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Wang J, Huang R, Liang Y, Long X, Wu S, Han Z, Liu H, Huangfu X. Prediction of antibiotic sorption in soil with machine learning and analysis of global antibiotic resistance risk. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133563. [PMID: 38262323 DOI: 10.1016/j.jhazmat.2024.133563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/07/2024] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
Although the sorption of antibiotics in soil has been extensively studied, their spatial distribution patterns and sorption mechanisms still need to be clarified, which hinders the assessment of antibiotic resistance risk. In this study, machine learning was employed to develop the models for predicting the soil sorption behavior of three classes of antibiotics (sulfonamides, tetracyclines, and fluoroquinolones) in 255 soils with 2203 data points. The optimal independent models obtained an accurate predictive performance with R2 of 0.942 to 0.977 and RMSE of 0.051 to 0.210 on test sets compared to combined models. Besides, a global map of the antibiotic sorption capacity of soil predicted with the optimal models revealed that the sorption potential of fluoroquinolones was the highest, followed by tetracyclines and sulfonamides. Additionally, 14.3% of regions had higher antibiotic sorption potential, mainly in East and South Asia, Central Siberia, Western Europe, South America, and Central North America. Moreover, a risk index calculated with the antibiotic sorption capacity of soil and population density indicated that about 3.6% of soils worldwide have a high risk of resistance, especially in South and East Asia with high population densities. This work has significant implications for assessing the antibiotic contamination potential and resistance risk.
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Affiliation(s)
- Jingrui Wang
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China
| | - Ruixing Huang
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China
| | - Youheng Liang
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China
| | - Xinlong Long
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China
| | - Sisi Wu
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China
| | - Zhengpeng Han
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China
| | - Hongxia Liu
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China
| | - Xiaoliu Huangfu
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment, and Ecology, Chongqing University, Chongqing 400044, China.
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Sharma R, Thakur J, Jaryal VB, Rana DS, Thakur S, Gupta N, Singh D. Nitrogen and sulfur functionalized microporous carbon nanomaterial derived from waste coconut husk for the efficient detection and removal of ofloxacin. CHEMOSPHERE 2024; 346:140653. [PMID: 37949185 DOI: 10.1016/j.chemosphere.2023.140653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/24/2023] [Accepted: 11/06/2023] [Indexed: 11/12/2023]
Abstract
This study uses waste coconut husk to synthesize carbon quantum dots decorated graphene-like structure for sustainable detection and removal of ofloxacin. The XRD spectrum shows the carbon nanomaterial's layered structure with turbostratic carbon stacking on its surface. The FESEM and HRTEM studies claim the successful development of quantum dots decorated 2D layered structure of carbon nanomaterial. The functionalization of sulfur and nitrogen is well observed and studied through XPS, while Raman spectra have provided insight into the surface topology of the as-synthesized nanostructure. The BET surface area was found to be 1437.12 m2/g with a microporous structure (pore width 2.0 nm) which interestingly outcompete many reported carbon-based nanomaterials such as graphene oxide, reduced graphene oxide and quantum dots. The detection and removal processes are monitored through UV-visible spectroscopy and the obtained detection limit and adsorption capacity were 2.7 nM and 393.94 mg/L respectively. Additionally, 1 mg carbon nanomaterial has removed 49 % ofloxacin from water in just 1 h. In this way, this study has successfully managed the coconut husk waste after its utilization for environmental remediation purposes.
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Affiliation(s)
- Ritika Sharma
- Department of Environmental Sciences, Central University of Himachal Pradesh (CUHP), Kangra, Dharamshala, 176215, HP, India
| | - Jyoti Thakur
- Department of Environmental Sciences, Central University of Himachal Pradesh (CUHP), Kangra, Dharamshala, 176215, HP, India
| | - Vishal Bharati Jaryal
- Department of Chemistry and Chemical Sciences, Central University of Himachal Pradesh (CUHP), Kangra, Dharamshala, 176215, HP, India
| | | | - Sourbh Thakur
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 4-100, Gliwice, Poland
| | - Neeraj Gupta
- Department of Chemistry and Chemical Sciences, Central University of Himachal Pradesh (CUHP), Kangra, Dharamshala, 176215, HP, India
| | - Dilbag Singh
- Department of Environmental Sciences, Central University of Himachal Pradesh (CUHP), Kangra, Dharamshala, 176215, HP, India.
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Mohammadian E, Hadavimoghaddam F, Kheirollahi M, Jafari M, Chenlu X, Liu B. Probing Solubility and pH of CO2 in aqueous solutions: Implications for CO2 injection into oceans. J CO2 UTIL 2023. [DOI: 10.1016/j.jcou.2023.102463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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Haq Khan ZU, Khan TM, Khan A, Shah NS, Muhammad N, Tahir K, Iqbal J, Rahim A, Khasim S, Ahmad I, Shabbir K, Gul NS, Wu J. Brief review: Applications of nanocomposite in electrochemical sensor and drugs delivery. Front Chem 2023; 11:1152217. [PMID: 37007050 PMCID: PMC10060975 DOI: 10.3389/fchem.2023.1152217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 02/27/2023] [Indexed: 03/18/2023] Open
Abstract
The recent advancement of nanoparticles (NPs) holds significant potential for treating various ailments. NPs are employed as drug carriers for diseases like cancer because of their small size and increased stability. In addition, they have several desirable properties that make them ideal for treating bone cancer, including high stability, specificity, higher sensitivity, and efficacy. Furthermore, they might be taken into account to permit the precise drug release from the matrix. Drug delivery systems for cancer treatment have progressed to include nanocomposites, metallic NPs, dendrimers, and liposomes. Materials’ mechanical strength, hardness, electrical and thermal conductivity, and electrochemical sensors are significantly improved using nanoparticles (NPs). New sensing devices, drug delivery systems, electrochemical sensors, and biosensors can all benefit considerably from the NPs’ exceptional physical and chemical capabilities. Nanotechnology is discussed in this article from a variety of angles, including its recent applications in the medical sciences for the effective treatment of bone cancers and its potential as a promising option for treating other complex health anomalies via the use of anti-tumour therapy, radiotherapy, the delivery of proteins, antibiotics, and vaccines, and other methods. This also brings to light the role that model simulations can play in diagnosing and treating bone cancer, an area where Nanomedicine has recently been formulated. There has been a recent uptick in using nanotechnology to treat conditions affecting the skeleton. Consequently, it will pave the door for more effective utilization of cutting-edge technology, including electrochemical sensors and biosensors, and improved therapeutic outcomes.
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Affiliation(s)
- Zia Ul Haq Khan
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan
- *Correspondence: Zia Ul Haq Khan, ; Noor Shad Gul,
| | - Taj Malook Khan
- Drug Discovery Research Center, Southwest Medical University, Luzhou, China
- Department of Pharmacology, Laboratory of Cardiovascular Pharmacology, The School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Amjad Khan
- Department of Zoology, University of Lakki Marwat, Lakki Marwat, Pakistan
| | - Noor Samad Shah
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan
| | - Nawshad Muhammad
- Department of Dental Materials, Institute of Basic Medical Sciences, Khyber Medical University, Peshawar, Pakistan
| | - Kamran Tahir
- Institute of Chemical Sciences, Gomal University, Dera Ismail Khan, Pakistan
| | - Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, Abu Dhabi, United Arab Emirates
| | - Abdur Rahim
- Department of Chemistry, COMSATS University Islamabad, Islamabad, Pakistan
| | - Syed Khasim
- Nanotechnology Research Unit, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Iftikhar Ahmad
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan
| | - Khadija Shabbir
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari, Pakistan
| | - Noor Shad Gul
- Drug Discovery Research Center, Southwest Medical University, Luzhou, China
- Department of Pharmacology, Laboratory of Cardiovascular Pharmacology, The School of Pharmacy, Southwest Medical University, Luzhou, China
- *Correspondence: Zia Ul Haq Khan, ; Noor Shad Gul,
| | - Jianbo Wu
- Drug Discovery Research Center, Southwest Medical University, Luzhou, China
- Department of Pharmacology, Laboratory of Cardiovascular Pharmacology, The School of Pharmacy, Southwest Medical University, Luzhou, China
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Zhao J, Tan S, Li H, Wang Y, Yao T, Liu L, Liu K. Multi-walled Carbon Nanotubes Remediate the Phytotoxicity of Quinclorac to Tomato. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 109:477-483. [PMID: 35849168 DOI: 10.1007/s00128-022-03582-8] [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: 03/08/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
In order to remediate the phytotoxicity of quinclorac to tomato by multi-walled carbon nanotubes (MWCNTs), the adsorption of quinclorac to MWCNTs was monitored and the effect of MWCNTs on the phytotoxicity of quinclorac to tomato in soil were studied. The results showed that the Linear equation and Freundlich equation can well fit the adsorption isotherm of quinclorac in the soil containing MWCNTs. The adsorption of quinclorac in soil was significantly enhanced by the addition of MWCNTs; the Kd of soil (1% MWCNTs) was 28.7 times of pure soil. The quinclorac had an obvious inhibitory effect on the growth of tomatoes; serious phytotoxicity was also induced even at the lowest concentration of 0.025 mg/kg. With the MWCNTs content in soil increased to 0.5% and 1%, the phytotoxicity of quinclorac to tomatoes decreased significantly, and the height and fresh weight of tomatoes were even higher than those of the control group, indicating that MWCNTs can promote the growth of tomato. These results provide a reference for resolving the problem of phytotoxicity induced by residual herbicides in farmland.
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Affiliation(s)
- Jingyu Zhao
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Shuo Tan
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Hui Li
- Department of Crop and Soil Sciences, North Carolina State University, Raleigh, NC, 27695, USA
| | - Yao Wang
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Ting Yao
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Lejun Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China
| | - Kailin Liu
- College of Plant Protection, Hunan Agricultural University, Changsha, 410128, China.
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Wang X, Zhao Y, Sun Y, Liu D. Highly Effective Removal of Ofloxacin from Water with Copper-Doped ZIF-8. Molecules 2022; 27:molecules27134312. [PMID: 35807556 PMCID: PMC9268637 DOI: 10.3390/molecules27134312] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/25/2022] [Accepted: 07/01/2022] [Indexed: 02/06/2023] Open
Abstract
Residual antibiotics in wastewater have gained widespread attention because of their toxicity to humans and the environment. In this work, Cu-doped ZIF-8s (Cu-ZIF-8s) were successfully synthesized by the impregnation of Cu2+ in ZIF-8 and applied in the removal of ofloxacin (OFX) from water. Remarkably, excellent adsorption performance was obtained in Cu-ZIF-8s, especially for Cu-ZIF-8-1, in which the adsorption capacity (599.96 mg·g−1) was 4.2 times higher than that of ZIF-8 and superior to various adsorbents reported previously. The adsorption kinetics and adsorption isotherm follow the pseudo-second-order model and the Langmuir model, respectively. Furthermore, the removal efficiencies of OFX in Cu-ZIF-8-1 reached over 90% at low concentrations. It was revealed that electrostatic interaction and complexation play important roles in the adsorption process. In addition, the material can be regenerated by simple methods. Therefore, the obtained Cu-doped MOFs may have a promising application in the treatment of antibiotic-containing wastewater.
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Affiliation(s)
- Xiaowei Wang
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; (X.W.); (Y.Z.)
| | - Yingjie Zhao
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; (X.W.); (Y.Z.)
| | - Yiqi Sun
- College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
| | - Dahuan Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China; (X.W.); (Y.Z.)
