1
|
Singh G, Devi T. Studies on photocatalytic mineralization of organic pesticides by bimetallic Cu-Zn nanoparticles derived from Zingiber officinale Roscoe (ginger) using green chemistry approach. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:27699-27708. [PMID: 38517626 DOI: 10.1007/s11356-024-32966-y] [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: 01/15/2024] [Accepted: 03/14/2024] [Indexed: 03/24/2024]
Abstract
Compared to monometallic nanoparticles, bimetallic nanoparticle synthesis and characterization have attracted more attention due to their superior environmental protection properties. In this study, we discuss the preparation and characterization of Cu-Zn bimetallic nanoparticles using Zinger extract, as well as their potential role in photocatalytic degradation of carbendazim, chlorpyrifos, monocrotophos, and cypermethrin. Surface properties were assessed with SEM and TEM, while UV-VIS, XRD, FTIR, and fluorescence spectroscopy were used to characterize the materials. It was observed that higher pH conditions were more conducive to the development of stable Cu-Zn BMNPs with diameters ranging from 60 to 100 nm. UV-VIS spectroscopy showed that the Cu-Zn bimetallic nanoparticles photodegraded 53-95% of the pesticides, monocrotophos, chlorpyrifos, and carbendazim during the 24-72-h incubation period. A number of pesticides may be photocatalytically degraded by primary reactive radicals produced by nanoparticles. We propose that the use of bimetallic nanoparticles could be one alternative strategy for pesticide mineralization.
Collapse
Affiliation(s)
- Gurpreet Singh
- Post-Graduate Department of Biotechnology, Lyallpur Khalsa College, Jalandhar, 144001, India.
| | - Tulsi Devi
- Post-Graduate Department of Biotechnology, Lyallpur Khalsa College, Jalandhar, 144001, India
| |
Collapse
|
2
|
Zhou T, Guo T, Wang Y, Wang A, Zhang M. Carbendazim: Ecological risks, toxicities, degradation pathways and potential risks to human health. CHEMOSPHERE 2023; 314:137723. [PMID: 36592835 DOI: 10.1016/j.chemosphere.2022.137723] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 06/17/2023]
Abstract
Carbendazim is a highly effective benzimidazole fungicide and is widely used throughout the world. The effects of carbendazim contamination on the biology and environment should be paid more attention. We reviewed the published papers to evaluate the biological and environmental risks of carbendazim residues. The carbendazim has been frequently detected in the soil, water, air, and food samples and disrupted the soil and water ecosystem balances and functions. The carbendazim could induce embryonic, reproductive, developmental and hematological toxicities to different model animals. The carbendazim contamination can be remediated by photodegradation and chemical and microbial degradation. The carbendazim could enter into human body through food, drinking water and skin contact. Most of the existing studies were completed in the laboratory, and further studies should be conducted to reveal the effects of successive carbendazim applications in the field.
Collapse
Affiliation(s)
- Tangrong Zhou
- Key Laboratory for Rural Ecosystem Health in Dongting Lake Area, College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Tao Guo
- Key Laboratory for Rural Ecosystem Health in Dongting Lake Area, College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Yan Wang
- Key Laboratory for Rural Ecosystem Health in Dongting Lake Area, College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Andong Wang
- Key Laboratory for Rural Ecosystem Health in Dongting Lake Area, College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China
| | - Manyun Zhang
- Key Laboratory for Rural Ecosystem Health in Dongting Lake Area, College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128, PR China; Centre for Planetary Health and Food Security, School of Environment and Science, Griffith University, Brisbane, Queensland 4111, Australia.
