Life Sciences (Tianjin) Co., Ltd., No.265 South Avenue, TEDA, Tianjin 300462, P. R. China
| | - Charl F. J. Faul
- School
of Chemistry, University of Bristol, Bristol, England BS8 1TS, U.K.
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2
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Joshi P, Mehta S, Goswami RN, Srivastava M, Ray A, Khatri OP. Fruit waste-derived cellulose-polyaniline composite for adsorption-coupled reduction of chromium oxyanions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8719-8735. [PMID: 38182948 DOI: 10.1007/s11356-023-31511-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 12/08/2023] [Indexed: 01/07/2024]
Abstract
Hexavalent chromium oxyanions, known as potentially toxic micropollutants, exist in the effluents and discharges of metallurgical, electroplating, refractory, chemical, and tanning industries. The exposure of chromium-contaminated water causes severe health hazards. The present work outlines a facile approach to grow polyaniline (PANI) on fruit-waste-derived cellulose (CEL) via oxidative polymerization of aniline; followed by chemical processing with NH4OH to obtain CEL-PANI-EB composites for adsorptive separation-coupled reduction of highly toxic hexavalent chromium oxyanions. The spectroscopic analyses of the CEL-PANI-EB composite before and after adsorption of Cr(VI) oxyanions revealed hydrogen bonding, electrostatic, and complexation as major interactive pathways. The adsorbed hexavalent chromium oxyanions are reduced into Cr(III) species by oxidation of PANI-based benzenoid amine into quinoid imine in the CEL-PANI-EB composite. The adsorption of Cr(VI) oxyanions by the CEL-PANI-EB composite showed negligible effects of other anionic co-pollutants, like NO3- and SO42-. The CEL-PANI-EB composite adsorbed Cr(VI) oxyanions with a removal capacity of 469 mg g-1, based on the Langmuir adsorption isotherm model. The hydroxyl functionalities in cellulose and amine/imine functionalities in PANI facilitate the electrostatic attraction between the CEL-PANI-EB and Cr(VI) oxyanions in an acidic environment beside the hydrogen linkages. The adsorbed Cr(VI) oxyanions are reduced to Cr(III)-based species by the benzenoid amines of PANI, as revealed from the XPS analyses. The CEL-PANI-EB composite showed excellent recyclability and maintained 83.4% adsorption efficiency after seven runs of chromium adsorption-desorption. The current findings reveal the potential of CEL-PANI-EB composites for the adsorptive removal of Cr(VI) oxyanions and their conversion into a lesser toxic form, making them promising materials for wastewater treatment applications.
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Affiliation(s)
- Pratiksha Joshi
- CSIR-Indian Institute of Petroleum, Dehradun, 248005, India
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Sweta Mehta
- CSIR-Indian Institute of Petroleum, Dehradun, 248005, India
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Ramesh N Goswami
- CSIR-Indian Institute of Petroleum, Dehradun, 248005, India
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Manoj Srivastava
- CSIR-Indian Institute of Petroleum, Dehradun, 248005, India
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Anjan Ray
- CSIR-Indian Institute of Petroleum, Dehradun, 248005, India
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India
| | - Om P Khatri
- CSIR-Indian Institute of Petroleum, Dehradun, 248005, India.
- Academy of Scientific and Innovative Research, Ghaziabad, 201002, India.
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3
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Dong K, Jiang Y, Zhang Y, Qin Z, Mo L. Tannic acid-assisted fabrication of antibacterial sodium alginate-based gel beads for the multifunctional adsorption of heavy metal ions and dyes. Int J Biol Macromol 2023; 252:126249. [PMID: 37562481 DOI: 10.1016/j.ijbiomac.2023.126249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/17/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023]
Abstract
The existence of heavy metals and dyes seriously affects the ecological environment and human safety. Antibacterial adsorption materials with the broad-spectrum removal of multiple pollutants are urgently required for water remediation. Herein, a sustainable and antibacterial sodium alginate (SA) gel bead adsorbent with honeycomb cellular architecture is developed by the biomimetic deposition polyphenolic tannic acid (TA) induced grafting diethylenetriamine (DETA) under mild conditions for efficient removal of Cr(VI) and dyes. Taking advantage of the catechol surface chemistry, TA occurring rapid polymerization with DETA monomers not only enhances the water resistance and thermal stability of the gel bead, but also introduces abundant polyphenolic functional groups and active adsorption sites. The multifunctional gel bead showed outstanding antibacterial activity against S. aureus (sterilization rates: 83.8 %) and E. coli (sterilization rates: 99.5 %). The maximum adsorption capacity of gel bead for Cr(VI) was 163.9 mg/g. Moreover, the removal efficiency of the gel bead for dyes of Safranine T and Rhodamine B was 89.5 % (maximum adsorption capacity: 537 mg/g) and 76.7 % (maximum adsorption capacity: 460.2 mg/g), respectively, indicating its excellent broad-spectrum adsorption performance for multiple pollutants. Therefore, TA-assisted fabrication of SA-based gel bead with excellent antibacterial property is a promising multifunctional adsorption material for practical water remediation.
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Affiliation(s)
- Kaiqiang Dong
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China
| | - Yanling Jiang
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China
| | - Yidan Zhang
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China
| | - Zhiyong Qin
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China.
| | - Liuting Mo
- School of Resources Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China.
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4
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Zhang J, Ren H, Fan H, Zhou S, Huang J. One-Step Fabrication of Recyclable Konjac Glucomannan-Based Magnetic Nanoparticles for Highly Efficient Cr(VI) Adsorption. Molecules 2023; 28:7100. [PMID: 37894579 PMCID: PMC10609117 DOI: 10.3390/molecules28207100] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Recently, the natural polymer polysaccharide konjac glucomannan (KGM) has received attention as a promising adsorbent in water treatment due to its low toxicity, cost-effectiveness and biocompatibility. However, the high-level water absorbency of KGM makes it difficult to recover in water treatment. In this study, by combining KGM with magnetic nanoparticles, KGM-based magnetic nanoparticles (KGM-Fe3O4 NPs) with excellent adsorption properties and recyclability for heavy metals were prepared using an one-step precipitation method. The as-prepared KGM-Fe3O4 NPs have a spherical morphology of superparamagnetism with a small particle size (ca. 7.0 nm) and a large specific surface area (160.1 m2·g-1). Taking Cr(VI) as the target heavy metal ion, the above nanoparticles have a high adsorption capacity and fast adsorption rate for Cr(VI). The pseudo-second order kinetic model is more suitable to describe the adsorption process of Cr(VI) by KGM-Fe3O4 NPs, and the maximum adsorption capacity of Cr(VI) onto KGM-Fe3O4 NPs was calculated to be 41.67 mg·g-1 using the Langmuir isotherm model. In addition, KGM-Fe3O4 NPs with adsorbed heavy metal ions can be quickly recovered from a solution, regenerated, and reused in the next cycle. KGM-based Fe3O4 nanoparticles are promising adsorbents that show significant reusability for the removal of metal ions in water and wastewater treatment.
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Affiliation(s)
- Jianjuan Zhang
- School of Environment and Safety Engineering, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Huiyun Ren
- School of Environment and Safety Engineering, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Honglei Fan
- School of Environment and Safety Engineering, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Shaofeng Zhou
- School of Environment and Safety Engineering, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China
| | - Jin Huang
- Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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5
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Adsorption of Cr(VI) in aqueous solution by polypyrrole nanotube and polypyrrole nanoparticle; Kinetics, isotherm equilibrium, and thermodynamics. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Visible- light responsive PPynt@NH2-MIL-125 nanocomposite for efficient reduction of Cr(VI). Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128147] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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7
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Deb AK, Biswas B, Naidu R, Rahman MM. Mechanistic insights of hexavalent chromium remediation by halloysite-supported copper nanoclusters. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126812. [PMID: 34396956 DOI: 10.1016/j.jhazmat.2021.126812] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 07/31/2021] [Accepted: 08/01/2021] [Indexed: 06/13/2023]
Abstract
Chromium (Cr) pollution is a significant environmental concern with remediation challenge. Hexavalent chromium (Cr(VI)) is more toxic than trivalent chromium (Cr(III)) due to its mutagenicity and oncogenicity. In this investigation, a multi-functional material, copper nanoclusters (CuNCs)-halloysite nanotubes (HNT) composite (CuNCs@HNT), has been synthesised in an eco-friendly manner and utilised for Cr(VI) remediation. Advanced analytical tools confirmed the seeding of ultra-fine CuNCs onto HNT surfaces. The maximum adsorption capacity of CuNCs@HNT is 79.14 ± 6.99 mg/g at pH 5 ± 0.1 with an increment at lower pHs. This performance was comparable for real surface stream water as well as other reported materials. The pseudo-second-order kinetic-, intra-particle diffusion- and Freundlich isotherm models well fit the experimental data implying that the chemisorption, multiphase diffusion and multi-molecular layer distribution occurred during adsorption. The Fourier-transform infrared and the x-ray photoelectron spectra also ensured the transformation of Cr(VI) to Cr(III) indicating the material's suitability for concurrent adsorption and reduction of Cr(VI). While coexisting cations and anions did not overwhelm this adsorption, CuNCs@HNT was regenerated and reused five successive times in adsorption-desorption cycles without significant loss of adsorption capacity and material's integrity. Therefore, this multi-functional, biocompatible, low-cost and stable CuNCs@HNT composite may have practical application for similar toxic metals remediation.
