Khalid Umar

ORCID: 0000-0002-2081-316X
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About
Contact & Profiles
Research Areas
  • TiO2 Photocatalysis and Solar Cells
  • Electrochemical sensors and biosensors
  • Microbial Fuel Cells and Bioremediation
  • Advanced Photocatalysis Techniques
  • Supercapacitor Materials and Fabrication
  • Conducting polymers and applications
  • Electrochemical Analysis and Applications
  • Graphene and Nanomaterials Applications
  • Nanomaterials for catalytic reactions
  • Reservoir Engineering and Simulation Methods
  • Oil and Gas Production Techniques
  • Nanoparticles: synthesis and applications
  • Analytical Chemistry and Sensors
  • Graphene research and applications
  • Water Quality Monitoring and Analysis
  • Carbon and Quantum Dots Applications
  • Advanced Sensor and Energy Harvesting Materials
  • Hydraulic Fracturing and Reservoir Analysis
  • Catalytic Processes in Materials Science
  • Advanced oxidation water treatment
  • Gas Sensing Nanomaterials and Sensors
  • Analytical chemistry methods development
  • Advancements in Battery Materials
  • Lignin and Wood Chemistry
  • Polymer composites and self-healing

Universiti Sains Malaysia
2019-2024

Yangzhou University
2024

Ayub Medical College
2024

Abbott (Sweden)
2024

King Saud University
2021-2023

Swedish University of Agricultural Sciences
2023

Bayero University Kano
2023

Pertamina (Indonesia)
2021-2022

Hospital Universiti Sains Malaysia
2021-2022

University of Technology Malaysia
2014-2018

In this work, a polypyrrole-polyethyleneimine (PPy-PEI) nano-adsorbent was successfully synthesized for the removal of methylene blue (MB) from an aqueous solution. Synthetic dyes are among most prevalent environmental contaminants. A new conducting polymer-based adsorbent called produced using ammonium persulfate as oxidant. The PEI hyper-branched polymer with terminal amino groups added to PPy provide more effective chelating sites dyes. An efficient dye solution demonstrated batch...

10.3390/polym14163362 article EN Polymers 2022-08-17

A wide variety of pollutants are discharged into water bodies like lakes, rivers, canal, etc. due to the growing world population, industrial development, depletion resources, improper disposal agricultural and native wastes. Water pollution is becoming a severe problem for whole from small villages big cities. The toxic metals organic dyes considered as significant contaminants that cause hazards human beings aquatic life. microbial fuel cell (MFC) most promising, eco-friendly, emerging...

10.3390/catal10080819 article EN Catalysts 2020-07-22

Benthic microbial fuel cells (BMFCs) are considered to be one of the eco-friendly bioelectrochemical cell approaches nowadays. The utilization waste materials in BMFCs is generate energy and concurrently bioremediate toxic metals from synthetic wastewater, which an ideal approach. use novel electrode material natural organic as substrates can minimize present challenges BMFCs. study focused on cellulosic derived graphene-polyaniline (GO-PANI) composite anode fabrication order improve...

10.3390/polym13010135 article EN Polymers 2020-12-30

Energy and water storage are a global challenge due to various factors such as ecological changes, increasing population, demand for energy at both commercial/domestic level, high material cost.To overcome these problems, microbial fuel cells (MFCs) is considered an emerging novel technology where one side it can generate electricity on the other hand also exhibits better removal efficiency of different pollutants from wastewater.In this technology, MFCs use natural waste materials produce...

10.5004/dwt.2021.26737 article EN cc-by-nc-nd Desalination and Water Treatment 2021-02-01

Although regarded as environmentally stable, bioelectrochemical fuel cells or, microbial (MFCs) continue to face challenges with sustaining electron transport. In response, we examined the performance of two graphene composite-based anode electrodes-graphene oxide (GO) and GO-polymer-metal (GO-PANI-Ag)-prepared from biomass used in MFCs. Over 7 days operation, GO energy efficiency peaked at 1.022 mW/m2 GO-PANI-Ag 2.09 mW/m2. We also tested how well MFCs could remove heavy metal ions...

10.3390/polym14040845 article EN Polymers 2022-02-21
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