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Wu Y, Zhang X, Liu C, Tian L, Zhang Y, Zhu M, Qiao W, Wu J, Yan S, Zhang H, Bai H. Adsorption Behaviors and Mechanism of Phenol and Catechol in Wastewater by Magnetic Graphene Oxides: A Comprehensive Study Based on Adsorption Experiments, Mathematical Models, and Molecular Simulations. ACS OMEGA 2024; 9:15101-15113. [PMID: 38585111 PMCID: PMC10993371 DOI: 10.1021/acsomega.3c09346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 02/23/2024] [Accepted: 03/01/2024] [Indexed: 04/09/2024]
Abstract
This study provides a comprehensive analysis of the adsorption behaviors and mechanisms of phenol and catechol on magnetic graphene oxide (MGO) nanocomposites based on adsorption experiments, mathematical models, and molecular simulations. Through systematic experiments, the influence of various parameters, including contact time, pH conditions, and ionic strength, on the adsorption efficacy was comprehensively evaluated. The optimal contact time for adsorption was identified as 60 min, with the observation that an increase in inorganic salt concentration adversely affected the MGOs' adsorption capacity for both phenol and catechol. Specifically, MGOs exhibited a superior adsorption performance under mildly acidic conditions. The adsorption isotherm was well represented by the Langmuir model, suggesting monolayer coverage and finite adsorption sites for both pollutants. In terms of adsorption kinetics, a pseudo-first-order kinetic model was the most suitable for describing phenol adsorption, while catechol adsorption conformed more closely to a pseudo-second-order model, indicating distinct adsorption processes for these two similar compounds. Furthermore, this research utilized quantum chemical calculations to decipher the interaction mechanisms at the molecular level. Such calculations provided both a visual representation and a quantitative analysis of the interactions, elucidating the underlying physical and chemical forces governing the adsorption phenomena. The findings could not only offer crucial insights for the treatment of coal industrial wastewater containing phenolic compounds with bridging macroscopic observations with microscopic theoretical explanations but also advance the understanding of material-pollutant interactions in aqueous environments.
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Affiliation(s)
- Yuhua Wu
- State
Key Laboratory of High-efficiency Utilization of Coal and Green Chemical
Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Xi Zhang
- College
of Basic Medical Sciences, Ningxia Medical
University, Yinchuan 750004, China
| | - Caizhu Liu
- State
Key Laboratory of High-efficiency Utilization of Coal and Green Chemical
Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Lina Tian
- State
Key Laboratory of High-efficiency Utilization of Coal and Green Chemical
Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Yufan Zhang
- State
Key Laboratory of High-efficiency Utilization of Coal and Green Chemical
Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Meilin Zhu
- College
of Basic Medical Sciences, Ningxia Medical
University, Yinchuan 750004, China
| | - Weiye Qiao
- College
of Chemistry and Chemical Engineering, Xingtai
University, Xingtai 054001, China
| | - Jianbo Wu
- State
Key Laboratory of High-efficiency Utilization of Coal and Green Chemical
Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Shu Yan
- State
Key Laboratory of High-efficiency Utilization of Coal and Green Chemical
Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Hui Zhang
- State
Key Laboratory of High-efficiency Utilization of Coal and Green Chemical
Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
| | - Hongcun Bai
- State
Key Laboratory of High-efficiency Utilization of Coal and Green Chemical
Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
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Siddique A, Nawaz H, Razzaque S, Tabasum A, Gong H, Razzaq H, Umar M. PVDF-Based Piezo-Catalytic Membranes-A Net-Zero Emission Approach towards Textile Wastewater Purification. Polymers (Basel) 2024; 16:699. [PMID: 38475382 DOI: 10.3390/polym16050699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/05/2024] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Among the various water purification techniques, advancements in membrane technology, with better fabrication and analysis, are receiving the most research attention. The piezo-catalytic degradation of water pollutants is an emerging area of research in water purification technology. This review article focuses on piezoelectric polyvinylidene difluoride (PVDF) polymer-based membranes and their nanocomposites for textile wastewater remediation. At the beginning of this article, the classification of piezoelectric materials is discussed. Among the various membrane-forming polymers, PVDF is a piezoelectric polymer discussed in detail due to its exceptional piezoelectric properties. Polyvinylidene difluoride can show excellent piezoelectric properties in the beta phase. Therefore, various methods of β-phase enhancement within the PVDF polymer and various factors that have a critical impact on its piezo-catalytic activity are briefly explained. This review article also highlights the major aspects of piezoelectric membranes in the context of dye degradation and a net-zero approach. The β-phase of the PVDF piezoelectric material generates an electron-hole pair through external vibrations. The possibility of piezo-catalytic dye degradation via mechanical vibrations and the subsequent capture of the resulting CO2 and H2 gases open up the possibility of achieving the net-zero goal.