- Correspondence:
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Chen Y, Jin Q, Tang Z. Degradation of ofloxacin by potassium ferrate: kinetics and degradation pathways. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:44504-44512. [PMID: 35133598 DOI: 10.1007/s11356-022-18949-x] [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: 08/02/2021] [Accepted: 01/25/2022] [Indexed: 06/14/2023]
Abstract
Drug residues, including various antibiotics, are being increasingly detected in aqueous environments. Ofloxacin (OFX) is one such antibiotic that is widely used in the treatment of several bacterial infections; however, chronic exposure to this antibiotic can have adverse impacts on human health. Hence, the identification of an effective OFX degradation method is essential. Thus, in this study, the degradation performance of OFX using potassium ferrate (Fe(VI)) under the influence of different initial concentrations, pH, temperature, and common ions in water was investigated. OFX degradation by Fe(VI) was directly proportional to the concentration of Fe(VI) and temperature and inversely proportional to the pH. Among the common ions in water, Fe3+ and NH4+ could significantly promote the degradation of OFX by Fe(IV), while humic acid (HA) significantly inhibited it. Under the conditions of [Fe(VI)]:[OFX] = 15:1, T = 25℃, and pH = 7.0, the removal efficiency of 8 μM OFX reached more than 90% in 4 min. Seven intermediates were identified by quadrupole time-of-flight tandem ultra-performance liquid chromatography mass spectrometry (Q-TOF LC/MS), and two possible pathways for the degradation of OFX by Fe(VI) were proposed. Overall, the results suggest that advanced oxidation technology using Fe(VI) is effective for treating wastewater containing OFX.
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Affiliation(s)
- Yanghan Chen
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China
| | - Qiuye Jin
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Sichuan, 610000, China
| | - Zhaomin Tang
- School of New Energy and Materials, Southwest Petroleum University, Chengdu, 610500, China.
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8
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Wu D, Chen Q, Wu M, Zhang P, He L, Chen Y, Pan B. Heterogeneous compositions of oxygen-containing functional groups on biochars and their different roles in rhodamine B degradation. CHEMOSPHERE 2022; 292:133518. [PMID: 34995628 DOI: 10.1016/j.chemosphere.2022.133518] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 12/03/2021] [Accepted: 12/31/2021] [Indexed: 06/14/2023]
Abstract
The reactivity of pyrogenic carbon has attracted a great deal of research attentions recently. The oxygen-containing structures are rich on the surface of biochars, and involved in accepting and donating electrons during the interactions between biochar and organic contaminants. In this work, the species and content of oxygen-containing functional groups on biochar surface were regulated through chemical modification, and batch sorption/degradation experiments were carried out for rhodamine B (RhB). Based on the comparison of surface functional groups, biochars produced below 200 °C mediated RhB degradation through phenol hydroxyl group, while semiquinone and carboxylic acid groups were the main reaction active sites for biochars produced at higher than 500 °C. Considering that various biochar properties play roles in mediating organics degradation, the strategies in manipulating biochar properties should be carefully considered.
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Affiliation(s)
- Danping Wu
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China
| | - Quan Chen
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China.
| | - Min Wu
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China
| | - Peng Zhang
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China
| | - Liping He
- Yunnan Research Academy of Eco-environmental Sciences, Kunming, Yunnan, 650034, China
| | - Yihui Chen
- Yunnan Research Academy of Eco-environmental Sciences, Kunming, Yunnan, 650034, China
| | - Bo Pan
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, 650500, China.
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Liang Y, Zhang Q, Li S, Fei J, Zhou J, Shan S, Li Z, Li H, Chen S. Highly efficient removal of quinolones by using the easily reusable MOF derived-carbon. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127181. [PMID: 34844338 DOI: 10.1016/j.jhazmat.2021.127181] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/31/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
As anthropogenic antibiotics, quinolones, e.g., ofloxacin have adverse impacts on ecological systems and human heaths. The removal of quinolones is of great importance, and adsorption techniques have been widely used to remove this hazardous contaminant. However, a robust and easy-operating adsorbent is still emergently required due to the complex chemical structure of quinolones. In this study, we successfully synthesized the promising metallic carbons (MCs) containing carbon nanotubes and cobalt nanoparticles by carbonizing Zn/Co-ZIF at 900 °C. Three different molar ratios of Co and Zn were applied to optimize the adsorption capacity on ofloxacin (OFL). Results showed MC with molar ratio of Co and Zn at 3:1 (Co-CNT/NPC3/1) achieved the maximal adsorption capacity to 118.3 mg g-1. Its adsorption performance was satisfied in the pH range from 5 to 9 and ionic strengths at 0.01 M. The main mechanisms for these adsorptions were identified as electrostatic attraction, metal coordination and π-π EDA. Removal efficiencies of quinolones higher than 68 mg g-1 indicated the strong feasibility of this adsorbent for wastewater treatments. The regeneration of Co-CNT/NPC3/1 at 600 °C allowed its at least 4-time reusability and its magnetic property enabled external magnets to recycle it from real environments.
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Affiliation(s)
- Yixuan Liang
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, China
| | - Qiyu Zhang
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, China
| | - Sumei Li
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, China
| | - Jiaying Fei
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, China
| | - Jian Zhou
- Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing 100124, China
| | - Saisai Shan
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, China
| | - Ziyi Li
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, China
| | - Hanbing Li
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, China
| | - Sha Chen
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, China.
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Mathur P, Sanyal D, Callahan DL, Conlan XA, Pfeffer FM. Treatment technologies to mitigate the harmful effects of recalcitrant fluoroquinolone antibiotics on the environ- ment and human health. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118233. [PMID: 34582925 DOI: 10.1016/j.envpol.2021.118233] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/06/2021] [Accepted: 09/24/2021] [Indexed: 06/13/2023]
Abstract
Antibiotic proliferation in the environment and their persistent nature is an issue of global concern as they induce antibiotic resistance threatening both human health and the ecosystem. Antibiotics have therefore been categorized as emerging pollutants. Fluoroquinolone (FQs) antibiotics are an emerging class of contaminants that are used extensively in human and veterinary medicine. The recalcitrant nature of fluoroquinolones has led to their presence in wastewater, effluents and water bodies. Even at a low concentration, FQs can stimulate antibacterial resistance. The main sources of FQ contamination include waste from pharmaceutical manufacturing industries, hospitals and households that ultimately reaches the wastewater treatment plants (WWTPs). The conventional WWTPs are unable to completely remove FQs due to their chemical stability. Therefore, the development and implementation of more efficient, economical, convenient treatment and removal technologies are needed to adequately address the issue. This review provides an overview of the technologies available for the removal of fluoroquinolone antibiotics from wastewater including adsorptive removal, advanced oxidation processes, removal using non-carbon based nanomaterials, microbial degradation and enzymatic degradation. Each treatment technology is discussed on its merits and limitations and a comparative view is presented on the choice of an advanced treatment process for future studies and implementation. A discussion on the commercialization potential and eco-friendliness of each technology is also included in the review. The importance of metabolite identification and their residual toxicity determination has been emphasized. The last section of the review provides an overview of the policy interventions and regulatory frameworks that aid in retrofitting antibiotics as a central key focus contaminant and thereby defining the discharge limits for antibiotics and establishing safe manufacturing practices.
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Affiliation(s)
- Purvi Mathur
- TERI-Deakin NanoBiotechnology Centre, Sustainable Agriculture Division, The Energy and Resources Institute, New Delhi, 110003, India; Deakin University, School of Life and Environmental Sciences (Burwood Campus), 221 Burwood Highway, Burwood, VIC, 3125, Australia
| | - Doyeli Sanyal
- TERI-Deakin NanoBiotechnology Centre, Sustainable Agriculture Division, The Energy and Resources Institute, New Delhi, 110003, India; Amity University Punjab, IT City, Sector 82A, Mohali, 140308, India.
| | - Damien L Callahan
- Deakin University, School of Life and Environmental Sciences (Burwood Campus), 221 Burwood Highway, Burwood, VIC, 3125, Australia
| | - Xavier A Conlan
- Deakin University, School of Life and Environmental Sciences, (Waurn Ponds Campus), 75 Pigdons Road, Locked Bag 20000, Geelong, VIC, 3220, Australia
| | - Frederick M Pfeffer
- Deakin University, School of Life and Environmental Sciences, (Waurn Ponds Campus), 75 Pigdons Road, Locked Bag 20000, Geelong, VIC, 3220, Australia
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Al-Musawi TJ, Mengelizadeh N, Taghavi M, Mohebi S, Balarak D. Activated carbon derived from Azolla filiculoides fern: a high-adsorption-capacity adsorbent for residual ampicillin in pharmaceutical wastewater. BIOMASS CONVERSION AND BIOREFINERY 2021; 13:1-13. [PMID: 34631357 PMCID: PMC8487454 DOI: 10.1007/s13399-021-01962-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 05/31/2023]
Abstract
In this study, the effectiveness of activated carbon prepared from the Azolla filiculoides fern (ACAF) in order to remove ampicillin from aqueous solution was examined. The preparation of the ACAF was performed through chemical and physical activation processes with the presence of ZnCl2 and at a temperature of 450 °C. The ACAF yield was 44.7% of the fresh Azolla filiculoides. The results obtained from the characterization study indicate that the prepared ACAF has excellent surface and internal properties to be used as an adsorbent. The surface area, porosity, and pore volume were estimated to be 716.4 m2/g, 51.2%, and 0.621 cm3/g, respectively. The functional groups in ACAF that were responsible for the adsorption of ampicillin molecules were detected using FTIR analyses. The maximum efficiency (96.84%) and uptake (114.3 mg/g) of ACAF to remove ampicillin were achieved under the following conditions: ACAF dose = 0.8 g/L, pH = 7, concentration of ampicillin = 100 mg/L, contact time = 60 min, and temperature = 45 °C. It was found that the kinetic and isotherm data matched the pseudo-second-order and Langmuir models with high precision values, respectively. Considering the thermodynamics of the adsorption, the endothermic and spontaneous nature of the ampicillin adsorption onto ACAF was approved. The ampicillin adsorption capacity by ACAF was not significantly affected by the presence of different concentrations of NaNO3 competitor ion. The considerably higher adsorption capacity of the ACAF for ampicillin (114.3 mg/g) than other previously used adsorbents with excellent regeneration level (five cycles) depicts the superior performance of ACAF in the adsorption systems. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13399-021-01962-4.
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Affiliation(s)
- Tariq J. Al-Musawi
- Department of Chemical Engineering and Petroleum Industries, Al-Mustaqbal University College, Babylon, Iraq
| | - Nezamaddin Mengelizadeh
- Department of Environmental Health Engineering, Evas Faculty of Health, Larestan University of Medical Sciences, Larestan, Iran
| | - Mahmoud Taghavi
- Department of Environmental Health Engineering, Social Determinants of Health Research Center, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Samaneh Mohebi
- Student Research Committee, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Davoud Balarak
- Department of Environmental Health, Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
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Kaur G, Singh N, Rajor A, Kushwaha JP. Deep eutectic solvent functionalized rice husk ash for effective adsorption of ofloxacin from aqueous environment. JOURNAL OF CONTAMINANT HYDROLOGY 2021; 242:103847. [PMID: 34166909 DOI: 10.1016/j.jconhyd.2021.103847] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/20/2021] [Accepted: 06/06/2021] [Indexed: 05/22/2023]
Abstract
Deep eutectic solvents (DESs) have achieved the rising attention of the scientific community because of their distinctive physicochemical properties and variety of applications. Herein, DES composed of choline chloride as hydrogen bond acceptor (HBA) and glycolic acid as hydrogen bond donor (HBD) was synthesized. Next, the prepared DES was examined as a functionalization agent for rice husk ash (RHA) to form a novel adsorbent (DES-RHA). To ensure the formation of DES and to recognize the modifications occurred due to the functionalization process, a comprehensive characterization study was performed using 1HNMR, FTIR spectroscopy, TGA, XRD, FESEM, HR-TEM and BET surface area. Potential of the prepared DES-RHA was investigated for the uptake of ofloxacin (OFL) from an aqueous environment. The impact of relevant process parameters was evaluated under optimum conditions, and the data were examined applying various kinetic and isotherm models. As per the regression findings, adsorption kinetics data were well described by pseudo-second-order model, and the isotherm data were in good agreement with Langmuir, Temkin, RP and Freundlich isotherm models. Further, the adsorption procedure was endothermic and spontaneous. The high regeneration and adsorption capacity of DES-RHA than untreated RHA adds a promising approach to eliminate emerging pollutants present in effluent sites.
