Optimizing Photocatalytic Lead Removal from Wastewater Using ZnO/ZrO2: A Response Surface Methodology Approach

被引:0
|
作者
Shakir, Hiba Abduladheem [1 ]
Alsaffar, May Ali [1 ]
Mageed, Alyaa K. [1 ]
Sukkar, Khalid A. [1 ]
Ghany, Mohamed A. Abdel [1 ]
机构
[1] Univ Technol Iraq, Dept Chem Engn, Baghdad 10066, Iraq
关键词
photocatalytic wastewater treatment; ZnO/ZrO2; nanocomposite; central composite design; lead degradation; AQUEOUS-SOLUTIONS; OPTIMIZATION; NANOPARTICLES;
D O I
10.3390/chemengineering8040072
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
One interesting method for environmental remediation is the use of ZnO/ZrO2 composites in the photocatalytic degradation of lead (Pb) in wastewater. Several studies have investigated different types of composites for the removal of heavy metals from wastewater. However, the efficiency of these composites in removing the heavy metals remains debatable. Hence, this study investigated the potential of using a ZnO/ZrO2 composite for the removal of Pb from wastewater. Response surface methodology (RSM) was utilized in this work to maximize the Pb photocatalytic removal over ZnO/ZrO2 in simulated wastewater. Based on a central composite design (CCD), the experimental design included adjusting critical process parameters such as catalyst dosage, initial Pb concentration, and pH. The ZnO/ZrO2 composite was synthesized using a physical mixing technique, and its physicochemical properties were studied by field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDS), Fourier transform infra-red (FTIR), and X-ray diffraction (XRD). Under visible light irradiation, photocatalytic Pb removal tests were carried out in a batch reactor. The findings showed that a ZnO/ZrO2 dose of 100 mg/L, a pH of 10, and an initial Pb content of 15 ppm were the optimal conditions for maximal Pb removal (above 91.2%). The actual Pb removal obtained from the experimental runs was highly correlated with that predicted using the RSM quadratic model. The usefulness of ZnO/ZrO2 composites for photocatalytic Pb removal is demonstrated in this work, which also emphasizes the significance of RSM in process parameter optimization for improved pollutant degradation. The models that have been proposed offer significant perspectives for the development and scalability of effective photocatalytic systems intended to remove heavy metals from wastewater.
引用
下载
收藏
页数:15
相关论文
共 50 条
  • [1] Optimizing the removal of Heavy Metals of an artificial wastewater by electrocoagulation using response surface methodology
    Suarez, A.
    Agudelo, N.
    Lozano, R.
    Contreras, P.
    NANOTECHNOLOGY 2011: BIO SENSORS, INSTRUMENTS, MEDICAL, ENVIRONMENT AND ENERGY, NSTI-NANOTECH 2011, VOL 3, 2011, : 597 - 599
  • [2] Optimizing the removal of Heavy Metals of an artificial wastewater by electrocoagulation using response surface methodology
    Suarez, A.
    Agudelo, N.
    Lozano, R.
    Contreras, P.
    CLEAN TECHNOLOGY 2011: BIOENERGY, RENEWABLES, STORAGE, GRID, WASTE AND SUSTAINABILITY, 2011, : 248 - 250
  • [3] OPTIMIZING THE ELECTROCHEMICAL PROCESS FOR COD REMOVAL OF DAIRY INDUSTRY WASTEWATER USING RESPONSE SURFACE METHODOLOGY
    Bagheri, Sakine
    Hassani, SeyedMasoud
    Bahlake, Ahmad
    Ghahremani, Hosein
    FRESENIUS ENVIRONMENTAL BULLETIN, 2013, 22 (03): : 659 - 664
  • [4] OPTIMIZATION OF PHOTOCATALYTIC ACTIVITY OF Mg/ZnO NANOPARTICLES IN THE REMOVAL OF A MODEL CONTAMINANT USING RESPONSE SURFACE METHODOLOGY
    Zarei, Nahide
    Behnajady, Mohammad Ali
    ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL, 2019, 18 (02): : 385 - 395
  • [5] Photocatalytic Removal of Antibiotics from Wastewater Using the CeO2/ZnO Heterojunction
    Apostolescu, Nicolae
    Farmus, Ramona Elena Tataru
    Harja, Maria
    Vizitiu, Mihaela Aurelia
    Cernatescu, Corina
    Cobzaru, Claudia
    Apostolescu, Gabriela Antoaneta
    MATERIALS, 2023, 16 (02)
  • [6] Optimizing removal of antiretroviral drugs from tertiary wastewater using chlorination and AI-based prediction with response surface methodology
    Kang, Zhenhua
    Duan, Lian
    Zahmatkesh, Sasan
    SCIENCE OF THE TOTAL ENVIRONMENT, 2024, 934
  • [7] Optimizing of heavy metals removal from car wash wastewater by chitosan-ceramic beads using response surface methodology
    Tajuddin, Mohd Farhan
    Al-Gheethi, Adel
    Mohamed, Radin
    Noman, Efaq
    Talip, Balkis A.
    Bakar, Asmah
    MATERIALS TODAY-PROCEEDINGS, 2020, 31 : 43 - 47
  • [8] Efficient Removal of Chromium and Lead from Water Solutions Using Forward Osmosis: A Response Surface Methodology Approach
    Marjan Hashemi
    Zohreh Naghdali
    Akbar Eslami
    Hamzeh Ali Jamali
    Water Conservation Science and Engineering, 2025, 10 (1)
  • [9] Removal of Turbidity from Domestic Wastewater Using Electrocoagulation: Optimization with Response Surface Methodology
    Million Ebba Bote
    Wendesen Mekonin Desta
    Chemistry Africa, 2022, 5 : 123 - 134
  • [10] Removal of Turbidity from Domestic Wastewater Using Electrocoagulation: Optimization with Response Surface Methodology
    Bote, Million Ebba
    Desta, Wendesen Mekonin
    CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY, 2022, 5 (01): : 123 - 134