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Xing SF, Tian HF, Yan Z, Song C, Wang SG. Stability and biomineralization of cadmium sulfide nanoparticles biosynthesized by the bacterium Rhodopseudomonas palustris under light. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131937. [PMID: 37421856 DOI: 10.1016/j.jhazmat.2023.131937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/08/2023] [Accepted: 06/23/2023] [Indexed: 07/10/2023]
Abstract
Cadmium (Cd) pollution is regarded as a potent problem due to its hazard risks to the environment, making it crucial to be removed. Compared to the physicochemical techniques (e.g., adsorption, ion exchange, etc.), bioremediation is a promising alternative technology for Cd removal, due to its cost-effectiveness, and eco-friendliness. Among them, microbial-induced cadmium sulfide mineralization (Bio-CdS NPs) is a process of great significance for environmental protection. In this study, microbial cysteine desulfhydrase coupled with cysteine acted as a strategy for Bio-CdS NPs by Rhodopseudomonas palustris. The synthesis, activity, and stability of Bio-CdS NPs-R. palustris hybrid was explored under different light conditions. Results show that low light (LL) intensity could promote cysteine desulfhydrase activities to accelerate hybrid synthesis, and facilitated bacterial growth by the photo-induced electrons of Bio-CdS NPs. Additionally, the enhanced cysteine desulfhydrase activity effectively alleviated high Cd-stress. However, the hybrid rapidly dissolved under changed environmental factors, including light intensity and oxygen. The factors affecting the dissolution were ranked as follows: darkness/microaerobic ≈ darkness/aerobic < LL/microaerobic < high light (HL)/microaerobic < LL/aerobic < HL/aerobic. The research provides a deeper understanding of Bio-CdS NPs-bacteria hybird synthesis and its stability in Cd-polluted water, allowing advanced bioremediation treatment of heavy metal pollution in water.
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Affiliation(s)
- Su-Fang Xing
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Hui-Fang Tian
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Zhen Yan
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Chao Song
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
| | - Shu-Guang Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; Sino-French Research Institute for Ecology and Environment (ISFREE), School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; Weihai Research Institute of Industrial Technology, Shandong University, Weihai 264209, China.
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Photoactivities regulating of inorganic semiconductors and their applications in photoelectrochemical sensors for antibiotics analysis: A systematic review. Biosens Bioelectron 2022; 216:114634. [DOI: 10.1016/j.bios.2022.114634] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 08/02/2022] [Accepted: 08/09/2022] [Indexed: 02/04/2023]
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Singh T, Sharma S, Singh R, Pal DB, Ahmad I, Alam MM, Singh NL, Srivastava M, Srivastava N. Sustainable approaches towards green synthesis of TiO 2 nanomaterials and their applications in photo-catalysis mediated sensingtomonitor environmental pollutions. LUMINESCENCE 2022. [PMID: 35997211 DOI: 10.1002/bio.4370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 08/16/2022] [Accepted: 08/19/2022] [Indexed: 11/06/2022]
Abstract
Nanomaterials are gaining enormous interests owing to their novel applications that have been explored nearly in every field of our contemporary society. In this scenario, preparations of nanomaterials following green routes have attracted widespread attention in terms of sustainable, reliable and environmentally friendly practice to produce diverse nanostructures. In this review, we summarized the fundamental processes and mechanisms of green synthesis approaches of TiO2 NPs. We explore the role of plants and microbes as natural bioresources to prepare TiO2 NPs. Particularly, focused have been made to explore the potential of TiO2 based nanomaterials to design variety of sensing platforms by exploiting the photo-catalysis efficiency under the influence of light source. Such types of sensing can of massive importance to monitor the environmental pollutions and thereby to invent advanced strategies to remediate hazardous pollutants to offer clean environment.
