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Xia Z, Wang L, Tan W, Yuan L, He X, Wang J, Chen L, Zeng S, Lu S, Jiao Z. Visible-Light Photocatalytic Degradation Efficiency of Tetracycline and Rhodamine B Using a Double Z-Scheme Heterojunction Catalyst of UiO-66-NH 2/BiOCl/Bi 2S 3. Inorg Chem 2024; 63:14578-14590. [PMID: 39028930 DOI: 10.1021/acs.inorgchem.4c01917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
BiOCl is a promising photocatalyst, but due to its weak visible light absorption capacity and low photogenerated electron-hole pair separation rate, its practical application is limited to a certain extent. In this study, a novel double Z-scheme heterojunction UiO-66-NH2/BiOCl/Bi2S3 catalyst was constructed to broaden the visible light response range and promote high photogenerated hole-electron separation of BiOCl. Its photocatalytic performance is evaluated by dissociating tetracycline (TC) and rhodamine B (RhB) in visible light. The optimal proportion of UiO-66-NH2/BiOCl/Bi2S3 hybrids exhibits the best degradation efficiency of visible light illumination (∼93% in 120 min for TC and ∼98% in 60 min for RhB). The synergistic effect of a large visible light response range and the Z-scheme charge transfer mechanism ensure the excellent visible photocatalytic activity of UiO-66-NH2/BiOCl/Bi2S3. It is proven that h+ and •O2- are the main active substances in the photocatalysis process by active substance capture experiments and electron spin resonance tests. The intermediates and degradation processes are analyzed by high-performance liquid chromatography-mass spectrometry. This study proves that the new UiO-66-NH2/BiOCl/Bi2S3 photocatalyst has great application potential in the field of water pollution degradation and will provide a new idea for the optimization of BiOCl.
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Affiliation(s)
- Zijie Xia
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
| | - Linlin Wang
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Wenqi Tan
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Linying Yuan
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Xinhua He
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, P. R. China
| | - Juan Wang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Luyang Chen
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Suyuan Zeng
- Department of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P. R. China
| | - Shigang Lu
- Institute for Sustainable Energy/College of Science, Shanghai University, 99 Shangda Road, Shanghai 200444, PR China
| | - Zheng Jiao
- Shanghai Applied Radiation Institute, Shanghai University, Shanghai 201800, P. R. China
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Zhang M, Zhang H, Zhou Y, Yin H, Yu Z, Zhang X, Ai S, Wang M. Enzymatically Mediated In Situ Generation of Z-Scheme Bi 2S 3/Bi 2MoO 6 Heterojunction-Based Organic Photoelectrochemical Transistor for METTL3/METTL14 Detection. Anal Chem 2024. [PMID: 39072614 DOI: 10.1021/acs.analchem.4c01610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
The OPECT biosensing platform, which connects optoelectronics and biological systems, offers significant amplification and more possibilities for research in biological applications. In this work, a homogeneous organic photoelectrochemical transistor (OPECT) biosensor based on a Bi2S3/Bi2MoO6 heterojunction was constructed to detect METTL3/METTL14 protein activity. The METTL3/METTL14 complex enzyme was used to catalyze adenine (A) on an RNA strand to m6A, protecting m6A-RNA from being cleaved by an E. coli toxin (MazF). Alkaline phosphatase (ALP) catalyzed the conversion of Na3SPO3 to H2S through an enzymatic reaction. Due to the adoption of the strategy of no fixation on the electrode, the generated H2S was easy to diffuse to the surface of the ITO electrode. The Bi2S3/Bi2MoO6 heterojunction was formed in situ through a chemical replacement reaction with Bi2MoO6, improving photoelectric conversion efficiency and realizing signal amplification. Based on this "signal on" mode, METTL3/METTL14 exhibited a wide linear range (0.00001-25 ng/μL) between protein concentration and photocurrent intensity with a limit of detection (LOD) of 7.8 fg/μL under optimal experimental conditions. The applicability of the developed method was evaluated by investigating the effect of four plasticizers on the activity of the METTL3/METTL14 protein, and the molecular modeling technique was employed to investigate the interaction between plasticizers and the protein.
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Affiliation(s)
- Miao Zhang
- College of Chemistry and Material Science, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Haowei Zhang
- College of Chemistry and Material Science, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yunlei Zhou
- College of Chemistry and Material Science, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Huanshun Yin
- College of Chemistry and Material Science, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Zhengkun Yu
- College of Chemistry and Material Science, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xinyue Zhang
- College of Chemistry and Material Science, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Shiyun Ai
- College of Chemistry and Material Science, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Minghui Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Science, Nanjing Forestry University, Nanjing 210037, PR China
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V V, K J, Alsawalha M, Zhang Z, Fu ML, Yuan B. Rational design of full-spectrum visible-light-responsive bimetallic sulfide Bi 2S 3/CoS 2 composites for high-efficiency photocatalytic degradation of naproxen and bacterial inactivation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 348:119246. [PMID: 37820430 DOI: 10.1016/j.jenvman.2023.119246] [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: 05/13/2023] [Revised: 09/16/2023] [Accepted: 10/02/2023] [Indexed: 10/13/2023]
Abstract
Photocatalytic water decontamination has emerged as a highly promising technology for efficient and rapid water treatment, harnessing sustainable solar energy as its driving force. In this study, we prepared visible-light active Bi2S3/CoS2 composites for the degradation of naproxen (NPX) and the inactivation of Escherichia coli (E. coli). The homogeneous dispersion of CoS2 was stably integrated with Bi2S3, resulting in a significant enhancement of the specific surface area, efficient utilization of visible light, and effective separation of photogenerated charge carriers. Consequently, this synergistic photocatalytic system greatly facilitated the successful degradation of NPX and the inactivation of E. coli under visible-light irradiation. Compared to the pure Bi2S3 and CoS2 catalysts, the Bi2S3/CoS2 (1:2) composites displayed significantly enhanced photodegradation activity, achieving 96.46% (k = 0.2847 min-1) degradation of NPX within 90 min and maintaining good recyclability with no significant decline after six successive cycles. Additionally, the photocatalytic inactivation of E. coli results indicated that Bi2S3/CoS2 composites exhibited excellent performance, leading to the inactivation of 7 log10 cfu mL-1 of bacterial cells after 150 min of visible-light exposure. Scanning Electron Microscopy (SEM) and K+ ions leakage tests demonstrated that the destruction of the E. coli cell membrane structure resulted in cell death. The outcomes of this work suggest that Bi2S3/CoS2 composites hold significant potential for treating water contaminated with antibiotic and microbial pollutants.
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Affiliation(s)
- Vasanthakumar V
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Jothimani K
- Department of Biotechnology, Vinayaka Mission's Kirupananda Variyar Engineering College, Vinayaka Mission's Research Foundation, Salem, 636 308, Tamil Nadu, India
| | - Murad Alsawalha
- Department of Chemical Engineering, Industrial Chemistry Division, Jubail Industrial College, P.O. Box 10099, Jubail, 31961, Saudi Arabia
| | - Zhiyong Zhang
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China; Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun, 130118, PR China
| | - Ming-Lai Fu
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China.
| | - Baoling Yuan
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China; Key Laboratory of Songliao Aquatic Environment, Ministry of Education, Jilin Jianzhu University, Changchun, 130118, PR China.
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Li S, Hasan N, Zhang F, Bae JS, Liu C. 2D Bi 2MoO 6/Zn 3V 2O 8 heterojunction photocatalyst for efficient photocatalytic reduction of CO 2 to CO and CH 4. J Colloid Interface Sci 2023; 652:1533-1544. [PMID: 37660610 DOI: 10.1016/j.jcis.2023.08.189] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 08/20/2023] [Accepted: 08/29/2023] [Indexed: 09/05/2023]
Abstract
Two-dimensional (2D) "face-to-face" heterojunctions promote interfacial charge transfer and separation in composite photocatalysts. Here, we report an efficient 2D/2D step-scheme (S-scheme) photocatalyst composed of Bi2MoO6/Zn3V2O8 (BMO/ZVO), which has been designed and prepared via the self-assembly of BMO and ZVO nanoflakes. The heterojunction with an optimized composition of 30% BMO/ZVO showed extended light absorption capacity and enhanced separation efficiency of photogenerated carriers. Density functional theory (DFT) calculation on work function and charge density revealed the presence of a built-in electric field at the interface region, which should facilitate the separation of photogenerated electron-hole pairs. This work showed that it is essential to select two photocatalysts with interlaced band arrangement and to fine-tune the heterojunction interface for the preparation of S-scheme heterojunctions to achieve high photocatalytic efficiency.