| |
Collapse
|
3
|
Xu J, Li Q, Sui D, Jiang W, Liu F, Gu X, Zhao Y, Ying P, Mao L, Cai X, Zhang J. In Situ Photodeposition of Cobalt Phosphate (CoH xPO y) on CdIn 2S 4 Photocatalyst for Accelerated Hole Extraction and Improved Hydrogen Evolution. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:420. [PMID: 36770380 PMCID: PMC9921930 DOI: 10.3390/nano13030420] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 01/11/2023] [Accepted: 01/14/2023] [Indexed: 06/18/2023]
Abstract
The ternary metal sulfide CdIn2S4 (CIS) has great application potential in solar-to-hydrogen conversion due to its suitable band gap, good stability and low cost. However, the photocatalytic hydrogen (H2) evolution performance of CIS is severely limited by the rapid electron-hole recombination originating from the slow photogenerated hole transfer kinetics. Herein, by simply depositing cobalt phosphate (CoHxPOy, noted as Co-Pi), a non-precious co-catalyst, an efficient pathway for accelerating the hole transfer process and subsequently promoting the H2 evolution reaction (HER) activity of CIS nanosheets is developed. X-ray photoelectron spectroscopy (XPS) reveals that the Co atoms of Co-Pi preferentially combine with the unsaturated S atoms of CIS to form Co-S bonds, which act as channels for fast hole extraction from CIS to Co-Pi. Electron paramagnetic resonance (EPR) and time-resolved photoluminescence (TRPL) showed that the introduction of Co-Pi on ultrathin CIS surface not only increases the probability of photogenerated holes arriving the catalyst surface, but also prolongs the charge carrier's lifetime by reducing the recombination of electrons and holes. Therefore, Co-Pi/CIS exhibits a satisfactory photocatalytic H2 evolution rate of 7.28 mmol g-1 h-1 under visible light, which is superior to the pristine CIS (2.62 mmol g-1 h-1) and Pt modified CIS (3.73 mmol g-1 h-1).
Collapse
Affiliation(s)
- Jiachen Xu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Qinran Li
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Dejian Sui
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Wei Jiang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Fengqi Liu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Xiuquan Gu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Yulong Zhao
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Pengzhan Ying
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Liang Mao
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Xiaoyan Cai
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Junying Zhang
- School of Physics, Beihang University, Beijing 100191, China
| |
Collapse
|
4
|
da Silva JR, Almeida PF, Santos LE, Brugnera MF. TiO2 nanotubes impregnated with Au nanoparticles: characterization and application in carbendazim and atrazine degradation. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
5
|
Sahoo U, Pattnayak S, Choudhury S, Padhiari S, Tripathy M, Hota G. Silver-Nanoparticle-Decorated g-C 3N 4/MIL-53(Fe) Nanocomposites: A Pre-Eminent Visible-Light-Driven Photocatalyst toward Multimodal Photocatalytic Applications. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ugrabadi Sahoo
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela 769008, Odisha, India
| | - Samarjit Pattnayak
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela 769008, Odisha, India
| | - Shubhalaxmi Choudhury
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela 769008, Odisha, India
| | - Sandip Padhiari
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela 769008, Odisha, India
| | - Manamohan Tripathy
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela 769008, Odisha, India
| | - Garudadhwaj Hota
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela 769008, Odisha, India
| |
Collapse
|
6
|
Yogesh Kumar K, Prashanth MK, Parashuram L, Palanivel B, Alharti FA, Jeon BH, Raghu MS. Gadolinium sesquisulfide anchored N-doped reduced graphene oxide for sensitive detection and degradation of carbendazim. CHEMOSPHERE 2022; 296:134030. [PMID: 35189195 DOI: 10.1016/j.chemosphere.2022.134030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/29/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Agriculture is having a major role in solving issues associated with food shortages across the globe. Carbendazim (CZM) is one of the fungicides which is commonly used in agriculture to grow crops in large quantities and fast. Monitoring CZM content is in high demand for environmental remediation. The present work deals with the synthesis of gadolinium sesquisulfide anchored Nitrogen-doped reduced graphene oxide (Gd2S3/NRGO) through a simple microwave-assisted method. X-ray diffraction and morphological studies confirm the formation of the nanocomposite. Gd2S3/NRGO showed enhanced activity both in electrochemical detection and light-driven degradation of CZM compared to Gd2S3 and NRGO. Gd2S3/NRGO modified glassy carbon electrode (GCE) exhibit a wide linear range of 0.01-450 μM CZM with 0.009 μM LOD using differential pulse voltammetry (DPV). Gd2S3/NRGO@GCE showed good selectivity, stability, and recovery (98.13-99.10%) in the river water sample. In addition, Gd2S3/NRGO has been explored towards the visible-light-induced degradation of CZM. The reactions conditions were optimized to achieve maximum efficiency. 94% of CZM was degraded within 90 min in presence of Gd2S3/NRGO. Mechanism of electrochemical redox reaction and degradation of CZM in presence of Gd2S3/NRGO has been explored to the maximum extent possible. Degradation intermediates were identified using LC-MS.
