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Balu K, Abisheik T, Niyitanga T, Kumaravel S, Ali W, Ehtisham Khan M, Kashif Ali S, Bashiri AH, Zakri W, Pandiyan V. Synthesis and characterization of X (X = Ni or Fe) modified BaTiO 3 for effective degradation of Reactive Red 120 dye under UV-A light and its biological activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 320:124556. [PMID: 38850820 DOI: 10.1016/j.saa.2024.124556] [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: 01/06/2024] [Revised: 05/02/2024] [Accepted: 05/28/2024] [Indexed: 06/10/2024]
Abstract
For the sustainable advancement of industrial expansion that is environmentally conscious, harmful dyes must be removed from wastewater. Untreated effluents containing colors have the potential to harm the ecosystem and pose major health risks to people, animals, and aquatic life. Here, we have fabricated Ni or Fe modified with BaTiO3 materials and effectively utilized them for Reactive Red 120 (RR 120) dye degradation under UV-A light. The synthesized materials were characterized, and their structural, and photo-physical properties were reported. Phase segregation was not present in the XRD pattern, as evidenced by the absence of secondary phase peaks linked to iron, nickel, or oxides. Low metal ion concentrations may be the cause of this, and the presence of those elements was confirmed by XPS measurements. The Raman spectra of the BaTiO3/Ni and BaTiO3/Fe samples show a widened peak at 500 cm-1, which suggests that Ni or Fe are efficiently loaded onto the BaTiO3. RR 120 dye photodegradation under UV light conditions was effectively catalyzed by BaTiO3/Fe, as evidenced by its superior performance in the UV irradiation technique over both BaTiO3 and BaTiO3/Ni. Compared to bare BaTiO3, both metal-modified materials efficiently degraded the RR 120 dye. Acidic pH facilitated the degradation process, which makes sense given that the heterogeneous photo-Fenton reaction was the mechanism of degradation along with BaTiO3 sensitization. High-acidity sewage can be dangerous and carcinogenic, and conventional biological treatment methods are not appropriate for managing it. In the current investigation, it may be used to treat color effluents with extremely low pH levels. Additionally, the ability of the produced nanocomposites to inhibit the growth of twenty pathogens was examined, along with two fungi, fifteen Gram-negative Bacilli (GNB), one Gram-positive Bacilli (GPB), and two Gram-positive Cocci (GBC).
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Affiliation(s)
- Krishnakumar Balu
- Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 602105, Tamil Nadu, India; Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, E.T.S. de Ingenieros, Universidad de Sevilla, Avda. Camino de los Descubrimientos s/n., 41092 Sevilla, Spain.
| | - T Abisheik
- Department of Physics, Nehru Memorial College (Autonomous), Affiliated to Bharathidasan University, Puthanampatti, Tiruchirappalli 621007, Tamil Nadu, India
| | - Theophile Niyitanga
- School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.
| | - Sakthivel Kumaravel
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Wahid Ali
- Department of Chemical Engineering Technology, College of Applied Industrial Technology, Jazan University, Jazan 45142, Saudi Arabia.
| | - Mohammad Ehtisham Khan
- Department of Chemical Engineering Technology, College of Applied Industrial Technology, Jazan University, Jazan 45142, Saudi Arabia
| | - Syed Kashif Ali
- Department of Physical Sciences, Chemistry Division, College of Science, Jazan University, P.O. Box, 114, Jazan 45142, Saudi Arabia; Nanotechnology Research Unit, College of Science, Jazan University, P.O. Box. 114, Jazan 45152, Saudi Arabia
| | - Abdullateef H Bashiri
- Department of Mechanical Engineering, College of Engineering, Jazan University, Jazan 45142, Saudi Arabia
| | - Waleed Zakri
- Department of Mechanical Engineering, College of Engineering, Jazan University, Jazan 45142, Saudi Arabia
| | - V Pandiyan
- Department of Physics, Nehru Memorial College (Autonomous), Affiliated to Bharathidasan University, Puthanampatti, Tiruchirappalli 621007, Tamil Nadu, India.
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Alves de Sousa SC, Souto Silva KKDO, Alves de Souza I, Damião Leite AM. Synthesis of a Hybrid Membrane of Polysulfone with Zinc Oxide for Cleaning Textile Effluents. ACS OMEGA 2024; 9:36546-36552. [PMID: 39220546 PMCID: PMC11360012 DOI: 10.1021/acsomega.4c04698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 08/02/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024]
Abstract
This study aimed to investigate the influence of the ZnO concentration on the structure of a membrane for effluent filtration, varying this concentration from 0% to 3%. To analyze the results, X-ray diffraction tests, Fourier-transform infrared spectroscopy, apparent porosity, atomic force microscopy, and scanning electron microscopy were used, all of which were employed for the characterization of the produced membranes. The solution simulating the effluent was analyzed before and after the filtration process to assess the filtration results. The conducted tests reported results for filtered solution flow, turbidity, pH, dissolved oxygen, and electrical conductivity. All these results indicated that the membrane with the best performance in terms of cleanliness and the amount of filtered effluent was the one produced with a 13% hybrid polysulfone loaded with 1% ZnO in its structure.
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Affiliation(s)
- Suzanna
Rani Cristina Alves de Sousa
- Postgraduate
Program in Textile Engineering (PpgET), Federal University of Rio Grande do Norte (UFRN), Campus, Natal, Rio Grande do Norte 59078-900, Brazil
| | - Késia Karina de Oliveira Souto Silva
- Postgraduate
Program in Textile Engineering (PpgET), Federal University of Rio Grande do Norte (UFRN), Campus, Natal, Rio Grande do Norte 59078-900, Brazil
| | - Ivan Alves de Souza
- Postgraduate
Program in Textile Engineering (PpgET), Federal University of Rio Grande do Norte (UFRN), Campus, Natal, Rio Grande do Norte 59078-900, Brazil
- Plasma
Materials Processing Laboratory (LabPlasma), Federal University of Rio Grande do Norte (UFRN), Campus, Natal, Rio Grande do Norte 59078-900, Brazil
| | - Amanda Melissa Damião Leite
- Postgraduate
Program in Textile Engineering (PpgET), Federal University of Rio Grande do Norte (UFRN), Campus, Natal, Rio Grande do Norte 59078-900, Brazil
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Shanthini K, Manivannan V, Govindan R, Praburaman L, Al-Humaid LA, Oh TH, Vignesh S. Facile construction of efficient WO 3/V 2O 5 coupled g-C 3N 4 ternary composite photocatalyst for environmental emergent aqueous pollutant degradation: Stability, degradation reaction pathway and effect of pH evaluation. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:376. [PMID: 39167294 DOI: 10.1007/s10653-024-02152-7] [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: 06/30/2024] [Accepted: 07/29/2024] [Indexed: 08/23/2024]
Abstract
Currently, one of the primary challenges that human society must overcome is the task of decreasing the amount of energy used and the adverse effects that it has on the environment. The daily increase in liquid waste (comprising organic pollutants) is a direct result of the creation and expansion of new companies, causing significant environmental disruption. Water contamination is attributed to several industries such as textile, chemical, poultry, dairy, and pharmaceutical. In this study, we present the successful degradation of methylene blue dye using g-C3N4 (GCN) mixed with WO3 and V2O5 composites (GCN/WO3/V2O5 ternary composite) as a photocatalyst, prepared by a simple mechanochemistry method. The GCN/WO3/V2O5 ternary composite revealed a notable enhancement in photocatalytic performance, achieving around 97% degradation of aqueous methylene blue (MB). This performance surpasses that of the individual photocatalysts, namely pure GCN, GCN/WO3, and GCN/V2O5 composites. Furthermore, the GCN/WO3/V2O5 ternary composite exhibited exceptional stability even after undergoing five consecutive cycles. The exceptional photocatalytic activity of the GCN/WO3/V2O5 ternary composite can be ascribed to the synergistic effect of metal-free GCN and metal oxides, resulting in the alteration of the band gap and suppression of charge recombination in the ternary photocatalyst. This study offers a better platform for understanding the characteristics of materials and their photocatalytic performance under visible light conditions.
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Affiliation(s)
- K Shanthini
- Department of Chemistry, Thiruvalluvar Government Arts College, Rasipuram, 637401, India
- Department of Chemistry, Padmavani Arts & Science College for Women, Salem, 636011, India
| | - V Manivannan
- Department of Chemistry, Thiruvalluvar Government Arts College, Rasipuram, 637401, India.
| | - R Govindan
- Department of Physics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, 602105, India.
| | - Loganathan Praburaman
- Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, 602105, India
| | - Latifah A Al-Humaid
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Tae Hwan Oh
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 38541, Republic of Korea
| | - Shanmugam Vignesh
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 38541, Republic of Korea.
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4
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Wang J, Guo J, Zhou Q, Hu S, Zhang X. Improving the Performance of Pd for Formic Acid Dehydrogenation by Introducing Barium Titanate. ACS APPLIED MATERIALS & INTERFACES 2024; 16:18713-18721. [PMID: 38568896 DOI: 10.1021/acsami.3c17345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Formic acid, a safe and widely available organic compound, produces hydrogen under mild conditions, with the existence of Pd-based catalysts. Efficiently generating hydrogen via formic acid decomposition (FAD) is restricted by the cleavage of the C-H bond in adsorbed HCOO* and strong adsorption of hydrogen on the Pd surface. Herein, tetragonal-phase barium titanate (TBT) was in situ grown on reduced graphene oxide (rGO) to support Pd (Pd/TBT/rGO) for FAD. The internal electric field exists around TBT owing to its spontaneous polarization capacity. The physical characterizations illustrate that the introduction of barium titanate affects the catalytic performance of the catalyst by decreasing the particle size of Pd nanoparticles (NPs) and forming electron-rich Pd. The as-synthesized Pd/TBT/rGO exhibited excellent catalytic activity and hydrogen selectivity for FAD with a high initial turnover frequency up to 3019.72 h-1 at 333 K. The reason for this enhancement is not only the small-size Pd NPs but also the internal electric field from TBT, which promotes the desorption of adsorbed hydrogen on the Pd surface. Additionally, the electron-rich Pd is favorable to the cleavage of the C-H bond in HCOO*. This work will improve the understanding of the characterization of barium titanate and provide a new design strategy for the FAD catalyst.
