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Chinnappa K, Bai CDG, Srinivasan PP. Nanocellulose-stabilized nanocomposites for effective Hg(II) removal and detection: a comprehensive review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33105-3. [PMID: 38619767 DOI: 10.1007/s11356-024-33105-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 03/22/2024] [Indexed: 04/16/2024]
Abstract
Mercury pollution, with India ranked as the world's second-largest emitter, poses a critical environmental and public health challenge and underscores the need for rigorous research and effective mitigation strategies. Nanocellulose is derived from cellulose, the most abundant natural polymer on earth, and stands out as an excellent choice for mercury ion remediation due to its remarkable adsorption capacity, which is attributed to its high specific surface area and abundant functional groups, enabling efficient Hg(II) ion removal from contaminated water sources. This review paper investigates the compelling potential of nanocellulose as a scavenging tool for Hg(II) ion contamination. The comprehensive examination encompasses the fundamental attributes of nanocellulose, its diverse fabrication techniques, and the innovative development methods of nanocellulose-based nanocomposites. The paper further delves into the mechanisms that underlie Hg removal using nanocellulose, as well as the integration of nanocellulose in Hg detection methodologies, and also acknowledges the substantial challenges that lie ahead. This review aims to pave the way for sustainable solutions in mitigating Hg contamination using nanocellulose-based nanocomposites to address the global context of this environmental concern.
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Affiliation(s)
- Karthik Chinnappa
- Department of Biotechnology, St. Joseph's College of Engineering, OMR, Chennai, 600119, Tamil Nadu, India
| | | | - Pandi Prabha Srinivasan
- Department of Biotechnology, Sri Venkateswara College of Engineering, Sriperumbudur Taluk, Chennai, 602117, Tamil Nadu, India
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2
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Dewa L, Tichapondwa SM, Mhike W. Adsorption of hexavalent chromium from wastewater using polyaniline-coated microcrystalline cellulose nanocomposites. RSC Adv 2024; 14:6603-6616. [PMID: 38390514 PMCID: PMC10882266 DOI: 10.1039/d3ra08027g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/16/2024] [Indexed: 02/24/2024] Open
Abstract
In this study, the effectiveness of microcrystalline cellulose (MCC) as an adsorbent for the removal of hexavalent chromium, Cr(vi), from synthetic wastewater was enhanced through functionalization with polyaniline (PANI). Scanning electron microscopy (SEM) showed that MCC was an effective scaffold for in situ chemical oxidative polymerization of aniline. Fourier transform infrared spectroscopy (FTIR) spectroscopy and X-ray diffraction confirmed successful PANI synthesis. The MCC/PANI nanocomposites exhibited relatively high specific surface areas, compared to that of the MCC (2.05 m2 g-1). Batch adsorption studies showed that the optimal conditions for the removal of Cr(vi) from wastewater using the MCC/PANI-69 wt% nanocomposite were an initial Cr(vi) concentration of 100 mg L-1, an adsorbent dosage of 4 g L-1 and a Cr(vi) solution pH of 7. The MCC/PANI-69 wt% required only 30 min to reach equilibrium and the equilibrium removal efficiency was 95%. FTIR spectroscopy and energy dispersive X-ray spectrometry results suggest that the Cr(vi) removal mechanism by the MCC/PANI-69 wt% nanocomposite at pH 7 was through electrostatic attraction of Cr(vi) species by PANI, reduction of Cr(vi) into Cr(iii) and precipitation of Cr(iii) on the nanocomposite surface. The kinetics for the removal of the Cr(vi) by the MCC/PANI-69 wt% nanocomposite were adequately described by the pseudo second order (PSO) kinetics model, whereas the Langmuir isotherm adequately described the equilibrium data. The MCC/PANI-69 wt% nanocomposite had a significantly improved maximum adsorption capacity of 35.97 mg g-1, at pH 7, in comparison to that of the MCC (3.92 mg g-1 at pH 1). The study demonstrated that, whereas most of the reported adsorbents for Cr(vi) are only effective at low pH values, the MCC/PANI nanocomposite synthesized in this study was effective at pH 7.