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Affiliation(s)
- Gurleenjot Kaur
- School of Energy and Environment, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Neetu Singh
- Department of Chemical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India.
| | - Anita Rajor
- School of Energy and Environment, Thapar Institute of Engineering and Technology, Patiala 147004, India
| | - Jai Prakash Kushwaha
- Department of Chemical Engineering, Thapar Institute of Engineering and Technology, Patiala 147004, India
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Hu B, Tang Y, Wang X, Wu L, Nong J, Yang X, Guo J. Cobalt-gadolinium modified biochar as an adsorbent for antibiotics in single and binary systems. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106235] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Ashiq A, Vithanage M, Sarkar B, Kumar M, Bhatnagar A, Khan E, Xi Y, Ok YS. Carbon-based adsorbents for fluoroquinolone removal from water and wastewater: A critical review. ENVIRONMENTAL RESEARCH 2021; 197:111091. [PMID: 33794177 DOI: 10.1016/j.envres.2021.111091] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/23/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
This review summarizes the adsorptive removal of Fluoroquinolones (FQ) from water and wastewater. The influence of different physicochemical parameters on the adsorptive removal of FQ-based compounds is detailed. Further, the mechanisms involved in the adsorption of FQ-based antibiotics on various adsorbents are succinctly described. As the first of its kind, this paper emphasizes the performance of each adsorbent for FQ-type antibiotic removal based on partition coefficients of the adsorbents that is a more sensitive parameter than adsorption capacity for comparing the performances of adsorbents under various adsorbate concentrations and heterogeneous environmental conditions. It was found that π-π electron donor-acceptor interactions, electrostatic interactions, and pore-filling were the most prominent mechanisms for FQ adsorption by carbon and clay-based adsorbents. Among all the categories of adsorbents reviewed, graphene showed the highest performance for the removal of FQ antibiotics from water and wastewater. Based on the current state of knowledge, this review fills the gap through methodolically understanding the mechanism for further improvement of FQ antibiotics adsorption performance from water and wastewater.
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Affiliation(s)
- Ahmed Ashiq
- Ecosphere Resilience Research Centre, Faculty of Applied Science, University of Sri Jayewardenepura, Sri Lanka
| | - Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Science, University of Sri Jayewardenepura, Sri Lanka.
| | - Binoy Sarkar
- Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, United Kingdom
| | - Manish Kumar
- Department of Earth Sciences, Indian Institute of Technology Gandhinagar, India
| | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, FI-50130, Mikkeli, Finland
| | - Eakalak Khan
- Civil and Environmental Engineering and Construction Department, University of Nevada - Las Vegas, Las Vegas, NV, USA
| | - Yunfei Xi
- Institute for Future Environments & School of Earth and Atmospheric Sciences, Queensland University of Technology (QUT), 2 George Street, Brisbane, Queensland, 4001, Australia
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, South Korea.
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Yin H, Shi H, Sun L, Xia D, Yuan X. Construction of Ag 2O-modified g-C 3N 4 photocatalyst for rapid visible light degradation of ofloxacin. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:11650-11664. [PMID: 33128144 DOI: 10.1007/s11356-020-11390-y] [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: 06/12/2020] [Accepted: 10/22/2020] [Indexed: 06/11/2023]
Abstract
The design of stable and highly efficient photocatalysts had emerged as an economic and promising way for eliminating harmful pharmaceutical pollutants. In this study, a series of Ag2O-modified g-C3N4 composites with different Ag2O amounts (denoted as Ag2O-CNx) were fabricated via a facile reflux condensation methodology. Ofloxacin (OFL) was chosen as a model pollutant to evaluate the degradation efficiency of the photocatalytic system. The optimal photocatalytic activity was achieved with Ag2O-CN1.0, which reached up to 99.1% removal of OFL after 15-min reaction and the pseudo-first-order constant was 0.469 min-1, approximately 42 times higher than that of g-C3N4. Considering the complexity of the actual environment, the important influential factors such as catalyst dosage, initial OFL concentration, solution pH, and natural organic matter on the OFL degradation were systematically investigated. Additionally, Ag2O-CN1.0 showed good stability and recyclability in multiple cycle experiments. The feasible photodegradation mechanism of OFL was proposed with radical scavenger experiments, and the degradation products were determined. Furthermore, the enhanced photocatalytic activity could be ascribed to not only the high photogenerated charge separation efficiency and the surface plasmon resonance effect of metallic Ag, but also the p-n heterojunction formed between Ag2O and g-C3N4. Therefore, Ag2O-CN1.0 was a treatment material possessing great application prospects for eliminating OFL in wastewater.
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Affiliation(s)
- Huifen Yin
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China
| | - Hanlu Shi
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China
| | - Lei Sun
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China
- Engineering Research Center for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, 430073, China
| | - Dongsheng Xia
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.
- Engineering Research Center for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, 430073, China.
| | - Xiangjuan Yuan
- School of Environmental Engineering, Wuhan Textile University, Wuhan, 430073, China.
- Engineering Research Center for Clean Production of Textile Dyeing and Printing, Ministry of Education, Wuhan, 430073, China.
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Yadav S, Asthana A, Singh AK, Chakraborty R, Sree Vidya S, Singh A, Carabineiro SAC. Methionine-Functionalized Graphene Oxide/Sodium Alginate Bio-Polymer Nanocomposite Hydrogel Beads: Synthesis, Isotherm and Kinetic Studies for an Adsorptive Removal of Fluoroquinolone Antibiotics. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:568. [PMID: 33668774 PMCID: PMC7996286 DOI: 10.3390/nano11030568] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/19/2021] [Accepted: 02/20/2021] [Indexed: 12/17/2022]
Abstract
In spite of the growing demand for new antibiotics, in the recent years, the occurrence of fluoroquinolone antibiotics (as a curative agent for urinary tract disorders and respiratory problems) in wastewater have drawn immense attention. Traces of antibiotic left-overs are present in the water system, causing noxious impact on human health and ecological environments, being a global concern. Our present work aims at tackling the major challenge of toxicity caused by antibiotics. This study deals with the efficient adsorption of two commonly used fluoroquinolone (FQ) antibiotics, i.e., Ofloxacin (OFX) and Moxifloxacin (MOX) on spherical hydrogel beads generated from methionine‒functionalized graphene oxide/ sodium alginate polymer (abbreviated Met-GO/SA) from aqueous solutions. The composition, morphology and crystal phase of prepared adsorbents were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FTIR), high-resolution transmission electron microscopy (HR-TEM) and thermogravimetric analysis/differential thermogravimetry (TGA/DTG). Batch adsorption tests are followed to optimize the conditions required for adsorption process. Both functionalized and non-functionalized adsorbents were compared to understand the influence of several experimental parameters, such as, the solution pH, contact time, adsorbent dosage, temperature and initial concentration of OFX and MOX on adsorption. The obtained results indicated that the functionalized adsorbent (Met-GO/SA) showed a better adsorption efficiency when compared to non-functionalized (GO/SA) adsorbent. Further, the Langmuir isotherm was validated as the best fitting model to describe adsorption equilibrium and pseudo second-order-kinetic model fitted well for both types of adsorbate. The maximum adsorption capacities of Met-GO/SA were 4.11 mg/g for MOX and 3.43 mg/g for OFX. Thermodynamic parameters, i.e., ∆G°, ∆H° and ∆S° were also calculated. It was shown that the overall adsorption process was thermodynamically favorable, spontaneous and exothermic in nature. The adsorbents were successfully regenerated up to four cycles with 0.005 M NaCl solutions. Overall, our work showed that the novel Met-GO/SA nanocomposite could better contribute to the removal of MOX and OFX from the liquid media. The gel beads prepared have adequate features, such as simple handling, eco-friendliness and easy recovery. Hence, polymer gel beads are promising candidates as adsorbents for large-scale water remediation.
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Affiliation(s)
- Sushma Yadav
- Department of Chemistry, Govt. V.Y.T. PG Autonomous College, Durg 491001, India; (S.Y.); (A.A.); (R.C.)
| | - Anupama Asthana
- Department of Chemistry, Govt. V.Y.T. PG Autonomous College, Durg 491001, India; (S.Y.); (A.A.); (R.C.)
| | - Ajaya Kumar Singh
- Department of Chemistry, Govt. V.Y.T. PG Autonomous College, Durg 491001, India; (S.Y.); (A.A.); (R.C.)
| | - Rupa Chakraborty
- Department of Chemistry, Govt. V.Y.T. PG Autonomous College, Durg 491001, India; (S.Y.); (A.A.); (R.C.)
| | - S. Sree Vidya
- Department of Chemistry, Kalyan PG College, Durg 490006, India;
| | - Ambrish Singh
- School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China;
| | - Sónia A. C. Carabineiro
- LAQV-REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal;
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Yang C, Miao S, Li T. Influence of water washing treatment on Ulva prolifera-derived biochar properties and sorption characteristics of ofloxacin. Sci Rep 2021; 11:1797. [PMID: 33469099 PMCID: PMC7815725 DOI: 10.1038/s41598-021-81314-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 01/06/2021] [Indexed: 11/02/2022] Open
Abstract
The influences of water washing treatment on the properties of Ulva prolifera-derived biochar (U.P-biochar) and its sorption characteristics of ofloxacin (OFL) were investigated. The results showed that the water washing treatment significantly changed the physiochemical structures of U.P-biochars, and improved the sorption capacity of OFL. The sorption capacity of OFL by U.P-biochar was closely dependent on pyrolysis temperature (200-600 °C) and equilibrium solution pH (3-11). Different sorption mechanisms (e.g. cation exchange, electrostatic attraction, H-bond and cationic-π and π-π interactions) were dominant for specific U.P-biochars under various pH regions (acidic, neutral and alkaline). Moreover, the unwashed and washed U.P-biochars prepared at 200 °C (BC200 and BCW200) showed a higher sorption capacity of OFL at pH = 7. The two-compartment first-order model provided an appropriate description of the sorption kinetics of OFL by BC200 and BCW200 (R2 > 0.98), which revealed that the contribution ratios between the fast and slow sorption compartments (ffast/fslow, 1.55 for BC200 and 1.25 for BCW200) reduced after water washing treatment of U.P-biochar. The values of n for the Freundlich model were less than 1, which demonstrated that the sorption of OFL by BC200 and BCW200 was favourable and nonlinear. Also, the sorption of OFL by BC200 and BCW200 increased with an increase in solution temperature and the sorption process was spontaneous and endothermic. This study provides valuable information for being a primary consideration in the production and application of U.P-biochar.
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Affiliation(s)
- Chenghu Yang
- Key Laboratory of Sustainable Utilization of Technology Research for Fishery Resource of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan, 316021, Zhejiang, People's Republic of China
- Marine and Fishery Institute, Zhejiang Ocean University, Zhoushan, 316021, People's Republic of China
| | - Shichao Miao
- Marine and Fishery Institute, Zhejiang Ocean University, Zhoushan, 316021, People's Republic of China
| | - Tiejun Li
- Key Laboratory of Sustainable Utilization of Technology Research for Fishery Resource of Zhejiang Province, Zhejiang Marine Fisheries Research Institute, Zhoushan, 316021, Zhejiang, People's Republic of China.