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Affiliation(s)
- Amna Siddique
- Department of Chemistry, University of Wah, Quaid Avenue, Wah 47040, Pakistan
| | - Hifza Nawaz
- Department of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Shumaila Razzaque
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka44/52, 01-224 Warsaw, Poland
| | - Anila Tabasum
- Department of Chemistry, University of Wah, Quaid Avenue, Wah 47040, Pakistan
| | - Hugh Gong
- Department of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK
| | - Humaira Razzaq
- Department of Chemistry, University of Wah, Quaid Avenue, Wah 47040, Pakistan
| | - Muhammad Umar
- Department of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK
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Mughal ZUN, Aylaz G, Shaikh H, Memon S, Andac M. Development of a molecularly imprinted polymer on silanized graphene oxide for the detection of 17-estradiol in wastewater. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2024; 96:e11006. [PMID: 38444299 DOI: 10.1002/wer.11006] [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: 10/10/2023] [Revised: 01/31/2024] [Accepted: 02/07/2024] [Indexed: 03/07/2024]
Abstract
This research article demonstrates the synthesis, characterization, and electrochemical evaluation of a molecularly imprinted polymer (MIP) on the surface of silanized graphene oxide (silanized GO), which is nanostructured and used to quantify 17-estradiol (E2) in wastewater. As characterization methods, X-ray diffraction (XRD), Raman spectroscopy, dynamic scattering light (DSL), scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FTIR) were utilized to examine the synthesized GO, silanized GO, MIP-GO composite, and non-imprinted polymer (NIP)-GO (NIP-GO) composite. FTIR results confirmed the successful synthesis of GO composites. Raman study confirmed the synthesis of monolayer silanized GO, MIP-GO composite, and NIP-GO composite. Surface morphology revealed that after polymerization, the surface of silanized GO sheet-like morphology is covered with nanoparticles. Adsorption kinetics studies revealed that adsorption follows the pseudo-second-order kinetics. Further, we studied the performance of a MIP-GO-based sensor by optimizing the effects of pH, scan rate, and incubation period. The linear calibration was achieved between the oxidation peak current and E2 concentration from 0.1 to 0.81 ppm, with a detection limit of 0.037 ppm. The selectivity of the MIP-GO composite was also checked by using other estrogens, and it was found that E2 is 3.3, 0.5, and 1.4 times more selective than equilin, estriol, and estrone, respectively. The composite was successfully applied to the wastewater samples for the detection of E2, and a good percentage of recoveries were achieved. It suggests that the reported composite can be applied to real samples. PRACTITIONER POINTS: An innovative electrochemical sensor was developed for selective detection of 17-estradiol through molecularly imprinted polymer fabricated on the surface of silanized GO (MIP-GO composite). The developed method was comprehensively validated and found to be linear in the range of 0.1 to 0.8 ppm of 17-estradiol, with 0.037 ppm of limit of detection and 0.1 ppm of limit of quantification, respectively. The developed MIP-GO-composite-based electrochemical sensor was found 3.3, 0.5, and 1.4 times more selective for 17-estradiol than equiline, estriol, and estrone, respectively. The applicability of a developed sensor was also checked on wastewater samples, and a good percent recovery was obtained.