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Affiliation(s)
- Lovejoy Dewa
- Polymer Technology Division, Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology Pretoria 0001 South Africa +27 12 382 5460
| | - Shepherd Masimba Tichapondwa
- Water Utilization Division, Department of Chemical Engineering, University of Pretoria Pretoria 0001 South Africa
| | - Washington Mhike
- Polymer Technology Division, Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology Pretoria 0001 South Africa +27 12 382 5460
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Chandran DG, Muruganandam L, Biswas R. A review on adsorption of heavy metals from wastewater using carbon nanotube and graphene-based nanomaterials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:110010-110046. [PMID: 37804379 DOI: 10.1007/s11356-023-30192-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 09/26/2023] [Indexed: 10/09/2023]
Abstract
The rampant rise in world population, industrialization, and urbanization expedite the contamination of water sources. The presence of the non-biodegradable character of heavy metals in waterways badly affects the ecological balance. In this modern era, the unavailability of getting clear water as well as the downturn in water quality is a major concern. Therefore, the effective removal of heavy metals has become much more important than before. In recent years, the attention to better wastewater remediation was directed towards adsorption techniques with novel adsorbents such as carbon nanomaterials. This review paper primarily emphasizes the fundamental concepts, structures, and unique surface properties of novel adsorbents, the harmful effects of various heavy metals, and the adsorption mechanism. This review will give an insight into the current status of research in the realm of sustainable wastewater treatment, applications of carbon nanomaterials, different types of functionalized carbon nanotubes, graphene, graphene oxide, and their adsorption capacity. The importance of MD simulations and density functional theory (DFT) in the elimination of heavy metals from aqueous media is also discussed. In addition to that, the effect of factors on heavy metal adsorption such as electric field and pressure is addressed.
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Affiliation(s)
- Drisya G Chandran
- Process Simulation Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Loganathan Muruganandam
- Process Simulation Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Rima Biswas
- Process Simulation Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
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Liu L, Ma H, Khan M, Hsiao BS. Highly Efficient Cationic/Anionic Cellulose Membranes for Removal of Cr(VI) and Pb(II) Ions. MEMBRANES 2023; 13:651. [PMID: 37505017 PMCID: PMC10386320 DOI: 10.3390/membranes13070651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/29/2023]
Abstract
To achieve high throughput, low-pressure drops, and high adsorption capacity of Cr(VI) and Pb(II) in industrial wastewater treatment, cellulose membranes containing cationic and anionic groups were fabricated, respectively. In this process, cost-effective cotton fabrics were oxidized using sodium periodate, followed by quaternary ammonium or sulfonation modifications. The chemical composition, surface morphology, and thermal and mechanical properties of the cellulose membranes were investigated by ATR-FTIR, solid-state NMR, SEM, TGA, and tensile experiments. Quaternary ammonium, aldehyde, and sulfonate groups were distributed on the cationic/anionic cellulose fibers as adsorption sites, which issue remarkable adsorption capability to the cellulose membranes. The highly toxic Cr(VI) and Pb(II) ions were used to challenge the adsorption capacity of the cationic and anionic cellulose membranes, respectively. The maximum adsorption capacities of Cr(VI) and Pb(II) ions were 61.7 and 63.7 mg/g, respectively, suggested by Langmuir isotherms, kinetics, and thermodynamics in the static experiments. The dynamic adsorption capability of cationic cellulose membranes against Cr(VI) ions was determined and compared with that of commercially available anionic-exchange membranes. Spiral wound filtration cartridges were fabricated by cationic and anionic cellulose membranes, respectively, and were used to adsorb Cr(VI) and Pb(II) from lab-made wastewater, respectively. The cationic cellulose cartridge can purify 4.4 L of wastewater containing 1.0 mg/L of Cr(VI) ions with a 100% removal ratio, while the pressure drop was retained at 246 Pa. Similarly, the anionic cellulose cartridge exhibited even more impressive adsorption capability; the removal ratio against Pb(II) was 99% when 8.6 L of 1.0 mg/L of Pb(II) ions containing wastewater was treated, and the pressure drop was retained at 234 Pa. A composite cartridge fabricated by the integration of cationic and anionic cellulose membranes was successfully employed to purify the wastewater containing Cr(VI) and Pb(II) simultaneously. The possible adsorption mechanism was proposed, and the recycling ability of the cellulose membranes was also discussed.