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18
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Wang L, Chen G, Shu H, Cui X, Luo Z, Chang C, Zeng A, Zhang J, Fu Q. Facile covalent preparation of carbon nanotubes / amine-functionalized Fe 3O 4 nanocomposites for selective extraction of estradiol in pharmaceutical industry wastewater. J Chromatogr A 2021; 1638:461889. [PMID: 33485030 DOI: 10.1016/j.chroma.2021.461889] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 01/03/2023]
Abstract
As a typical steroid hormone drug, estradiol (E2) is also one of the most frequently detected endocrine disrupting chemicals (EDCs) in the aquatic environment. Herein, in response to the potential risk of E2 in steroid hormone pharmaceutical industry wastewater to human and wildlife, a novel carbon nanotubes / amine-functionalized Fe3O4 (CNTs/MNPs@NH2) nanocomposites with magnetic responsive have been developed for the enrichment and extraction of E2 in pharmaceutical industry wastewater, where amino-functionalized Fe3O4 magnetic nanoparticles (MNPs@NH2) were used as a magnetic source. The resultant CNTs/MNPs@NH2 possessed both the features of CNTs and desired magnetic property, enabling to rapidly recognize and separate E2 from pharmaceutical industry wastewater. Meanwhile, the CNTs/MNPs@NH2 had good binding behavior toward E2 with fast binding kinetics and high adsorption capacity, as well as exhibited satisfactory selectivity to steroidal estrogen compounds. Furthermore, the change of pH value of aqueous phase in adsorption solvent hardly affected the adsorption of E2 by CNTs/MNPs@NH2, and the adsorption capacity of E2 ranged from 19.9 to 17.2 mg g-1 in the pH range of 3.0 to 11.0, which is a latent advantage of the follow-up development method to detect E2 in pharmaceutical industry wastewater. As a result, the CNTs/MNPs@NH2 serving as a solid phase extraction medium were successfully applied to efficiently extract E2 from pharmaceutical industry wastewater. Therefore, the CNTs/MNPs@NH2 nanocomposites could be used as a potential adsorbent for removing steroidal estrogens from water. More importantly, the developed method would provide a promising solution for the monitoring and analysis of EDCs in pharmaceutical industry wastewater.
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Affiliation(s)
- Lu Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Drug Safety and Monitoring, Academy of Pharmaceutical Science and Technology, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Guoning Chen
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Drug Safety and Monitoring, Academy of Pharmaceutical Science and Technology, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Hua Shu
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Drug Safety and Monitoring, Academy of Pharmaceutical Science and Technology, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Xia Cui
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Drug Safety and Monitoring, Academy of Pharmaceutical Science and Technology, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Zhimin Luo
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Drug Safety and Monitoring, Academy of Pharmaceutical Science and Technology, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Chun Chang
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Drug Safety and Monitoring, Academy of Pharmaceutical Science and Technology, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Aiguo Zeng
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Drug Safety and Monitoring, Academy of Pharmaceutical Science and Technology, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Jia Zhang
- Shaanxi Hanjiang Pharmaceutical Group Co., Ltd, Hanzhong, 723000, China
| | - Qiang Fu
- Department of Pharmaceutical Analysis, School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, China; Institute of Drug Safety and Monitoring, Academy of Pharmaceutical Science and Technology, Xi'an Jiaotong University, Xi'an, 710061, China.
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Lan RJ, Su WB, Zhang JX. Decolourization of Acid Orange 74 Aqueous Solutions in Presence of Multi-Walled Carbon Nanotubes under Ultrasound Irradiation. J WATER CHEM TECHNO+ 2020. [DOI: 10.3103/s1063455x20040074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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20
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Zhang H, Liu FF, Wang SC, Huang TY, Li MR, Zhu ZL, Liu GZ. Sorption of fluoroquinolones to nanoplastics as affected by surface functionalization and solution chemistry. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 262:114347. [PMID: 32179231 DOI: 10.1016/j.envpol.2020.114347] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/05/2020] [Accepted: 03/06/2020] [Indexed: 06/10/2023]
Abstract
Microplastics have attracted much attention in recent years as they can interact with pollutants in water environment. However, nanoplastics (NPs) with or without the surface functionalization modification have not been thoroughly explored. Here, the sorption behaviors of two fluoroquinolones (FQs), including norfloxacin (NOR) and levofloxacin (LEV) on polystyrene NPs (nano-PS) and carboxyl-functionalized polystyrene NPs (nano-PS-COOH) were investigated. The results showed that sorption isotherms were nonlinear and well fitted by Langmuir model. The sorption capacities of NOR and LEV on nano-PS-COOH were higher than those on nano-PS, and their physical interactions, including polar interaction, electrostatic interaction and hydrogen bonding may be the dominant mechanisms. Moreover, the increase of pH firstly increased the sorption of two FQs on NPs and then decreased because NOR and LEV had a reverse charge at different pH values. Salinity and dissolved organic matter both inhibited the sorption process. These findings show that NPs with or without the surface functionalization modification have different sorption behaviors for environmental pollutants, which deserve our further concern.
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Affiliation(s)
- Huan Zhang
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Fei-Fei Liu
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China.
| | - Su-Chun Wang
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Tian-Yuan Huang
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Meng-Ru Li
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Zhi-Lin Zhu
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China
| | - Guang-Zhou Liu
- Institute of Marine Science and Technology, Shandong University, Qingdao 266237, PR China.
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Ding Y, Jiang W, Liang B, Han J, Cheng H, Haider MR, Wang H, Liu W, Liu S, Wang A. UV photolysis as an efficient pretreatment method for antibiotics decomposition and their antibacterial activity elimination. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122321. [PMID: 32092653 DOI: 10.1016/j.jhazmat.2020.122321] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 05/12/2023]
Abstract
The biological treatment of antibiotic-containing wastewater is a mainstream process, but the antibacterial activity from the persistence of antibiotics would inhibit the biological activity and function of wastewater treatment plants and lead to the risk of transmission of antibiotic resistant bacteria and genes. In this study, UV photolysis was selected as an appropriate pretreatment technology for antibiotic-containing wastewater. It could decompose many kinds of antibiotics and was not inhibited by the coexisting organics in wastewater. The antibacterial activities of five kinds of antibiotics, which were eliminated with UV irradiation, exhibited a significantly positive correlation with their parent compound concentrations. The photodecomposition of the main functional groups in antibiotics contributed to the elimination of antibacterial activity. Defluorination was the main pathway to eliminate the antibacterial activity of antibiotics containing a fluorine substituent (e.g., florfenicol and ofloxacin), while the photoinduced opening of the β-lactam ring was the most efficient route to eliminate the antibacterial activity of β-lactam antibiotics (e.g. cefalexin, amoxicillin and ampicillin). These results demonstrated that UV photolysis could be adopted as an efficient and promising pretreatment strategy for the source control of antibiotic antibacterial activity by the decomposition of antibiotic functional groups before the biological treatment unit.
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Affiliation(s)
- Yangcheng Ding
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Wenli Jiang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Bin Liang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; School of Civil & Environmental Engineering, Harbin Institute of Technology, Shenzhen, 518055, PR China
| | - Jinglong Han
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; School of Civil & Environmental Engineering, Harbin Institute of Technology, Shenzhen, 518055, PR China.
| | - Haoyi Cheng
- School of Civil & Environmental Engineering, Harbin Institute of Technology, Shenzhen, 518055, PR China
| | - Muhammad Rizwan Haider
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China
| | - Hongcheng Wang
- School of Civil & Environmental Engineering, Harbin Institute of Technology, Shenzhen, 518055, PR China
| | - Wenzong Liu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; School of Civil & Environmental Engineering, Harbin Institute of Technology, Shenzhen, 518055, PR China
| | - Shuangjiang Liu
- State Key Laboratory Microbial Resources and Environmental Microbiology Research Center, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, PR China
| | - Aijie Wang
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; School of Civil & Environmental Engineering, Harbin Institute of Technology, Shenzhen, 518055, PR China.
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22
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Liu Y, Peng Y, An B, Li L, Liu Y. Effect of molecular structure on the adsorption affinity of sulfonamides onto CNTs: Batch experiments and DFT calculations. CHEMOSPHERE 2020; 246:125778. [PMID: 31918094 DOI: 10.1016/j.chemosphere.2019.125778] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 05/05/2023]
Abstract
In order to investigate the adsorption behaviors of sulfonamides onto hydroxylated multi - walled carbon nanotubes (CNTs) with a porous structure and large specific surface area, six typical sulfonamides including sulfanilamide (SAM), sulfamerazine (SMR), sulfadimethoxine (SMX), sulfadiazine (SDZ), sulfamethazine (SMT) and sulfametoxydiazine (SMD) were selected to be adsorbed respectively on CNTs, and in the same time the structural parameters of the six sulfonamides molecules were calculated according to the density functional theory (DFT). Based upon above mentioned experiments and the structural parameters, the quantitative correlation between the structural parameters of sulfonamides molecules and their adsorption affinity (e.g. adsorption capacity and adsorption rate constant) onto CNTs was established, respectively. The adsorption data of sulfonamides fitted well with the pseudo - second - order kinetic model and the Langmuir isotherm model. The order of both pseudo - second - order kinetic constant and maximum adsorption capacity of the six sulfonamides were SAM < SMR < SMX < SDZ < SMT < SMD. The frontier molecular orbital energy (EHOMO) and dipole moment (μ) could be used as indicators for the adsorption affinity of sulfonamides onto CNTs. Accordingly, the possible adsorption mechanism was proposed.
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Affiliation(s)
- Yunbo Liu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Yunlan Peng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Baohua An
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Laicai Li
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China
| | - Yong Liu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610066, China; Key Laboratory of Treatment for Special Wastewater of Sichuan Province Higher Education System, Sichuan, Chengdu, 610066, China.
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23
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Pine-wood derived nanobiochar for removal of carbamazepine from aqueous media: Adsorption behavior and influential parameters. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.12.025] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Zhao J, Liang G, Zhang X, Cai X, Li R, Xie X, Wang Z. Coating magnetic biochar with humic acid for high efficient removal of fluoroquinolone antibiotics in water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 688:1205-1215. [PMID: 31726551 DOI: 10.1016/j.scitotenv.2019.06.287] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 06/12/2019] [Accepted: 06/19/2019] [Indexed: 06/10/2023]
Abstract
As antibiotics are widely consumed, fluoroquinolones (FQs) behave to have huge hidden danger to human health. Various agricultural residues have potential to produce biochar rich in porous structure for adsorption of contaminants. In this study, potato leaves and stems were pyrolyzed at 500 °C under anoxic condition for biochar (BC) preparation. At the same conditions, magnetic biochar (MBC) and humic acid (HA) coated magnetic biochar (HAB) were also prepared. In particular, characterizations of HAB showed the extensive coating of HA on MBC surface and introducing more oxygen-containing groups, which may promote the adsorption capacity of biochar. Three typical FQs (ciprofloxacin (CIP), norfloxacin (NOR) and enrofloxacin (ENR)) were used as target contaminants to further investigate the adsorption property of HAB. Compared with BC and MBC, novel adsorbent HAB due to introduction of HA exhibited better FQs adsorption ability, and its maximum adsorption capacity for CIP, NOR and ENR were 1.80, 1.67 and 1.70 times higher than those of MBC and were 3.40, 2.88, 2.96 times higher than those of raw BC, respectively. Pseudo-second-order kinetic model and Langmuir isotherm model could describe the process of FQs adsorbed on HAB more appropriately, and thermodynamic results illustrated that the sorption process was spontaneous and endothermic. In addition, FQs adsorption by HAB was increased with initial solution pH from 3.0 to 10.0, while it was slightly decreased with ionic strength rising (0.001-0.1 M CaCl2). Combined with FTIR results, high FQs removal efficiency could be attributed to electrostatic, hydrophobic, H-bond and π-π EDA interactions.