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Affiliation(s)
- Zaib Un Nisa Mughal
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Gulgun Aylaz
- Nanotechnology Engineering Department, Faculty of Engineering, Sivas Cumhuriyet University, Sivas, Turkey
| | - Huma Shaikh
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Shahabuddin Memon
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, Pakistan
| | - Muge Andac
- Faculty of Engineering, Environmental Engineering Department, Hacettepe University, Ankara, Turkey
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Tahir N, Zahid M, Jillani A, Tahir S, Yaseen M, Abbas Q, Abdul Shakoor R, Hussain SZ, Shahid I. Impact of alternate Mn doping in ternary nanocomposites on their structural, optical and antimicrobial properties: Comparative analysis of photocatalytic degradation and antibacterial activity. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 337:117706. [PMID: 36933533 DOI: 10.1016/j.jenvman.2023.117706] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
The present study was done to investigate and compare the photocatalytic and antibacterial activity of two in situ Manganese doped ternary nanocomposites. The dual ternary hybrid systems comprised Mn-doped Ag2WO4 coupled with MoS2-GO and Mn-doped MoS2 coupled with Ag2WO4-GO. Both hierarchical alternate Mn-doped ternary heterojunctions formed efficient plasmonic catalysts for wastewater treatment. The novel nanocomposites were well-characterized using XRD, FTIR, SEM-EDS, HR-TEM, XPS, UV-VIS DRS, and PL techniques confirming the successful insertion of Mn+2 ions in respective host substrates. The bandgap of the ternary nanocomposites evaluated by the tauc plot showed them visible light-active nanocomposites. The photocatalytic ability of both Mn-doped coupled nanocomposites was investigated against the dye methylene blue. Both ternary nanocomposites showed excellent sunlight harvesting ability for dye degradation in 60 min. The maximum catalytic efficiency of both photocatalysts was obtained at a solution pH value of 8, photocatalyst dose and oxidant dose of 30 mg/100 mL and 1 mM for Mn-Ag2WO4/MoS2-GO, 50 mg/100 mL, 3 mM for Mn-MoS2/Ag2WO4-GO keeping IDC of 10 ppm for all photocatalysts. The nanocomposites showed excellent photocatalytic stability after five successive cycles. The response surface methodology was used as a statistical tool for the evaluation of the photocatalytic response of several interacting parameters for dye degradation by ternary composites. The antibacterial activity was determined by the inactivation of gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria by support-based doped ternary hybrids.
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Affiliation(s)
- Noor Tahir
- Department of Chemistry, University of Agriculture, Faisalabad- 38040 Pakistan
| | - Muhammad Zahid
- Department of Chemistry, University of Agriculture, Faisalabad- 38040 Pakistan.
| | - Asim Jillani
- Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Suman Tahir
- Department of Chemistry, University of Agriculture, Faisalabad- 38040 Pakistan
| | - Muhammad Yaseen
- Department of Physics, University of Agriculture Faisalabad, Pakistan
| | - Qamar Abbas
- Institute for Chemistry and Technology of Materials, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria; Institute of Chemistry and Technical Electrochemistry, Faculty of Chemical Technology, Poznan University of Technology, 60-965, Poznan, Poland
| | - Rana Abdul Shakoor
- Center for Advanced Materials (CAM), Qatar University, P.O. Box 2713, Doha, Qatar
| | - Syed Zajif Hussain
- Department of Chemistry and Chemical Engineering, SBA School of Science and Engineering (SBASSE), Lahore University of Management Sciences (LUMS), Lahore, 54792, Pakistan
| | - Imran Shahid
- Environmental Science Centre, Qatar University, Doha, P.O. Box 2713, Qatar.
