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Hwang IS, Mahadik MA, Anushkkaran P, Song MS, Jo YJ, Chae WS, Park JH, Choi SH, Jang JS. In-situ Hf/Zr co-doped Fe 2O 3 nanorod decorated with CuO x/CoO x: Enhanced photocatalytic performance for antibacterial and organic pollutants. CHEMOSPHERE 2024; 360:142450. [PMID: 38801902 DOI: 10.1016/j.chemosphere.2024.142450] [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: 03/20/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
Herein, we successfully synthesized Hf/Zr co-doping on Fe2O3 nanorod photocatalyst by a hydrothermal process and quenching methods. The synergistic roles of Hf and Zr double-doping on the bacteria inactivation test and decomposition of organic pollutants were investigated in detail for the 1 wt% CoOx loaded Hf/Zr-Fe2O3 NRs and CuOx/CoOx loaded Hf/Zr-Fe2O3 NRs photocatalyst. Initially, the rod-like porous morphology of the Hf/Zr-doped Fe2O3 NRs was produced via a hydrothermal method at various Hf co-doping (0, 2, 4, 7 and 10)%. Further, CoOx and CuOx loaded by a wet impregnation approach on the Hf/Zr-Fe2O3 NRs and a highly photoactive Hf(4)/Zr-Fe2O3 [CoOx/CuOx] NRs photocatalyst were developed. After the Hf(4)/Zr-Fe2O3 [CoOx/CuOx] NRs photocatalyst treatment, the Bio-TEM imagery of bacterial cells showed extensive morphological deviations in cell membranes. Hf(4)/Zr-Fe2O3 NR achieved 84.1% orange II degradation upon 3 h illumination, which is higher than that of Hf-Fe2O3 and Zr-Fe2O3 (68.7 and 73.5%, respectively). Additionally, the optimum sample, Hf(4)/Zr-Fe2O3 [CoOx/CuOx] photocatalyst, exhibited 95.5% orange II dye degradation after light radiation for 3 h. Optimized Hf(4)/Zr-Fe2O3 [CoOx/CuOx] catalysts exhibited 99.9% and 99.7% inactivation of E. coli and S. aureus with 120 min, respectively. Further, scavenger experiments revealed that the electrons are the primary responsible species for photocatalytic kinetics. This work will provide a rapid method for the development of high photocatalytic performance materials for bacterial disinfection and organic degradation.
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Affiliation(s)
- In-Seon Hwang
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Mahadeo A Mahadik
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, Republic of Korea; School of Civil and Environmental Engineering, Cornell University, Ithaca, NY, 14853, USA
| | - Periyasamy Anushkkaran
- Department of Integrative Environmental Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Min Seok Song
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - You Jin Jo
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Weon-Sik Chae
- Daegu Center, Korea Basic Science Institute, Daegu, 41566, Republic of Korea
| | - Jung-Hee Park
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Sun Hee Choi
- Pohang Accelerator Laboratory, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
| | - Jum Suk Jang
- Division of Biotechnology, Safety, Environment and Life Science Institute, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, Republic of Korea; Department of Integrative Environmental Biotechnology, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54596, Republic of Korea.
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Zhou Z, Cheng H, Komarneni S, Ma J. MIL-101(Fe)/WS 2 composites activated Na 2S 2O 8 with visible light for removal of tetracycline. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:122393-122404. [PMID: 37968488 DOI: 10.1007/s11356-023-30914-w] [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: 06/08/2023] [Accepted: 11/01/2023] [Indexed: 11/17/2023]
Abstract
MIL-101(Fe)/WS2 catalyst was composited using a solvothermal method. To study the physical and chemical properties of the composite material, a series of characterizations such as scanning electron microscope (SEM), X-ray diffraction (XRD), and catalytic experiments were carried out. The photocatalysis of the prepared catalyst in the degradation of tetracycline was investigated using persulfate (PS, Na2S2O8) as a cocatalyst under visible light illumination. The above system can remove about 80% of tetracycline within 40 min. After three cyclic experiments, the material showed good recycling. According to material characterization and various experimental results, the enhanced performance of the material was attributed to the reduction of the recombination efficiency of photogenerated e- and h+, and activated persulfate to produce a large number of free radicals such as O2•-, SO4•- and 1O2 produced by the active sites provided by the catalyst's high specific surface area.
