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Goswami S, Dutta D, Lalhmunsiama, Dubey R, Tiwari D, Jung J. Highly efficient hydrophobic nanocomposite in the decontamination of micropollutants and bacteria from aqueous wastes: A sustainable approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172546. [PMID: 38636858 DOI: 10.1016/j.scitotenv.2024.172546] [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: 03/09/2024] [Revised: 04/13/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
Micro-pollutants (specifically antibiotics and personal care products) and potential bacterial contamination pose a severe threat to human health and marine life. The study derives indigenous novel fibrous hydrophobic nanocomposite, efficient in decontaminating the micro-pollutants (tetracycline (TC) and bisphenol A (BPA)) and potential pathogens (S. pyogenes and E. coli) from aqueous wastes. A facile method synthesizes the fibrous attapulgite (ATP)- poly(4-vinylpyridine-co-styrene) (PVP) framework decorated in situ with the Ag0 nanoparticles (ATP@PVP/Ag0). A greener method using the Artocarpus heterophyllus leaf extract derives the Ag0(NPs). Various analytical methods extensively characterize the materials. A comprehensive study that includes pH, concentration, background electrolytes, and ionic strength reveals the sorptive removal insights of TC and BPA utilizing the ATP@PVP solid. The elimination of tetracycline (TC) and bisphenol A (BPA) agrees well with the pseudo-second-order kinetics. The pH 3.07 and 6.06 favor removing TC and BPA with the capacity of 10.86 mg/g and 17.36 mg/g at 25 °C. The hydrogen bonding and hydrophobic interactions predominate the sorption mechanism, and the material shows remarkable stability and reusability in repeated sorption/desorption operations. Similarly, the natural water implications and flow-bed system show fair applicability of solid in decontaminating the TC and BPA in an aqueous medium. Further, the material ATP@PVP/Ag0 exhibits very high inhibition of potential pathogens S. pyogenes and E. coli and optimizes the solid dose and solution pH.
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Affiliation(s)
- Swagata Goswami
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, India
| | - Dhiraj Dutta
- DRL, Post Bag No 02, Tezpur, Assam 784001, India
| | - Lalhmunsiama
- Department of Industrial Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, India
| | - Rama Dubey
- DRL, Post Bag No 02, Tezpur, Assam 784001, India
| | - Diwakar Tiwari
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, India.
| | - Jinho Jung
- Division of Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
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Li N, Pang Y, Wang W, Yan X, Jiang P, Yu S. Performance and mechanism of graphene oxide removal from aqueous solutions by calcite: adsorption isotherms, thermodynamics, and kinetics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8519-8537. [PMID: 38180648 DOI: 10.1007/s11356-023-31692-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/19/2023] [Indexed: 01/06/2024]
Abstract
The flow of graphene oxide (GO) into natural water systems can adversely affect water environments and ecosystems. In this study, the adsorption effect of calcite on GO under different conditions was studied using calcite as adsorbent. Meanwhile, characterized by a combination of microscopic experiments, including SEM, TEM, XRD, FTIR, Raman, XPS, and AFM, additional research on the performance and the mechanism of GO sorption by calcite was conducted. The findings indicated that the highest adsorption efficiency was observed at a temperature of 303 K, pH 3, a mass of 90 mg of calcite, with an initial concentration of 60 mg L-1 GO, resulting in a 95% adsorption rate. The adsorption isotherm conformed to the model of Langmuir and Temkin, and it is a heat absorption process dominated by monolayer adsorption. The thermodynamic analysis showed that the adsorption was spontaneous and heat-absorbing. The adsorption kinetics conformed to the pseudo-second-order kinetic model, and the sorption procedure is chemisorption. In conclusion, calcite has a good sorption capacity for GO, which can provide a reference for the removal of GO in the aqueous environment.