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Affiliation(s)
- Lu Liu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hongyang Ma
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, USA
| | - Madani Khan
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, USA
| | - Benjamin S Hsiao
- Department of Chemistry, Stony Brook University, Stony Brook, NY 11794-3400, USA
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Varnamkhasti SS, Samani MR, Toghraie D. Removal of chromium (VI) from aqueous environments using composites of polyaniline-cherry leaves. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 332:117359. [PMID: 36706606 DOI: 10.1016/j.jenvman.2023.117359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 01/21/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
Composites of Polyaniline (PANI)-prune, peach, cherry, grape, fig and walnut leaves were synthesized under various conditions and were used to remove chromium (VI) from aqueous environments in discontinuous experiments. The results showed that the highest percentage of Cr (VI) removal (40.3%) belonged to the composite consisting of cherry leaves and PANI. Synthesis conditions of this composite were then studied to increase Cr (VI) removal. The results of the experiment on the various solvents are used in the synthesis of the composite of PANI-cherry leaves indicated that the best solvent (with 40.93% Crn(VI) removal) was water. The effects of polyvinyl alcohol (PVA) and polyethylene glycol (PEG) as additives on the synthesis of the composite PANI-cherry leaves were studied and it was revealed that the best-synthesized composite (with 51.64% Cr removal) was produced in presence of PVA (2 g/L), and the optimum pH and contact time were 2 and 30 min, respectively. Moreover, the adsorption process followed Langmuir and Freundlich adsorption isotherms, and the maximum Cr adsorption capacity was 33.01 mg/g. The results of the FTIR and XRD tests and SEM images for this composite were studied. The SEM images demonstrated that the addition of PVA reduced the size of the particles and made them more uniform. The XRD test indicated that the synthesized composite was amorphous, and the FTIR test confirmed the synthesis of the composite.
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Affiliation(s)
- Sina Saeidi Varnamkhasti
- Department of Civil Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran
| | - Majid Riahi Samani
- Department of Civil Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran.
| | - Davood Toghraie
- Department of Mechanical Engineering, Khomeinishahr Branch, Islamic Azad University, Khomeinishahr, Iran.
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Doyo AN, Kumar R, Barakat MA. Facile Synthesis of the Polyaniline@Waste Cellulosic Nanocomposite for the Efficient Decontamination of Copper(II) and Phenol from Wastewater. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1014. [PMID: 36985909 PMCID: PMC10059074 DOI: 10.3390/nano13061014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
The existence of heavy metals and organic pollutants in wastewater is a threat to the ecosystem and a challenge for researchers to remove using common technology. Herein, a facile one-step in situ oxidative polymerization synthesis method has been used to fabricate polyaniline@waste cellulosic nanocomposite adsornt, polyaniline-embedded waste tissue paper (PANI@WTP) to remove copper(II) and phenol from the aqueous solution. The structural and surface properties of the synthesized materials were examined by XRD, FTIR, TEM, and a zeta potential analyzer. The scavenging of the Cu(II) and phenol onto the prepared materials was investigated as a function of interaction time, pollutant concentration, and solution pH. Advanced kinetics and isotherms modeling is used to explore the Cu(II) ion and phenol adsorption mechanisms. The synthesized PANI@WTP adsorbent showed a high intake capacity for Cu(II) than phenol, with the maximum calculated adsorption capacity of 605.20 and 501.23 mg g-1, respectively. The Langmuir equilibrium isotherm model is well-fitted for Cu(II) and phenol adsorption onto the PANI@WTP. The superior scavenging capability of the PANI@WTP for Cu(II) and phenol could be explained based on the host-guest interaction forces and large active sites. Moreover, the efficiency of the PANI@WTP for Cu(II) and phenol scavenging was excellent even after the five cycles of regeneration.
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Islam MM, Mohana AA, Rahman MA, Rahman M, Naidu R, Rahman MM. A Comprehensive Review of the Current Progress of Chromium Removal Methods from Aqueous Solution. TOXICS 2023; 11:toxics11030252. [PMID: 36977017 PMCID: PMC10053122 DOI: 10.3390/toxics11030252] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 06/01/2023]
Abstract
Chromium (Cr) exists in aqueous solution as trivalent (Cr3+) and hexavalent (Cr6+) forms. Cr3+ is an essential trace element while Cr6+ is a dangerous and carcinogenic element, which is of great concern globally due to its extensive applications in various industrial processes such as textiles, manufacturing of inks, dyes, paints, and pigments, electroplating, stainless steel, leather, tanning, and wood preservation, among others. Cr3+ in wastewater can be transformed into Cr6+ when it enters the environment. Therefore, research on Cr remediation from water has attracted much attention recently. A number of methods such as adsorption, electrochemical treatment, physico-chemical methods, biological removal, and membrane filtration have been devised for efficient Cr removal from water. This review comprehensively demonstrated the Cr removal technologies in the literature to date. The advantages and disadvantages of Cr removal methods were also described. Future research directions are suggested and provide the application of adsorbents for Cr removal from waters.