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Affiliation(s)
- Junyu Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiangnan Guo
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qinggang Zhou
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shuozhen Hu
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xinsheng Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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Yan F, Hu L, Wang M, Huang S, Zhang S, He L, Zhang Z. Multifunctional photocatalyst of graphitic carbon embedded with Fe 2O 3/Fe 3O 4 nanocrystals derived from lichen for efficient photodegradation of tetracycline and methyl blue. ENVIRONMENTAL TECHNOLOGY 2024; 45:2045-2066. [PMID: 36609215 DOI: 10.1080/09593330.2022.2164522] [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: 08/08/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
We propose a feasible and economical method of constructing biomass-based multifunctional photocatalysts with excellent adsorption performance and high photodegradation abilities toward tetracycline (TC) and methyl blue (MB) under visible light. A series of novel hybrids of porous graphitic carbon embedded with Fe2O3/Fe3O4 nanocrystals (denoted as Fe2O3/Fe3O4@C) were derived from lichen doped with different dosages of Fe3+ by calcination at 700°C under a N2 atmosphere. The Fe2O3/Fe3O4@C hybrids exhibited nanoflake-like shapes, mesoporous structures, and efficient visible light harvesting, thus indicating enhanced adsorption ability and photoactivity toward pollutants. The formed Fe2O3/Fe3O4 heterojunction improved the separation efficiency and inhibited the recombination of photogenerated carriers, whereas the carbon network improved the transfer of photogenerated electrons. Under optimised conditions, the Fe2O3/Fe3O4@C-1 hybrid demonstrated enhanced photodegradation efficiencies of 96.4% for TC and 100% for MB under visible light. In addition, electron spin resonance and trapping measurements were performed to identify active species and determine the photocatalytic mechanism toward pollutants. •O2- and •OH were the active species involved, playing critical roles in the TC and MB photodegradation processes. In addition, a bacterium test revealed that the products of TC degradation by Fe2O3/Fe3O4@C-1 showed low biological toxicity. This work provides a promising preparation strategy or biomass-based photocatalysts for application in environmental pollutant treatment.
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Affiliation(s)
- Fufeng Yan
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. People's Republic of China
- Faculty of Education, Beijing Normal University, Beijing, P. R. People's Republic of China
| | - Lijun Hu
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. People's Republic of China
| | - Minghua Wang
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. People's Republic of China
| | - Shunjiang Huang
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. People's Republic of China
| | - Shuai Zhang
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. People's Republic of China
| | - Linghao He
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. People's Republic of China
| | - Zhihong Zhang
- School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou, P. R. People's Republic of China
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6
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Qi F, Li H, Gao X, Wang Y, Qian H, Li W, Liu S, Zhou H, Peng S, Shuai C. Oxygen vacancy healing boosts the piezoelectricity of bone scaffolds. Biomater Sci 2024; 12:495-506. [PMID: 38088401 DOI: 10.1039/d3bm01283b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Although barium titanate (BaTiO3) presented tremendous potential in achieving self-powered stimulation to accelerate bone repair, pervasive oxygen vacancies restricted the full play of its piezoelectric performance. Herein, BaTiO3-GO nanoparticles were synthesized by the in situ growth of BaTiO3 on graphene oxide (GO), and subsequently introduced into poly-L-lactic acid (PLLA) powders to prepare PLLA/BaTiO3-GO scaffolds by laser additive manufacturing. During the synthesis process, CO and C-OH in GO would respectively undergo cleavage and dehydrogenation at high temperature to form negatively charged oxygen groups, which were expected to occupy positively charged oxygen vacancies in BaTiO3 and thereby inhibit the formation of oxygen vacancies. Moreover, GO could be partially reduced to reduced graphene oxide, which could act as a conductive phase to facilitate polarization charge transfer, thus further improving the piezoelectric performance. The results showed that the oxygen peak at the specific electron binding energy in O 1s declined from 54.4% to 14.6% and the Ti3+ peak that was positively correlated with oxygen vacancies apparently weakened for BaTiO3-GO, illustrating that the introduced GO significantly decreased the oxygen vacancy. As a consequence, the piezoelectric current of PLLA/BaTiO3-GO increased from 80 to 147.3 nA compared with that of PLLA/BaTiO3. The enhanced piezoelectric current effectively accelerated cell differentiation by upregulating alkaline phosphatase expression, calcium salt deposition and calcium influx. This work provides a novel insight for the design of self-powered stimulation scaffolds for bone regeneration.
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Affiliation(s)
- Fangwei Qi
- Institute of Bioadditive Manufacturing, Jiangxi University of Science and Technology, Nanchang, 330013, China.
| | - Huixing Li
- Institute of Bioadditive Manufacturing, Jiangxi University of Science and Technology, Nanchang, 330013, China.
| | - Xiuwen Gao
- Institute of Bioadditive Manufacturing, Jiangxi University of Science and Technology, Nanchang, 330013, China.
| | - Yifeng Wang
- Shenzhen Shanxi Coal Hi-tech Research Institute Co., Ltd, Shenzhen, 518107, China
| | - Hongyi Qian
- Shenzhen Shanxi Coal Hi-tech Research Institute Co., Ltd, Shenzhen, 518107, China
| | - Wei Li
- School of Science, Nanchang Institute of Technology, Nanchang, 330099, China
| | - Shuling Liu
- Jiangxi Institute of Science and Technology Information, Nanchang, 330013, China
| | - Huarui Zhou
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Shuping Peng
- NHC Key Laboratory of Carcinogenesis of Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, China.
| | - Cijun Shuai
- Institute of Bioadditive Manufacturing, Jiangxi University of Science and Technology, Nanchang, 330013, China.
- State Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
- College of Mechanical Engineering, Xinjiang University, Urumqi 830017, China
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Rawal J, Lee SY, Park SJ. Facile synthesis of a GO-g-C 3N 4/BaTiO 3 ternary nanocomposites for visible-light-driven photocatalytic degradation of rhodamine B. CHEMOSPHERE 2023; 345:140479. [PMID: 37863208 DOI: 10.1016/j.chemosphere.2023.140479] [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: 07/02/2023] [Revised: 10/13/2023] [Accepted: 10/16/2023] [Indexed: 10/22/2023]
Abstract
Photogenerated charge carriers can undergo rapid recombination in conventional photocatalyst systems, reducing their photocatalytic efficiency. To address this bottleneck, a g-C3N4/BaTiO3 (CNB) heterojunction composite was decorated with different mass ratios of graphene oxide (GO) to form a novel visible-light responsive ternary GO-g-C3N4/BaTiO3 (GOCNB) nanocomposite using a facile fabrication method. The GOCNB photocatalyst exhibited significantly higher light absorption and greater charge transfer than CNB, g-C3N4, or BaTiO3. The photodegradation performance of GOCNB was optimized with a 2% mass loading of GO, and it achieved a degradation rate constant of 14.9 × 10-3 min-1 for rhodamine B with an efficiency of 94% within 180 min. The rate constant was 8-fold and 6-fold higher than that of bare BaTiO3 and CNB, respectively. The stronger photocatalytic activity was attributed to the synergistic effect of GO, g-C3N4, and BaTiO3, with g-C3N4 and BaTiO3 promoting charge transfer within a wider visible light range and GO promoting electron mobility and the photocatalyst's adsorption capacity. In particular, the proposed system maintained the spatial separation of photogenerated electron-hole pairs, which is vital for high photocatalytic activity. This study provides new insights into semiconductor-based photocatalytic systems and suggests a route for more environmentally sustainable technologies.
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Affiliation(s)
- Jishu Rawal
- Department of Chemistry, Inha University, 100 Inharo, Incheon, 22212, South Korea.
| | - Seul-Yi Lee
- Department of Chemistry, Inha University, 100 Inharo, Incheon, 22212, South Korea.
| | - Soo-Jin Park
- Department of Chemistry, Inha University, 100 Inharo, Incheon, 22212, South Korea.
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Swain J, Priyadarshini A, Hajra S, Panda S, Panda J, Samantaray R, Yamauchi Y, Han M, Kim HJ, Sahu R. Photocatalytic dye degradation by BaTiO3/zeolitic imidazolate framework composite. JOURNAL OF ALLOYS AND COMPOUNDS 2023; 965:171438. [DOI: 10.1016/j.jallcom.2023.171438] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/17/2024]
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Giridhar M, Manjunath BC, Surendra BS, Harish KN, Prashantha SC, Kiran T, Uma B, Murthy HCA. Sustainable approach of La doped CuFe 2O 4 nanomaterial for electrochemical lead and paracetamol sensing action with multiple applications. Sci Rep 2023; 13:17821. [PMID: 37857785 PMCID: PMC10587082 DOI: 10.1038/s41598-023-45029-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 10/14/2023] [Indexed: 10/21/2023] Open
Abstract
This present research aimed to investigate the novel applications of synthesized La doped CuFe2O4 nanomaterial (LCF NMs) using renewable bio-fuel (Aegle Marmelos extract) by combustion process. The sensor applications were accomplished by modified electrode using LCF NMs with graphite powder and examined its excellent sensing action towards heavy metal (Lead content) and drug chemical (Paracetamol) substances. The thermodynamics of redox potential and super-capacitor behavior of LCF NMs were investigated through Cyclic Voltametric (CV) and Electrochemical Impedance Spectral (EIS) methods under specific conditions at scan rate of 1 to 5 mV/s. The heterogeneous photo-catalytic process of prepared NMs on Fast orange Red (FOR) dye-decolouration was investigated and noted its excellent degradation (91.7%) at 90 min using 20 ppm of dye solution and 40 mg of synthesized samples under Sun-light irradiation. Further, the antibacterial activity of synthesized NMs is investigated against various strains of gram positive (Bacillus subtillis) and gram negative bacteria (Pseudomonas aeruginosa), which confirms that the LCF NMs have higher activity towards gram positive bacteria with an average inhibition zone of 19 mm. This synthesized LCF NMs is a multi-functional material with stable and eco-friendly materials.
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Affiliation(s)
- Meenakshi Giridhar
- Department of Physics, St. Phelomena's College, University of Mysore, Mysore, India
| | - B C Manjunath
- Department of Physics, Yuvaraja's College, University of Mysore, Mysore, India.
| | - B S Surendra
- Department of Chemistry, Dayananda Sagar College of Engineering, Bangalore, 560111, India.
| | - K N Harish
- Department of Chemistry, BMS College of Engineering, Bull Temple Road, Bangalore, 560019, India
| | | | - T Kiran
- Department of Chemistry, SJB Institute of Technology, Bangalore, 560 060, India
| | - B Uma
- Department of Chemistry, Dayananda Sagar College of Engineering, Bangalore, 560111, India
| | - H C Ananda Murthy
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888, Adama, Ethiopia.
- Department of Prosthodontics, Saveetha Dental College & Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, 600077, Tamil Nadu, India.
