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Umeh CT, Nduka JK, Mogale R, Akpomie KG, Okoye NH. Acid-activated corn silk as a promising phytosorbent for uptake of Malachite green and Cd (II) ion from simulated wastewater: equilibrium, kinetic and thermodynamic studies. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:1593-1610. [PMID: 38623998 DOI: 10.1080/15226514.2024.2339478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Malachite green (MG) dye and cadmium metal ion are toxic pollutants that should be removed from aqueous environment. The recent study aimed to examine the adsorption behavior of MG dye and Cd (II) from wastewater onto low-cost adsorbent prepared by activating corn silk with nitric acid (ACS) and characterized by SEM, FTIR, XRD, BET and TGA. The optimum MG and Cd (II) adsorption was observed at pH 7 and pH 9 and maximum uptake of both pollutants was at 0.5 g dosage, 60 mins contact time and 20 mg/L initial concentration. The retention of dye and metal ion by the studied adsorbent was best fit to Langmuir isotherm and Pseudo-second order kinetics. The maximum monolayer coverage capacity of ACS for MG dye and Cd (II) ion was 18.38 mg/g and 25.53 mg/g, respectively. Thermodynamic studies predicted a spontaneous reaction with exothermic process for MG dye whereas an endothermic and spontaneous process was confirmed for Cd ion based on estimated parameters. The adsorption mechanism of MG dye and Cd (II) uptake was by combination of electrostatic interaction, pore diffusion, ion exchange, pie-pie attraction, hydrogen bonding, and complexation. The adsorbed pollutants were effectively desorbed with significant regeneration efficiency after successive five cycles that proved the potential of low-cost biosorbent for selective sequestration of cationic dye and divalent metal ion from effluents.
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Affiliation(s)
- Chisom T Umeh
- Department of Chemistry, Nnamdi Azikiwe University, Awka, Anambra, Nigeria
| | | | - Refilwe Mogale
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
| | - Kovo G Akpomie
- Department of Chemistry, University of the Free State, Bloemfontein, South Africa
- Department of Pure & Industrial Chemistry, University of Nigeria, Nsukka, Nigeria
| | - Nkechi H Okoye
- Department of Chemistry, Nnamdi Azikiwe University, Awka, Anambra, Nigeria
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Panda A, Samal PP, Qaiyum MA, Dey B, Dey S. Think before throw: waste chili stalk powder for facile scavenging of cationic dyes from water. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:118. [PMID: 38183504 DOI: 10.1007/s10661-023-12243-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 12/14/2023] [Indexed: 01/08/2024]
Abstract
Chili stalk powder (CS), a non-conventional adsorbent, has been exercised for facile removal of cationic dyes from simulated and wastewater by batch technique. The prepared material has been characterized by Fourier-transform infrared spectroscopy (FTIR), Field emission scanning electron microscopy (FESEM), Brunauer-Emmett-Teller analysis (BET), powder X-ray diffraction (powder XRD), and pHZPC and tested best with methylene blue and crystal violet under ambient conditions. FTIR denotes the presence of carbonyl and polyphenolic groups, responsible for dye adsorption. BET surface area analysis evaluates the porous nature and specific surface area of the material, and powder XRD confirms its amorphous nature. The porous structure could be ascertained from the FESEM image, and energy dispersive X-ray analysis (EDX) confirms the elemental composition. The pH above pHzpc shows an increase in removal efficiency. The maximum adsorption capacities are 49.53 and 36.88 mg/g for methylene blue (MB) and crystal violet (CV) respectively. Linear as well as non-linear plots for kinetic and isotherm models were studied. Both dye uptake fits the linear plot of Langmuir adsorption isotherm (R2 = 0.999 and 0.995) and pseudo-second-order kinetics (R2 = 0.998 and 0.999). In the non-linear plot, the adsorption process for both dyes fit Langmuir (R2 = 0.999 for MB and R2 = 0.983 for CV) as well as Freundlich adsorption (R2 = 0.999 for MB and R2 = 0.994 for CV). 75.48% crystal violet (CV) and 73.35% methylene blue (MB) regeneration were successful in 1:1 methanol medium and reused for up to three cycles. The uptake mechanism is suggested to be a union of π-π stacking, electrostatic interaction, and weak hydrogen bonding. The material was tested with industrial effluent to prove its application in real wastewater treatment. Moreover, the material shows superior adsorption capacity than contemporary phytosorbents. To conclude, a zero-cost adsorbent using green chili stalk has been demonstrated for wastewater treatment.