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Affiliation(s)
- Md. Monjurul Islam
- Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, Islamic University, Kushtia 7003, Bangladesh
| | - Anika Amir Mohana
- Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, Islamic University, Kushtia 7003, Bangladesh
| | - Md. Aminur Rahman
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- Zonal Laboratory, Department of Public Health Engineering (DPHE), Jashore 7400, Bangladesh
| | - Mahbubur Rahman
- Chittagong University of Engineering and Technology, Faculty of Civil Engineering, Chattogram 4349, Bangladesh
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- CRC for Contamination Assessment and Remediation of the Environment, 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
- CRC for Contamination Assessment and Remediation of the Environment, The University of Newcastle, Callaghan, NSW 2308, Australia
- Department of General Educational Development, Faculty of Science & Information Technology, Daffodil International University, Dhaka 1207, Bangladesh
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Yuan X, Li J, Luo L, Zhong Z, Xie X. Advances in Sorptive Removal of Hexavalent Chromium (Cr(VI)) in Aqueous Solutions Using Polymeric Materials. Polymers (Basel) 2023; 15:polym15020388. [PMID: 36679268 PMCID: PMC9863183 DOI: 10.3390/polym15020388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 01/14/2023] Open
Abstract
Sorptive removal of hexavalent chromium (Cr(VI)) bears the advantages of simple operation and easy construction. Customized polymeric materials are the attracting adsorbents due to their selectivity, chemical and mechanical stabilities. The mostly investigated polymeric materials for removing Cr(VI) were reviewed in this work. Assembling of robust functional groups, reduction of self-aggregation, and enhancement of stability and mechanical strength, were the general strategies to improve the performance of polymeric adsorbents. The maximum adsorption capacities of these polymers toward Cr(VI) fitted by Langmuir isotherm model ranged from 3.2 to 1185 mg/g. Mechanisms of complexation, chelation, reduction, electrostatic attraction, anion exchange, and hydrogen bonding were involved in the Cr(VI) removal. Influence factors on Cr(VI) removal were itemized. Polymeric adsorbents performed much better in the strong acidic pH range (e.g., pH 2.0) and at higher initial Cr(VI) concentrations. The adsorption of Cr(VI) was an endothermic reaction, and higher reaction temperature favored more robust adsorption. Anions inhibited the removal of Cr(VI) through competitive adsorption, while that was barely affected by cations. Factors that affected the regeneration of these adsorbents were summarized. To realize the goal of industrial application and environmental protection, removal of the Cr(VI) accompanied by its detoxication through reduction is highly encouraged. Moreover, development of adsorbents with strong regeneration ability and low cost, which are robust for removing Cr(VI) at trace levels and a wider pH range, should also be an eternally immutable subject in the future. Work done will be helpful for developing more robust polymeric adsorbents and for promoting the treatment of Cr(VI)-containing wastewater.
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Affiliation(s)
- Xiaoqing Yuan
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Jingxia Li
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Zhenyu Zhong
- Hunan Research Academy of Environmental Sciences, Changsha 410014, China
- Correspondence: (Z.Z.); (X.X.)
| | - Xiande Xie
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
- Correspondence: (Z.Z.); (X.X.)