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Affiliation(s)
- Shiping Li
- Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 17035, Republic of Korea
| | - Najmul Hasan
- Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 17035, Republic of Korea
| | - Fuchun Zhang
- College of Physics and Electronic Information, Yan'an University, Yan'an 716000, People's Republic of China
| | - Jong-Seong Bae
- Busan Center, Korea Basic Science Institute, Busan 46742, Republic of Korea
| | - Chunli Liu
- Department of Physics and Oxide Research Center, Hankuk University of Foreign Studies, Yongin 17035, Republic of Korea.
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Ding J, Li C, Yin H, Zhou Y, Wang S, Liu K, Li M, Wang J. One-pot solvothermal synthesis of Bi/Bi 2S 3/Bi 2WO 6 S-scheme heterojunction with enhanced photoactivity towards antibiotic oxytetracycline degradation under visible light. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121550. [PMID: 37019263 DOI: 10.1016/j.envpol.2023.121550] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/17/2023] [Accepted: 04/01/2023] [Indexed: 06/19/2023]
Abstract
A novel noble-metal-free ternary Bi/Bi2S3/Bi2WO6 S-scheme heterojunction and Schottky junction was successfully synthesized by one-pot solvothermal method. UV-Vis spectroscopy showed improved light absorption in the ternary composite structure. Electrochemical impedance spectroscopy and photoluminescence spectroscopy confirmed the reduced interfacial resistivity and photogenerated charge recombination rate of the composites. Using oxytetracycline (OTC) as model pollutant, Bi/Bi2S3/Bi2WO6 presented high photocatalytic activity towards OTC degradation, where the removal rate of Bi/Bi2S3/Bi2WO6 was 1.3 and 4.1 times higher than that of Bi2WO6 and Bi2S3 under visible light irradiation in 15 min, respectively. The excellent visible photocatalysis activity was attributed to the SPR effect of metal Bi and the direct S-scheme heterojunction of Bi2S3 and Bi2WO6 with the matched energy band structure, which led to the increased electron transfer rate and high separation efficiency of the photogenerated election-hole pairs. After seven cycles, the degradation efficiency for 30 ppm OTC with Bi/Bi2S3/Bi2WO6 only decreased 20.4%. In the degradation solution, the composite photocatalyst leached only 16 ng/L Bi and 26 ng/L W of metal with high photocatalytic stability. Moreover, free radical quenching experiment and electron spin-resonance spectroscopy experiment revealed that ·O2-, 1O2, h+ and ·OH played crucial roles in the photocatalytic degradation of OTC. Based on the analysis of high performance liquid chromatography-mass spectrometry for the intermediates in the degradation process, the degradation pathway was provided. Finally, combined with ecotoxicological effect analysis, the decreased toxicity of OTC after degradation towards rice seedlings was confirmed.
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Affiliation(s)
- Jia Ding
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agricultural University, 271018, Tai'an, Shandong, PR China; College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, 271018, Tai'an, Shandong, PR China
| | - Conghui Li
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, 271018, Tai'an, Shandong, PR China; Ganjiang Innovation Academy, Chinese Academy of Sciences, 341000, Ganzhou, Jiangxi, PR China; School of Rare Earths, University of Science and Technology of China, 230026, Hefei, Anhui, PR China
| | - Huanshun Yin
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, 271018, Tai'an, Shandong, PR China
| | - Yunlei Zhou
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, 271018, Tai'an, Shandong, PR China
| | - Suo Wang
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Food Safety Analysis and Test Engineering Technology Research Center of Shandong Province, Shandong Agricultural University, 271018, Tai'an, Shandong, PR China
| | - Kexue Liu
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agricultural University, 271018, Tai'an, Shandong, PR China
| | - Min'an Li
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agricultural University, 271018, Tai'an, Shandong, PR China
| | - Jun Wang
- College of Resources and Environment, Key Laboratory of Agricultural Environment in Universities of Shandong, Shandong Agricultural University, 271018, Tai'an, Shandong, PR China.
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6
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Zhu Y, Shi W, Gao H, Li C, Liang W, Nie Y, Shen C, Ai S. A novel aminated lignin/geopolymer supported with Fe nanoparticles for removing Cr(VI) and naphthalene: Intermediates promoting the reduction of Cr(VI). THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 866:161379. [PMID: 36621477 DOI: 10.1016/j.scitotenv.2022.161379] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 12/19/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
A novel, inexpensive and eco-friendly aminated lignin/geopolymer supported with Fe nanoparticles (Fe@N-L-GM) composite was successfully synthesized using kaolin and lignin as the major precursors. The prepared Fe@N-L-GM had larger specific surface area, rich oxygen-containing and nitrogen-containing functional groups, greater electron transfer ability and interconnective porous structure. The Fe@N-L-GM could be employed as the adsorbent of Cr(VI) and the activator of potassium peroxymonosulfate (PMS) for treatment of Cr(VI) and naphthalene (NAP) in wastewater. The adsorption and degradation results indicated that the maximum adsorption capacity of Cr(VI) could reach 65.83 mg g-1, whereas the maximum NAP degradation efficiency could reach 97.81 %. The adsorbed Cr(VI) was mostly converted to the low toxic Cr(III) through the reduction of electron donors such as Fe(II), amino and hydroxyl groups. The quenching experiment results confirmed that ·OH might be the crucial ROSs in mediating NAP degradation. In the simultaneous removal experiment of Cr(VI) and NAP, the Cr(VI) removal rate was significantly improved in the presence of NAP, while phenol as the degradation intermediate of NAP might be the main substance for promoting the reduction of Cr(VI). This work provided the theoretical foundation and a new type of material for the simultaneous removal of heavy metal and persistent organic pollutants (POPs).
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Affiliation(s)
- Yifan Zhu
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Weijie Shi
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Taian 271018, Shandong, PR China.
| | - Hu Gao
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Changyu Li
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Wenxu Liang
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Yongxin Nie
- College of Life Sciences, Shandong Agricultural University, Taian 271018, Shandong, PR China.
| | - Cong Shen
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Taian 271018, Shandong, PR China
| | - Shiyun Ai
- College of Chemistry and Material Science, Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, Shandong Agricultural University, Taian 271018, Shandong, PR China.
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7
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Kong Y, Huang Z, Chu H, Ma Y, Ma J, Nie Y, Ding L, Chen Z, Shen J. Enhanced removal of aqueous Cr(VI) by the in situ iron loaded activated carbon through a facile impregnation with Fe(II) and Fe(VI) two step method: Mechanism study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:38480-38499. [PMID: 36577825 DOI: 10.1007/s11356-022-24876-8] [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: 08/11/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
In this study, a novel in situ iron-loaded activated carbon (AFPAC) was prepared by a FeSO4/K2FeO4 impregnation and oxidation combination two-step supported on activated carbon for enhanced removal of Cr(VI) from aqueous solutions. Cr(VI) removal efficiency greatly increased by AFPAC more than 70% than that of fresh activated carbon (AC), which is due to rich iron oxides formed in situ and the synergistic effect between iron oxides and activated carbon. Cr(VI) adsorption behaviors on AFPAC under different water quality parameters were investigated. The maximum monolayer adsorption capacities for Cr(VI) by AFPAC are as high as 26.24 mg/g, 28.65 mg/g, and 32.05 mg/g at 25 °C, 35 °C and 45 °C at pH 4, respectively. Density functional theory (DFT) results showed that the adsorption energy of K2Cr2O7 on the surface of FeOOH was - 2.52 eV, which was greater than that on the surface of bare AC, and more charge transfer occurred during the adsorption of K2Cr2O7 on the surface of FeOOH, greatly promoting the formation of Cr = O-Fe. Cr(VI) removal by AFPAC included electrostatic attraction, redox reaction, coordinate complexation, and co-precipitation. Cr(VI) adsorption process on AFPAC consisted of the three reaction steps: (1) AFPAC was fast protonation and Cr2O72- would electrostatically attract to the positively charged AFPAC surface. (2) Cr2O72- was reduced into Cr2O3 by the carbons bond to the oxygen functionalities on activated carbon and the redox reaction process of FeSO4 and K2FeO4. (3) The inner-sphere complexes were formed, and adsorbed on AFPAC by iron oxides and then co-precipitation.
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Affiliation(s)
- Yanli Kong
- School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan, 243002, Anhui, China
- Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, Maanshan, 243002, Anhui, China
| | - Zhiyan Huang
- School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan, 243002, Anhui, China
- Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, Maanshan, 243002, Anhui, China
| | - Hangyu Chu
- School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan, 243002, Anhui, China
- Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, Maanshan, 243002, Anhui, China
| | - Yaqian Ma
- School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan, 243002, Anhui, China
| | - Jiangya Ma
- School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan, 243002, Anhui, China.
- Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, Maanshan, 243002, Anhui, China.
| | - Yong Nie
- School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan, 243002, Anhui, China
- Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, Maanshan, 243002, Anhui, China
| | - Lei Ding
- School of Civil Engineering and Architecture, Anhui University of Technology, Maanshan, 243002, Anhui, China
- Engineering Research Center of Biomembrane Water Purification and Utilization Technology, Ministry of Education, Maanshan, 243002, Anhui, China
| | - Zhonglin Chen
- State Key Laboratory of Urban Water Resources and Environment, School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China
| | - Jimin Shen
- State Key Laboratory of Urban Water Resources and Environment, School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China
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Du H, Ma X, Li N, Yang L, Yang G, Li Q, Wang Q. Exceptional visible-light photoelectrocatalytic activity of dual Z-scheme Bi@BiOI-Bi 2O 3/C 3N 4 heterojunction for simultaneous remediation of Cr(VI) and phenol. J Colloid Interface Sci 2023; 640:132-143. [PMID: 36842419 DOI: 10.1016/j.jcis.2023.02.106] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/11/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023]
Abstract
Developing highly efficient and stable photocatalysts remains a major challenge for the remediation of environmental pollutants. In this work, the Bi0 decorated BiOI-Bi2O3/C3N4 heterojunction (Bi@BiOI-Bi2O3/C3N4) film was fabricated through ultrasonic stripping, I- etching and in situ UV-reduction processes and then characterized thoroughly by various analytical techniques. The characteristics of simultaneous mitigation of phenol and Cr(VI) were evaluated over Bi@BiOI-Bi2O3/C3N4 photoanode under visible light. The results exhibited that both phenol and Cr(VI) were removed completely by the photoanode at 2.5 V within 1.5 h, superior to our previous report. The synergy of the surface plasmon resonance (SPR) effect of Bi0 and ternary heterojunction accelerated the separation and transfer of photo-induced charge carrier and thus heavily promoted the removal efficiency. Moreover, the excellent stability of this photoanode was hold with no considerably activity attenuation after 4 cycles. Finally, a dual Z-scheme charge transfer process was presented. This work offers an attractive pathway to construct highly active photoelectrode with promising application for simultaneous remediation of organics and heavy metals in wastewater.
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Affiliation(s)
- Hao Du
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Xin Ma
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Ningyi Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Lingxuan Yang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Guoxiang Yang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qiang Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qi Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou 310018, China.
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9
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Synthesis of Rape Pollen-Fe2O3 Biohybrid Catalyst and Its Application on Photocatalytic Degradation and Antibacterial Properties. Catalysts 2023. [DOI: 10.3390/catal13020358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The efficient biohybrid photocatalysts were prepared with different weight ratios of Fe2O3 and treated rape pollen (TRP). The synthesized samples were characterized by different analytical techniques. The results showed that carbonized rape pollen had a three-dimensional skeleton and granular Fe2O3 uniformly covered the surface of TRP. The Fe2O3/TRP samples were used for degradation of Methylene Blue (MB) and Escherichia Coli (E. coli) disinfection in water under visible light. The degradation of MB and inactivation of E. coli was achieved to 93.7% in 300 min and 99.14% in 100 min, respectively. We also explored the mechanism during the reaction process, where reactive oxygen species (ROS) including hydroxyl radicals and superoxide radicals play a major role throughout the reaction process. This work provides new ideas for the preparation of high-performance photocatalysts by combining semiconductors with earth-abundant biomaterials.
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10
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Park S, Kim S, Yea Y, Saravanakumar K, Lee E, Yoon Y, Park CM. Adsorptive and photocatalytic performance of cobalt-doped ZnTiO 3/Ti 3C 2T x MXene nanohybrids towards tetracycline: Kinetics and mechanistic insight. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130165. [PMID: 36272372 DOI: 10.1016/j.jhazmat.2022.130165] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 09/18/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
Tetracycline (TC) antibiotics are widely used in animal husbandry and can cause environmental risk due to its high ecological toxicity and persistence. In this study, cobalt doped/ZnTiO3 (ZTO)/Ti3C2Tx MXene (ZCxTM, x indicates wt% of Co loading) was synthesized and explored to remove TC by adsorption and photocatalysis under visible light irradiation. The as-prepared ZC5TM was characterized using various analytical techniques, and key operating parameters such as solution pH, background ions, and temperature were systematically investigated. Interestingly, ZC5TM (14.9 mg/g) showed excellent adsorption capacity for TC, which was higher than activated carbon (7.7 mg/g), ZTO (4.9 mg/g), ZC3T (5.2 mg/g), ZC5T (5.3 mg/g), MXene (12.1 mg/g), ZTOM (12.5 mg/g), and ZC3TM (12.9 mg/g). The pseudo-second-order kinetics and Langmuir isotherm models well explained the effect of contact time and initial concentrations on the adsorption of TC. The adsorption process was primarily through the electrostatic attraction, surface complexation, and hydrogen bonding. In addition, MXene and Co doped on ZTO served as co-catalyst and reduced recombination rate of photo-generated e--h+ pairs by the intimate interface of its heterojunction. Thus, ZC5TM was highly effective for the photocatalytic degradation of residual TC after adsorption by showing 18% TC degradation rate, compared to 8% and 9% degradation rate for ZTO and MXene, respectively. There results finally support the feasible use of ZC5TM as efficient adsorbent and photocatalyst in removal of TC in wastewater.
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Affiliation(s)
- Soyoung Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Sewoon Kim
- Department of Civil and Environmental Engineering, University of Iowa, 4105 Seamans Center, Iowa, IA 52242, USA.
| | - Yeonji Yea
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Karunamoorthy Saravanakumar
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Eunji Lee
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, USA; Department of Environmental Science and Engineering, Ewha Womans University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea.
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea.
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11
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Velumani M, Jeyadharmarajan J. Conversion of novel tannery sludge-derived biochar/TiO 2 nanocomposite for efficient removal of Cr (VI) under UV light: photocatalytic performance and mechanism insight. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:28173-28191. [PMID: 36401003 DOI: 10.1007/s11356-022-24124-z] [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: 07/22/2022] [Accepted: 11/05/2022] [Indexed: 06/16/2023]
Abstract
An investigation on the reduction of Cr (VI) pollutant from tannery effluents using TiO2, SB/TiO2, and c-SB/TiO2 nano photocatalysts was presented in this study. For the preparation of Biochar-based TiO2 photocatalyst (SB/TiO2), tannery sludge was utilized as a precursor. Hydrothermal pre-treatment was adopted to prepare chemically activated SB/TiO2 and SB/TiO2 nanocomposites. The morphology, crystal structure, optical properties, and elemental composition of the prepared catalysts were analyzed by XRD, FT-IR, SEM-EDX, BET analysis, ZPC, PL, TGA, and Raman spectroscopy. The band gap analysis of Photocatalyst was measured using a DRS instrument, and band gap energy of 3.39 eV was obtained for c-SB/TiO2 photocatalyst. The developed c-SB/TiO2 catalyst exhibits a larger specific surface area of 646.85 m2/g than TiO2 and SB/TiO2 (74.58 m2/g and 573.74 m2/g), respectively. The enhanced photocatalytic activity for the pollutant removal was achieved by the photocatalyst due to their wide band gap and effective charge separation. The kinetic rate constant was achieved in the pseudo-first-order model, which fits well for the reduction of Cr (VI). Furthermore, at the optimal conditions of 10 mg/L contaminant concentration, pH 2, and 0.5 g/L catalyst dosage, 98.56% reduction was observed after 180 min of reaction. The OH acts as a major removal pathway for Cr (VI) contaminants with more than 50% reduction in COD. This study proves that c-SB/TiO2 photocatalysts can remove toxic contaminants under UV light irradiation with good recycling performance up to 5 times.