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Affiliation(s)
- Ankita Panda
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, 835205, India
| | - Priyanka Priyadarsini Samal
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, 835205, India
| | - Md Atif Qaiyum
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, 835205, India
| | - Banashree Dey
- Department of Chemistry, The Graduate School College for Women, Jamshedpur, 831001, India
| | - Soumen Dey
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, 835205, India.
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Mukhlish MZB, Nazibunnesa S, Islam S, Al Mahmood AS, Uddin MT. Preparation of chemically and thermally modified water caltrop epicarp ( Trapa natans L.) adsorbent for enhanced adsorption of Ni(II) from aqueous solution. Heliyon 2023; 9:e21862. [PMID: 38027613 PMCID: PMC10661450 DOI: 10.1016/j.heliyon.2023.e21862] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 12/01/2023] Open
Abstract
The present study aims to prepare waste water caltrop (Trapanatans L.) epicarp (WCS)-based adsorbents such as raw WCS (WCS-Raw), citric acid-grafted WCS (WCS-CA), acrylamide-grafted WCS (WCS-AM), and calcined WCS (WCS-Si) for Ni(II) removal from aqueous solution in batch adsorption process. The physical and chemical properties of the prepared adsorbents were investigated by different characterization techniques such as scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, nitrogen adsorption-desorption analyses, and pH at the Point of Zero Charge (pHpzc) in order to assess the suitability and effectiveness of the adsorbents for the removal of Ni(II) by understanding their surface morphology, chemical composition, porosity, and surface charge properties. The experimental Ni(II) adsorption data followed both the Langmuir isotherm and the pseudo-second-order kinetic model suggesting the adsorption process on the prepared adsorbents is well-described by these models. The modified adsorbents WCS-CA, WCS-AM, and WCS-Si exhibited a maximum adsorption capacity of 52.08, 40.32, and 158.73 mg/g, respectively, while WCS-Raw had a capacity of 29.06 mg/g. The thermodynamic study revealed that the adsorption process was feasible, spontaneous, and endothermic. The desorption study demonstrated that the adsorbents could be reused for multiple cycles with minimal loss of activity. The present work evidenced the potential practical applicability and sustainability of the WCS-based adsorbents as promising adsorbents in treating and removing Ni(II) from wastewater.
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Affiliation(s)
- Muhammad Zobayer Bin Mukhlish
- Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | - Shekh Nazibunnesa
- Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | - Shariful Islam
- Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | - Abu Saleh Al Mahmood
- Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | - Md Tamez Uddin
- Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
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Bharadwaj B, Dutta S, Qaiyum MA, Samal PP, Dey B, Dey S. Pristine wild sugarcane ( Saccharum spontaneum) as a biosorbent for removal of methylene blue from wastewater: isotherm, kinetics and regeneration studies. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:684-698. [PMID: 37789562 DOI: 10.1080/15226514.2023.2260002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Saccharum spontaneum, popularly known as Kashful (KF) is a seasonal perennial grass with thin culms, mostly an abundantly growing shrub during the autumn season in southern Asia. It is used as no-cost scavenger to convincingly arrest methylene blue, a recalcitrant dye from colored effluent. FTIR, FESEM-EDX, and BET surface area characterize the material well whereas the surface activity was evaluated from zero-point charge (pHZPC = 6.720). FTIR highlights the presence of polyphenolic and carboxylate moieties. The surface texture is rod-like with intermittent non-homogeneous pores with occasional fractures. The equilibrium reaches within 60 min with the maximum adsorption capacity of 20.917 mg/g. The fibrous powder of kashful stalk (KFS) follows pseudo-second-order (R2 = 0.999 for linear and R2 = 0.985 for non-linear) kinetics and both Langmuir and Freundlich isotherm model (for linear, Langmuir R2=0.995; for non-linear, R2 = 0.994 for both Langmuir and Freundlich model). The uptake process was spontaneous (ΔG= -3.077 kJ/mol) and endothermic (ΔH = 17.815 kJ/mol). 1:1 methanol could regenerate the dye-loaded material in up to 55% and onward efficiency was conducive for three consecutive cycles. Industrial effluent analysis suggests a real-time removal of ∼55% in the first cycle. Saccharum spontaneum could be exercised to solve environmental problems related to colored water.