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Affiliation(s)
- Tripti Singh
- School of Biosciences IMS Ghaziabad UC Campus, Ghaziabad, Uttar Pradesh, India
| | - Shalini Sharma
- School of Biosciences IMS Ghaziabad UC Campus, Ghaziabad, Uttar Pradesh, India
| | - Rajeev Singh
- Department of Environmental Studies, Satyawati College, University of Delhi, Delhi, India
| | - Dan Bahadur Pal
- Department of Chemical Engineering, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Mohammad Mahtab Alam
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Nand Lal Singh
- Department of chemistry, Banaras Hindu University (BHU), Varanasi, U.P., India
| | - Manish Srivastava
- Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, India
| | - Neha Srivastava
- Department of Chemical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, India
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Revisiting the mechanisms of nitrite ions and ammonia removal from aqueous solutions: photolysis versus photocatalysis. PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES : OFFICIAL JOURNAL OF THE EUROPEAN PHOTOCHEMISTRY ASSOCIATION AND THE EUROPEAN SOCIETY FOR PHOTOBIOLOGY 2022; 21:1833-1843. [PMID: 35947301 DOI: 10.1007/s43630-022-00260-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 06/22/2022] [Indexed: 10/15/2022]
Abstract
Nitrite ions and ammonia are widespread forms of inorganic water pollutants. Nevertheless, the mechanisms of their photolytic and photocatalytic reactions under UV-A irradiation are still fully undisclosed, particularly, at different pH values under aerobic and inert atmospheres. Herein, we have studied the photolytic decomposition of nitrite ions under different conditions using 365 nm UV-A LED as a light source instead of mercury lamps that emit photons in the UV-B region and generate a lot of heat. The results indicated that the rate of nitrite disproportionation in the dark at pH ≤ 3.0 is remarkably high relative to the rate of the photolytic decomposition. At pH ˃ 3, the photolytic reaction is negligible and nitrite ions showed considerable stability. In contrast, the photocatalytic oxidation of nitrite ions over TiO2 photocatalysts, namely, TiO2P25, TiO2UV100, and TiO2 anatase/brookite mixture proceeds at pH ˃ 3.0. TiO2 P25 exhibited the highest photocatalytic activity at pH 5. Interestingly, the photolytic simultaneous removal of nitrite ions and ammonia was possible at pH 9.0 in the absence of oxygen (Ar atmosphere). A 42.69 ± 0.66%, 27.75 ± 1.7%, and 32.74 ± 0.59% of nitrogen calculated based on nitrite, ammonia, and both of them, respectively, can be removed after 6 h of UV-A irradiation. The selectivity of N2 evolution was 77.6%. The nitrogen removal rate was significantly reduced in the presence of TiO2 photocatalyst evincing that TiO2 photocatalysis is applicable for nitrite ions oxidation, whereas the photolytic process is better suited for the simultaneous removal of nitrite ions and ammonia.
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Determination of nitrite in food based on its sensitizing effect on cathodic electrochemiluminescence of conductive PTH-DPP films. Food Chem 2022; 397:133760. [PMID: 35907391 DOI: 10.1016/j.foodchem.2022.133760] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 06/17/2022] [Accepted: 07/20/2022] [Indexed: 02/08/2023]
Abstract
Herein, a novel strategy for electrochemiluminescence (ECL) detection of nitrite based on its sensitization effect on cathode ECL emission of 3,6-di(2-thienyl)-2,5-dihydropyrrolo [3,4-c] pyrrole-1,4-dione (TH-DPP) polymeric films (PTH-DPP) was formulated, by means of a one-step electropolymerization of TH-DPP with a short time on the glassy carbon electrode (GCE). It was shown that the PTH-DPP film-modified GCE exhibited a strong ECL response when S2O82- was used as a co-reactant. The ECL emission could be greatly enhanced by PTH-DPP with nitrite in a K2S2O8/PBS solution system and occurred at a relatively lower potential in comparison with traditional cathode ECL emitter, leading to high sensitivity and good selectivity. The ECL sensor exhibits excellent linear relationship in the ranges of 0.3 to 100 μM and 100 to 1000 μM for nitrite detection, with an outstanding detection limit of 0.08 μM (S/N = 3). The ECL sensor provides an impressive outcome for the detection of practical samples.