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Affiliation(s)
- Mohanapriya Velumani
- Department of Civil Engineering, Government College of Technology, 641013, Coimbatore, India
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12
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Xiao Y, Tao Y, Jiang Y, Wang J, Zhang W, Liu Y, Zhang J, Wu X, Liu Z. Construction of core–shell CeO2 nanorods/SnIn4S8 nanosheets heterojunction with rapid spatial electronic migration for effective wastewater purification and H2O2 production. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122385] [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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13
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Zeng Z, Deng Z, Wang T, Huang H, Guo Y. Environmentally friendly synthesis of S-scheme heterojunction UiO-66-NH2/Bi7O9I3 for promoted degradation of ciprofloxacin under visible light: DFT calculation, degradation mechanism and toxicity evaluation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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14
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Liang C, Ma J, Cao Y, Zhang T, Yang C, Wu Y, Li H, Xu H, Hua Y, Wang C. Adsorption of BiOBr microspheres to rhodamine B and its influence on photocatalytic reaction. CHEMOSPHERE 2022; 304:135320. [PMID: 35697103 DOI: 10.1016/j.chemosphere.2022.135320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/23/2022] [Accepted: 06/09/2022] [Indexed: 06/15/2023]
Abstract
Adsorption and its influence are often neglected during photocatalytic degradation of organic pollutants. To call attention to these issues, a novel bismuth oxybromide (BiOBr) microsphere with hierarchical flower-like structure was fabricated through a facile hydrothermal process using polyvinyl pyrrolidone (PVP) as additive in this work, and then the adsorption of the BiOBr microspheres to RhB and its influence on the photocatalytic degradation of RhB were investigated in detail. Experimental results show that the BiOBr microspheres have a very strong adsorption capacity to RhB. The adsorption behavior follows the Langmuir model and the quasi second order kinetic equation. Tests of the photocatalytic degradation of RhB under visible irradiation verify that the adsorption of the BiOBr microspheres to RhB greatly boosts the degradation of RhB due to the "enriching effect", and a complete degradation of 20 mg L-1 RhB only requires 37 min.
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Affiliation(s)
- Congjie Liang
- School of Chemistry and Chemical Engineering of Hainan Normal University, Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou City, Haikou, 571158, PR China
| | - Jian Ma
- School of Chemistry and Chemical Engineering of Hainan Normal University, Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou City, Haikou, 571158, PR China
| | - Yixi Cao
- School of Chemistry and Chemical Engineering of Hainan Normal University, Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou City, Haikou, 571158, PR China
| | - Taisong Zhang
- School of Chemistry and Chemical Engineering of Hainan Normal University, Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou City, Haikou, 571158, PR China
| | - Chanyu Yang
- School of Chemistry and Chemical Engineering of Hainan Normal University, Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou City, Haikou, 571158, PR China
| | - Yingfeng Wu
- School of Chemistry and Chemical Engineering of Hainan Normal University, Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou City, Haikou, 571158, PR China
| | - Huaming Li
- Institute for Energy Research, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Hui Xu
- Institute for Energy Research, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, PR China
| | - Yingjie Hua
- School of Chemistry and Chemical Engineering of Hainan Normal University, Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou City, Haikou, 571158, PR China.
| | - Chongtai Wang
- School of Chemistry and Chemical Engineering of Hainan Normal University, Key Laboratory of Electrochemical Energy Storage and Energy Conversion of Hainan Province, Key Laboratory of Electrochemical Energy Storage and Light Energy Conversion Materials of Haikou City, Haikou, 571158, PR China.
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15
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Xing J, Li J, Yang F, Fu Y, Huang J, Bai Y, Bai B. Cyclic enrichment of chromium based on valence state transformation in metal-free photocatalytic reductive imprinted composite hydrogel. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 839:156367. [PMID: 35654194 DOI: 10.1016/j.scitotenv.2022.156367] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/22/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
Cr (VI) exists in anion form and can be reduced to positive charged Cr (III) under certain conditions. Can positive charged Cr (III) be continually used for absorbing Cr (VI) to achieve cyclic accumulation of chromium? In this paper, an ion imprinting material for adsorption of Cr (VI) was prepared by dispersing polypyrrole (PPy) in a gelatin/chitosan (Gel/CS) hydrogel network, named Gel/CS/PPy. Based on the conversion of Cr (VI) to Cr (III), a cyclic enrichment process including adsorption-photoreduction-fixation-readsorption of Cr (VI) was established in Gel/CS/PPy hydrogel. The composition and structure of the Gel/CS/PPy were analyzed by scanning electron microscopy (SEM), Fourier transform-infrared spectroscopy (FT-IR), thermogravimetric (TGA), texture analyzer (Universal TA), zeta potential and ultraviolet-visible-near infrared spectra (UV-vis-NIR). The conversion of Cr (VI) and Cr (III) and its promoting effect on readsorption were verified by XPS. The results showed that Gel/CS/PPy has good adsorption capacity for Cr (VI) and excellent photocatalytic ability to reduce Cr (VI) to Cr (III). Cr (III)-loaded Gel/CS/PPy can be further used to adsorb Cr (VI) and showed good adsorption efficiency even after four cycles. The optimal operating condition for Cr (VI) adsorption is pH = 3; 2 g/L dose of Gel/CS/PPy; and the adsorption capacity of Cr (VI) was about 106.8 mg/g after six adsorption cycles. Since Gel/CS/PPy is composed of organic components, high purity chromium can be recovered by simple calcination method later. Therefore, the synthesized Gel/CS/PPy has great potential in the practical application of low concentration Cr (VI) treatment in water.
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Affiliation(s)
- Jianyu Xing
- School of Water and Environment, Chang'an University, Xi'an, Shaanxi 710054, PR China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Xi'an 710054, China.
| | - Jingchang Li
- School of Water and Environment, Chang'an University, Xi'an, Shaanxi 710054, PR China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Xi'an 710054, China
| | - Feiying Yang
- SINO Shaanxi Nuclear Industry Comprehensive Analysis Testing CO., LTD., Xi'an, Shaanxi 710024, PR China
| | - Yan Fu
- SINO Shaanxi Nuclear Industry Comprehensive Analysis Testing CO., LTD., Xi'an, Shaanxi 710024, PR China
| | - Jumei Huang
- School of Water and Environment, Chang'an University, Xi'an, Shaanxi 710054, PR China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Xi'an 710054, China
| | - Yuehao Bai
- School of Water and Environment, Chang'an University, Xi'an, Shaanxi 710054, PR China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Xi'an 710054, China
| | - Bo Bai
- School of Water and Environment, Chang'an University, Xi'an, Shaanxi 710054, PR China; Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, Xi'an 710054, China
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16
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Lin Z, Yang Z, Huang J. Hierarchical Bi 2WO 6/TiO 2-nanotube composites derived from natural cellulose for visible-light photocatalytic treatment of pollutants. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:745-762. [PMID: 35975179 PMCID: PMC9359189 DOI: 10.3762/bjnano.13.66] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/21/2022] [Indexed: 06/13/2023]
Abstract
A series of Bi2WO6/TiO2-nanotube (Bi2WO6/TiO2-NT) heterostructured composites were prepared by utilizing natural cellulose (e.g., laboratory filter paper) as the structural template. The obtained nanoarchitectonics, namely Bi2WO6/TiO2-NT nanocomposites, displayed three-dimensionally interwoven structures which replicated the initial cellulose template. The composite Bi2WO6/TiO2-NT nanotubes were formed by TiO2 nanotubes that uniformly anchored with Bi2WO6 nanoparticles of various densities on the surface. The composites exhibited improved photocatalytic activities toward the reduction of Cr(VI) and degradation of rhodamine B under visible light (λ > 420 nm), which were attributed to the uniform anchoring of Bi2WO6 nanoparticles on TiO2 nanotubes, as well as strong mutual effects and well-proportioned formation of heterostructures in between the Bi2WO6 and TiO2 phases. These improvements arose from the cellulose-derived unique structures, leading to an enhanced absorption of visible light together with an accelerated separation and transfer of the photogenerated electron-hole pairs of the nanocomposites, which resulted in increased effective amounts of photogenerated carriers for the photocatalytic reactions. It was demonstrated that the photoinduced electrons dominated the photocatalytic reduction of Cr(VI), while hydroxyl radicals and reactive holes contributed to the photocatalytic degradation of rhodamine B.
