Khalid Umar
About
Khalid Umar is a scholar working on Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment and Materials Chemistry.
According to data from OpenAlex, Khalid Umar has authored 85 papers receiving a total of 5.3k indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Electrical and Electronic Engineering, 22 papers in Renewable Energy, Sustainability and the Environment and 18 papers in Materials Chemistry. Recurrent topics in Khalid Umar's work include Advanced Photocatalysis Techniques (17 papers), Electrochemical sensors and biosensors (16 papers) and TiO2 Photocatalysis and Solar Cells (16 papers). Khalid Umar is often cited by papers focused on Advanced Photocatalysis Techniques (17 papers), Electrochemical sensors and biosensors (16 papers) and TiO2 Photocatalysis and Solar Cells (16 papers). Khalid Umar collaborates with scholars based in Malaysia, India and Saudi Arabia. Khalid Umar's co-authors include Mohamad Nasir Mohamad Ibrahim, Asim Ali Yaqoob, Tabassum Parveen, Naseem Akhtar, Muhammad Izzuddin Syakir Ishak, Showkat Ahmad Bhawani, Akil Ahmad, Hilal Ahmad, Mohammad Oves and Chandra Kant Katiyar and has published in prestigious journals such as Journal of Hazardous Materials, Journal of Cleaner Production and Scientific Reports.
In The Last Decade
Khalid Umar
82 papers receiving 5.1k citations
Hit Papers
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late) cites · hero ref
| Name | h | Career | Trend | Papers | Cites | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| Khalid Umar Malaysia | 36 | 1.7k | 1.1k | 988 | 968 | 927 | 85 | 5.3k | ||
| Akil Ahmad Saudi Arabia | 40 | 1.4k 0.8× | 1.1k 1.0× | 853 0.9× | 1.0k 1.1× | 1.4k 1.5× | 163 | 6.0k | ||
| Javed Alam Saudi Arabia | 37 | 964 0.6× | 1.2k 1.1× | 406 0.4× | 1.3k 1.3× | 1.3k 1.4× | 129 | 4.4k | ||
| Huazhang Zhao China | 41 | 839 0.5× | 1.1k 1.0× | 1.0k 1.0× | 1.2k 1.2× | 2.4k 2.5× | 154 | 5.6k | ||
| N. Balasubramanian India | 40 | 1.4k 0.8× | 1.2k 1.1× | 300 0.3× | 1.1k 1.2× | 2.0k 2.1× | 297 | 5.9k | ||
| Juan Xu China | 43 | 992 0.6× | 1.6k 1.5× | 687 0.7× | 868 0.9× | 1.8k 1.9× | 126 | 6.0k | ||
| Yuanpeng Wang China | 44 | 2.1k 1.2× | 418 0.4× | 562 0.6× | 1.8k 1.8× | 1.2k 1.3× | 158 | 6.9k | ||
| Jun Cheng China | 49 | 1.6k 0.9× | 689 0.6× | 681 0.7× | 2.4k 2.5× | 530 0.6× | 279 | 7.8k | ||
| Titus A.M. Msagati South Africa | 41 | 1.7k 1.0× | 709 0.6× | 199 0.2× | 1.3k 1.3× | 1.7k 1.9× | 296 | 7.4k | ||
| Wenhong Fan China | 39 | 2.0k 1.2× | 570 0.5× | 365 0.4× | 974 1.0× | 1.1k 1.2× | 160 | 5.7k | ||
| Miroslav Černík Czechia | 42 | 2.1k 1.2× | 805 0.7× | 415 0.4× | 2.6k 2.7× | 2.4k 2.6× | 192 | 7.6k |
Countries citing papers authored by Khalid Umar
Since
Specialization
Citations
This map shows the geographic impact of Khalid Umar's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Khalid Umar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Khalid Umar more than expected).
Fields of papers citing papers by Khalid Umar
Since
Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences
This network shows the impact of papers produced by Khalid Umar. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Khalid Umar. The network helps show where Khalid Umar may publish in the future.
Co-authorship network of co-authors of Khalid Umar
This figure shows the co-authorship network connecting the top 25 collaborators of Khalid Umar. A scholar is included among the top collaborators of Khalid Umar based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Khalid Umar. Khalid Umar is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
1.
Umar, Khalid, et al.. (2025). Comprehensive Exploration of Photocatalytic Degradation: Eradication of Various Dye Classes Using Elemental-Doped and Graphene-Interfaced Semiconductor Nanocomposites in a Sustainable Framework. Catalysis Letters. 155(5).
2.
Umar, Khalid, et al.. (2025). Citrus aurantiifolia Peel-Facilitated Synthesis of Zinc Oxide, Interfaced with Biomass-Assisted Graphene Oxide for Enhanced Photocatalytic Degradation of Dye. Catalysts. 15(9). 874–874.
3.
Umar, Khalid, et al.. (2025). A novel bio-facilitated synthesis of GO/ZnO/Ag nanocomposite via Citrulline Lanatus and OPEFB for enhanced photocatalytic degradation of imidacloprid: Kinetics, mechanism and byproduct analysis. Journal of Water Process Engineering. 72. 107603–107603.
4.