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Affiliation(s)
- Amal Kanti Deb
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia; Institute of Leather Engineering and Technology, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Bhabananda Biswas
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia; Future Industries Institute, University of South Australia, STEM UniSA, Mawson Lakes Campus, SA 5095, Australia
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia.
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8
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Sahu S, Bishoyi N, Sahu MK, Patel RK. Investigating the selectivity and interference behavior for detoxification of Cr(VI) using lanthanum phosphate polyaniline nanocomposite via adsorption-reduction mechanism. CHEMOSPHERE 2021; 278:130507. [PMID: 34126699 DOI: 10.1016/j.chemosphere.2021.130507] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/28/2021] [Accepted: 04/03/2021] [Indexed: 06/12/2023]
Abstract
A novel Lanthanum phosphate polyaniline (LaPO4-PANI) nanocomposite was synthesized by the simple sol-gel technique. The nanocomposite prepared at 1:1 ratio provided the highest ion exchange capacity and selective adsorption of Cr(VI). The phase composition and particle morphology of the as-prepared material was evaluated by XRD, FESEM and TEM analyses. The FTIR, Raman, and TGA data inferred the definite chemical interaction between the organic and inorganic counterparts in the formation of LaPO4-PANI. The selective adsorption of Cr(VI) was estimated by evaluating the distribution coefficient, electrical double layer theory as well as valency and Pauling's ionic radii of interfering ions (phosphate, iodide, sulfate, chloride, sulfide). The high tolerance capability of LaPO4-PANI against the interfering ions made it appropriate for selective and efficient removal of Cr(VI) ions from solutions. The nanocomposite showed the highest removal percentage of 98.6% towards Cr(VI) in a wide pH range of 2-6 at room temperature, as compared to sole lanthanum phosphate (56%) and polyaniline (75%). The XPS analysis revealed the adsorption mechanism due to the combined effect of both adsorption and reduction. Cr(VI) is adsorbed through electrostatic interactions while the = N-/-NH- group facilitated the in situ chemical reduction. The procured results make the LaPO4-PANI nanocomposite a promising adsorbent for the removal of Cr(VI).
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Affiliation(s)
- Sumanta Sahu
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, India
| | - Nisarani Bishoyi
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, India
| | - Manoj Kumar Sahu
- Department of Basic Science and Humanities, GIET University, Gunupur, 765022, India
| | - Raj Kishore Patel
- Department of Chemistry, National Institute of Technology, Rourkela, 769008, India.
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9
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Karthikeyan P, Elanchezhiyan SSD, Banu HAT, Hasmath Farzana M, Park CM. Hydrothermal synthesis of hydroxyapatite-reduced graphene oxide (1D-2D) hybrids with enhanced selective adsorption properties for methyl orange and hexavalent chromium from aqueous solutions. CHEMOSPHERE 2021; 276:130200. [PMID: 34088090 DOI: 10.1016/j.chemosphere.2021.130200] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 02/27/2021] [Accepted: 03/04/2021] [Indexed: 05/17/2023]
Abstract
The presence of organic dye molecules and heavy metal ions in water causes ecological and public health problems. Therefore, remediation of water/wastewater contaminated with organic dye molecules and toxic metal ions is of importance. Herein, a reduced graphene oxide (RGO)-hydroxyapatite (Hat) (1D-2D) hybrid composite was fabricated through a hydrothermal process and applied for the adsorption of methyl orange (MO) and hexavalent chromium (Cr(VI)) from water. The as-fabricated RGO-Hat hybrids were characterized using FTIR, XRD, HR-TEM, SEM, XPS, EDAX, and TGA-DSC analytical techniques. The influencing parameters of adsorption performance, namely solution pH, contact time, and co-interfering ions, were explored to obtain the maximum adsorption capacity of contaminants from the solid-liquid interface. Batch studies revealed that MO and Cr(VI) adsorption followed the pseudo-second-order kinetic and the Langmuir isotherm models. The adsorption capacity was 49.14 and 45.24 mg g-1 for MO and Cr(VI), respectively. The adsorption of such ions over RGO-Hat hybrids was mainly driven by several uptake mechanisms viz, electrostatic force of attraction, π-π interactions, and hydrogen bonding. Thus, this study demonstrated that the RGO-Hat hybrid is a potential candidate for the treatment of MO and Cr(VI) from water.
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Affiliation(s)
- Perumal Karthikeyan
- Department of Chemistry, The Gandhigram Rural Institute - Deemed to Be University, Gandhigram, 624 302, Dindigul, Tamil Nadu, India.
| | - S S D Elanchezhiyan
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
| | - Hyder Ali Thagira Banu
- Department of Chemistry, Secours Arts & Science College for Women, Dindigul, 624 002, Tamil Nadu, India.
| | - M Hasmath Farzana
- Department of Chemistry, The Madura College, Madurai, 625 011, Tamil Nadu, India.
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea.
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10
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Bayat A, Tati A, Ahmadipouya S, Haddadi SA, Arjmand M. Electrospun chitosan/polyvinyl alcohol nanocomposite holding polyaniline/silica hybrid nanostructures: An efficient adsorbent of dye from aqueous solutions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115734] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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11
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DABCO Derived Nitrogen-Doped Carbon Nanotubes for Oxygen Reduction Reaction (ORR) and Removal of Hexavalent Chromium from Contaminated Water. MATERIALS 2021; 14:ma14112871. [PMID: 34071937 PMCID: PMC8199063 DOI: 10.3390/ma14112871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/24/2021] [Accepted: 05/24/2021] [Indexed: 12/02/2022]
Abstract
Though chemically-derived reduced graphene oxide (CDG) from graphite oxide (GO) precursors is a widely practiced procedure for the large-scale production of graphene, the quality and quantity of thus obtained CDG is dependent on the reduction strategy used. In this work, we report an all-solid-state, residue-free, microwave process for the reduction of graphene oxide and subsequent growth of carbon nanotube ‘separators’ from a single precursor, namely DABCO (1,4-diazabicyclo[2.2.2]octane). The utility of our newly developed technique in efficiently and effectively reducing graphene oxide and in growing nitrogen-doped carbon nanotubes via catalysts like palladium and iron into unique mesoporous, 3-D hierarchical carbon nanostructures is demonstrated. The applicability of the thus obtained palladium embedded in Pd@NCNT-rGO nanoarchitectures for the oxygen reduction reaction (ORR) is investigated. When carbon fiber (CF) was used as the substrate, three-dimensional Fe@NCNT-CF were obtained, whose capability as versatile adsorbents for hexavalent chromium ion removal from contaminated waters was also demonstrated.
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12
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Ma XL, Fei GT, Xu SH. Synthesis of Polyaniline Coating on the Modified Fiber Ball and Application for Cr(VI) Removal. NANOSCALE RESEARCH LETTERS 2021; 16:58. [PMID: 33830397 PMCID: PMC8032843 DOI: 10.1186/s11671-021-03509-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
In this study, polyaniline (PANI) is prepared by means of chemical oxidization polymerization and directly loaded on the modified fiber ball (m-FB) to obtain macroscale polyaniline/modified fiber ball (PANI/m-FB) composite, and then its removal ability of Cr(VI) is investigated. The effects of different parameters such as contact time, pH value and initial concentration on Cr(VI) removal efficiency are discussed. The experimental results illustrate that the favorable pH value is 5.0 and the maximum removal capacity is measured to be 293.13 mg g-1. Besides, PANI/m-FB composites can be regenerated and reused after being treated with strong acid. The kinetic study indicates that the adsorption procedure is mainly controlled by chemical adsorption. More importantly, the macroscale of composites can avoid secondary pollution efficiently. Benefiting from the low cost, easy preparation in large scale, environmentally friendly, excellent recycling performance as well as high removal ability, PANI/m-FB composites exhibit a potential possibility to remove Cr(VI) from industrial waste water. The polyaniline (PANI) was coated on modified fiber ball (m-FB) to remove Cr(VI) in waste water, and this kind of PANI/m-FB composites can avoid secondary pollution efficiently due to its macrostructure. Furthermore, the removal capacity can reach to 291.13 mg/g and can be multiple reused.