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Huang J, Zhang Q, Yang Z, Hu H, Manuka M, Zhao Y, Wang X, Wang W, Yang R, Jian S, Tan H, Li X, Lv Y, Tang P, Ma B. Assembling phenyl-modified colloidal silica on graphene oxide towards ethanol redispersible graphene oxide powder. RSC Adv 2023; 13:20081-20092. [PMID: 37409034 PMCID: PMC10318485 DOI: 10.1039/d3ra02256k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/16/2023] [Indexed: 07/07/2023] Open
Abstract
Recently, ethanol has shown promising potential in the large-scale reduction of graphene oxide (GO) into graphene. However, dispersion of GO powder in ethanol is a challenge due to its poor affinity, which hinders permeation and intercalation of ethanol between GO molecule layers. In this paper, phenyl-modified colloidal silica nanospheres (PSNS) were synthesized by phenyl-tri-ethoxy-silane (PTES) and tetra-ethyl ortho-silicate (TEOS) using a sol-gel method. PSNS was then assembled onto a GO surface to form a PSNS@GO structure by possible non-covalent π-π stacking interactions between the phenyl groups and GO molecules. The surface morphology, chemical composition, and dispersion stability were analyzed by scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetry, Raman spectroscopy, X-ray diffractometry, nuclear magnetic resonance, and particle sedimentation test. The results showed that the as-assembled PSNS@GO suspension had excellent dispersion stability with an optimal PSNS concentration of 5 vol% PTES. With the optimized PSNS@GO, ethanol can permeate between the GO layers and intercalate along with PSNS particles via formation of hydrogen bonds between assembled PSNS on GO and ethanol, achieving a stable dispersion of GO in ethanol. The optimized PSNS@GO powder remained redispersible after drying and milling according to this interaction mechanism which is favorable for large scale reduction processes. Higher PTES concentration may result in agglomeration of PSNS and formation of wrapping structures of PSNS@GO after drying and worsen its dispersion capability.
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Affiliation(s)
- Jian Huang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Qian Zhang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Zhengcai Yang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Hailong Hu
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Mesfin Manuka
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Yuting Zhao
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Xin Wang
- College of Civil and Transportation Engineering, Shenzhen University Shenzhen 518000 China
| | - Wufeng Wang
- Wuhan University of Technology Advanced Engineering Technology Research Institute of Zhongshan City Zhongshan 528400 China
| | - Rong Yang
- Wuhan University of Technology Advanced Engineering Technology Research Institute of Zhongshan City Zhongshan 528400 China
| | - Shouwei Jian
- School of Materials Science and Engineering, Wuhan University of Technology Wuhan 430070 China
| | - Hongbo Tan
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Xiangguo Li
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Yang Lv
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Pei Tang
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology Wuhan 430070 China
| | - Baoguo Ma
- School of Materials Science and Engineering, Wuhan University of Technology Wuhan 430070 China
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Thangaraj B, Mumtaz F, Abbas Y, Anjum DH, Solomon PR, Hassan J. Synthesis of Graphene Oxide from Sugarcane Dry Leaves by Two-Stage Pyrolysis. Molecules 2023; 28:molecules28083329. [PMID: 37110563 PMCID: PMC10140955 DOI: 10.3390/molecules28083329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 03/31/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Natural or synthetic graphite as precursors for the preparation of graphene oxide (GO) have constraints due to their limited availability, high reaction temperature for processing of synthetic graphite and higher generation cost. The use of oxidants, long reaction duration, the generation of toxic gases and residues of inorganic salts, the degree of hazard and low yield are some of the disadvantages of the oxidative-exfoliation methods. Under these circumstances, biomass waste usage as a precursor is a viable alternative. The conversion of biomass into GO by the pyrolysis method is ecofriendly with diverse applications, which partially overcomes the waste disposal problem encountered by the existing methods. In this study, graphene oxide (GO) is prepared from dry leaves of sugarcane plant through a two-step pyrolysis method using ferric (III) citrate as a catalyst, followed by treatment with conc. H2SO4. The synthesized GO is analyzed by UV-Vis., FTIR, XRD, SEM, TEM, EDS and Raman spectroscopy. The synthesized GO has many oxygen-containing functional groups (-OH, C-OH, COOH, C-O). It shows a sheet-like structure with a crystalline size of 10.08 nm. The GO has a graphitic structure due to the Raman shift of G (1339 cm-1) and D (1591 cm-1) bands. The prepared GO has multilayers due to the ratio of 0.92 between ID and IG. The weight ratios between carbon and oxygen are examined by SEM-EDS and TEM-EDS and found to be 3.35 and 38.11. This study reveals that the conversion of sugarcane dry leaves into the high-value-added material GO becomes realistic and feasible and thus reduces the production cost of GO.