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Chen W, Liu S, Fu Y, Yan H, Qin L, Lai C, Zhang C, Ye H, Chen W, Qin F, Xu F, Huo X, Qin H. Recent advances in photoelectrocatalysis for environmental applications: Sensing, pollutants removal and microbial inactivation. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214341] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Liu X, Xu C, Xie S, Zhu L, Wang X. Evaluation of photodegradation performance by paper microzones. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150916. [PMID: 34653466 DOI: 10.1016/j.scitotenv.2021.150916] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Currently, the performance evaluation of catalysts usually requires expensive instruments. Hence, it is imperative to develop an alternative, green and sustainable method to investigate the photocatalytic reaction processes. Herein, the variation of degradation performance of different wastewaters with different dosage of P25 TiO2 was evaluated to verify the reliability of the paper microzones method (PMZs). The optimum P25 TiO2 dosage of 1 g/L for the degradation of methylene blue (MB) (UV light for 6 mins) and 0.5 g/L for the degradation of fuchsin basic (FB) (UV light for 5 mins) was obtained by the PMZs method. For the photocatalytic degradation of trivalent iron ion complexed salicylic acid (Fe(III)-SA) solution, the R2 values of 0.904 and 0.801 were obtained for the photocatalytic reaction kinetics by PMZs and spectrophotometry, respectively, which again indicated the high reliability of PMZs. The accuracy of the results obtained by PMZs method relative to the spectrophotometric method ranged from 68.80% to 87.54% when degrading MB, FB, mixture of MB and FB, and Fe(III)-SA by P25 TiO2. Therefore, the PMZs method is all in line with the requirements of low-carbon environmental protection and green chemistry, and has broad application prospects in the future.
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Affiliation(s)
- Xian Liu
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China.
| | - Chengxiang Xu
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China.
| | - Shiwei Xie
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China.
| | - Lei Zhu
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China.
| | - Xun Wang
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China.
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Liu M, Yang J, Wang J, Liu Z, Hu C. Light-Addressable Paper-Based Photoelectrochemical Analytical Device with Tunable Detection Throughput for On-Site Biosensing. Anal Chem 2022; 94:583-587. [DOI: 10.1021/acs.analchem.1c04907] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Min Liu
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Jia Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Juan Wang
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Zhihong Liu
- College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chengguo Hu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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Ma X, Wang X, Xu L, Chen F. Oxygen Vacancy Clusters Enriched TiO2 with Low Pt Content for Superior Photocatalytic Activity. Catal Letters 2021. [DOI: 10.1007/s10562-021-03855-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Zhao Y, Li Y, Sun L. Recent advances in photocatalytic decomposition of water and pollutants for sustainable application. CHEMOSPHERE 2021; 276:130201. [PMID: 33725623 DOI: 10.1016/j.chemosphere.2021.130201] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
Photoinduced reduction and oxidation, the important processes in photocatalytic water splitting and organic degradation, have generated increasing interest to address the energy and environmental issues. In this review, the recent developments in bandgap and interfacial engineering for enhanced light absorption, efficient charge separation and interfacial reaction are focused toward the applications in photocatalytic water splitting and organic degradation. In photoinduced reduction for hydrogen evolution, three major strategies are discussed: cocatalysts, sacrificial agents and heterojunctions. In photoinduced oxidation for organic degradation, three types of emerging pollutants of current concerns are highlighted: organic dyes, pharmaceuticals and volatile organic compounds. The key challenges of promising photocatalysts are discussed for future development and practical application.
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Affiliation(s)
- Yujie Zhao
- School of Materials Science and Engineering, Beihang Unviersity, Beijing, 100191, China
| | - Yan Li
- School of Materials Science and Engineering, Beihang Unviersity, Beijing, 100191, China.
| | - Lidong Sun
- School of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China.
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