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Affiliation(s)
- Zhongwei Zhou
- School of Environmental Science and Engineering, Changzhou University, Jiangsu, 213164, China
| | - Hao Cheng
- Guangxi Key Laboratory of Green Processing of Sugar Resources, College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Guangxi, 545006, China
| | - Sridhar Komarneni
- Department of Ecosystem Science and Management and Materials Research Institute, 204 Materials Research Laboratory, The Pennsylvania State University, University Park, PA, 16802, USA.
| | - Jianfeng Ma
- School of Environmental Science and Engineering, Changzhou University, Jiangsu, 213164, China
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Kotwal P, Jasrotia R, Prakash J, Ahmed J, Verma A, Verma R, Kandwal A, Godara SK, Kumari S, Maji PK, Fazil M, Ahmad T, Tamboli MS, Sharma N, Kumar R. Magnetically recoverable sol-gel auto-combustion developed Ni 1-xCu xDy yFe 2-yO 4 magnetic nanoparticles for photocatalytic, electrocatalytic, and antibacterial applications. ENVIRONMENTAL RESEARCH 2023; 231:116103. [PMID: 37178745 DOI: 10.1016/j.envres.2023.116103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/21/2023] [Accepted: 05/10/2023] [Indexed: 05/15/2023]
Abstract
Copper and dysprosium doped NiFe2O4 magnetic nanomaterials, Ni1-xCuxDyyFe2-yO4 (x = y = 0.00, 0.01, 0.02, 0.03), was prepared by utilizing sol-gel auto-combustion approach to inspect the photodegradation of methylene blue (MB) pollutant and also, to perform the electrocatalytic water splitting and antibacterial studies. The XRD analysis reveal the growth of a single-phase spinel cubic structure for produced nanomaterials. The magnetic traits show an increasing trend in saturation magnetization (Ms) from 40.71 to 47.90 emu/g along with a decreasing behaviour of coercivity from 158.09 to 142.31 Oe at lower and higher Cu and Dy doping content (x = 0.0-0.01). The study of optical band gap values of copper and dysprosium-doped nickel nanomaterials decreased from 1.71 to 1.52 eV. This will increase the photocatalytic degradation of methylene blue pollutant from 88.57% to 93.67% under natural sunlight, respectively. These findings clearly show that under natural sunlight irradiation for 60 min, the produced N4 photocatalyst displays the greatest photocatalytic activity with a maximum removal percentage of 93.67%. The electrocatalytic characteristics of produced magnetic nanomaterials for both HER and OER were examined with a Calomel electrode taking as a reference in a 0.5 N H2SO4 and 0.1 N KOH electrolyte. The N4 electrode demonstrated considerable 10 and 0.024 mA/cm2 of current density, with onset potentials of 0.99 and 1.5 V for HER and OER and also, have tafel slopes of 58.04 and 295 mV/dec, respectively. The antibacterial activity for produced magnetic nanomaterials was examined against various bacteria (Bacillus subtilis, Staphylococcus aureus, S. typhi, and P. aeruginosa) in which N3 sample produced significant inhibition zone against gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus) but no zone of inhibition against gram-negative bacteria (S. typhi and P. aeruginosa). With all these superior traits, the produced magnetic nanomaterials are highly valuable for the wastewater remediation, hydrogen evolution, and biological applications.