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Affiliation(s)
- Jing Zhao
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Guiwei Liang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiaoli Zhang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xuewei Cai
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Ruining Li
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Xiaoyun Xie
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhaowei Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
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Wang L, Hua X, Zhang L, Song N, Dong D, Guo Z. Influence of organic carbon fractions of freshwater biofilms on the sorption for phenanthrene and ofloxacin: The important role of aliphatic carbons. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 685:818-826. [PMID: 31238285 DOI: 10.1016/j.scitotenv.2019.06.203] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 06/13/2019] [Accepted: 06/13/2019] [Indexed: 06/09/2023]
Abstract
Sorption to biofilms is thought to be a crucial process controlling the fate of trace organic contaminants in aquatic systems. The organic composition of biofilms is regarded as the determining factor in the sorption mechanism of biofilm organic carbon fractions; however, its role is not well known. Here, the sorption of phenanthrene and ofloxacin was modeled with classic and emerging organic contaminants, respectively, by comparatively investigating nine type of freshwater biofilms cultured in a river, lake, and reservoir in spring, summer, and autumn. The chemical features of the nine biofilms were analyzed using elemental analysis, infrared spectroscopy, X-ray photoelectron spectroscopy, and carbon-13 nuclear magnetic resonance. Results showed that the freshwater biofilms were aliphatic-rich natural amorphous solid substances with O-containing functional groups, and their surface polarity was significantly lower than their bulk polarity. All the isotherms of phenanthrene and ofloxacin sorption by the biofilms were linear. The organic carbon-normalized partition coefficient values for phenanthrene and ofloxacin on the nine biofilms ranged from 91.9 to 364.2 L g-1 and 3.2 to 43.2 L g-1, respectively. The van der Waals interaction between a majority of aliphatic carbon (73.4%-83.9%) in biofilms and the two sorbates was much stronger than π-π interactions between a minority of aromatic carbon (12.7%-21.7%) and sorbates. The surface polarity of the biofilms regulated polar interactions including the hydrogen bonding and electron donor-acceptor interactions. Both the aliphatic carbon and surface polarity in the biofilms enhanced the sorption of phenanthrene and ofloxacin. The sorption characteristics and mechanisms of polycyclic aromatic hydrocarbons and antibiotics on biofilms shown in our present and previous studies are different from those of other ubiquitous natural solid materials such as soils and sediments. This study provides insight into the importance of aliphatic carbon fractions of freshwater biofilms for the sorption of classic and emerging organic contaminants.
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Affiliation(s)
- Liting Wang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Xiuyi Hua
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Liwen Zhang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Na Song
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Deming Dong
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Zhiyong Guo
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China.
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Detection of antibiotic Ofloxacin drug in urine using electrochemical sensor based on synergistic effect of different morphological carbon materials. Microchem J 2019. [DOI: 10.1016/j.microc.2018.12.034] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sayed M, Gul M, Shah NS, Khan JA, Khan ZUH, Rehman F, Khan AR, Rauf S, Arandiyan H, Yang CP. In-situ dual applications of ionic liquid coated Co2+ and Fe3+ co-doped TiO2: Superior photocatalytic degradation of ofloxacin at pilot scale level and enhanced peroxidase like activity for calorimetric biosensing. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Gao B, Li P, Yang R, Li A, Yang H. Investigation of multiple adsorption mechanisms for efficient removal of ofloxacin from water using lignin-based adsorbents. Sci Rep 2019; 9:637. [PMID: 30679691 PMCID: PMC6346052 DOI: 10.1038/s41598-018-37206-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/05/2018] [Indexed: 11/09/2022] Open
Abstract
Two series of lignin (LN)-based adsorbents, namely, cross-linked lignin (LNEs) with different crosslinking densities and carboxymethyl cross-linked lignin (LNECs) with various degrees of carboxymethyl substitution, were prepared to remove ofloxacin (OFL), a popular fluoroquinolone (FQ) antibiotic, from water. LNEs and LNECs exhibited satisfactory performance in OFL adsorption. Both of them had high adsorption capacity (the maximum contribution of 0.828 mmol/g), good anti-interference to some inorganic salts, and efficient regeneration and reuse performance. The crosslinking density and degree of carboxymethyl substitution strongly affected the content and distribution of oxygen-containing groups in these LN-based adsorbents, which played important roles in OFL adsorption. The pH dependencies of the adsorption performance of LNEs and LNECs indicated the involvement of multiple adsorption mechanisms, including hydrogen bond, electrostatic attraction, π-π electron-donor-acceptor interactions, and negative charge-assisted hydrogen bond. Different mechanisms were dominant under various pH levels, in a near neutral pH, the synergistic effect of electrostatic attraction and π-π interaction allows LINEs and LINECs to reach maximum adsorption capacity. Five FQs with similar structures and their two sub structural analogs were compared in terms of adsorption behavior and electrostatic potential by density functional theory using quantum chemical calculation. FQs with secondary amino groups and low π electron cloud density readily bound to LN-based adsorbents. Hence, LNEs and LNECs were efficient and environment-friendly adsorbents.
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Affiliation(s)
- Boqiang Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, P. R. China
| | - Pei Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, P. R. China
| | - Ran Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, P. R. China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, P. R. China
| | - Hu Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, P. R. China.
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Wu L, Yang N, Li B, Bi E. Roles of hydrophobic and hydrophilic fractions of dissolved organic matter in sorption of ketoprofen to biochars. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:31486-31496. [PMID: 30203349 DOI: 10.1007/s11356-018-3071-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 08/27/2018] [Indexed: 06/08/2023]
Abstract
Hydrophobic acid (HoA) and hydrophilic neutral (HiN) are two major fractions of dissolved organic matter (DOM). Their role in the sorption of ketoprofen (KTP) to wheat straw-derived biochars pyrolyzed at 300 °C (WS300) and 700 °C (WS700) was investigated to further probe the mechanisms responsible. WS700 has much higher pore volume and specific surface area (SSA) than WS300. Loading of HoA and HiN resulted in surface coverage of biochars. HoA with larger molecular size led to more pore blockage of biochars than HiN. Higher HoA binding affinity also caused a stronger competition with KTP on biochars. These factors reduced the accessibility of sorption sites for KTP, and significantly inhibited KTP sorption to biochar of lower SSA (i.e., WS300) by HoA. Water solubility (Sw) of KTP was slightly enhanced (3%) in the presence of HoA. In contrast, the presence of HiN reduced (22%) Sw of KTP. The decreased Sw of KTP by HiN exerted a more dominant influence than its competitive and loading effects, thus led to apparent enhanced sorption of KTP, especially to biochar of higher SSA (i.e., WS700). The results demonstrated the diverse effects of HoA and HiN on KTP sorption, which is helpful in understanding pharmaceutical-DOM-biochar interactions and environmental behaviors of pharmaceuticals.
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Affiliation(s)
- Lin Wu
- School of Water Resources and Environment, Beijing Key Laboratory of Water Resources and Environmental Engineering, and MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Ningwei Yang
- School of Water Resources and Environment, Beijing Key Laboratory of Water Resources and Environmental Engineering, and MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Binghua Li
- Beijing Water Science and Technology Institute, Beijing, 100048, China
| | - Erping Bi
- School of Water Resources and Environment, Beijing Key Laboratory of Water Resources and Environmental Engineering, and MOE Key Laboratory of Groundwater Circulation and Environmental Evolution, China University of Geosciences (Beijing), Beijing, 100083, China.
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Wang B, Liu C, Chen Y, Dong F, Chen S, Zhang D, Zhu J. Structural characteristics, analytical techniques and interactions with organic contaminants of dissolved organic matter derived from crop straw: a critical review. RSC Adv 2018; 8:36927-36938. [PMID: 35558903 PMCID: PMC9089241 DOI: 10.1039/c8ra06978f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/25/2018] [Indexed: 11/21/2022] Open
Abstract
Dissolved organic matter (DOM) represents one of the most mobile and reactive organic compounds in an ecosystem and plays an important role in the fate and transport of soil organic pollutants, nutrient cycling and more importantly global climate change. Advances in environment geochemistry in the past two decades have improved our knowledge about the genesis, composition, and structure of DOM, and its effect on the environment. Application of analytical technology, for example UV-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), Nuclear magnetic resonance (NMR) spectroscopy, and three-dimensional fluorescence spectroscopy (3D-EEM) have resulted in these advances. At present, crop straw, as a part of energy development strategy, is mainly used for soil amendment, fodder, fertilizer and industrial materials. Moreover, the fermentation and decomposition of straw should be also promoted for ecological agriculture. However, few studies have focused on the structural properties of DOM derived from crop straw in farmland soil. In this article, DOM derived from crop straw, which is abbreviated to "CDOM", presents active physicochemical properties that can affect the migration and bioavailability of organic contaminants (OCs) in terrestrial ecosystems. The objectives of this review paper are: (i) to discuss the structural characteristics, analytical techniques and interactions between CDOM and OCs in farmland soil; (ii) to present a critical analysis of the impact of CDOM on the physicochemical transformation and transport of OCs in farmland soils; (iii) to provide the perspectives in future research. Therefore, the findings obtained from this study can be utilized to evaluate the relations of interactions between CDOM and OCs in agricultural soils, in order to support some suggestions for future development in agricultural waste recycling, buffering of organic pollution, and the effect on the global carbon cycle.
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Affiliation(s)
- Bin Wang
- School of Environment and Resource, Southwest University of Science and Technology Sichuan 621010 PR China +86 816 2419018 +86 816 2419018
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology Sichuan 621010 PR China
| | - Chang Liu
- School of Environment and Resource, Southwest University of Science and Technology Sichuan 621010 PR China +86 816 2419018 +86 816 2419018
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology Sichuan 621010 PR China
| | - Yuwei Chen
- School of Environment and Resource, Southwest University of Science and Technology Sichuan 621010 PR China +86 816 2419018 +86 816 2419018
- Department of Chemistry and Biochemistry, Laurentian University Sudbury P3E 2C6 Canada
| | - Faqin Dong
- School of Environment and Resource, Southwest University of Science and Technology Sichuan 621010 PR China +86 816 2419018 +86 816 2419018
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology Sichuan 621010 PR China
| | - Shu Chen
- School of Environment and Resource, Southwest University of Science and Technology Sichuan 621010 PR China +86 816 2419018 +86 816 2419018
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology Sichuan 621010 PR China
| | - Di Zhang
- Faculty of Environment Science and Engineering, Kunming University of Science and Technology Yunnan 650500 PR China +86 15887215550
| | - Jingping Zhu
- School of Environment and Resource, Southwest University of Science and Technology Sichuan 621010 PR China +86 816 2419018 +86 816 2419018
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology Sichuan 621010 PR China
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31
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Chu G, Zhao J, Huang Y, Zhou D, Liu Y, Wu M, Peng H, Zhao Q, Pan B, Steinberg CEW. Phosphoric acid pretreatment enhances the specific surface areas of biochars by generation of micropores. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 240:1-9. [PMID: 29729563 DOI: 10.1016/j.envpol.2018.04.003] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 03/31/2018] [Accepted: 04/01/2018] [Indexed: 06/08/2023]
Abstract
Biochars are being increasingly applied in soil for carbon sequestration, fertility improvement, as well as contamination remediation. Phosphoric acid (H3PO4) pretreatment is a method for biochar modification, but the mechanism is not yet fully understood. In this work, biochars and the raw biomass were treated by H3PO4 prior to pyrolysis. Due to an acid catalysis and crosslink, the micropores of the pretreated particles were much more than those without H3PO4 pretreatment, resulting in the dramatical enhancement of specific surface areas of the pretreated particles. Crystalline cellulose (CL) exhibited a greater advantage in the formation of micropores than of amorphous lignin (LG) with H3PO4 modification. The formation mechanisms of micropores were: (a) H+ from H3PO4 contributes to micropores generation via H+ catalysis process; (b) the organic phosphate bridge protected the carbon skeleton from micropore collapse via the crosslinking of phosphate radical. The sorption capacities to carbamazepine (CBZ) and bisphenol A (BPA) increased after H3PO4 modification, which is ascribed to the large hydrophobic surface areas and more abundant micropores. Overall, H3PO4 pretreatment produced biochars with large surface area and high abundance of porous structures. Furthermore, the H3PO4 modified biochars can be applied as high adsorbing material as well as P-rich fertilizer.