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Affiliation(s)
- Zehao Lin
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
- Shenzhen Middle School, Shenzhen, Guangdong 518001, P. R. China
| | - Zhan Yang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
| | - Jianguo Huang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, P. R. China
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17
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Cao Y, Yue L, He Z, Li Z, Lian J, Zhou S, Luo X. Effectively compound the heterojunction formed by flower-like Bi 2S 3 and g-C 3N 4 to enhance photocatalytic activity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:61148-61160. [PMID: 35438399 DOI: 10.1007/s11356-022-19815-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
In this study, the flower-shaped Bi2S3/g-C3N4-2.6 heterojunction obtained by solvothermal method and its photocatalytic degradation efficiency of rhodamine B (RhB) and tetracycline (TC) in aqueous solution within 40 min is as high as 98.8% and 94.6%. For RhB degradation, the photocatalytic reaction rate constant (k) of Bi2S3/g-C3N4-2.6 is approximately 1.8 and 45.5 times that of Bi2S3 and g-C3N4. For TC, k is 3.1 and 2.4 times that of Bi2S3 and g-C3N4, respectively. The key to determining the high catalytic activity of Bi2S3/g-C3N4 lies in the formation of a good heterojunction between Bi2S3 and g-C3N4, which accelerates the electron transfer rate between the heterojunction interface and effectively avoids electron-hole recombination. The effects of catalyst dosage, different pH values, inorganic anions, and capture agents on the photodegradation performance of RhB were investigated. The results show that the catalyst dosage is 1.33 g/L, and the solution pH is in the range of 5-9, which has the best removal effect on pollutants, and the isolation of holes (h+) with strong oxidizing ability promotes the collapse of pollutant molecules. Combined with electrochemical tests, a possible degradation mechanism was advised.
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Affiliation(s)
- Yunmeng Cao
- School of Environmental Science and Engineering, Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Lin Yue
- School of Environmental Science and Engineering, Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Shijiazhuang, 050018, China.
| | - Zhuang He
- School of Environmental Science and Engineering, Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Zaixing Li
- School of Environmental Science and Engineering, Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Jing Lian
- School of Environmental Science and Engineering, Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Shilei Zhou
- School of Environmental Science and Engineering, Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Xiao Luo
- School of Environmental Science and Engineering, Pollution Prevention Biotechnology Laboratory of Hebei Province, Hebei University of Science and Technology, Shijiazhuang, 050018, China
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18
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Tuerhong M, Chen P, Ma Y, Li Y, Li J, Yan C, Zhu B. Bi2MoO6/red phosphorus heterojunction for reducing Cr(VI) and mitigating Escherichia coli infection. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Removal of Cr(VI) from Wastewater Using Graphene Oxide Chitosan Microspheres Modified with α-FeO(OH). MATERIALS 2022; 15:ma15144909. [PMID: 35888374 PMCID: PMC9319010 DOI: 10.3390/ma15144909] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/05/2022] [Accepted: 07/12/2022] [Indexed: 11/30/2022]
Abstract
Graphene oxide and chitosan microspheres modified with α−FeO(OH) (α−FeO(OH)/GOCS) are prepared and utilized to investigate the performance and mechanism for Cr(VI) removal from aqueous solutions and the possibility of Fe secondary pollution. Batch experiments were carried out to identify the effects of pH, mass, and volume ratio (m/v), coexisting ions, time (t), temperature (T), and Cr(VI) initial concentration (C0) on Cr(VI) removal, and to evaluate adsorption kinetics, equilibrium isotherm, and thermodynamics, as well as the possibility of Fe secondary pollution. The results showed that Cr(VI) adsorption increased with C0, t, and T but decreased with increasing pH and m/v. Coexisting ions inhibited Cr(VI) adsorption, and this inhibition increased with increasing concentration. The influence degrees of anions and cations on the Cr(VI) adsorption in descending order were SO42− > PO42− > NO3− > Cl− and Ca2+ > Mg2+ > Mn2+, respectively. The equilibrium adsorption capacity of Cr(VI) was the highest at 24.16 mg/g, and the removal rate was 97.69% under pH = 3, m/v = 1.0 g/L, T = 298.15 K, and C0 = 25 mg/L. Cr(VI) adsorption was well fitted to a pseudo-second-order kinetic model and was spontaneous and endothermic. The best fit of Cr(VI) adsorption with the Langmuir and Sips models indicated that it was a monolayer and heterogeneous adsorption. The fitted maximum adsorption capacity was 63.19 mg/g using the Sips model under 308.15 K. Cr(VI) removal mainly included electrostatic attraction between Cr(VI) oxyanions with surface Fe−OH2+, and the adsorbed Cr(VI) was partially reduced to Cr(III) and then precipitated on the surface. In addition, there was no Fe secondary pollution during Cr(VI) adsorption.
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Peng P, Chen Z, Li X, Wu Y, Xia Y, Duan A, Wang D, Yang Q. Biomass-derived carbon quantum dots modified Bi2MoO6/Bi2S3 heterojunction for efficient photocatalytic removal of organic pollutants and Cr (Ⅵ). Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120901] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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21
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Li S, Wang C, Cai M, Liu Y, Dong K, Zhang J. Designing oxygen vacancy mediated bismuth molybdate (Bi 2MoO 6)/N-rich carbon nitride (C 3N 5) S-scheme heterojunctions for boosted photocatalytic removal of tetracycline antibiotic and Cr(VI): Intermediate toxicity and mechanism insight. J Colloid Interface Sci 2022; 624:219-232. [PMID: 35660890 DOI: 10.1016/j.jcis.2022.05.151] [Citation(s) in RCA: 65] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/22/2022] [Accepted: 05/27/2022] [Indexed: 12/11/2022]
Abstract
Polymeric N-rich carbon nitride of C3N5 is being utilized as a new visible-light-driven catalyst due to its narrower bandgap (∼2.0 eV). Building step-scheme (S-scheme) heterojunction by coupling with other semiconductors especially those own oxygen vacancies (OVs) can further upgrade the photocatalytic performance of C3N5-based photocatalysts. Herein, a novel S-scheme heterojunction of OVs mediated Bi2MoO6/C3N5 was fabricated by in-situ growing Bi2MoO6 nanoparticles with OVs on C3N5 nanosheets. Benefiting from the efficient separation and transfer of high energetic charge carriers by S-scheme charge migration, enriched structural defects, as well as the close contact by the in-situ growth, the heterojunction exhibited superior visible-light photocatalytic performance toward the removal of tetracycline (TC) and Cr(VI) than C3N5, Bi2MoO6, and their mechanical mixture under visible light. The TC degradation routes and the bio-toxicity evolution of TC were explored. Moreover, the photocatalytic mechanism for TC decomposition and Cr(VI) reduction over Bi2MoO6/C3N5 with OVs were elucidated. This work presents a newfangled vision for designing promising C3N5-based S-scheme heterojunction photocatalysts for pollution control.
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Affiliation(s)
- Shijie Li
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316022, China; Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan, Zhejiang Province, 316022, China.
| | - Chunchun Wang
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316022, China; Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan, Zhejiang Province, 316022, China
| | - Mingjie Cai
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316022, China; Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan, Zhejiang Province, 316022, China
| | - Yanping Liu
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316022, China; Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan, Zhejiang Province, 316022, China.
| | - Kexin Dong
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316022, China; Institute of Innovation & Application, Zhejiang Ocean University, Zhoushan, Zhejiang Province, 316022, China
| | - Junlei Zhang
- State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
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22
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Xiao HJ, Liao XJ, Wang H, Ren SW, Cao JT, Liu YM. In Situ Formation of Bi2MoO6-Bi2S3 Heterostructure: A Proof-Of-Concept Study for Photoelectrochemical Bioassay of l-Cysteine. Front Chem 2022; 10:845617. [PMID: 35665063 PMCID: PMC9158332 DOI: 10.3389/fchem.2022.845617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
A novel signal-increased photoelectrochemical (PEC) biosensor for l-cysteine (L-Cys) was proposed based on the Bi2MoO6–Bi2S3 heterostructure formed in situ on the indium–tin oxide (ITO) electrode. To fabricate the PEC biosensor, Bi2MoO6 nanoparticles were prepared by a hydrothermal method and coated on a bare ITO electrode. When L-Cys existed, Bi2S3 was formed in situ on the interface of the Bi2MoO6/ITO electrode by a chemical displacement reaction. Under the visible light irradiation, the Bi2MoO6–Bi2S3/ITO electrode exhibited evident enhancement in photocurrent response compared with the Bi2MoO6/ITO electrode, owing to the signal-increased sensing system and the excellent property of the formed Bi2MoO6–Bi2S3 heterostructure such as the widened light absorption range and efficient separation of photo-induced electron–hole pairs. Under the optimal conditions, the sensor for L-Cys detection has a linear range from 5.0 × 10−11 to 1.0 × 10−4 mol L−1 and a detection limit of 5.0 × 10−12 mol L−1. The recoveries ranging from 90.0% to 110.0% for determining L-Cys in human serum samples validated the applicability of the biosensor. This strategy not only provides a method for L-Cys detection but also broadens the application of the PEC bioanalysis based on in situ formation of photoactive materials.