Collapse
Affiliation(s)
- K Yogesh Kumar
- Department of Chemistry, Faculty of Engineering and Technology, Jain University, Bangalore, 562112, India
| | - M K Prashanth
- Department of Chemistry, BNM Institute of Technology, Banashankari, Bangalore, 560070, India
| | - L Parashuram
- Department of Chemistry, New Horizon College of Engineering, Outer Ring Road, Bangalore, 560103, India
| | - Baskaran Palanivel
- Department of Physics, King Engineering College, Sriperumbudur, Kancheepuram, 602117, India
| | - Fahad A Alharti
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
| | - M S Raghu
- Department of Chemistry, New Horizon College of Engineering, Outer Ring Road, Bangalore, 560103, India.
| |
Collapse
|
7
|
A Novel Cu2O/ZnO@PET Composite Membrane for the Photocatalytic Degradation of Carbendazim. NANOMATERIALS 2022; 12:nano12101724. [PMID: 35630948 PMCID: PMC9144458 DOI: 10.3390/nano12101724] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 05/14/2022] [Accepted: 05/16/2022] [Indexed: 02/01/2023]
Abstract
The extremely high levels of water pollution caused by various industrial activities represent one of the most important environmental problems. Efficient techniques and advanced materials have been extensively developed for the removal of highly toxic organic pollutants, including pesticides. This study investigated the photocatalytic degradation of the fungicide carbendazim (Czm) using composite track-etched membranes (TeMs) in an aqueous solution. Copper(I) oxide (Cu2O) and zinc oxide (ZnO) microtubes (MTs) were prepared using an electroless template deposition technique in porous poly(ethylene terephthalate) (PET) TeMs with nanochannels with a density of 4 × 107 pores/cm−2 and diameter of 385 ± 9 nm to yield Cu2O@PET and ZnO@PET composite membranes, respectively. A mixed Cu2O/ZnO@PET composite was prepared via a two-step deposition process, containing ZnO (87%) and CuZ (13%) as crystalline phases. The structure and composition of all composite membranes were elucidated using scanning electron microscopy (SEM), atomic force microscopy (AFM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) techniques. Under UV–visible light irradiation, the Cu2O/ZnO@PET composite displayed enhanced photocatalytic activity, reaching 98% Czm degradation, higher than Cu2O@PET and ZnO@PET composites. The maximum Czm degradation efficiency from aqueous solution was obtained at an optimal pH of 6 and contact time of 140 min. The effects of various parameters such as temperature, catalyst dosage and sample exposure time on the photocatalytic degradation process were studied. The degradation reaction of Czm was found to follow the Langmuir–Hinshelwood mechanism and a pseudo-first order kinetic model. The degradation kinetics of Czm accelerated with increasing temperature, and the activation energy (Ea) levels were calculated as 11.9 kJ/mol, 14.22 kJ/mol and 15.82 kJ/mol for Cu2O/ZnO@PET, ZnO@PET and Cu2O@PET composite membranes, respectively. The reusability of the Cu2O/ZnO@PET catalyst was also investigated at different temperatures for 10 consecutive runs, without any activation or regeneration processes. The Cu2O/ZnO@PET composite exhibited degradation efficiency levels of over 50% at 14 °C and over 30% at 52 °C after 5 consecutive uses.