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Adeiga OI, Velempini T, Pillay K. Polyaniline-decorated Macadamia nutshell composite: an adsorbent for the removal of highly toxic Cr(VI) and efficient catalytic activity of the spent adsorbent for reuse. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-04009-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Thangagiri B, Sakthivel A, Jeyasubramanian K, Seenivasan S, Dhaveethu Raja J, Yun K. Removal of hexavalent chromium by biochar derived from Azadirachta indica leaves: Batch and column studies. CHEMOSPHERE 2022; 286:131598. [PMID: 34325269 DOI: 10.1016/j.chemosphere.2021.131598] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/29/2021] [Accepted: 07/16/2021] [Indexed: 06/13/2023]
Abstract
This report details the preparation, characterization, and applications of an inexpensive adsorbent obtained from Azadirachta indica leaves (Neem biochar (NBC)) and used to remove Cr(VI) from the synthetic waste water. The obtained NBC was characterized by XRD, FTIR, FESEM, EDX and Zeta potential measurements. Adsorption experiments conducted at various pH levels confirmed that 58.54 mg g-1 of Cr(VI) was removed by NBC at pH 2. Experiments conducted at various temperatures revealed that the Cr(VI) adsorption on NBC fits the Langmuir-type adsorption isotherm. A fixed-bed column study was conducted to obtain breakthrough curve for the adsorption process, which confirmed that the NBC usage rate was 4.63 g/L. Cr(VI)NBC was reactivated by NaOH treatment, and the reactivated NBC was used as a sorbent to remove fresh Cr(VI) from the synthetic waste water repeatedly. A cost analysis was also performed for the Cr(VI) removal confirmed that the process was less expensive.
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Affiliation(s)
- B Thangagiri
- Department of Chemistry, Mepco Schlenk Engineering College, Sivakasi, 626005, Tamil Nadu, India
| | - A Sakthivel
- Department of Chemistry, Mepco Schlenk Engineering College, Sivakasi, 626005, Tamil Nadu, India.
| | - K Jeyasubramanian
- Department of Chemistry, Mepco Schlenk Engineering College, Sivakasi, 626005, Tamil Nadu, India
| | - S Seenivasan
- Department of Environmental Toxicology, Texas Tech University, Lubbock, TX, 79409-1163, USA
| | - J Dhaveethu Raja
- Department of Chemistry, The American College, Madurai, 625 005, India
| | - Kyusik Yun
- Department of BioNano Technology, Gachon University, Seongnam, 13120, Republic of Korea.
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11
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Hoseinpour Kouhestany R, Tamaddon A, Ahmad Panahi H, Afshar Ebrahimi A, Amiri R. Electrophoretic deposition of polyaniline nanofibers on a stainless steel wire as an adsorbent for determination of tamoxifen by SPME/GC-FID in urine samples. Biomed Chromatogr 2021; 36:e5284. [PMID: 34837241 DOI: 10.1002/bmc.5284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 11/07/2021] [Accepted: 11/10/2021] [Indexed: 12/12/2022]
Abstract
Polyaniline nanofiber films were fabricated on the surface of stainless steel wire via a controllable and simple electrophoretic deposition route from a nonaqueous colloidal suspension consisting of polyaniline nanofibers. The prepared coating material was then characterized by field emission scanning electron microscopy equipped with energy dispersive spectroscopy and elemental mapping analysis. The fabricated polyaniline film-coated stainless steel wire was then utilized as an effective and novel sorbent phase for solid-phase microextraction of tamoxifen for subsequent gas chromatography/flame ionization detection of this anticancer drug. Parameters consisting of the temperature, extraction time, salt concentration, agitation speed, pH, temperature and time of desorption were studied and optimized using a one-at-a-time strategy. Under the optimum conditions, detection limit (S/N = 3), the limit of quantification (10/3 limit of detection), linear dynamic range, repeatability and reproducibility values of 0.51 μg L-1 , 1.7 μg L-1 , 2-1,130 μg L-1 , 5.7% and 8.6% were attained, respectively. The prepared fiber can preserve 90% of its efficacy after 20 consecutive cycles, demonstrating the suitable thermal stability and cyclability of the proposed solid-phase microextraction coating material for the determination of tamoxifen by gas chromatography/flame ionization detection. The route was effectively utilized to determine tamoxifen in urine samples, with relative recoveries ranging from 89 to 106%.