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Affiliation(s)
- Gang Chu
- Faculty of Environment Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan, 650500, China
| | - Jing Zhao
- Faculty of Environment Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan, 650500, China
| | - Yu Huang
- Faculty of Environment Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan, 650500, China
| | - Dandan Zhou
- Faculty of Environment Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan, 650500, China
| | - Yang Liu
- Faculty of Environment Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan, 650500, China
| | - Min Wu
- Faculty of Environment Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan, 650500, China
| | - Hongbo Peng
- Faculty of Environment Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan, 650500, China
| | - Qing Zhao
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Bo Pan
- Faculty of Environment Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan, 650500, China.
| | - Christian E W Steinberg
- Faculty of Life Sciences, Institute of Biology, Freshwater & Stress Ecology, Humboldt-University at Berlin, Arboretum, Späthstr. 80/81, 12437, Berlin, Germany
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32
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Zhang L, Dong D, Hua X, Guo Z. Inhibitory effects of extracellular polymeric substances on ofloxacin sorption by natural biofilms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 625:178-184. [PMID: 29289003 DOI: 10.1016/j.scitotenv.2017.12.271] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 12/21/2017] [Accepted: 12/22/2017] [Indexed: 06/07/2023]
Abstract
Natural biofilms have strong affinities for organic contaminants, and their extracellular polymeric substances (EPS) have been thought to control the sorption process. However, the role of EPS in the sorption of antibiotics, an emerging concern, is poorly understood. Here, soluble (SEPS) and bound EPS (BEPS) were extracted from intact biofilms incubated at different lengths of time to obtain SEPS- and BEPS-free biofilms. Batch sorption experiments and infrared spectroscopy were used to investigate the role of EPS in the sorption of ofloxacin (OFL) by natural biofilms. The sorption capacities of OFL onto intact biofilms were lower than that those onto SEPS-free and BEPS-free biofilms. Partition and Langmuir adsorption contributed to the sorption of OFL onto these biofilms. SEPS and BEPS suppressed partitioning of OFL into biofilm organic matter. Meanwhile, the formation of hydrogen bonds could affect the Langmuir adsorption of OFL onto BEPS-free biofilms. These sorption mechanisms occurred simultaneously and enhanced the sorption capacities of biofilms after EPS removal. The information obtained in this study is beneficial for understanding the interaction mechanisms between antibiotics and natural biofilms.
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Affiliation(s)
- Liwen Zhang
- Ministry of Education Key Lab of Groundwater Resources and Environment, Jilin Province Key Lab of Water Resources and Aquatic Environment, College of Environment and Resources, Jilin University, Changchun 130012, China
| | - Deming Dong
- Ministry of Education Key Lab of Groundwater Resources and Environment, Jilin Province Key Lab of Water Resources and Aquatic Environment, College of Environment and Resources, Jilin University, Changchun 130012, China
| | - Xiuyi Hua
- Ministry of Education Key Lab of Groundwater Resources and Environment, Jilin Province Key Lab of Water Resources and Aquatic Environment, College of Environment and Resources, Jilin University, Changchun 130012, China
| | - Zhiyong Guo
- Ministry of Education Key Lab of Groundwater Resources and Environment, Jilin Province Key Lab of Water Resources and Aquatic Environment, College of Environment and Resources, Jilin University, Changchun 130012, China.
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Singla P, Yadav S, Goel N, Singhal S. Morphologically Different Boron Nitride Nanomaterials as Efficient Antibiotic Carriers: Adsorption Isotherm and Kinetics Appraisal. ACTA ACUST UNITED AC 2018. [DOI: 10.1080/22297928.2017.1423244] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Preeti Singla
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - Sarita Yadav
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - Neetu Goel
- Department of Chemistry, Panjab University, Chandigarh-160014, India
| | - Sonal Singhal
- Department of Chemistry, Panjab University, Chandigarh-160014, India
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Huang P, Ge C, Feng D, Yu H, Luo J, Li J, Strong PJ, Sarmah AK, Bolan NS, Wang H. Effects of metal ions and pH on ofloxacin sorption to cassava residue-derived biochar. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 616-617:1384-1391. [PMID: 29074248 DOI: 10.1016/j.scitotenv.2017.10.177] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/12/2017] [Accepted: 10/17/2017] [Indexed: 06/07/2023]
Abstract
In this study, the impacts of various cations, cation strength and pH on ofloxacin (OFL) adsorption to cassava residue-derived biochars were determined. The associated adsorption mechanisms are discussed. The biochars were prepared at pyrolysis temperatures ranging from 350°C to 750°C, and labeled as CW350, CW450, CW550, CW650 and CW750. The Freundlich model provided the best fit to describe the adsorption capacity of OFL and the Freundlich coefficient (logKf) increased with increasing pyrolysis temperature. The inclusion of Zn2+ or Al3+ increased OFL sorption capacities of five biochars, while Cu2+ reduced sorption to CW450 and CW550. No significant impacts on OFL sorption were observed in the presence of K+ and Ca2+. The concentration of Ca2+ affected the adsorption capacity of CW550, but had no significant impact on other biochars. The pH of OFL solution, ranging from 3 to 9, had no significant changes on OFL adsorption by all the tested biochars. Results of FTIR spectra and zeta potential indicated that electrostatic interactions, cationic exchange, metal bridging and micropore filling could be the main sorption mechanism between OFL and biochars. These studies indicated that cassava residue can be converted into biochars that are effective adsorbents for removing OFL from aqueous solution.
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Affiliation(s)
- Peng Huang
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Chengjun Ge
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China; College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Dan Feng
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Huamei Yu
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Jiwei Luo
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - Jiatong Li
- College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China
| | - P J Strong
- Queensland University of Technology, GPO Box 2432, 2 George St, Brisbane, QLD 4001, Australia
| | - Ajit K Sarmah
- Civil & Environmental Engineering Department, Faculty of Engineering, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Nanthi S Bolan
- Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Hailong Wang
- School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Lin'an, Hangzhou 311300, China; Guangdong Dazhong Agriculture Science Co. Ltd., Dongguan, Guangdong 523169, China.
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Sarkar B, Mandal S, Tsang YF, Kumar P, Kim KH, Ok YS. Designer carbon nanotubes for contaminant removal in water and wastewater: A critical review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 612:561-581. [PMID: 28865273 DOI: 10.1016/j.scitotenv.2017.08.132] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 07/31/2017] [Accepted: 08/13/2017] [Indexed: 05/21/2023]
Abstract
The search for effective materials for environmental cleanup is a scientific and technological issue of paramount importance. Among various materials, carbon nanotubes (CNTs) possess unique physicochemical, electrical, and mechanical properties that make them suitable for potential applications as environmental adsorbents, sensors, membranes, and catalysts. Depending on the intended application and the chemical nature of the target contaminants, CNTs can be designed through specific functionalization or modification processes. Designer CNTs can remarkably enhance contaminant removal efficiency and facilitate nanomaterial recovery and regeneration. An increasing number of CNT-based materials have been used to treat diverse organic, inorganic, and biological contaminants. These success stories demonstrate their strong potential in practical applications, including wastewater purification and desalination. However, CNT-based technologies have not been broadly accepted for commercial use due to their prohibitive cost and the complex interactions of CNTs with other abiotic and biotic environmental components. This paper presents a critical review of the existing literature on the interaction of various contaminants with CNTs in water and soil environments. The preparation methods of various designer CNTs (surface functionalized and/or modified) and the functional relationships between their physicochemical characteristics and environmental uses are discussed. This review will also help to identify the research gaps that must be addressed for enhancing the commercial acceptance of CNTs in the environmental remediation industry.
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Affiliation(s)
- Binoy Sarkar
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia; Department of Geological Sciences, Indiana University, Bloomington, IN 47405, USA
| | - Sanchita Mandal
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Yiu Fai Tsang
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong
| | - Pawan Kumar
- Department of Nano Science and Materials, Central University of Jammu, Jammu 181143, India
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea.
| | - Yong Sik Ok
- Korea Biochar Research Center, Kangwon National University, Chuncheon 24341, Republic of Korea; O-Jeong Eco-Resilience Institute (OJERI), Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Republic of Korea.
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Kah M, Sigmund G, Xiao F, Hofmann T. Sorption of ionizable and ionic organic compounds to biochar, activated carbon and other carbonaceous materials. WATER RESEARCH 2017; 124:673-692. [PMID: 28825985 DOI: 10.1016/j.watres.2017.07.070] [Citation(s) in RCA: 200] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/27/2017] [Accepted: 07/28/2017] [Indexed: 05/12/2023]
Abstract
The sorption of ionic and ionizable organic compounds (IOCs) (e.g., pharmaceuticals and pesticides) on carbonaceous materials plays an important role in governing the fate, transport and bioavailability of IOCs. The paradigms previously established for the sorption of neutral organic compounds do not always apply to IOCs and the importance of accounting for the particular sorption behavior of IOCs is being increasingly recognized. This review presents the current state of knowledge and summarizes the recent advances on the sorption of IOCs to carbonaceous sorbents. A broad range of sorbents were considered to evaluate the possibility to read across between fields of research that are often considered in isolation (e.g., carbon nanotubes, graphene, biochar, and activated carbon). Mechanisms relevant to IOCs sorption on carbonaceous sorbents are discussed and critically evaluated, with special attention being given to emerging sorption mechanisms including low-barrier, charge-assisted hydrogen bonds and cation-π assisted π-π interactions. The key role played by some environmental factors is also discussed, with a particular focus on pH and ionic strength. Overall the review reveals significant advances in our understanding of the interactions between IOCs and carbonaceous sorbents. In addition, knowledge gaps are identified and priorities for future research are suggested.
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Affiliation(s)
- Melanie Kah
- University of Vienna, Department of Environmental Geosciences and Environmental Science Research Network, Althanstrasse 14 UZA II, 1090, Vienna, Austria.
| | - Gabriel Sigmund
- University of Vienna, Department of Environmental Geosciences and Environmental Science Research Network, Althanstrasse 14 UZA II, 1090, Vienna, Austria
| | - Feng Xiao
- Department of Civil Engineering, University of North Dakota, Grand Forks, ND, 58202, United States
| | - Thilo Hofmann
- University of Vienna, Department of Environmental Geosciences and Environmental Science Research Network, Althanstrasse 14 UZA II, 1090, Vienna, Austria.
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Wang C, Ma L, Liu B, Zhang D, Pan B. Co-contaminant effects on ofloxacin adsorption onto activated carbon, graphite, and humic acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:23834-23842. [PMID: 28868575 DOI: 10.1007/s11356-017-0038-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 08/25/2017] [Indexed: 06/07/2023]
Abstract
Given their voluminous application, significant amounts of fluoroquinolones are discharged into the environment through wastewater effluent. Adsorption has been shown to be a critical process controlling the environmental behaviors of fluoroquinolones. Competition between ofloxacin (OFL) and naphthalene (NAP)/bisphenol A (BPA) and their adsorption on activated carbon (AC), graphite (GP), and humic acid (HA) were investigated. The suppressed adsorption of OFL was observed on AC and GP, but not on HA, by NAP or BPA. Moreover, for AC, the competition by NAP was slightly stronger than that by BPA. However, for GP, the competition with BPA was higher than that with NAP. These observations indicate that competitive adsorption of OFL with respect to NAP/BPA depends on the degree of overlap of adsorption sites, as interpreted by the following: (i) AC can provide overlapping adsorption sites for OFL, BPA, and NAP, which include non-specific adsorption sites, such as hydrophobic sites, π-π interactions, and micropore filling; (ii) π-π interactions and hydrogen bonding might be responsible for the strong competitive adsorption between BPA and OFL on GP; and (iii) OFL adsorbs on HA through specific adsorption force-electrostatic attraction, with which NAP and BPA cannot compete.