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Affiliation(s)
- Xiao Li Ma
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031 People’s Republic of China
- University of Science and Technology of China, Hefei, 230026 People’s Republic of China
| | - Guang Tao Fei
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031 People’s Republic of China
| | - Shao Hui Xu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P. O. Box 1129, Hefei, 230031 People’s Republic of China
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13
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Senguttuvan S, Senthilkumar P, Janaki V, Kamala-Kannan S. Significance of conducting polyaniline based composites for the removal of dyes and heavy metals from aqueous solution and wastewaters - A review. CHEMOSPHERE 2021; 267:129201. [PMID: 33338713 DOI: 10.1016/j.chemosphere.2020.129201] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/02/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Dyes and heavy metals pollution have become a major environmental concern worldwide. Various methods, such as advanced oxidation, biodegradation, precipitation, flocculation, ultra filtration, ion-exchange, electro-chemical degradation and coagulation, have been proposed for the removal of dyes and heavy metals from contaminated wastewater. Of these methods, adsorption and detoxification are considered as the most promising and economically viable. Polyaniline-based composites, a material prepared by combining polyaniline with one or more similar or disimilar materials, have been reported as good adsorbents to remove and detoxify different groups of pollutants due to their unique physical and chemical properties. In the last decade, several studies have reported the effective adsorption (∼95%) of dyes and heavy metals onto polyaniline based composites. Furthermore, some polyaniline -composites reduced the adsorbed heavy metals into less toxic state. This review compiles the application of different polyaniline composites for adsorption and/or detoxifcation of dyes and heavy metals and documents composite preparation methods, morphology and properties of the composites, and mechanism of dyes and heavy metals adsorption. Based on the avilabile literature, this review suggests that more studies are warranted to understand the influence of various conditions and experimental variables on dyes and heavy metals removal from wastewater and/or aqueous solution.
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Affiliation(s)
- S Senguttuvan
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, 636011, Tamil Nadu, India
| | - P Senthilkumar
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, 636011, Tamil Nadu, India
| | - V Janaki
- Department of Chemistry, Sri Sarada College for Women, Salem, 636011, Tamil Nadu, India.
| | - S Kamala-Kannan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, South Korea.
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14
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Velusamy S, Roy A, Sundaram S, Kumar Mallick T. A Review on Heavy Metal Ions and Containing Dyes Removal Through Graphene Oxide-Based Adsorption Strategies for Textile Wastewater Treatment. CHEM REC 2021; 21:1570-1610. [PMID: 33539046 DOI: 10.1002/tcr.202000153] [Citation(s) in RCA: 160] [Impact Index Per Article: 53.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 01/11/2021] [Accepted: 01/12/2021] [Indexed: 11/09/2022]
Abstract
Textile wastewater heavy metal pollution has become a severe environmental problem worldwide. Metal ion inclusion in a dye molecule exhibits a bathochromic shift producing deeper but duller shades, which provides excellent colouration. The ejection of a massive volume of wastewater containing heavy metal ions such as Cr (VI), Pb (II), Cd (II) and Zn (II) and metal-containing dyes are an unavoidable consequence because the textile industry consumes large quantities of water and all these chemicals cannot be combined entirely with fibres during the dyeing process. These high concentrations of chemicals in effluents interfere with the natural water resources, cause severe toxicological implications on the environment with a dramatic impact on human health. This article reviewed the various metal-containing dye types and their heavy metal ions pollution from entryway to the wastewater, which then briefly explored the effects on human health and the environment. Graphene-based absorbers, specially graphene oxide (GO) benefits from an ordered structured, high specific surface area, and flexible surface functionalization options, which are indispensable to realize a high performance of heavy metal ion removal. These exceptional adsorption properties of graphene-based materials support a position of ubiquity in our everyday lives. The collective representation of the textile wastewater's effective remediation methods is discussed and focused on the GO-based adsorption methods. Understanding the critical impact regarding the GO-based materials established adsorption portfolio for heavy metal ions removal are also discussed. Various heavy-metal ions and their pollutant effect, ways to remove such heavy metal ions and role of graphene-based adsorbent including their demand, perspective, limitation, and relative scopes are discussed elaborately in the review.
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Affiliation(s)
- Sasireka Velusamy
- Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, U.K
| | - Anurag Roy
- Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, U.K
| | - Senthilarasu Sundaram
- Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, U.K
| | - Tapas Kumar Mallick
- Environment and Sustainability Institute, University of Exeter, Penryn Campus, Cornwall, TR10 9FE, U.K
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Tian H, Sun M, Zai J, Chen M, Li W, Hu J, Ali N, He K, Xin Z, Qian X. Interlocked 3D active carbon fibers and monolithic I-doped Bi 2O 2CO 3 structure built by 2D face-to-face interaction: endowed with cycling stability and photocatalytic activity. CrystEngComm 2021. [DOI: 10.1039/d1ce00290b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photocatalysis is considered a remarkable green method in the catalytic degradation of wastewater; however, the collection and loading of the powdered catalyst is still a problem.
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16
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Goddeti SMR, Maity A, Ray SS. Polypyrrole-coated gum ghatti-grafted poly(acrylamide) composite for the selective removal of hexavalent chromium from waste water. Int J Biol Macromol 2020; 164:2851-2860. [DOI: 10.1016/j.ijbiomac.2020.07.324] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
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17
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Li J, Li M, Wang S, Yang X, Liu F, Liu X. Key role of pore size in Cr(VI) removal by the composites of 3-dimentional mesoporous silica nanospheres wrapped with polyaniline. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 729:139009. [PMID: 32380329 DOI: 10.1016/j.scitotenv.2020.139009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/23/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
A series of three-dimensional silica nanospheres with different pore sizes was synthesized in a biphasic oil-water system and their pore dimensions were adjusted by controlling the composition of the oil phase. The silica nanospheres were then wrapped with polyaniline, characterized, and the obtained silica nanosphere-polyaniline composites were used for the removal of Cr(VI). Polyaniline was generated by the polymerization of aniline. The mesoporous silica has sufficient dendritic pore channels and offers a large contact surface for the polymerization of aniline. Furthermore, the mesoporous silica nanospheres are beneficial for dispersing polyaniline and transferring aqueous Cr(VI). The silica nanosphere-polyaniline composite with the largest pore size (~15.4 nm) showed the best Cr(VI) removal performance. We also investigated the kinetic characteristics and the result could be fitted to the pseudo-second-order kinetic model. Moreover, we demonstrate that the composites maintain a high Cr(VI) removal efficiency compared to other anions (H2PO4-, SO42-, etc.), indicating their good prospect in practical wastewater treatment. Remarkably, the silica-polyaniline composites showed enhanced Cr(VI) removal efficiency under UV-irradiation. The effects of electrons and H+ on Cr(VI) reduction are also discussed based on the results of UV-vis and X-ray photoelectron spectroscopic studies and bath experiments (influence of pH on adsorption capacity). Mechanistic studies indicate that the Cr(VI) removal occurs in two stages-adsorption and reduction. The negatively charged aqueous Cr(VI) species first interact with the positively charged protonated amine groups via electrostatic attraction, and are then further reduced to less-toxic Cr(III) by the electrons and H+ donated by the amine groups on polyaniline.