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Affiliation(s)
- Hui-Jin Xiao
- Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, China
| | - Xiao-Jing Liao
- Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, China
| | - Hui Wang
- Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, China
| | | | - Jun-Tao Cao
- Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, China
- *Correspondence: Jun-Tao Cao, ; Yan-Ming Liu,
| | - Yan-Ming Liu
- Xinyang Key Laboratory of Functional Nanomaterials for Bioanalysis, College of Chemistry and Chemical Engineering, Xinyang Normal University, Xinyang, China
- *Correspondence: Jun-Tao Cao, ; Yan-Ming Liu,
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Ren HT, Jing MZ, Li DS, Li TT, Lou CW, Lin JH, Han X. Photocatalytic reduction of Cr(VI) by Bi 2.15WO 6 complexed with polydopamine: Contribution of the ligand-to-metal charge transfer path. J Colloid Interface Sci 2022; 622:50-61. [PMID: 35489101 DOI: 10.1016/j.jcis.2022.04.109] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 02/08/2023]
Abstract
Photocatalytic reduction of Cr(VI) in water environments attracts more attention; however, the mechanisms involved in this process have not been clearly elucidated yet. In this study, the photocatalytic reduction of Cr(VI) by polydopamine modified Bi2.15WO6 (PDA/BWO) under visible light was conducted. Kinetics results show that PDA apparently accelerates the reduction of Cr(VI). The quasi-first-order kinetic constant of Cr(VI) reduction by 5PDA/BWO is 70.0 times that of the original BWO, reaching 0.070 min-1. X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and Raman analyses confirm the formation of ligand-to-metal charge transfer (LMCT) complex [Bi(III)OC] between PDA and BWO. The formed Bi(III)OC complex enhances visible light response and narrows the bandgap of PDA/BWO. The photoelectrochemical and photoluminescent characterization further reveals that the formed Bi(III)OC complex inhibits the recombination of carriers, thus enhancing the photocatalytic reactivity of PDA/BWO. Electrons, are derived from three paths, including dye sensitization, LMCT and bandgap excitation, contribute to Cr(VI) reduction by PDA/BWO. This study provides new insights on the paths of Cr(VI) reduction by PDA/BWO under visible light.
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Affiliation(s)
- Hai-Tao Ren
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China; State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tiangong University, Tianjin 300387, PR China.
| | - Meng-Zhen Jing
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Da-Shuai Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Ting-Ting Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Ching-Wen Lou
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Jia-Horng Lin
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Xu Han
- Tianjin Key Laboratory of Chemical Process Safety and Equipment Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, PR China
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24
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Zakernezhad MJ, Seidi S, Manouchehri M. Efficient Ion Separation from Environmental and Biological Samples Using a Novel Sorbent Based on Ni-Substituted ZIF-67: Optimization, Equilibrium, Kinetic, and Thermodynamic Study. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c03658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mohammad Javad Zakernezhad
- Department of Analytical Chemistry, Faculty of Chemistry, K. N. Toosi University of Technology, P.O. Box 16315-1618, 15418-49611 Tehran, Iran
| | - Shahram Seidi
- Department of Analytical Chemistry, Faculty of Chemistry, K. N. Toosi University of Technology, P.O. Box 16315-1618, 15418-49611 Tehran, Iran
| | - Mahshid Manouchehri
- Department of Analytical Chemistry, Faculty of Chemistry, K. N. Toosi University of Technology, P.O. Box 16315-1618, 15418-49611 Tehran, Iran
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25
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Luo S, Li S, Zhang S, Cheng Z, Nguyen TT, Guo M. Visible-light-driven Z-scheme protonated g-C 3N 4/wood flour biochar/BiVO 4 photocatalyst with biochar as charge-transfer channel for enhanced RhB degradation and Cr(VI) reduction. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150662. [PMID: 34597547 DOI: 10.1016/j.scitotenv.2021.150662] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/17/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
For the simultaneous photocatalytic reduction of hexavalent chromium (Cr(VI)) and the degradation of rhodamine B (RhB), directional charge-transfer channels and efficient separation of photogenerated holes and electrons are important. Herein, a Z-scheme heterojunction photocatalyst, protonated g-C3N4/BiVO4 decorated with wood flour biochar (pCN/WFB/BiVO4), was prepared through a hydrothermal reaction and electrostatic self-assembly for Cr(VI) photoreduction and RhB photodegradation. The morphological features, crystalline structure, chemical composition, optical properties, specific surface area, and photoelectrochemical properties of the prepared samples were investigated. The pCN/WFB/BiVO4 photocatalyst exhibited superior removal performance when used to remove Cr(VI) and RhB separately or RhB-Cr(VI) system. The biochar bridge served as a charge-transfer channel between two semiconductors, and the electrons in protonated g-C3N4 (pCN) and BiVO4 achieved a charge balance. This led to the formation of a Z-scheme heterojunction, fast photogenerated charge separation, and a powerful redox ability. The pCN/WFB/BiVO4 photocatalyst provides new insight into the mechanisms responsible for boosting multicomponent photocatalytic reactions, while constituting a promising candidate for wastewater treatment.
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Affiliation(s)
- Suyue Luo
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, China
| | - Shaopeng Li
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, China
| | - Shuo Zhang
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, China
| | - Zhuoying Cheng
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, China
| | - Tat Thang Nguyen
- College of Wood Industry and Interior Design, Vietnam National University of Forestry, Xuan Mai, Hanoi 13417, Viet Nam.
| | - Minghui Guo
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Ministry of Education, Harbin 150040, China.
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26
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Jin Z, Li J, Liu D, Sun Y, Li X, Cai Q, Ding H, Gui J. Effective promotion of spacial charge separation of dual S-scheme (1D/2D/0D) WO3@ZnIn2S4/Bi2S3 heterojunctions for enhanced photocatalytic performance under visible light. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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27
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Gu W, Li Q, Zhu H, Zou L. Facile interface engineering of hierarchical flower spherical-like Bi-metal-organic framework microsphere/Bi 2MoO 6 heterostructure for high-performance visible-light photocatalytic tetracycline hydrochloride degradation. J Colloid Interface Sci 2022; 606:1998-2010. [PMID: 34749447 DOI: 10.1016/j.jcis.2021.10.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/22/2021] [Accepted: 10/02/2021] [Indexed: 01/20/2023]
Abstract
The self-assembled Bi-based metal-organic framework microspheres (Bi-MOF-M) by nanorods were successfully constructed by the glycol-assisted solvothermal method. Using Bi-MOF-M as a homologous template, a petal-like Bi2MoO6 (BMO) layer was grown in situ on its surface to facilely construct a chemically bonded heterojunction interface, realizing a micro/nano hierarchical flower spherical-like Bi-MOF-M/BMO heterojunction composite photocatalyst. The as-prepared series of Bi-MOF-M/BMO-x catalysts show higher visible light catalytic performance for tetracycline hydrochloride (TC) degradation. Among them, Bi-MOF-M/BMO-0.3 has the optimal catalytic activity, and the degradation efficiency can reach 93.6% within 60 min of light irradiation with superior mineralization ability and structural stability, and the degradation kinetic constant is 6.12 times that of Bi-MOF-M and 5.69 times that of BMO, respectively. The homologously grown Bi-MOF-M/BMO chemically bonded heterojunction not only effectively broadens the spectral absorption range and enhances the absorption intensity but also promotes the efficient separation of photogenerated carriers through forming a favorable interfacial electric field and well-matched energy band alignment. A reasonable mechanism for the visible light degradation of TC by the Bi-MOF-M/BMO composite catalyst with h+ and 1O2 as the main reactive species is proposed. The micro/nano hierarchical structure of the Bi-MOF/BMO catalyst allows it to exhibit the easy recovery advantage of micron-scale materials while maintaining the high catalytic activity of the primary nano-components.
