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Srivastava S, Yadav RK, Pande PP, Singh S, Chaubey S, Singh P, Gupta SK, Gupta S, Kim TW, Tiwary D. Dye Degradation and Sulfur Oxidation of Methyl Orange and Thiophenol via Newly Designed Nanocomposite GQDs/NiSe-NiO Photocatalyst Under Homemade LED Light. Photochem Photobiol 2022. [PMID: 36539981 DOI: 10.1111/php.13763] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/28/2022] [Indexed: 12/24/2022]
Abstract
Photocatalytic processes triggered by graphene-based photocatalysts under solar light have sparked interest as a new sort of instrument for solar chemical synthesis. Herein we investigated self-assembled graphene quantum dots (GQDs)/NiSe-NiO composite photocatalyst for organic transformation as well as dye degradation. The synthesized GQDs/NiSe-NiO composite photocatalyst has an excellent suitable band gap, high molar extinction coefficient, low toxicity and chemical/thermal stability. The GQDs/NiSe-NiO composite photocatalyst emerges as a new standard for sulfur oxidation and dye degradation reactions under homemade LED light with high yield.
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Affiliation(s)
- Shivangi Srivastava
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, India
| | - Rajesh K Yadav
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, India
| | - Poorn Prakash Pande
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, India
| | - Satyam Singh
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, India
| | - Surabhi Chaubey
- Department of Chemistry and Environmental Science, Madan Mohan Malaviya University of Technology, Gorakhpur, India
| | - Pooja Singh
- Department of Chemistry, Chandigarh University, Mohali, Punjab, India
| | - Sarvesh Kumar Gupta
- Department of Physics and Material Science, Nanoionic and Energy Storage Laboratory (Nano ESL), Madan Mohan Malaviya University of Technology, Gorakhpur, India
| | - Shivani Gupta
- Department of Physics and Material Science, Nanoionic and Energy Storage Laboratory (Nano ESL), Madan Mohan Malaviya University of Technology, Gorakhpur, India
| | - Tae Wu Kim
- Department of Chemistry, Mokpo National University, Muan-gun, Jeollanam-do, Korea
| | - Dhanesh Tiwary
- Department of Chemistry, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
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Yang C, de Falco G, Florent M, Bandosz TJ. Empowering carbon materials robust gas desulfurization capability through an inclusion of active inorganic phases: A review of recent approaches. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129414. [PMID: 35897187 DOI: 10.1016/j.jhazmat.2022.129414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/26/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
Gas-phase desulfurization on carbon materials is an important process attracting the attention of scientists and engineers. When involving physical adsorption, reactive adsorption and catalytic oxidation combined, the process is considered as energy-efficient. Recent developments in materials science directed the attention of researchers to inorganic phases which react with H2S and participate to its oxidation to elemental sulfur. To fully utilize their capability, a developed surface area is needed and this feature is delivered by carbons. This review presents examples of recent advances in this field with focus not only on the activity of inorganic phases, dispersed on the surface or introduced as nanoparticles, but also on the important contribution of a carbon support as providing specific synergistic effects. The active phase promotes the H2S oxidation and participates in the reactions with H2S, while the carbon phase ensures its high dispersion, adds to oxygen activation and to an efficient electron transfer.
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Affiliation(s)
- Chao Yang
- Department of Chemistry and Biochemistry, The City College of New York, NY 1000312,10031, New York, United States
| | - Giacomo de Falco
- Department of Chemistry and Biochemistry, The City College of New York, NY 1000312,10031, New York, United States
| | - Marc Florent
- Department of Chemistry and Biochemistry, The City College of New York, NY 1000312,10031, New York, United States
| | - Teresa J Bandosz
- Department of Chemistry and Biochemistry, The City College of New York, NY 1000312,10031, New York, United States.