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Affiliation(s)
- Chi Wang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Lixuan Ma
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Bo Liu
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Di Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
| | - Bo Pan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
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Jin T, Yuan W, Xue Y, Wei H, Zhang C, Li K. Co-modified MCM-41 as an effective adsorbent for levofloxacin removal from aqueous solution: optimization of process parameters, isotherm, and thermodynamic studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:5238-5248. [PMID: 28004365 DOI: 10.1007/s11356-016-8262-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 12/13/2016] [Indexed: 04/15/2023]
Abstract
Antibiotics are emerging contaminants due to their potential risks to human health and ecosystems. Poor biodegradability makes it necessary to develop effective physical-chemical methods to eliminate these contaminants from water. The cobalt-modified MCM-41 was prepared by a one-pot hydrothermal method and characterized by SAXRD, N2 adsorption-desorption, SEM, UV-Vis DR, and FTIR spectroscopy. The results revealed that the prepared 3% Co-MCM-41 possessed mesoporous structure with BET surface areas at around 898.5 m2g-1. The adsorption performance of 3% Co-MCM-41 toward levofloxacin (LVF) was investigated by batch experiments. The adsorption of LVF on 3% Co-MCM-41 was very fast and reached equilibrium within 2 h. The adsorption kinetics followed the pseudo-second-order kinetic model with the second-order rate constants in the range of 0.00198-0.00391 g mg-1 min-1. The adsorption isotherms could be well represented by the Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) isotherm equations. Nevertheless, D-R isotherm provided the best fit based on the coefficient of determination and average relative error values. The mean free energy of adsorption (E) calculated from D-R model was about 11 kJ mol-1, indicating that the adsorption was mainly governed by a chemisorption process. Moreover, the adsorption capacity was investigated as a function of pH, adsorbent dosage, LVF concentration, and temperature with help of respond surface methodology (RSM). A quadratic model was established, and an optimal condition was obtained as follows: pH 8.5, adsorbent dosage of 1 g L-1, initial LVF concentration of 119.8 mg L-1, and temperature of 31.6 °C. Under the optimal condition, the adsorption capacity of 3% Co-MCM-41 to LVF could reach about 108.1 mg g-1. The solution pH, adsorbent dosage, LVF concentration, and a combination of adsorbent dose and LVF concentration were significant factors affecting the adsorption process. The adsorption thermodynamic functions were also determined. The negative ΔH 0 (-33.50 kJ mol-1) and ΔS 0 (-43.57 J mol-1 K-1) suggested that the adsorption was an exothermic process accompanied by decreasing disorder. This study may indicate that 3% Co-MCM-41 is a promising adsorbent for removing emerging pollutants of LVF from water.
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Affiliation(s)
- Ting Jin
- Key Laboratory of the Ministry of Education for Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Material Science, Northwest University, Xi'an, 710069, China
| | - Wenhua Yuan
- Key Laboratory of the Ministry of Education for Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Material Science, Northwest University, Xi'an, 710069, China
| | - Yujie Xue
- Key Laboratory of the Ministry of Education for Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Material Science, Northwest University, Xi'an, 710069, China
| | - Hong Wei
- State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Areas, Xi'an University of Technology, Xi'an, 710048, China
| | - Chaoying Zhang
- Key Laboratory of the Ministry of Education for Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Material Science, Northwest University, Xi'an, 710069, China
| | - Kebin Li
- Key Laboratory of the Ministry of Education for Synthetic and Natural Functional Molecule Chemistry, College of Chemistry and Material Science, Northwest University, Xi'an, 710069, China.
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Ibrahim RK, Hayyan M, AlSaadi MA, Hayyan A, Ibrahim S. Environmental application of nanotechnology: air, soil, and water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:13754-88. [PMID: 27074929 DOI: 10.1007/s11356-016-6457-z] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 03/09/2016] [Indexed: 05/17/2023]
Abstract
Global deterioration of water, soil, and atmosphere by the release of toxic chemicals from the ongoing anthropogenic activities is becoming a serious problem throughout the world. This poses numerous issues relevant to ecosystem and human health that intensify the application challenges of conventional treatment technologies. Therefore, this review sheds the light on the recent progresses in nanotechnology and its vital role to encompass the imperative demand to monitor and treat the emerging hazardous wastes with lower cost, less energy, as well as higher efficiency. Essentially, the key aspects of this account are to briefly outline the advantages of nanotechnology over conventional treatment technologies and to relevantly highlight the treatment applications of some nanomaterials (e.g., carbon-based nanoparticles, antibacterial nanoparticles, and metal oxide nanoparticles) in the following environments: (1) air (treatment of greenhouse gases, volatile organic compounds, and bioaerosols via adsorption, photocatalytic degradation, thermal decomposition, and air filtration processes), (2) soil (application of nanomaterials as amendment agents for phytoremediation processes and utilization of stabilizers to enhance their performance), and (3) water (removal of organic pollutants, heavy metals, pathogens through adsorption, membrane processes, photocatalysis, and disinfection processes).
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Affiliation(s)
- Rusul Khaleel Ibrahim
- Department of Civil Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Maan Hayyan
- Department of Civil Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia.
- University of Malaya Centre for Ionic Liquids (UMCiL), University of Malaya, 50603, Kuala Lumpur, Malaysia.
| | - Mohammed Abdulhakim AlSaadi
- University of Malaya Centre for Ionic Liquids (UMCiL), University of Malaya, 50603, Kuala Lumpur, Malaysia
- Nanotechnology & Catalysis Research Centre (NANOCAT), University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Adeeb Hayyan
- University of Malaya Centre for Ionic Liquids (UMCiL), University of Malaya, 50603, Kuala Lumpur, Malaysia
- Department of Chemical Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Shaliza Ibrahim
- Department of Civil Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
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Zhao H, Liu X, Cao Z, Zhan Y, Shi X, Yang Y, Zhou J, Xu J. Adsorption behavior and mechanism of chloramphenicols, sulfonamides, and non-antibiotic pharmaceuticals on multi-walled carbon nanotubes. JOURNAL OF HAZARDOUS MATERIALS 2016; 310:235-45. [PMID: 26937870 DOI: 10.1016/j.jhazmat.2016.02.045] [Citation(s) in RCA: 212] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 02/17/2016] [Accepted: 02/21/2016] [Indexed: 05/24/2023]
Abstract
The adsorption behavior of different emerging contaminants (3 chloramphenicols, 7 sulfonamides, and 3 non-antibiotic pharmaceuticals) on five types of multi-walled carbon nanotubes (MWCNTs), and the underlying factors were studied. Adsorption equilibriums were reached within 12h for all compounds, and well fitted by the Freundlich isotherm model. The adsorption affinity of pharmaceuticals was positively related to the specific surface area of MWCNTs. The solution pH was an important parameter of pharmaceutical adsorption on MWCNTs, due to its impacts on the chemical speciation of pharmaceuticals and the surface electrical property of MWCNTs. The adsorption of ionizable pharmaceuticals decreased in varying degrees with the increased ionic strength. MWCNT-10 was found to be the strongest adsorbent in this study, and the Freundlich constant (KF) values were 353-2814mmol(1-n)L(n)/kg, 571-618mmol(1-n)L(n)/kg, and 317-1522mmol(1-n)L(n)/kg for sulfonamides, chloramphenicols, and non-antibiotic pharmaceuticals, respectively. The different adsorption affinity of sulfonamides might contribute to the different hydrophobic of heterocyclic substituents, while chloramphenicols adsorption was affected by the charge distribution in aromatic rings via substituent effects.
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Affiliation(s)
- Heng Zhao
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Xue Liu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Zhen Cao
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Yi Zhan
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Xiaodong Shi
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Yi Yang
- Department of Geosciences, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Junliang Zhou
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Jiang Xu
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China.
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41
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Yu F, Li Y, Han S, Ma J. Adsorptive removal of antibiotics from aqueous solution using carbon materials. CHEMOSPHERE 2016; 153:365-85. [PMID: 27031800 DOI: 10.1016/j.chemosphere.2016.03.083] [Citation(s) in RCA: 254] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 03/15/2016] [Accepted: 03/16/2016] [Indexed: 05/04/2023]
Abstract
Antibiotics, an important type of environmental contamination, have attracted many researchers to the study of their removal from aqueous solutions. Adsorption technology is a fast, efficient, and economical physicochemical method that is extensively used in wastewater treatment. From original activated carbon and carbon nanotubes to the latest graphene-based materials, carbon-based materials have been widely used as highly effective adsorbents for contaminant removal from aqueous solution because of their large specific surface area, high porosity, and high reaction activity. In this article, adsorption removal methods for four major types of antibiotic (tetracyclines, sulfonamides, macrolides, and quinolones) are reviewed. We also provide an overview of the application development of carbon materials as adsorbents for antibiotic removal from aqueous solution. The most promising works are discussed, and the main challenges in preparing high-performance adsorbents and the development tendency of adsorbents are also analyzed. This work provides theoretical guidance for subsequent research in the design and modification of carbon materials for applications in the adsorption removal of antibiotics from aqueous solution.
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Affiliation(s)
- Fei Yu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Hai Quan Road, Shanghai 201418, China; State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yong Li
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Hai Quan Road, Shanghai 201418, China
| | - Sheng Han
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Hai Quan Road, Shanghai 201418, China.
| | - Jie Ma
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
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42
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Huang B, Xiong D, Zhao T, He H, Pan X. Adsorptive removal of PPCPs by biomorphic HAP templated from cotton. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 74:276-286. [PMID: 27387006 DOI: 10.2166/wst.2016.209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Biomorphic nano-hydroxyapatite (HAP) was fabricated by a co-precipitation method using cotton as bio-templates and employed in adsorptive removal of ofloxacin (OFL) and triclosan (TCS) that are two representative pharmaceuticals and personal care products (PPCPs). The surface area and porosity, crystal phase, functional group, morphology and micro-structure of the synthesized HAP were characterized by Brunauer-Emmett-Teller isotherm, X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron macroscopic and transmission electron microscopy. The effects of initial pH, ionic strength, initial concentration, contact time and temperature on the removal of PPCPs were studied in a batch experiment. The adsorption of OFL and TCS was rapid and almost accomplished within 50 min. Kinetic studies indicated that the adsorption process of OFL and TCS followed the pseudo-first-order and pseudo-second-order models, respectively. The Freundlich isotherm described the OFL adsorption process well but the adsorption of TCS fitted the Langmuir isotherm better. Thermodynamics and isotherm parameters suggested that both OFL and TCS adsorption were feasible and spontaneous. Hydrogen bond and Lewis acid-base reaction may be the dominating adsorption mechanism of OFL and TCS, respectively. Compared to other adsorbents, biomorphic HAP is environmentally friendly and has the advantages of high adsorption capacity, exhibiting potential application for PPCPs removal.
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Affiliation(s)
- Bin Huang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China E-mail:
| | - Dan Xiong
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China E-mail:
| | - Tingting Zhao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China E-mail:
| | - Huan He
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China E-mail:
| | - Xuejun Pan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, China E-mail:
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Kim M, Kim J, Kim JG, Hyun S. Factors influencing inapplicability of cosolvency-induced model on organic acid sorption onto humic substance from methanol mixture. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:15745-15754. [PMID: 26028349 DOI: 10.1007/s11356-015-4742-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 05/18/2015] [Indexed: 06/04/2023]
Abstract
Applicability of cosolvency model for describing the sorption of organic acids to humic substance was investigated by analyzing dataset of sorption (K m) and solubility (S m) of selected solutes (benzoic acid, 1-naphthoic acid, 2,4-dichlorophenoxyacetic acid, and 2,4,6-trichlorophenol (2,4,6-TCP)) as a function of pH(appCME) (apparent pH of liquid phase) and f c (methanol volume fractions). For all solutes, the K m decreased with f c with the K m reduction being less than the S m-based prediction. The slope of log K m-f c plot in the three organic carboxylic acids was well correlated with their cosolvency power, whereas the data of organic phenolic acid (2,4,6-TCP) was placed above the trend, indicating the different actions of functional groups. The occurrence of Ca(2+) bridge between carboxylate and negatively charged humic surface may explain this phenomenon. Normalizing the K m to the corresponding S m (α' = K m/S m) was not in unity over the pH(app)-f c range but decreased with f c, indicating a possible structural modification of sorption domain favoring extra sorption. For a given solute, the α' of neutral species was always greater than that of anionic species, showing that extra interaction will be likely at pH(app) <pK a - 2 when both solute and sorbent are uncharged. In short, the knowledge of cosolvent-enhanced solubility is incapable of describing sorption of organic acids by humic substance in methanol/water mixtures. Modification of humic structure and hydrophilic interaction (such as Ca(2+) bridge and same-charge repulsion) is considered a relevant process that possibly restricts the applicability of the cosolvency model.