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Affiliation(s)
- Bidisha Bharadwaj
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Brambe, India
| | - Subhashri Dutta
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Brambe, India
| | - Md Atif Qaiyum
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Brambe, India
| | | | - Banashree Dey
- Department of Chemistry, The Graduate School College for Women Jamshedpur, Jamshedpur, India
| | - Soumen Dey
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Brambe, India
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Qaiyum MA, Samal PP, Dutta S, Dey B, Dey S. Non-conventional, burnt Shorea robusta leaf extract mediated green synthesis of zinc oxide nanoparticles and facile removal of eriochrome black T dye from water. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:594-607. [PMID: 37723603 DOI: 10.1080/15226514.2023.2256903] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
The present study evaluates the synthesis of zinc oxide nanoparticles (ZnO NPs) using water extract of Sal leaves (Shorea Robusta) for efficient removal of Eriochrome black-T from the water and wastewater. The material is characterized using FESEM, FTIR, EDX, pHzpc, XRD, BET, and TGA analysis. XRD confirmed the synthesis of ZnO with an average crystallite size of 35.24 nm a surface area of 95.939 m2/g and a pore volume of 0.280 cm3/g. The pHzpc of the material is 7.45. The study evaluates the effects of contact time (0-100 min), pH (3-10), concentration (10-50 mg/L), and temperature (298-328K). The Langmuir isotherm model (R2 = 0.993) and pseudo-second-order kinetic model (R2 = 0.998) were found to be the best-fit models. The maximum uptake capacity is 265.554 mg/g. The interaction is spontaneous (ΔG° -12.889 to-14.898 kJ/mol), endothermic ΔH° (4.290-14.216 kJ/mol) with an increase in spontaneity at the solid-liquid junction. The dye-loaded ZnO NPs were successfully regenerated in dilute NaOH solution and 1:1 methanol water, achieving regeneration efficiencies of 78% and 60%, respectively. The reusability of the ZnO NPs was ascertained for up to three consecutive cycles.
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Affiliation(s)
- Md Atif Qaiyum
- Environmental Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Brambe, India
| | - Priyanka Priyadarsini Samal
- Environmental Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Brambe, India
| | - Subhashri Dutta
- Environmental Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Brambe, India
| | - Banashree Dey
- Department of Chemistry, The Graduate School College for Women, Jamshedpur, India
| | - Soumen Dey
- Environmental Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Brambe, India
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Das S, Samal PP, Qaiyum MA, Dutta S, Dey B, Dey S. Neolamarckia cadamba (cadamba) waste pulp as a natural and techno-economic scavenger for methylene blue from aqueous solutions. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:208-218. [PMID: 37462946 DOI: 10.1080/15226514.2023.2232861] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
In this work, Neolamarckia cadamba (cadamba), also known as bur flower tree has been exercised to demonstrate as an excellent methylene blue scavenger from simulated as well as industrial wastewater. The particle morphology and structural insights were gained from FESEM, BET surface area, FTIR, and pHZPC. The adsorption behavior was mapped by different physico-chemical parameters such as contact time, pH, input concentration, and temperature. Experimental data reveal rapid adsorption, and >90% uptake was successful within the first 15 min and reaches equilibrium by 45 min (removal efficiency = 94.15%) at neutral pH. The maximum adsorption capacity was found to be 115.60 mg/g. The uptake process follows pseudo-second-order kinetics (R2 = 0.99), confirming a chemisorption process while the Langmuir model (R2 = 0.99) satisfactorily addresses the adsorption path. Thermodynamic parameters suggest a spontaneous, feasible, and exothermic process with increased entropy. Spent adsorbent could easily be regenerated in up to 74% using 1:1 MeOH/H2O with a potential of three-cycle use. Real-time efficacy has been established with an MB containing industrial effluent and up to 44.70% adsorption, which confirms the material's practical applicability. Statistical reliability was confirmed by the relative standard deviation. Altogether, the present material offers clean and green removal of methylene blue dye from versatile wastewater.
