|
1
|
Gaikwad RW, Sonawane AV, Hakke VS, Sonawane SH, Gaikwad MS, Lakhera SK, Babu G V, Warade AR, Urgunde AB, Sapkal VS. Application of apophyllite and thomsonite natural zeolite as modified adsorbents for the removal of zinc from acid mine drainage. CHEMOSPHERE 2024; 350:141095. [PMID: 38182086 DOI: 10.1016/j.chemosphere.2023.141095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 12/07/2023] [Accepted: 12/30/2023] [Indexed: 01/07/2024]
Abstract
Materials composed of natural zeolite have the potential to serve as highly effective adsorbents in the treatment of wastewater. The present study explores zeolite resin-based Apophyllite and Thomsonite as adsorbents for removing Zinc from acid mine drainage solution. The characteristics of the natural zeolites (Apophyllites and Thomsonite) are investigated using X-ray diffraction, Fourier-transform infrared spectroscopy and Field emission scanning electron microscopy analysis. The removal of Zinc from AMD is explored, and the influence of metal ion concentration, resin dose, and pH is investigated using a batch exchange resin-based experimental method. Maximum zinc removal occurs in the pH range of 2-6 with an initial zinc content of 50-250 mg/L and a resin dosage of 25-700 mg/L, indicating that the adsorption process is pH-dependent. Various isotherm models, including those proposed by Freundlich and Langmuir as well as Redlich-Peterson, Dubinin, and Temkin, are used to verify the results of the experimental research. All these isotherm models' constants are determined. Both resins showed different sorption efficiencies at different operating conditions. However, highest Zn removal efficiency of 86.2% was observed for the Thomsonite zeolite resin whereas Apophyllite zeolite resin showed maximum Zn uptake of 81.6%. Thus, Thomsonite was found to be an effective sorbent.
Collapse
Affiliation(s)
- Ravindra W Gaikwad
- Department of Chemical Engineering, Jawaharlal Nehru Engineering College, MGM University, Aurangabad, MS, 431003, India.
| | - Amol Vijay Sonawane
- Department of Chemical Engineering, National Institute of Technology Warangal, Telangana State, 506004, India.
| | - Vikas S Hakke
- Department of Chemical Engineering, National Institute of Technology Warangal, Telangana State, 506004, India.
| | - Shirish H Sonawane
- Department of Chemical Engineering, National Institute of Technology Warangal, Telangana State, 506004, India.
| | - Mahendra S Gaikwad
- Department of Chemical Engineering, National Institute of Technology Raipur, Raipur, Chhattisgarh, 492010, India
| | - Sandeep Kumar Lakhera
- Department of Physics and Nanotechnology, College of Engineering and Technology, SRM Institute of Science & Technology (SRMIST), Kattankulathur, Chengalpattu District, 603203, Tamil Nadu, India.
| | - Venu Babu G
- Shilpa Pharma Life Sciences Ltd, Deosugur, Dist Raicur, India
| | - A R Warade
- Department of Chemical Engineering, Pravara Rural Engineering College, Loni, MS, 413736, India.
| | - Ajay B Urgunde
- Department of Chemistry, Indian Institute of Technology, Jodhpur, Rajasthan, 34203, India.
| | - Vilas S Sapkal
- Department of Chemical Engineering, Jawaharlal Nehru Engineering College, MGM University, Aurangabad, MS, 431003, India.
| |
Collapse
|
|
2
|
Cheng H. One-Pot Preparation of HCPT@IRMOF-3 Nanoparticles for pH-Responsive Anticancer Drug Delivery. Molecules 2023; 28:7703. [PMID: 38067434 PMCID: PMC10707909 DOI: 10.3390/molecules28237703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 11/09/2023] [Accepted: 11/12/2023] [Indexed: 12/18/2023] Open
Abstract
Metal-organic frameworks (MOFs) are considered to be promising materials for drug delivery. In this work, a Zinc-based MOF nanocomposite IRMOF-3 was introduced as a drug carrier for 10-hydroxycamptothecine (HCPT). Without an extra drug-loading process, a nanoscale drug delivery material HCPT@IRMOF-3 was prepared via one-pot synthesis. The composition and structure of the material were investigated, and the drug release character was measured. Compared with preparing IRMOF-3 first and loading the drug, the one-pot-prepared HCPT@IRMOF-3 exhibited a higher drug-loading capacity. The material presented pH-responsive release. The HCPT release rate at pH 5.0 was significantly higher than that at pH 7.4. The cytotoxicity experiments showed that IRMOF-3 was non-toxic, and HCPT@IRMOF-3 exhibited notable cytotoxicity to Hela and SH-SY5Y cells. One-pot synthesis is a simple and rapid method for the preparation of an MOF drug delivery system, and IRMOF-3 can be potentially used in pH-responsive drug delivery systems.
Collapse
Affiliation(s)
- Hongda Cheng
- Department of Pharmacy, Zibo Vocational Institute, Zibo 255300, China
| |
Collapse
|