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Pompapathi K, Anantharaju KS, Surendra BS, Meena S, Uma B, Chowdhury AP, Murthy HCA. Synergistic effect of a Bi 2Zr 2O 7 and hydroxyapatite composite: organic pollutant remediation, antibacterial and electrochemical sensing applications. RSC Adv 2023; 13:28198-28210. [PMID: 37753401 PMCID: PMC10518660 DOI: 10.1039/d3ra05222b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 09/08/2023] [Indexed: 09/28/2023] Open
Abstract
Global concern regarding the energy crisis and environmental pollution is increasing. The fabrication of efficient catalysts remains a long-term goal. Recently, green synthesis methods for catalyst fabrication have attracted the scientific community. Herein, a simple approach to synthesize bismuth zirconate-hydroxyapatite (BZO-HA) nanocomposites using Mentha spicata (mint) leaves as a reducing agent via a combustion method has been reported. The use of a green reducing agent provided economic attributes to this work. Among the prepared samples, the BZO-HA (20%) composite exhibited superior photocatalytic activity. The photodegradation efficiency of the composite reached 90.3% and 98.4% for methylene blue (MB) and rose Bengal (RB) dyes, respectively. The results showed the excellent optical performance of the prepared composites. The constructed sensor (BZO-HA 20%) for the very first time showed outstanding selectivity and performance towards sensing lead nitrate and dextrose compared to bare bismuth zirconate (BZO) and hydroxyapatite (HA). A three-electrode system using 0.1 M KCl was used for the study. The synthesized composite BZO-HA (20%) can sense lead nitrate and dextrose over the concentration range of 1-5 mM in the potential range from -1.0 V to +1.0 V. The BZO-HA composite was also investigated against Gram-negative (S. typhi) and Gram-positive (S. aureus) bacteria for antibacterial activity studies. Enhanced antibacterial activity was observed compared to bare BZO and HA catalysts. Thus, the prepared BZO-HA nanocomposite exhibited multifunctional applications.
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Affiliation(s)
- K Pompapathi
- Dr. D. Premachandra Sagar Centre for Advanced Materials, Dayananda Sagar College of Engineering Shavige Malleshwara Hills, Kumaraswamy Layout Bengaluru 560111 India
- Department of Material Science, Mangalore University Mangalagangotri Mangalore 574199 Karnataka India
| | - K S Anantharaju
- Dr. D. Premachandra Sagar Centre for Advanced Materials, Dayananda Sagar College of Engineering Shavige Malleshwara Hills, Kumaraswamy Layout Bengaluru 560111 India
- Department of Chemistry, Dayananda Sagar College of Engineering Shavige Malleshwara Hills, Kumaraswamy Layout Bengaluru 560111 India
| | - B S Surendra
- Department of Chemistry, Dayananda Sagar College of Engineering Shavige Malleshwara Hills, Kumaraswamy Layout Bengaluru 560111 India
| | - S Meena
- Department of Chemistry, Dayananda Sagar College of Engineering Shavige Malleshwara Hills, Kumaraswamy Layout Bengaluru 560111 India
| | - B Uma
- Department of Chemistry, Dayananda Sagar College of Engineering Shavige Malleshwara Hills, Kumaraswamy Layout Bengaluru 560111 India
| | - Arpita Paul Chowdhury
- Department of Chemistry, Dayananda Sagar College of Engineering Shavige Malleshwara Hills, Kumaraswamy Layout Bengaluru 560111 India
| | - H C Ananda Murthy
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University Adama, P O Box 1888 Ethiopia
- Department of Prosthodontics, Saveetha Dental College & Hospital, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University Chennai 600077 Tamil Nadu India
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Niu J, Shi J, Zhang Z, Zhang Y, Zhang Y, Yao B, Yu X, Wei H. Construction of SrTiO 3-BiOCl composite catalyst via facial microwave hydrothermal for highly efficient photocatalytic activity towards organic compounds degradation. ENVIRONMENTAL TECHNOLOGY 2023; 44:1877-1889. [PMID: 34890301 DOI: 10.1080/09593330.2021.2016987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 11/29/2021] [Indexed: 05/25/2023]
Abstract
This work mainly focuses on the preparation and performance study of SrTiO3-BiOCl composite photocatalysis. The SrTiO3-BiOCl photocatalysts are prepared via the facial microwave hydrothermal method. XRD, UV-vis DRS, SEM, TEM, XPS, N2 adsorption and desorption isothermal experiment, FT-IR, and PL are applied to characterize the prepared samples. The spherical particles of SrTiO3 grow on the flaky BiOCl, and the crystal size is uniform and evenly disperses on the BiOCl. The catalytic performance of the samples was evaluated over the degradation rates of methylene blue(MB). Typically, the clearance rates of MB reached to 99.65% over SrTiO3-BiOCl-50% under visible light, which was much higher than that of SrTiO3 and BiOCl (55.86%, 79.79%, respectively). The active species capturing experiments and ESR showed that the holes (h+) and ·OH are playing the main roles in the degradation process.
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Affiliation(s)
- Jinfen Niu
- School of Science, Xi'an University of Technology, Xi'an, People's Republic of China
- Research Center for Micro&Nano Materials, Xi'an University of Technology, Xi'an, People's Republic of China
| | - Jiahui Shi
- School of Science, Xi'an University of Technology, Xi'an, People's Republic of China
| | - Ziqi Zhang
- School of Science, Xi'an University of Technology, Xi'an, People's Republic of China
| | - Yue Zhang
- School of Science, Xi'an University of Technology, Xi'an, People's Republic of China
| | - Yuhang Zhang
- School of Science, Xi'an University of Technology, Xi'an, People's Republic of China
| | - Binghua Yao
- School of Science, Xi'an University of Technology, Xi'an, People's Republic of China
- Research Center for Micro&Nano Materials, Xi'an University of Technology, Xi'an, People's Republic of China
| | - Xiaojiao Yu
- School of Science, Xi'an University of Technology, Xi'an, People's Republic of China
- Research Center for Micro&Nano Materials, Xi'an University of Technology, Xi'an, People's Republic of China
| | - Hong Wei
- State Key Laboratory of Eco⁃Hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, People's Republic of China
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12
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Mousavi SM, Meraji SH, Sanati AM, Ramavandi B. Phenol red dye removal from wastewater using TiO 2-FSM-16 and Ni-FSM-16 photocatalysts. Heliyon 2023; 9:e14488. [PMID: 36925530 PMCID: PMC10011056 DOI: 10.1016/j.heliyon.2023.e14488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/27/2023] [Accepted: 03/08/2023] [Indexed: 03/12/2023] Open
Abstract
In this study, the performance of Ni-FSM-16 and TiO2-FSM-16 photocatalysts in phenol red removal was explored. The XRD, FE-SEM, and BET tests were used to characterize the catalysts. All experiments were performed at ambient temperature and under UV (20 W). The parameters including dye concentration (20-80 mg/L), photocatalyst concentration (0-8 g/L), UV exposure duration, and contact time (0-160 min) were optimized using RSM software. BET values of Ni-FSM-16 and TiO2-FSM-16 were 718.63 m2/g and 844.93 m2/g, respectively. TiO2-FSM-16 showed better performance in dye removal than Ni-FSM-16. At pH 3, the maximum dye removal by TiO2-FSM-16/UV and Ni-FSM-16/UV was obtained 87% and 64%, respectively. The positive hole species had the main role in photocatalytic phenol red removal. The reusability study was done for up to 7 cycles, but the catalysts can be reused effectively for up to 3 cycles. The synergistic factor for the TiO2-FSM-16 and TiO2-FSM-16/UV processes were calculated to be 1.55 and 2.12, respectively. The dye removal efficiency by TiO2-carbon and Ni-carbon was slightly lower than those obtained by the FSM-16 ones. The TiO2-FSM-16 and Ni-FSM-16 catalysts had a suitable surface and acceptable efficiency in phenol red removal.
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Affiliation(s)
| | | | - Ali Mohammad Sanati
- Department of Environmental Science, Persian Gulf Research Institute, Persian Gulf University, Bushehr, Iran
| | - Bahman Ramavandi
- Systems Environmental Health and Energy Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran
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13
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Lakshmanan P, Gayathri E, Thirumaran S, Ciattini S. Synthesis, crystal structure, DFT and Hirshfeld surface analysis of Ni(II) complexes: Precursor for nickel sulfide nanoparticles. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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14
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Phoon BL, Husin JMB, Lee KC, Leo BF, Yang TCK, Lai CW, Juan JC. Crystallinity and lattice vacancies of different mesoporous g-C 3N 4 for photodegradation of tetracycline and its cytotoxic implication. CHEMOSPHERE 2022; 308:136219. [PMID: 36041523 DOI: 10.1016/j.chemosphere.2022.136219] [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: 06/27/2022] [Revised: 07/23/2022] [Accepted: 08/23/2022] [Indexed: 06/15/2023]
Abstract
Tetracycline (TC) antibiotic removal from water bodies is important to provide clean water and sanitation. Mesoporous graphitic carbon nitride (GCN) photocatalyst derived from three different types of precursors manages to remove TC effectively under visible light irradiation. Among urea, thiourea, and melamine precursors, melamine-prepared GCN (MGCN) via thermal polymerization has the highest efficiency to photodegrade tetracycline (TC) antibiotics up to 99.5% (0.0122 min-1) within 240 min. The COD for TC removal by using MGCN was up to 77.5% after 240 min of degradation. This is due to the slow charge recombination and rapid charge carrier migration. The MGCN encounters different properties such as high crystallinity, dense structure allowing fast charges migration, and nitrogen vacancies that create a defect state that suppresses charge recombination. It was found that the conduction band (CB) of MGCN was located at a more negative position (ECB = -0.33 V) than (O2/O2•-) and the valence band (VB) was placed at a more positive position (EVB = 2.30 V) than (H2O/OH•), which allows generation of both radicals for photodegradation. Based on the cell viability test, the photodegraded TC in the water how non-toxicity toward Balb/c 3T3 cells after being irradiated (λ > 420 nm) for 240 min under visible light. The MGCN prepared in this study demonstrated the highest effectiveness and recyclable photocatalyst for the removal of TC among all GCNs.