Collapse
|
8
|
Machado RM, da Silva SW, Bernardes AM, Ferreira JZ. Degradation of carbendazim in aqueous solution by different settings of photochemical and electrochemical oxidation processes. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 310:114805. [PMID: 35240565 DOI: 10.1016/j.jenvman.2022.114805] [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: 11/30/2021] [Revised: 02/19/2022] [Accepted: 02/23/2022] [Indexed: 06/14/2023]
Abstract
The present study analyzed the performance of photochemical and electrochemical techniques in the degradation and mineralization of the pesticide carbendazim (CBZ). Direct photolysis (DP), heterogeneous photocatalysis (HP), photoelectrocatalysis (PEC), and electrochemical oxidation (EO) were tested, and the influence of UV radiation, current density (j), and supporting electrolyte concentration were evaluated. The results suggest that CBZ is only degraded by DP when UV-C254nm is used. For HP, the CBZ degradation was observed both when UV-A365nm or UV-C254nm were used, which is related to the reactive oxygen species (ROS) formed by the photocatalytic activity (photon-ROS). Neither DP nor HP were able to mineralize CBZ, demonstrating its resistance to photomediated processes. For EO, regardless of the j, there were higher CBZ degradation and mineralization than those observed when using DP and HP. The increase in the supporting electrolyte concentration (Na2SO4) did not affect the levels of degradation and mineralization of CBZ. Concerning the PEC, a CBZ mineralization of 52.2% was accomplished. These findings demonstrate that the EO is the main pathway for CBZ mineralization, suggesting an additional effect of the electro-ROS on the photon-ROS and UV-C254nm. The values of mineralization, kinetics, and half-life show that PEC UV-C254nm with a j of 15 mA cm-2 was the best setting for the degradation and mineralization of CBZ. However, when the values of specific energy consumption were considered for industrial applications, the use of EO with a j of 3 mA cm-2 and 4 g L-1 of Na2SO2 becomes more attractive. The assessment of by-products formed after this best cost-efficient treatment setting revealed the presence of aromatic and aliphatic compounds from CBZ degradation. Acute phytotoxicity results showed that the presence of sodium sulfate can be a representative factor regarding the toxicity of samples treated in electrochemical systems.
Collapse
Affiliation(s)
- R M Machado
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Ps-graduao em Engenharia de Minas, Metalrgica e de Materiais (PPGE3M), Av. Bento Gonalves, 9500, Porto Alegre, RS, Brazil
| | - S W da Silva
- UFRGS - Instituto de Pesquisas Hidráulicas (IPH), Programa de Pós-graduação em Recursos Hídricos e Saneamento Ambiental, Av. Bento Gonçalves, 9500, Porto Alegre, RS, Brazil.
| | - A M Bernardes
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Ps-graduao em Engenharia de Minas, Metalrgica e de Materiais (PPGE3M), Av. Bento Gonalves, 9500, Porto Alegre, RS, Brazil
| | - J Z Ferreira
- Universidade Federal do Rio Grande do Sul (UFRGS), Programa de Ps-graduao em Engenharia de Minas, Metalrgica e de Materiais (PPGE3M), Av. Bento Gonalves, 9500, Porto Alegre, RS, Brazil
| |
Collapse
|
9
|
Continuous photocatalysis via Z-scheme based nanocatalyst system for environmental remediation of pharmaceutically active compound: Modification, reaction site, defect engineering and challenges on the nanocatalyst. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118745] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
10
|
Liao X, Li TT, Ren HT, Mao Z, Zhang X, Lin JH, Lou CW. Photoelectrochemical aptasensor driven by visible-light based on BiFeO3@TiO2 heterostructure for microcystin-LR detection. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
11
|
Synthesis and investigation of structural behaviour and optical properties of BiFeO3, YMnO3 and BiFeO3-YMnO3 nanostructures. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2021.109101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
12
|
Bisaria K, Sinha S, Singh R, Iqbal HMN. Recent advances in structural modifications of photo-catalysts for organic pollutants degradation - A comprehensive review. CHEMOSPHERE 2021; 284:131263. [PMID: 34198058 DOI: 10.1016/j.chemosphere.2021.131263] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 02/08/2023]
Abstract
Over the last few years, industrial and anthropogenic activities have increased the presence of organic pollutants such as dyes, herbicides, pesticides, analgesics, and antibiotics in the water that adversely affect human health and the environment worldwide. Photocatalytic treatment is considered a promising, economical, effective, and sustainable process that utilizes light energy to degrade the pollutants in water. However, certain drawbacks like rapid recombination and low migration capability of photogenerated electrons and holes have restricted the use of photo-catalysts in industries. Hence, despite the abundance of lab-scale research, the technology is still not much commercialized in the mainstream. Several structural modifications in the photo-catalysts have been adopted to enhance the pollutant degradation performance to overcome the same. In this context, the present review article outlines the different advanced heterostructures synthesized to date for improved degradation of three major organic pollutants: antibiotics, dyes, and pesticides. Moreover, the article also emphasizes the degradation kinetics of photo-catalysts and the publication trend in the past decade along with the roadblocks preventing the transfer of technology from the laboratory to industry and new age photo-catalysts for the profitable implications in industrial sectors.