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Affiliation(s)
- Saismruti Das
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, Jharkhand, India
| | - Priyanka Priyadarsini Samal
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, Jharkhand, India
| | - Md Atif Qaiyum
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, Jharkhand, India
| | - Subhashri Dutta
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, Jharkhand, India
| | - Banashree Dey
- Department of Chemistry, The Graduate School College for Women, Jamshedpur, Jharkhand, India
| | - Soumen Dey
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, Jharkhand, India
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Samal PP, Qaiyum MA, Dutta S, Dey B, Dey S. Augmented dye eradication from wastewater using alkali-aided, reinforced waste acacia ( Acacia auriculiformis) leaves. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:52-62. [PMID: 37334896 DOI: 10.1080/15226514.2023.2220404] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
The present investigation demonstrates the augmented dye scavenging from wastewater using alkali-mutated acacia (Acacia auriculiformis) leaves powder. The material was synthesized by mild chemical activation by using 0.1 M sodium hydroxide as an activator under room temperature stirring for 3h and isolated as a dark brown powder. The material was characterized using FTIR, FESEM, XRD, and pHzpc; and tested successfully with crystal violet and methylene blue. While FTIR confirms the presence of polyphenolic and polysaccharide moieties, FESEM reveals unprecedented circular hollow pipe-like channels decorated in a highly ordered fashion, facing pores for optimum dye uptake. The adsorption is tunable with working pH, and the maximum adsorption capacities are 67.25 and 78.55 mg g-1 for CV and MB. Both adsorption process follows Langmuir isotherm (R2 = 0.994) and pseudo-2nd-order kinetics (R2 = 0.999). Thermodynamic analysis verifies a spontaneous process with an endothermic interaction beside an elevated degree of randomness. About 80% of the spent material could be regenerated using 1:1 methanol/water. Analysis of industrial effluent suggests 37% removal per cycle, with an operating ceiling of 95%. To wind up, due to huge availability, porous nature, and superior adsorption capacity over other phytosorbents, NaOH-activated acacia leaves could be considered as techno-economic and potential scavengers for sustainable water treatment.
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Affiliation(s)
- Priyanka Priyadarsini Samal
- Environmental Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Md Atif Qaiyum
- Environmental Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Subhashri Dutta
- Environmental Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Banashree Dey
- Department of Chemistry, The Graduate School College for Women Jamshedpur, Jamshedpur, India
| | - Soumen Dey
- Environmental Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
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Qaiyum MA, Sahu PR, Samal PP, Dutta S, Dey B, Dey S. Towards a win-win chemistry: extraction of C.I. orange from Kamala fruit ( Mallotus philippensis), and simultaneous exercise of its peels for the removal of Methylene Blue from water. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:907-916. [PMID: 36111428 DOI: 10.1080/15226514.2022.2119936] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Kamala fruit (Mallotus philippensis), hereinafter MP, has been simultaneously exercised for the extraction of a natural dye, C.I. orange and its peels were converted into an efficient adsorbent for the rapid removal of methylene blue (MB) dye from aqueous solutions. The material has been characterized by Fourier Transform Infra-red (FTIR),Field Emission Scanning Electron Microscopy- Electron dispersive spectroscopy (FESEM-EDS), Brunauer-Emmett-Teller (BET) surface area, and pHZPC. FTIR suggests the presence of polyphenolic moieties responsible for adsorption, whereas FESEM confirms the porous texture. Optimization of process variables such as contact time, pH, adsorbent dose, and temperature of operation indicates that the adsorption gets modulated by the pH, with a best at 11. The Freundlich model (R2 = 0.994), and pseudo-second-order kinetics (R2 = 0.999) best describe the adsorption pathway. Dilute hydrochloric acid is sufficient to induce >66% regeneration, which ensures reusability. With the maximal uptake for MB is 30.2 mg/g at ambient conditions, the superiority over the existing materials has been confirmed. Treatment of dye containing industrial effluent suggests about a 50% reduction in one cycle. It can be concluded that both-way benefits, namely natural dye extraction and preparation of a peel-based adsorbent for methylene blue removal from aqueous solution, can be achieved using the kamala fruit peels.