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Affiliation(s)
- Jiacheng Li
- School of Environment, Tsinghua University, Hai Dian Distract, Beijing 100084, China
| | - Miao Li
- School of Environment, Tsinghua University, Hai Dian Distract, Beijing 100084, China.
| | - Sai Wang
- School of Environment, Tsinghua University, Hai Dian Distract, Beijing 100084, China
| | - Xu Yang
- School of Environment, Tsinghua University, Hai Dian Distract, Beijing 100084, China
| | - Fang Liu
- School of Environment, Tsinghua University, Hai Dian Distract, Beijing 100084, China
| | - Xiang Liu
- School of Environment, Tsinghua University, Hai Dian Distract, Beijing 100084, China
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18
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Conducting macroporous polyaniline/poly(vinyl alcohol) aerogels for the removal of chromium(VI) from aqueous media. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01151-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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19
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Li L, Xu Y, Zhong D. Highly Efficient Adsorption and Reduction of Cr(VI) Ions by a Core–Shell Fe3O4@UiO-66@PANI Composite. J Phys Chem A 2020; 124:2854-2862. [DOI: 10.1021/acs.jpca.0c00269] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lincheng Li
- School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
| | - Yunlan Xu
- School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
| | - Dengjie Zhong
- School of Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China
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20
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Ravikumar KVG, Debayan G, Mrudula P, Chandrasekaran N, Amitava M. In situ formation of bimetallic FeNi nanoparticles on sand through green technology: Application for tetracycline removal. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 2020; 14:16. [DOI: 10.1007/s11783-019-1195-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/14/2019] [Accepted: 10/21/2019] [Indexed: 10/26/2023]
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21
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Kumar A, Gahoi P, Verma N. Simultaneous scavenging of Cr(VI) from soil and facilitation of nutrient uptake in plant using a mixture of carbon microfibers and nanofibers. CHEMOSPHERE 2020; 239:124760. [PMID: 31518923 DOI: 10.1016/j.chemosphere.2019.124760] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/24/2019] [Accepted: 09/03/2019] [Indexed: 05/14/2023]
Abstract
Plant growth and yield are adversely affected by the uptake of toxic hexavalent chromium (Cr(VI)) from soil. The present study describes a facile technique to minimize the uptake of Cr(VI) by chickpea (Cicer arietinum) plant from soil using microporous activated carbon microfiber (ACF). Simultaneously, nano-sized carbon nanofibers (CNFs), grown over the ACF substrate, are used as an efficient carrier of the Cu micronutrient from soil to root, shoot and leaf of the plants. Adsorption, seed germination and plant growth experiments are performed in Cr-stressed medium. The ACF, used as the adsorbent for Cr(VI) in metal-stressed soil (100 mg Cr kg-1 of soil) shows the metal loading of ∼23 mg g-1. Cr(VI) up to 50 mg L-1 concentration causes no stress during germination of chickpea seeds in Murashige and Skoog (MS) medium. A dose of 500 mg-mixture (treatment) per kg-soil increases root and shoot lengths by 52 and 11%, respectively than the control, during plant growth in the metal-stressed soil, attributed to an effective translocation of Cu-CNF through plant cells. Whereas Cr uptake by plant decrease to ∼46%, Cu uptake increase up to ∼120% in comparison to control by the mixture treatment. Protein and chlorophyll contents also significantly increased (*p < 0.05) with the application of treatment. The data clearly show that the mixture of ACF and Cu-CNF can be successfully used for the simultaneous scavenging of Cr(VI) from soil by adsorption over ACF and increased uptake of Cu by plants using the CNFs as the micronutrient carrier.
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Affiliation(s)
- Arun Kumar
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Parul Gahoi
- Centre for Environment Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Nishith Verma
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India; Centre for Environment Science and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India.
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Jin L, Chai L, Ren L, Jiang Y, Yang W, Wang S, Liao Q, Wang H, Zhang L. Enhanced adsorption-coupled reduction of hexavalent chromium by 2D poly(m-phenylenediamine)-functionalized reduction graphene oxide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:31099-31110. [PMID: 31452128 DOI: 10.1007/s11356-019-06175-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
To improve the mass transfer efficiency of poly(m-phenylenediamine) for the effective removal of hexavalent chromium (Cr (VI)) from aqueous solution, a facile and one-step method to prepare two-dimensional poly(m-phenylenediamine) functionalized reduction graphene oxide (rGO-PmPD) by dilution polymerization is developed. The structure and morphology of rGO-PmPD as well as rGO and PmPD were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), Brunauer-Emmett-Teller (BET), Fourier-transformed infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), Raman, and X-ray diffraction (XRD). The preparation mechanism, adsorption performance, and mechanism of rGO-PmPD were then investigated in detail. The obtained rGO-PmPD exhibited thin 2D nanosheet morphology with much improved specific surface area and pore volume (18 and 25 times higher than that of PmPD, respectively). The Cr (VI) adsorption of rGO-PmPD was fitted well with the pseudo-second-order kinetic model and Langmuir isotherm model, and the maximum adsorption capacity of rGO-PmPD reached 588.26 mg g-1, higher than that of PmPD (400 mg g-1) and rGO (156.25 mg g-1). Moreover, the regeneration efficiency of the rGO-PmPD nanosheet is also promising that the adsorption performance after five times of adsorption-desorption cycles still maintains more than 530 mg g-1. The removal mechanism involved reduction coupled with adsorption and electrostatic interaction between rGO-PmPD and Cr (VI), and ~ 65% of Cr (VI) removal was attributed to reduction and ~ 35% was ascribed to adsorption and electrostatic interaction. This study thus provides a simple and effective route to achieve high accessible surface area of adsorbent materials with enhanced mass transfer efficiency and thereafter improved adsorption performance.
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Affiliation(s)
- Linfeng Jin
- Department of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Liyuan Chai
- Department of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, 410083, China
- Chinese National Engineering Research Center for Control and Treatment of Heavy Metals Pollution, Changsha, 410083, China
| | - Lili Ren
- Department of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Yuxin Jiang
- Department of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Weichun Yang
- Department of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, 410083, China
- Chinese National Engineering Research Center for Control and Treatment of Heavy Metals Pollution, Changsha, 410083, China
| | - Sheng Wang
- Chinese National Engineering Research Center for Control and Treatment of Heavy Metals Pollution, Changsha, 410083, China
| | - Qi Liao
- Department of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, 410083, China
- Chinese National Engineering Research Center for Control and Treatment of Heavy Metals Pollution, Changsha, 410083, China
| | - Haiying Wang
- Department of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha, 410083, China.
- Chinese National Engineering Research Center for Control and Treatment of Heavy Metals Pollution, Changsha, 410083, China.
| | - Liyuan Zhang
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, 14476, Potsdam, Germany.
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23
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Artificial Neural Networks (ANNs) and Response Surface Methodology (RSM) Approach for Modelling the Optimization of Chromium (VI) Reduction by Newly Isolated Acinetobacter radioresistens Strain NS-MIE from Agricultural Soil. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5785387. [PMID: 31240217 PMCID: PMC6556361 DOI: 10.1155/2019/5785387] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/16/2019] [Accepted: 04/30/2019] [Indexed: 12/30/2022]
Abstract
Numerous technologies and approaches have been used in the past few decades to remove hexavalent chromium (Cr[VI]) in wastewater and the environment. However, these conventional technologies are not economical and efficient in removing Cr(VI) at a very low concentration (1-100 ppm). As an alternative, the utilization of bioremediation techniques which uses the potential of microorganisms could represent an effective technique for the detoxification of Cr(VI). In this study, we reported a newly isolated bacterium identified as Acinetobacter radioresistens sp. NS-MIE from Malaysian agricultural soil. The chromate reduction potential of strain NS-MIE was optimized using RSM and ANN techniques. The optimum condition predicted by RSM for the bacterium to reduce hexavalent chromium occurred at pH 6, 10 g/L ppm of nutrient broth (NB) concentration and 100 ppm of chromate concentration while the optimum condition predicted by ANN is at pH 6 and 10 g/L of NB concentration and of 60 ppm of chromate concentration with chromate reduction (%) of 75.13 % and 96.27 %, respectively. The analysis by the ANN model shows better prediction data with a higher R2 value of 0.9991 and smaller average absolute deviation (AAD) and root mean square error (RMSE) of 0.33 % and 0.302 %, respectively. Validation analysis showed the predicted values by RSM and ANN were close to the validation values, whereas the ANN showed the lowest deviation, 2.57%, compared to the RSM. This finding suggests that the ANN showed a better prediction and fitting ability compared to the RSM for the nonlinear regression analysis. Based on this study, A. radioresistens sp. NS-MIE exhibits strong potential characteristics as a candidate for the bioremediation of hexavalent chromium in the environment.