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Affiliation(s)
| | - Atefeh Tamaddon
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Homayoon Ahmad Panahi
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | | | - Rahebeh Amiri
- Department of Chemistry, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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Shrivastava P, Singh BP, Jain SK, Jain VK, Nagpal S. A novel approach to detect barium in gunshot residue using a handheld device: a forensic application. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:4379-4389. [PMID: 34523624 DOI: 10.1039/d1ay01272j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The present manuscript describes an innovative handheld device for the rapid detection of barium (Ba2+) in Gunshot Residue (GSR) based on the use of gold nanomaterials capped with sodium malonate. The method depends on a shift in the Light Scattering Plasmon Resonance (LSPR) peak of malonate capped gold nanoparticles (AuNPs) from 526 nm to 610.5 nm, due to the carboxylate ion aggregation between the metal and the nanoparticles leading to a change in the color. Qualitative detection was realized by the change in the color, while for quantitative analysis a handheld device has been fabricated in-house. The results were then correlated with those of standard known methods such as UV-Vis Spectroscopy and Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES). The results showed better correlation between the fabricated device and standard methods with R2 = 0.98. It shows a linearity range from 0.01 mg mL-1 to 5 mg mL-1 with a Limit of Detection (LOD) of 0.2 mg mL-1. Furthermore, GSR samples were collected from cloth piece set at different range of shooting (i.e. 1 ft to 16.40 ft) using different ammunition to detect the presence of Ba2+ with the help of the developed device and results were found similar to those of the known methods. The hand-held device was found to be unaffected by other interfering agents (i.e. Pb2+, Sb3+, Ca2+, Cu2+, Hg2+, Mg2+, As3+, Cr3+, etc.). The results demonstrated here shows high selectivity, sensitivity and rapid method for Ba2+ detection in GSR, showing its greater potentiality in future.
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Affiliation(s)
- Priya Shrivastava
- Amity Institute for Advanced Research and Studies (Materials & Devices), Amity University, Noida, UP 201303, India
| | | | | | - Vinod Kumar Jain
- Amity Institute for Advanced Research and Studies (Materials & Devices), Amity University, Noida, UP 201303, India
| | - Suman Nagpal
- Department of Environmental Science, Indira Gandhi University, Meerpur, Rewari, Haryana, India.
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Shrivastava P, Jain S, Kumar N, Jain VK, Nagpal S. Handheld device for rapid detection of lead (Pb2+) in gunshot residue for forensic application. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Ray SS, Iroegbu AO. Nanocellulosics: Benign, Sustainable, and Ubiquitous Biomaterials for Water Remediation. ACS OMEGA 2021; 6:4511-4526. [PMID: 33644559 PMCID: PMC7905826 DOI: 10.1021/acsomega.0c06070] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 01/27/2021] [Indexed: 05/06/2023]
Abstract
Water is critical for all lives to thrive. Access to potable and safe water has been argued to rank top among the prerequisites for defining the standard of living of a nation. However, there is a global decline in water quality due to human activities and other factors that severely impact freshwater resources such as saltwater intrusion and natural disasters. It has been pointed out that the millions of liters of industrial and domestic wastewater generated globally have the potential to help mitigate water scarcity if it is appropriately captured and remediated. Among the many initiatives to increase access to clean water, the scientific community has focused on wastewater remediation through the utilization of bioderived materials, such as nanocellulosics. Nanocellulosics, derived from cellulose, have the advantages of being ubiquitous, nontoxic, and excellent adsorbents. Furthermore, the surface properties of nanocellulosic materials can easily be modified. These advantages make them promising materials for water remediation applications. This perspective highlights the most important new developments in the application of nanocellulosics in water treatment technologies, such as membrane, adsorption, sensors, and flocculants/coagulants. We also identify where further work is urgently required for the widespread industrial application of nanocellulosics in wastewater treatment.
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Affiliation(s)
- Suprakas Sinha Ray
- Centre
for Nanostructures and Advanced Materials, DSI-CSIR Nanotechnology
Innovation Centre, Council for Scientific
and Industrial Research, CSIR, Pretoria 0001, South Africa
- Department
of Chemical Sciences, University of Johannesburg,
Doornfontein, Johannesburg 2028, South Africa
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15
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Daniel AB, Zahir E, Asghar MA. Remediation of Vanadium (V) and Chromium (III) Ions from Aqueous Media by Modified Nanocellulose Obtained from Coconut Coir. J MACROMOL SCI B 2021. [DOI: 10.1080/00222348.2020.1870300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Erum Zahir
- Department of Chemistry, University of Karachi, Karachi, Sindh, Pakistan
| | - Muhammad Asif Asghar
- Food and Feed Safety Laboratory, Food and Marine Resources Research Centre, PCSIR Laboratories Complex, Karachi, Pakistan
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