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Affiliation(s)
- Md Atif Qaiyum
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | | | | | - Subhashri Dutta
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Banashree Dey
- Department of Chemistry, The Graduate School College for Women, Jamshedpur, India
| | - Soumen Dey
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
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Samal PP, Kumari J, Qaiyum MA, Mohanta J, Kumari R, Dutta S, Dey B, Dey S. Thiosulfate impregnated spent tea leaves for the remarkable uptake of malachite green. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:1413-1422. [PMID: 36579476 DOI: 10.1080/15226514.2022.2161465] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Herein we demonstrate an enhanced performance of acid-assisted thiosulfate-impregnated spent/waste tea leaves (TWTL) for the removal of malachite green (MG) from water by batch mode. The material was characterized by pHZPC, FTIR, powder XRD, SEM, and proximate analysis. FTIR suggests the presence of polyphenolic moieties whereas a lignocellulosic peak was observed in powder XRD. SEM image shows a grafted surface texture with intermittent blocks, which upon dye uptake becomes somewhat condensed. Under optimized conditions, the highest removal efficiency of 126.8 mg/g was achieved at pH 7. A fast adsorption process was noticed with >97% removal within the first 10 min. Adsorption follows pseudo-second-order kinetics (R2 = 0.999) and the Langmuir model (R2 = 0.999). The material can be regenerated by dilute hydrochloric acid and can be reused for up to four cycles. Treatment of industrial effluent was successful in up to 47.56%. Our results highlight the potential of thiosulfate-treated spent tea leaves as a choice for the efficient removal of malachite green from water.
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Affiliation(s)
| | - Jyoti Kumari
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Md Atif Qaiyum
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Jhilirani Mohanta
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Roshni Kumari
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Subhashri Dutta
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Banashree Dey
- Department of Chemistry, The Graduate School College for Women Jamshedpur, Jamshedpur, India
| | - Soumen Dey
- Environment Protection Laboratory, Department of Chemistry, Central University of Jharkhand, Ranchi, India
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Mahato R, Qaiyum MA, Samal PP, Dutta S, Dey B, Dey S. Exploring the promising potential of fallen bamboo leaves ( Bambusa bambos) for efficient removal of crystal violet from wastewater. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:1042-1051. [PMID: 36168892 DOI: 10.1080/15226514.2022.2125498] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Fallen bamboo leaves (Bambusa bambos), hereinafter BL have been designed to be transformed into an efficient and sustainable adsorbent for the removal of crystal violet (CV) dye from wastewater with up to 95% scavenging ability. BL have been characterized by Fourier transform infrared (FTIR) spectra, field emission scanning electron microscopy (FESEM), and zero point charge (pHzpc). The maximum adsorption capacity is 30 mg/g at pH 10. Physico-chemical parameters have been investigated concerning pH, contact time, initial concentration, and coexistent ions. Pseudo-second-order kinetics is followed best (R2 =0.999) signifying a chemisorption pathway. Besides, intra-particle diffusion plays a governing role in the film diffusion of crystal violet into the core of the adsorbent. Langmuir isotherm model fits best (R2=0.972) suggesting a uniform, monolayer, and homogeneous adsorption. Regeneration was successful with methanol (65%) and reusability was tested for three cycles and was found to retain activity up to 80%. Analysis of CV containing industrial effluent suggests that a 36.8% reduction is possible with BL. The effect of co-existent ions suggests little influence on the adsorption. Compared to other contemporary and relevant adsorbents, it can be concluded that BL can be exercised for the sustainable decontamination of CV-containing wastewater.