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Affiliation(s)
- Pinki Kotwal
- School of Physics and Materials Science, Shoolini University, Bajhol, Solan, H.P., India
| | - Rohit Jasrotia
- School of Physics and Materials Science, Shoolini University, Bajhol, Solan, H.P., India; Himalayan Centre of Excellence in Nanotechnology, Shoolini University, Bajhol, Solan, H.P., India.
| | - Jyoti Prakash
- School of Physics and Materials Science, Shoolini University, Bajhol, Solan, H.P., India
| | - Jahangeer Ahmed
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ankit Verma
- Faculty of Science and Technology, ICFAI University, Baddi, H.P., India
| | - Ritesh Verma
- Department of Physics, Amity University, Haryana, 122413, Gurugram, India
| | - Abhishek Kandwal
- School of Physics and Materials Science, Shoolini University, Bajhol, Solan, H.P., India
| | - Sachin Kumar Godara
- Department of Apparel and Textile Technology, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Swati Kumari
- Department of Biotechnology, Shoolini University, Bajhol, Solan, H.P., India
| | - Pradip K Maji
- Dept. of Polymer & Process Engineering, Indian Institute of Technology Roorkee, Saharanpur, Uttar Pradesh, 247001, India
| | - Mohd Fazil
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India
| | - Tokeer Ahmad
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India
| | - Mohaseen S Tamboli
- Korea Institute of Energy Technology (KENTECH), 200 Hyeokshin-ro, Naju, Jeollanam-do, 58330, Republic of Korea
| | - Naresh Sharma
- Govt. Degree College for Women, Kathua, J & K, India
| | - Rajesh Kumar
- Department of Physics, Faculty of Physical Sciences, Sardar Patel University, Mandi, HP, 175001, India.
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Fan X, Zhang W, Liu Y, Shi S, Cui Y, Zhao Z, Hou J. Hydrothermal synthesis of sewage sludge biochar for activation of persulfate for antibiotic removal: Efficiency, stability and mechanism. ENVIRONMENTAL RESEARCH 2023; 218:114937. [PMID: 36435489 DOI: 10.1016/j.envres.2022.114937] [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: 09/22/2022] [Revised: 10/29/2022] [Accepted: 11/22/2022] [Indexed: 06/16/2023]
Abstract
The use of biochar materials as catalysts to activate persulfate (PS) for the degradation of antibiotics has attracted much attention. In this study, a carbonaceous material (Cu/Zn-SBC) was prepared from sewage sludge by hydrothermal modification. The efficiency of PS activation by Cu/Zn-SBC was investigated using tetracycline (TC) as the model antibiotic. In the Cu/Zn-SBC + PS system, the TC removal rate reached 90.13% at 10 min and exceeded 99% within 4 h. This not only met the requirement of removing large amounts of pollutants in a short time but also achieved the complete removal of pollutants in the subsequent time. Additionally, the Cu/Zn-SBC + PS system was found to be dominated by radical and nonradical pathways. Cu, hydroxyl and carboxyl groups on the surface of Cu/Zn-SBC promoted the production of free radicals and non-free radicals. Under several changes in reaction conditions and water environment factors, the TC removal rate remained above 85% within 10 min. Furthermore, the removal rate of TC was still 85.79% when Cu/Zn-SBC combined with PS was reused twice and 77.14% when reused four times. This study provides an ideal solution for the treatment of sewage sludge, and offers a stable and efficient material for removing antibiotics from wastewater.
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Affiliation(s)
- Xiulei Fan
- School of Environmental Engineering, Xuzhou University of Technology, Xuzhou, 221018, China; College of Environment, Hohai University, Nanjing, 210098, China; Suzhou Litree Ultra-Filtration Membrane Technology Co., Ltd., Suzhou, 215000, China.
| | - Weiliang Zhang
- School of Environmental Engineering, Xuzhou University of Technology, Xuzhou, 221018, China
| | - Yiming Liu
- School of Environmental Engineering, Xuzhou University of Technology, Xuzhou, 221018, China
| | - Shang Shi
- School of Environmental Engineering, Xuzhou University of Technology, Xuzhou, 221018, China
| | - Yue Cui
- School of Environmental Engineering, Xuzhou University of Technology, Xuzhou, 221018, China
| | - Ziyu Zhao
- School of Environmental Engineering, Xuzhou University of Technology, Xuzhou, 221018, China
| | - Jun Hou
- College of Environment, Hohai University, Nanjing, 210098, China
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