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25
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Huang J, Cao Y, Wen H, Zhang J, Wang H, Yu H, Peng F. Unraveling the intrinsic enhancement of fluorine doping in the dual-doped magnetic carbon adsorbent for the environmental remediation. J Colloid Interface Sci 2019; 538:327-339. [DOI: 10.1016/j.jcis.2018.12.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 11/28/2018] [Accepted: 12/01/2018] [Indexed: 12/24/2022]
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26
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Magnetic arginine-functionalized polypyrrole with improved and selective chromium(VI) ions removal from water. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.11.032] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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27
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Adsorption modeling and mechanistic insight of hazardous chromium on para toluene sulfonic acid immobilized-polyaniline@CNTs nanocomposites. JOURNAL OF SAUDI CHEMICAL SOCIETY 2019. [DOI: 10.1016/j.jscs.2018.06.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Nannuri SH, Kulkarni SD, K. SC, Chidangil S, George SD. Post annealing induced manipulation of phase and upconversion luminescence of Cr3+ doped NaYF4:Yb,Er crystals. RSC Adv 2019; 9:9364-9372. [PMID: 35520751 PMCID: PMC9062064 DOI: 10.1039/c9ra00115h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/15/2019] [Indexed: 11/21/2022] Open
Abstract
The role of post synthesis annealing at different temperatures (200–600 °C) on the structural as well as luminescence properties of NaY80%F4:Yb17%,Er3% prepared via a coprecipitation method was found to change the structure from a cubic to hexagonal phase with a concomitant increase in upconversion luminescence by 12 times for the green region and 17 times for the red region. Addition of the Cr3+ ions (5–20 mol%) into the host followed by post annealing at 200–600 °C causes that the samples to exhibit phase dependent and upconversion luminescence behavior that depend upon the doping concentration as well as the annealing temperature. The inductively coupled optical emission spectroscopy reveals that only 1/600 times of the desired volume of the co-dopant goes to the lattice and it can manifest visible spectral changes in the diffuse reflectance spectra of the samples. The samples co-doped with Cr3+ ion concentrations of 10–15% and post-annealed at 600 °C were found to have maximum emission with an enhancement factor of 24 for the green region and 33 for the red region. In addition, the laser power dependent studies reveal that even for the power density levels 3.69 W cm−2 to 32.14 W cm−2, the samples are in the saturation regime and most of the samples investigated here follow a single photon process, and a few samples show a slope value less than 1 for laser power dependent intensity plots. The results show the remarkable promise of controlled tailoring of the properties of upconversion crystals via post annealing and co-doping. Co-dopant (Cr3+ ion) concentration as well as post annealing found to change the structural as well as luminescence properties of Cr3+ ion doped NaY80%F4:Yb17%,Er3% prepared via a co-precipitation method.![]()
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Affiliation(s)
- Shivanand H. Nannuri
- Department of Atomic and Molecular Physics
- Manipal Academy of Higher Education
- Manipal
- India-576104
| | - Suresh D. Kulkarni
- Department of Atomic and Molecular Physics
- Manipal Academy of Higher Education
- Manipal
- India-576104
- Centre for Applied Nanosciences
| | - Subash C. K.
- School of Nanoscience and Technology
- National Institute of Technology
- Calicut
- India-673601
| | - Santhosh Chidangil
- Department of Atomic and Molecular Physics
- Manipal Academy of Higher Education
- Manipal
- India-576104
- Centre for Biophotonics
| | - Sajan D. George
- Department of Atomic and Molecular Physics
- Manipal Academy of Higher Education
- Manipal
- India-576104
- Centre for Applied Nanosciences
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29
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Wang P, Dong F, Liu M, He H, Huo T, Zhou L, Zhang W. Improving photoelectrochemical reduction of Cr(VI) ions by building α-Fe 2O 3/TiO 2 electrode. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:22455-22463. [PMID: 29460249 DOI: 10.1007/s11356-018-1382-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Accepted: 01/24/2018] [Indexed: 06/08/2023]
Abstract
Photoelectrochemical process is an environmentally friendly technology and has a wide application in the control of environmental pollutants. Efficient nanophotocatalysts responsive to visible light are still highly attractive. In this work, α-Fe2O3/TiO2 were grown on fluorine doped tin oxide (FTO) substrates by hydrothermal method for photoelectrochemical reduction of Cr(VI). Compared with the separate α-Fe2O3 and TiO2 electrodes, the composite α-Fe2O3/TiO2 electrodes show higher photocurrent density. Under visible light irradiation, 100% removal efficiency of Cr(VI) was obtained after 40 min treatment. The composite α-Fe2O3/TiO2 electrodes showed an enhanced absorbance in visible light region and had good stability to photoelectrochemical reduction of Cr(VI). The role of hole scavengers (citric acid and oxalic acid) and pH values was systematically investigated. This novel intensification approach provides new insight on the application of photoelectrochemical reduction in environmental remediation.
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Affiliation(s)
- Pingping Wang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China.
| | - Mingxue Liu
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Huichao He
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Tingting Huo
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Lei Zhou
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Wei Zhang
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
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30
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Hu Q, Sun J, Sun D, Tian L, Ji Y, Qiu B. Simultaneous Cr(VI) bio-reduction and methane production by anaerobic granular sludge. BIORESOURCE TECHNOLOGY 2018; 262:15-21. [PMID: 29689436 DOI: 10.1016/j.biortech.2018.04.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 04/12/2018] [Accepted: 04/14/2018] [Indexed: 06/08/2023]
Abstract
Wastewater containing toxic hexavalent chromium (Cr(VI)) were treated with well-organized anaerobic granular sludge in this study. Results showed that the anaerobic granular sludge rapidly removed Cr(VI), and 2000 µg·L-1 Cr(VI) was completely eliminated within 6 min, which was much faster than the reported duration of removal by reported artificial materials. Sucrose added as a carbon source acted as an initial electron donor to reduce Cr(VI) to Cr(III). This process was considered as the main mechanism of Cr(VI) removal. Methane production by anaerobic granular sludge was improved by the addition of Cr(VI) at a concentration lower than 500 µg·L-1. Anaerobic granular sludge had a well-organized structure, which presented good resistance against toxic Cr(VI). Trichoccus accelerated the degradation of organic substances to generate acetates with a low Cr(VI) concentration, thereby enhancing methane production by acetotrophic methanogens.
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Affiliation(s)
- Qian Hu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Jiaji Sun
- School of Environment, Beijing Normal University, Beijing 100875, China
| | - Dezhi Sun
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Lan Tian
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Yanan Ji
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Bin Qiu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
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31
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Hayashi N, Chen J, Seko N. Nitrogen-Containing Fabric Adsorbents Prepared by Radiation Grafting for Removal of Chromium from Wastewater. Polymers (Basel) 2018; 10:E744. [PMID: 30960669 PMCID: PMC6404098 DOI: 10.3390/polym10070744] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/03/2018] [Accepted: 07/04/2018] [Indexed: 11/16/2022] Open
Abstract
To remove chromium from wastewater effectively, two types of nitrogen-containing fabric adsorbents, having amidoxime ligand groups and quaternary ammonium anion exchange groups, respectively, were prepared by radiation grafting. In brief, the amidoxime adsorbent is obtained by grafting of acrylonitrile (AN)/methacrylic acid (MAA) onto a nonwoven fabric and subsequent amidoximation with hydroxylamine, while the ammonium adsorbent is obtained by grafting of chloromethylstyrene (CMS) followed by quaternization with trimethylamine. The AN/MAA-grafting reaches a high degree of grafting more than 100%, and the resulting amidoxime adsorbent reaches a high amidoxime density of 4.53 mmol/g. On the other hand, the CMS-grafting reaches a much higher degree of grafting above 200%, and the resulting ammonium adsorbent reaches a high ammonium density of 3.51 mmol/g. FTIR/ATR and TGA/DTA are used for the characterization of the grafted fabrics as well as the relevant fabric adsorbents. Furthermore, the chromium removal of the prepared fabric adsorbent is tested in both batch and column modes. It has been confirmed that the chromium removal was largely dependent on the pH of the solution. At pH 5.0, the amidoxime adsorbent shows a high Cr(III) adsorption capacity of 31.68 mg/g, while the ammonium adsorbent shows a much higher Cr(VI) adsorption capacity of 130.65 mg/g.
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Affiliation(s)
- Natsuki Hayashi
- Department of Advanced Functional Materials Research, Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 1233 Watanuki-machi, Takasaki, Gunma 370-1292, Japan.
- School of Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu, Gunma 376-8516, Japan.
| | - Jinhua Chen
- Department of Advanced Functional Materials Research, Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 1233 Watanuki-machi, Takasaki, Gunma 370-1292, Japan.
| | - Noriaki Seko
- Department of Advanced Functional Materials Research, Takasaki Advanced Radiation Research Institute, National Institutes for Quantum and Radiological Science and Technology (QST), 1233 Watanuki-machi, Takasaki, Gunma 370-1292, Japan.
- School of Science and Technology, Gunma University, 1-5-1 Tenjin, Kiryu, Gunma 376-8516, Japan.