Mustafa, Jawed, et al.. (2024). Inorganic Nitrate Determination Employing Co(II) Complex Potentiometry. Science of Advanced Materials. 16(5). 606–613.
5.
Khan, Altaf, Manar Fawzi Bani Mfarrej, Fohad Mabood Husain, et al.. (2024). Acalypha indica aqueous leaf extract as potential nematicide against the root-knot nematode, Meloidogyne incognita : in vitro and molecular docking studies. Cogent Food & Agriculture. 10(1).
6.
Yaqoob, Asim Ali, Nabil Al‐Zaqri, Muhammad Alamzeb, et al.. (2023). Bioenergy Generation and Phenol Degradation through Microbial Fuel Cells Energized by Domestic Organic Waste. Molecules. 28(11). 4349–4349.
7.
Aleid, Ghada Mohamed, Anoud Saud Alshammari, Fida Hussain, et al.. (2023). Advancement in Microbial Fuel Cells Technology by Using Waste Extract as an Organic Substrate to Produce Energy with Metal Removal. Processes. 11(8). 2434–2434.
8.
Ali, Syed Ghazanfar, Mohammad Jalal, Hilal Ahmad, et al.. (2022). Biosynthesis of Gold Nanoparticles and Its Effect against Pseudomonas aeruginosa. Molecules. 27(24). 8685–8685.
9.
Ali, Syed Ahmad, Mohammad Jalal, Hilal Ahmad, et al.. (2022). Green Synthesis of Silver Nanoparticles from Camellia sinensis and Its Antimicrobial and Antibiofilm Effect against Clinical Isolates. Materials. 15(19). 6978–6978.
10.
Yaqoob, Asim Ali, Albert Serrà, Showkat Ahmad Bhawani, et al.. (2022). Utilizing Biomass-Based Graphene Oxide–Polyaniline–Ag Electrodes in Microbial Fuel Cells to Boost Energy Generation and Heavy Metal Removal. Polymers. 14(4). 845–845.
11.
Birniwa, Abdullahi Haruna, Habibun Nabi Muhammad Ekramul Mahmud, Shehu Sa’ad Abdullahi, et al.. (2022). Adsorption Behavior of Methylene Blue Cationic Dye in Aqueous Solution Using Polypyrrole-Polyethylenimine Nano-Adsorbent. Polymers. 14(16). 3362–3362.
12.
Qutub, Nida, Preeti Singh, Suhail Sabir, et al.. (2022). Synthesis of Polyaniline Supported CdS/CdS-ZnS/CdS-TiO2 Nanocomposite for Efficient Photocatalytic Applications. Nanomaterials. 12(8). 1355–1355.
13.
Akhtar, Naseem, Muhammad Izzuddin Syakir Ishak, Mardiana Idayu Ahmad, et al.. (2021). Modification of the Water Quality Index (WQI) Process for Simple Calculation Using the Multi-Criteria Decision-Making (MCDM) Method: A Review. Water. 13(7). 905–905.
14.
Yaqoob, Asim Ali, Mohamad Nasir Mohamad Ibrahim, Khalid Umar, et al.. (2021). A glimpse into the microbial fuel cells for wastewater treatment with energy generation. Desalination and Water Treatment. 214. 379–389.
15.
Akhtar, Naseem, Muhammad Izzuddin Syakir Ishak, Showkat Ahmad Bhawani, & Khalid Umar. (2021). Various Natural and Anthropogenic Factors Responsible for Water Quality Degradation: A Review. Water. 13(19). 2660–2660.
16.
Haseen, Uzma, Syed Ghazanfar Ali, Khalid Umar, et al.. (2021). Dimercaptosuccinic Acid Functionalized Polystyrene Column for Trace Concentration Determination of Heavy Metal Ions: Experimental and Theoretical Calculation Studies. Water. 13(21). 3056–3056.
17.
Yaqoob, Asim Ali, Mohamad Nasir Mohamad Ibrahim, Khalid Umar, et al.. (2020). Cellulose Derived Graphene/Polyaniline Nanocomposite Anode for Energy Generation and Bioremediation of Toxic Metals via Benthic Microbial Fuel Cells. Polymers. 13(1). 135–135.
18.
Yaqoob, Asim Ali, Asma Khatoon, Siti Hamidah Mohd Setapar, et al.. (2020). Outlook on the Role of Microbial Fuel Cells in Remediation of Environmental Pollutants with Electricity Generation. Catalysts. 10(8). 819–819.
19.
Reddy, A. Vijaya Bhaskar, Jafariah Jaafar, Zulkifli Abdul Majid, et al.. (2015). RELATIVE EFFICIENCY COMPARISON OF CARBOXYMETHYL CELLULOSE (CMC) STABILIZED Fe 0 AND Fe 0 /Ag NANOPARTICLES FOR RAPID DEGRADATION OF CHLORPYRIFOS IN AQUEOUS SOLUTIONS. Digest Journal of Nanomaterials and Biostructures. 10(2). 331–340.
20.
Umar, Sadiq, Khalid Umar, Niyaz Ahmad, et al.. (2013). Piperine ameliorates oxidative stress, inflammation and histological outcome in collagen induced arthritis. Cellular Immunology. 284(1-2). 51–59.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.
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