Collapse
Affiliation(s)
- Kavya Bisaria
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, India
| | - Surbhi Sinha
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, India
| | - Rachana Singh
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, India.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico.
| |
Collapse
|
13
|
Bano K, Kaushal S, Singh PP. A review on photocatalytic degradation of hazardous pesticides using heterojunctions. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115465] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
14
|
Enhanced visible-light photocatalytic activity and recyclability of magnetic core-shell Fe3O4@SiO2@BiFeO3–sepiolite microspheres for organic pollutants degradation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116566] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
15
|
Ayodhya D, Veerabhadram G. Microwave-assisted fabrication of g-C 3N 4 nanosheets sustained Bi 2S 3 heterojunction composites for the catalytic reduction of 4-nitrophenol. ENVIRONMENTAL TECHNOLOGY 2021; 42:826-841. [PMID: 31318310 DOI: 10.1080/09593330.2019.1646323] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 07/14/2019] [Indexed: 06/10/2023]
Abstract
In this work, we report a stable g-C3N4, Bi2S3, and g-C3N4/Bi2S3 composite catalysts were prepared via a facile one-pot microwave-assisted method and characterized. The orthorhombic phase and nearly spherical shape of the particles with an average diameter of 5-25 nm of g-C3N4/Bi2S3 composite were obtained from XRD and TEM. The composite also exhibits a high surface area (32.15 m2/g), which may provide convenient transportation and diffusion for substrate molecule. The optical studies were displayed the g-C3N4/Bi2S3 composite has a sharp absorption band in the visible region, higher charge separation, and reduced recombination rate. These results show that the Bi2S3 NPs have good crystallinity and are uniformly deposited on the surface of the g-C3N4 sheet. The catalytic performance of the g-C3N4/Bi2S3 composite for the reduction of 4-NP to 4-AP was exhibited approximately 100%, which is 1.48 and 2.34 times higher than the Bi2S3 and g-C3N4 catalysts, respectively. The pseudo-first-order rate constant was estimated as 1.648 × 10 -2 min-1 for the reduction of 4-NP using g-C3N4/Bi2S3 composite in 1 h reaction time. The effect of catalyst dosage (0-30 mg) was also investigated for the reduction of 4-NP using g-C3N4/Bi2S3 composite catalyst. Moreover, the reusability of the g-C3N4/Bi2S3 composite was exhibited a better reduction of the 4-NP even after 5 cycles and it was found that 8% reduction in the initial reduction rate. The obtained results from this study show that g-C3N4/Bi2S3 composite has the potential efficiency and stability to make it an ideal catalyst for the reduction of toxic effluents and wastewater treatment.