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32
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Ghasemi N, Ghasemi M, Moazeni S, Ghasemi P, Alharbi NS, Gupta VK, Agarwal S, Burakova IV, Tkachev AG. Zn (II) removal by amino-functionalized magnetic nanoparticles: Kinetics, isotherm, and thermodynamic aspects of adsorption. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.01.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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33
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Hu Z, Shao Q, Huang Y, Yu L, Zhang D, Xu X, Lin J, Liu H, Guo Z. Light triggered interfacial damage self-healing of poly(p-phenylene benzobisoxazole) fiber composites. NANOTECHNOLOGY 2018; 29:185602. [PMID: 29451119 DOI: 10.1088/1361-6528/aab010] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The interfacial microcracks in the resin matrix composites are difficult to be detected and repaired. However, the self-healing concept provides opportunities to fabricate composites with unusual properties. In the present study, photothermal conversion Ag-Cu2S nanoparticles were immobilized onto poly(p-phenylene benzobisoxazole) (PBO) fibers via a polydopamine chemistry. Benefitting from the photothermal effects of Ag-Cu2S, the obtained PBO fibers (Ag-Cu2S-PBO) efficiently converted the light energy into heat under Xenon lamp irradiation. Then, single PBO fiber composites were prepared using thermoplastic polyurethane as the matrix. It was found that the interfacial damage caused by single fiber pull-out was simply self-healed by Xe light irradiation. This wonderful interfacial damage self-healing property was mainly attributed to the in situ heating generation via photothermal effects of Ag-Cu2S in the composite interface. This paper reports a novel strategy to construct advanced composites with light-triggered self-healing properties, which will provide inspiration for preparing high performance composite materials.
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Affiliation(s)
- Zhen Hu
- School of Chemistry and Chemical Engineering, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, Harbin Institute of Technology, Harbin 150001, People's Republic of China
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34
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Dey S, Podder S, Roychowdhury A, Das D, Ghosh CK. Facile synthesis of hierarchical nickel (III) oxide nanostructure: A synergistic remediating action towards water contaminants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 211:356-366. [PMID: 29427928 DOI: 10.1016/j.jenvman.2018.01.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 12/27/2017] [Accepted: 01/04/2018] [Indexed: 06/08/2023]
Abstract
Heavy metal ion removal from consumable water is an indispensable need to maintain healthy life. Therefore cost effective and highly efficient sorbents are strongly needed to pose threat to real water pollution. Nanomaterials are widely used to maintain clean aqueous system in a very cost effective way with high removal efficiency. In this present work, pure coral like Ni2O3 nanostructures were prescribed for Cr(VI) remediation which were prepared by two step synthesis procedure at room temperature. The single hierarchical morphology as confirmed from HRTEM (size∼200 nm) were subjected to toxic Cr(VI) ion removal experiments. They were found to remove ∼65% Cr(VI) ions that was higher than that of pure Ni2O3 nanoparticles of comparable size. The enhanced properties were explained on the basis of the defect states present within the nanostructure, investigated by positron annihilation lifetime spectroscopy (PALS). It was found that the hierarchical nanostructure had more number of di-vacancies and vacancy-clusters as compared to the particles. On performing isotherm fitting, it was found that the coral like morphology had a high heterogeneity factor that aided to a high adsorption rate when compared to the pure Ni2O3 nanoparticles (which had a homogenous surface). The synthesized nanostructure was severely toxic to bacterial community having minimum inhibitory concentration (MIC) of ∼300 μg/L. Also the nanostructure exhibited dual functionality towards Cr(VI) and bacteria contaminated water at 200 μg/ml. The maximum Cr(VI) removal efficiency for this dual system is found to be 39% whereas antibacterial activity was turned out to be 30% which was extensively higher than that of toxic Cr(VI) ions. A plausible mechanism for the dual functionality was also predicted.
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Affiliation(s)
- Sayan Dey
- School of Materials Science and Nanotechnology, Jadavpur University, Kolkata, 700032, India
| | - Soumik Podder
- School of Materials Science and Nanotechnology, Jadavpur University, Kolkata, 700032, India.
| | - A Roychowdhury
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata, 700098, India; Department of Physics, Krishnath College, Berhampore, 742101, India
| | - Dipankar Das
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata, 700098, India
| | - Chandan Kr Ghosh
- School of Materials Science and Nanotechnology, Jadavpur University, Kolkata, 700032, India
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35
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Jiang Y, Liu Z, Zeng G, Liu Y, Shao B, Li Z, Liu Y, Zhang W, He Q. Polyaniline-based adsorbents for removal of hexavalent chromium from aqueous solution: a mini review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:6158-6174. [PMID: 29307070 DOI: 10.1007/s11356-017-1188-3] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 12/28/2017] [Indexed: 06/07/2023]
Abstract
Hexavalent chromium (Cr(VI)) is a common hazardous contaminant in the environment and carcinogenic or mutagenic to aquatic animals and human beings. Therefore, the removal and detoxification of Cr(VI) have been attracting increasing attention of researchers. Among various conducting polymers, polyaniline (PANI)-based adsorbents have shown an excellent performance on the removal of Cr(VI) because of their redox properties, eased synthesis, and favorable biocompatibility. In this review, the characteristics of various PANI-based adsorbents were described, including PANI-modified nanofiber mats and membranes, PANI/bio-adsorbents, PANI/magnetic adsorbents, PANI/carbon adsorbents, PANI-modified clay composites, and PANI-inorganic hybrid composites. The mechanisms for the detoxification and adsorption of Cr(VI) were also discussed. The results indicated the potential applications of PANI-based adsorbents for the removal of Cr(VI). Graphical abstract ᅟ.
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Affiliation(s)
- Yilin Jiang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China
| | - Zhifeng Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China.
| | - Yujie Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China
| | - Binbin Shao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China
| | - Zhigang Li
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China
| | - Yang Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China
| | - Wei Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China
| | - Qingyun He
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan, 410082, China
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36
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Long B, Ye B, Liu Q, Zhang S, Ye J, Zou L, Shi J. Characterization of Penicillium oxalicum SL2 isolated from indoor air and its application to the removal of hexavalent chromium. PLoS One 2018; 13:e0191484. [PMID: 29381723 PMCID: PMC5790237 DOI: 10.1371/journal.pone.0191484] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 01/05/2018] [Indexed: 02/06/2023] Open
Abstract
Removal of toxic Cr(VI) by microbial reduction is a promising approach to reducing its ecotoxicological impact. To develop bioremediation technologies, many studies have evaluated the application of microorganisms isolated from Cr(VI)-contaminated sites. Nonetheless, little attention has been given to microbes from the environments without a history of Cr(VI) contamination. In this study, we aimed to characterize the Cr(VI) tolerance and removal abilities of a filamentous fungus strain, SL2, isolated from indoor air. Based on phenotypic characterization and rDNA sequence analysis, SL2 was identified as Penicillium oxalicum, a species that has not been extensively studied regarding Cr(VI) tolerance and reduction abilities. SL2 showed high tolerance to Cr(VI) on solid and in liquid media, facilitating its application to Cr(VI)-contaminated environments. Growth curves of SL2 in the presence of 0, 100, 400, or 1000 mg/L Cr(VI) were well simulated by the modified Gompertz model. The relative maximal colony diameter and maximal growth rate decreased as Cr(VI) concentration increased, while the lag time increased. SL2 manifested remarkable efficacy of removing Cr(VI). Mass balance analysis indicated that SL2 removed Cr(VI) by reduction, and incorporated 0.79 mg of Cr per gram of dry biomass. In electroplating wastewater, the initial rate of Cr(VI) removal was affected by the initial contaminant concentration. In conclusion, P. oxalicum SL2 represents a promising new candidate for Cr(VI) removal. Our results significantly expand the knowledge on potential application of this microorganism.