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Vu TT, La TV, Pham VT, Vu MK, Huynh DC, Tran NK. Highly efficient adsorbent for the transformer oil purification by ZnO/Graphene composite. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Zhang YJ, He PY, Yang MY, Chen H, Liu LC. Renewable conversion of slag to graphene geopolymer for H2 production and wastewater treatment. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.02.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Samak NA, Selim MS, Hao Z, Xing J. Controlled-synthesis of alumina-graphene oxide nanocomposite coupled with DNA/ sulfide fluorophore for eco-friendly “Turn off/on” H2S nanobiosensor. Talanta 2020; 211:120655. [DOI: 10.1016/j.talanta.2019.120655] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/12/2019] [Accepted: 12/19/2019] [Indexed: 12/19/2022]
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Tuning the ZnO-activated carbon interaction through nitrogen modification for enhancing the H2S removal capacity. J Colloid Interface Sci 2019; 555:548-557. [DOI: 10.1016/j.jcis.2019.08.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/25/2019] [Accepted: 08/04/2019] [Indexed: 11/17/2022]
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Facile and scalable production of heterostructured ZnS-ZnO/Graphene nano-photocatalysts for environmental remediation. Sci Rep 2018; 8:13401. [PMID: 30194393 PMCID: PMC6128855 DOI: 10.1038/s41598-018-31539-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 08/06/2018] [Indexed: 11/21/2022] Open
Abstract
A facile and eco-friendly strategy is described for the synthesis of ZnS-ZnO/graphene heterostructured nano-photocatalysts for the first time. This solvent-free and technologically scalable method involves solid-state mixing of graphite oxide (GO), Zn salt and surfeit yet non-toxic elemental sulfur using ball-milling followed by thermal annealing. The as-formed hybrids are composed of uniformly distributed in-situ formed ZnS-ZnO nanoparticles simultaneously within the thermally reduced GO (graphene) matrix. A series of hybrid compositions with varying content of ZnS/ZnO and graphene were prepared and thoroughly characterized. Further, the effect of heterostructure composition on the photocatalytic properties was investigated under visible-light illumination. The synergistic ZnS-ZnO/graphene hybridization promoted the band-gap narrowing compared to the pristine ZnS nanoparticles. The ZnS:ZnO composition was controlled by graphite oxide under thermal treatment and observed to be a crucial factor in enhancement of photocatalytic activity. As a proof of concept, the phase optimized and surface enhanced ZnS-ZnO/graphene nano-photocatalysts was tested towards visible light driven photocatalytic degradation of environmentally harmful organic dyes and toxic phenol molecules from aqueous media. The presented cost-effective strategy provides high potential in large-scale production of heterostructured nano-photocatalysts for environmental remediation and photocatalytic greener production of hydrogen.
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Individual Gas Molecules Detection Using Zinc Oxide–Graphene Hybrid Nanosensor: A DFT Study. C — JOURNAL OF CARBON RESEARCH 2018. [DOI: 10.3390/c4030044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Surface modification is a reliable method to enhance the sensing properties of pristine graphene by increasing active sites on its surface. Herein, we investigate the interactions of the gas molecules such as NH3, NO, NO2, H2O, and H2S with a zinc oxide (ZnO)–graphene hybrid nanostructure. Using first-principles density functional theory (DFT), the effects of gas adsorption on the electronic and transport properties of the sensor are examined. The computations show that the sensitivity of the pristine graphene to the above gas molecules is considerably improved after hybridization with zinc oxide. The sensor shows low sensitivity to the NH3 and H2O because of the hydrogen-bonding interactions between the gas molecules and the sensor. Owing to observable alterations in the conductance, large charge transfer, and high adsorption energy; the sensor possesses extraordinary potential for NO and NO2 detection. Interestingly, the H2S gas is totally dissociated through the adsorption process, and a large number of electrons are transferred from the molecule to the sensor, resulting in a substantial change in the conductance of the sensor. As a result, the ZnO–graphene nanosensor might be an auspicious catalyst for H2S dissociation. Our findings open new doors for environment and energy research applications at the nanoscale.
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Adsorptive removal of carbonyl sulfide by Fe-modified activated carbon: experiments and DFT calculations. ADSORPTION 2017. [DOI: 10.1007/s10450-017-9910-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shah MS, Tsapatsis M, Siepmann JI. Hydrogen Sulfide Capture: From Absorption in Polar Liquids to Oxide, Zeolite, and Metal–Organic Framework Adsorbents and Membranes. Chem Rev 2017; 117:9755-9803. [DOI: 10.1021/acs.chemrev.7b00095] [Citation(s) in RCA: 322] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Mansi S. Shah
- Department
of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455-0132, United States
| | - Michael Tsapatsis
- Department
of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455-0132, United States
| | - J. Ilja Siepmann
- Department
of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455-0132, United States
- Department
of Chemistry and Chemical Theory Center, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455-0431, United States
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