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Affiliation(s)
- Wenxiu Gu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
| | - Qian Li
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Haiyan Zhu
- School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China
| | - Luyi Zou
- School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China
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28
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Construction of CoTiO3/BiOI p-n heterojunction with nanosheets-on microrods structure for enhanced photocatalytic degradation of organic pollutions. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2021.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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29
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Shao L, Li S, Yang W, Yang Z, Xia X, Liu Y. Crystallinity-dependent photodegradation of metallic Bi in situ grown on perovskite Bi 3TiNbO 9 nanosheets toward antibiotic. CHEMOSPHERE 2021; 285:131554. [PMID: 34271469 DOI: 10.1016/j.chemosphere.2021.131554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/26/2021] [Accepted: 07/11/2021] [Indexed: 06/13/2023]
Abstract
Owing to its wide band gap of ~3.2 eV, perovskite Bi3TiNbO9 only absorbs the solar spectrum in the ultraviolet range, which restricts its use as an effective photocatalyst. Here, a controllable and facile reduction strategy was adopted to promote the in-situ growth of metallic Bi in perovskite Bi3TiNbO9 nanosheets. The in-situ growth of metallic Bi extended photoresponse to cover the whole visible region. Adsorption of tetracycline hydrochloride (TC-H) on the surface of Bi3TiNbO9 with in-situ growth of metallic Bi (BTNOOV-Bi0) was dramatically enhanced, while BTNOOV-Bi0 exhibited a superior photocatalytic performance for tetracycline hydrochloride (TC-H) degradation under visible light irradiation with the degradation rate of 5 times higher than that of pristine Bi3TiNbO9. Moreover, the degradation activity was strongly dependent on the crystallinity of metallic Bi phase in BTNOOV-Bi0 samples. On the basis of experiment results, the visible-light driven catalytic mechanism of BTNOOV-Bi0 was elucidated. Besides, the in-situ growth of metallic Bi was also introduced in perovskite Bi5FeTi3O15, resulting in an enhanced photocatalytic activity, which indicated an enormous potential of this strategy in semiconductor structure tuning. Our study provides an effective approach to boost the performance of photocatalysts for solar-energy conversion.
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Affiliation(s)
- Luhua Shao
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Sijian Li
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Wenwu Yang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Zhenfei Yang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Xinnian Xia
- College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China; Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha, 410082, PR China.
| | - Yutang Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China
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30
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Lin Z, Zheng Y, Deng F, Luo X, Zou J, Shao P, Zhang S, Tang H. Target-directed design of dual-functional Z-scheme AgIn5S8/SnS2 heterojunction for Pb(II) capture and photocatalytic reduction of Cr(VI): Performance and mechanism insight. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119430] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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31
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Shen J, Qian L, Huang J, Guo Y, Zhang Z. Enhanced degradation toward Levofloxacin under visible light with S-scheme heterojunction In2O3/Ag2CO3: Internal electric field, DFT calculation and degradation mechanism. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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32
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Guo C, Wu S, Gao X, Li M, Long H. Mechanistic study of Cr (VI) removal by modified alginate/GO composite via synergistic adsorption and photocatalytic reduction. Int J Biol Macromol 2021; 189:910-920. [PMID: 34478793 DOI: 10.1016/j.ijbiomac.2021.08.203] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 11/26/2022]
Abstract
A novel composite material was prepared by blending graphene oxide into polyethyleneimine grafted sodium alginate. The synthesized material was investigated as adsorbent and photocatalyst for the removal of hexavalent chromium (Cr (VI)) from aqueous solutions. The composite material has shown remarkable removal efficiency for Cr (VI) in high initial concentration solutions as the removal rate reached 86.16% and 99.92% for adsorption and photoreduction, respectively. We discovered experimentally that the adsorption was dominated via electrostatic interaction while the blending of GO could contribute in stimulating electrons for the photoreduction process. Moreover, the photoreduction can alter the surface charge of chromium species, thus electrostatic repulsion could regenerating the active sites of composite spontaneously. The conduction band energy was calculated as -2.04 eV, which proved that blending GO can narrow the bandgap of the composite material, thus enhance the light response and the photoreduction ability towards Cr (VI).
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Affiliation(s)
- Cheng Guo
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Maanshan, Anhui 243002, China; School of Metallurgical Engineering, Anhui University of Technology, Maanshan, Anhui 243032, China
| | - Shaojie Wu
- School of Metallurgical Engineering, Anhui University of Technology, Maanshan, Anhui 243032, China
| | - Xiangpeng Gao
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Maanshan, Anhui 243002, China; School of Metallurgical Engineering, Anhui University of Technology, Maanshan, Anhui 243032, China.
| | - Mingyang Li
- School of Metallurgical Engineering, Anhui University of Technology, Maanshan, Anhui 243032, China
| | - Hongming Long
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling, Anhui University of Technology, Ministry of Education, Maanshan, Anhui 243002, China; School of Metallurgical Engineering, Anhui University of Technology, Maanshan, Anhui 243032, China
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33
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Ma H, Liu J, Zuo S, Yu Y, Liu W, Wang Y, Li B. One‐Step Fabrication of 2D/2D Z‐Scheme BiOCl/g‐C
3
N
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Nanosheets Heterojunction for Efficient Degradation of RhB and Cr(VI) Ions Reduction under Visible‐Light Illumination. ChemistrySelect 2021. [DOI: 10.1002/slct.202102668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Hecheng Ma
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 PR China
| | - Jianjun Liu
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 PR China
| | - Shengli Zuo
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 PR China
| | - Yingchun Yu
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 PR China
| | - Wenqi Liu
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 PR China
| | - Yimeng Wang
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 PR China
| | - Baoshan Li
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing 100029 PR China
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34
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Sun J, Hou Y, Yu Z, Tu L, Yan Y, Qin S, Chen S, Lan D, Zhu H, Wang S. Visible-light-driven Z-scheme Zn 3In 2S 6/AgBr photocatalyst for boosting simultaneous Cr (VI) reduction and metronidazole oxidation: Kinetics, degradation pathways and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126543. [PMID: 34323719 DOI: 10.1016/j.jhazmat.2021.126543] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/27/2021] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
It is urgently needed to develop high-performance materials that can synchronously remove heavy metals and organic pollutants. Herein, the visible-light responsive Zn3In2S6/AgBr composites were prepared for concurrent removals of metronidazole (MNZ) and Cr (VI). In the Cr (VI)-MNZ coexisting system, the removals of MNZ and Cr (VI) using the optimized Zn3In2S6/AgBr-15 photocatalyst reached 98.2% and 94.8% within 2 h, respectively; higher than those using counterparts. The radical species trapping and electron spin resonance (ESR) results demonstrated that ·OH was the most dominated species for MNZ oxidation, and photo-generated electrons were responsible for Cr (VI) reduction. Besides, slight competition for ·O2- during the simultaneous MNZ degradation and Cr (VI) reduction occurred. Energy band structure analysis, ESR and the outstanding photocatalytic performance for MNZ and Cr (VI) removals demonstrated that the Zn3In2S6/AgBr-15 was a Z-scheme photocatalyst, which promoted photo-induced carrier's separation. Possible MNZ degradation pathways and mechanism over the Z-scheme Zn3In2S6/AgBr were also proposed based on the identified intermediates. This study could inspire new ideas for design of efficient Z-scheme photocatalysts for wastewater treatment.
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Affiliation(s)
- Jiangli Sun
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Yanping Hou
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China; MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Nanning 530004, China.
| | - Zebin Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Nanning 530004, China; MOE Key Laboratory of New Processing Technology for Non-ferrous Metals and Materials, Nanning 530004, China
| | - Lingli Tu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Yimin Yan
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Shanming Qin
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Shuo Chen
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Danquan Lan
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Hongxiang Zhu
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
| | - Shuangfei Wang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China; Guangxi Bossco Environmental Protection Technology Co., Ltd, 12 Kexin Road, Nanning 530007, China
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35
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Zhao L, Guo L, Tang Y, Zhou J, Shi B. Novel g-C 3N 4/C/Fe 2O 3 Composite for Efficient Photocatalytic Reduction of Aqueous Cr(VI) under Light Irradiation. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02411] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Liming Zhao
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P. R. China
- Key Laboratory of Leather Chemistry and Engineering, (Sichuan University), Ministry of Education, Chengdu 610065, P. R. China
| | - Lijun Guo
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P. R. China
- Key Laboratory of Leather Chemistry and Engineering, (Sichuan University), Ministry of Education, Chengdu 610065, P. R. China
| | - Yuling Tang
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P. R. China
- Key Laboratory of Leather Chemistry and Engineering, (Sichuan University), Ministry of Education, Chengdu 610065, P. R. China
| | - Jianfei Zhou
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P. R. China
- Key Laboratory of Leather Chemistry and Engineering, (Sichuan University), Ministry of Education, Chengdu 610065, P. R. China
| | - Bi Shi
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, P. R. China
- Key Laboratory of Leather Chemistry and Engineering, (Sichuan University), Ministry of Education, Chengdu 610065, P. R. China
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36
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Zheng X, Liu T, Wen J, Liu X. Flower-like Bi 2S 3-In 2S 3 heterojunction for efficient solar light induced photoreduction of Cr(VI). CHEMOSPHERE 2021; 278:130422. [PMID: 33819890 DOI: 10.1016/j.chemosphere.2021.130422] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/21/2021] [Accepted: 03/23/2021] [Indexed: 06/12/2023]
Abstract
To develop Bi2S3-based heterojunction for efficient solar light induced photoreduction of Cr(VI), flower-like Bi2S3-In2S3 composites consisted of nanorods were prepared via a microwave-assisted hydrothermal route. In contrast with pure Bi2S3, Bi2S3-In2S3 composites exhibited the enhanced photoreduction activity while the decreased adsorption capacity for Cr(VI) removal. The best removal efficiency of 70 mg L-1 Cr(VI) solution (99.86%) was achieved by the optimal 3-Bi2S3-In2S3 with a Bi/In molar ratio of 4:1 within 140 min. It's ascribed to the narrow band gap for strengthened visible-light response, the tight interface between Bi2S3 and In2S3 for rapid transfer and separation of charge carriers, and the enough S vacancies for highly-efficient active sites of adsorption-photoreduction. However, the long-term photo-corrosion resulted in the slightly inferior reusability of 3-Bi2S3-In2S3 under solar light irradiation after five cycles.