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Affiliation(s)
- Bibo Long
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Binhui Ye
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Qinglin Liu
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Shu Zhang
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jien Ye
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Lina Zou
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang Province, China
| | - Jiyan Shi
- Department of Environmental Engineering, Zhejiang University, Hangzhou, Zhejiang Province, China
- Key Laboratory for Water Pollution Control and Environmental Safety, Hangzhou, Zhejiang Province, China
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37
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Singh SP, Rathinam K, Kasher R, Arnusch CJ. Hexavalent chromium ion and methyl orange dye uptake via a silk protein sericin–chitosan conjugate. RSC Adv 2018; 8:27027-27036. [PMID: 35540018 PMCID: PMC9083351 DOI: 10.1039/c8ra03907k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/24/2018] [Indexed: 11/21/2022] Open
Abstract
Sericin, a protein waste product of the silk industry, was crosslinked with chitosan, and a chitosan–sericin conjugate (CS) was prepared, characterized and used to remove hexavalent chromium (Cr(vi)) ions and methyl orange (MO) dye from aqueous solutions. The CS was shown to effectively remove Cr(vi) ions and MO dye at maximum adsorption capacities (Langmuir) of 139 mg g−1 for Cr(vi) ions and 385 mg g−1 for MO dye. Moreover, the adsorption of both Cr(vi) ions and MO dye was highly pH dependent and varied under different experimental conditions. Cr(vi) ion and MO dye uptake by the CS was confirmed by attenuated total reflectance Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy (XPS) and energy dispersive spectrometry analysis. Additionally, XPS analysis of the Cr(vi)-loaded CS revealed that Cr(vi) was reduced to the less toxic Cr(iii). The CS was shown not only to be highly amenable to regeneration, but also to be able to effectively remove MO dye and Cr(vi) ions from a binary mixture. Sericin, a protein waste product of the silk industry, was crosslinked with chitosan, and a chitosan–sericin conjugate (CS) was prepared, characterized and used to remove hexavalent chromium (Cr(vi)) ions and methyl orange dye from aqueous solutions.![]()
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Affiliation(s)
- Swatantra Pratap Singh
- Department of Desalination and Water Treatment
- Zuckerberg Institute for Water Research
- The Blaustein Institutes for Desert Research
- Ben-Gurion University of the Negev, Sede Boqer Campus
- Israel
| | - Karthik Rathinam
- Department of Desalination and Water Treatment
- Zuckerberg Institute for Water Research
- The Blaustein Institutes for Desert Research
- Ben-Gurion University of the Negev, Sede Boqer Campus
- Israel
| | - Roni Kasher
- Department of Desalination and Water Treatment
- Zuckerberg Institute for Water Research
- The Blaustein Institutes for Desert Research
- Ben-Gurion University of the Negev, Sede Boqer Campus
- Israel
| | - Christopher J. Arnusch
- Department of Desalination and Water Treatment
- Zuckerberg Institute for Water Research
- The Blaustein Institutes for Desert Research
- Ben-Gurion University of the Negev, Sede Boqer Campus
- Israel
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38
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Jia MY, Xu LS, Li Y, Yao CL, Jin XJ. Synthesis and characterization of graphene/carbonized paper/tannic acid for flexible composite electrodes. NEW J CHEM 2018. [DOI: 10.1039/c8nj02898b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and low-cost approach toward flexible and free-standing electrodes is developed.
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Affiliation(s)
- Meng-Ying Jia
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University
- Beijing
- China
| | - Lan-Shu Xu
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University
- Beijing
- China
| | - Yue Li
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University
- Beijing
- China
| | - Chun-Li Yao
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University
- Beijing
- China
| | - Xiao-Juan Jin
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, Beijing Forestry University
- Beijing
- China
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39
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Sahu S, Sahu UK, Patel RK. Synthesis of thorium–ethanolamine nanocomposite by the co-precipitation method and its application for Cr(vi) removal. NEW J CHEM 2018. [DOI: 10.1039/c7nj05074g] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Studies on the adsorption of Cr(vi) from water by a thorium ethanolamine nanocomposite.
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Affiliation(s)
- Sumanta Sahu
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Uttam Kumar Sahu
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
| | - Raj Kishore Patel
- Department of Chemistry
- National Institute of Technology
- Rourkela
- India
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40
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Enhanced Performance for Treatment of Cr (VI)-Containing Wastewater by Microbial Fuel Cells with Natural Pyrrhotite-Coated Cathode. WATER 2017. [DOI: 10.3390/w9120979] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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41
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Huang J, Cao Y, Shao Q, Peng X, Guo Z. Magnetic Nanocarbon Adsorbents with Enhanced Hexavalent Chromium Removal: Morphology Dependence of Fibrillar vs Particulate Structures. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02835] [Citation(s) in RCA: 250] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiangnan Huang
- School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Yonghai Cao
- School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
- School
of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Qian Shao
- College
of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China
| | - Xiangfang Peng
- School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Zhanhu Guo
- Integrated
Composites Laboratory (ICL), Department of Chemical and Biomolecular
Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
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42
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43
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Qureshi MI, Patel F, Al-Baghli N, Abussaud B, Tawabini BS, Laoui T. A Comparative Study of Raw and Metal Oxide Impregnated Carbon Nanotubes for the Adsorption of Hexavalent Chromium from Aqueous Solution. Bioinorg Chem Appl 2017; 2017:1624243. [PMID: 28487625 PMCID: PMC5402250 DOI: 10.1155/2017/1624243] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/12/2017] [Accepted: 03/16/2017] [Indexed: 11/17/2022] Open
Abstract
The present study reports the use of raw, iron oxide, and aluminum oxide impregnated carbon nanotubes (CNTs) for the adsorption of hexavalent chromium (Cr(VI)) ions from aqueous solution. The raw CNTs were impregnated with 1% and 10% loadings (weight %) of iron oxide and aluminum oxide nanoparticles using wet impregnation technique. The synthesized materials were characterized using scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). Batch adsorption experiments were performed to assess the removal efficiency of Cr(VI) ions from water and the effects of pH, contact time, adsorbent dosage, and initial concentration of the Cr(VI) ions were investigated. Results of the study revealed that impregnated CNTs achieved significant increase in the removal efficiency of Cr(VI) ions compared to raw CNTs. In fact, both CNTs impregnated with 10% loading of iron and aluminum oxides were able to remove up to 100% of Cr(VI) ions from aqueous solution. Isotherm studies were carried out using Langmuir and Freundlich isotherm models. Adsorption kinetics of Cr(VI) ions from water was found to be well described by the pseudo-second-order model. The results suggest that metallic oxide impregnated CNTs have very good potential application in the removal of Cr(VI) ions from water resulting in better environmental protection.
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Affiliation(s)
| | - Faheemuddin Patel
- Department of Mechanical Engineering, KFUPM, Dhahran 31261, Saudi Arabia
| | - Nadhir Al-Baghli
- Department of Chemical Engineering, KFUPM, Dhahran 31261, Saudi Arabia
| | - Basim Abussaud
- Department of Chemical Engineering, KFUPM, Dhahran 31261, Saudi Arabia
| | | | - Tahar Laoui
- Department of Mechanical Engineering, KFUPM, Dhahran 31261, Saudi Arabia
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44
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Zhou T, Li C, Jin H, Lian Y, Han W. Effective Adsorption/Reduction of Cr(VI) Oxyanion by Halloysite@Polyaniline Hybrid Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2017; 9:6030-6043. [PMID: 28121121 DOI: 10.1021/acsami.6b14079] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Halloysite@polyaniline (HA@PANI) hybrid nanotubes are synthesized by the in situ chemical polymerization of aniline on halloysite clay nanotubes. By facilely tuning the dopant acid, pH, and apparent weight proportion for aniline (ANI) and halloysite (HA) nanotubes in the synthesis process, PANI with tuned oxidation state, doping extent, and content are in situ growing on halloysite nanotubes. The reaction system's acidity is tuned by dopant acid, such as HCl, H2SO4, HNO3, and H3PO4. The adsorption result shows the fabricated HA@PANI hybrid nanotubes can effectively adsorb Cr(VI) oxyanion and the adsorption ability changes according to the dopant acid, pH, and apparent weight proportion for ANI and HA in the synthesis process. Among them, the HA@PANI fabricated with HCl as dopant acid tuning the pH at 0.5 and 204% apparent weight proportion for ANI and HA (HP/0.5/204%-HCl) shows the highest adsorption capacity. The adsorption capacity is in accordance well with the doping extent of PANI in HA@PANI. Furthermore, when HP/0.5/204%-HCl is redoped with HNO3, H2SO4, and H3PO4, the adsorption capacity declines, implying the dopant acid in the process of redoping exhibits a marked effect on Cr(VI) oxyanion adsorption for the HA@PANI hybrid nanotubes. HP/0.5/204%-HCl and HP/0.5/204%-H3PO4 have demonstrated good regenerability with an above 80% removal ratio after four cycles. Moreover, the HA@PANI adsorbent has better sedimentation ability than that of pure PANI. The adsorption behavior is in good agreement with Langmuir and pseudo second-order equations, indicating the adsorption of HA@PANI for Cr(VI) oxyanion is chemical adsorption. FT-IR and XPS of HA@PANI after Cr(VI) oxyanion adsorption indicate that the doped amine/imine groups (-NH+/═N+- groups) are the main adsorption sites for the removal of Cr(VI) oxyanion by electrostatic adsorption and reduction of the adsorbed Cr (VI) oxyanion to Cr(III) simultaneously.