Collapse
Affiliation(s)
- Dasari Ayodhya
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, India
| | - Guttena Veerabhadram
- Department of Chemistry, University College of Science, Osmania University, Hyderabad, India
| |
Collapse
|
16
|
Liu S, Zhou J, Zhou Y, Liu Y, Dai G. Synthesis and Characterization of a BiNbO
4
/Bi
2
S
3
Nanocomposite with Improved Visible‐Light Photocatalytic Activity. ChemistrySelect 2020. [DOI: 10.1002/slct.202001532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Suqin Liu
- Department of Chemical Engineering and Food ScienceHubei University of Arts and Science Xiangyang Hubei 441053 China
| | - Jinghui Zhou
- Department of Chemical Engineering and Food ScienceHubei University of Arts and Science Xiangyang Hubei 441053 China
| | - Yang Zhou
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and TechnologyHainan University Haikou Hainan 570228 China
| | - Yuanyuan Liu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and TechnologyHainan University Haikou Hainan 570228 China
| | - Gaopeng Dai
- Department of Chemical Engineering and Food ScienceHubei University of Arts and Science Xiangyang Hubei 441053 China
| |
Collapse
|
17
|
Periyasamy S, Vinoth Kumar J, Chen SM, Annamalai Y, Karthik R, Erumaipatty Rajagounder N. Structural Insights on 2D Gadolinium Tungstate Nanoflake: A Promising Electrocatalyst for Sensor and Photocatalyst for the Degradation of Postharvest Fungicide (Carbendazim). ACS APPLIED MATERIALS & INTERFACES 2019; 11:37172-37183. [PMID: 31566953 DOI: 10.1021/acsami.9b07336] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Gadolinium tungstate (Gd2(WO4)3) has acquired much attention owing to its exclusive transport properties and excellent thermal and chemical stability. In this work, we demonstrate that two-dimensional (2D) gadolinium tungstate nanoflakes (GW Nfs) are synthesized by a coprecipitation method and represent novel architectures for efficient catalysis, which could be used in electrochemical sensing and photocatalytic degradation of the postharvest fungicide carbendazim (CBZ). The physicochemical properties of GW Nfs were studied by using XRD, Raman, TEM, EDX, and XPS, which show the formation of GW as a nanoflake-like structure with a well crystallized nature. The as-prepared GW Nfs revealed an admirable electrochemical response for CBZ detection with an LOD of 0.005 μM, a wide-ranging linear response of 0.02 to 40 μM, and a notable sensitivity of 0.39 μA μM-1 cm-2. Furthermore, the GW-Nf-modified electrode has a good recovery for CBZ in the study of real samples such as rice and soil washed water samples. Moreover, GW Nfs have a promising photocatalytic activity for CBZ degradation. The GW Nfs could degrade CBZ at greater than 98% efficiency and mineralize above 74% of the CBZ molecules in the presence of visible light irradiation with superior stability even after many cycles. Subsequently, the electrochemical and photocatalytic mechanisms were provided in detail.
Collapse
Affiliation(s)
- Sundaresan Periyasamy
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology , National Taipei University of Technology , No.1, Section 3, Chung-Hsiao East Road , Taipei 106 , Taiwan (R.O.C)
| | - Jeyaraj Vinoth Kumar
- Department of Chemistry, Nanomaterials Laboratory, International Research Center , Kalasalingam Academy of Research and Education , Krishnankoil 626 126 , Tamil Nadu , India
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology , National Taipei University of Technology , No.1, Section 3, Chung-Hsiao East Road , Taipei 106 , Taiwan (R.O.C)
| | - Yamuna Annamalai
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology , National Taipei University of Technology , No.1, Section 3, Chung-Hsiao East Road , Taipei 106 , Taiwan (R.O.C)
| | - Raj Karthik
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology , National Taipei University of Technology , No.1, Section 3, Chung-Hsiao East Road , Taipei 106 , Taiwan (R.O.C)
| | - Nagarajan Erumaipatty Rajagounder
- Department of Chemistry, Nanomaterials Laboratory, International Research Center , Kalasalingam Academy of Research and Education , Krishnankoil 626 126 , Tamil Nadu , India
| |
Collapse
|
18
|
Facile synthesis of nanocrystalline β-SnWO4: as a photocatalyst, biosensor and anode for Li-ion battery. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1163-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
|
19
|
Liu Z, Ma Z. Facile synthesis of Bi2S3/BiOCl0.5Br0.5 microspheres with enhanced photocatalytic activity under visible light irradiation. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.04.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
20
|
Bhoi YP, Majhi D, Das K, Mishra BG. Visible‐Light‐Assisted Photocatalytic Degradation of Phenolic Compounds Using Bi
2
S
3
/Bi
2
W
2
O
9
Heterostructure Materials as Photocatalyst. ChemistrySelect 2019. [DOI: 10.1002/slct.201900450] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yagna P. Bhoi
- Department of ChemistryNational Institute of Technology, Rourkela- 769008 Odisha India
| | - Dibyananda Majhi
- Department of ChemistryNational Institute of Technology, Rourkela- 769008 Odisha India
| | - Krishnendu Das
- Department of ChemistryNational Institute of Technology, Rourkela- 769008 Odisha India
| | - Braja G. Mishra
- Department of ChemistryNational Institute of Technology, Rourkela- 769008 Odisha India
| |
Collapse
|