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Affiliation(s)
- Baskar Thangaraj
- Department of Physics, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Fatima Mumtaz
- Emirates Nuclear Technology Center, Department of Chemical Engineering, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Yawar Abbas
- Department of Physics, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Dalaver H Anjum
- Department of Physics, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Pravin Raj Solomon
- Molecular Epidemiology and Diagnostic Research Facility, Department of Immunology, School of Biological Sciences, Madurai Kamaraj University, Madurai 625021, Tamil Nadu, India
| | - Jamal Hassan
- Department of Physics, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
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Sagadevan S, Rahman MZ, Léonard E, Losic D, Hessel V. Sensor to Electronics Applications of Graphene Oxide through AZO Grafting. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:846. [PMID: 36903724 PMCID: PMC10005793 DOI: 10.3390/nano13050846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Graphene is a two-dimensional (2D) material with a single atomic crystal structure of carbon that has the potential to create next-generation devices for photonic, optoelectronic, thermoelectric, sensing, wearable electronics, etc., owing to its excellent electron mobility, large surface-to-volume ratio, adjustable optics, and high mechanical strength. In contrast, owing to their light-induced conformations, fast response, photochemical stability, and surface-relief structures, azobenzene (AZO) polymers have been used as temperature sensors and photo-switchable molecules and are recognized as excellent candidates for a new generation of light-controllable molecular electronics. They can withstand trans-cis isomerization by conducting light irradiation or heating but have poor photon lifetime and energy density and are prone to agglomeration even at mild doping levels, reducing their optical sensitivity. Graphene derivatives, including graphene oxide (GO) and reduced graphene oxide (RGO), are an excellent platform that, combined with AZO-based polymers, could generate a new type of hybrid structure with interesting properties of ordered molecules. AZO derivatives may modify the energy density, optical responsiveness, and photon storage capacity, potentially preventing aggregation and strengthening the AZO complexes. They are potential candidates for sensors, photocatalysts, photodetectors, photocurrent switching, and other optical applications. This review aimed to provide an overview of the recent progress in graphene-related 2D materials (Gr2MS) and AZO polymer AZO-GO/RGO hybrid structures and their synthesis and applications. The review concludes with remarks based on the findings of this study.
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Affiliation(s)
- Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Md Zillur Rahman
- Department of Mechanical Engineering, Ahsanullah University of Science and Technology, Dhaka 1208, Bangladesh
| | - Estelle Léonard
- Research Center Royallieu, TIMR (Integrated Transformations of Renewable Matter), ESCOM, University de Technologie de Compiegne, CS 60 319, CEDEX, 60 203 Compiegne, France
| | - Dusan Losic
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
- The ARC Graphene Research Hub, School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Volker Hessel
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
- School of Engineering, University of Warwick, Library Rd, Coventry CV4 7AL, UK
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8
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Prussian blue composites for Cs adsorption – modification of the method and modelling of the adsorption processes. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08660-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Joshi NC, Rawat BS, Semwal P, Kumar N. Effective removal of highly toxic Pb 2+ and Cd 2+ ions using reduced graphene oxide, polythiophene, and silica-based nanocomposite. J DISPER SCI TECHNOL 2022. [DOI: 10.1080/01932691.2022.2127752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
| | - B. S. Rawat
- Department of Physics, Uttaranchal University, Dehradun, India
| | - Prashant Semwal
- Department of Physics, Uttaranchal University, Dehradun, India
| | - Niraj Kumar
- Division of Research & Innovation, Uttaranchal University, Dehradun, India
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Mughal ZUN, Shaikh H, Baig JA, Memon S, Sirajuddin, Shah S. Fabrication of an imprinted polymer based graphene oxide composite for label-free electrochemical sensing of Sus DNA. NEW J CHEM 2022. [DOI: 10.1039/d2nj02958h] [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
An innovative label-free electrochemical sensor was developed for selective detection of Sus (pig) Deoxyribonucleic acid (DNA) through adenine imprinted polypyrrole fabricated on the surface of allyl mercaptan modified GO (MIP/mGO).
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Affiliation(s)
- Zaib un Nisa Mughal
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Sindh, Pakistan
| | - Huma Shaikh
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Sindh, Pakistan
| | - Jamil Ahmed Baig
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Sindh, Pakistan
| | - Shahabuddin Memon
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Sindh, Pakistan
| | - Sirajuddin
- H. E. J. Research Institute of Chemistry, I.C.C.B.S. University of Karachi, Karachi-75270, Sindh, Pakistan
| | - Shahnila Shah
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Sindh, Pakistan
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