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Affiliation(s)
- Minhee Kim
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 136-713, South Korea
| | - Juhee Kim
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 136-713, South Korea
| | - Jeong-Gyu Kim
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 136-713, South Korea
| | - Seunghun Hyun
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 136-713, South Korea.
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Patiño Y, Díaz E, Ordóñez S, Gallegos-Suarez E, Guerrero-Ruiz A, Rodríguez-Ramos I. Adsorption of emerging pollutants on functionalized multiwall carbon nanotubes. CHEMOSPHERE 2015; 136:174-180. [PMID: 25989605 DOI: 10.1016/j.chemosphere.2015.04.089] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 03/04/2015] [Accepted: 04/19/2015] [Indexed: 06/04/2023]
Abstract
Adsorption of three representative emerging pollutants - 1,8-dichlorooctane, nalidixic acid and 2-(4-methylphenoxy)ethanol- on different carbon nanotubes was studied in order to determine the influence of the morphological and chemical properties of the materials on their adsorption properties. As adsorbents, multiwall carbon nanotubes (MWCNTs) without functionalization and with oxygen or nitrogen surface groups, as well as carbon nanotubes doped with nitrogen were used. The adsorption was studied in aqueous phase using batch adsorption experiments, results being fitted to both Langmuir and Freundlich models. The adsorption capacity is strongly dependent on both the hydrophobicity of the adsorbates and the morphology of the adsorbents. Thermodynamic parameters were determined observing strong interactions between the aromatic rings of the emerging pollutant and the nitrogen modified adsorbents.
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Affiliation(s)
- Yolanda Patiño
- Department of Chemical and Environmental Engineering, University of Oviedo, Faculty of Chemistry, Julián Clavería s/n, 33006 Oviedo, Spain
| | - Eva Díaz
- Department of Chemical and Environmental Engineering, University of Oviedo, Faculty of Chemistry, Julián Clavería s/n, 33006 Oviedo, Spain
| | - Salvador Ordóñez
- Department of Chemical and Environmental Engineering, University of Oviedo, Faculty of Chemistry, Julián Clavería s/n, 33006 Oviedo, Spain.
| | - Esteban Gallegos-Suarez
- Instituto de Catálisis y Petroleoquímica, CSIC, c/Marie Curie No. 2, Cantoblanco, 28049 Madrid, Spain; Dpto. Química Inorgánica y Técnica, Fac. de Ciencias, UNED, C/ Senda del Rey n° 9, 28040 Madrid, Spain
| | - Antonio Guerrero-Ruiz
- Dpto. Química Inorgánica y Técnica, Fac. de Ciencias, UNED, C/ Senda del Rey n° 9, 28040 Madrid, Spain
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Peng X, Hu F, Lam FLY, Wang Y, Liu Z, Dai H. Adsorption behavior and mechanisms of ciprofloxacin from aqueous solution by ordered mesoporous carbon and bamboo-based carbon. J Colloid Interface Sci 2015; 460:349-60. [PMID: 26385593 DOI: 10.1016/j.jcis.2015.08.050] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 08/08/2015] [Accepted: 08/22/2015] [Indexed: 11/25/2022]
Abstract
The performances of ordered mesoporous carbon CMK-3 (OMC), bamboo-based carbon (BC), and these two kinds of adsorbents modified by thermal treatment in the ammonia atmosphere at high temperatures were evaluated for the removal fluoroquinolone antibiotic (ciprofloxacin) from aqueous solution. The adsorption behavior of ciprofloxacin (CIP) onto OMC and BC including adsorption isotherms and kinetics were investigated. The effect of various factors (pH, ionic strength and temperature) on the adsorption process was also investigated. The results demonstrated that the modified OMC and BC can further enhance the adsorption capacity due to introduce of alkaline nitrogen functionalities on the carbon surface. And their maximum adsorption capacity reached as high as 233.37mgg(-1) and 362.94mgg(-1) under the same experimental conditions, respectively. This is primarily ascribed to the positive effect of the surface basicity. The highest sorption was observed at the lowest solubility, which indicated that hydrophobic interaction was the dominant sorption mechanism for CIP uptake onto the four adsorbents. The adsorption data of antibiotics was analyzed by Langmuir and Freundlich model, and the better correlation was achieved by the Langmuir isotherm. The kinetic data showed that the adsorption of CIP onto OMC and BC follow closely the pseudo-second order model. The removal efficiency and adsorption capacity increased with increasing temperature. The results of thermodynamic study indicated that the adsorption process was a spontaneous and endothermic.
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Affiliation(s)
- Xiaoming Peng
- School of Civil Engineering and Architecture, East China Jiaotong University, Jiangxi 330013, China.
| | - Fengping Hu
- School of Civil Engineering and Architecture, East China Jiaotong University, Jiangxi 330013, China
| | - Frank L-Y Lam
- Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Sai Kung, Hong Kong Special Administrative Region; Department of Chemical Engineering, Technion Israel Institute of Technology, Haifa 3200003, Israel.
| | - Yajun Wang
- School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China
| | - Zhanmeng Liu
- School of Civil Engineering and Architecture, East China Jiaotong University, Jiangxi 330013, China
| | - Hongling Dai
- School of Civil Engineering and Architecture, East China Jiaotong University, Jiangxi 330013, China
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46
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Wu Q, Xiong ZH. Adsorption Behavior of Nitrofurantoin onto Multi-Walled Carbon Nanotubes and Magnetite (Fe3O4)-loaded Multi-Walled Carbon Nanotubes from Aqueous Solution. J DISPER SCI TECHNOL 2015. [DOI: 10.1080/01932691.2014.926251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Recent applications of carbon nanotube sorbents in analytical chemistry. J Chromatogr A 2014; 1357:110-46. [DOI: 10.1016/j.chroma.2014.05.035] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 05/12/2014] [Accepted: 05/13/2014] [Indexed: 01/10/2023]
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48
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Peng H, Li H, Wang C, Zhang D, Pan B, Xing B. Sorption and solubility of ofloxacin and norfloxacin in water-methanol cosolvent. CHEMOSPHERE 2014; 103:322-328. [PMID: 24388445 DOI: 10.1016/j.chemosphere.2013.12.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 11/23/2013] [Accepted: 12/01/2013] [Indexed: 06/03/2023]
Abstract
Prediction of the properties and behavior of antibiotics is important for their risk assessment and pollution control. Theoretical calculation was incorporated in our experimental study to investigate the sorption of ofloxacin (OFL) and norfloxacin (NOR) on carbon nanotubes and their solubilities in water, methanol, and their mixture. Sorption for OFL and NOR decreased as methanol volume fractions (fc) increased. But the log-linear cosolvency model could not be applied as a general model to describe the cosolvent effect on OFL and NOR sorption. We computed the bond lengths of possible hydrogen bonds between solute and solvent and the corresponding interaction energies using Density Functional Theory. The decreased OFL solubility with increased fc could be attributed to the generally stronger hydrogen bond between OFL and H2O than that between OFL and CH3OH. Solubility of NOR varied nonmonotonically with increasing fc, which may be understood from the stronger hydrogen bond of NOR-CH3OH than NOR-H2O at two important sites (-O18 and -O21). The interaction energies were also calculated for the solute surrounded by solvent molecules at all the possible hydrogen bond sites, but it did not match the solubility variations with fc for both chemicals. The difference between the simulated and real systems was discussed. Similar sorption but different solubility of NOR and OFL from water-methanol cosolvent suggested that sorbate-solvent interaction seems not control their sorption.
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Affiliation(s)
- Hongbo Peng
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan 650500, China
| | - Hao Li
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan 650500, China
| | - Chi Wang
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan 650500, China
| | - Di Zhang
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan 650500, China
| | - Bo Pan
- Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming, Yunnan 650500, China.
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States
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Li H, Zhang D, Han X, Xing B. Adsorption of antibiotic ciprofloxacin on carbon nanotubes: pH dependence and thermodynamics. CHEMOSPHERE 2014; 95:150-155. [PMID: 24094774 DOI: 10.1016/j.chemosphere.2013.08.053] [Citation(s) in RCA: 187] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 08/08/2013] [Accepted: 08/16/2013] [Indexed: 05/28/2023]
Abstract
The environmental risks of antibiotics have attracted increasing research attention, but their environmental behaviors remain unclear. In this study, functionalized carbon nanotubes (CNTs), namely, hydroxylized (MH), carboxylized (MC), graphitized multi-walled CNTs (MG) and single-walled CNTs (SW) were used as adsorbents and ciprofloxacin (CIP) as an adsorbate to investigate the effect of pH and temperature on sorption and desorption processes. Sorption isotherms of CIP were fitted well by Freundlich and Dubinin-Ashtakhov models. Highly nonlinear isotherms of CIP were observed, indicating the highly heterogeneous site energy distribution on CNTs. At all pHs, SW had the highest sorption for CIP due to its largest surface area among all CNTs. Sorption distinction between MH and MC was explained by π-π electron donor-acceptor interactions. For SW, CIP sorption was thermodynamically favorable and endothermic associated with an entropy driven process, while the reverse process occurred for MC and MG. The rearrangement of CNTs bundles/aggregates and covalent bond formation may be responsible for CIP desorption hysteresis on CNTs. Desorption of antibiotics from CNTs may lead to potential exposure, particularly under changing environmental conditions such as temperature and pH.
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Affiliation(s)
- Haibo Li
- College of Plant Sciences, Jilin University of Agricultural Science & Technology, Jilin 132101, China; Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
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Kim M, Han J, Hyun S. Anion exchange of organic carboxylate by soils responsible for positive Km-fc relationship from methanol mixture. CHEMOSPHERE 2013; 93:133-139. [PMID: 23732008 DOI: 10.1016/j.chemosphere.2013.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 04/11/2013] [Accepted: 05/02/2013] [Indexed: 06/02/2023]
Abstract
The cosolvency model was not applicable for predicting the sorption of organic carboxylic acids. The reason of inapplicability was investigated by analyzing the solubility (Sm) and sorption (Km) of benzoic acid, 2,4-dichlorophenoxyacetic acid (2,4-D), and 2,4,6-trichlorophenol (2,4,6-TCP). The Sm and Km by two iron-rich soils was measured as a function of methanol volume fraction (fc), electrolyte compositions, and pH(app). For 2,4,6-TCP, the Km of both neutral and anion species was well-explainable by the cosolvency model, exemplifying the knowledge of cosolvency power (σ) being sufficient to describe its sorption. However, for benzoic acid and 2,4-D, the Km of organic anions increased with fc, illustrating the organic carboxylate to be responsible for the deviation. The Sm of organic anions was not affected by the ionic valence (Ca(2+) vs. K(+)) of liquid phase. Among hydrophilic quantities of the 2,4-D sorption, the fraction of anion exchange increased with fc while the fraction of Ca-bridge decreased in the same range. Adding solvent in soil-water system is likely to render soil surface charge more positive, fortifying the anion exchange, but opposing the formation of Ca-bridging. Therefore, it can be concluded that the positive Km-fc relationship is due to the anion exchange of organic carboxylate with positively charged soil surface, whose contribution is >50% of overall sorption at solvent-free system and becomes greater with fc up to 82%.
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Affiliation(s)
- Minhee Kim
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul 136-713, Republic of Korea
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