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Affiliation(s)
- Bao Lee Phoon
- Nanotechnology & Catalysis Research Centre (NANOCAT), Level 3 Block A, IPS Building, Institute for Advanced Studies, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Juani Mazmin Binti Husin
- Industrial Biotechnology Research Center, SIRIM Berhad, 1, Persiaran Dato' Menteri, Section 2, 40700, Shah Alam, Selangor, Malaysia
| | - Kuan-Ching Lee
- Department of Chemical and Environmental Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
| | - Bey Fen Leo
- Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Thomas C-K Yang
- Department of Chemical Engineering, National Taipei University of Technology, Taipei City, Taiwan
| | - Chin Wei Lai
- Nanotechnology & Catalysis Research Centre (NANOCAT), Level 3 Block A, IPS Building, Institute for Advanced Studies, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Joon Ching Juan
- Nanotechnology & Catalysis Research Centre (NANOCAT), Level 3 Block A, IPS Building, Institute for Advanced Studies, Universiti Malaya, 50603, Kuala Lumpur, Malaysia.
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Verástegui-Domínguez LH, Elizondo-Villarreal N, Martínez-Delgado DI, Gracia-Pinilla MÁ. Eco-Friendly Reduction of Graphene Oxide by Aqueous Extracts for Photocatalysis Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3882. [PMID: 36364657 PMCID: PMC9655637 DOI: 10.3390/nano12213882] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
In the present work, reduced graphene oxide was obtained by green synthesis, using extracts of Larrea tridentata (gobernadora) and Capsicum Chinense (habanero). Graphene oxide was synthesized by the modified Hummers' method and subsequently reduced using natural extracts to obtain a stable and environmentally friendly graphene precursor. Consequently, the gobernadora aqueous extract was found to have a better reducing power than the habanero aqueous extract. This opportunity for green synthesis allows the application of RGO in photocatalysis for the degradation of the methylene blue dye. Degradation efficiencies of 60% and 90% were obtained with these materials.
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Affiliation(s)
- Luz H. Verástegui-Domínguez
- Materiales Nanoestructurados (CICFIM), Facultad de Ciencias Físico Matemáticas (FCFM), Universidad Autónoma de Nuevo León (UANL), 66450 San Nicolás de los Garza, N.L., Mexico
| | - Nora Elizondo-Villarreal
- Materiales Nanoestructurados (CICFIM), Facultad de Ciencias Físico Matemáticas (FCFM), Universidad Autónoma de Nuevo León (UANL), 66450 San Nicolás de los Garza, N.L., Mexico
| | - Dora Irma Martínez-Delgado
- Materiales Nanoestructurados (CICFIM), Facultad de Ciencias Físico Matemáticas (FCFM), Universidad Autónoma de Nuevo León (UANL), 66450 San Nicolás de los Garza, N.L., Mexico
| | - Miguel Ángel Gracia-Pinilla
- Materiales Nanoestructurados (CICFIM), Facultad de Ciencias Físico Matemáticas (FCFM), Universidad Autónoma de Nuevo León (UANL), 66450 San Nicolás de los Garza, N.L., Mexico
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, 7500AE Enschede, The Netherlands
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16
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Arumugam M, Seralathan KK, Praserthdam S, Tahir M, Praserthdam P. Synthesis of novel graphene aerogel encapsulated bismuth oxyiodide composite towards effective removal of methyl orange azo-dye under visible light. CHEMOSPHERE 2022; 303:135121. [PMID: 35623428 DOI: 10.1016/j.chemosphere.2022.135121] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 05/12/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
Development of novel and eco-friendly composite photocatalysts for the efficient removal of contaminants from wastewater is the need of the hour. In this study, visible light responsive novel graphene aerogel/bismuth oxyiodide (GA/BiOI) composite was synthesized via low-temperature solvothermal method. The synthesized GA/BiOI composite was tested for methyl orange (MO) azo-dye degradation under visible light. The graphene aerogel nanosheets were wrapped onto the surface of the each individual BiOI microsphere, which encourages the interconnection charge transfer process. The light absorption properties of GA/BiOI composite were increased with the addition of graphene aerogel. The optimal 5%-GA/BiOI composite displayed higher MO removal efficiency, which is ∼2 fold more than the bare BiOI photocatalyst. This enhanced photocatalytic activity was on account of lower recombination rate of charge carriers, improved light absorption, and the high surface area. In addition, the 5%-GA/BiOI composite showed good stability until 3 cycles without deactivation. The plausible MO degradation mechanism was also proposed over GA/BiOI under visible light. This work provides a new perspective on the design and synthesis of graphene aerogel-based composite for environmental applications.
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Affiliation(s)
- Malathi Arumugam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kamala-Kannan Seralathan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, Jeonbuk, 54596, South Korea
| | - Supareak Praserthdam
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
| | - Muhammad Tahir
- Chemical and Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates
| | - Piyasan Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
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17
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Copolymer-type magnetic graphene oxide with dual-function for adsorption of variety of dyes. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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18
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Development a novel and robust computational method for Hg/Ni ions separation from water sources using novel MOF/LDH nanocomposite material. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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19
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Masekela D, Hintsho-Mbita NC, Ntsendwana B, Mabuba N. Thin Films (FTO/BaTiO 3/AgNPs) for Enhanced Piezo-Photocatalytic Degradation of Methylene Blue and Ciprofloxacin in Wastewater. ACS OMEGA 2022; 7:24329-24343. [PMID: 35874262 PMCID: PMC9301950 DOI: 10.1021/acsomega.2c01699] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In this study, we investigate the ability of barium titanate/silver nanoparticles (BaTiO3/AgNPs) composites deposited on a fluorine-doped tin oxide (FTO) glass using tape-casting method to produce piezoelectric thin film (FTO/BaTiO3/AgNPs) for piezocatalytic, photocatalytic, and piezo-photocatalytic degradation of methylene blue (MB) and ciprofloxacin (CIP) in wastewater. The prepared piezoelectric materials (BaTiO3 and BaTiO3/AgNPs) were characterized using XRD, SEM, TEM, EDS, UV-DRS, TGA, PL, BET, EIS, and chronoamperometry. The UV-DRS showed the surface plasmon resonance (SPR) of Ag nanoparticles on the surface of BaTiO3 at a wavelength of 505 nm. The TEM images revealed the average Ag nanoparticle size deposited on the surface of BaTiO3 to be in the range of 10-15 nm. The chronoamperometry showed that the photoreduction of silver nanoparticles (AgNPs) onto BaTiO3 (BTO) resulted in a piezo-electrochemical current enhancement from 0.24 to 0.38 mA. The composites (FTO/BaTiO3/AgNPs) achieved a higher degradation of MB and CIP when the photocatalysis and piezocatalysis processes were merged. Under both ultrasonic vibration and UV light exposure, FTO/BTO/AgNPs degraded about 72 and 98% of CIP and MB from wastewater, respectively. These piezoelectric thin films were shown to be efficient and reusable even after five cycles, suggesting that they are highly stable. Furthermore, the reactive oxygen species studies demonstrated that hydroxyl radicals (·OH) were the most effective species during degradation of MB, with minor superoxide radicals (·O2 -) and holes (h+). From this study, we were able to show that these materials can be used as multifunctional materials as they were able to degrade both the dye and pharmaceutical pollutants. Moreover, they were more efficient through the piezo-photocatalytic process.
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Affiliation(s)
- Daniel Masekela
- Department
of Chemical Sciences (formerly known as Applied Chemistry), University of Johannesburg, P.O Box 17011, Doornfontein, Johannesburg 2028, South Africa
| | | | - Bulelwa Ntsendwana
- Energy,
Water, Environmental and Food Sustainable Technologies (EWEF-SusTech), Johannesburg 1709, South Africa
| | - Nonhlangabezo Mabuba
- Department
of Chemical Sciences (formerly known as Applied Chemistry), University of Johannesburg, P.O Box 17011, Doornfontein, Johannesburg 2028, South Africa
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20
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Huang Z, Zhang F, Tang Y, Wen Y, Wu Z, Fang Z, Tian X. Rapid Degradation of Rhodamine B through Visible-Photocatalytic Advanced Oxidation Using Self-Degradable Natural Perylene Quinone Derivatives-Hypocrellins. Bioengineering (Basel) 2022; 9:bioengineering9070307. [PMID: 35877358 PMCID: PMC9312347 DOI: 10.3390/bioengineering9070307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/01/2022] [Accepted: 07/08/2022] [Indexed: 12/07/2022] Open
Abstract
Hypocrellins (HYPs) are natural perylene quinone derivatives from Ascomycota fungi. Based on the excellent photosensitization properties of HYPs, this work proposed a photocatalytic advanced oxidation process (PAOP) that uses HYPs to degrade rhodamine B (RhB) as a model organic pollutant. A synergistic activity of HYPs and H2O2 (0.18 mM of HYPs, 0.33% w/v of H2O2) was suggested, resulting in a yield of 82.4% for RhB degradation after 60 min under visible light irradiation at 470−475 nm. The principle of pseudo-first-order kinetics was used to describe the decomposition reaction with a calculated constant (k) of 0.02899 min−1 (R2 = 0.983). Light-induced self-degradation of HYPs could be activated under alkaline (pH > 7) conditions, promising HYPs as an advanced property to alleviate the current dilemma of secondary pollution by synthetic photocatalysts in the remediation of emerging organic pollutants.
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Affiliation(s)
- Zhixian Huang
- Guangdong Key Laboratory of Fermentation & Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, 382 East Out Loop, University Park, Guangzhou 510006, China; (Z.H.); (Y.T.); (Y.W.); (Z.W.)
- Zhuhai Institute of Modern Industrial Innovation, South China University of Technology, 8 Fushan Road, Fushan Industrial Park, Zhuhai 519100, China
| | - Fan Zhang
- Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650204, China;
| | - Yanbo Tang
- Guangdong Key Laboratory of Fermentation & Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, 382 East Out Loop, University Park, Guangzhou 510006, China; (Z.H.); (Y.T.); (Y.W.); (Z.W.)
- Zhuhai Institute of Modern Industrial Innovation, South China University of Technology, 8 Fushan Road, Fushan Industrial Park, Zhuhai 519100, China
| | - Yongdi Wen
- Guangdong Key Laboratory of Fermentation & Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, 382 East Out Loop, University Park, Guangzhou 510006, China; (Z.H.); (Y.T.); (Y.W.); (Z.W.)
| | - Zhenqiang Wu
- Guangdong Key Laboratory of Fermentation & Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, 382 East Out Loop, University Park, Guangzhou 510006, China; (Z.H.); (Y.T.); (Y.W.); (Z.W.)
| | - Zhen Fang
- Biomass Group, Faculty of Engineering, Nanjing Agricultural University, Nanjing 210031, China
- Correspondence: (Z.F.); (X.T.)
| | - Xiaofei Tian
- Guangdong Key Laboratory of Fermentation & Enzyme Engineering, School of Biology and Biological Engineering, South China University of Technology, 382 East Out Loop, University Park, Guangzhou 510006, China; (Z.H.); (Y.T.); (Y.W.); (Z.W.)