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Affiliation(s)
- Xiaogang Zheng
- College of Chemistry and Chemical Engineering, Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, Sichuan, 641100, China
| | - Tingting Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, Sichuan, 641100, China
| | - Jing Wen
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Province Key Laboratory of Resources and Chemistry of Salt Lakes, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining, Qinghai, 810008, China.
| | - Xinhui Liu
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
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37
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BiVO4 ternary photocatalyst co-modified with N-doped graphene nanodots and Ag nanoparticles for improved photocatalytic oxidation: A significant enhancement in photoinduced carrier separation and broad-spectrum light absorption. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118423] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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38
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Li H, Li N, Zuo P, Qu S, Shen W. Efficient adsorption-reduction synergistic effects of sulfur, nitrogen and oxygen heteroatom co-doped porous carbon spheres for chromium(VI) removal. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126502] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Kong A, Sun Y, Peng M, Gu H, Fu Y, Zhang J, Li W. Amino-functionalized MXenes for efficient removal of Cr(VI). Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126388] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Liu B, Fan Z, Zhai W, He J, Wang S, Chen F, Wang Y, Li W, Hou X, He Q. Photoreduction properties of novel Z-scheme structured Sr 0.8La 0.2(Ti 1-δ 4+Ti δ 3+)O 3/Bi 2MoO 6 composites for the removal of Cr(vi). RSC Adv 2021; 11:14007-14016. [PMID: 35423932 PMCID: PMC8697671 DOI: 10.1039/d1ra01466h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 03/29/2021] [Indexed: 11/24/2022] Open
Abstract
Novel Z-scheme structured Sr0.8La0.2(Ti1-δ 4+Ti δ 3+)O3/Bi2MoO6 (LSTBM) composites were prepared via a facile two-step solvothermal method. Several characterization techniques were employed to investigate the phases, microstructures, compositions, valence states, oxygen vacancies, surface oxygen absorption, energy band structures and lifetime of photoproduced carriers. It was found that the lifetime and transfer of the photoproduced carriers of LSTBM were better than those of Bi2MoO6 (BMO) and Sr0.8La0.2(Ti1-δ 4+Ti δ 3+)O3 (LSTO). The LSTBM with a molar ratio of BMO/(LSTO + BMO) = 0.07 (denoted as LSTBM7) showed 1.9 and 3.1 times removal rates than those for BMO and LSTO, respectively. Importantly, the built-in electric field in the heterojunction of LSTBM and Ov-s, especially in Ov-s on the higher-Fermi-level side of the heterojunction, had co-played roles in prolonging the lifetime and improving the transfer of photogenerated carriers. The photoproduced e- played a dominant role in reducing Cr(vi) to Cr(iii) and the produced Cr(iii) tends to form Cr(OH)3 and adsorb onto the surface of the photocatalyst to decrease the nucleation energy. The possible reduction route for Cr(vi) to Cr(iii) over LSTBM7 was figured out. This study implies that inducing Ov-s on the higher-Fermi-level side of the Z-scheme heterojunction is a more effective route for separating the photogenerated electrons and holes and improving the transfer of photogenerated carriers.
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Affiliation(s)
- Bin Liu
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
| | - Zhili Fan
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
| | - Wangjian Zhai
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
| | - Junfeng He
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
| | - Shaofeng Wang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
| | - Fuming Chen
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
| | - Yinzhen Wang
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
| | - Wei Li
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
| | - Xianhua Hou
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
| | - Qinyu He
- Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, Guangdong Provincial Engineering Technology Research Center for Quantum Precision Measurement, Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University China
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Li J, Liu B, Han X, Liu B, Jiang J, Liu S, Zhang J, Shi H. Direct Z-scheme TiO2-x/AgI heterojunctions for highly efficient photocatalytic degradation of organic contaminants and inactivation of pathogens. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118306] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Kong Z, Du Y, Wei J, Zhang H, Fan L. Synthesis of a new ion-imprinted polymer for selective Cr(VI) adsorption from aqueous solutions effectively and rapidly. J Colloid Interface Sci 2021; 588:749-760. [DOI: 10.1016/j.jcis.2020.11.107] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 01/19/2023]
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43
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Rare-earth oxides modified Mg-Al layered double oxides for the enhanced adsorption-photocatalytic activity. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125933] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Qiang T, Chen L, Qin X. Biomass-based 0D/3D N-CQD/MIL-53(Fe) photocatalyst for the simultaneous remediation of multiple hazardous pollutants in sewage. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00747e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The implementation of N-CQD/MIL-53(Fe) photocatalyst in the area of photocatalytic multi-component sewage remediation.
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Affiliation(s)
- Taotao Qiang
- College of Bioresources and Materials Engineering
- Shaanxi University of Science & Technology
- Xi'an
- P.R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education
| | - Lu Chen
- College of Bioresources and Materials Engineering
- Shaanxi University of Science & Technology
- Xi'an
- P.R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education
| | - Xiangtao Qin
- College of Bioresources and Materials Engineering
- Shaanxi University of Science & Technology
- Xi'an
- P.R. China
- National Demonstration Center for Experimental Light Chemistry Engineering Education
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Zhu Z, Wan S, Zhao Y, Qin Y, Ge X, Zhong Q, Bu Y. Recent progress in Bi
2
WO
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‐Based photocatalysts for clean energy and environmental remediation: Competitiveness, challenges, and future perspectives. NANO SELECT 2020. [DOI: 10.1002/nano.202000127] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Zheng Zhu
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET) Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC) UNIST‐NUIST Research Center of Environment and Energy (UNNU) School of Environmental Science and Technology Nanjing University of Information Science and Technology (NUIST) Nanjing P.R. China
| | - Shipeng Wan
- School of Chemical and Engineering Nanjing University of Science and Technology Nanjing P.R. China
| | - Yunxia Zhao
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET) Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC) UNIST‐NUIST Research Center of Environment and Energy (UNNU) School of Environmental Science and Technology Nanjing University of Information Science and Technology (NUIST) Nanjing P.R. China
| | - Yong Qin
- Jiangsu Key Laboratory of Advanced Materials and Technology School of Petrochemical Engineering Changzhou University Changzhou Jiangsu P.R. China
| | - Xinlei Ge
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET) Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC) UNIST‐NUIST Research Center of Environment and Energy (UNNU) School of Environmental Science and Technology Nanjing University of Information Science and Technology (NUIST) Nanjing P.R. China
| | - Qin Zhong
- School of Chemical and Engineering Nanjing University of Science and Technology Nanjing P.R. China
| | - Yunfei Bu
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET) Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC) UNIST‐NUIST Research Center of Environment and Energy (UNNU) School of Environmental Science and Technology Nanjing University of Information Science and Technology (NUIST) Nanjing P.R. China
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Enesca A, Andronic L. The Influence of Photoactive Heterostructures on the Photocatalytic Removal of Dyes and Pharmaceutical Active Compounds: A Mini-Review. NANOMATERIALS 2020; 10:nano10091766. [PMID: 32906732 PMCID: PMC7560097 DOI: 10.3390/nano10091766] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/26/2020] [Accepted: 09/03/2020] [Indexed: 12/17/2022]
Abstract
The diversification of pollutants type and concentration in wastewater has underlined the importance of finding new alternatives to traditional treatment methods. Advanced oxidation processes (AOPs), among others, are considered as promising candidate to efficiently remove organic pollutants such as dyes or pharmaceutical active compounds (PhACs). The present minireview resumes several recent achievements on the implementation and optimization of photoactive heterostructures used as photocatalysts for dyes and PhACs removal. The paper is focused on various methods of enhancing the heterostructure photocatalytic properties by optimizing parameters such as synthesis methods, composition, crystallinity, morphology, pollutant concentration and light irradiation.
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