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Affiliation(s)
- Na Li
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China
| | - Yingdi Pang
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China
| | - Wei Wang
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China.
| | - Xinyu Yan
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China
| | - Ping Jiang
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China
| | - Shimeng Yu
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, China
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Ibrahim MIM, Awad EAM, Dahdouh SMM, El-Etr WMT, Marey SA, Hatamleh AA, Mahmood M, Elrys AS. Exploring the Influence of Chemical Conditions on Nanoparticle Graphene Oxide Adsorption onto Clay Minerals. Molecules 2023; 28:6162. [PMID: 37630414 PMCID: PMC10458753 DOI: 10.3390/molecules28166162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/11/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
High concentrations of graphene oxide (GO), a nanoparticle substance with rapid manufacturing development, have the ability to penetrate the soil surface down to the mineral-rich subsurface layers. The destiny and distribution of such an unusual sort of nanomaterial in the environment must therefore be fully understood. However, the way the chemistry of solutions impacts GO nanoparticle adsorption on clay minerals is still unclear. Here, the adsorption of GO on clay minerals (e.g., bentonite and kaolinite) was tested under various chemical conditions (e.g., GO concentration, soil pH, and cation valence). Non-linear Langmuir and Freundlich models have been applied to describe the adsorption isotherm by comparing the amount of adsorbed GO nanoparticle to the concentration at the equilibrium of the solution. Our results showed fondness for GO in bentonite and kaolinite under similar conditions, but the GO nanoparticle adsorption with bentonite was superior to kaolinite, mainly due to its higher surface area and surface charge. We also found that increasing the ionic strength and decreasing the pH increased the adsorption of GO nanoparticles to bentonite and kaolinite, mainly due to the interaction between these clay minerals and GO nanoparticles' surface oxygen functional groups. Experimental data fit well to the non-linear pseudo-second-order kinetic model of Freundlich. The model of the Freundlich isotherm was more fitting at a lower pH and higher ionic strength in the bentonite soil while the lowest R2 value of the Freundlich model was recorded at a higher pH and lower ionic strength in the kaolinite soil. These results improve our understanding of GO behavior in soils by revealing environmental factors influencing GO nanoparticle movement and transmission towards groundwater.
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Affiliation(s)
- Marwa I. M. Ibrahim
- Department of Soil Science, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
- Department of Soil Physics and Chemistry, Soil, Water and Environment Research Institute (SWERI), The Agricultural Research Center (ARC), Giza 12619, Egypt
| | - Elsayed A. M. Awad
- Department of Soil Science, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Salah M. M. Dahdouh
- Department of Soil Science, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Wafaa M. T. El-Etr
- Department of Soil Physics and Chemistry, Soil, Water and Environment Research Institute (SWERI), The Agricultural Research Center (ARC), Giza 12619, Egypt
| | | | - Ashraf Atef Hatamleh
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Mohsin Mahmood
- Center for Eco-Environment Restoration Engineering of Hainan Province, College of Ecology and Environment, Hainan University, Haikou 570228, China
| | - Ahmed S. Elrys
- Department of Soil Science, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
- Liebig Centre for Agroecology and Climate Impact Research, Justus Liebig University, 35390 Giessen, Germany
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Jiang P, Zhou G, Li C, Yu Y, Zhou L, Kang H. Performance and mechanism of GO removal by gypsum from aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:47052-47064. [PMID: 36732452 DOI: 10.1007/s11356-023-25473-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 01/17/2023] [Indexed: 02/04/2023]
Abstract
The widespread production and application of graphene oxide (GO) may lead to its dispersion throughout natural water systems, with potential negative effects on living organisms and the ecological environment. This study used gypsum (G) as an adsorbent and examined different conditions (pH, adsorbent dosage, GO initial concentration) for the removal effect of GO by G. The results showed the best adsorption effect for a solution pH of 8.0, gypsum dosage of 60 mg, initial GO concentration of 80 mg·L-1, and temperature of 303 K; at this time, the maximum removal rate of graphene oxide by gypsum was 93.3%. It could be obtained by isotherm and thermodynamic analysis that the GO adsorption by gypsum conforms to the Langmuir isotherm model, it does not easily occur in high-temperature environments, and is a spontaneous exothermic process. In addition, experiments such as SEM, AFM, TGA, XRD, XPS, FTIR, Raman, and Zeta were used to adsorb graphene oxide by gypsum composites (G/GO), through which the mineral interactions with graphene oxides were microscopically characterized. The impact on the adsorption properties of contaminants provides new insights into contaminant removal by gypsum.
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Affiliation(s)
- Ping Jiang
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Guanzhong Zhou
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Cuihong Li
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Yanfei Yu
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Lin Zhou
- School of Civil Engineering, Shaoxing University, Shaoxing, 312000, Zhejiang, China
| | - Haibo Kang
- School of Civil Engineering, College of Transportation Science & Engineering, Nanjing Tech University, Nanjing, 210009, China.
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