- Zhuhai Institute of Modern Industrial Innovation, South China University of Technology, 8 Fushan Road, Fushan Industrial Park, Zhuhai 519100, China
- Correspondence: (Z.F.); (X.T.)
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21
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Jin H, Andalib V, Yasin G, Bokov DO, Kamal M, Alashwal M, Ghazali S, Algarni M, Mamdouh A. Computational simulation using machine learning models in prediction of CO2 absorption in environmental applications. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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22
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Novel in-situ synthesis of copper oxide nanoparticle in smart polymer microgel for catalytic reduction of methylene blue. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Hu X, Alsaikhan F, Sh. Majdi H, Olegovich Bokov D, Mohamed A, Sadeghi A. Predictive modeling and computational machine learning simulation of adsorption separation using advanced nanocomposite materials. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104062] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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24
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Prediction of molecular diffusivity of organic molecules based on group contribution with tree optimization and SVM models. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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Optimization and design of machine learning computational technique for prediction of physical separation process. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103680] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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26
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Zhu X, Wang X, Liu K, Zhou S, Alqsair UF, El-Shafay A. Machine learning simulation of Cr (VI) separation from aqueous solutions via a hierarchical nanostructure material. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118565] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Yin G, Jameel Ibrahim Alazzawi F, Mironov S, Reegu F, El-Shafay A, Lutfor Rahman M, Su CH, Lu YZ, Chinh Nguyen H. Machine learning method for simulation of adsorption separation: Comparisons of model’s performance in predicting equilibrium concentrations. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103612] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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28
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Implementation of AdaBoost and genetic algorithm machine learning models in prediction of adsorption capacity of nanocomposite materials. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118527] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Syah R, Piri F, Elveny M, Khan A. Artificial Intelligence simulation of water treatment using nanostructure composite ordered materials. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117046] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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30
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Luque-Morales PA, Lopez-Peraza A, Nava-Olivas OJ, Amaya-Parra G, Baez-Lopez YA, Orozco-Carmona VM, Garrafa-Galvez HE, Chinchillas-Chinchillas MDJ. ZnO Semiconductor Nanoparticles and Their Application in Photocatalytic Degradation of Various Organic Dyes. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7537. [PMID: 34947130 PMCID: PMC8708404 DOI: 10.3390/ma14247537] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/15/2021] [Accepted: 11/27/2021] [Indexed: 11/16/2022]
Abstract
The biosynthesis of oxide semiconductor nanoparticles (NPs) using materials found in nature opens a wide field of study focused on sustainability and environmental protection. Biosynthesized NPs have the capacity to eliminate organic dyes, which pollute water and cause severe damage to the environment. In the present work, the green synthesis of zinc oxide (ZnO) NPs was carried out using Capsicum annuum var. Anaheim extract. The photocatalytic elimination of methylene blue (MB), methyl orange (MO), and Rhodamine B (RhB) in UV radiation was evaluated. The materials were characterized by scanning and transmission electron microscopy (SEM and TEM) and SEM-coupled energy dispersive spectroscopy (EDS), attenuated total reflectance-infrared (ATR-IR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Photoluminescence (PL), and ultraviolet-visible spectroscopy (UV-Vis). The TEM analysis showed the NPs have an average size of 40 nm and quasi-spherical shape. ATR-IR showed the ZnO NPs contained functional groups from the extract. The analysis through XRD indicated that the NPs have a hexagonal zincite crystal structure with an average crystallite size of approximately 17 nm. The photoluminescence spectrum (PL) presented an emission band at 402 nm. From the UV-Vis spectra and TAUC model, the band-gap value was found to be 2.93 eV. Finally, the photocatalytic assessment proved the ZnO NPs achieved 100% elimination of MB at 60 min exposure, and 85 and 92% degradation of MO and RhB, respectively, at 180 min. This indicates that ZnO NPs, in addition to using a friendly method for their synthesis, manage to have excellent photocatalytic activity in the degradation of various organic pollutants.
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Affiliation(s)
- Priscy Alfredo Luque-Morales
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad Autónoma de Baja California (UABC), Ensenada 22860, Baja California, Mexico; (P.A.L.-M.); (A.L.-P.); (O.J.N.-O.); (G.A.-P.); (Y.A.B.-L.); (H.E.G.-G.)
| | - Alejandra Lopez-Peraza
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad Autónoma de Baja California (UABC), Ensenada 22860, Baja California, Mexico; (P.A.L.-M.); (A.L.-P.); (O.J.N.-O.); (G.A.-P.); (Y.A.B.-L.); (H.E.G.-G.)
| | - Osvaldo Jesus Nava-Olivas
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad Autónoma de Baja California (UABC), Ensenada 22860, Baja California, Mexico; (P.A.L.-M.); (A.L.-P.); (O.J.N.-O.); (G.A.-P.); (Y.A.B.-L.); (H.E.G.-G.)
| | - Guillermo Amaya-Parra
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad Autónoma de Baja California (UABC), Ensenada 22860, Baja California, Mexico; (P.A.L.-M.); (A.L.-P.); (O.J.N.-O.); (G.A.-P.); (Y.A.B.-L.); (H.E.G.-G.)
| | - Yolanda Angelica Baez-Lopez
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad Autónoma de Baja California (UABC), Ensenada 22860, Baja California, Mexico; (P.A.L.-M.); (A.L.-P.); (O.J.N.-O.); (G.A.-P.); (Y.A.B.-L.); (H.E.G.-G.)
| | | | - Horacio Edgardo Garrafa-Galvez
- Facultad de Ingeniería, Arquitectura y Diseño, Universidad Autónoma de Baja California (UABC), Ensenada 22860, Baja California, Mexico; (P.A.L.-M.); (A.L.-P.); (O.J.N.-O.); (G.A.-P.); (Y.A.B.-L.); (H.E.G.-G.)
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Ding Y, Jin Y, Yao B, Khan A. Artificial intelligence based simulation of Cd(II) adsorption separation from aqueous media using a nanocomposite structure. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117772] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Abd
El Khalk AA, Betiha MA, Mansour AS, Abd El Wahed MG, Al-Sabagh AM. High Degradation of Methylene Blue Using a New Nanocomposite Based on Zeolitic Imidazolate Framework-8. ACS OMEGA 2021; 6:26210-26220. [PMID: 34660980 PMCID: PMC8515569 DOI: 10.1021/acsomega.1c03195] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/16/2021] [Indexed: 05/28/2023]
Abstract
The development of broad-spectrum ultraviolet- and visible-light photocatalysts constitutes one of the most significant challenges in the field of photocatalytic pollutant removal. Here, the efficiency of the directly prepared nitrogen-doped quantum zeolitic imidazolate framework (ZIF)-8-dot catalyst for the photocatalytic degradation of the methylene blue dye was reported. The prepared catalysts were characterized using Brunauer-Emmett-Teller, X-ray diffraction, ultraviolet-visible spectroscopy, photoluminescence spectroscopy, Fourier transform infrared spectroscopy, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy techniques. Under sunlight irradiation, the 1% nitrogen-doped quantum-ZIF-8-dot catalyst showed 75% photodegradation in half an hour and ≈93% photodegradation after 3 hours compared to ≈87% for the ZIF-8 metal-organic framework. The high performance of the 1% nitrogen-doped quantum-ZIF-8-dot catalyst was attributed to the synergism between the catalyst components, upconverted fluorescence property of nitrogen-doped quantum dots, and charge (electrons-holes) separation. The reactive radical test revealed that the hydroxyl radical was dominant. The step-scheme heterojunction mechanism for photocatalytic degradation was also deduced. The kinetic study through the photocatalytic isotherms revealed that the pseudo-first-order kinetic model can describe the reaction mechanism.
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Affiliation(s)
| | | | - Ahmed Sadek Mansour
- National
Institute of Laser Enhanced Sciences (NILES), Cairo University, Cairo 12613, Egypt
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Liew ASY, Nguang SY, Minggu LJ, Tahir N, Moh PY. Graphene oxide incorporated amino‐functionalized iron terephthalate composite as a heterogeneous Fenton‐like catalyst. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Aaron Shun Yao Liew
- Industrial Chemistry Programme, Faculty of Science and Natural Resources Universiti Malaysia Sabah Kota Kinabalu Sabah Malaysia
| | - Sing Yew Nguang
- Industrial Chemistry Programme, Faculty of Science and Natural Resources Universiti Malaysia Sabah Kota Kinabalu Sabah Malaysia
| | | | - Norini Tahir
- Industrial Chemistry Programme, Faculty of Science and Natural Resources Universiti Malaysia Sabah Kota Kinabalu Sabah Malaysia
| | - Pak Yan Moh
- Industrial Chemistry Programme, Faculty of Science and Natural Resources Universiti Malaysia Sabah Kota Kinabalu Sabah Malaysia
- Water Research Unit Faculty of Science and Natural Resources, Universiti Malaysia Sabah Kota Kinabalu Sabah Malaysia
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34
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Artificial intelligence simulation of water treatment using a novel bimodal micromesoporous nanocomposite. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117296] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Chiappara C, Arrabito G, Ferrara V, Scopelliti M, Sancataldo G, Vetri V, Chillura Martino DF, Pignataro B. Improved Photocatalytic Activity of Polysiloxane TiO 2 Composites by Thermally Induced Nanoparticle Bulk Clustering and Dye Adsorption. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10354-10365. [PMID: 34461725 PMCID: PMC8413002 DOI: 10.1021/acs.langmuir.1c01475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/27/2021] [Indexed: 05/24/2023]
Abstract
Fine control of nanoparticle clustering within polymeric matrices can be tuned to enhance the physicochemical properties of the resulting composites, which are governed by the interplay of nanoparticle surface segregation and bulk clustering. To this aim, out-of-equilibrium strategies can be leveraged to program the multiscale organization of such systems. Here, we present experimental results indicating that bulk assembly of highly photoactive clusters of titanium dioxide nanoparticles within an in situ synthesized polysiloxane matrix can be thermally tuned. Remarkably, the controlled nanoparticle clustering results in improved degradation photocatalytic performances of the material under 1 sun toward methylene blue. The resulting coatings, in particular the 35 wt % TiO2-loaded composites, show a photocatalytic degradation of about 80%, which was comparable to the equivalent amount of bare TiO2 and two-fold higher with respect to the corresponding composites not subjected to thermal treatment. These findings highlight the role of thermally induced bulk clustering in enhancing photoactive nanoparticle/polymer composite properties.