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Affiliation(s)
- Tianzhu Zhou
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University , Kunming 650091, China
| | - Cuiping Li
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University , Kunming 650091, China
| | - Huiling Jin
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University , Kunming 650091, China
| | - Yangyang Lian
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University , Kunming 650091, China
| | - Wenmei Han
- School of Chemical Science and Technology, Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan University , Kunming 650091, China
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45
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Yang H, Fei H. Exfoliation of a two-dimensional cationic inorganic network as a new paradigm for high-capacity CrVI-anion capture. Chem Commun (Camb) 2017; 53:7064-7067. [DOI: 10.1039/c7cc04375a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work represents the selective capture of the aqueous CrVI-anions in record capacityviathein situexfoliation of a rare cationic copper hydroxide material.
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Affiliation(s)
- Huimin Yang
- School of Chemical Science and Engineering
- Shanghai Key Laboratory of Chemical Assessment and Sustainability
- Tongji University
- Shanghai 200092
- P. R. China
| | - Honghan Fei
- School of Chemical Science and Engineering
- Shanghai Key Laboratory of Chemical Assessment and Sustainability
- Tongji University
- Shanghai 200092
- P. R. China
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46
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Zhong Y, Qiu X, Chen D, Li N, Xu Q, Li H, He J, Lu J. Flexible Electrospun Carbon Nanofiber/Tin(IV) Sulfide Core/Sheath Membranes for Photocatalytically Treating Chromium(VI)-Containing Wastewater. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28671-28677. [PMID: 27723961 DOI: 10.1021/acsami.6b10241] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report an efficient method for fabricating flexible membranes of electrospun carbon nanofiber/tin(IV) sulfide (CNF@SnS2) core/sheath fibers. CNF@SnS2 is a new photocatalytic material that can be used to treat wastewater containing high concentrations of hexavalent chromium (Cr(VI)). The hierarchical CNF@SnS2 core/sheath membranes have a three-dimensional macroporous architecture. This provides continuous channels for the rapid diffusion of photoelectrons generated by SnS2 nanoparticles under visible light irradiation. The visible light (λ > 400 nm) driven photocatalytic properties of CNF@SnS2 are evaluated by the reduction of water-soluble Cr(VI). CNF@SnS2 exhibits high visible light-driven photocatalytic activity because of its low band gap of 2.34 eV. Moreover, CNF@SnS2 exhibits good photocatalytic stability and excellent cycling stability. Under visible light irradiation, the optimized CNF@SnS2 membranes exhibit a high rate of degradation of 250 mg/L of aqueous Cr(VI) and can completely degrade the Cr(VI) within 90 min.
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Affiliation(s)
- Yunlei Zhong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, China
| | - Xun Qiu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, China
| | - Dongyun Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, China
| | - Najun Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, China
| | - Qingfeng Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, China
| | - Hua Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, China
| | - Jinghui He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University , Suzhou 215123, China
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47
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Fabrication of Unique Magnetic Bionanocomposite for Highly Efficient Removal of Hexavalent Chromium from Water. Sci Rep 2016; 6:31090. [PMID: 27502074 PMCID: PMC4977471 DOI: 10.1038/srep31090] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 07/13/2016] [Indexed: 11/08/2022] Open
Abstract
Biotreatment of hexavalent chromium has attracted widespread interest due to its cost effective and environmental friendliness. However, the difficult separation of biomass from aqueous solution and the slow hexavalent chromium bioreduction rate are bottlenecks for biotechnology application. In this approach, a core-shell structured functional polymer coated magnetic nanocomposite was prepared for enriching the hexavalent chromium. Then the nanocomposite was connected to the bacteria via amines on bacterial (Bacillus subtilis ATCC-6633) surface. Under optimal conditions, a series of experiments were launched to degrade hexavalent chromium from the aqueous solution using the as-prepared bionanocomposite. Results showed that B. subtilis@Fe3O4@mSiO2@MANHE (BFSM) can degrade hexavalent chromium from the water more effectively (a respectable degradation efficiency of about 94%) when compared with pristine B. subtilis and Fe3O4@mSiO2@MANHE (FSM). Moreover, the BFSM could be separated from the wastewater by magnetic separation technology conveniently due to the Fe3O4 core of FSM. These results indicate that the application of BFSM is a promising strategy for effective treating wastewater containing hexavalent chromium.
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Ravikumar KVG, Kumar D, Rajeshwari A, Madhu GM, Mrudula P, Chandrasekaran N, Mukherjee A. A comparative study with biologically and chemically synthesized nZVI: applications in Cr (VI) removal and ecotoxicity assessment using indigenous microorganisms from chromium-contaminated site. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:2613-27. [PMID: 26432266 DOI: 10.1007/s11356-015-5382-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 09/07/2015] [Indexed: 05/15/2023]
Abstract
In the present communication, we report a comparative study of Cr (VI) removal using biologically synthesized nano zero valent iron (BS-nZVI) and chemically synthesized nZVI (CS-nZVI), both immobilized in calcium alginate beads. The parameters like initial Cr (VI) concentration, nZVI concentration, and the contact time for Cr (VI) removal were optimized based on Box-Behnken design (BBD) by response surface modeling at a constant pH 7. Under the optimized conditions (concentration of nZVI = 1000 mg L(-1), contact time = ∼ 80 min, and initial concentration of Cr (VI) = 10 mg L(-1)), the Cr (VI) removal by the immobilized BS-nZVI and CS-nZVI alginate beads was 80.04 and 81.08 %, respectively. The adsorption of Cr (VI) onto the surface of alginate beads was confirmed by scanning electron microscopy with energy-dispersive x-ray spectroscopy (SEM-EDX), Fourier transform infrared spectroscopy (FT-IR), and Brunauer-Emmett-Teller (BET) analysis. The applicability of the process using both the sorbents was successfully test medium Cr (VI) spiked environmental water samples. In order to assess the ecotoxic effects of nZVI, the decline in cell viability, generation of intracellular reactive oxygen species (ROS), cell membrane damage, and biouptake was studied at 1000 mg L(-1) concentration, with five indigenous bacterial isolates from chromium-contaminated lake sediments and their consortium.
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Affiliation(s)
- K V G Ravikumar
- Centre for Nanobiotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - Deepak Kumar
- Centre for Nanobiotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - A Rajeshwari
- Centre for Nanobiotechnology, VIT University, Vellore, Tamil Nadu, 632014, India
| | - G M Madhu
- Department of Chemical Engineering, M. S. Ramiah Institute of Technology, Bangalore, Karnataka, India
| | - P Mrudula
- Centre for Nanobiotechnology, VIT University, Vellore, Tamil Nadu, 632014, India.
| | | | - Amitava Mukherjee
- Centre for Nanobiotechnology, VIT University, Vellore, Tamil Nadu, 632014, India.
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49
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Xu Y, Yan X, Fan L, Fang Z. Remediation of Cd(ii)-contaminated soil by three kinds of ferrous phosphate nanoparticles. RSC Adv 2016. [DOI: 10.1039/c5ra23299f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three kinds of iron phosphate nanoparticles were synthesized and they could reduce leachability and bioaccessibility of Cd effectively.
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Affiliation(s)
- Yanzhe Xu
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
- China
- Guangdong Technology Research Center for Ecological Management Remediation of Water System
| | - Xiaomin Yan
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
- China
- Guangdong Technology Research Center for Ecological Management Remediation of Water System
| | - Ling Fan
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
- China
- Guangdong Technology Research Center for Ecological Management Remediation of Water System
| | - Zhanqiang Fang
- School of Chemistry and Environment
- South China Normal University
- Guangzhou 510006
- China
- Guangdong Technology Research Center for Ecological Management Remediation of Water System
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50
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Kavitha B, Sarala Thambavani D. Kinetics, equilibrium isotherm and neural network modeling studies for the sorption of hexavalent chromium from aqueous solution by quartz/feldspar/wollastonite. RSC Adv 2016. [DOI: 10.1039/c5ra22851d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A three layer feed forward artificial neural network (ANN) with back propagation training algorithm was developed to model the adsorption process of Cr(vi) in aqueous solution using riverbed sand containing quartz/feldspar/wollastonite (QFW) as adsorbent.
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Affiliation(s)
- B. Kavitha
- PG and Research Department of Chemistry
- Cardamom Planters' Association College
- Bodinayakanur
- India-625 513
- Research and Development Centre
| | - D. Sarala Thambavani
- Government Arts and Science College
- Thiruvadanai
- India-623 407
- Research and Development Centre
- Bharathiar University
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