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Affiliation(s)
- Ruma Mahato
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Md Atif Qaiyum
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | | | - Subhashri Dutta
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Banashree Dey
- Department of Chemistry, The Graduate School College for Women, Jamshedpur, India
| | - Soumen Dey
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
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Rout A, Qaiyum MA, Samal PP, Dutta S, Dey B, Dey S. Brinjal (Solanum melongena) stalk waste as an effective scavenger for Eriochrome Black-T from water and wastewater: an approach towards waste to best. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:956-964. [PMID: 36129346 DOI: 10.1080/15226514.2022.2123445] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Stalks of brinjal (Solanum melongena), hereinafter SM, have been exercised as an efficient and sustainable adsorbent material for the elimination of Eriochrome Black-T (EBT) from an aqueous solution. The material was characterized by FTIR, FESEM, BET surface area, pHpzc, and proximate analysis. FTIR spectrum suggests the presence of polyphenolic moieties, responsible for successful dye binding. FESEM images show an unprecedented octopus-like texture containing micropores. The central head transforms the architecture of a flower. The evaluated BET surface area of 10.042 m2/g and pore volume 1.055 × 10-2 cm3/g suggest a porous material. The pHpzc of the material was evaluated to be 7.05, and under optimized conditions, the maximum adsorption capacity was found 52.631 mg/g at pH 7. The operational parameters were studied concerning contact time (0-90 min), pH (5-11), initial concentration (10-40 mg/L), and interfering ions (PO4-3, AsO4-3, Hg+2, Pb+2). Adsorption follows Langmuir isotherm best (R2 = 0.996), and pseudo-second-order kinetics (R2 = 0.991) indicate a monolayer and homogeneous adsorption. 83% regeneration was successful with 0.1(M) sodium hydroxide solution. The material can be reused for up to three cycles with 90% efficiency retention. Analysis of EBT containing industrial effluent indicates that 52.62% of EBT can be removed.
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Affiliation(s)
- Amisha Rout
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Md Atif Qaiyum
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | | | - Subhashri Dutta
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
| | - Banashree Dey
- Department of Chemistry, The Graduate School College for Women, Jamshedpur, India
| | - Soumen Dey
- Department of Chemistry, Central University of Jharkhand, Ranchi, India
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Adsorptive Removal of Malachite Green from Water Using Ethylenediamine Fabricated Ni–Cr Bimetallic Composite. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02270-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Phytofabrication of titanium-silver alloy nanoparticles (Ti-AgNPs) by Cola nitida for biomedical and catalytic applications. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Nguyen DTC, Tran TV, Kumar PS, Din ATM, Jalil AA, Vo DVN. Invasive plants as biosorbents for environmental remediation: a review. ENVIRONMENTAL CHEMISTRY LETTERS 2022; 20:1421-1451. [PMID: 35018167 PMCID: PMC8734550 DOI: 10.1007/s10311-021-01377-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 12/17/2021] [Indexed: 05/25/2023]
Abstract
Water contamination is an environmental burden for the next generations, calling for advanced methods such as adsorption to remove pollutants. For instance, unwanted biowaste and invasive plants can be converted into biosorbents for environmental remediation. This would partly solve the negative effects of invasive plants, estimated at 120 billion dollars in the USA. Here we review the distribution, impact, and use of invasive plants for water treatment, with emphasis on the preparation of biosorbents and removal of pollutants such as cadmium, lead, copper, zinc, nickel, mercury, chromate, synthetic dyes, and fossil fuels. Those biosorbents can remove 90-99% heavy metals from aqueous solutions. High adsorption capacities of 476.190 mg/g for synthetic dyes and 211 g/g for diesel oils have been observed. We also discuss the regeneration of these biosorbents.
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Affiliation(s)
- Duyen Thi Cam Nguyen
- Institute of Environmental Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414 Vietnam
| | - Thuan Van Tran
- Institute of Environmental Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414 Vietnam
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, 81310 Johor Bahru, Johor Malaysia
| | - Ponnusamy Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110 India
| | - Azam Taufik Mohd Din
- School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang Malaysia
| | - Aishah Abdul Jalil
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, UTM Johor Bahru, 81310 Johor Bahru, Johor Malaysia
- Centre of Hydrogen Energy, Institute of Future Energy, UTM Johor Bahru, 81310 Johor Bahru, Johor Malaysia
| | - Dai-Viet N. Vo
- Institute of Environmental Technology and Sustainable Development, Nguyen Tat Thanh University, 298-300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414 Vietnam
- School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 Nibong Tebal, Penang Malaysia
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