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Affiliation(s)
- Clara Chiappara
- Department
of Physics and Chemistry (DiFC) Emilio Segrè, University of Palermo, Building 17, V.le delle Scienze, Palermo 90128, Italy
- National
Interuniversity Consortium of Materials Science and Technology (INSTM),
UdR of Palermo, Florence 50121, Italy
| | - Giuseppe Arrabito
- Department
of Physics and Chemistry (DiFC) Emilio Segrè, University of Palermo, Building 17, V.le delle Scienze, Palermo 90128, Italy
| | - Vittorio Ferrara
- National
Interuniversity Consortium of Materials Science and Technology (INSTM),
UdR of Palermo, Florence 50121, Italy
- Department
of Biological, Chemical and Pharmaceutical Sciences and Technologies
(STEBICEF), University of Palermo, Building 16, V.le delle Scienze, Palermo 90128, Italy
| | - Michelangelo Scopelliti
- Department
of Physics and Chemistry (DiFC) Emilio Segrè, University of Palermo, Building 17, V.le delle Scienze, Palermo 90128, Italy
| | - Giuseppe Sancataldo
- Department
of Physics and Chemistry (DiFC) Emilio Segrè, University of Palermo, Building 17, V.le delle Scienze, Palermo 90128, Italy
| | - Valeria Vetri
- Department
of Physics and Chemistry (DiFC) Emilio Segrè, University of Palermo, Building 17, V.le delle Scienze, Palermo 90128, Italy
| | - Delia Francesca Chillura Martino
- National
Interuniversity Consortium of Materials Science and Technology (INSTM),
UdR of Palermo, Florence 50121, Italy
- Department
of Biological, Chemical and Pharmaceutical Sciences and Technologies
(STEBICEF), University of Palermo, Building 16, V.le delle Scienze, Palermo 90128, Italy
| | - Bruno Pignataro
- Department
of Physics and Chemistry (DiFC) Emilio Segrè, University of Palermo, Building 17, V.le delle Scienze, Palermo 90128, Italy
- National
Interuniversity Consortium of Materials Science and Technology (INSTM),
UdR of Palermo, Florence 50121, Italy
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RSM-Based Preparation and Photoelectrocatalytic Performance Study of RGO/TiO2 NTs Photoelectrode. Processes (Basel) 2021. [DOI: 10.3390/pr9091492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this paper, reduced graphene oxide (RGO) was prepared by a modified Hummers method and chemical reduction method, and an RGO/TiO2 NTs (RGO/TiO2 nanotubes) photoelectrode was prepared by the electrochemical deposition method. The as-prepared RGO/TiO2 NTs were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD), and their photocatalytic activities were investigated by measuring the degradation of methylene blue (MB) under simulated solar light irradiation. The SEM and XRD results indicated that the original tubular structure of TiO2-NTs was not changed after RGO modification. The surface of the TiO2 NTs photoelectrode was covered with a non-uniform, flake-shaped reduced graphene oxide film. The thickness of the RGO/TiO2 NTs was increased to about 22.60 nm. The impedance of the RGO/TiO2 NTs was smaller than that of the TiO2 NT photoelectrode. The optimal preparation conditions of RGO/TiO2 NT photoelectrodes were investigated by using a single factor method and response surface method. The best preparation conditions were as follows: deposition potential at 1.19 V, deposition time of 10.27 min, and deposition temperature at 24.94 °C.
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Kurniawan TA, Singh D, Avtar R, Othman MHD, Hwang GH, Albadarin AB, Rezakazemi M, Setiadi T, Shirazian S. Resource recovery from landfill leachate: An experimental investigation and perspectives. CHEMOSPHERE 2021; 274:129986. [PMID: 33979934 DOI: 10.1016/j.chemosphere.2021.129986] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 01/12/2021] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
This work investigates the performances of coconut shell waste-based activated carbon (CSWAC) adsorption in batch studies for removal of ammoniacal nitrogen (NH3-N) and refractory pollutants (as indicated by decreasing COD concentration) from landfill leachate. To valorize unused resources, coconut shell, recovered and recycled from agricultural waste, was converted into activated carbon, which can be used for leachate treatment. The ozonation of the CSWAC was conducted to enhance its removal performance for target pollutants. The adsorption mechanisms of refractory pollutants by the adsorbent are proposed. Perspectives on nutrient recovery technologies from landfill leachate from the view-points of downstream processing are presented. Their removal efficiencies for both recalcitrant compounds and ammoniacal nitrogen were compared to those of other techniques reported in previous work. It is found that the ozonated CSWAC substantially removed COD (i.e. 76%) as well as NH3-N (i.e. 75%), as compared to the CSWAC without pretreatment (i.e. COD: 44%; NH3-N: 51%) with NH3-N and COD concentrations of 2750 and 8500 mg/L, respectively. This reveals the need of ozonation for the adsorbent to improve its performance for the removal of COD and NH3-N at optimized reactions: 30 g/L of CSWAC, pH 8, 200 rpm of shaking speed and 20 min of reaction time. Nevertheless, treatment of the leachate samples using the ozonated CSWAC alone was still unable to result in treated effluents that could meet the COD and NH3-N discharge standards below 200 and 5 mg/L, respectively, set by legislative requirements. This reveals that another treatment is necessary to be undertaken to comply with the requirement of their effluent limit.
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Affiliation(s)
| | - Deepak Singh
- Department of Geography and Resource Management, Chinese University of Hong Kong, Hong Kong
| | - Ram Avtar
- Faculty of Environmental Earth Sciences, Hokkaido University, Sapporo, 060-0810, Japan
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, University Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Goh Hui Hwang
- School of Electrical Engineering, Guangxi University, Nanning, Guangxi, PR China
| | - Ahmad B Albadarin
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, Ireland
| | - Mashallah Rezakazemi
- Faculty of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood, Iran
| | - Tjandra Setiadi
- Center for Environmental Studies, Bandung Institute of Technology, Bandung, 40135, Indonesia
| | - Saeed Shirazian
- Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, 550000, Viet Nam; Laboratory of Computational Modeling of Drugs, South Ural State University, 454080, Chelyabinsk, Russia
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Jinga LI, Popescu-Pelin G, Socol G, Mocanu S, Tudose M, Culita DC, Kuncser A, Ionita P. Chemical Degradation of Methylene Blue Dye Using TiO 2/Au Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1605. [PMID: 34207350 PMCID: PMC8234427 DOI: 10.3390/nano11061605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/10/2021] [Accepted: 06/16/2021] [Indexed: 12/11/2022]
Abstract
Gold nanoparticles (~10 nm) were deposited on titanium dioxide nanoparticles (~21 nm) and the material obtained was characterized using IR, UV-Vis, N2 adsorption-desorption isotherm, DLS, EDS (EDX), TEM, XPS, and XRD techniques. It was found that the methylene blue dye is degraded in the presence of this material when using hydrogen peroxide as the oxidant. Tests were performed at 2, 4, 6, and 24 h, with hydrogen peroxide contents varying from 1 to 5 mg/mL. Longer exposure time and a higher content of oxidant led to the degradation of methylene blue dye at up to 90%. The material can be reused several times with no loss of activity.
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Affiliation(s)
- Luiza Izabela Jinga
- Faculty of Chemistry, University of Bucharest, 90 Panduri, 050663 Bucharest, Romania;
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (G.P.-P.); (G.S.)
| | - Gianina Popescu-Pelin
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (G.P.-P.); (G.S.)
| | - Gabriel Socol
- National Institute for Lasers, Plasma and Radiation Physics, 077125 Magurele, Romania; (G.P.-P.); (G.S.)
| | - Sorin Mocanu
- Institute of Physical Chemistry, 202 Spl. Independentei, 050663 Bucharest, Romania; (S.M.); (D.C.C.)
| | - Madalina Tudose
- Institute of Physical Chemistry, 202 Spl. Independentei, 050663 Bucharest, Romania; (S.M.); (D.C.C.)
| | - Daniela C. Culita
- Institute of Physical Chemistry, 202 Spl. Independentei, 050663 Bucharest, Romania; (S.M.); (D.C.C.)
| | - Andrei Kuncser
- National Institute of Materials Physics, 077125 Magurele, Romania;
| | - Petre Ionita
- Faculty of Chemistry, University of Bucharest, 90 Panduri, 050663 Bucharest, Romania;
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Kurniawan TA, Singh D, Xue W, Avtar R, Othman MHD, Hwang GH, Setiadi T, Albadarin AB, Shirazian S. Resource recovery toward sustainability through nutrient removal from landfill leachate. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 287:112265. [PMID: 33730674 DOI: 10.1016/j.jenvman.2021.112265] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 02/09/2021] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
This study investigated the feasibility of integrated ammonium stripping and/or coconut shell waste-based activated carbon (CSWAC) adsorption in treating leachate samples. To valorize unused biomass for water treatment application, the adsorbent originated from coconut shell waste. To enhance its performance for target pollutants, the adsorbent was pretreated with ozone and NaOH. The effects of pH, temperature, and airflow rate on the removal of ammoniacal nitrogen (NH3-N) and refractory pollutants were studied during stripping alone. The removal performances of refractory compounds in this study were compared to those of other treatments previously reported. To contribute new knowledge to the field of study, perspectives on nutrients removal and recovery like phosphorus and nitrogen are presented. It was found that the ammonium stripping and adsorption treatment using the ozonated CSWAC attained an almost complete removal (99%) of NH3-N and 90% of COD with initial NH3-N and COD concentrations of 2500 mg/L and 20,000 mg/L, respectively, at optimized conditions. With the COD of treated effluents higher than 200 mg/L, the combined treatments were not satisfactory enough to remove target refractory compounds. Therefore, further biological processes are required to complete their biodegradation to meet the effluent limit set by environmental legislation. As this work has contributed to resource recovery as the driving force of landfill management, it is important to note the investment and operational expenses, engineering applicability of the technologies, and their environmental concerns and benefits. If properly managed, nutrient recovery from waste streams offers environmental and socio-economic benefits that would improve public health and create jobs for the local community.
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Affiliation(s)
- Tonni Agustiono Kurniawan
- College of the Environment and Ecology, Xiamen University (XMU), Xiamen 361102, Fujian Province, PR China; Department of Energy, Environment, and Climate Change, School of Environment, Resources, and Development, Asian Institute of Technology, PO Box 4, Klong Luang, Pathumthani 12120, Thailand.
| | - Deepak Singh
- Research Institute for Humanity and Nature (RIHN), Kamigamo, Kita-ku, Kyoto 603-8047, Japan
| | - Wenchao Xue
- Department of Energy, Environment, and Climate Change, School of Environment, Resources, and Development, Asian Institute of Technology, PO Box 4, Klong Luang, Pathumthani 12120, Thailand
| | - Ram Avtar
- Faculty of Environmental Earth Sciences, Hokkaido University, Sapporo 060-0810, Japan
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, University Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Goh Hui Hwang
- School of Electrical Engineering, Guangxi University, Nanning, Guangxi, PR China
| | - Tjandra Setiadi
- Center for Environmental Studies, Bandung Institute of Technology, Bandung 40135, Indonesia
| | - Ahmad B Albadarin
- Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Saeed Shirazian
- Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, 550000, Viet Nam; Laboratory of Computational Modeling of Drugs, South Ural State University, 76 Lenin prospekt, Chelyabinsk 454080, Russia
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Fu D, Kurniawan TA, Lin L, Li Y, Avtar R, Dzarfan Othman MH, Li F. Arsenic removal in aqueous solutions using FeS 2. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 286:112246. [PMID: 33667817 DOI: 10.1016/j.jenvman.2021.112246] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 02/04/2021] [Accepted: 02/20/2021] [Indexed: 06/12/2023]
Abstract
This study tested the technical feasibility of pyrite and/or persulfate oxidation system for arsenic (As) removal from aqueous solutions. The effects of persulfate on As removal by the pyrite in the integrated treatment were also investigated. Prior to the persulfate addition into the reaction system, the physico-chemical interactions between As and the pyrite alone in aqueous solutions were explored in batch studies. The adsorption mechanisms of As by the adsorbent were also presented. At the same As concentration of 5 mg/L, it was found that As(III) attained a longer equilibrium time (8 h) than As(V) (2 h), while the pyrite worked effectively at pH ranging from 6 to 11. At optimum conditions (0.25 g/L of pyrite, pH 8.0 and 5 mg/L of As(III) concentration), the addition of persulfate (0.5 mM) into the reaction promoted a complete removal of arsenic from the solutions. Consequently, this enabled the treated effluents to meet the arsenic maximum contaminant limit (MCL) of <10 μg/L according to the World Health Organization (WHO)'s requirements. The redox mechanisms, which involved electron transfer from the S22- of the pyrite to Fe3+, supply Fe2+ for persulfate decomposition, oxidizing As(III) to As(V). The sulfur species played roles in the redox cycle of the Fe3+/Fe2+ of the pyrite by giving its electrons, while the As(III) oxidation to As(V) was attributed to the pyrite. Overall, this work reveals the applicability of the pyrite as an adsorbent for water treatment and the importance of persulfate addition to promote a complete As removal from aqueous solutions.
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Affiliation(s)
- Dun Fu
- National Engineering Research Center of Coal Mine Water Hazard Controlling, School of Resources and Civil Engineering, Suzhou University, Suzhou 234000, Anhui, PR China; College of the Environment & Ecology, Xiamen University, Xiamen, 361102, Fujian, PR China
| | | | - Lan Lin
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aoba, Aramaki, Aoba-ku, Sendai, 980-8579, Japan
| | - Yaqiong Li
- School of Environment, Harbin Institute of Technology, Harbin, 150090, Heilongjiang, PR China
| | - Ram Avtar
- Faculty of Environment Earth Sciences, Hokkaido University, Sapporo, 0600810, Japan
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Feng Li
- National Engineering Research Center of Coal Mine Water Hazard Controlling, School of Resources and Civil Engineering, Suzhou University, Suzhou 234000, Anhui, PR China
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Kappadan S, Thomas S, Kalarikkal N. Enhanced photocatalytic performance of BaTiO3/g-C3N4 heterojunction for the degradation of organic pollutants. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138513] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Parthipan P, Cheng L, Rajasekar A, Govarthanan M, Subramania A. Biologically reduced graphene oxide as a green and easily available photocatalyst for degradation of organic dyes. ENVIRONMENTAL RESEARCH 2021; 196:110983. [PMID: 33705769 DOI: 10.1016/j.envres.2021.110983] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/16/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
The disposal of untreated textile industrial wastewater having unmanageable pollutants is a global issue. Eco-friendly remediation technology is needed for the removal of environmental contaminants. In this study, a simple hydrothermal method is adapted to synthesis reduced graphene oxide (PErGO) using Phyllanthus emblica fruits extract and used as a photocatalyst for the degradation of synthetic toxic dyes. The physicochemical properties of green synthesized PErGO are confirmed using UV-Vis spectroscopy, Raman spectroscopy, Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction. The ID/IG ratio is found as 1.02 for GO which is improved to 1.15 for PErGO, which confirms the existence of unrepaired defects after the elimination of negatively charged O2 moieties from the surface of GO. Field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) analysis show well-exploited PErGO morphology. The photocatalytic removal of methylene blue (MB) and methyl orange (MO) dyes is confirmed using UV-vis spectrophotometer. PErGO shows about 92% of MO and 91% of MB degradation within 90 min of sunlight exposure while carried out as a mixed dye degradation. The sustainability of this catalyst is confirmed by testing it for five subsequent degradation cycles and noticed a stable and significant degradation activity. Outcomes from this study suggest that eco-friendly PErGO can be used as an alternate sustainable material to treat a large volume of wastewater from various dye industries.
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Affiliation(s)
- Punniyakotti Parthipan
- Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India
| | - Liang Cheng
- School of Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, China
| | - Aruliah Rajasekar
- Environmental Molecular Microbiology Research Laboratory, Department of Biotechnology, Thiruvalluvar University, Vellore, 632115, India
| | - Muthusamy Govarthanan
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea.
| | - Angaiah Subramania
- Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India.
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Fu D, Kurniawan TA, Avtar R, Xu P, Othman MHD. Recovering heavy metals from electroplating wastewater and their conversion into Zn 2Cr-layered double hydroxide (LDH) for pyrophosphate removal from industrial wastewater. CHEMOSPHERE 2021; 271:129861. [PMID: 33736203 DOI: 10.1016/j.chemosphere.2021.129861] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/31/2020] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
This work incorporated technological values into Zn2Cr-layered double hydroxide (LDH), synthesized from unused resources, for removal of pyrophosphate (PP) in electroplating wastewater. To adopt a resource recovery for the remediation of the aquatic environment, the Zn2Cr-LDH was fabricated by co-precipitation from concentrated metals of plating waste that remained as industrial by-products from metal finishing processes. To examine its applicability for water treatment, batch experiments were conducted at optimum M2+/M3+, pH, reaction time, and temperature. To understand the adsorption mechanisms of the PP by the adsorbent, the Zn2Cr-LDH was characterized using Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) analyses before and after adsorption treatment. An almost complete PP removal was attained by the Zn2Cr-LDH at optimized conditions: 50 mg/L of PP, 1 g/L of adsorbent, pH 6, and 6 h of reaction. Ion exchange controlled the PP removal by the adsorbent at acidic conditions. The PP removal well fitted a pseudo-second-order kinetics and/or the Langmuir isotherm model with 79 mg/g of PP adsorption capacity. The spent Zn2Cr-LDH was regenerated with NaOH with 86% of efficiency for the first cycle. The treated effluents could comply with the discharge limit of <1 mg/L. Overall, the use of the Zn2Cr-LDH as a low-cost adsorbent for wastewater treatment has contributed to national policy that promotes a zero-waste approach for a circular economy (CE) through a resource recovery paradigm.
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Affiliation(s)
- Dun Fu
- Key Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institute, School of Resources and Civil Engineering, Suzhou University, Suzhou, 234000, Anhui, PR China; College of the Environment and Ecology, Xiamen University, Xiamen, 361102, Fujian province, PR China
| | - Tonni Agustiono Kurniawan
- College of the Environment and Ecology, Xiamen University, Xiamen, 361102, Fujian province, PR China; China-ASEAN College of Marine Sciences, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia.
| | - Ram Avtar
- Faculty of Environment Earth Sciences, Hokkaido University, Sapporo, 060-0810, Japan
| | - Pan Xu
- Key Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institute, School of Resources and Civil Engineering, Suzhou University, Suzhou, 234000, Anhui, PR China
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
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Bao S, Wang Y, Yu Y, Yang W, Sun Y. Cross-linked sulfydryl-functionalized graphene oxide as ultra-high capacity adsorbent for high selectivity and ppb level removal of mercury from water under wide pH range. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 271:116378. [PMID: 33401212 DOI: 10.1016/j.envpol.2020.116378] [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: 06/04/2020] [Revised: 11/24/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
It is highly desirable but remains extremely challenging to develop a facile strategy to prepare adsorbent for dealing with heavy metal pollution in water. Here, we report a facile approach for preparing sulfydryl-functionalized graphene oxide (S-GO) by cross-linking method with an unprecedented adsorption capacity and ultrahigh selectivity for efficient Hg(II) removal. The adsorbents exhibit a prominent performance in capturing Hg(II) from wastewater with a record-high adsorption capacity of 3490 mg/g and rapid kinetics to reduce Hg(II) contaminants below the discharge standard of drinking water (2 ppb) within 60 min under a wide pH range even in the coexistent of other interfering metal ions. In addition, the adsorbents can be also easily recycled and reused multiple times with no apparent decline in removal efficiency. Considering the broad diversity, we developed also a magnetic Fe3O4/S-GO adsorbent by a simple chemical cross-linking reaction to achieve rapid separation of S-GO from their aqueous solution. In addition, the adsorbents were successfully applied in dealing with the practical industrial wastewater. The results indicate the potential of rationally designed sulfydryl-functionalized graphene oxide for high performance Hg(II) removal.
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Affiliation(s)
- Shuangyou Bao
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China; MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Yingjun Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Yongsheng Yu
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, China.
| | - Weiwei Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
| | - Yinyong Sun
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China
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45
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Alibeigi-Beni S, Habibi Zare M, Pourafshari Chenar M, Sadeghi M, Shirazian S. Design and optimization of a hybrid process based on hollow-fiber membrane/coagulation for wastewater treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:8235-8245. [PMID: 33052567 DOI: 10.1007/s11356-020-11037-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
Treatment of textile wastewater using ultrafiltration membranes was carried out in this study. Since membrane fouling is a major operational problem that decreases the membrane separation efficiency, wastewater was treated with polyaluminum chloride (PACl) and alum (aluminum sulfate) as coagulant to decrease the fouling of ultrafiltration membranes. PACl was selected as the best coagulant in the experiments. Also, chitosan was used as coagulant aid upon developing the hybrid process. The obtained optimum dosage of PACl coagulant was 100 mg/L, and maximum turbidity and COD removal of 35% and 66% were attained, respectively. The pretreated wastewater by coagulation was sent to ultrafiltration process for further removal of turbidity and COD. Three ultrafiltration hollow-fiber membranes made of polypropylene (PP), polyvinylidene fluoride (PVDF), and polyethersulfone (PES) were applied in this study. In general, the filtration results were evaluated for two types of samples treated under coagulation and without treatment; the results were unfavorable for the second type. The effects of transmembrane pressure (TMP) and cross velocity on membranes performance were also investigated for process optimization. The obtained results showed that PVDF membrane had the highest flux and turbidity removal, whereas the PES membrane had the highest COD removal. Also, the results revealed that turbidity and COD removal by all membranes were decreased by increasing TMP and cross velocity.
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Affiliation(s)
- Sajjad Alibeigi-Beni
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, P.O. Box 91775-1111, Mashhad, Iran
| | - Masoud Habibi Zare
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Mahdi Pourafshari Chenar
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, P.O. Box 91775-1111, Mashhad, Iran
| | - Morteza Sadeghi
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Saeed Shirazian
- Institute of Research and Development, Duy Tan University, Da Nang, 550000, Vietnam.
- The Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, 550000, Vietnam.
- Laboratory of Computational Modeling of Drugs, South Ural State University, 76 Lenin prospekt, Chelyabinsk, 454080, Russia.
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46
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Bhat DK, Bantawal H, Shenoy US. Rhodium doping augments photocatalytic activity of barium titanate: effect of electronic structure engineering. NANOSCALE ADVANCES 2020; 2:5688-5698. [PMID: 36133860 PMCID: PMC9418416 DOI: 10.1039/d0na00702a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 11/04/2020] [Indexed: 05/29/2023]
Abstract
Environmentally friendly BaTiO3 is emerging as a potential photocatalyst due to its tunable electronic structure. Although originally believed to be a poor photocatalyst due to its wide band gap, several strategies have been implemented to reduce its band gap. One such approach is doping, but this often leads to the formation of mid gap recombination centers and diminishes the efficiency of the material. In the present work, we study for the first time the effect of site occupancy of Rh on the electronic structure of BaTiO3. As the theoretical results reveal that if Rh occupies both Ba and Ti sites simultaneously it leads to the formation of mid gap states, an experimental approach is implemented to reduce the band gap of BaTiO3 while simultaneously avoiding the formation of recombination centers. The facile one pot hydrothermal approach reported here directs the Rh towards Ba sites leading to a decrease in the band gap due to the appearance of donor Rh3+ states, suppressing the formation of Rh4+ states. A promising photocatalytic activity of 96% degradation of methylene blue dye in 120 minutes was observed for the 0.5 Rh sample indicating the high efficiency of the material.
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Affiliation(s)
- D Krishna Bhat
- Department of Chemistry, National Institute of Technology Karnataka Surathkal Mangalore-575025 India
| | - Harsha Bantawal
- Department of Chemistry, National Institute of Technology Karnataka Surathkal Mangalore-575025 India
| | - U Sandhya Shenoy
- Department of Chemistry, College of Engineering and Technology, Srinivas University Mukka Mangalore-574146 India
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Mahmoudi F, Farhadi S, Jarosova M, Sillanpää M. Preparation of novel hybrid nanomaterials based on LaFeO
3
and phosphotungstic acid as a highly efficient magnetic photocatalyst for the degradation of methylene blue dye solution. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Saeed Farhadi
- Department of Chemistry Lorestan University Khorramabad Iran
| | - Marketa Jarosova
- Institute of Physics of the Czech Academy of Sciences Prague Czech Republic
| | - Mika Sillanpää
- Institute of Research and Development and Faculty of Environment and Chemical Engineering Duy Tan University Da Nang Vietnam
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48
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Li Y, Wang L, Xiao Y, Tian G, Tian C, Fu H. In situ intercalation and exploitation of Co 3O 4 nanoparticles grown on carbon nitride nanosheets for highly efficient degradation of methylene blue. Dalton Trans 2020; 49:14665-14672. [PMID: 33063805 DOI: 10.1039/d0dt02982c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The low surface area, poor electrical conductivity, and rapid electron-hole recombination in bulk C3N4 limit its photocatalytic activity, which makes it challenging to improve the performance of bulk C3N4. Herein, an effective strategy is proposed to fabricate Co3O4/C3N4 heterojunctions (Co3O4 nanoparticles grown on C3N4 nanosheets), where bulk C3N4 is exfoliated to thin nanosheets. The bulk C3N4 precursor was synthesized with the hydrothermal treatment of melamine solution, and Co2+ ions were then inserted into the interlayer of the precursor through a vacuum-assisted intercalation process. Subsequently, the precursor was exfoliated to C3N4 nanosheets, and 15 nm Co3O4 nanoparticles were simultaneously formed using in situ thermal polycondensation. The Brunauer-Emmett-Teller (BET) specific surface area of the prepared heterojunction was 21 times higher than that of bulk C3N4, and thus more active sites were exposed on the surface of the heterostructure. Co3O4 nanoparticles contained oxygen vacancies, and the type-II transfer mechanism between these nanoparticles and C3N4 could be used to effectively separate photogenic carriers and improve the electron mobility. As expected, the heterostructure exhibited an excellent photocatalyzed degradation rate of 99.5% for methylene blue within 30 min (10 mg catalyst, wavelength >420 nm) under visible light irradiation, which was nearly three times higher than that of bulk C3N4. Electron paramagnetic resonance (EPR) analysis indicated that ˙O2- was the main reactive oxidizing species during the degradation process.
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Affiliation(s)
- Yan Li
- Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China.
| | - Lei Wang
- Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China.
| | - Yuting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, Jiangxi 330063, China
| | - Guohui Tian
- Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China.
| | - Chungui Tian
- Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China.
| | - Honggang Fu
- Key Laboratory of Functional Inorganic Materials Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, China.
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Deng D, Lamssali M, Aryal N, Ofori-Boadu A, Jha MK, Samuel RE. Textiles wastewater treatment technology: A review. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1805-1810. [PMID: 32790931 DOI: 10.1002/wer.1437] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 08/08/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
The following is a review of published literature on textile wastewater in 2019. Presented are the sections described for the review: concise introduction on the textiles wastewater, followed by a review of present textile treatment technologies organized by physicochemical, biological, and combined processes. Lastly, a discussion of the future topics is presented. PRACTITIONER POINTS: The discharge of textile dye wastewater represents a serious environmental problem and public health concern. Effluents from textile manufacturing, dyeing, and finishing processes contain high-concentration recalcitrant chemicals that are resistant to biodegradation. The textile wastewater needs environmental-friendly and cost-effective combined treatment process.
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Affiliation(s)
- Dongyang Deng
- Department of Built Environment, North Carolina A&T State University, Greensboro, North Carolina, USA
| | - Mehdi Lamssali
- Department of Built Environment, North Carolina A&T State University, Greensboro, North Carolina, USA
| | - Niroj Aryal
- Department of Natural Resources and Environmental Design, North Carolina A&T State University, Greensboro, North Carolina, USA
| | - Andrea Ofori-Boadu
- Department of Built Environment, North Carolina A&T State University, Greensboro, North Carolina, USA
| | - Manoj K Jha
- Department of Civil Architectural and Environmental Engineering, North Carolina A&T State University, Greensboro, North Carolina, USA
| | - Raymond E Samuel
- Department of Biology, Center for Outreach in Alzheimer's Aging and Community Health (COAACH), North Carolina A&T State University, Greensboro, North Carolina, USA
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50
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Kurniawan TA, Mengting Z, Fu D, Yeap SK, Othman MHD, Avtar R, Ouyang T. Functionalizing TiO 2 with graphene oxide for enhancing photocatalytic degradation of methylene blue (MB) in contaminated wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 270:110871. [PMID: 32721315 DOI: 10.1016/j.jenvman.2020.110871] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 04/15/2020] [Accepted: 05/27/2020] [Indexed: 05/22/2023]
Abstract
Methylene blue is a refractory pollutant commonly present in textile wastewater. This study tests the feasibility of TiO2/graphene oxide (GO) composite in enhancing photocatalytic degradation of MB in synthetic wastewater with respect to scientific and engineering aspects. To enhance its removal, we vary the composition of the composite based on the TiO2 weight. Under UV-vis irradiation, the effects of photocatalyst's dose, pH, and reaction time on MB removal by the composites are evaluated under optimum conditions, while any changes in their physico-chemical properties before and after treatment are analyzed by using TEM, SEM, XRD, FTIR and BET. The photodegradation pathways of the target pollutant by the composite and its removal mechanisms are also elaborated. It is found that the same composite with a 1:2 wt ratio of GO/TiO2 has the largest surface area of 104.51 m2/g. Under optimum reactions (0.2 g/L of dose, pH 10, and 5 mg/L of pollutant's concentration), an almost complete MB removal could be attained within 4 h. This result is higher than that of the TiO2 alone (30%) under the same conditions. Since the treated effluents could meet the strict discharge standard limit of ≤0.2 μg/L set by China's regulation, subsequent biological treatments are unnecessary for completing biodegradation of remaining oxidation by-products in the wastewater effluents.
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Affiliation(s)
- Tonni Agustiono Kurniawan
- Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University), Ministry of Education, College of Ecology and the Environment, Xiamen University, Xiamen, Fujian, 361102, PR China; China-ASEAN College of Marine Sciences, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia
| | - Zhu Mengting
- Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University), Ministry of Education, College of Ecology and the Environment, Xiamen University, Xiamen, Fujian, 361102, PR China
| | - Dun Fu
- Key Laboratory of Mine Water Resource Utilization of Anhui Higher Education Institute, School of Resources and Civil Engineering, Suzhou University, Suzhou, 234000, PR China.
| | - Swee Keong Yeap
- China-ASEAN College of Marine Sciences, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia
| | - Mohd Hafiz Dzarfan Othman
- Advanced Membrane Technology Research Centre, School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, Skudai, Johor, Malaysia
| | - Ram Avtar
- Faculty of Environmental Earth Sciences, Hokkaido University, Sapporo, 060-0810, Japan.
| | - Tong Ouyang
- Key Laboratory of the Coastal and Wetland Ecosystems (Xiamen University), Ministry of Education, College of Ecology and the Environment, Xiamen University, Xiamen, Fujian, 361102, PR China
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